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:
Oct. 24, 2000
Filed:
Sep. 02, 1997
Hajime Nakamura, Yokohama, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A liquid crystal display device is provided which improves the angle of view characteristics over that of a conventional OCB type LCD, has a high transmissivity, and can be driven at a low voltage. The liquid crystal display device includes two optical phase difference compensating mechanisms interposed between two substrates and two filter mechanisms, each of which compensating mechanisms has an action for performing compensating modulation on light passing through about one half the thickness of said liquid crystal layer, wherein the product of anisotropy .DELTA.n of the liquid crystal layer and its thickness d is preferably 0.8<.DELTA.nd<2.0.