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:
Apr. 28, 2009
Filed:
Apr. 05, 2007
Takeshi Harayama, Mobara, JP;
Shiro Ueda, Suzhou, CN;
Fumitoshi Matsuda, Yasu, JP;
Nobuyuki Mitsuhashi, Chiba, JP;
Takeshi Harayama, Mobara, JP;
Shiro Ueda, Suzhou, CN;
Fumitoshi Matsuda, Yasu, JP;
Nobuyuki Mitsuhashi, Chiba, JP;
Hitachi Displays, Ltd., Mobara-shi, JP;
Abstract
A liquid-crystal display device includes a liquid-crystal display panel having a liquid-crystal layer sandwiched between a pair of substrates, and a backlight unit provided on a surface opposite to a display surface of the liquid-crystal display panel. The backlight unit has an accommodator capable of having at least one optical sheet arranged therein and having a sidewall having a projection at a periphery thereof. The optical sheet has a hole into which the projection is inserted, the hole formed in the optical sheet having a form that is the same as the top plan form of the tip of the projection, the hole being formed in the optical sheet so that a certain rotation angle is established between the form of the hole and a top plan form of the tip of the projection in a state in which the optical sheet is accommodated in the accommodator.