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:
Nov. 07, 1989
Filed:
Jun. 23, 1988
Yoshinori Ootsuka, Okazaki, JP;
Kinya Atsumi, Okazaki, JP;
Masumi Arai, Nukata, JP;
Tadashi Hattori, Okazaki, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
An EL element is composed of a glass base plate, a transparent electrode, a dielectric body layer, a luminous body layer, another dielectric body layer and a rear electrode which are piled on each other in order. An an electron inflow restraining layer is formed between the luminous body layer and another dielectric body layer. The luminous body layer is formed by doping Mn into a ZnS crystal and the electron inflow restraining layer is formed by irradiating gas ions of high energy to the surface of the luminous body layer. The electron inflow restraining layer restrains the inflow of electrons supplied to the luminous body layer while being accelerated by an electric field formed between the transparent electrode and the rear electrode.