US 12,236,817 B2
Display panel test circuit and display device including the same
Choonghee Oh, Hwaseong-si (KR); Taehoon Kwon, Suwon-si (KR); Sukyoung Kim, Hwaseong-si (KR); Ahyoung Kim, Hwaseong-si (KR); and Hwayoung Song, Asan-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Aug. 16, 2022, as Appl. No. 17/889,250.
Claims priority of application No. 10-2022-0017095 (KR), filed on Feb. 9, 2022.
Prior Publication US 2023/0306883 A1, Sep. 28, 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 2300/0443 (2013.01); G09G 2300/0452 (2013.01); G09G 2330/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a first pixel row including a first first-color sub-pixel and a second first-color sub-pixel both configured to display a first color;
a first first-structure transmission line;
a first second-structure transmission line neighboring the first first-structure transmission line with no intervening transmission line disposed in a display panel test circuit and connected to a sub-pixel which displays a different color than the first color;
a first transistor electrically connected through the first first-structure transmission line to the first first-color sub-pixel and configured to receive a first test voltage; and
a second transistor electrically connected through the first second-structure transmission line to the second first-color sub-pixel and configured to receive a second test voltage different from the first test voltage,
wherein the first transistor and the second transistor are disposed in a non-display area of the display device.