Display driving device

Details Display driving device Display driving device

1995-04-25

1997-12-30

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345190, 345200, G09G 536

Patent

active

057036160

ABSTRACT:
A display data memory which is provided in a segment driver for driving a liquid crystal display panel comprises a plurality of memories. Since the common Y address is provided to all the memories, one predetermined memory is selected when a predetermined X address is decoded. At the time of writing data, a predetermined area in one memory is addressed according to X and Y addresses, and then data is written in the predetermined area. In case data is read out to be displayed, the memories are prohibited from being selected according to outputs from decoders. Data addressed by the common Y address are read out from the memories. Therefore, display data of one line are output as segment signals at a time.

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