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. 21, 1999
Filed:
Oct. 09, 1998
Tadashi Matsuzawa, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A liquid crystal display element cell is obtained by setting two substrates to oppose each other at a predetermined gap and sealing a liquid crystal in the space formed between the substrates. An apparatus for sealing the liquid crystal display element cell includes seal rings, pressure plates, a pressure mechanism, and a compressed gas supply mechanism. The seal rings are formed to surround the display surface of the liquid crystal display element cell. Each seal ring has a Z-shaped section. Each pressure plate has a groove which fits with a corresponding seal ring therein, and a pressurized air injection port on the inner side of which is surrounded by the groove. Each pressure plate is placed on the upper and lower surfaces of the liquid crystal display element cell to be in contact with the seal rings. Pressure regions are formed in the spaces surrounded by the pressure plates, the liquid crystal display element cell, and the seal rings. The pressure mechanism presses the pressure plates with a predetermined pressure. The compressed gas supply mechanism supplies a pressurized gas of a predetermined pressure to the injection port.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile