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. 06, 2013
Filed:
Dec. 18, 2008
Masanao Ookawa, Nara, JP;
Shin Ukegawa, Kyoto, JP;
Minoru Maehara, Osaka, JP;
Hirofumi Konishi, Osaka, JP;
Hirofumi Takaki, Aichi, JP;
Masanao Ookawa, Nara, JP;
Shin Ukegawa, Kyoto, JP;
Minoru Maehara, Osaka, JP;
Hirofumi Konishi, Osaka, JP;
Hirofumi Takaki, Aichi, JP;
Panasonic Corporation, Kadoma-shi, Osaka, JP;
Abstract
A planar light-emitting module lighting circuit uses a lamp comprising an organic electroluminescence layer and electrodes sandwiching the organic electroluminescence layer as a load, and applies a current to the load so as to cause the organic electroluminescence layer to emit light. In the planer light-emitting module lighting circuit, a current at a lighting start time of the lamp is made small as compared with a current at a stationary lighting time at which a predetermined time period has passed since a lighting start.