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:
Dec. 25, 2012
Filed:
Jul. 16, 2008
Yuhsaku Ajichi, Osaka, JP;
Takeshi Masuda, Osaka, JP;
Yuhsaku Ajichi, Osaka, JP;
Takeshi Masuda, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A backlight (illumination device)is disclosed including: light sources (); light guide plates () for causing surface emission of light from the light sources (); and a diffusing plate () for diffusing light from the light guide plates (), the diffusing plate () facing a light-emitting surface () of each of the light guide plates () at a predetermined distance. The illumination device further includes at least one maintaining section between the light-emitting surface () of the light guide plate () and the diffusing plate (), the maintaining section () maintaining the predetermined distance. The maintaining section () is provided on either of first and second end sections of the light-emitting surface () of a light guide plate (), the first end section being closer to a corresponding light source (), the second end section being farther from the corresponding light source ().