Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1997-09-15
2000-05-09
Mengistu, Amare
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345100, 345204, G09G 336
Patent
active
060610468
ABSTRACT:
An LCD panel driving circuit, includes a timing control circuit determining an output timing of a digital video signal and vertical/horizontal synchronizing signals and outputting the digital video signal and a row line driving signal, a D/A converter circuit coupled to the timing control circuit and receiving the digital video signal from the timing control circuit and outputting analog video signals to be sequentially applied to groups of column driver lines, a gamma correction circuit coupled to the D/A converter circuit and applying a correction signal to the D/A converter circuit, a sequence control circuit receiving the horizontal synchronizing signal and sequentially outputting a column driver enable signal, a column driver coupled to the sequence control circuit and the D/A converter circuit for sequentially receiving the analog video signals from the D/A converter circuit and subsequently outputting the analog video signals to different groups of column driver lines cell of a LCD panel, and a row driver receiving the row line driving signal from the timing control circuit and sequentially outputting the row line driving signal to each row line of the LCD panel.
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Texas Instruments Technical Manual for TMS 574B1, pp. 1-17, Apr. 1995.
LG Semicon Co. Ltd.
Mengistu Amare
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