Display apparatus

Patent metadata

Field	Value
Publication number	US-11800772-B2
Application number	US-202117167370-A
Country	US
Kind code	B2
Filing date	Feb 4, 2021
Priority date	Feb 7, 2020
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

A display apparatus for providing an image through an array of a plurality of pixels includes: an optical panel which converts light of the light-emitting panel into light of another color or transmit the light of the light-emitting panel. The optical panel includes: a substrate; a plurality of color filters arranged over the substrate; a first light-blocking layer arranged in the non-pixel area; a second light-blocking layer arranged in the non-pixel area and on the first light-blocking layer; and a color-converting layer and a transmission layer each overlapping a corresponding color filter from among the plurality of color filters in a plan view. Each of the first light-blocking layer and the second light-blocking layer defines a plurality of holes corresponding to the plurality of pixels, and a width of a hole of the second light-blocking layer is greater than a width of a hole of the first light-blocking layer.

First claim

What is claimed is:

1. A display apparatus for providing an image through an array of a plurality of pixels apart from each other with a non-pixel area therebetween, the display apparatus comprising:
a light-emitting panel which emits light of a single color; and
an optical panel which converts the light emitted from the light-emitting panel into light of another color or transmits the light of the light-emitting panel,
wherein the optical panel includes:
a substrate;
a plurality of color filters arranged over the substrate;
a first light-blocking layer arranged in the non-pixel area;
a second light-blocking layer arranged in the non-pixel area and on the first light-blocking layer; and
a color-converting layer and a transmission layer each overlapping a corresponding color filter among the plurality of color filters in a plan view,
wherein
each of the first light-blocking layer and the second light-blocking layer defines a plurality of holes corresponding to the plurality of pixels, and a width of a hole of the second light-blocking layer among the plurality of holes is greater than a width of a hole of the first light-blocking layer among the plurality of holes.

2. The display apparatus of claim 1 , wherein the plurality of color filters includes a first color filter, a second color filter, and a third color filter having different colors from each other, and
two or more color filters of the first to third color filters extend to the non-pixel area, and extension portions of the two or more color filters are arranged between the substrate and the first light-blocking layer.

3. The display apparatus of claim 1 , wherein the second light-blocking layer directly contacts the first light-blocking layer, and a stack body including the first light-blocking layer and the second light-blocking layer surround each of the plurality of pixels in the plan view.

4. The display apparatus of claim 3 , wherein the color-converting layer is apart from the transmission layer with respect to the stack body in the plan view.

5. The display apparatus of claim 3 , wherein the color-converting layer contacts the transmission layer on the stack body.

6. The display apparatus of claim 1 , wherein the plurality of color filters includes:
a first color filter overlapping the transmission layer in the plan view;
a second color filter having a color different from the first color filter; and
a third color filter having a color different from each of the first color filter and the second color filter, and
the second color filter defines a first hole overlapping the transmission layer and a portion of the first color filter in the plan view,
wherein the first hole overlaps a second hole of the plurality of holes of the first light-blocking layer.

7. The display apparatus of claim 6 , wherein a width of the second hole is less than a width of the first hole.

8. The display apparatus of claim 6 , wherein the first color filter defines a third hole overlapping a portion of the second color filter in the plan view, the third hole overlaps a fourth hole of the plurality of holes of the first light-blocking layer in the plan view, and
a width of the fourth hole is greater than a width of the third hole.

9. The display apparatus of claim 1 , wherein the light-emitting panel includes an organic light-emitting diode.

10. A display apparatus for providing an image through an array of a plurality of pixels including a first pixel, a second pixel, and a third pixel apart from one another with a non-pixel area therebetween, the display apparatus comprising:
a light-emitting panel including a light-emitting diode; and
an optical panel arranged on the light-emitting panel,
wherein the optical panel includes:
a substrate;
a filter layer arranged on the substrate and including a first color filter, a second color filter, and a third color filter corresponding to the first pixel, the second pixel, and the third pixel, respectively;
a stack body arranged in the non-pixel area and including a first light-blocking layer and a second light-blocking layer; and
a color-converting layer and a transmission layer each arranged in a corresponding pixel of the first to third pixels,
wherein each of the first light-blocking layer and the second light-blocking layer defines a plurality of holes corresponding to the plurality of pixels, and a width of a hole of the second light-blocking layer among the plurality of holes is different from a width of a hole of the first light-blocking layer among the plurality of holes.

11. The display apparatus of claim 10 , wherein each of the first light-blocking layer and the second light-blocking layer includes a material having a color different from colors of the first to third color filters.

12. The display apparatus of claim 10 , wherein the stack body includes a first portion and a second portion,
the second portion is farther from the substrate than the first portion, and a width of the first portion is greater than a width of the second portion.

13. The display apparatus of claim 12 , wherein the first portion includes the first light-blocking layer, and the second portion includes the second light-blocking layer.

14. The display apparatus of claim 10 , wherein two or more color filters of the first to third color filters extend to the non-pixel area, and extension portions of the two or more color filters are arranged between the substrate and the stack body.

15. The display apparatus of claim 10 , wherein the color-converting layer is apart from the transmission layer with respect to the stack body in a plan view.

16. The display apparatus of claim 10 , wherein the color-converting layer contacts the transmission layer on the stack body.

17. The display apparatus of claim 10 , wherein the first color filter overlaps the transmission layer in the first pixel,
the second color filter defines a first hole located in the first pixel, the first hole overlaps a second hole of the plurality of holes of the first light-blocking layer, and
a width of the second hole is less than a width of the first hole.

18. The display apparatus of claim 10 , wherein the color-converting layer includes a first color-converting layer including first quantum dots, and a second color-converting layer including second quantum dots,
the second color filter overlaps the first color-converting layer in the second pixel in a plan view,
the first color filter defines a third hole located in the second pixel, the third hole overlaps a fourth hole of the plurality of holes of the first light-blocking layer, and
a width of the fourth hole is greater than a width of the third hole.

19. The display apparatus of claim 18 , wherein the first quantum dot includes a same material as the second quantum dot and has a size different from a size of the second quantum dot.

20. The display apparatus of claim 11 , wherein the light-emitting panel includes an organic light-emitting diode.

Assignees

• Samsung Display Co Ltd

Inventors

• Oh Keunchan
• Kim Jangsoo
• Park Jaecheol
• Lee Gakseok
• Joo Sunkyu

Classifications

• H10K59/8792

  comprising light absorbing layers, e.g. black layers · CPC title

• H10K59/38 Primary

  comprising colour filters or colour changing media [CCM] · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• G02F1/133514 Primary

  Colour filters · CPC title

• H10K59/353

  characterised by the geometrical arrangement of the RGB subpixels · CPC title