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:
Aug. 02, 1994
Filed:
May. 06, 1992
Applicant:
Inventor:
Masao Obata, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G02F / ;
U.S. Cl.
CPC ...
359 49 ; 40546 ; 362 27 ; 359 83 ;
Abstract
With the aim of reducing the thickness of a liquid crystal lighting apparatus, side ends, different from light incident ends, of an optical conductor plate are cut out to form steps so that the optical conductor plate may be thinner at the side ends than at the light incident ends. Alternatively, portions, contiguous to the light incident ends, of a reflector sheet and a diffusion sheet are cut out to form thickness reduced portions and only the thickness reduced portions are clamped and held by a main body.