Dye combinations for image enhancement filters for color...

Details Dye combinations for image enhancement filters for color... Dye combinations for image enhancement filters for color...

2006-01-24

2006-01-24

Yamnitzky, Marie (Department: 1774)

Compositions

Light transmission modifying compositions

C313S112000, C313S485000, C313S635000, C359S885000, C428S411100

Reexamination Certificate

active

06989112

ABSTRACT:
A bandpass filter containing specific red dyes alone or in combination with other dyes selectively transmits predetermined primary color wavelengths as well as selectively absorbs wavelengths other than the predetermined primary color wavelength. The filter is particularly useful for enhancing the contrast of color plasma displays by absorbing visible light emitted at 590 nm from the display.

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George Ban et al., “Enhancing the Brightness Capability of Color-TV Receivers Through the Use of Spectrally Selective Tinted Glass”, Journal of Electrochemical Society, Electrochemical Society, vol. 4, No. 116, Apr. 1, 1969, pp. 531-534. XP 002078007.

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