US 12,471,437 B2
Display device
Takahiro Ushikubo, Tokyo (JP)
Assigned to Magnolia White Corporation, Tokyo (JP)
Filed by Magnolia White Corporation, Tokyo (JP)
Filed on Nov. 22, 2022, as Appl. No. 17/991,849.
Claims priority of application No. 2021-191564 (JP), filed on Nov. 25, 2021.
Prior Publication US 2023/0165034 A1, May 25, 2023
Int. Cl. H10K 50/813 (2023.01); H10K 50/822 (2023.01); H10K 59/12 (2023.01)
CPC H10K 50/813 (2023.02) [H10K 50/822 (2023.02); H10K 59/12 (2023.02)] 10 Claims
OG exemplary drawing
 
1. A display device comprising:
a first pixel electrode;
a second pixel electrode arranged separately from the first pixel electrode in a first direction;
an insulating layer covering the first pixel electrode and the second pixel electrode, the insulating layer including a first opening part and a second opening part, the first opening part exposing at least a part of an upper surface of the first pixel electrode, and the second opening part exposing at least a part of an upper surface of the second pixel electrode;
a first common layer arranged above the first pixel electrode, the second pixel electrode and the insulating layer;
a first light-emitting layer arranged above the first common layer, the first light-emitting layer being arranged at a position overlapping the first pixel electrode;
a second light-emitting layer arranged above the first common layer, the second light-emitting layer being arranged at a position overlapping the second pixel electrode;
an opposite electrode arranged above the first light-emitting layer and the second light-emitting layer; and
a carrier absorption layer arranged above the insulating layer, the carrier absorption layer being arranged between the first common layer and the second light-emitting layer,
wherein a light emission start voltage of the second light-emitting layer is lower than a light emission start voltage of the first light-emitting layer.