Device and method for driving a liquid crystal panel

Details Device and method for driving a liquid crystal panel Device and method for driving a liquid crystal panel

1991-12-09

1993-03-09

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

G09G 128

Patent

active

051929457

ABSTRACT:
A circuit for driving a liquid crystal panel using a plurality of source drivers includes a separate line memory circuit for transmitting color signals to the even and odd line source drivers, respectively. Each line memory circuit includes digital color signal train forming circuits arranged according to a color order of the corresponding source lines upon receipt of analog color signals of the three colors in parallel, memories for successively storing the digital color signal train, circuits for alternately reading a first and second half memory area and circuits for latching and converting the read digital color signals in a prescribed order, to analog color signals of the three signals in parallel and transmitting the analog color signals to the corresponding source drivers.

REFERENCES:
patent: 4745485 (1988-05-01), Iwasaki
patent: 4791415 (1988-12-01), Takahashi
patent: 4908710 (1990-03-01), Wakai et al.
patent: 4980775 (1990-12-01), Brody

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