US 2022/0069029 A1Published application

Light emitting panel and method for manufacturing the same, and display device

AssigneesChengdu Boe Optoelectronics Technology Co., Ltd., Boe Technology Group Co., Ltd.

InventorsXing HUANG, Yanping REN

Life of this patent

Estimating the term…

Loading patent…

Abstract

A light-emitting panel has a light-emitting region and a non-light-emitting region, and at least one portion of a boundary of the light-emitting region is zigzag-shaped. The light-emitting panel includes: a base substrate, sub-pixels disposed in the light-emitting region on the base substrate: a first encapsulation layer disposed on a side of the plurality of sub-pixels away from the base substrate, and at least one first barrier wall disposed on the first encapsulation layer. Orthogonal projections of the sub-pixels on the base substrate are within an orthogonal projection of the first encapsulation layer on the base substrate. The first barrier wall is located in the non-light-emitting region, and is disposed at a side of the at least one zigzag-shaped portion of the boundary of the light-emitting region proximate to the non-light-emitting region. A refractive index of the first barrier wall is greater than a refractive index of the first encapsulation layer.

Claims20

Dependent claims

A light-emitting panel having a light-emitting region and a non-light-emitting region on a periphery of the light-emitting region, at least one portion of a boundary of the light-emitting region being zigzag-shaped, the light-emitting panel comprising:

a base substrate;
a plurality of sub-pixels disposed on a side of the base substrate and located in the light-emitting region;
a first encapsulation layer disposed on a side of the plurality of sub-pixels away from the base substrate, orthogonal projections of the plurality of sub-pixels on the base substrate being within an orthogonal projection of the first encapsulation layer on the base substrate;
and
at least one first barrier wall disposed on a side of the first encapsulation layer away from the base substrate, the first barrier wall being located in the non-light-emitting region, and being disposed at a side of the at least one zigzag-shaped portion of the boundary of the light-emitting region proximate to the non-light-emitting region, wherein
a refractive index of the first barrier wall is greater than a refractive index of the first encapsulation layer;
and the first barrier wall is configured to guide out light propagating in the first encapsulation layer and scatter the light, so that the scattered light is emitted from a light exit surface of the light-emitting panel.

4 more elements

A method for manufacturing a light-emitting panel, the light-emitting panel having a light-emitting region and a non-light-emitting region on a periphery of the light-emitting region, and at least one portion of a boundary of the light-emitting region being zigzag-shaped, the method comprising:

providing a base substrate;
forming a plurality of sub-pixels on a side of the base substrate, the plurality of sub-pixels being located in the light-emitting region;
forming a first encapsulation layer on a side of the plurality of sub-pixels away from the base substrate, orthogonal projections of the plurality of sub-pixels on the base substrate being within an orthogonal projection of the first encapsulation layer on the base substrate;
and
forming at least one first barrier wall on a side of the first encapsulation layer away from the base substrate and beside the at least one zigzag-shaped portion of the boundary of the light-emitting region, the first barrier wall being located in the non-light-emitting region, wherein
a refractive index of the first barrier wall is greater than a refractive index of the first encapsulation layer;
and the first barrier wall is configured to guide out light propagating in the first encapsulation layer and scatter the light, so that the scattered light is emitted from a light exit surface of the light-emitting panel.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/415,015Filed 30 Jul 2020
Priority: CN 201910702199.531 Jul 2019
Published: 3 Mar 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H10K 59/8723
Self-supporting sealing arrangements: vertical spacers, e.g. arranged between the sealing arrangement and the OLED
H10K 59/353
Comprising red-green-blue [RGB] subpixels: characterised by the geometrical arrangement of the RGB subpixels
H10K 59/873
Passivation; Containers; Encapsulations: encapsulations
H10K 59/879
Arrangements for extracting light from the devices: comprising refractive means, e.g. lenses