The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2009
Filed:
Jun. 26, 2007
Tsuyoshi Maeda, Ryuo, JP;
Eiji Okamoto, Matsumoto, JP;
Takumi Seki, Misato, JP;
Osamu Okumura, Chino, JP;
Tsuyoshi Maeda, Ryuo, JP;
Eiji Okamoto, Matsumoto, JP;
Takumi Seki, Misato, JP;
Osamu Okumura, Chino, JP;
Seiko Epson Corporation, , JP;
Abstract
When a backlightis turned on in a dark environment, white light emerging from the surface of a light guide platepasses through a polarizerand a retardation filmenters the interior of the liquid crystal cell, passes through openings of reflective electrodesand is introduced into a liquid crystal layerThe light introduced into the liquid crystal layerpasses through a color filteremerges from the liquid crystal cell, and passes through the retardation filmand the polarizertowards the exterior. In a lighted environment, the light incident on the polarizerpasses through the liquid crystal layeris reflected by the reflective electrodeand passes through the polarizeragain and is emitted towards the exterior.