Display panel

The present invention generally relates to an electronic device, in particular, to a display panel.

In a liquid crystal display panel, a bonding material (usually referred to as sealant) is disposed between a top substrate and a bottom substrate to form a planar cavity. The bonding material is frame-like with an opening for a vacuum injection process. In the vacuum injection process, liquid crystal molecules are introduced into the planar cavity through the opening when the planar cavity is subjected to a high vacuum. Once the planar cavity is filled with the liquid crystal molecules, the opening must be sealed by means of a plug material (usually referred to as end-seal). The interaction between the end-seal and the liquid crystal molecules however disorientates the liquid crystal molecules, and the so-called end-seal mura occurs. The existence of end-seal mura in a display region of the liquid crystal display panel would seriously detract from display quality.

Accordingly, the present invention is directed to a display panel that will either eliminate or substantially reduce the end-seal mura in the display region of the liquid crystal display panel.

According to an embodiment, a display panel includes a top substrate, a bottom substrate, a display medium layer disposed between the top substrate and the bottom substrate, and a sealant. The sealant includes a frame portion surrounding a region and the display medium layer distributing in the region, and an injection portion connected to the frame portion. The injection portion has a channel path, an inner opening and an outer opening. The channel path is communicated to the region at the inner opening, and the outer opening is at a distal end of the channel path away from the region. The injection portion includes a first wall, a second wall and a third wall. The first wall is spaced from the second wall at a first direction to form the outer opening. The third wall is spaced from the second wall at a second direction and shields the outer opening. The first direction is intersected with the second direction.

According to the embodiments of the disclosure, the channel path of the injection portion of the sealant is bent so as to elongate its effective length. Compared to the effective length of the channel path of the injection portion, the end-seal extends in the channel path for a relatively short length and close the outer opening of the channel path. Therefore, the material of the display medium layer interacting with the uncured material of the end-seal may be restricted in the channel path defined by the injection portion. Without the influence of the end-seal, the liquid crystal molecules spread in the display region can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel, thereby improving the quality of the display panel.

To make the aforementioned more comprehensible, several embodiments accompanied with drawings are described in detail as follows.

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the disclosure and, together with the description, serve to explain the principles of the disclosure.

FIG. 1A schematically illustrates a top view of a display panel in accordance with an embodiment of the present disclosure.

FIG. 1B is a schematic cross-sectional view along a cross-sectional line I-I′ of FIG. 1A .

Each of FIGS. 2 to 21 schematically illustrates a top view of an injection portion of the sealant in a display panel in accordance with an embodiment of the present disclosure.

FIG. 1A schematically illustrates a top view of a display panel in accordance with an embodiment of the present disclosure. FIG. 1B is a schematic cross-sectional view along a cross-sectional line I-I′ of FIG. 1A . Referring to FIG. 1A and FIG. 1B , the display panel DP 1 has a first region 102 and a second region 104 . As viewed from above, the first region 102 has a frame-like pattern and encloses the second region 104 . The first region 102 serves as the non-display region. In some embodiments, the first region 102 may be known as a region where a light shielding layer (not shown) exists. Besides, images are rendered and presented in the second region 104 so that the second region 104 serves as the display region.

The display panel DP 1 includes a top substrate 120 , a bottom substrate 130 , a display medium layer 140 , a sealant 150 and an end-seal 160 . The top substrate 120 and the bottom substrate 130 are arranged opposite to each other and the sealant 150 is disposed between the top substrate 120 and the bottom substrate 130 . The top substrate 120 and the bottom substrate 130 are bonded together with the sealant 150 . The sealant 150 is of uniform thickness so that the top substrate 120 and the bottom substrate 130 are spaced evenly apart. The display medium layer 140 , which mainly distributes in first region 102 , is disposed between the top substrate 120 and the bottom substrate 130 . The display medium layer 140 is enclosed by the top substrate 120 , the bottom substrate 130 , the sealant 150 , and the end-seal 160 .

The sealant 150 includes a frame portion 151 and an injection portion 152 . The frame portion 151 located in the first region 102 surrounds the second region 104 . The frame portion 151 has a frame-like shape and basically extends around the entire periphery of the display panel DP 1 . The frame portion 151 has two ends opposite to each other and the injection portion 152 is connected to the two opposite ends of the frame portion 151 . The injection portion 152 has a channel path PTH 1 , an inner opening OI 1 and an outer opening OT 1 . The channel path PTH 1 is communicated to the second region 104 at the inner opening OI 1 . The outer opening OT 1 is at a distal end of the channel path PTH 1 away from the second region 104 . The inner opening OI 1 and the outer opening OT 1 have sufficient size allowing the material of the display medium layer 140 to flow through the channel path PTH 1 and into the second region 104 during the vacuum injection process. In the embodiment, the material of the display medium layer 140 may include liquid crystal molecules.

The injection portion 152 includes a first wall WL 1 a , a second wall WL 2 a , and a third wall WL 3 a . The first wall WL 1 a is spaced from the second wall WL 2 a at a first direction, for example, the Y direction, to form the outer opening OT 1 . Namely, the outer opening OT 1 is defined by an end of the first wall WL 1 a and an end of the second wall WL 2 a . The third wall WL 3 a , which shields the outer opening OT 1 , is spaced from the second wall WL 2 a at a second direction, for example, the X direction, to form the inner opening OIL Namely, the inner opening OI 1 is defined by an end of the third wall WL 3 a and an end of the second wall WL 2 a . The third wall WL 3 a is situated behind the outer opening OT 1 but not closing the outer opening OT 1 off from communication with the second region 104 via the channel path PTH 1 . The boundary of the injection portion 152 is defined by a first wall WL 1 a , a second wall WL 2 a , and a third wall WL 3 a.

The first wall WL 1 a is intersected with the third wall WL 3 a to form a first turn T 1 a of the channel path PTH 1 . The third wall WL 3 a is connected between the first wall WL 1 a and one end of the frame portion 151 . The second wall WL 2 a connected to the other end of the frame portion 151 is parallel to the first wall WL 1 a . Although the first wall WL 1 a , the second wall WL 2 a , and the third wall WL 3 a are straight respectively, together they constitute the channel path PTH 1 of L-shaped geometry. Because the channel path PTH 1 is bent, its effective length is elongated. Compared to the effective length of the channel path PTH 1 of the injection portion 152 , the end-seal 160 extends in the channel path PTH 1 for a relatively short length and closes the outer opening OT 1 of the channel path PTH 1 . Therefore, the material of the display medium layer 140 interacting with the uncured material of the end-seal 160 may be restricted in the channel path PTH 1 defined by the injection portion 152 .

