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:
Jan. 23, 2007
Filed:
Feb. 22, 2005
Wei-yang Tseng, Hsinchu, TW;
Chu-chi Ting, Hualien County, TW;
Tien-lung Chiu, Kaohsiung, TW;
Wei-yu Lo, Taichung County, TW;
Wei-Yang Tseng, Hsinchu, TW;
Chu-Chi Ting, Hualien County, TW;
Tien-Lung Chiu, Kaohsiung, TW;
Wei-Yu Lo, Taichung County, TW;
Chunghwa Picture Tubes, Ltd., Taipei, TW;
Abstract
A light-guide plate comprising a light-guide board having a first refractive index and at least one light-guide part buried inside the light-guide board is provided. The light-guide part has a second refractive index larger than the first refractive index. The light-guide board and the light-guide part buried therein have different refractive indices so that the total reflection may occur for improving the light transmission efficiency in the light-guide plate.