A display device capable of reducing power consumption and preventing luminance changes, and a driving method thereof are provided. The display device includes: a display panel displaying a still image and a motion picture; a signal controller controlling signals for driving the display panel; a graphic processing unit transmitting input image data to the signal controller; a light source unit irradiating the display panel with light; and a light source driver controlling signals for driving the light source unit, in which the signal controller includes a frame memory storing the input image data and controls the display panel so as to be driven at a first frequency or a second frequency, and the light source driver drives the light source unit at a first ratio when the display panel is driven at the first frequency and at a second ratio when the display panel is driven at the second frequency.

Claims

12 · 2 independent · depth 4

12 granted claims

›1.independentA display device, comprising:na display panel configured to display both a still image and a motion picture;a signal controller configured to control …+5

›2.↳ 1The display device of claim 1, wherein:nthe signal controller further includesa signal receiving unit configured to transmit the input image data from…d2

›3.↳ 1The display device of claim 1, wherein:nthe light source driver includesa driving frequency receiving unit configured to receive a driving frequency o…d2

›4.↳ 1The display device of claim 1, wherein: the signal controller further includes a frame counting unit configured to count the number of sequential fram…d2+2

›7.independentA driving method of a display device, comprising:ntransmitting input image data to a signal controller from a graphic processing unit;applying a still…+5

›8.↳ 7The driving method of a display device of claim 7, further comprisingncounting a number of sequential frames of the still image inputted after the sti…d2+2

›11.↳ 7The driving method of a display device of claim 7, wherein:nthe first ratio and the second ratio are selected by using at least one of a lookup table …d2

›12.↳ 7The driving method of a display device of claim 7, wherein:na conversion from driving the display panel at the first frequency to driving the display …d2

Classifications

1 codes

IPC · International Patent Classification

Section G — Physics

G09G3/36

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Pendency

3.1 y

1,148 days filing → grant

Office actions

non-final + final

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no RCE

Examiner

Yong H Sim

art unit 2621 · TC 2600

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Citations: 18 back · 0 forward

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1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20130106895 A1	2 May 2013

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