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:
May. 09, 2017

Filed:

May. 16, 2014
Applicants:

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

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

Inventors:

Baoyu Liu, Beijing, CN;

Liang Zhang, Beijing, CN;

Yizhen Xu, Beijing, CN;

Zhihua Sun, Beijing, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); H03K 19/0185 (2006.01); G09G 3/20 (2006.01); H03K 19/0175 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3648 (2013.01); G09G 3/20 (2013.01); G09G 3/3696 (2013.01); H03K 19/017509 (2013.01); H03K 19/018528 (2013.01); G09G 2300/0426 (2013.01); G09G 2310/0267 (2013.01); G09G 2310/0289 (2013.01);
Abstract

Provided are a level shift circuit, a gate driving circuit and a display apparatus. The level shift circuit includes: a third to a sixth transistor, sources and gates thereof being connected to a DC power source and an offset voltage terminal respectively; a seventh transistor, source and gate thereof being connected to a reference ground and the offset voltage terminal respectively; and a first to a second transistor, gates and sources thereof being connected to an input signal terminal and drain of seventh transistor respectively, wherein drains of third and fifth transistors are connected as a first output terminal which is connected to drain of the first transistor, drains of fourth and sixth transistors are connected as a second output terminal which is connected to drain of the second transistor. Common-mode voltage of two output terminals of the level shift circuit with respect to the reference ground is not reduced.


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