Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1997-03-14
2000-09-05
Mengistu, Amare
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 92, 349108, 349109, G09G 336
Patent
active
061150150
ABSTRACT:
Blue bright spots occurring when using overhead projectors with liquid crystal modules (LCDs) are prevented by providing intercepting filter in the liquid crystal module for modifying light reaching the thin film transistors of the LCDs in the portion of the spectrum absorbed by and passing through the protection layer formed on the TFT. In the case where protection layer on the TFT is formed of an amorphous silicon layer, the intercepting filter has the characteristic of modifying the light having wavelengths of 380 nm to 500 nm. The intercepting filter being a color filter of other than blue is formed just above the TFT at least part of which is related to a cell of blue.
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Fujita Takashi
Odahara Shuichi
International Business Machines - Corporation
Mengistu Amare
Said Mansour M.
Sbrollini J. P.
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