Color filterless display device, optical element, and...

Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only

Reexamination Certificate

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C349S057000

Reexamination Certificate

active

10912756

ABSTRACT:
A color filterless display device performing color display for expressing one pixel by three RGB sub-pixels includes: a light source; a diffraction grating for separating a light irradiated from this light source into lights of a plurality of wavelength regions; a cylindrical lens array for receiving the separated light and condensing the light while corresponding to each of the sub-pixels; and a liquid crystal cell including a structure portion for correcting an angle of the condensed light for all sub-pixels, wherein, in the structure portion of this liquid crystal cell, a side onto which a light from the cylindrical lens array is made incident is made of a high refractive index layer, an emitting side from which the light is emitted is made of a low refractive index layer, and a Fresnel-type microprism structure is formed by the high refractive index layer and the low refractive index layer.

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patent: 09-311329 (1997-02-01), None
patent: 2000-241812 (2000-08-01), None
Japanese Publication No. 2000-241812 published on Feb. 12, 1997.
Japanese Publication No. 2000-241812 published on Aug. 9, 2000.

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