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.:

US 7646457 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 12, 2010

Filed:

Aug. 01, 2006
Applicants:

Nobutaka Fukagawa, Minami-ashigara, JP;

Hiromoto Haruta, Minami-ashigara, JP;

Hiroaki Sata, Minami-ashigara, JP;

Inventors:

Nobutaka Fukagawa, Minami-ashigara, JP;

Hiromoto Haruta, Minami-ashigara, JP;

Hiroaki Sata, Minami-ashigara, JP;

Assignee:

Fujifilm Corporation, Minato-Ku, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
Abstract

A liquid crystal display device comprising a liquid crystal cell, two polarizing plates having a polarizer and a protective film satisfying (1) and (2) below, and an optical compensatory film satisfying (3)-(8) below and disposed between the liquid crystal cell and the polarizer:0 nm≦Re(λ)≦5 nm  (1)−20 nm≦Rth(λ)≦20 nm  (2)20 nm<Re(548)<150 nm  (3)50 nm<Rth(548)<400 nm  (4)0.5<Re(446)/Re(548)<1  (5)1.0<Re(628)/Re(548)<2.0  (6)1.0<Rth(446)/Rth(548)<2.0  (7)0.5<Rth(628)/Rth(548)<1.0  (8).


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