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:
Jan. 04, 2000
Filed:
Mar. 17, 1995
Hitachi, Ltd., Tokyo, JP;
Abstract
An active matrix type liquid crystal display apparatus having a pair of substrates sandwiching a liquid crystal layer. A group of electrodes form a matrix of pixels and an active device, each of the group of electrodes being provided between the liquid crystal and one of the substrates. The electrodes are arranged so as to apply an electric field, mainly parallel to the substrates. The resistivity of the liquid crystal layer is lower than or equal to 1.times.10.sup.14 .OMEGA..multidot.cm. The relationship between the elasticity constant K2 and the dielectric anisotropy .DELTA..epsilon. satisfies the equation K.sub.2 /.DELTA..epsilon.<9.0.times.10.sup.-8 [dyn]. Further, a relationship between a gap between a pixel electrode and a common electrode and a gap between the pair of substrates is satisfied.