To fabricate the display panel DP 1 , the material of the display medium layer 140 are introduced into a planar cavity defined by the top substrate 120 , the bottom substrate 130 , and the sealant 150 through the outer opening OT 1 in a vacuum injection process. Once the planar cavity is filled with the material of the display medium layer 140 , such as liquid crystal molecules, the outer opening OT 1 is sealed by means of the end-seal 160 . As set forth above, the liquid crystal molecules distributed in the injection portion 152 may interact with the uncured material of the end-seal 160 , while the liquid crystal molecules distributed in the second region 104 do not. Without the influence of the end-seal 160 , the liquid crystal molecules spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

The sealant 150 is generally made of light curable materials or thermal curable materials. The sealant 150 may be dispensed onto the top substrate 120 or the bottom substrate 130 by a dispenser or be printed by screen printing. To cure the sealant 150 , the top substrate 120 is preferably transparent to allow light to penetrate therethrough. Typically, the material of the top substrate 120 may be glass, quartz, or the like. The display panel DP 1 may further include an electrode layer (not shown) disposed between the top substrate 120 and the display medium layer 140 . Although the bottom substrate 130 is presented as a plate-like structure in FIG. 1B , the bottom substrate 130 may be a transistor array substrate, which includes a support substrate and a transistor array. The support substrate may be, for example but not limited thereto, a glass plate, or a silicon backplane. The transistor array may be, for example but not limited thereto, a thin film transistor array or a CMOS (Complementary Metal-Oxide Semiconductor) device array. The transistor array (not shown) and the electrode layer may be used to provide electric field to drive and realign the display medium layer 140 . The material of the display medium layer 140 may be liquid crystal so that the top substrate 120 , the bottom substrate 130 , the display medium layer 140 , the sealant 150 , and the end-seal 160 may serve as a liquid crystal cell. In some embodiments, the display panel DP 1 may be a Thin Film Transistor Liquid Crystal Display (TFT-LCD) panel or an LCoS (Liquid Crystal on Silicon) display panel.

In FIG. 1A , the first direction, the Y direction, is intersected with the second direction, the X direction. In some embodiments, the first direction and the second direction are perpendicular to each other. In some embodiments, the first wall WL 1 a and the second wall WL 2 a in FIG. 1A are extended along one of the X direction and the Y direction, and the third wall WL 3 a is extended along the other of the X direction and the Y direction. In other embodiments, the first wall, the second wall and the third wall may be tilted with respect to either the Y direction or the X direction. In other embodiments, at least one of the first wall, the second wall and the third wall is inclined from either the X direction or the Y direction. In other embodiments, the angle between the first wall and the third wall is either an obtuse angle or an acute angle. The outer opening OT 1 spans in the first direction, the Y direction, and the inner opening OH spans in the second direction, the X direction.

In FIG. 1A , the channel path PTH 1 has a labyrinth-like structure. The exact structure of the channel path PTH 1 may vary according to different design consideration. For example, Each of FIGS. 2 to 21 schematically illustrates a top view of an injection portion of the sealant in a display panel in accordance with an embodiment of the present disclosure. To clarify the modifications between embodiments about to be mentioned and the aforementioned embodiments, the same reference numerals and notations denote the same components in the following description, and similar parts are not detailed redundantly.

Specifically, an injection portion 252 shown in FIG. 2 may replace the injection portion 152 shown in FIG. 1A . As shown in FIG. 2 , the injection portion 252 includes a first wall WL 1 b , a second wall WL 2 b , a third wall WL 3 b , and a fourth wall WL 4 b . The first wall WL 1 b is spaced from the second wall WL 2 b at a first direction, for example, the X direction, to form an outer opening OT 2 . The third wall WL 3 b , which shields the outer opening OT 2 , is spaced from the second wall WL 2 b at a second direction, for example, the Y direction. The third wall WL 3 b is spaced from the frame portion 151 and the fourth wall WL 4 b at the first direction to form an inner opening OI 2 .

The first wall WL 1 b is parallel to the fourth wall WL 4 b . The second wall WL 2 b is parallel to the third wall WL 3 b . The first wall WL 1 b and the third wall WL 3 b are connected to one end of the frame portion 151 . The third wall WL 3 b is connected to an end of the first wall WL 1 b . The fourth wall WL 4 b is connected between the second wall WL 2 b and the other end of the frame portion 151 . An extension direction of the first wall WL 1 b is intersected with an extension of the second wall WL 2 b and the outer opening OT 2 is formed between an end of the first wall WL 1 b and an end of the second wall WL 2 b . The second wall WL 2 b shields the inner opening OI 2 .

A channel path PTH 2 is defined by the first wall WL 1 b , the second wall WL 2 b , the third wall WL 3 b , and the fourth wall WL 4 b . Although the first wall WL 1 b , the second wall WL 2 b , the third wall WL 3 b , and the fourth wall WL 4 b are straight respectively, together they constitute the channel path PTH 2 of bent geometry. The first wall WL 1 b is intersected with the third wall WL 3 b to form a first turn T 1 b of a channel path PTH 2 . The fourth wall WL 4 b is intersected with the second wall WL 2 b to form a second turn T 2 b of the channel path PTH 2 . Because the channel path PTH 2 is bent, the effective length of the channel path PTH 2 is essentially elongated and the end-seal 260 extends a relatively short length in the channel path PTH 2 . When the injection portion 252 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the uncured material of the end-seal 260 is restricted in the injection portion 252 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 352 shown in FIG. 3 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 3 , the injection portion 352 includes the first wall WL 1 b , the second wall WL 2 b , a third wall WL 3 c , the fourth wall WL 4 b , and a fifth wall WL 5 c . Herein, the first wall WL 1 b , the second wall WL 2 b and the fourth wall WL 4 b of the injection portion 352 may be arranged in a similar manner as the first wall WL 1 b , the second wall WL 2 b and the fourth wall WL 4 b of the injection portion 252 so that the same reference numbers are used for indicating the similar components. The first wall WL 1 b is spaced from the second wall WL 2 b at the first direction, the X direction, to form the outer opening OT 2 . The third wall WL 3 c , which shields the outer opening OT 2 , is spaced from the second wall WL 2 b at the second direction, the Y direction. The fifth wall WL 5 c is spaced from the frame portion 151 and the first wall WL 1 b at the first direction to form an inner opening OI 3 .

The first wall WL 1 b is parallel to the fourth wall WL 4 b . The second wall WL 2 b is parallel to the third wall WL 3 c and the fifth wall WL 5 c . The third wall WL 3 b is connected to a point of the first wall WL 1 b and the point is positioned between two opposite ends of the first wall WL 1 b . The fourth wall WL 4 b and the fifth wall WL 5 c are connected to one end of the frame portion 151 . An extension direction of the first wall WL 1 b is intersected with an extension of the second wall WL 2 b and the outer opening OT 2 is formed between an end of the first wall WL 1 b and an end of the second wall WL 2 b.

