Granted Patent B2

US 12,593,602 · App. 17/620,718 · Granted Mar 31, 2026

Inventors: Weiran Cao (Shenzhen, CN); Jinchuan Li (Shenzhen, CN); Qingwu Yin (Shenzhen, CN)

Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.

H10K59/877H10K59/873

Abstract

Claims (58)

1 . A display panel, comprising:

a light-emitting device layer;

an encapsulation layer being arranged on a light-emitting side of the light-emitting device layer and covering the light-emitting device layer;

a barrier film arranged on a side of the encapsulation layer away from the light-emitting device layer; and

an adhesive layer arranged between the encapsulation layer and the barrier film;

wherein first scattering particles are distributed in the encapsulation layer, and the barrier film comprises at least two antireflective layers with different refractive indexes,

wherein the antireflective layers comprise a first antireflective layer, a second antireflective layer, and a barrier layer, the first antireflective layer arranged on the side of the encapsulation layer away from the light-emitting device layer, the second antireflective layer arranged on a side of first antireflective layer away from the encapsulation layer, the barrier layer arranged between the first antireflective layer and the second antireflective layer, the barrier layer being a water barrier film layer, and wherein a refractive index of the barrier layer is less than a refractive index of the first antireflective layer, and is greater than a refractive index of the second antireflective layer;

wherein a refractive index of the adhesive layer is less than the refractive index of the first antireflective layer;

wherein second scattering particles are distributed in the adhesive layer, and a refractive index of the second scattering particles is greater than the refractive index of the adhesive layer;

wherein the encapsulation layer is formed by a plurality of inorganic encapsulation layers and a plurality of organic encapsulation layers so that each of the organic encapsulation layers is arranged between two adjacent ones of the plurality of inorganic encapsulation layers, wherein the first scattering particles is uniformly distributed in at least one of the plurality of organic encapsulation layers.

2 . The display panel according to claim 1 , wherein the encapsulation layer comprises:

a first inorganic encapsulation layer arranged on the light-emitting side of the light-emitting device layer;

an organic encapsulation layer arranged on a side of the first inorganic encapsulation layer away from the light-emitting device layer; and

a second inorganic encapsulation layer being arranged at a side of the first inorganic encapsulation layer and covering the organic encapsulation layer;

wherein the first scattering particles are distributed in the organic encapsulation layer.

3 . The display panel according to claim 2 , wherein a refractive index of the first scattering particles is greater than a refractive index of the organic encapsulation layer.

4 . The display panel according to claim 1 , wherein the refractive index of the first antireflective layer is greater than or equal to 1.8, and the refractive index of the second antireflective layer is greater than or equal to 1.3, and less than or equal to 1.6.

5 . The display panel according to claim 1 , wherein the barrier film further comprises a protective layer arranged on a surface of the second antireflective layer away from the barrier layer, wherein the protective layer is made of one or more of PET, COP and PMMA.

6 . The display panel according to claim 1 , wherein a refractive index of each of the organic encapsulation layers is greater than or equal to 1.45 and less than or equal to 1.55.

7 . The display panel according to claim 1 , wherein a refractive index of the first scattering particles is greater than or equal to 1.8 and less than or equal to 2.

8 . The display panel according to claim 1 , wherein the first antireflective layer is made of organosiloxane.

9 . The display panel according to claim 1 , wherein the second antireflective layer is made of polyacrylic resin.

10 . The display panel according to claim 1 , wherein a refractive index of the adhesive layer is greater than or equal to 1.45 and less than or equal to 1.5.

11 . The display panel according to claim 1 , wherein the first scattering particles are made of MgO.

