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.

Date of Patent:
Sep. 27, 2016

Filed:

Nov. 24, 2011
Applicants:

Shinya Ono, Osaka, JP;

Arinobu Kanegae, Osaka, JP;

Hitoshi Tsuge, Osaka, JP;

Kouhei Ebisuno, Kyoto, JP;

Inventors:

Shinya Ono, Osaka, JP;

Arinobu Kanegae, Osaka, JP;

Hitoshi Tsuge, Osaka, JP;

Kouhei Ebisuno, Kyoto, JP;

Assignee:

JOLED INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01); G09G 3/32 (2016.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3258 (2013.01); G09G 3/3233 (2013.01); G09G 3/3659 (2013.01); G09G 2300/0439 (2013.01); G09G 2300/0809 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0861 (2013.01); G09G 2300/0876 (2013.01); G09G 2310/0294 (2013.01); G09G 2320/0223 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/043 (2013.01);
Abstract

Pixel circuits of a display device each include: a drive transistor including one of a source and drain connected to a power source line; a capacitive element including a first terminal connected to a gate of the drive transistor; a switching element which switches conduction/non-conduction between a second terminal of the capacitive element and a data line; a switching element which switches conduction/non-conduction between the second terminal of the capacitive element and the source of the drive transistor; a switching element which switches conduction/non-conduction between the first terminal of the capacitive element and a reference voltage line; a light-emitting element including a first terminal connected to the other of the source and drain of the drive transistor and a second terminal connected to another power source line. The reference voltage line provides a forward bias voltage larger than a threshold voltage across the gate and source of the drive transistor.


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