Method and apparatus for preventing residual image in liquid...

Details Method and apparatus for preventing residual image in liquid... Method and apparatus for preventing residual image in liquid...

2007-01-02

2007-01-02

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C345S087000, C345S010000, C345S102000, C345S204000, C345S209000, C345S214000

Reexamination Certificate

active

10290519

ABSTRACT:
An adaptive method and apparatus prevents the formation of residual images in a liquid crystal display caused by a discharge of liquid crystal cells upon power-off. When an off-time of a ramp voltage is sensed, a white data signal may be generated. The white data signal is then displayed on a liquid crystal display panel until a power supply for the liquid crystal module is turned off.

REFERENCES:
patent: 4327309 (1982-04-01), Wallot
patent: 6476590 (2002-11-01), Chou
patent: 6621489 (2003-09-01), Yanagisawa et al.
patent: 6961034 (2005-11-01), Kusanagi
patent: 2003/0080932 (2003-05-01), Konno et al.
patent: 2003/0218587 (2003-11-01), Ikeda
patent: 222134 (1998-08-01), None
patent: 249320 (2001-09-01), None

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