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. 19, 2025

Filed:

Dec. 18, 2023
Applicant:

Samsung Display Co., Ltd., Yongin-Si, KR;

Inventor:

Jaekeun Lim, Yongin-si, KR;

Assignee:

Samsung Display Co., Ltd., Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01); G09G 3/32 (2016.01); G09G 3/3266 (2016.01);
U.S. Cl.
CPC ...
G09G 3/20 (2013.01); G09G 3/32 (2013.01); G09G 3/3266 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0267 (2013.01); G09G 2310/0286 (2013.01);
Abstract

A shift register includes a plurality of stages. At least one of the stages is configured to receive an input signal, a first clock signal, a second clock signal, a first power voltage and a second power voltage and to output an output signal. The at least one of the stages includes a pull up switching element connected between a first power voltage terminal configured to receive the first power voltage and an output terminal configured to output the output signal, a pull down switching element connected between a second power voltage terminal configured to receive the second power voltage and the output terminal, a first pull down control switching element connected to a control electrode of the pull down switching element and a second pull down control switching element connected to the first power voltage terminal and the control electrode of the pull down switching element.


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