In the embodiment, a channel path PTH 3 defined by the injection portion 352 is twisted counterclockwise. The boundary of the injection portion 352 is defined by the first wall WL 1 b , the second wall WL 2 b and the third wall WL 3 c , and the fourth wall WL 4 b . Although the first wall WL 1 b , the second wall WL 2 b , the third wall WL 3 c , the fourth wall WL 4 b , and the fifth wall WL 5 c are straight respectively, together they constitute the channel path PTH 3 of bent geometry. The first wall WL 1 b is intersected with the third wall WL 3 c to form a first turn T 1 c of the channel path PTH 3 . The fourth wall WL 4 b is intersected with the second wall WL 2 b to form the second turn T 2 b of the channel path PTH 3 . The fourth wall WL 4 b is intersected with the fifth wall WL 5 c to form the third turn T 3 c of the channel path PTH 3 . The first wall WL 1 b is intersected with the third wall WL 3 c to form a T shape so that a four turn T 4 c of the channel path PTH 3 is defined at a side of the third wall WL 3 c opposite to the first turn T 1 c . Because the channel path PTH 3 is bent, the effective length of the channel path PTH 3 is essentially elongated and the end-seal 360 extends a relatively short length in the channel path PTH 3 . When the injection portion 352 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1 B, the material of the display medium layer 140 that may interact with the uncured material of the end-seal 360 is restricted in the injection portion 352 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 452 shown in FIG. 4 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 4 , the injection portion 452 , similar to the injection portion 352 in FIG. 3 , includes the first wall WL 1 b , the second wall WL 2 b , a third wall WL 3 c , the fourth wall WL 4 b , and the fifth wall WL 5 c and further includes a sixth wall WL 6 d . The sixth wall WL 6 d is parallel to the first wall WL 1 b and the fourth wall WL 4 b . The third wall WL 3 c is connected to a point of the first wall WL 1 b and the point is positioned between two opposite ends of the first wall WL 1 b . The third wall WL 3 c is connected to a point of the sixth wall WL 6 d and the point is positioned between two opposite ends of the sixth wall WL 6 d.

In the embodiment, a channel path PTH 4 defined by the injection portion 452 is twisted counterclockwise. The boundary of the injection portion 452 is defined by the first wall WL 1 b , the second wall WL 2 b and the third wall WL 3 c , and the fourth wall WL 4 b . Although the first wall WL 1 b through the sixth wall WL 6 d are straight respectively, together they constitute the channel path PTH 4 of bent geometry. The first wall WL 1 b is intersected with the third wall WL 3 c to form a first turn T 1 c of the channel path PTH 4 . The fourth wall WL 4 b is intersected with the second wall WL 2 b to form the second turn T 2 b of the channel path PTH 4 . The fourth wall WL 4 b is intersected with the fifth wall WL 5 c to form the third turn T 3 c of the channel path PTH 4 . The first wall WL 1 b is intersected with the third wall WL 3 c to form a T shape so that a fourth turn T 4 c of the channel path PTH 3 is defined at a side of the third wall WL 3 c opposite to the first turn T 1 c . Because the channel path PTH 4 is bent, the effective length of the channel path PTH 4 is essentially elongated and the end-seal 360 extends a relatively short length in the channel path PTH 4 . When the injection portion 452 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 360 is restricted in the injection portion 452 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 552 shown in FIG. 5 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 5 , the injection portion 552 , similar to the injection portion 452 in FIG. 4 , includes the first wall WL 1 b , the second wall WL 2 b , a third wall WL 3 c , the fourth wall WL 4 b , the fifth wall WL 5 c , and the sixth wall WL 6 d and further includes a seventh wall WL 7 e and an eighth wall WL 8 e . The seventh wall WL 7 e and the eighth wall WL 8 e are parallel to the first wall WL 1 b , the fourth wall WL 4 b , and the sixth wall WL 6 d . The seventh wall WL 7 e and the eighth wall WL 8 e are connected to the second wall WL 2 b and the fifth wall WL 5 c respectively.

The boundary of the injection portion 552 defining a channel path PTH 5 is defined by the first wall WL 1 b , the second wall WL 2 b and the third wall WL 3 c , and the fourth wall WL 4 b . Although the first wall WL 1 b through the eighth wall WL 8 e are straight respectively, together they constitute the channel path PTH 5 of bent geometry. The first wall WL 1 b is intersected with the third wall WL 3 c to form the first turn T 1 c of a channel path PTH 5 . The fourth wall WL 4 b is intersected with the second wall WL 2 b to form the second turn T 2 b of the channel path PTH 5 . The fourth wall WL 4 b is intersected with the fifth wall WL 5 c to form the third turn T 3 c of the channel path PTH 5 . The first wall WL 1 b is intersected with the third wall WL 3 c to form a T shape so that a four turn T 4 c of the channel path PTH 3 is defined at a side of the third wall WL 3 c opposite to the first turn T 1 c . The sixth wall WL 6 d is intersected with the third wall WL 3 c to form a fifth turn T 5 e and a sixth turn T 6 e of the channel path PTH 5 . The seventh wall WL 7 e and the eighth wall WL 8 e are intersected with the second wall WL 2 b and the fifth wall WL 5 c respectively to form a seventh turn T 7 e and an eighth turn T 8 e of the channel path PTH 5 . Because the channel path PTH 5 is bent, the effective length of the channel path PTH 5 is essentially elongated and the end-seal 560 extends a relatively short length in the channel path PTH 5 . When the injection portion 552 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 560 is restricted in the injection portion 552 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 652 shown in FIG. 6 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 6 , the injection portion 652 , similar to the injection portion 252 in FIG. 2 , includes the first wall WL 1 b , the second wall WL 2 b , the third wall WL 3 b , and the fourth wall WL 4 b and further includes a fifth wall WL 5 f , and a sixth wall WL 6 f . The first wall WL 1 b is spaced from the second wall WL 2 b at the first direction to form the outer opening OT 2 . The third wall WL 3 b , which shields the outer opening OT 2 , is spaced from the second wall WL 2 b at the second direction. The third wall WL 3 b is spaced from the frame portion 151 and the fourth wall WL 4 b at the first direction to form an inner opening OI 3 . The first wall WL 1 b is parallel to the fourth wall WL 4 b , the fifth wall WL 5 f , and the sixth wall WL 6 f . The second wall WL 2 b is parallel to the third wall WL 3 b . The second wall WL 2 b is connected between the fourth wall WL 4 b and the fifth wall WL 5 f . The third wall WL 3 b is connected between the first wall WL 1 b and the sixth wall WL 6 f.

