RAM incorporated display driver for reducing load on display...

Details RAM incorporated display driver for reducing load on display... RAM incorporated display driver for reducing load on display...

2005-03-22

2005-03-22

Nguyen, Kimbinh T. (Department: 2671)

Computer graphics processing and selective visual display system

Computer graphics display memory system

Graphic display memory controller

C345S571000, C345S684000, C345S215000, C345S533000

Reexamination Certificate

active

06870541

ABSTRACT:
This invention provides an image display apparatus for displaying data stored in a random access memory (RAM) such as LCD, more specifically a display driver achieving easy and flexible display control such as scroll in a display screen without increasing load on CPU and an image display apparatus including the same. This display driver comprises an RAM for storing the display data to be displayed on the display screen, a latch shift register for receiving the display data read out from the RAM and if the display screen is intended to be scrolled in a horizontal direction, shifting the read out display data depending on the scrolling direction and if the display screen is intended to be scrolled in a vertical direction, holding the read out display data and an access control circuit for reading out the display data from the RAM and if the display screen is intended to be scrolled in a horizontal direction, writing back the display data shifted by the latch shift register into an original position in the RAM and if the display screen is intended to be scrolled in a vertical direction, writing back the display data held by the latch shift register from the original position of the RAM to a position shifted by the amount of the scroll.

REFERENCES:
patent: 4769637 (1988-09-01), Forrester et al.
patent: 5250928 (1993-10-01), Kuriki
patent: 5495267 (1996-02-01), Fujitaka
patent: 5909206 (1999-06-01), Yokota et al.
patent: 9-16118 (1997-01-01), None
patent: 11-212540 (1999-08-01), None

Affiliated with

Also associated with

Rating

RAM incorporated display driver for reducing load on display... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with RAM incorporated display driver for reducing load on display..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and RAM incorporated display driver for reducing load on display... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3376305