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. 06, 2022

Filed:

Apr. 23, 2020
Applicant:

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

Inventors:

Keun Woo Kim, Yongin-si, KR;

Hye Na Kwak, Yongin-si, KR;

Doo Na Kim, Yongin-si, KR;

Sang Sub Kim, Yongin-si, KR;

Thanh Tien Nguyen, Yongin-si, KR;

Yong Su Lee, Yongin-si, KR;

Jae Hwan Chu, Yongin-si, KR;

Assignee:

SAMSUNG DISPLAY CO., LTD., Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3233 (2016.01); H01L 27/32 (2006.01); H01L 27/12 (2006.01); H01L 29/786 (2006.01); H01L 29/66 (2006.01);
U.S. Cl.
CPC ...
H01L 27/3262 (2013.01); G09G 3/3233 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0809 (2013.01); G09G 2320/0233 (2013.01); H01L 27/1222 (2013.01); H01L 27/1274 (2013.01); H01L 27/1288 (2013.01); H01L 29/66757 (2013.01); H01L 29/78675 (2013.01); H01L 29/78696 (2013.01); H01L 2227/323 (2013.01);
Abstract

A display device includes a pixel disposed in a display region. The pixel includes a light-emitting element connected between a first power source and a second power source; a first transistor connected between the first power source and the light-emitting element to control a driving current flowing in the light-emitting element in response to a voltage of a first node; and at least one switching transistor to transmit a data signal or a voltage of an initialization power source to the first node. The switching transistor includes a first channel region, a first conductive region and a second conductive region which are respectively disposed at opposite sides of the first channel region, and a first wide band-gap region disposed between the first channel region and the second conductive region.


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