In the embodiment, a channel path PTH 6 defined by the injection portion 652 is alternate clockwise and counterclockwise twisted. The boundary of the injection portion 652 is defined by the first wall WL 1 b , the second wall WL 2 b and the third wall WL 3 b , and the fourth wall WL 4 b . Although the first wall WL 1 b through the sixth wall WL 6 f are straight respectively, together they constitute the channel path PTH 6 of bent geometry. The first wall WL 1 b is intersected with the third wall WL 3 b to form a first turn T 1 b of the channel path PTH 6 . The fourth wall WL 4 b is intersected with the second wall WL 2 b to form the second turn T 2 b of the channel path PTH 6 . The third wall WL 3 b is intersected with the sixth wall WL 6 f to form the third turn T 3 f of the channel path PTH 6 . The second wall WL 2 b is intersected with the fifth wall WL 5 f to form the fourth turn T 4 f of the channel path PTH 6 . Because the channel path PTH 6 is bent, the effective length of the channel path PTH 6 is essentially elongated and the end-seal 660 extends a relatively short length in the channel path PTH 6 . When the injection portion 652 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 660 is restricted in the injection portion 652 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 752 shown in FIG. 7 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 7 , the injection portion 752 , similar to the injection portion 652 in FIG. 6 , includes the first wall WL 1 b , the second wall WL 2 b , the third wall WL 3 b , the fourth wall WL 4 b , and the fifth wall WL 5 f and further includes a seventh wall WL 7 g . The second wall WL 2 b is parallel to the third wall WL 3 b and the seventh wall WL 7 g . The seventh wall WL 7 g is connected to the fifth wall WL 5 f.

The boundary of the injection portion 752 defining a channel path PTH 7 is defined by the first wall WL 1 b , the second wall WL 2 b and the third wall WL 3 b , and the fourth wall WL 4 b . Although the first wall WL 1 b through the seventh wall WL 7 g are straight respectively, together they constitute the channel path PTH 7 of bent geometry. The first wall WL 1 b is intersected with the third wall WL 3 b to form a first turn T 1 b of the channel path PTH 7 . The fourth wall WL 4 b is intersected with the second wall WL 2 b to form the second turn T 2 b of the channel path PTH 7 . The third wall WL 3 b is intersected with the sixth wall WL 6 f to form the third turn T 3 f of the channel path PTH 7 . The second wall WL 2 b is intersected with the fifth wall WL 5 f to form the fourth turn T 4 f of the channel path PTH 7 . Because the channel path PTH 7 is bent, the effective length of the channel path PTH 7 is essentially elongated and the end-seal 760 extends a relatively short length in the channel path PTH 7 . When the injection portion 752 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 760 is restricted in the injection portion 752 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 852 shown in FIG. 8 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 8 , the injection portion 852 , similar to the injection portion 652 in FIG. 6 , includes the first wall WL 1 b , the second wall WL 2 b , the third wall WL 3 b , the fourth wall WL 4 b , the fifth wall WL 5 f , and the seventh wall WL 7 g and further includes an eighth wall WL 8 h . The second wall WL 2 b is parallel to the third wall WL 3 b , the seventh wall WL 7 g , and the eighth wall WL 8 h . The eighth wall WL 8 h is connected to the sixth wall WL 6 f.

In the embodiment, a channel path PTH 8 of the injection portion 852 is alternate clockwise and counterclockwise twisted. The boundary of the injection portion 852 is defined by the first wall WL 1 b , the second wall WL 2 b and the third wall WL 3 b , and the fourth wall WL 4 b . Although the first wall WL 1 b through the eighth wall WL 8 h are straight respectively, together they constitute the channel path PTH 8 of bent geometry. The first wall WL 1 b is intersected with the third wall WL 3 b to form a first turn T 1 b of the channel path PTH 8 . The fourth wall WL 4 b is intersected with the second wall WL 2 b to form the second turn T 2 b of the channel path PTH 8 . The third wall WL 3 b is intersected with the sixth wall WL 6 f to form the third turn T 3 f of the channel path PTH 8 . The second wall WL 2 b is intersected with the fifth wall WL 5 f to form the fourth turn T 4 f of the channel path PTH 8 . The seventh wall WL 7 g is intersected with the fifth wall WL 5 f to form the fifth turn T 5 g of the channel path PTH 8 . The eighth wall WL 8 h is intersected with the sixth wall WL 6 f to form the sixth turn T 6 h of the channel path PTH 8 . Because the channel path PTH 8 is bent, the effective length of the channel path PTH 8 is essentially elongated and the end-seal 660 extends a relatively short length in the channel path PTH 8 . When the injection portion 852 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 660 is restricted in the injection portion 852 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 952 shown in FIG. 9 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 9 , the injection portion 952 , similar to the injection portion 852 in FIG. 8 , includes the first wall WL 1 b , the second wall WL 2 b , the third wall WL 3 b , the fourth wall WL 4 b , the fifth wall WL 5 f , the seventh wall WL 7 g , and the eighth wall WL 8 h and further includes a ninth wall WL 9 i and a tenth wall WL 10 i . The second wall WL 2 b is parallel to the third wall WL 3 b , the seventh wall WL 7 g , the eighth wall WL 8 h , the ninth wall WL 9 i , and the tenth wall WL 10 i . The ninth wall WL 9 i is connected to the sixth wall WL 6 f and the eighth wall WL 8 h . The tenth wall WL 10 i is connected to the fourth wall WL 4 b and one end of the frame portion 151 .

The boundary of the injection portion 952 defining a channel path PTH 9 is defined by the first wall WL 1 b , the second wall WL 2 b and the third wall WL 3 b , and the fourth wall WL 4 b . Although the first wall WL 1 b through the tenth wall WL 10 i are straight respectively, together they constitute the channel path PTH 9 of bent geometry. The first wall WL 1 b is intersected with the third wall WL 3 b to form a first turn T 1 b of the channel path PTH 9 . The fourth wall WL 4 b is intersected with the second wall WL 2 b to form the second turn T 2 b of the channel path PTH 9 . The third wall WL 3 b is intersected with the sixth wall WL 6 f to form the third turn T 3 f of the channel path PTH 9 . The second wall WL 2 b is intersected with the fifth wall WL 5 f to form the fourth turn T 4 f of the channel path PTH 9 . The seventh wall WL 7 g is intersected with the fifth wall WL 5 f to form the fifth turn T 5 g of the channel path PTH 9 . The eighth wall WL 8 h is intersected with the sixth wall WL 6 f to form the sixth turn T 6 h of the channel path PTH 9 . The ninth wall WL 9 i is intersected with the sixth wall WL 6 f to form the seventh turn T 7 i of the channel path PTH 9 . The tenth wall WL 10 i is intersected with the fourth wall WL 4 b to form the eighth turn T 8 i of the channel path PTH 9 . Because the channel path PTH 9 is bent, the effective length of the channel path PTH 9 is essentially elongated and the end-seal 660 extends a relatively short length in the channel path PTH 9 . When the injection portion 952 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 660 is restricted in the injection portion 952 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 1052 shown in FIG. 10 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 10 , the injection portion 1052 , similar to the injection portion 252 in FIG. 2 , includes the first wall WL 1 b , the second wall WL 2 b , the third wall WL 3 b , and the fourth wall WL 4 b and further includes a fifth wall WL 5 j . The first wall WL 1 b is spaced from the second wall WL 2 b at the first direction to form the outer opening OT 2 . The third wall WL 3 b , which shields the outer opening OT 2 , is spaced from the second wall WL 2 b at the second direction. The third wall WL 3 b is spaced from the frame portion 151 and the fourth wall WL 4 b at the first direction to form an inner opening OI 2 The first wall WL 1 b is parallel to the fourth wall WL 4 b and the fifth wall WL 5 j . The second wall WL 2 b is parallel to the third wall WL 3 b . The fifth wall WL 5 j is connected to a point of the second wall WL 2 b and the point is positioned between two opposite ends of the second wall WL 2 b . The first wall WL 1 b and the third wall WL 3 b are connected to one end of the frame portion 151 . The fourth wall WL 4 b is connected between the second wall WL 2 b and the other end of the frame portion 151 .

