US 12,419,159 B2
Display device having surface control layer in transmission area
Heemin Park, Hwaseong-si (KR); Joongu Lee, Seoul (KR); Hye Jin Gwark, Suwon-si (KR); Jaeik Kim, Seoul (KR); Jungsun Park, Yongin-si (KR); and Yeonhwa Lee, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Oct. 15, 2021, as Appl. No. 17/502,044.
Claims priority of application No. 10-2020-0134648 (KR), filed on Oct. 16, 2020.
Prior Publication US 2022/0123081 A1, Apr. 21, 2022
Int. Cl. H10K 59/123 (2023.01); H10K 50/17 (2023.01); H10K 50/844 (2023.01); H10K 59/121 (2023.01); H10K 59/122 (2023.01); H10K 59/35 (2023.01); H10K 59/65 (2023.01); H10K 59/80 (2023.01)
CPC H10K 59/123 (2023.02) [H10K 50/844 (2023.02); H10K 59/1213 (2023.02); H10K 59/122 (2023.02); H10K 59/353 (2023.02); H10K 50/171 (2023.02); H10K 59/65 (2023.02); H10K 59/8731 (2023.02)] 27 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate on which a pixel area for displaying an image and a transmission area for transmitting an external light are defined;
a transistor disposed on a surface of the substrate in the pixel area;
a first electrode disposed on the transistor in the pixel area and electrically connected to the transistor;
a pixel defining layer exposing at least a portion of the first electrode;
an emission layer disposed on the first electrode in the pixel area;
a surface control layer disposed on the surface of the substrate in the transmission area;
at least one dam disposed between the pixel area and the transmission area and surrounding the surface control layer to prevent the surface control layer from extending into the pixel area; and
a second electrode disposed on the emission layer,
wherein the at least one dam is spaced apart from the pixel defining layer in a direction parallel to the surface of the substrate, and
wherein the at least one dam does not overlap the surface control layer in a direction perpendicular to the substrate.