Display panel and elevation adjusting base of the same

This application claims the benefit of Taiwan application Serial No. 095109057, filed Mar. 16, 2006, the subject matter of which is incorporated herein by reference.

1. Field of the Invention

The invention relates in general to a display, and more particularly to an elevation adjustable display.

2. Description of the Related Art

Liquid crystal display has become a main stream display device in electronic products. Compared with the conventional cathode ray tube (CRT) display, liquid crystal display has the advantages of compactness, light weight, and slimness. Currently, many users dispose a liquid crystal display on an elevation adjusting base so that the elevation of the liquid crystal display can be adjusted to fit the view-angle and users' personal preferences.

Referring to FIG. 1 , a 3-D perspective of a conventional elevation adjusting base is shown. The display is disposed on the top plate 105 . The body 101 is a hollow body for receiving the elevation shaft 103 . The body 101 has a fixing spring 107 . One end of the fixing spring 107 is fixed on the body 101 , and the other end is fixed on the elevation shaft 103 . The fixing spring 107 is used for providing a resisting force to support the gravity of the display. Let the weight of the display be W, and the elastic force of the fixing spring 107 be F. When W is larger than F, the elevation shaft 103 will drop to a balanced state. When F is larger than W, the elevation shaft 103 will rise to another balanced state. When the display is disposed on the top plate 105 and an user has already adjusted the elevation of the elevation adjusting base according to the view-angle and personal preference, the elevation of the elevation shaft 103 may not be able to meet the target elevation if the weight of the display is larger than or smaller than the elastic force of the fixing spring 107 , causing inconvenience to the user.

The invention is directed to a display and an elevation adjusting base thereof allowing a user to adjust the elevation according to personal preferences. The display can be accurately adjusted to a target position by the user.

According to a first aspect of the present invention, a display including a body and an elevation adjusting base is provided. The elevation adjusting base is secured to the body. The elevation adjusting base includes a base, an elevation adjusting mechanism, an outer bushing, an inner bushing and a friction ring. The elevation adjusting mechanism is connected to the base. The outer bushing is connected to the base and mounted on the elevation adjusting mechanism. The inner bushing is embedded inside the outer bushing. The friction ring is disposed between the outer bushing and the inner bushing. After the elevation of the elevation adjusting mechanism is adjusted, the friction ring provides a friction force between the outer bushing and the inner bushing to fix the elevation of the elevation adjusting mechanism.

According to a second aspect of the present invention, an elevation adjusting base of a display is provided. The elevation adjusting base includes a base, an elevation adjusting mechanism, an outer bushing, an inner bushing and a friction ring. The elevation adjusting mechanism is connected to the base. The outer bushing is connected to the base and mounted on the elevation adjusting mechanism. The inner bushing is embedded inside the outer bushing. The friction ring is disposed between the outer bushing and the inner bushing. After the elevation of the elevation adjusting mechanism is adjusted, the friction ring provides a friction force between the outer bushing and the inner bushing to fix the elevation of the elevation adjusting mechanism.

The invention will become apparent from the following detailed description of the preferred but non-limiting embodiments. The following description is made with reference to the accompanying drawings.

(Prior Art) FIG. 1 is a 3-D perspective of a conventional elevation adjusting base;

FIG. 2A is a 3-D perspective of a liquid crystal display;

FIG. 2B is an exploded diagram of an elevation adjusting base;

FIG. 3A is a 3-D perspective of a friction ring

FIG. 3B is a 3-D perspective of an outer bushing;

FIG. 3C is a 3-D perspective when the outer bushing and the friction ring are separated; and

FIG. 4 is a 3-D perspective when the outer bushing and the friction ring are assembled.

