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:
Jul. 17, 2012
Filed:
Dec. 25, 2008
Wei-chih Liu, Taichung, TW;
Jie-shiung Yang, Taoyuan County, TW;
Wei-Chih Liu, Taichung, TW;
Jie-Shiung Yang, Taoyuan County, TW;
Taiwan TFT LCD Association, Hsinchu, TW;
Chunghwa Picture Tubes, Ltd., Taoyuan, TW;
Au Optronics Corporation, Hsinchu, TW;
Hannstar Display Corporation, New Taipei, TW;
Chi Mei Optoelectronics Corporation, Tainan County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
An optical sheet suitable for linear polarized light to pass through is provided. The optical sheet includes a substrate and a retardation film. The retardation film herein is located on the substrate and has a plurality of optical axes with different extending directions. The linear polarized light after passing through the retardation film is converted into a plurality of linear polarized light with different polarization directions, wherein the retardation film substantially has a phase retardation of λ/2 at anywhere of the area where the linear polarized light passes through and λ is the wavelength of the linear polarized light. Besides, the present invention also provides a display apparatus, a fabricating method of an optical sheet and a fabricating method of a display apparatus.