IP Library Granted Patent US 10,712,606
Granted Patent B2
US 10,712,606 · App. 15/855,729 · Granted Jul 14, 2020

Color conversion panel and display device including the same

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Quick Facts
Patent No.
US 10,712,606
App. No.
15/855,729
Granted
Jul 14, 2020
Kind
B2
Abstract

An exemplary embodiment of present disclosure provides a color conversion panel including: a substrate; a plurality of light blocking layers disposed on the substrate; a color conversion layer disposed on the substrate between the plurality of the light blocking layers and including quantum dots; an optical filter layer covering the color conversion layer and the light blocking layers; and a hydrogen blocking layer disposed on one surface of the optical filter layer.

Claims (29)

1. A color conversion panel comprising:

a substrate;

a plurality of light blocking layers disposed on the substrate;

a color conversion layer disposed on the substrate and comprising two color conversion members, each of the two color conversion members being partially disposed between two light blocking layers of the plurality of light blocking layers and including quantum dots;

an optical filter layer covering the color conversion layer and the light blocking layers;

a capping layer disposed between the optical filter layer and the color conversion layer; and

a hydrogen blocking layer disposed on the optical filter layer, made of a transparent conductive material, having a curved structure and covering the color conversion layer and the plurality of light blocking layers, wherein the optical filter layer, the capping layer, and the hydrogen blocking layer are partially disposed inside a gap between the two color conversion members.

2. The color conversion panel of claim 1 , wherein a portion of the hydrogen blocking layer is disposed inside the gap between the two color conversion members and overlaps one of the light blocking layers.

3. The color conversion panel of claim 1 , wherein the hydrogen blocking layer is disposed between the optical filter layer and the color conversion layer.

4. The color conversion panel of claim 1 , wherein the hydrogen blocking layer is disposed on one surface of the optical filter layer corresponding to an opposite side of the color conversion layer.

5. The color conversion panel of claim 1 , wherein the optical filter layer includes a plurality of layers in which inorganic layers having different refractive indexes are alternately stacked.

6. The color conversion panel of claim 5 , wherein the optical filter layer includes: a first inorganic material layer including a silicon nitride; and a second inorganic material layer including a silicon oxide, wherein the first inorganic material layer contacts the color conversion layer and the light blocking layers.

7. The color conversion panel of claim 1 , wherein the hydrogen blocking layer is disposed between the capping layer and the color conversion layer.

8. The color conversion panel of claim 1 , wherein the hydrogen blocking layer is disposed between the capping layer and the optical filter layer.

9. The color conversion panel of claim 1 , wherein the capping layer includes an inorganic material containing nitrogen.

10. A display device comprising:

a display panel including a plurality of pixel electrodes and a common electrode, wherein the common electrode overlaps the plurality of pixel electrodes; and

a color conversion panel disposed at the display panel,

wherein the color conversion panel includes:

a substrate;

a plurality of light blocking layers disposed on the substrate;

at least one color conversion layer disposed on the substrate, overlapping at least one pixel electrode of the plurality of the pixel electrodes, and including quantum dots;

at least one transmissive layer disposed on the substrate and overlapping another pixel electrode of the plurality of the pixel electrodes;

an optical filter layer covering the color conversion layer and the light blocking layer;

a capping layer disposed between the optical filter layer and the color conversion layer; and

a blocking layer electrically insulated from the common electrode, disposed on the at least one transmissive layer and the at least one color conversion layer, made of a transparent conductive material, and having a curved structure, wherein the optical filter layer, the capping layer, and the blocking layer are partially disposed inside a gap between the at least one transmissive layer and the at least one color conversion layer.

11. The display device of claim 10 , wherein the plurality of light blocking layers includes a light blocking layer, wherein the light blocking layer is disposed on a face of the substrate, and wherein a face of the curved structure of the blocking layer is parallel to the face of the substrate, is parallel to a face of the light blocking layer, and is disposed inside the gap between the at least one transmissive layer and the at least one color conversion layer.

12. The display device of claim 10 , wherein the capping layer is disposed between the blocking layer and the optical filter layer.

13. The display device of claim 10 , wherein the capping layer is disposed between the blocking layer and the color conversion layer.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 21, 2022
From: SAMSUNG DISPLAY CO., LTD.
To: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 060778/0543 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2017
From: KIM, JANG-IL; PARK, KEUN WOO; KANG, HOON; KONG, TAE JIN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 044973/0217 →