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:
Jun. 27, 1989
Filed:
Mar. 29, 1988
Applicant:
Inventors:
Robert A Hartman, Eindhoven, NL;
Hans P Peloschek, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
3241 / ; 250310 ;
Abstract
Picture electrodes of an LCD semi-manufactured product in which normal addressing is not possible are scanned by means of an electron beam (7) in order to test the associated switching elements (13, 20). In a different type of LCD semi-manufactured product the quality of the switching elements (23, 24) can be monitored by means of irradiation with a laser beam (5).
Hartman, Robert. (1989). Test method for lcd elements (U.S. Patent No. 4843312). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4843312
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile