US 11,943,971 B2
OLED with one color emitting layer on a convex portion
Masamitsu Furuie, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on May 3, 2021, as Appl. No. 17/246,764.
Application 17/246,764 is a continuation of application No. PCT/JP2019/037575, filed on Sep. 25, 2019.
Claims priority of application No. 2018-212367 (JP), filed on Nov. 12, 2018.
Prior Publication US 2021/0257423 A1, Aug. 19, 2021
Int. Cl. H01L 27/32 (2006.01); H01L 51/00 (2006.01); H01L 51/56 (2006.01); H10K 59/122 (2023.01); H10K 59/35 (2023.01); H10K 71/00 (2023.01); H10K 71/16 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 59/352 (2023.02); H10K 71/00 (2023.02); H10K 71/166 (2023.02)] 5 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate including a display region that includes a plurality of pixels;
a first pixel electrode included in one of the plurality of pixels, the first pixel electrode being provided over a surface of the substrate;
a second pixel electrode included in another one of the plurality of pixels, the second pixel electrode being provided over the surface of the substrate;
a first convex portion adjacent to the first pixel electrode;
a second convex portion adjacent to the second pixel electrode;
a first organic layer including a layer exhibiting a first emission color and being stacked on the first pixel electrode; and
a second organic layer including a layer exhibiting a second emission color and being stacked on the second pixel electrode, wherein
each of the first convex portion and the second convex portion is in the display region,
an apex of the first convex portion is farther from the surface of the substrate than an apex of the second convex portion,
the first organic layer is further provided to cover only the first convex portion of the convex portions, and
the second organic layer is provided not to cover any one of the first convex portion and the second convex portion.