US 12,329,001 B2
Display panel, detection method and display device
Chunming Jin, Wuhan (CN)
Assigned to Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan (CN)
Filed by Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan (CN)
Filed on Aug. 16, 2023, as Appl. No. 18/234,497.
Claims priority of application No. 202310649123.7 (CN), filed on May 31, 2023.
Prior Publication US 2024/0407207 A1, Dec. 5, 2024
Int. Cl. G09G 3/00 (2006.01); G09G 3/3233 (2016.01); H10K 59/12 (2023.01); H10K 59/131 (2023.01)
CPC H10K 59/131 (2023.02) [G09G 3/006 (2013.01); G09G 3/3233 (2013.01); H10K 59/1201 (2023.02); G09G 2300/0842 (2013.01); G09G 2330/12 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a display region and a non-display region surrounding the display region, wherein:
the display region includes a plurality of sub-pixels and at least one first detection line, at least one sub-pixel of the plurality of sub-pixels includes at least one to-be-tested device in the display region, and the at least one to-be-tested device includes a first transistor that is electrically connected to two first detection lines of the at least one first detection line, wherein the first transistor is a driving transistor configured to generate a driving current for a light-emitting element included in the at least one sub-pixel in the at least one to-be-tested device, and
the non-display region includes at least one detection pad serving as a detection terminal,
wherein one of the two first detection lines directly connects a source region of an active layer of the driving transistor to a detection pad of the at least one detection pad without through any transistor, and the other one of the two first detection lines directly connects a drain region of the active layer of the same driving transistor to another detection pad of the at least one detection pad without through any transistor, and wherein each of the two first detection lines is a line without any transistor.