Referring to both FIG. 2A and FIG. 2B . FIG. 2A is a 3-D perspective of a liquid crystal display. The display 200 includes a body 201 and an elevation adjusting base 203 . The elevation adjusting base 203 is secured to the body 201 . The elevation adjusting base 203 includes a base 205 , an elevation adjusting mechanism 207 (illustrated in FIG. 2B ), an outer bushing 209 , an inner bushing 211 , a friction ring 213 and a fixing part 217 . The base 205 is used for supporting the weight of the body 201 and the elevation adjusting base 203 . The elevation adjusting base 203 is secured to the inner bushing 211 and the body 201 via the fixing part 217 . As indicated in FIG. 2B , the elevation adjusting mechanism 207 includes a body 220 , an elevation shaft and an elastic element 224 . Examples of the elevation shaft include a first elevation shaft 222 a and a second elevation shaft 222 b . The body 220 has at least an aperture. Examples of the aperture include a first aperture 226 a and a second aperture 226 b . The first elevation shaft 222 a and the second elevation shaft 222 b are movably and correspondingly disposed inside the first aperture 226 a and the second aperture 226 b . The elastic element 224 is preferably a fixing spring whose one end is fixed on the body 220 and the other end is fixed on elevation shaft to provide a restoring force to support the weight of the body 201 . However, the elevation shaft is not limited to two shafts. As long as the shaft support the adjustment of the elevation will do.

With the disposition of the elastic element 224 alone to support the weight of the body 201 , the elevation of the elevation adjusting base 203 is still unable to be accurately controlled due to the tolerance of the elastic element 224 . Therefore, in the present embodiment of the invention, the friction ring 213 is disposed for enabling the user to more accurately control the elevation of the elevation adjusting base 203 . Referring to FIG. 3A , a 3-D perspective of a friction ring is shown. The friction ring 213 has an inward protrusion and a bump. Examples of the inward protrusion include a first inward protrusion 231 a and a second inward protrusion 231 b . Examples of the bump include a first bump 233 a and a second bump 233 b as illustrated in FIG. 4 . There are a first opening 235 a and a second opening 235 b disposed at the two sides of the first inward protrusion 231 a and the second inward protrusion 231 b . The first opening 235 a and the second opening 235 b are used for providing the first inward protrusion 231 a and the second inward protrusion 231 b with a deformation space. For example, when the first inward protrusion 231 a and the second inward protrusion 231 b are compressed from directions A 1 and A 2 , the deformation space enables the first inward protrusion 231 a and the second inward protrusion 231 b to be moved towards directions A 1 ′ and A 2 ′ direction via the first opening 235 a and the second opening 235 b.

Referring to FIG. 3B , a 3-D perspective of an outer bushing is shown. The outer bushing 209 includes a guide rail 243 and an outward protrusion. Examples of the outward protrusion include a first outward protrusion 241 a and a second outward protrusion 241 b . The guide rail 243 surrounds the inner diameter of the outer bushing 209 . Referring to FIGS. 3C and 4 . FIG. 3C is a 3-D perspective when the outer bushing and the friction ring are separated. FIG. 4 is a 3-D perspective when the outer bushing and the friction ring are assembled. When the friction ring 213 is engaged inside the outer bushing 209 , the first bump 233 a and the second bump 233 b can slide inside the guide rail 243 . Therefore, when the friction ring 213 is rotated, the first bump 233 a and the second bump 233 b are moved along the guide rail 243 . When the first inward protrusion 231 a approaches the first outward protrusion 241 a , the first outward protrusion 241 a will compress the first inward protrusion 231 a for enabling the first inward protrusion 231 a to move inwardly. Likewise, the second outward protrusion 241 b will compress the second inward protrusion 231 b to move inwardly. The first inward protrusion 231 a and the second inward protrusion 231 b which are compressed inwardly will resist the inner bushing 211 (illustrated in FIG. 2B ) to provide the inner bushing 211 with a friction force to halt the change in the elevation of the elevation adjusting base 203 .

The display and the base thereof disclosed in the above embodiment of the invention are applicable to support different displays including liquid crystal display, plasma display and CRT display. Via the friction force provided by the friction ring, the user is able to accurately adjust the elevation of the display panel to fit the view-angle and personal preferences, further increasing product value.

While the invention has been described by way of example and in terms of a preferred embodiment, it is to be understood that the invention is not limited thereto. On the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.