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, 1982
Filed:
Sep. 22, 1980
Shigeru Matsuyama, Mobara, JP;
Ken Sasaki, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A pair of substrates each provided with an electrode film are adhered to each other at their peripheral portions through a sealing material to form an envelope. A liquid crystal material is injected into the envelope from a liquid crystal material injection port which is provided in a localized part of the sealing material. Then, the envelope is heated to a temperature higher than the normal room temperature, and a photosensitive curing adhesive is applied to the injection port while maintaining the envelope at the elevated temperature. After the application of the adhesive, the envelope is cooled to a temperature in the vicinity of the normal room temperature. Subsequently, the adhesive is hardened through irradiation of light at a temperature in the vicinity of the normal room temperature to hermetically seal the injection port, thereby finishing a liquid crystal display cell. Alternatively, the photo-sensitive curing adhesive may be applied at a temperature in the vicinity of the normal room temperature and then hardened at a temperature lower than normal room temperature.