12 . An electronic device, comprising a display panel, wherein the display panel comprises:

a light-emitting device layer;

an encapsulation layer being arranged on a light-emitting side of the light-emitting device layer and covering the light-emitting device layer;

a barrier film arranged on a side of the encapsulation layer away from the light-emitting device layer; and

an adhesive layer arranged between the encapsulation layer and the barrier film;

wherein first scattering particles are distributed in the encapsulation layer, and the barrier film comprises at least two antireflective layers with different refractive indexes,

wherein the antireflective layers comprise a first antireflective layer, a second antireflective layer, and a barrier layer, the first antireflective layer arranged on the side of the encapsulation layer away from the light-emitting device layer, the second antireflective layer arranged on a side of first antireflective layer away from the encapsulation layer, the barrier layer arranged between the first antireflective layer and the second antireflective layer, the barrier layer being a water barrier film layer, and wherein a refractive index of the barrier layer is less than a refractive index of the first antireflective layer, and is greater than a refractive index of the second antireflective layer;

wherein a refractive index of the adhesive layer is less than the refractive index of the first antireflective layer;

wherein second scattering particles are distributed in the adhesive layer, and a refractive index of the second scattering particles is greater than the refractive index of the adhesive layer;

wherein the encapsulation layer is formed by a plurality of inorganic encapsulation layers and a plurality of organic encapsulation layers so that each of the organic encapsulation layers is arranged between two adjacent ones of the plurality of inorganic encapsulation layers, wherein the first scattering particles is uniformly distributed in at least one of the plurality of organic encapsulation layers.

13 . The display panel according to claim 12 , wherein the encapsulation layer comprises:

a first inorganic encapsulation layer arranged on the light-emitting side of the light-emitting device layer;

an organic encapsulation layer arranged on a side of the first inorganic encapsulation layer away from the light-emitting device layer; and

a second inorganic encapsulation layer being arranged at a side of the first inorganic encapsulation layer and covering the organic encapsulation layer;

wherein the first scattering particles are distributed in the organic encapsulation layer.

14 . The display panel according to claim 13 , wherein a refractive index of the first scattering particles is greater than a refractive index of the organic encapsulation layer.

15 . The display panel according to claim 12 , wherein the refractive index of the first antireflective layer is greater than or equal to 1.8, and the refractive index of the second antireflective layer is greater than or equal to 1.3, and less than or equal to 1.6.

16 . A manufacturing method of a display panel, wherein the manufacturing method of the display panel comprises:

forming a light-emitting device layer;

forming an encapsulation layer on a light-emitting side of the light-emitting device layer and covering the light-emitting device layer;

forming a barrier film on a side of the encapsulation layer away from the light-emitting device layer; and

adhering the side of the first antireflective layer away from the barrier layer with the side of the encapsulation layer away from the light-emitting device layer through an adhesive layer;

wherein first scattering particles are distributed in the encapsulation layer, and the barrier film comprises at least two antireflective layers with different refractive indexes,

wherein forming the barrier film comprises forming a first antireflective layer on the side of the encapsulation layer away from the light-emitting device layer, forming a barrier layer on a side of the first antireflective layer away from the encapsulation layer, and forming a second antireflective layer on a side of the barrier layer away from the first antireflective layer,

wherein the barrier layer is a water barrier film layer, and a refractive index of the barrier layer is less than a refractive index of the first antireflective layer, and is greater than a refractive index of the second antireflective layer;

wherein a refractive index of the adhesive layer is less than the refractive index of the first antireflective layer;

wherein second scattering particles are distributed in the adhesive layer, and a refractive index of the second scattering particles is greater than the refractive index of the adhesive layer;

wherein the encapsulation layer is formed by a plurality of inorganic encapsulation layers and a plurality of organic encapsulation layers so that each of the organic encapsulation layers is arranged between two adjacent ones of the plurality of inorganic encapsulation layers, wherein the first scattering particles is uniformly distributed in at least one of the plurality of organic encapsulation layers.

17 . The manufacturing method of the display panel according to claim 16 , wherein the step of forming the encapsulation layer on the light-emitting side of the light-emitting device layer and covering the light-emitting device layer comprises:

forming a first inorganic encapsulation layer on the light-emitting side of the light-emitting device layer;

forming an organic encapsulation layer on a side of the first inorganic encapsulation layer away from the light-emitting device layer; and

forming a second inorganic encapsulation layer at a side of the first inorganic encapsulation layer and covering the organic encapsulation layer;

wherein the first scattering particles are distributed in the organic encapsulation layer.

18 . The manufacturing method of the display panel according to claim 17 , wherein a refractive index of the first scattering particles is greater than a refractive index of the organic encapsulation layer.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (38)