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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.

Patent No.:

US 12412530 B1

PDFFull Text
Date of Patent:
Sep. 09, 2025

Filed:

Jul. 18, 2022

Display device and electronic device

Applicant:

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

Inventors:

Yojiro Matsueda, Kanagawa, JP;

Jiro Yanase, Kanagawa, JP;

Assignee:

WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan, CN;

Attorney:

NIXON & VANDERHYE

Primary Examiner:

Chad M Dicke

Assistant Examiner:

Jeremy Daniel Watts

Int. Cl.
CPC ...
G09G 3/3241 (2016.01); G09G 3/3233 (2016.01); H10K 50/86 (2023.01); H10K 59/121 (2023.01); H10K 59/131 (2023.01); H10K 59/40 (2023.01); H10K 59/65 (2023.01); H10K 59/80 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
G09G 3/3241 (2013.01); G09G 3/3233 (2013.01); H10K 50/86 (2023.02); H10K 59/1216 (2023.02); H10K 59/131 (2023.02); H10K 59/40 (2023.02); H10K 59/65 (2023.02); H10K 59/8791 (2023.02); H10K 77/111 (2023.02); G09G 2300/0426 (2013.01); G09G 2300/0852 (2013.01); G09G 2310/0297 (2013.01); G09G 2320/0233 (2013.01); G09G 2330/021 (2013.01); G09G 2330/04 (2013.01); G09G 2360/14 (2013.01); H10K 2102/311 (2023.02);
Abstract

A second display region has a lower pixel density than a first display region. A third metal layer is located upper than a first metal layer and a second metal layer. The occupancy of the third metal layer in the second display region is lower than the occupancy in the first display region. In a pixel unit, the first metal layer includes a first electrode region to control an amount of electric current in a driving transistor, the second metal layer includes a second electrode region and a third electrode region to supply current to the driving transistor, and the third metal layer includes a main region to form a capacitor included in a capacitive element to store a control voltage for the driving transistor, and an island region surrounded by the main region with a gap and interconnected with a lower electrode region by a via region.

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