Color conversion panel and display device including the same

Patent metadata

Field	Value
Publication number	US-2017076678-A1
Application number	US-201615256359-A
Country	US
Kind code	A1
Filing date	Sep 2, 2016
Priority date	Sep 10, 2015
Publication date	Mar 16, 2017
Grant date	—

Abstract

A color conversion panel includes: a substrate; a plurality of light emitting regions on the substrate; and a light blocking region between adjacent light emitting regions among the plurality of light emitting regions, wherein the light emitting regions respectively comprise: a color filter disposed on the substrate; and a color conversion layer comprising at least one of a phosphor or a quantum dot and a polymer layer overlapping with at least one of the color filter and the substrate, and the light blocking region comprises a partition comprising at least two overlapping color filters of different colors from each other.

First claim

What is claimed is:

1 . A color conversion panel comprising:
a substrate; a plurality of light emitting regions on the substrate; and a light blocking region between adjacent light emitting regions among the plurality of light emitting regions, wherein the light emitting regions respectively comprise:
a color filter disposed on the substrate; and
a color conversion layer comprising at least one of a phosphor or a quantum dot and a polymer layer overlapping with at least one of the color filter and the substrate, and
the light blocking region comprises a partition comprising at least two overlapping color filters of different colors from each other.

2 . The color conversion panel of claim 1 , wherein
a color filter in the light emitting region and a color filter in the light blocking region are connected to each other.

3 . The color conversion panel of claim 2 , wherein
the color filter in the light blocking region and the color filter in the light emitting region that are connected to each other cover one side surface of the color filters having the different colors.

4 . The color conversion panel of claim 1 , wherein
the color filter in the light emitting region and the color filter in the light blocking region have a step.

5 . The color conversion panel of claim 1 , wherein
the color conversion layer comprises a red color conversion layer and a green color conversion layer and at least one among the red color conversion layer, the green color conversion layer, or the polymer layer comprises a scatterer.

6 . The color conversion panel of claim 5 , wherein
the color filter comprises a red color filter, a green color filter, and a blue color filter, and in the light emitting region, the red color filter and the red color conversion layer overlap, the green color filter and the green color conversion layer overlap, and the blue color filter and the polymer layer overlap.

7 . The color conversion panel of claim 6 , wherein
the red color filter, the green color filter, and the blue color filter overlap in the light blocking region, and the blue color filter in the light blocking region is closer to the substrate than the red color filter and the green color filter.

8 . The color conversion panel of claim 5 , wherein
the color filter comprises a red color filter and a green color filter, and in the light emitting region, the red color filter and the red color conversion layer overlap, and the green color filter and the green color conversion layer overlap, and the red color filter, the green color filter, and the polymer layer overlap in the light blocking region.

9 . The color conversion panel of claim 1 , wherein
the polymer layer comprises at least one of a dye or a pigment.

10 . A display device comprising:
a display panel; and a color conversion panel on the display panel, wherein the color conversion panel comprises: a substrate; a plurality of light emitting regions between the substrate and the display panel; and a light blocking region between adjacent light emitting regions among the plurality of light emitting regions, the light emitting regions respectively comprising:
a color filter between the substrate and the display panel; and
a color conversion layer comprising at least one of a phosphor or a quantum dot and a polymer layer between the substrate and the display panel and
the light blocking region comprises a partition made by overlapping at least two color filters having different colors from each other.

11 . The display device of claim 10 , wherein
the color filter in the light emitting region and the color filter disposed in the light blocking region are connected to each other.

12 . The display device of claim 11 , wherein
the color filter in the light emitting region and the color filter in the light blocking region that are connected to each other cover one side surface of the color filters having the different colors.

13 . The display device of claim 10 , wherein
the color filter in the light emitting region and the color filter in the light blocking region have a step.

14 . The display device of claim 10 , wherein
the color conversion layer comprises a red color conversion layer and a green color conversion layer, and at least one of the red color conversion layer, the green color conversion layer, or the polymer layer comprises a scatterer.

15 . The display device of claim 14 , wherein
the color filter comprises a red color filter, a green color filter, and a blue color filter, and in the light emitting region, the red color filter and the red color conversion layer overlap, the green color filter and the green color conversion layer overlap, and the blue color filter and the polymer layer overlap.

16 . The display device of claim 15 , wherein
the red color filter, the green color filter, and the blue color filter overlap in the light blocking region, and the blue color filter in the light blocking region is closer to the substrate than the red color filter and the green color filter.

17 . The display device of claim 14 , wherein
the color filter comprises a red color filter and a green color filter, and in the light emitting region, the red color filter and the red color conversion layer overlap, and the green color filter and the green color conversion layer overlap, and the red color filter, the green color filter, and the polymer layer overlap in the light blocking region.

18 . The display device of claim 10 , wherein
the polymer layer comprises at least one of a dye or a pigment.

19 . The display device of claim 10 , wherein
the display panel comprises: a first insulation substrate; a thin film transistor on the first insulation substrate; a pixel electrode connected to the thin film transistor; a common electrode configured to form an electric field with the pixel electrode; a second insulation substrate overlapping the first insulation substrate to be separated therefrom; and a liquid crystal layer between the first insulation substrate and the second insulation substrate.

20 . The display device of claim 10 , wherein
the display panel comprises: an insulation substrate; a thin film transistor on the insulation substrate; a pixel electrode connected to the thin film transistor; a roof layer overlapping the pixel electrode; and a liquid crystal layer in a plurality of microcavities between the pixel electrode and the roof layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Kwang Keun
• Kim Dong-Uk
• Kim Young Min
• Park Hae Il
• Baek Seung-Jin
• Jo Kun Hee

Classifications

• G09G3/2003

  Display of colours (specific for liquid crystal displays G09G3/3607) · CPC title

• G09G3/3607 Primary

  for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127) · CPC title

• G02F1/1333

  Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence) · CPC title

• G02F1/133514

  Colour filters · CPC title

• G02F1/133603

  with LEDs · CPC title