US 12,367,809 B2
Display device and tiled display device
Jung Hwan Hwang, Yongin-si (KR); Hyun Joon Kim, Yongin-si (KR); and Kye Uk Lee, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Apr. 21, 2023, as Appl. No. 18/305,167.
Claims priority of application No. 10-2022-0095627 (KR), filed on Aug. 1, 2022.
Prior Publication US 2024/0038147 A1, Feb. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/32 (2016.01); G09G 3/00 (2006.01)
CPC G09G 3/32 (2013.01) [G09G 3/006 (2013.01); G09G 2300/026 (2013.01); G09G 2300/0426 (2013.01); G09G 2310/0275 (2013.01); G09G 2320/0633 (2013.01); G09G 2330/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
first sub-pixels commonly connected to a first global data line, each of the first sub-pixels comprising a first light emitting element configured to emit light of a first color; and
second sub-pixels commonly connected to a second global data line different from the first global data line, each of the second sub-pixels comprising a second light emitting element configured to emit light of a second color different from the first color,
wherein at least one of the first sub-pixels comprises:
a first circuit configured to supply a driving current to the first light emitting element based on a first global data voltage received from the first global data line;
a second circuit configured to control a supply period of the driving current based on a data voltage received from a data line; and
a test transistor comprising a first electrode connected to an anode of the first light emitting element, and a second electrode connected to the data line.