IP Library Granted Patent US 7,683,880
Granted Patent B2
US 7,683,880 · App. 11/366,437 · Granted Mar 23, 2010

Method of color image display for a field sequential liquid crystal display device

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Quick Facts
Patent No.
US 7,683,880
App. No.
11/366,437
Granted
Mar 23, 2010
Kind
B2
Abstract

A method of displaying a color image for a field sequential liquid crystal display device is provided. The method includes dividing a liquid crystal panel into n numbers of driving areas and turning on each of light sources Red, Green and Blue sequentially for every divided driving area. Furthermore, the method includes providing a time interval between driving sections of a previous light source and a next light source.

Claims (7)

1. A method of color image display for a field sequential liquid crystal display device including an image signal processor, comprising:

dividing a liquid crystal panel into n numbers of driving areas, wherein n is a natural number;

turning on each of light sources Red, Green, Blue and X sequentially for every divided driving area, wherein the light source X is a combination of the light sources Red, Green and Blue; and

providing a time interval between driving sections of a previous light source and a next light source in each of a second divided driving area to an nth divided driving area, and each of the driving sections consisting of a scanning time of a thin film transistor, a response time of a liquid crystal and a lighting time of a back light, wherein the time interval in the second divided driving area is a same as the time interval in the nth divided driving area.

2. The method according to claim 1 , wherein if an Optically Compensated Birefringence (OCB) mode is selected for the liquid crystal, the time interval is in the range of about 0.5 msec˜1 msec.

3. The method according to claim 1 , wherein the number n of divided driving areas is dependent on a degree of a resolution of a liquid crystal display device and the response time of the liquid crystal.

4. The method according to claim 1 , wherein the lighting time of the back light is dependent on a degree of resolution of the liquid crystal display device and the response time of the liquid crystal.

Assignments (2)
CHANGE OF NAME Recorded Oct 17, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021763/0177 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 3, 2006
From: LIM, MOO JONG; HONG, HYUNG-KI
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 017642/0284 →