Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

2006-09-26

2006-09-26

Tung, Kee M. (Department: 2628)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S084000, C345S077000, C345S690000

Reexamination Certificate

active

07113159

ABSTRACT:
A liquid crystal display device including a liquid crystal panel being capable of gradation display is provided with a LUT and a drive signal generation section for adjusting gradation curve's distortion with respect to a viewing angle, which indicates a relation between a gradation and a luminance ratio on a display screen of the liquid crystal panel. With this arrangement, it is possible to freely switch on the display screen of the liquid crystal panel between a wide viewing angle display and a narrow viewing angle display. Therefore, it is possible to provide a liquid crystal display device which adjusts the gradation curve's distortion with respect to the viewing angle on the display screen to obtain a high contrast and an excellent gradation curve in a wide range of viewing angle, thereby improving a display quality level of a display screen; and which realizes a display screen with a narrow viewing angle, thereby allowing information not desired to be seen by other people to be securely displayed thereon.

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patent: 2002/0003598 (2002-01-01), Steffensmeier et al.
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patent: 2001-147673 (2001-05-01), None
Dictionary of Digital Media, http://www.hansenmedia.com/dict—r.asp?letter-g&ID-1436, 1994-2000, Hansen Media Corp.
Korean Office Action mailed Apr. 28, 2005 (w/English translation thereof).

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