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:
Oct. 15, 2013
Filed:
Apr. 15, 2011
Kentaro Kamada, Osaka, JP;
Kentaro Kamada, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A technology for restricting or suppressing a lift of a reflection sheet in a direct backlight device is provided. The direct backlight device according to the present invention includes an LED board, LEDs, lenses, legsand, a reflection sheet. The LEDsare arranged on a surface of the LED board. The lensescover the respective LEDsfrom the light exit side and diffuse light from the LEDs. The legsandare arranged on the surface of the LED boardand support the lenses. The reflection sheethas through holes. The LEDsand the legsandare passed through the respective through holesof the reflection sheet. The reflection sheetincludes projectionsandprojecting inward from an edge of the corresponding through hole. The three projectionsandare held between the three legsand