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:
Dec. 07, 1999
Filed:
Feb. 18, 1999
Kazuto Kimura, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A plasma addressed liquid crystal display device having a flat panel structure where a liquid crystal cell is superposed on a plasma cell. The liquid crystal cell comprises a front substrate with data electrodes arranged in columns, an intermediate substrate bonded to the front substrate via a predetermined gap, and a liquid crystal filled in the gap. The plasma cell comprises a rear substrate joined to the intermediate substrate via a predeter- mined space, and discharge channels formed in the space and arranged in rows. The intermediate substrate is dimensionally so set as to include an overlapping planar region of the front substrate and the rear substrate which are different in shape from each other. And spacer particles for prescribing the gap dimension in the liquid crystal cell are existent between the intermediate and front substrates over the planar region. Further a plurality of barrier ribs for prescribing the space dimension in the plasma cell are existent between the intermediate and rear substrates over the planar region. In this display device, the gap in the liquid crystal cell is rendered dimensionally uniform, and breakage of the intermediate substrate is preventable.