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:
Feb. 02, 2012
Motohiro Itadani, Ota-ku, JP;
Shuhei Okude, Yokohama, JP;
Shunsuke Yamanaka, Takaoka, JP;
Kohei Arakawa, Machida, JP;
Motohiro Itadani, Ota-ku, JP;
Shuhei Okude, Yokohama, JP;
Shunsuke Yamanaka, Takaoka, JP;
Kohei Arakawa, Machida, JP;
Zeon Corporation, Tokyo, JP;
Abstract
A liquid crystal display device of an in-plane switching mode comprises at least optically anisotropic members (A) and (B) and a liquid crystal cell disposed between a pair of polarizers having absorption axes disposed approximately perpendicularly to each other, wherein n>nand n>n(n, n: refractive indices (n) in the direction of the in-plane slow axis; n, n: n in the in-plane direction perpendicular to the above direction; n, n: n in the direction of thickness, each at 550 nm); the in-plane slow axes of (A) and (B) are approximately parallel or perpendicular to each other; and the in-plane slow axis of (A) is approximately parallel or perpendicular to the absorption axis of a polarizer closer to (A). The antireflection property, scratch resistance and durability are excellent, the angle of field is wide, and uniform display of images with great contrast can be achieved at any angle of observation.