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:
Apr. 23, 1996
Filed:
Nov. 01, 1993
Nobuo Takahashi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In an active matrix liquid crystal device assuming a light blocking condition when a voltage is applied, there are provided a main plate formed with a pixel electrode, wiring electrodes and a switching transistor, an opposing plate formed with an opposing electrode, and a liquid crystal material sandwiched between the main plate and the opposing plate, so that a transmission light is irradiated from the main plate side. A light blocking layer acting also as a storage capacitor electrode is provided on the main plate through an insulating layer under the wiring electrode, the switching device and a periphery of the pixel electrode. Thus, it is to prevent light leakage at a boundary of a pixel, and to simultaneously suppress and conceal an orientation abnormality of the liquid crystal occurring at a periphery of the pixel electrode.