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:
Nov. 07, 2017

Filed:

Oct. 15, 2015
Applicants:

Shanghai Tianma Am-oled Co., Ltd., Shanghai, CN;

Tianma Micro-electronics Co., Ltd., Shenzhen, CN;

Inventors:

Dan Chen, Shanghai, CN;

Dong Qian, Shanghai, CN;

Hanyu Gu, Shanghai, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); G09G 3/32 (2016.01); G09G 3/3233 (2016.01); G09G 3/3283 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3659 (2013.01); G09G 3/3233 (2013.01); G09G 3/3283 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0861 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/043 (2013.01);
Abstract

The application provides a pixel circuit, a driving method, a display panel and a display device. The pixel circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a driving transistor, a storage capacitor and a light emitting element, and by cooperative driving of the respective transistors and the storage capacitor, the driving current of the driving transistor can be independent of the gate-source voltage and the threshold voltage of the driving transistor.


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