US 11,922,841 B2
Display device capable of inspecting misalignment of layers
Yoon Ho Kim, Asan-si (KR); Jong Woo Park, Seongnam-si (KR); June Hwan Kim, Daejeon (KR); Ki Ju Im, Suwon-si (KR); Young Tae Choi, Asan-si (KR); and Hyuncheol Hwang, Seoul (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Sep. 22, 2022, as Appl. No. 17/950,174.
Claims priority of application No. 10-2022-0020425 (KR), filed on Feb. 16, 2022.
Prior Publication US 2023/0261007 A1, Aug. 17, 2023
Int. Cl. G09G 3/00 (2006.01); H01L 27/12 (2006.01)
CPC G09G 3/006 (2013.01) [H01L 27/124 (2013.01); G09G 2300/0426 (2013.01); G09G 2330/12 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate including a display area and a peripheral area;
a plurality of light-emitting elements positioned in the display area;
a plurality of pixel circuits connected to the plurality of light-emitting elements, respectively;
a sensor positioned on the peripheral area of the substrate;
a leakage current detecting circuit connected to the sensor; and
a light emitting wiring connected to the leakage current detecting circuit and connected to at least one of the plurality of light-emitting elements,
wherein the sensor includes a first sensor, the first sensor includes:
a first sensing transistor, and
a first conductive pattern spaced apart from a channel of the first sensing transistor, the first conductive pattern being a floating pattern, and
wherein the first conductive pattern is positioned in the same layer as at least one of a plurality of layers configuring the plurality of pixel circuits.