The boundary of the injection portion 1052 defining a channel path PTH 10 is defined by the first wall WL 1 b , the second wall WL 2 b and the third wall WL 3 b , and the fourth wall WL 4 b . Although the first wall WL 1 b through the fifth wall WL 5 j are straight respectively, together they constitute the channel path PTH 10 of bent geometry. The first wall WL 1 b is intersected with the third wall WL 3 b to form a first turn T 1 b of the channel path PTH 10 . The fourth wall WL 4 b is intersected with the second wall WL 2 b to form the second turn T 2 b of the channel path PTH 10 . Because the channel path PTH 10 is bent, the effective length of the channel path PTH 10 is essentially elongated and the end-seal 260 extends a relatively short length in the channel path PTH 10 . When the injection portion 1052 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 260 is restricted in the injection portion 1052 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 1152 shown in FIG. 11 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 11 , the injection portion 1152 is similar to the injection portion 1052 shown in FIG. 10 . Compared to the injection portion 1052 shown in FIG. 10 , the injection portion 1152 further includes a sixth wall WL 6 k . The second wall WL 2 b is parallel to the third wall WL 3 b and the sixth wall WL 6 k . The fifth wall WL 5 j is connected to the sixth wall WL 6 k and the second wall WL 2 b.

The boundary of the injection portion 1152 defining a channel path PTH 11 is defined by the first wall WL 1 b , the second wall WL 2 b and the third wall WL 3 b , and the fourth wall WL 4 b . Although the first wall WL 1 b through the sixth wall WL 6 k are straight respectively, together they constitute the channel path PTH 11 of bent geometry. The first wall WL 1 b is intersected with the third wall WL 3 b to form a first turn T 1 b of the channel path PTH 11 . The fourth wall WL 4 b is intersected with the second wall WL 2 b to form the second turn T 2 b of the channel path PTH 11 . Because the channel path PTH 11 is bent, the effective length of the channel path PTH 11 is essentially elongated and the end-seal 1160 extends a relatively short length in the channel path PTH 11 . When the injection portion 1152 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 1160 is restricted in the injection portion 1152 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 1252 shown in FIG. 12 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 12 , the injection portion 1252 , similar to the injection portion 1152 in FIG. 11 , includes the first wall WL 1 b , the second wall WL 2 b , the third wall WL 3 b , the fourth wall WL 4 b , the fifth wall WL 5 j , and the sixth wall WL 6 k and further includes a seventh wall WL 7 L. The first wall WL 1 b is parallel to the fourth wall WL 4 b , the fifth wall WL 5 j , and the seventh wall WL 7 L. The seventh wall WL 7 L is connected to the third wall WL 3 b.

The boundary of the injection portion 1252 defining a channel path PTH 12 is defined by the first wall WL 1 b , the second wall WL 2 b and the third wall WL 3 b , and the fourth wall WL 4 b . Although the first wall WL 1 b through the seventh wall WL 7 L are straight respectively, together they constitute the channel path PTH 12 of bent geometry. The first wall WL 1 b is intersected with the third wall WL 3 b to form a first turn T 1 b of the channel path PTH 12 . The fourth wall WL 4 b is intersected with the second wall WL 2 b to form the second turn T 2 b of the channel path PTH 12 . The seventh wall WL 7 L is intersected with the third wall WL 3 b to form a third turn T 3 L of the channel path PTH 12 . The fifth wall WL 5 j is intersected with the second wall WL 2 b to form a fourth turn T 4 L of the channel path PTH 12 . Because the channel path PTH 12 is bent, the effective length of the channel path PTH 12 is essentially elongated and the end-seal 1160 extends a relatively short length in the channel path PTH 12 . When the injection portion 1252 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 1160 is restricted in the injection portion 1252 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 1352 shown in FIG. 13 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 13 , the injection portion 1352 , similar to the injection portion 1252 in FIG. 12 , includes the first wall WL 1 b , the second wall WL 2 b , the third wall WL 3 b , the fourth wall WL 4 b , the fifth wall WL 5 j , the sixth wall WL 6 k , and the seventh wall WL 7 L and further includes an eighth wall WL 8 m . The second wall WL 2 b is parallel to the third wall WL 3 b , the sixth wall WL 6 k , and the eighth wall WL 8 m . The eighth wall WL 8 m is connected to a point of the first wall WL 1 b and the point is positioned between two opposite ends of the first wall WL 1 b.

The boundary of the injection portion 1352 defining a channel path PTH 13 is defined by the first wall WL 1 b , the second wall WL 2 b and the third wall WL 3 b , and the fourth wall WL 4 b . Although the first wall WL 1 b through the eighth wall WL 8 m are straight respectively, together they constitute the channel path PTH 13 of bent geometry. The first wall WL 1 b is intersected with the third wall WL 3 b to form a first turn T 1 b of the channel path PTH 13 . The fourth wall WL 4 b is intersected with the second wall WL 2 b to form the second turn T 2 b of the channel path PTH 13 . The seventh wall WL 7 L is intersected with the third wall WL 3 b to form the third turn T 3 L of the channel path PTH 13 . The fifth wall WL 5 j is intersected with the second wall WL 2 b to form the fourth turn T 4 L of the channel path PTH 13 . The sixth wall WL 6 k is intersected with the fifth wall WL 5 j to form a fifth turn T 5 m of the channel path PTH 13 . The fifth wall WL 5 j is intersected with the second wall WL 2 b to form a sixth turn T 6 m of the channel path PTH 13 . The eighth wall WL 8 m is intersected with the first wall WL 1 b to form a seventh turn T 7 m and an eighth turn T 8 m of the channel path PTH 13 . Because the channel path PTH 13 is bent, the effective length of the channel path PTH 13 is essentially elongated and the end-seal 1360 extends a relatively short length in the channel path PTH 13 . When the injection portion 1352 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 1360 is restricted in the injection portion 1352 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 1452 shown in FIG. 14 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 14 , the injection portion 1452 includes the first wall WL 1 a , a second wall WL 2 n , the third wall WL 3 a , a fourth wall WL 4 n , and a fifth wall WL 5 n . Herein, the first wall WL 1 a and the third wall WL 3 a of the injection portion 1452 may be arranged in a similar manner as the first wall WL 1 a and the third wall WL 3 a of the injection portion 152 so that the same reference numbers are used for indicating the similar components. The first wall WL 1 a is spaced from the second wall WL 2 n at a first direction, for example, the Y direction, to form the outer opening OT 1 . The third wall WL 3 a , which shields the outer opening OT 1 , is spaced from the second wall WL 2 n at a second direction, for example, the X direction. The fourth wall WL 4 n is spaced from the frame portion 151 and the second wall WL 2 n at the second direction to form an inner opening OI 14 .

