US 12,237,439 B2
Display device
Euijoon Yoon, Seoul (KR); Jongmyeong Kim, Uiwang-si (KR); Jehong Oh, Seoul (KR); Seungmin Lee, Seoul (KR); and Jungel Ryu, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Apr. 22, 2021, as Appl. No. 17/238,163.
Claims priority of application No. 10-2020-0049141 (KR), filed on Apr. 23, 2020; application No. 10-2020-0049151 (KR), filed on Apr. 23, 2020; and application No. 10-2021-0013033 (KR), filed on Jan. 29, 2021.
Prior Publication US 2021/0336084 A1, Oct. 28, 2021
Int. Cl. H01L 33/18 (2010.01); H01L 25/075 (2006.01); H01L 33/24 (2010.01); H01L 33/32 (2010.01); H01L 33/62 (2010.01)
CPC H01L 33/18 (2013.01) [H01L 25/0753 (2013.01); H01L 33/24 (2013.01); H01L 33/32 (2013.01); H01L 33/62 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A display device, comprising:
a plurality of pixels;
a light emitting device provided in each of the plurality of pixels, the light emitting device having a first surface and a second surface, which are opposite to each other;
a first electrode electrically connected to the first surface of the light emitting device;
a second electrode electrically connected to the second surface of the light emitting device; and
a metal oxide pattern interposed between the second surface of the light emitting device and the second electrode,
wherein the metal oxide pattern comprises a first region and a second region,
the first region encloses the second region,
the second region has a contact hole exposing at least a portion of the second surface,
the second electrode is coupled to the second surface through the contact hole, and
the first region and the second region have crystalline phases different from each other.