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:
Jul. 17, 2007
Filed:
Feb. 03, 2006
Ikuo Hiyama, Hitachi, JP;
Makoto Tsumura, Hitachi, JP;
Masaya Adachi, Hitachi, JP;
Katsumi Kondo, Mito, JP;
Jun-ichi Hirakata, Chiba, JP;
Yuji Mori, Urizura-machi, JP;
Ikuo Hiyama, Hitachi, JP;
Makoto Tsumura, Hitachi, JP;
Masaya Adachi, Hitachi, JP;
Katsumi Kondo, Mito, JP;
Jun-ichi Hirakata, Chiba, JP;
Yuji Mori, Urizura-machi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A liquid crystal display device includes an illumination device, a light control element arranged at a projected light side of the illumination device, a reflective polarizer arranged at an upper portion of the light control element so that the transmission axis of polarized light is adjusted, a liquid crystal display element for controlling polarization of projected light projected from the reflective polarizer, and a screen arranged at an upper portion of the liquid crystal display element. The light control element includes an isotropic medium without birefringence.