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. 27, 2005
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 light input end (), a light output face () adjacent the light input end, and a back face () opposite to the light output face. A plurality of fine dots () are formed on the back face arranged in a uniform, rectangular array. The dots in a same column have a same size. The dots in a same row increase in size. A radius r of the dots in each row thereof varies as a function of a column number X of a given dot, in accordance with the formula: r=A+BX+CX+DX+EX+FX, wherein: the column number X varies in consecutive whole numbers from a value of one for the column nearest the light input end to a maximum value for the column most distal from the light input end; and A, B, C, D, E, and F are constants.