US 12,230,745 B2
Display device and method of manufacturing the same
Jun Hong Park, Yongin-si (KR); Tae Gyun Kim, Yongin-si (KR); Jun Chun, Yongin-si (KR); Eui Suk Jung, Yongin-si (KR); and Hyun Young Jung, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Jul. 19, 2023, as Appl. No. 18/355,220.
Application 18/355,220 is a division of application No. 17/082,742, filed on Oct. 28, 2020, granted, now 11,749,788.
Claims priority of application No. 10-2019-0178428 (KR), filed on Dec. 30, 2019.
Prior Publication US 2023/0361257 A1, Nov. 9, 2023
Int. Cl. H01L 33/56 (2010.01); H01L 33/00 (2010.01); H01L 33/38 (2010.01); H01L 33/40 (2010.01)
CPC H01L 33/56 (2013.01) [H01L 33/005 (2013.01); H01L 33/38 (2013.01); H01L 33/40 (2013.01); H01L 2933/0016 (2013.01); H01L 2933/005 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method of manufacturing a display device comprising a pixel circuit layer comprising a plurality of transistors, a first partition wall and a second partition wall on the pixel circuit layer and each protruding in a thickness direction, and a first electrode and a second electrode on the first partition wall and the second partition wall, respectively, the method comprising:
aligning a light emitting element between the first electrode and the second electrode;
forming a first organic layer comprising a first organic pattern directly on the light emitting element; and
forming contact electrodes comprising a first contact electrode in contact with the first electrode and a first end of the light emitting element, and a second contact electrode in contact with the second electrode and a second end of the light emitting element,
wherein the forming of the first organic layer comprises:
forming a first organic material layer that covers the first electrode, the second electrode, and the light emitting element; and
forming a first photo resist material and exposing a portion of the first organic material layer by applying the first photo resist material to the first organic material layer. and irradiating UV or laser light onto a portion of the first photo resist material,
wherein, after the forming of the first photo resist material and exposing, the first organic material layer is separated into the first organic pattern, a second organic pattern, and a third organic pattern, and
wherein the first organic pattern is directly on the light emitting element, the second organic pattern is directly on the second electrode, and the third organic pattern is directly on the first electrode.