IP Library Granted Patent US 10,509,253
Granted Patent B2
US 10,509,253 · App. 15/952,733 · Granted Dec 17, 2019

Color conversion panel and display device including the same

Inventor: Kyung-Hun Lee (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G02F1/133504G02F1/133512G02F1/133514G02F1/133553G02F1/133617G02F1/1368
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Quick Facts
Patent No.
US 10,509,253
App. No.
15/952,733
Granted
Dec 17, 2019
Kind
B2
Abstract

A color conversion panel includes a substrate. A first color conversion layer, a second color conversion layer, and a transmission layer are provided on the substrate. A first scatterer layer is provided between the first color conversion layer and the second color conversion layer, A second scatterer layer is provided between the second color conversion layer and the transmission layer. A light filter layer is provided between the first scatterer layer and the first color conversion layer, between the first scatterer layer and the second color conversion layer, between the second scatterer layer and the second color conversion layer, and between the second scatterer layer and the transmission layer.

Claims (38)

1. A color conversion panel comprising:

a substrate;

a first color conversion layer, a second color conversion layer, and a transmission layer provided on the substrate;

a first scatterer layer provided between the first color conversion layer and the second color conversion layer, and a second scatterer layer provided between the second color conversion layer and the transmission layer; and

a light filter layer provided between the first scatterer layer and the first color conversion layer, between the first scatterer layer and the second color conversion layer, between the second scatterer layer and the second color conversion layer, and between the second scatterer layer and the transmission layer.

2. The color conversion panel of claim 1 , further comprising

a reflection layer provided between at least one of the first or second scatterer layers and at least one of the first color conversion layer, the second color conversion layer, or the transmission layer.

3. The color conversion panel of claim 2 , wherein

the reflection layer is provided on at least one side of the first color conversion layer, the second color conversion layer, or the transmission layer, and wherein the reflection layer is not provided on an upper side of the first color conversion layer, the second color conversion layer, or the transmission layer opposite the substrate.

4. The color conversion panel of claim 2 , further comprising

an inner light filter layer provided between the reflection layer and at least one of the first color conversion layer, the second color conversion layer, or the transmission layer.

5. The color conversion panel of claim 1 , further comprising

a blue light cutting filter provided on the substrate, and overlapping the first color conversion layer and the second color conversion layer along a direction orthogonal to an upper surface of the substrate.

6. The color conversion panel of claim 1 , wherein

the first and second scatterer lavers each include at least one of TiO 2 , ZrO 2 , HfO 2 , Ta 2 O 5 , Y 2 O 3 , or ZnO.

7. A display device comprising

a display panel, and

a color conversion panel provided on the display panel,

wherein the color conversion panel includes:

a substrate;

a first color conversion layer, a second color conversion layer, and a transmission layer provided on the substrate;

a first scatterer layer provided between the first color conversion layer and the second color conversion layer, and a second scatterer layer provided between the second color conversion layer and the transmission layer; and

a light filter layer provided between the first scatterer layer and the first color conversion layer, between the first scatterer layer and the second color conversion layer, between the second scatterer layer and the second color conversion layer, and between the second scatterer layer and the transmission layer.

8. The display device of claim 7 , further comprising

a reflection layer provided between at least one of the first or second scatterer layers and at least one of the first color conversion layer, the second color conversion layer, or the transmission layer.

9. The display device of claim 8 , wherein

the reflection layer is provided on at least one side of the first color conversion layer, the second color conversion layer, or the transmission layer, and it is not provided, on an upper side opposite the substrate.

10. The display device of claim 8 , further comprising

an inner light filter layer provided between the reflection layer and the first color conversion layer, between the reflection layer and the second color conversion layer, or between the reflection layer and the transmission layer.

11. The display device of claim 7 , further comprising

an inner scattering layer provided between the first color conversion layer and the light filter layer, between the second color conversion layer and the light filter layer, or between the transmission layer and the light filter layer.

12. A color conversion panel comprising:

a substrate;

a first color conversion layer, a second color conversion layer, and a transmission layer positioned above the substrate, wherein each of the first color conversion layer, the second color conversion layer, and the transmission layer have angled sidewalls with respect an upper surface of the substrate;

a blue light cutting filter disposed on the substrate between the first color conversion layer and the substrate, and between the second color conversion layer and the substrate;

a light filter layer disposed on the angled sidewalls of each of the first color conversion layer, the second color conversion layer, and the transmission layer; and

a first scatterer layer positioned between the first color conversion layer and the second color conversion layer, and a second scatterer layer positioned between the second color conversion layer and the transmission layer.

13. The color conversion panel of claim 12 , further comprising a first light blocking layer disposed on the substrate between the substrate and the first scatterer layer, and a second light blocking layer disposed on the substrate between the substrate and the second scatterer layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 13, 2018
From: LEE, KYUNG-HUN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 045535/0890 →
Priority Claims (1)
KR 10-2017-0116531 · Sep 12, 2017 · national
Continuity (1)
Related Publication 20190079341A1 · Mar 14, 2019
Cited By (1)
US 12,235,538