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:
Feb. 19, 1985
Filed:
Jun. 02, 1982
Applicant:
Inventors:
Perry A Penz, Richardson, TX (US);
Jeffrey B Sampsell, Plano, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G02B / ; A61J / ; B29C / ;
U.S. Cl.
CPC ...
350320 ; 350343 ; 264-4 ; 264 25 ;
Abstract
The access hole for filling the liquid crystal cavity in an LCD having plastic front and rear members is sealed by welding the two members together. Pressure is applied during the weld to insure a good joint. The welding process avoids problems of non-adhesion or poor adhesion associated with the use of epoxy, especially the type of epoxy used for sealing glass LCDs.