The first wall WL 1 a is parallel to the fourth wall WL 4 n , and the fifth wall WL 5 n . The second wall WL 2 n is parallel to the third wall WL 3 a . The third wall WL 3 a is connected between the first wall WL 1 a and one end of the frame portion 151 , and the third wall WL 3 a and the fourth wall WL 4 n are connected to the specific end of the frame portion 151 . The second wall WL 2 n is connected between the fifth wall WL 5 n and the other end of the frame portion 151 . An extension direction of the first wall WL 1 a is intersected with an extension of the second wall WL 2 n and the outer opening OT 1 is formed between an end of the first wall WL 1 a and an end of the second wall WL 2 n . The fifth wall WL 5 n shields the inner opening OI 4 .

The boundary of the injection portion 1452 defining a channel path PTH 14 is defined by the first wall WL 1 a , the second wall WL 2 n , the third wall WL 3 a , and the fourth wall WL 4 n . Although the first wall WL 1 a , the second wall WL 2 n and the third wall WL 3 a , the fourth wall WL 4 n , and the fifth wall WL 5 n are straight respectively, together they constitute the channel path PTH 14 of bent geometry. The first wall WL 1 a is intersected with the third wall WL 3 a to form a first turn T 1 a of the channel path PTH 14 . The fourth wall WL 4 n is intersected with the third wall WL 3 a to form a second turn T 2 n of the channel path PTH 14 . The fifth wall WL 5 n is intersected with the second wall WL 2 n to form a third turn T 3 n of the channel path PTH 14 . Because the channel path PTH 14 is bent, the effective length of the channel path PTH 14 is essentially elongated and the end-seal 1460 extends a relatively short length in the channel path PTH 14 . When the injection portion 1452 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 1460 is restricted in the injection portion 1452 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 1552 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 15 , the injection portion 1552 includes the first wall WL 1 a , the second wall WL 2 n , the third wall WL 3 a , a fourth wall WL 4 o , the fifth wall WL 5 n , and a sixth wall WL 6 o . Herein, the first wall WL 1 a , the second wall WL 2 n , the third wall WL 3 a , and the fifth wall WL 5 n of the injection portion 1552 may be arranged in a similar manner as the first wall WL 1 a and the third wall WL 3 a of the injection portion 152 and the second wall WL 2 n and the fifth wall WL 5 n of the injection portion 1452 so that the same reference numbers are used for indicating the similar components. The first wall WL 1 a is spaced from the second wall WL 2 n at the first direction to form the outer opening OT 1 . The third wall WL 3 a , which shields the outer opening OT 1 , is spaced from the second wall WL 2 n at the second direction. The sixth wall WL 6 o is spaced from the frame portion 151 and the third wall WL 3 a at the second direction to form an inner opening OI 5 .

The first wall WL 1 a is parallel to the fourth wall WL 4 o , and the fifth wall WL 5 n , and the sixth wall WL 6 o . The second wall WL 2 n is parallel to the third wall WL 3 a . The third wall WL 3 a is connected between the first wall WL 1 a and one end of the frame portion 151 . The fourth wall WL 4 o is connected to a point of the third wall WL 3 a and the point is positioned between two opposite ends of the third wall WL 3 a . The second wall WL 2 n is connected between the fifth wall WL 5 n and the sixth wall WL 6 o , and the second wall WL 2 n and the sixth wall WL 6 o are connected to the other end of the frame portion 151 . An extension direction of the first wall WL 1 a is intersected with an extension of the second wall WL 2 n and the outer opening OT 1 is formed between an end of the first wall WL 1 a and an end of the second wall WL 2 n . The fourth wall WL 4 o shields the inner opening OI 5 .

In the embodiment, a channel path PTH 15 defined by the injection portion 1552 is alternate clockwise and counterclockwise twisted. The boundary of the injection portion 1552 is defined by the first wall WL 1 a , the second wall WL 2 n , the third wall WL 3 a , and the fourth wall WL 4 o . Although the first wall WL 1 a , the second wall WL 2 n and the third wall WL 3 a , the fourth wall WL 4 n , the fifth wall WL 5 n , and the sixth wall WL 6 o are straight respectively, together they constitute the channel path PTH 15 of bent geometry. The first wall WL 1 a is intersected with the third wall WL 3 a to form a first turn T 1 a of the channel path PTH 15 . The fourth wall WL 4 o is intersected with the third wall WL 3 a to form a second turn T 2 o of the channel path PTH 15 . The fifth wall WL 5 n is intersected with the second wall WL 2 n to form a third turn T 3 n of the channel path PTH 15 . The second wall WL 2 n is intersected with the sixth wall WL 6 o to form a fourth turn T 4 o of the channel path PTH 15 . The fourth wall WL 4 o is intersected with the third wall WL 3 a to form a fifth turn T 5 o of the channel path PTH 15 . Because the channel path PTH 15 is bent, the effective length of the channel path PTH 15 is essentially elongated and the end-seal 1560 extends a relatively short length in the channel path PTH 15 . When the injection portion 1552 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 1560 is restricted in the injection portion 1552 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 1652 shown in FIG. 16 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 16 , the injection portion 1652 includes a first wall WL 1 p , a second wall WL 2 p , a third wall WL 3 p , a fourth wall WL 4 p , a fifth wall WL 5 p , a sixth wall WL 6 p , and a seventh wall WL 7 p . The first wall WL 1 p is spaced from the second wall WL 2 p at a second direction, for example, the X direction, to form an outer opening OT 16 . The third wall WL 3 p , which shields the outer opening OT 16 , is spaced from the first wall WL 1 p and the second wall WL 2 p at a first direction, for example, the Y direction. The sixth wall WL 6 p is spaced from the seventh wall WL 7 p at the second direction to form an inner opening OI 16 . The third wall WL 3 p shields the inner opening OI 16 .

The third wall WL 3 p is parallel to the first wall WL 1 p and the second wall WL 2 p . A channel path PTH 16 branches to a first portion between the first wall WL 1 p and the third wall WL 3 p and a second portion between the second wall WL 2 p and the third wall WL 3 p from the outer opening OT 16 . Similarly, the third wall WL 3 p is parallel to the sixth wall WL 6 p and the seventh wall WL 7 p . The channel path PTH 16 branches to a third portion between the sixth wall WL 6 p and the third wall WL 3 p and a fourth portion between the seventh wall WL 7 p and the third wall WL 3 p from the inner opening OI 16 . The fourth wall WL 4 n is parallel to the fifth wall WL 5 n.

