IP Library › Granted Patent US 11,456,444
Granted Patent B2
US 11,456,444 · App. 16/305,928 · Granted Sep 27, 2022

Display panel, manufacturing method thereof, display device

Inventors: Wanli Dong (Beijing, CN); Youngyik Ko (Beijing, CN)
Assignees: Beijing BOE Technology Development Co., Ltd.; Chengdu BOE Optoelectronics Technology Co., Ltd.
H01L51/5284G02F1/133512H01L51/56G02F1/13338H01L27/323H01L27/3258H01L51/0096H01L51/5253H01L2227/323
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Quick Facts
Patent No.
US 11,456,444
App. No.
16/305,928
Granted
Sep 27, 2022
Kind
B2
Abstract

A display panel, a method for manufacturing the same, and a display device including the display panel are provided. The display panel includes a pixel array and a pigment mixing layer, the pigment mixing layer being located between a pixel driving layer and a light emitting surface of the display panel. The pigment mixing layer includes a mixture formed by a first pigment that absorbs red light, a second pigment that absorbs green light, and a third pigment that absorbs blue light. A proportion of the first pigment in the mixture is 15% to 20%, a proportion of the second pigment in the mixture is 50% to 80%, and a proportion of the third pigment in the mixture is 5% to 20%.

Claims (14)

1. A display panel comprising a pixel array, wherein the display panel further comprises a pigment mixing layer, the pigment mixing layer being located between a pixel driving layer and a light emitting surface of the display panel, and the pigment mixing layer including a mixture formed by a first pigment that absorbs red light, a second pigment that absorbs green light, and a third pigment that absorbs blue light, a proportion of the first pigment in the mixture being 15% to 20%, a proportion of the second pigment in the mixture being 50% to 80%, and a proportion of the third pigment in the mixture being 5% to 20%,

wherein the display panel further comprises a transparent substrate directly carrying the pigment mixing layer, and

wherein the pigment mixing layer has a thickness from 20 μm to 60 μm, and the transparent substrate has a thickness from 5 μm to 30 μm.

2. The display panel according to claim 1 , wherein a material of the transparent substrate includes polyethylene naphthalate.

3. The display panel according to claim 1 , wherein the display panel is an OLED display panel, the transparent substrate and the pigment mixing layer are located above an organic light emitting layer.

4. The display panel according to claim 3 , wherein the OLED display panel further comprises a touch electrode layer and a cover glass, and the transparent substrate and the pigment mixing layer is located between the touch electrode layer and the cover glass.

5. The display panel according to claim 3 , wherein the OLED display panel further comprises a thin film encapsulation for protecting the organic light emitting layer, the transparent substrate and the pigment mixing layer being adjacent to the thin film encapsulation.

6. The display panel according to claim 1 , wherein the display panel is an LCD panel, the pigment mixing layer being located above a color filter substrate of the LCD panel.

7. A display device comprising a display panel, the display panel comprising a pixel array, wherein the display panel further comprises a pigment mixing layer, the pigment mixing layer being located between a pixel driving layer and a light emitting surface of the display panel, and the pigment mixing layer including a mixture formed by a first pigment that absorbs red light, a second pigment that absorbs green light, and a third pigment that absorbs blue light, a proportion of the first pigment in the mixture being 15% to 20%, a proportion of the second pigment in the mixture being 50% to 80%, and a proportion of the third pigment in the mixture being 5% to 20%,

wherein the display panel further comprises a transparent substrate directly carrying the pigment mixing layer, and

wherein the pigment mixing layer has a thickness from 20 μm to 60 μm, and the transparent substrate has a thickness from 5 μm to 30 μm.

8. The display device according to claim 7 , wherein a material of the transparent substrate includes polyethylene naphthalate.

9. The display device according to claim 7 , wherein the display panel is an OLED display panel, the transparent substrate and the pigment mixing layer are located above an organic light emitting layer.

10. The display device according to claim 9 , wherein the OLED display panel further comprises a touch electrode layer and a cover glass, the transparent substrate and the pigment mixing layer being located between the touch electrode layer and the cover glass.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2022
From: BOE TECHNOLOGY GROUP CO., LTD.
To: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
Reel/Frame 060640/0845 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 3, 2018
From: DONG, WANLI; KO, YOUNGYIK
To: BOE TECHNOLOGY GROUP CO., LTD.; CHENGDUE BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 047655/0022 →
Priority Claims (1)
CN 201710506817.X · Jun 28, 2017 · national
Continuity (1)
Related Publication 20210234133A1 · Jul 29, 2021