Liquid crystal color display

Details Liquid crystal color display Liquid crystal color display

2002-07-04

2009-12-22

Nguyen, Dung T. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S061000, C349S106000

Reexamination Certificate

active

07636141

ABSTRACT:
A liquid crystal color display with a color filter having plural pixels of 3 colors of red, green, and blue, plural light shutters which control a transmitting light quantity of each pixel by opening and closing a liquid crystal, and a light source; when a wavelength of the maximum green pixel transmittance of the above color filter is λ, an average of normalized emitting spectrum of light source (brightness when maximum value is 1), in range of λ±3 nm, is 0.1 or higher; and a wavelength of a coinciding point, of transmittance of blue pixel whose wavelength is longer than the peak wavelength of the transmitting wavelength band of blue pixel of a color filter, and transmittance of green pixel whose wavelength is shorter than the peak wavelength of the transmitting wavelength band of green pixel of a color filter, is 500 nm or shorter.

REFERENCES:
patent: 4870484 (1989-09-01), Sonehara
patent: 5-232579 (1993-09-01), None
patent: 07-031028 (1995-10-01), None
patent: 07-031032 (1995-10-01), None
patent: 07-253577 (1995-10-01), None
patent: 07-261167 (1995-10-01), None
Tohru Tamura, “Influence of Color Gamut on Skin Color Quality”, Journal of ITE'99, 1999 ITE Annual Convention, 7-8, pp. 109-110 (1999).

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