US 12,154,485 B2
Pixel, display device, controller and method of driving display device including bias power line
Se Hyuk Park, Yongin-si (KR); Hong Soo Kim, Yongin-si (KR); Young Ha Sohn, Yongin-si (KR); Jin Wook Yang, Yongin-si (KR); Dong Gyu Lee, Yongin-si (KR); and Jae Hyeon Jeon, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Apr. 12, 2023, as Appl. No. 18/133,615.
Claims priority of application No. 10-2022-0122759 (KR), filed on Sep. 27, 2022.
Prior Publication US 2024/0105104 A1, Mar. 28, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2300/0842 (2013.01); G09G 2320/0247 (2013.01); G09G 2330/021 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A pixel comprising:
a light emitting element;
a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is to be applied, and a third node electrically connected to the light emitting element; and
a bias control transistor including a gate electrode for receiving a bias control signal, a first electrode connected to the second node, and a second electrode connected to a bias power line, wherein the bias control transistor is configured to transmit a bias voltage received through the bias power line to the second node when the bias control signal has a turn-on level,
wherein, in one frame period, a voltage level of the bias voltage to be applied to the second node sequentially increases.