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. 06, 2007
Filed:
Sep. 30, 2004
Ikuo Hiyama, Tokyo, JP;
Shinichi Komura, Tokyo, JP;
Tsunenori Yamamoto, Tokyo, JP;
Yuka Utsumi, Tokyo, JP;
Mutsumi Maehara, Tokyo, JP;
Daisuke Kajita, Tokyo, JP;
Ikuo Hiyama, Tokyo, JP;
Shinichi Komura, Tokyo, JP;
Tsunenori Yamamoto, Tokyo, JP;
Yuka Utsumi, Tokyo, JP;
Mutsumi Maehara, Tokyo, JP;
Daisuke Kajita, Tokyo, JP;
Hitachi Displays, Chiba, JP;
Abstract
In an in-plane switching (ISP) mode controlling transmission and shielding of light by application of lateral electric field to liquid crystal molecules aligned in the direction in parallel to a substrate, increase in luminance or color shift at a black-representation area or upon black-representation condition at an inclined viewing angle is reduced. First and second polarizing plates sandwiching a liquid crystal layer each have a supporting member (plate) on at least either surface thereof. The supporting member on the inside surface of the first polarizing plate on the side of an illumination unit has a retardation in the thickness direction R·hand the supporting member on the inside surface of the second polarizing plate has a retardation in the thickness direction R·h. In the O-mode, R·h>R·hand in the E-mode, R·h<R·h