Display driver apparatus, and electro-optical device and...

Details Display driver apparatus, and electro-optical device and... Display driver apparatus, and electro-optical device and...

2006-08-01

2006-08-01

Awad, Amr A. (Department: 2677)

Computer graphics processing and selective visual display system

Display driving control circuitry

Controlling the condition of display elements

C345S089000, C345S099000

Reexamination Certificate

active

07084866

ABSTRACT:
A display driver capable of operating in any one of multiple gradient display modes drives a liquid crystal panel in which the first L common electrodes are simultaneously selected in a first selection period and successive groups of L common electrodes are simultaneously selected in successive selection periods. 8-bit display data for each segment electrode are simultaneously read from a display data RAM and latched. First and second sub-decoders decode divided upper and lower four bits of the 8-bit display data, respectively. In a first mode, the data is for a four gradient display for each of four pixels on each segment electrode. In a second mode, the data is for a two gradient display for each of eight pixels on each segment electrode.

REFERENCES:
patent: 5576737 (1996-11-01), Isozaki
patent: 5953002 (1999-09-01), Hirai et al.
patent: 6040826 (2000-03-01), Furukawa
patent: 6538629 (2003-03-01), Ito
patent: 2002/0011994 (2002-01-01), Imamura
patent: 11149278 (1999-06-01), None
patent: WO97/43750 (1997-11-01), None
patent: WO 00/02185 (2000-01-01), None

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