IP Library › Granted Patent US 12,379,629
Granted Patent B2
US 12,379,629 · App. 18/587,456 · Granted Aug 5, 2025

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

Inventors: Youngsoo Kwon (Hwaseong-si, KR); Soodong Kim (Hwaseong-si, KR); Jinwon Kim (Hwaseong-si, KR); Hye-Jin Paek (Hwaseong-si, KR); Taeyoung Song (Changwon-si, KR); Kiheon Lee (Hwaseong-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G02F1/133617H10K50/844H10K50/854H10K50/865H10K59/12H10K59/38H10K71/00H10K59/873H10K59/877H10K59/8792
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Quick Facts
Patent No.
US 12,379,629
App. No.
18/587,456
Granted
Aug 5, 2025
Kind
B2
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.

Claims (55)

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.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 27, 2024
From: KWON, YOUNGSOO; KIM, SOODONG; KIM, JINWON; PAEK, HYE-JIN; SONG, TAEYOUNG; LEE, KIHEON
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 066578/0973 →
Priority Claims (1)
KR 10-2020-0077274 · Jun 24, 2020 · national
Continuity (2)
Continuation 17242730 · Apr 28, 2021
Related Publication 20240196691A1 · Jun 13, 2024
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