Display control apparatus for dispersionless display

Details Display control apparatus for dispersionless display Display control apparatus for dispersionless display

Filed on

1992-09-16

Date issued

1994-12-20

Examiner

Brier, Jeffery

Patent Class

Computer graphics processing and selective visual display system

SubClass

Plural physical display element control system

SubSubClass

Display elements arranged in matrix

Other Related Categories

345 98, G09G 336

Type

Patent

Status

active

Patent number

053749413

Description

ABSTRACT:
A display control apparatus includes a frame memory for storing first frame video data on CRT image signals at least for one frame portion, a storage device for comparing the first frame video data with displaying pixel data at the same image position in video data for a subsequent frame to identify changes in the display contents on a per pixel basis and for storing address information of the changed pixels on a per pixel or per scanning line basis. Also included is a transfer device for reading displaying pixel data from the frame memory on a per pixel or per scanning line basis, based on the address information, and for transferring the data to a display driving unit of the liquid crystal display device. With this display control apparatus, a highly precise flickerless image display is implemented without any dispersion.

REFERENCES:
patent: 3553362 (1971-01-01), Mounts
patent: 4655561 (1987-04-01), Kanbe et al.

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