Gamma reference voltage generator

Details Gamma reference voltage generator Gamma reference voltage generator

2007-06-19

2007-06-19

Awad, Amr A. (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S690000, C348S674000, C358S519000

Reexamination Certificate

active

10746333

ABSTRACT:
A programmable buffer integrated circuit which can be programmed to output a set of gamma correction reference voltages to be used in LCD displays. Once programmed, the buffers will continuously output the programmed value. The device incorporates a programming interface to allow the programming of the buffer outputs to the desired values during manufacturing and test of the panel. Multiple sets of values can be programmed to provide different gamma correction curves for different user or application requirements.

REFERENCES:
patent: 6046719 (2000-04-01), Dingwall
patent: 6373478 (2002-04-01), Steffensmeier
patent: 6593934 (2003-07-01), Liaw et al.
patent: 6680733 (2004-01-01), Woo et al.
patent: 6756961 (2004-06-01), Hector et al.
patent: 7038721 (2006-05-01), Stessen et al.
patent: 2002/0063666 (2002-05-01), Kang et al.

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