IP Library › Granted Patent US 11,362,297
Granted Patent B2
US 11,362,297 · App. 16/662,903 · Granted Jun 14, 2022

Display device

Inventors: Yongchan Ju (Yongin-si, KR); Yisu Kim (Seoul, KR); Jongwoo Kim (Hwaseong-si, KR); Eung Seok Park (Seoul, KR); Wonmin Yun (Yongin-si, KR); Jaeheung Ha (Suwon-si, KR)
Assignee: Samsung Display Co., Ltd.
H01L51/502H01L27/322H01L51/5268H01L27/3244H01L2251/301H01L2251/5369H01L2251/558
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Quick Facts
Patent No.
US 11,362,297
App. No.
16/662,903
Granted
Jun 14, 2022
Kind
B2
Abstract

Provided is a display device. The display device includes a light emitting element layer including a plurality of light emitting elements, and a light control layer on the light emitting element layer and overlapping the light emitting element layer on a plane. At least one of the light emitting elements and the light control layer includes an amorphous carbon light emitter.

Claims (24)

1. A display device comprising:

a light emitting element layer comprising a plurality of light emitting elements; and

a light control layer on the light emitting element layer and overlapping the light emitting element layer on a plane,

wherein at least one of the light emitting elements and the light control layer comprises an amorphous carbon light emitter, and

wherein the plurality of light emitting elements comprise a first light emitting element emitting a first color light, a second light emitting element emitting a second color light, and a third light emitting element emitting a third color light, and

wherein the first light emitting element comprises the amorphous carbon light emitter, and each of the second light emitting element and the third light emitting element comprises a quantum dot.

2. The display device of claim 1 , wherein the first light emitting element comprises a first amorphous carbon light emitter having a size of 1.50 nm or more to 1.65 nm or less.

3. The display device of claim 1 , wherein the first color light is blue light, the second color light is green light, and the third color light is red light.

4. A display device comprising a plurality of light emitting elements, each of the light emitting elements comprising:

a first electrode;

a hole transport area on the first electrode;

a light emitting layer on the hole transport area;

an electron transport area on the light emitting layer, and

a second electrode on the electron transport area,

wherein the plurality of light emitting elements comprise a first light emitting element emitting a first color light, a second light emitting element emitting a second color light, and a third light emitting element emitting a third color light, and

wherein the light emitting layer of the first light emitting element comprises an amorphous carbon light emitter, and the light emitting layer of each of the second light emitting element and the third light emitting element comprises a quantum dot.

5. The display device of claim 4 , wherein the first color light is blue light.

6. A display device comprising:

a display substrate comprising a display area and a non-display area surrounding the display area, the display area comprising:

a first color light emitting area, a second color light emitting area, and a third color light emitting area,

wherein the display substrate further comprises a first light emitting element, a second light emitting element, and a third light emitting element respectively corresponding to the first color light emitting area, the second color light emitting area, and the third color light emitting area,

wherein the first light emitting element comprises a light emitting layer comprising an amorphous carbon light emitter, and each of the second light emitting element and the third light emitting element comprises a light emitting layer comprising a quantum dot.

7. The display device of claim 6 , wherein the first light emitting element emits blue light.

8. The display device of claim 6 , wherein the amorphous carbon light emitter has a size of 1.50 nm or more and 1.65 nm or less.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 24, 2019
From: JU, YONGCHAN; KIM, YISU; KIM, JONGWOO; PARK, EUNG SEOK; YUN, WONMIN; HA, JAEHEUNG
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 050819/0511 →
Priority Claims (1)
KR 10-2019-0018639 · Feb 18, 2019 · national
Continuity (1)
Related Publication 20200266371A1 · Aug 20, 2020
Cited By (1)
US 12,408,529