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:
Jan. 17, 2012
Filed:
Oct. 31, 2008
Masato Taya, Chikusei, JP;
Tokutarou Komatsu, Abiko, JP;
Yasushi Sugimoto, Tsukuba, JP;
Tadashi Okuda, Chikusei, JP;
Teruo Teshima, Nasu-machi, JP;
Masato Taya, Chikusei, JP;
Tokutarou Komatsu, Abiko, JP;
Yasushi Sugimoto, Tsukuba, JP;
Tadashi Okuda, Chikusei, JP;
Teruo Teshima, Nasu-machi, JP;
Hitachi Chemical Co., Ltd., Tokyo, JP;
Abstract
A light guide plate includes: a plate surrounded by two main surfaces and a plurality of end surfaces connecting the main surfaces, one of the end surfaces designated as an entrance surface, one of the main surfaces designated as a reflection surface; a first reflection element provided in a first region of the reflection surface separated from the entrance surface, and configured to reflect a light incident from the entrance surface in a first angle with respect to the reflection surface; and a second reflection element provided in a second region of the reflection surface between the entrance surface and the first region, and configured to reflect the light in a second angle different from the first angle with respect to the reflection surface.