Color filter and liquid crystal display device

Details Color filter and liquid crystal display device Color filter and liquid crystal display device

2008-08-29

2011-11-01

Vu, Phu (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S107000, C349S108000

Reexamination Certificate

active

08049844

ABSTRACT:
A color filter includes red, green and blue filter segments and is adapted to be used in a liquid crystal display device using, as a light source, a white LED having specified spectral properties. The red filter segment has a 50% transmittance wavelength within a range of 595 to 610 nm and a transmittance of 85% or more at a wavelength of 630 nm. The blue filter segment has a maximum transmittance wavelength of 455 nm or less and a transmittance of 55% or more at a wavelength of 450 nm. A thickness of each of the red, green and blue filter segments is 3.0 μm or less. A liquid crystal display device including this color filter and the white LED is also disclosed.

REFERENCES:
patent: 2004/0105265 (2004-06-01), Takizawa
patent: 2006/0183037 (2006-08-01), Takizawa
patent: 2002-229054 (2002-08-01), None
patent: 2004-085592 (2004-03-01), None
patent: 2004-145275 (2004-05-01), None
patent: 2004-177592 (2004-06-01), None
patent: 2006-47975 (2006-02-01), None
patent: 200307891 (2003-12-01), None
Machine translation of Japanese publication 2006047975 Feb. 16, 2006.
International Search Report for PCT/JP2007/053872, mailed May 29, 2007.
Office Action and English translation mailed Jun. 29, 2010 in JP 2008-503803.
Office Action and English translation in Taiwanese patent application 096106955 mailed Jun. 21, 2011.

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