US 11,928,994 B2
Display device with crack detection circuitry and manufacturing method thereof
Kwang Sae Lee, Asan-si (KR); Ji-Hyun Ka, Seongnam-si (KR); Won Kyu Kwak, Seongnam-si (KR); Hwa Young Song, Asan-si (KR); and Ki Myeong Eom, Suwon-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Appl. No. 16/972,918
Filed by Samsung Display Co., LTD., Yongin-si (KR)
PCT Filed Jun. 4, 2019, PCT No. PCT/KR2019/006750
§ 371(c)(1), (2) Date Dec. 7, 2020,
PCT Pub. No. WO2019/235823, PCT Pub. Date Dec. 12, 2019.
Claims priority of application No. 10-2018-0065523 (KR), filed on Jun. 7, 2018.
Prior Publication US 2021/0248938 A1, Aug. 12, 2021
Int. Cl. G09G 3/00 (2006.01); G09G 3/20 (2006.01)
CPC G09G 3/006 (2013.01) [G09G 3/20 (2013.01); G09G 2310/0275 (2013.01); G09G 2330/12 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A display device, comprising:
a substrate comprising a display area and a non-display area disposed near the display area;
a plurality of pixels disposed in the display area;
a plurality of signal lines disposed on the substrate and connected to the pixels; and
a pad portion disposed in the non-display area and comprising a plurality of pads,
wherein the signal lines comprise:
a first crack detecting line disposed in the non-display area and directly electrically connected to a first test voltage pad and a first pad at a first node, directly electrically connected to a second pad at a second node, and extending directly across from at least a majority of one side of the display area between the first node and the second node; and
a first data line comprising a first end connected to a first transistor connected to the first crack detecting line at the second node, and a second end connected to corresponding pixels from among the plurality of pixels.