Liquid crystal display driving device and liquid crystal inspect

Details Liquid crystal display driving device and liquid crystal inspect Liquid crystal display driving device and liquid crystal inspect

1997-08-22

1998-05-26

Liang, Regina

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 98, G09G 336

Patent

active

057573468

ABSTRACT:
A technique for inspecting a liquid-crystal display module which includes a liquid-crystal panel and a liquid-crystal display driving device, wherein the liquid-crystal display driving device is provided with a selecting section for selectively switching between (i) outputting of various data items stored in a memory section to an inspection device and (ii) outputting of the stored data to a driving section to drive a liquid-crystal panel, on the basis of execution instruction data from the inspection device. The inspection device selectively writes and reads character data into and from a DDRAM, a CGROM, and a CGRAM in the memory section of the liquid-crystal display driving device one after another and inspects the display in sequence.

REFERENCES:
patent: 5293178 (1994-03-01), Kobayashi
patent: 5488385 (1996-01-01), Singhal
patent: 5515068 (1996-05-01), Uragami

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