Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1997-04-03
2000-08-22
Nguyen, Chanh
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345100, G09G 334
Patent
active
061079790
ABSTRACT:
A spatial light modulator (10) with a programmable format pixel array (14). The pixel array (14) has a programmable row address circuit (30), and a partitionable programmable column data loading circuit (32) which permits the array (14) to be operated in multiple formats compatible with NTSC, PAL, SECAM and other broadcasting standards. The pixel array (14) is of the DMD type. The array can be configured as 864.times.576 pixel array, a 768.times.576 pixel array, an 864.times.480 pixel array, or a 640.times.480 pixel array. This format is controlled by hardware (30,32) designed into the DMD chip. A partitionable shift register (32) has a MUXED input to provide testability, permitting some or all of the data input lines (D0-D53) to be utilized, and also allowing pixel data to be loaded back into the shift register (32) for functional verification. A programmable row address circuit (30) automatically addresses a subset of pixel rows as a function of a single input.
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An Quang Dieu
Chiu Edison H.
Kornher Kevin
Brady III Wade James
Brill Charles A.
Nguyen Chanh
Telecky Jr. Frederick J.
Texas Instruments Incorporated
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