Flat panel display interface for a high resolution computer grap

Details Flat panel display interface for a high resolution computer grap Flat panel display interface for a high resolution computer grap

1995-05-15

1997-03-04

Saras, Steven

Computer graphics processing and selective visual display system

Plural display systems

Diverse systems

345 1, G09G 500

Patent

active

056084188

ABSTRACT:
A computer graphics subsystem is disclosed that renders images on either a high resolution CRT display or a high resolution flat panel display without requiring modifications to existing application programs. The graphics subsystem includes a ramdac circuit that generates a set of video sync signals for a CRT display. The ramdac circuit has an analog video port and a digital pixel output port. The ramdac circuit performs color look-up table and digital to analog conversion functions to drive a high resolution CRT display through the analog video output port. The ramdac circuit uses the digital pixel port to enable the computer graphics subsystem to drive a flat panel display. A color buffer circuit converts the video sync signals into a set of flat panel sync signals for a flat panel display.

REFERENCES:
patent: 4808989 (1989-02-01), Tabata
patent: 5111190 (1992-05-01), Zenda
patent: 5138305 (1992-08-01), Tomiyasu
patent: 5159683 (1992-10-01), Lvovsky

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