Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1997-06-03
2000-05-16
Liang, Regina
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
345 84, 345147, G09G 510
Patent
active
060643668
ABSTRACT:
A spatial light modulator in the form of a deformable mirror device (110) receives from a frame store (116) data which has been formatted by a data formatter (114) subsequent to gamma correction in a ROM look-up table (112). The DMD (110) displays different light levels by being ON for selected periods of a series of durations 4, 8, 16 . . . 1024 varying in proportion to a basic period multiplied by powers of two. The shortest duration 4 for which the DMD can be turned on is a multiple of the basic period, and the series includes additional durations 5, 6 and 7 in the series between the shortest displayable duration 4 and the next power of two 8. Durations 1, 2 and 3 of less than the shortest displayable duration can be displayed by adjusting the turn-on time of a proportion of the adjacent mirrors. The longest duration for which the mirror can be turned on can be employed twice.
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Gillespie John
Millward John David
Digital Projection Limited
Liang Regina
Russell, Esq. Dean W.
Turton, Esq. Michael J.
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