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:
Nov. 13, 2012
Filed:
Oct. 04, 2010
Yi-chun Wu, Hualien County, TW;
Yu-chen Liu, Taipei, TW;
Chun-chi Chi, Taichung County, TW;
Wintek Corporation, Taichung, TW;
Abstract
A liquid crystal display (LCD) including a LCD panel, a first polarizer and a second polarizer respectively disposed at two sides of the LCD, a first a-plate and a second a-plate disposed between the polarizers and LCD panel, a biaxial compensation plate and a c-plate is provided. The biaxial compensation plate is disposed between one of the polarizers and one of the a-plates. The main axis refractive indexes n, nand nof the biaxial compensation plate satisfy the formula of Nz=(n−n)/(n−n), wherein n>nand −0.5<Nz<1. The first c-plate is disposed between one of the a-plates and LCD panel. The LCD of the present invention is capable of widening viewing angles and enhancing display quality.