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:
Apr. 10, 1979
Filed:
Jun. 17, 1977
Applicant:
Inventor:
Ifay F Chang, Mahopac, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
315-85 ; 313391 ; 313397 ; 313463 ;
Abstract
A multistable or memory electron beam addressed electroluminescent display panel is provided. The display panel is electron beam activated in the presence of an A. C. field, without the need of prior art flood guns. The panel may be activated or switched by direct electron beam activation of an electroluminescent film or by electron beam induced light radiation from a cathodoluminescent layer or from an insulating layer.
Chang, Ifay. (1979). Multistable cathode ray type storage display device (U.S. Patent No. 4149108). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4149108
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile