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:
Aug. 16, 2016

Filed:

Jun. 24, 2013
Applicant:

Boe Technology Group Co., Ltd., Beijing, CN;

Inventors:

Yinan Liang, Beijing, CN;

Lifei Ma, Beijing, CN;

Lujiang Huangfu, Beijing, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 5/00 (2006.01); G11C 19/28 (2006.01); G09G 3/32 (2016.01);
U.S. Cl.
CPC ...
G11C 19/28 (2013.01); G09G 3/3241 (2013.01); G09G 2300/043 (2013.01); G09G 2310/0286 (2013.01);
Abstract

Provided are a threshold voltage compensation circuit of TFT and a method for the same, a shift register and a display device. The threshold voltage compensation circuit includes an input terminal, an output terminal connected to the source of the thin film transistor, a first resistor to a Kresistor connected in series, and Kconnectable link and at least one first connectable link. Since a voltage dividing circuit having connectable links divides the voltage input to the source of the thin film transistor, such that the gate-source voltage of the thin film transistor can be changed by changing the voltage of the source of the thin film transistor when the voltage of the gate of the thin film transistor is maintained unchanged, so as to control a leakage current of the thin film transistor under a turn-off state, such that the thin film transistor can be turned off normally.


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