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

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

2006-12-26

2006-12-26

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S087000, C345S088000, C345S089000, C345S098000, C345S100000, C345S530000, C345S533000, C345S559000, C345S565000, C345S571000

Reexamination Certificate

active

07154490

ABSTRACT:
A display driver, electro-optical device and electronic appliance are provided that make unnecessary processing that calculates positions in a RAM where display data is to be written according to a mounting state thereof. A display driver includes a mounting state setting register in which mounting state setting data showing a mounting state of the display driver is set, a RAM that stores display data, a row scanning flag generation circuit that generates a row scanning flag showing a scanning direction of row addresses based on the mounting state setting data, a row address decoder that decodes row addresses in accordance with the scanning direction designated by the row scanning flag, a column address decoder that decodes column addresses, a display address decoder that decodes display addresses, and a driving circuit that drives a display section based on display data read from the RAM in accordance with a decoding result of the display address decoder.

REFERENCES:
patent: 6674423 (2004-01-01), Isozaki
patent: 2002/0135604 (2002-09-01), Yoneyama
patent: 2001-142426 (2001-05-01), None
patent: 2001-350620 (2001-12-01), None
patent: 2002-328665 (2002-11-01), None

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