Display apparatus including light control member and manufacturing method of light control member

Patent metadata

Field	Value
Publication number	US-12379629-B2
Application number	US-202418587456-A
Country	US
Kind code	B2
Filing date	Feb 26, 2024
Priority date	Jun 24, 2020
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

A display apparatus includes a display panel; and a light control member disposed on the display panel. The light control member includes a plurality of partition walls spaced apart from each other, and a plurality of light control units each disposed between any two of the plurality of partition walls, and at least one of the plurality of light control units includes a first region containing organic monomers and an inorganic material and a second region containing the inorganic material dispersed in an organic polymer, thereby improving display quality and reliability of the display apparatus.

First claim

What is claimed is:

1. A display apparatus comprising:
a display panel; and
a light control member disposed on the display panel, wherein
the light control member comprises:
at least one partition wall; and
a plurality of light control units surrounded by the partition wall, and

at least one of the plurality of light control units comprises:
a first region including organic monomers and an inorganic material; and
a second region disposed on the first region and including the inorganic material dispersed in an organic polymer.

2. The display apparatus of claim 1 , wherein the inorganic material comprises scattering particles and light emitters.

3. The display apparatus of claim 1 , wherein a concentration of the inorganic material in the first region is greater than a concentration of the inorganic material in the second region.

4. The display apparatus of claim 1 , wherein a ratio of a concentration of the inorganic material in the second region to a concentration of the inorganic material in the first region is in a range of about 1:1.5 to about 1:20.

5. The display apparatus of claim 1 , wherein a ratio of a thickness of the first region in a vertical direction to a thickness of the second region in the vertical direction is in a range of about 1:1 to about 1:200.

6. The display apparatus of claim 5 , wherein
the thickness of the first region is in a range of about 0.1 μm to about 5 μm, and
the thickness of the second region is in a range of about 5 μm to about 20 μm.

7. The display apparatus of claim 2 , wherein with respect to a total volume of the first region,
a volume of the organic monomers of the first region is in a range of about 0.01% to about 10%, and
a volume of the light emitters of the first region is in a range of about 10% to about 99.9%.

8. The display apparatus of claim 2 , wherein with respect to a total volume of the second region,
a volume of the organic polymer of the second region is in a range of about 10% to about 90%, and
a volume of the light emitters of the second region is in a range of about 5% to about 50%.

9. The display apparatus of claim 1 , wherein the organic polymer of the second region is a photocured polymer of the organic monomers.

10. The display apparatus of claim 1 , wherein
the display panel comprises a light emitting element generating first light,
the light control member comprises:
a transmission unit transmitting the first light;
a first light control unit converting the first light into second light; and
a second light control unit converting the first light into third light, and

the first light control unit and the second light control unit comprises the first region and the second region.

11. The display apparatus of claim 10 , wherein
the inorganic material of the first light control unit comprises a first light emitter converting the first light into the second light, and
the inorganic material of the second light control unit comprises a second light emitter converting the first light into the third light.

12. The display apparatus of claim 10 , wherein the transmission unit comprises scatterers dispersed in the organic polymer.

13. A display apparatus comprising:
a display panel generating first light; and
a light control layer disposed on the display panel, wherein
the light control layer comprises:
a first light control unit converting the first light into second light, and

the first light control unit comprises:
a first region including organic monomers and an inorganic material; and
a second region disposed on the first region and including the inorganic material dispersed in an organic polymer.

14. The display apparatus of claim 13 , wherein the display panel comprises:
a light emitting element generating the first light;
an encapsulation member disposed on the light emitting element; and
a capping layer disposed on the encapsulation member and the light control layer.

15. The display apparatus of claim 13 , further comprising a color filter layer disposed on the light control unit, the color filter layer comprising:
a second color filter unit overlapping the first light control unit, blocking the first light, and transmitting the second light.

16. A display apparatus comprising:
a display panel; and
a light control member disposed on the display panel, wherein
the light control member comprises a plurality of light control units, and
at least one of the plurality of light control units comprises:
a first region including organic monomers and an inorganic material; and
a second region disposed on the first region and including the inorganic material dispersed in an organic polymer.

Assignees

• Samsung Display Co Ltd

Inventors

• Kwon Youngsoo
• Kim Soodong
• Kim Jinwon
• Paek Hye-Jin
• Song Taeyoung
• Lee Kiheon

Classifications

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K50/844

  Encapsulations · CPC title

• H10K50/865

  comprising light absorbing layers, e.g. light-blocking layers · CPC title

• H10K50/854

  comprising scattering means · CPC title

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title