The fourth wall WL 4 p is connected between one end of the frame portion 151 and the second wall WL 2 p , and the fourth wall WL 4 p and the sixth wall WL 6 p are connected to the specific end of the frame portion 151 . The fifth wall WL 5 p is connected between the other end of the frame portion 151 and the first wall WL 1 p , and the fifth wall WL 5 p and the seventh wall WL 7 p are connected to the specific end of the frame portion 151 . The first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p surround the injection portion 1652 . The third wall WL 3 p is spaced from first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p . In the embodiment, the third wall WL 3 p is isolated.

The boundary of the injection portion 1652 defining a channel path PTH 16 is defined by the first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p . Although the first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p are straight respectively, together they constitute the channel path PTH 16 of bent geometry. The first wall WL 1 p is intersected with the fifth wall WL 5 p to form a first turn Tlp of the channel path PTH 16 . The second wall WL 2 p is intersected with the fourth wall WL 4 p to form a second turn T 2 p of the channel path PTH 16 . The fifth wall WL 5 p is intersected with the seventh wall WL 7 p to form a third turn T 3 p of the channel path PTH 16 . The fourth wall WL 4 p is intersected with the sixth wall WL 6 p to form a fourth turn T 4 p of the channel path PTH 16 . Because the channel path PTH 16 is bent, the effective length of the channel path PTH 16 is essentially elongated and the end-seal 1660 extends a relatively short length in the channel path PTH 16 . When the injection portion 1652 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 1660 is restricted in the injection portion 165 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 1752 shown in FIG. 17 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 17 , the injection portion 1752 , similar to the injection portion 1652 in FIG. 16 , the first wall WL 1 p , the second wall WL 2 p , the third wall WL 3 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p and further includes an eighth wall WL 8 q . The eighth wall WL 8 q is parallel to the third wall WL 3 p and shields the inner opening OI 16 . The eighth wall WL 8 q is parallel to the sixth wall WL 6 p and the seventh wall WL 7 p . A channel path PTH 17 branches to a third portion between the sixth wall WL 6 p and the eighth wall WL 8 q and a fourth portion between the seventh wall WL 7 p and the eighth wall WL 8 q from the inner opening OI 16 . The third wall WL 3 p and the eighth wall WL 8 q are spaced from first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p . The third wall WL 3 p and the eighth wall WL 8 q are positioned inside a region surrounded by the first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p and spaced from each other at the first direction, the Y direction. In the embodiment, the third wall WL 3 p and the eighth wall WL 8 q are isolated.

The boundary of the injection portion 1752 defining the channel path PTH 17 is defined by the first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p . The first wall WL 1 p is intersected with the fifth wall WL 5 p to form the first turn Tlp of the channel path PTH 17 . The second wall WL 2 p is intersected with the fourth wall WL 4 p to form the second turn T 2 p of the channel path PTH 17 . The fifth wall WL 5 p is intersected with the seventh wall WL 7 p to form the third turn T 3 p of the channel path PTH 17 . The fourth wall WL 4 p is intersected with the sixth wall WL 6 p to form the fourth turn T 4 p of the channel path PTH 17 . Although the first wall WL 1 p through the eighth wall WL 8 q are straight respectively, together they constitute the channel path PTH 17 of bent geometry. Because the channel path PTH 17 is bent, the effective length of the channel path PTH 17 is essentially elongated and the end-seal 1660 extends a relatively short length in the channel path PTH 17 . When the injection portion 1752 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 1660 is restricted in the injection portion 1752 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 1852 shown in FIG. 18 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 18 , the injection portion 1852 , similar to the injection portion 1652 in FIG. 16 , the first wall WL 1 p , the second wall WL 2 p , the third wall WL 3 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p and further includes an eighth wall WL 8 r . The eighth wall WL 8 r is parallel to the third wall WL 3 p and shields the inner opening OI 16 . The eighth wall WL 8 r is parallel to the sixth wall WL 6 p and the seventh wall WL 7 p . The channel path PTH 18 branches to a third portion between the sixth wall WL 6 p and the eighth wall WL 8 r and a fourth portion between the seventh wall WL 7 p and the eighth wall WL 8 r from the inner opening OI 16 . The eighth wall WL 8 r is connected to the fifth wall WL 5 p and spaced from the fourth wall WL 4 p . The eighth wall WL 8 r is connected to a point of the fifth wall WL 5 p and the point is positioned between two opposite ends of the fifth wall WL 5 p . Together the eighth wall WL 8 r , the fifth wall WL 5 p and the seventh wall WL 7 p form a dead end DD 1 r of the channel path PTH 18 .

The boundary of the injection portion 1852 defining a channel path PTH 18 is defined by the first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p . Although the first wall WL 1 p through the eighth wall WL 8 r are straight respectively, together they constitute the channel path PTH 18 of bent geometry. The first wall WL 1 p is intersected with the fifth wall WL 5 p to form a first turn Tlp of the channel path PTH 18 . The second wall WL 2 p is intersected with the fourth wall WL 4 p to form a second turn T 2 p of the channel path PTH 18 . The fifth wall WL 5 p is intersected with the eighth wall WL 8 r to form a third turn T 3 r of the channel path PTH 18 . The fourth wall WL 4 p is intersected with the sixth wall WL 6 p to form a fourth turn T 4 p of the channel path PTH 18 . The fifth wall WL 5 p is intersected with the eighth wall WL 8 r to form a fifth turn T 5 r of the channel path PTH 18 . Because the channel path PTH 18 is bent, the effective length of the channel path PTH 18 is essentially elongated and the end-seal 1660 extends a relatively short length in the channel path PTH 18 . When the injection portion 1852 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 1660 is restricted in the injection portion 1852 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 1952 shown in FIG. 19 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 19 , the injection portion 1952 includes the first wall WL 1 p , the second wall WL 2 p , a third wall WL 3 s , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p . Herein, the first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p may be arranged in a similar manner as the first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p of the injection portion 1652 so that the same reference numbers are used for indicating the similar components. The third wall WL 3 s , which shields the outer opening OT 16 and the inner opening OI 16 , is spaced from the first wall WL 1 p and the second wall WL 2 p at the first direction, the Y direction.

The third wall WL 3 s is parallel to the first wall WL 1 p and the second wall WL 2 p . A channel path PTH 19 branches to a first portion between the first wall WL 1 p and the third wall WL 3 s and a second portion between the second wall WL 2 p and the third wall WL 3 s from the outer opening OT 16 . Similarly, the third wall WL 3 s is parallel to the sixth wall WL 6 p and the seventh wall WL 7 p . The channel path PTH 19 branches to a third portion between the sixth wall WL 6 p and the third wall WL 3 s and a fourth portion between the seventh wall WL 7 p and the third wall WL 3 s from the inner opening OI 16 . The third wall WL 3 s is connected to the fifth wall WL 5 p and spaced from the fourth wall WL 4 p . The third wall WL 3 s is connected to a point of the fifth wall WL 5 p and the point is positioned between two opposite ends of the fifth wall WL 5 p . Together the third wall WL 3 s , the fifth wall WL 5 p and the seventh wall WL 7 p form a dead end DD 1 s of the channel path PTH 19 . Together the first wall WL 1 p , the third wall WL 3 s , and the fifth wall WL 5 p form a dead end DD 2 s of the channel path PTH 19 .

