Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1997-11-06
2000-06-20
Breene, John E.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345196, G06F 300
Patent
active
060783052
ABSTRACT:
A graphic image display device comprises a display processing section and a line buffer section. The display processing section is provided with a graphics ROM for storing original graphics data of a plurality of graphic images. The display processing section reads original graphics data of a graphic image from the graphics ROM according to a CPU I/F signal supplied from a CPU as graphics processing control information, processes the original graphics data according to the CPU I/F signal, and outputs display graphics data. The line buffer section temporarily stores the display graphics data to be displayed on a line of a display screen. The display processing section includes a mesh pattern generator means and a line buffer write control means. The mesh pattern generator means generates a mesh signal including masking information of a mesh pattern to be given to the display graphics data according to a mesh effect ON/OFF signal. The line buffer write control means controls ON/OFF of writing on the storing of the display graphics data in the line buffer section according to the mesh signal, thereby mesh effect is given to the display graphics data and mesh effect display is realized. According to the device, overlapping display of mesh effect graphics is made possible and transition of display graphics can be executed smoothly, without preparation of huge amount of graphics data or large capacity of the graphics ROM.
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Breene John E.
NEC Corporation
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