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. 03, 2018
Filed:
Apr. 17, 2015
Nec Lighting, Ltd., Tokyo, JP;
Yoshikazu Sakaguchi, Tokyo, JP;
NEC LIGHTING, LTD., Tokyo, JP;
Abstract
The present invention aims to provide an organic EL panel control device, a light source device, and an organic EL panel control method, capable of inhibiting the change (shift) in color temperature of white light produced by an organic EL panel to be controlled. The organic EL panel control device according to the present invention includes a luminance control unit. The luminance control unit controls, among a plurality of organic EL elements with different emission colors in an organic EL panel to be controlled, luminances of organic EL elements other than a reference organic EL element having a shortest luminance life in such a manner that, with reference to a luminance of the reference organic EL element, white light produced by additive color mixture of different colors of light emitted from the plurality of organic EL elements has the same color temperature as a previously set color temperature.