US 11,855,123 B2
Display device
Woongsik Kim, Hwaseong-si (KR); and Saehee Han, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Dec. 10, 2021, as Appl. No. 17/548,000.
Application 17/548,000 is a division of application No. 16/507,046, filed on Jul. 10, 2019, granted, now 11,217,624.
Claims priority of application No. 10-2018-0117271 (KR), filed on Oct. 2, 2018.
Prior Publication US 2022/0102424 A1, Mar. 31, 2022
Int. Cl. H01L 27/15 (2006.01); H01L 33/60 (2010.01); H01L 33/40 (2010.01); H01L 33/44 (2010.01); H01L 33/52 (2010.01)
CPC H01L 27/156 (2013.01) [H01L 33/405 (2013.01); H01L 33/44 (2013.01); H01L 33/52 (2013.01); H01L 33/60 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A display device comprising:
a base layer;
a pixel circuit layer disposed on the base layer and comprising a transistor and insulation layers, each of the insulation layers having a groove;
a first electrode electrically connected to the transistor;
a second electrode spaced apart from the first electrode and configured to receive a power source voltage;
a light emitting element electrically connected to the first electrode and the second electrode and disposed in the groove;
a first refraction layer overlapping an area adjacent to an emission area on which the light emitting element is disposed and having a first refractive index; and
a second refraction layer overlapping the emission area and having a second refractive index larger than the first refractive index.