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:
Mar. 28, 2006
Filed:
Aug. 11, 2003
Tai-cheng Yu, Tu-chen, TW;
Charles Leu, Fremont, CA (US);
Ga-lane Chen, Fremont, CA (US);
Hon Hai Precision Ind. Co., Ltd., Taipei Hsien, TW;
Abstract
A light guide plate () includes a parallelepiped block. The block includes an input surface () for receiving light beams irradiated from a light source; two side surfaces perpendicularly adjoining the incident surface; an output surface () perpendicularly adjoining the incident surface and the side surfaces; and a bottom surface () opposing to the output surface. An array of prisms () is integrally formed on the output surface. Each prism is shaped as a square pyramid. All the prisms have a same size and are arranged contiguously with each other. Alternatively, the light guide plate may be a wedge-shaped block ('). A rectangular array of prisms (′) is integrally formed on an output surface (′) thereof. Each prism is shaped as a square pyramid. The prisms are arranged contiguously with each other, and sizes of the prisms gradually decrease from a thick end to a thin end of the block.