Display apparatus and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-10971664-B2
Application number	US-201916564556-A
Country	US
Kind code	B2
Filing date	Sep 9, 2019
Priority date	Aug 31, 2015
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

A display apparatus includes a substrate; a light-emitting diode on the substrate; a pixel separating layer surrounding the light-emitting diode; and a light dispersion layer on the light-emitting diode and the pixel separating layer.

First claim

What is claimed is:

1. A display device comprising:
a substrate;
a bank layer on the substrate, wherein the bank layer defines an opening;
a light-emitting diode in the opening defined by the bank layer;
a pixel separating layer between a plurality of the light-emitting diodes, wherein the pixel separating layer is disposed on the bank layer and does not overlap the opening when viewed from a plan view in a thickness direction of the substrate; and
a light dispersion layer arranged on the light-emitting diode to cover the bank layer and the pixel separating layer,
wherein the light dispersion layer comprises micro-particles such that the light dispersion layer scatters light emitted from the light-emitting diode.

2. The display device of claim 1 , wherein the pixel separating layer is on the bank layer and has a convex upper surface.

3. The display device of claim 1 , further comprising:
a lens between the light-emitting diode and the light dispersion layer, wherein the lens covers the light-emitting diode and has a convex upper surface.

4. The display device of claim 3 , wherein the pixel separating layer on the bank layer has a concave upper surface.

5. The display device of claim 1 , wherein the pixel separating layer on the bank layer and has a concave upper surface.

6. The display device of claim 1 , further comprising:
an inorganic insulating layer between the light-emitting diode and the light dispersion layer.

7. The display device of claim 6 , further comprising:
a lens between the insulating inorganic layer and the light dispersion layer.

8. The display device of claim 1 , wherein the pixel separating layer comprises a light reflective material.

9. The display device of claim 1 , wherein the pixel separating layer comprises a light-scattering material.

10. The display device of claim 1 , wherein the pixel separating layer comprises a material capable of absorbing at least a portion of light.

11. The display device of claim 1 , further comprising: a first electrode in the opening and connected to one electrode of the light-emitting diode; and a second electrode connected to the other electrode of the light-emitting diode.

12. The display device of claim 11 , further comprising a conductive layer on the bank layer and connected to the second electrode.

13. The display device of claim 12 , wherein the conductive layer is between the bank layer and the pixel separating layer.

14. The display device of claim 1 , wherein the bank layer comprises:
a first bank; and
a second bank on the first bank,
wherein a width of the second bank is less than a width of the first bank in a plan view.

Assignees

• Samsung Display Co Ltd

Inventors

• Kwon Jaejoong
• DO Yunseon
• Cho Chio

Classifications

• H10W90/00 Primary

  Package configurations · CPC title

• H10H20/882

  Scattering means (H10H20/82 takes precedence) · CPC title

• H10H20/0363

  of optical field-shaping means · CPC title

• H10H29/10

  Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00 (active-matrix LED displays H10H29/30) · CPC title

• H10H20/856

  Reflecting means · CPC title