US 11,839,114 B2
Organic light emitting display device including reflection electrode and first electrode with dielectric layer therebetween
Doo-Hyun Yoon, Paju-si (KR); Hyoung-Su Kim, Paju-si (KR); Hye-Seon Eom, Paju-si (KR); Jong-Hyeok Im, Paju-si (KR); and Gyung-Min Kim, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Oct. 8, 2020, as Appl. No. 17/066,353.
Claims priority of application No. 10-2019-0125158 (KR), filed on Oct. 10, 2019.
Prior Publication US 2021/0111236 A1, Apr. 15, 2021
Int. Cl. H01L 27/32 (2006.01); H10K 59/121 (2023.01); H10K 50/813 (2023.01); H10K 50/818 (2023.01); H10K 50/852 (2023.01); H10K 50/86 (2023.01); H10K 59/38 (2023.01); H10K 59/122 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/1216 (2023.02) [H10K 50/813 (2023.02); H10K 50/818 (2023.02); H10K 50/852 (2023.02); H10K 50/865 (2023.02); H10K 59/122 (2023.02); H10K 59/38 (2023.02); H10K 2102/3026 (2023.02)] 16 Claims
OG exemplary drawing
 
1. An organic light emitting display device, comprising:
a substrate;
a plurality of pixels on the substrate;
a driving transistor including a gate electrode, a source electrode, and a drain electrode;
a reflection electrode on the driving transistor, the reflection electrode electrically connected to the gate electrode of the driving transistor;
a dielectric layer on the reflection electrode;
a first electrode on the dielectric layer and facing the reflection electrode, the first electrode electrically connected to the source electrode of the driving transistor;
an organic light emitting layer on the first electrode; and
a second electrode on the organic light emitting layer,
wherein each of the plurality of pixels includes first, second and third pixel regions displaying first, second and third colors, respectively, wherein the first, second, and third colors are different from each other,
wherein the first color has a wavelength longer than that of the second color, and the second color has a wavelength longer than that of the third color, and
wherein the dielectric layer of the first pixel region has a thickness greater than that of the dielectric layer of the second pixel region, and the dielectric layer of the second pixel region has a thickness greater than that of the dielectric layer of the third pixel region.