The boundary of the injection portion 1952 defining a channel path PTH 19 is defined by the first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p . Although the first wall WL 1 p , the second wall WL 2 p , the third wall WL 3 s , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p are straight respectively, together they constitute the channel path PTH 19 of bent geometry. The third wall WL 3 s is intersected with the fifth wall WL 5 p to form a first turn T 1 s of the channel path PTH 19 . The second wall WL 2 p is intersected with the fourth wall WL 4 p to form a second turn T 2 p of the channel path PTH 19 . The fifth wall WL 5 p is intersected with the seventh wall WL 7 p to form a third turn T 3 r of the channel path PTH 19 . The fourth wall WL 4 p is intersected with the sixth wall WL 6 p to form the fourth turn T 4 p of the channel path PTH 19 . Because the channel path PTH 19 is bent, the effective length of the channel path PTH 19 is essentially elongated and the end-seal 1660 extends a relatively short length in the channel path PTH 19 . When the injection portion 1952 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 1660 is restricted in the injection portion 1952 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 2052 shown in FIG. 20 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 20 , the injection portion 2052 is similar to the injection portion 1952 in FIG. 19 and further includes an eighth wall WL 8 t . The eighth wall WL 8 t is parallel to the third wall WL 3 s and shields the inner opening OI 16 . The eighth wall WL 8 t is parallel to the sixth wall WL 6 p and the seventh wall WL 7 p . A channel path PTH 20 branches to a third portion between the sixth wall WL 6 p and the eighth wall WL 8 t and a fourth portion between the seventh wall WL 7 p and the eighth wall WL 8 t from the inner opening OI 16 . The eighth wall WL 8 t are spaced from first wall WL 1 p , the second wall WL 2 p , the third wall WL 3 s , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p . In the embodiment, the eighth wall WL 8 t is isolated.

The boundary of the injection portion 2052 defining the channel path PTH 20 is defined by the first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p . Although the first wall WL 1 p through the eighth wall WL 8 t are straight respectively, together they constitute the channel path PTH 20 of bent geometry. The third wall WL 3 s is intersected with the fifth wall WL 5 p to form the first turn T 1 s of the channel path PTH 20 . The second wall WL 2 p is intersected with the fourth wall WL 4 p to form the second turn T 2 p of the channel path PTH 20 . The fifth wall WL 5 p is intersected with the seventh wall WL 7 p to form the third turn T 3 p of the channel path PTH 20 . The fourth wall WL 4 p is intersected with the sixth wall WL 6 p to form the fourth turn T 4 p of the channel path PTH 20 . The fifth wall WL 5 p is intersected with the third wall WL 3 s to form a fifth turn T 5 t of the channel path PTH 18 . Because the channel path PTH 20 is bent, the effective length of the channel path PTH 20 is essentially elongated and the end-seal 1660 extends a relatively short length in the channel path PTH 20 . When the injection portion 2052 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 1660 is restricted in the injection portion 2052 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

An injection portion 2152 shown in FIG. 21 is another exemplary alternative for replacing the injection portion 152 shown in FIG. 1A . As shown in FIG. 21 , the injection portion 2152 is similar to the injection portion 1952 and further includes an eighth wall WL 8 u . The eighth wall WL 8 u is parallel to the third wall WL 3 s and shields the inner opening OI 16 . The eighth wall WL 8 u is parallel to the sixth wall WL 6 p and the seventh wall WL 7 p . A channel path PTH 21 branches to a third portion between the sixth wall WL 6 p and the eighth wall WL 8 u and a fourth portion between the seventh wall WL 7 p and the eighth wall WL 8 u from the inner opening OI 16 . The eighth wall WL 8 u is connected to the fourth wall WL 4 p and spaced from the fifth wall WL 5 p . Moreover, the third wall WL 3 s is connected to the fifth wall WL 5 p while the eighth wall WL 8 u is connected to the fourth wall WL 4 p . The eighth wall WL 8 u is connected to a point of the fourth wall WL 4 p and the point is positioned between two opposite ends of the fourth wall WL 4 p . Together the second wall WL 2 p , the fourth wall WL 4 p , and the eighth wall WL 8 u form a dead end DD 2 u of the channel path PTH 21 .

In the embodiment, a channel path PTH 21 of the injection portion 2152 is alternate clockwise and counterclockwise twisted. The boundary of the injection portion 2152 defined by the first wall WL 1 p , the second wall WL 2 p , the fourth wall WL 4 p , the fifth wall WL 5 p , the sixth wall WL 6 p , and the seventh wall WL 7 p . Although the first wall WL 1 p through the eighth wall WL 8 u are straight respectively, together they constitute the channel path PTH 21 of bent geometry. The third wall WL 3 s is intersected with the fifth wall WL 5 p to form the first turn T 1 s of the channel path PTH 21 . The second wall WL 2 p is intersected with the fourth wall WL 4 p to form the second turn T 2 p of the channel path PTH 21 . The fifth wall WL 5 p is intersected with the seventh wall WL 7 p to form the third turn T 3 p of the channel path PTH 21 . The fourth wall WL 4 p is intersected with the eighth wall WL 8 u to form a fourth turn T 4 u of the channel path PTH 21 . The fifth wall WL 5 p is intersected with the third wall WL 3 s to form the fifth turn T 5 t of the channel path PTH 21 . Because the channel path PTH 21 is bent, the effective length of the channel path PTH 21 is essentially elongated and the end-seal 1660 extends a relatively short length in the channel path PTH 21 . When the injection portion 2152 is applied to the display panel DP 1 shown in FIG. 1A and FIG. 1B , the material of the display medium layer 140 that may interact with the material of the uncured end-seal 1660 is restricted in the injection portion 2152 and the material of the display medium layer 140 spread in the second region 104 can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel DP 1 , thereby ensuring display quality.

In summary, the channel path of the injection portion of the sealant is bent so as to elongate its effective length. Compared to the effective length of the channel path of the injection portion, the end-seal extends in the channel path for a relatively short length and close the outer opening of the channel path. The material of the display medium layer can interact with the uncured material of the end-seal, and if the interaction occurs, it may be restricted in the channel path defined by the injection portion. Without the influence of the end-seal, the liquid crystal molecules spread in the display region can mostly orient well. This eliminates or substantially reduces the end-seal mura of the display panel, thereby improving the quality of the display panel.

It will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed embodiments without departing from the scope or spirit of the disclosure. In view of the foregoing, it is intended that the disclosure covers modifications and variations provided that they fall in the scope of the following claims and their equivalents.