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:
Jun. 03, 2008
Filed:
Aug. 19, 2003
Masaki Shimizu, Tochigi, JP;
Masaki Shimizu, Tochigi, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
Luminance irregularities caused by the weight of the optical members in a backlight apparatus are reduced. A lighting apparatus comprises optical membersand, a casing in which the optical membersandand a lampare disposed, a first memberformed in optical membersand, and a second memberformed in the casing for attaching the optical membersandto the casing by cooperating with the first member. The first and second membersandare provided in positions such that no upward stress is applied to the optical members due to their own weights at the bottom in a vertical direction in the plane of the display screen, both in a basic position and a first stop position of the lighting apparatus, the latter position being reached by rotation of the apparatus from the basic position in the plane of the display screen.