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. 17, 2024

Filed:

Jun. 30, 2023
Applicant:

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

Inventors:

Qingjun Lai, Xiamen, CN;

Yihua Zhu, Xiamen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01); G09G 3/3266 (2016.01); G09G 3/20 (2006.01); G09G 3/325 (2016.01); G11C 19/28 (2006.01);
U.S. Cl.
CPC ...
G09G 3/32 (2013.01); G09G 3/3266 (2013.01); G09G 3/20 (2013.01); G09G 3/325 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/061 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01); G09G 2340/0435 (2013.01); G11C 19/28 (2013.01);
Abstract

A display panel includes a driving circuit including N stages of cascaded shift registers, and each shift register includes: a first control part and a second control part; the second control part is configured to at least receive the signal of the second node, the signal of the third node, and a frequency control signal to generate an output signal; one shift register of the cascaded shift registers connected to a display unit in the first region is configured to receive the first frequency control signal, and one shift register of the cascaded shift registers connected to a display unit in the second region is configured to receive the second frequency control signal; a data refresh frequency of the display unit in the first region is F, and a data refresh frequency in the second region is F, F<F


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