US 12,288,524 B2
Pixel circuit and display device including the same
Seung Ho Heo, Paju-si (KR); and Dong Hyun Lee, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Oct. 18, 2023, as Appl. No. 18/489,595.
Claims priority of application No. 10-2023-0010512 (KR), filed on Jan. 27, 2023.
Prior Publication US 2024/0257757 A1, Aug. 1, 2024
Int. Cl. G09G 3/3258 (2016.01); G09G 3/3241 (2016.01)
CPC G09G 3/3258 (2013.01) [G09G 3/3241 (2013.01); G09G 2230/00 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/043 (2013.01); G09G 2300/0871 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pixel circuit comprising:
a driving element including a first electrode to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node;
a light emitting element including an anode electrode and a cathode electrode connected to a second voltage node to which a cathode voltage is applied;
a first capacitor connected between the second node and a fourth node;
a second capacitor connected between the third node and the fourth node;
a first switch element connected between the second node and a data line to which a data voltage is applied;
a second switch element connected between the fourth node to which the first capacitor and the second capacitor are connected and a third voltage node to which a reference voltage is applied;
a third switch element connected between the third node and a fourth voltage node to which an initialization voltage is applied;
a fourth switch element connected between the second node and the third voltage node; and
a fifth switch element connected between the third node and the anode electrode of the light emitting element,
wherein the second switch element and fourth switch element are connected to be controlled by different scan signals.