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:
Jun. 03, 1997
Filed:
Aug. 23, 1994
Applicant:
Inventors:
Tsuyoshi Uemura, Kadoma, JP;
Shinnya Kosako, Kadoma, JP;
Hideaki Mochizuki, Osaka, JP;
Masao Yamamoto, Kishiwada, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
359 81 ; 359 51 ;
Abstract
A liquid display panel having minute unit liquid crystal cells, liquid crystalline molecules present in a plane passing the thicknesswise middle points of the unit liquid crystal layer and parallel to the substrate oriented substantially uniformly in all directions and at least one polarization plate, the aforementioned liquid crystal is a nematic liquid crystal material having a positive permittivity anisotropy, so that a wide viewing angle liquid crystal display panel enables high contrast and uniform display of a liquid crystal panel without a rubbing treatment.