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:
May. 08, 2001
Filed:
Dec. 16, 1998
Hiroyuki Fujii, Moriguchi, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An organic electroluminescent apparatus according to the present invention has an organic electroluminescent device provided with an organic layer including luminescent materials in which the emission spectrum varies depending on a voltage of an electric signal between a hole injection electrode and an electron injection electrode and voltage applying means for applying a voltage of an electric signal in a pulse shape between the hole injection electrode and the electron injection electrode, the voltage applying means changing the voltage amplitude of the electric signal in a pulse shape applied between the hole injection electrode and the electron injection electrode, to change the emission spectrum in the organic electroluminescent device.