Liquid crystal display adaptive to viewing angle

Details Liquid crystal display adaptive to viewing angle Liquid crystal display adaptive to viewing angle

2006-10-17

2006-10-17

Lao, Lun-yi (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S207000, C345S690000

Reexamination Certificate

active

07123223

ABSTRACT:
Disclosed is an LCD capable of adaptively selecting a gamma curve based on a viewing angle. The LCD includes: a viewing angle detector for detecting the viewing angle of an LCD panel to generate information about the viewing angle, and a gamma curve determiner for selecting a gamma curve corresponding to the information of the viewing angle and controlling the gray level with a gamma voltage value defined by the selected gamma curve. The viewing angle detector has a driving voltage generator and a voltage divider. The driving voltage generator outputs a gate-on/off voltage and an analog driving voltage based on an externally input power, and the voltage divider drops the level of the gate-on voltage to generate a first voltage. A viewing angle generator outputs information about the viewing angle based on the analog driving voltage and the first voltage.

REFERENCES:
patent: 4319237 (1982-03-01), Matsuo et al.
patent: 5250937 (1993-10-01), Kikuo et al.
patent: 6323847 (2001-11-01), Kaneko et al.
patent: 11-338575 (1999-12-01), None
patent: 1997-0017140 (1997-04-01), None
patent: 1999-0068951 (1999-09-01), None

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