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:
Mar. 06, 2012
Filed:
Aug. 14, 2006
Tadahiro Ohmi, Miyagi, JP;
Yasuyuki Shirai, Miyagi, JP;
Kiwamu Takehisa, Miyagi, JP;
Mitsuo Matsumoto, Tokyo, JP;
Tokuo Ikari, Tokyo, JP;
Toshiaki Sato, Ibaraki, JP;
Ikuo Onishi, Ibaraki, JP;
Etsuo Nakazato, Ibaraki, JP;
Yuichiro Yamada, Aichi, JP;
Tokihiko Shinomiya, Nara, JP;
Takashi Ishizumi, Nara, JP;
Yuhsaku Ajichi, Kyoto, JP;
Tadahiro Ohmi, Miyagi, JP;
Yasuyuki Shirai, Miyagi, JP;
Kiwamu Takehisa, Miyagi, JP;
Mitsuo Matsumoto, Tokyo, JP;
Tokuo Ikari, Tokyo, JP;
Toshiaki Sato, Ibaraki, JP;
Ikuo Onishi, Ibaraki, JP;
Etsuo Nakazato, Ibaraki, JP;
Yuichiro Yamada, Aichi, JP;
Tokihiko Shinomiya, Nara, JP;
Takashi Ishizumi, Nara, JP;
Yuhsaku Ajichi, Kyoto, JP;
Abstract
A large liquid crystal display () comprises a light guide plate () arranged on the back side of a liquid crystal panel (). The front surface of the light guide plate () is flat, while the back surface thereof is concave. The upper and lower end faces of the light guide plate () respectively facing hot cathode fluorescent lamps () have a convex shape projecting toward the respective lamps. White light from the fluorescent lamps is incident on the upper and lower end faces of the light guide plate directly or by being reflected by reflectors (), and propagates within the light guide plate while being reflected by the front and back surfaces of the light guide plate. At the front surface of the light guide plate, a part of the white light is directed toward the back side of the liquid crystal panel () by a light guide portion ().