US 11,723,233 B2
Display device
DukYoung Jeong, Seoul (KR); YuHo Jung, Gyeonggi-do (KR); and Seonha Yu, Gyeonggi-do (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Jun. 22, 2021, as Appl. No. 17/354,579.
Claims priority of application No. 10-2020-0128782 (KR), filed on Oct. 6, 2020.
Prior Publication US 2022/0109036 A1, Apr. 7, 2022
Int. Cl. H01L 27/32 (2006.01); H10K 59/121 (2023.01); H10K 77/10 (2023.01); H01L 27/12 (2006.01)
CPC H10K 59/1213 (2023.02) [H10K 77/10 (2023.02); H01L 27/1225 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
an optical device located under the substrate in a display area;
a subpixel layer located over the substrate in the display area; and
a cathode electrode layer including a cathode electrode to which a cathode voltage corresponding to a common voltage is applied,
wherein the subpixel layer includes at least one first transistor having a first characteristic and located in a first area in which the optical device is disposed, and at least one second transistor having a second characteristic and located in a second area in which the optical device is not disposed,
wherein the cathode electrode includes a first portion having a first transmittance in the first area and a second portion having a second transmittance different from the first transmittance in the second area.