Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-08-07
2007-08-07
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S204000
Reexamination Certificate
active
10747289
ABSTRACT:
A circuit for and a method of driving the liquid crystal panel of a liquid crystal projector make it possible to manufacture a projector having a plurality of light sources inexpensively. The circuit for driving the liquid crystal panel of a liquid crystal projector having a plurality of lamps as light sources has a CPU circuit for managing the overall system and data of the liquid crystal projector, a video signal processing circuit for converting a video signal input from an external source into a digital signal, and a panel correcting circuit for correcting the digital video signal generated by the video signal processing circuit depending on characteristics of a liquid crystal panel of the liquid crystal projector so as to match the liquid crystal panel. The CPU circuit outputs corrective data to the panel correcting circuit depending on how the lamps are energized, and the panel correcting circuit corrects the video signal using the corrective data.
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Hjerpe Richard
Lesperance Jean
NEC Viewtechnology Ltd.
Young & Thompson
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