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:
Dec. 22, 2015
Filed:
Jun. 23, 2015
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Tomokazu Morita, Mishima, JP;
Takeyoshi Saiga, Tokyo, JP;
Yu Miyajima, Utsunomiya, JP;
Seiji Mishima, Yamato, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/01 (2006.01); G03G 15/04 (2006.01); G03G 15/043 (2006.01);
U.S. Cl.
CPC ...
G03G 15/04036 (2013.01); G03G 15/043 (2013.01);
Abstract
An exposure unit includes a lens group having a plurality of lenses arrayed in a first direction and an element array which is arranged to face the lens group and includes a plurality of organic EL elements arrayed in parallel with the first direction on a substrate, a drive circuit including a plurality of TFT circuits for controlling luminance per unit time of the organic EL element is arranged on the substrate, and the TFT circuit controls the luminance of the organic EL element based on a signal created by an area gray scale method.