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:
Feb. 28, 2012
Filed:
Feb. 29, 2008
Hiroaki Sata, Minami-Ashigara, JP;
Kotaro Yasuda, Minami-Ashigara, JP;
Junichi Hirakata, Minami-Ashigara, JP;
Hiroaki Sata, Minami-Ashigara, JP;
Kotaro Yasuda, Minami-Ashigara, JP;
Junichi Hirakata, Minami-Ashigara, JP;
FUJIFILM Corporation, Minato-Ku, Tokyo, JP;
Abstract
A liquid crystal display device includes a pair of polarizing films; a liquid crystal cell that is sandwiched between the pair of polarizing films; a retardation layer (A) of 70 μm or less in thickness, which is disposed between the liquid crystal cell and one of the pair of polarizing films; and a retardation layer (B) of 70 μm or less in thickness, which is disposed between the liquid crystal cell and the other of the pair of polarizing films, wherein the retardation layers (A) and (B) satisfy following formulae (1) to (3):RthU>RthD  Formula (1):−20 nm≦RthD≦20 nm  Formula (2):20 nm<RthU≦60 nm  Formula (3): wherein RthU and RthD represent a retardation in a thickness direction at a wavelength of 550 nm of the retardation layer (A) and the retardation layer (B), respectively.