US 12,087,230 B2
Display device
Seong Min Wang, Yongin-si (KR); Young In Hwang, Yongin-si (KR); Jin Woo Park, Yongin-si (KR); and Yong Ho Yang, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-Si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Jul. 26, 2023, as Appl. No. 18/226,273.
Application 17/940,094 is a division of application No. 17/172,132, filed on Feb. 10, 2021, granted, now 11,468,844, issued on Oct. 11, 2022.
Application 17/172,132 is a division of application No. 16/279,746, filed on Feb. 19, 2019, granted, now 10,950,177, issued on Mar. 16, 2021.
Application 18/226,273 is a continuation of application No. 17/940,094, filed on Sep. 8, 2022, granted, now 11,756,487.
Claims priority of application No. 10-2018-0038227 (KR), filed on Apr. 2, 2018.
Prior Publication US 2023/0368741 A1, Nov. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/3266 (2016.01); G09G 3/3258 (2016.01); H01L 27/12 (2006.01); H01L 29/786 (2006.01); H10K 59/131 (2023.01)
CPC G09G 3/3266 (2013.01) [H01L 29/78648 (2013.01); H10K 59/131 (2023.02); G09G 3/3258 (2013.01); G09G 2300/0426 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/0297 (2013.01); G09G 2320/0247 (2013.01); H01L 27/124 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a first pixel coupled to an emission control line; and
an emission control stage configured to selectively couple the emission control line to a first supply voltage line or a second supply voltage line,
wherein the emission control stage comprises:
a first emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the emission control line, and a gate electrode coupled to a first node;
a second emission control transistor including a first electrode coupled to the emission control line, a second electrode coupled to the second supply voltage line, and a gate electrode coupled to a second node; and
a third emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the first node, a main gate electrode, and a sub-gate electrode, and
wherein the main gate electrode and the sub-gate electrode of the third emission control transistor are electrically coupled to the gate electrode of the second emission control transistor.