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:
Aug. 28, 2001
Filed:
Dec. 10, 1999
Applicant:
Inventors:
Assignee:
Seiko Epson Corporation, , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 4/104 ;
U.S. Cl.
CPC ...
H01L 4/104 ;
Abstract
Provided is a luminous element which utilizes a tribo-luminescence phenomenon. The luminous element comprises: a pressure luminous layer (,) which emits light upon the application of pressure; and a piezoelectric element which comprises a piezoelectric film (,) held between electrode films (,) and (,), and which is located so as to be capable of applying pressure on the pressure luminous layer.