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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 11957017 B1

PDFFull Text
Date of Patent:
Apr. 09, 2024

Filed:

Oct. 03, 2019

Display device

Applicant:

Sharp Kabushiki Kaisha, Osaka, JP;

Inventor:

Takayuki Nishiyama, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, JP;

Attorney:

Keating & Bennett, LLP

Primary Examiner:

Douglas M Wilson

Int. Cl.
CPC ...
H10K 59/131 (2023.01); G09G 3/20 (2006.01); G09G 3/3233 (2016.01); H01L 21/768 (2006.01); H01L 23/48 (2006.01); H01L 23/522 (2006.01); H01L 29/66 (2006.01); H01L 29/786 (2006.01); H10K 59/121 (2023.01); H10K 59/35 (2023.01);
U.S. Cl.
CPC ...
H10K 59/131 (2023.02); G09G 3/3233 (2013.01); G09G 3/2003 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2320/0223 (2013.01); H01L 21/76805 (2013.01); H01L 23/481 (2013.01); H01L 23/5226 (2013.01); H01L 29/66484 (2013.01); H01L 29/78645 (2013.01); H01L 2924/13085 (2013.01); H10K 59/1213 (2023.02); H10K 59/35 (2023.02); H10K 59/351 (2023.02);
Abstract

A display device includes, in a display area: scan control lines and data signal lines intersecting with each other; subpixels each including a subpixel circuit provided at an intersection of the scan control lines and the data signal lines; and light-emitting elements, one for each of the subpixels. The subpixel circuit includes a drive transistor, a write transistor, and a capacitor that retains a data signal. The write transistor includes a conduction terminal connected to an associated one of the data signal lines, another conduction terminal connected to a first gate terminal of the drive transistor, and a control terminal connected to an associated one of the scan control lines. Each of the light-emitting elements includes a first element electrode, a light-emitting layer, and a second element electrode, the first element electrode being connected to a conduction terminal of the drive transistor. The drive transistor includes a second gate terminal connected to the second element electrode via a contact hole.

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