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:
Jul. 23, 2024

Filed:

May. 16, 2023
Applicant:

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

Inventors:

Qingjun Lai, Xiamen, CN;

Yihua Zhu, Xiamen, CN;

Yong Yuan, Shanghai, CN;

Ping An, Shanghai, CN;

Zhaokeng Cao, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01); G11C 19/20 (2006.01); G11C 19/28 (2006.01); G09G 3/3266 (2016.01);
U.S. Cl.
CPC ...
G09G 3/20 (2013.01); G11C 19/20 (2013.01); G11C 19/28 (2013.01); G09G 3/3266 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/061 (2013.01); G09G 2310/08 (2013.01);
Abstract

A display panel includes a shift register, a pixel circuit, and a driving circuit. The shift register includes a first control unit, a second control unit, a third control unit, and a fourth control unit. The first control unit is configured to receive an input signal and control a signal of a first node in response to a first clock signal. The second control unit is configured to receive a first voltage signal and control a signal of a second node in response to the input signal and the first clock signal. The third control unit is configured to receive the first voltage signal and a second voltage signal and control a signal of a fourth node in response to the signal of the second node and a signal of a third node.


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