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. 19, 2011
Filed:
Dec. 20, 2005
Yoshihiro Murakami, Tsu, JP;
Takeshi Ogura, Matsusaka, JP;
Kazuki Nakamichi, Suzuka, JP;
Takafumi Hara, Kyotanabe, JP;
Takuya Ohnishi, Matsusaka, JP;
Yoshihiro Murakami, Tsu, JP;
Takeshi Ogura, Matsusaka, JP;
Kazuki Nakamichi, Suzuka, JP;
Takafumi Hara, Kyotanabe, JP;
Takuya Ohnishi, Matsusaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A backlight unit capable of being designed in consideration of both thermal expansion of optical sheets and positioning accuracy of the optical sheets on a backlight chassis. The backlight unit is arranged behind a display panel and includes a backlight chassis arranged to house a lamp, which includes a support surface arranged to support optical sheets, and a frame arranged to hold the optical sheets with the support surface of the backlight chassis, the optical sheets being interposed between the frame and the support surface, wherein the backlight chassis has, on its support surface, a positioning piece arranged to position the optical sheets at a predetermined position with respect to the support surface, and a position of the positioning piece corresponds to an approximate center of a longer edge of the optical sheets.