US 12,268,047 B2
Display device
Sadafumi Hirai, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Nov. 20, 2023, as Appl. No. 18/514,068.
Application 18/514,068 is a continuation of application No. 17/304,489, filed on Jun. 22, 2021, granted, now 11,864,414.
Application 17/304,489 is a continuation of application No. PCT/JP2019/048727, filed on Dec. 12, 2019.
Claims priority of application No. 2010-002536 (JP), filed on Jan. 10, 2019.
Prior Publication US 2024/0090256 A1, Mar. 14, 2024
Int. Cl. H10K 50/844 (2023.01); H10K 50/842 (2023.01); H10K 59/40 (2023.01)
CPC H10K 50/8445 (2023.02) [H10K 50/8428 (2023.02); H10K 59/40 (2023.02)] 5 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate including a display region and a peripheral region surrounding the display region;
a transistor in the display region;
a leveling film covering the transistor in the display region;
a pixel electrode arranged on the leveling film and electrically connected to the transistor;
a partition wall covering an edge portion of the pixel electrode;
a counter electrode covering the pixel electrode and the partition wall;
an EL layer arranged between the pixel electrode and the counter electrode; and
at least one dam arranged in the peripheral region, wherein
the dam surrounds the display region and is spaced away from the leveling film,
the dam comprises a first layer in a same layer as the leveling film, a second layer in a same layer as the partition wall, and a stopper on and in contact with the second layer,
the stopper contains an inorganic material, and
a part of an upper surface of the second layer is exposed from the stopper.