Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-12-13
2005-12-13
Nguyen, Dung T. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S114000
Reexamination Certificate
active
06975373
ABSTRACT:
An object of the invention is to provide a color filter and a liquid crystal display device using it, which can acquire uniform color purity within a pixel. A color filter for coloring the first light ray L1having a unidirectional optical path and the second light ray L2having a bidirectional optical path for each pixel. This filter comprises: a step-forming layer of optically transmissive material, which can be supported by a base layer20, and which is patterned for a pixel to form at least one recess-shaped portion having a bottom face3bof a predetermined shape corresponding to an area wherein the first light ray L1is caused to be transmitted and a wall face3wof a predetermined height; and a coloring layer1C deposited on the step-forming layer30and the recess-shaped portion for coloring the first and second light rays.
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patent: 6322936 (2001-11-01), Nishikawa et al.
patent: 6476889 (2002-11-01), Urabe et al.
patent: 2000-330106 (2000-11-01), None
“Development of Advanced TFT with Good Legibility under Any Intensity of Ambient Light” by M. Kubo et al., IDW 99, Proceedings of the Sixth International Display Workshops, AMD3-4, pp. 183-186, Dec. 1, 1999, sponsored by ITE and SID.
Koninklijke Philips Electronics , N.V.
Nguyen Dung T.
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