Display driver and electro-optical device

Details Display driver and electro-optical device Display driver and electro-optical device

2007-04-17

2007-04-17

Awad, Amr A. (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Intensity or color driving control

C345S100000, C345S698000

Reexamination Certificate

active

10754554

ABSTRACT:
A comb-tooth drive is realized by a display driver which drives data lines. The display driver includes a gray-scale bus to which gray-scale data is supplied corresponding to an arrangement order of the data lines, first and second clock lines to which a first or second shift clock is supplied, a first and second shift registers which shift signals in first and second shift directions based on first and second shift clocks, first and second data latches which latch the gray-scale data based on the shift output of the first and second shift registers, a data line driver circuit which drives the data lines based on latch data of each data latch, and a clock switch circuit which selectively outputs the first and second shift clocks based on a given mode setting signal.

REFERENCES:
patent: 6621481 (2003-09-01), Kanbara
patent: 2003/0030614 (2003-02-01), Tajima et al.
patent: A 3-285479 (1991-12-01), None
patent: A 2001-51656 (2001-02-01), None
patent: A 2002-156654 (2002-05-01), None
U.S. Appl. No. 10/760,702, filed Jan. 21, 2004, Toriumi et al.

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