Dual image computer display controller

Computer graphics processing and selective visual display system – Plural display systems – Diverse systems

Patent

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Details

345 1, 345507, G09G 500

Patent

active

059779330

ABSTRACT:
A display control system for a portable computer drives, from a single frame buffer, both a built-in flat panel (LCD type) display as well as a separate external CRT display or an NTSC/PAL television monitor. Either identical or different images may be displayed simultaneously on the CRT display or television and on the flat panel display. Independent clocking is provided to each display to enable this simultaneous display of different images as well as simultaneously display of identical images. The display control system is suitable for use with a wide variety of CRT displays and flat panel displays by means of internal programmable controls.

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