Display apparatus

Patent metadata

Field	Value
Publication number	US-10845518-B2
Application number	US-201916421317-A
Country	US
Kind code	B2
Filing date	May 23, 2019
Priority date	Sep 16, 2014
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

A display apparatus for displaying an image to a user includes: a display panel configured to generate visible light; and an optical functional layer including: a matrix mixed with a plurality of optical functional particles that are colored, wherein the optical functional layer is at a side of the display panel such that at least a part of the visible light from the display panel would pass through the optical functional layer.

First claim

What is claimed is:

1. A display apparatus for displaying an image to a user, the display apparatus comprising:
a display panel configured to generate visible light, the display panel comprising a first sub-pixel configured to emit light of a first color and a second sub-pixel configured to emit light of a second color different from the first color; and
an optical functional layer arranged apart from the first sub-pixel and the second sub-pixel, the first sub-pixel being configured to emit the light of the first color to the optical functional layer, and the second sub-pixel being configured to emit the light of the second color to the optical functional layer, the optical functional layer being configured to receive the light of the first color and the light of the second color, the optical functional layer comprising:
a matrix mixed with a plurality of optical functional particles that are colored,
wherein the optical functional layer is at a side of the display panel such that at least a part of the visible light from the display panel would pass through the optical functional layer,
wherein the plurality of optical functional particles comprises at least first optical functional particles and second optical functional particles, each overlapping the first sub-pixel and the second sub-pixel, and
wherein the first optical functional particles are configured to absorb the light of the first color and to transmit and diffuse the light of the second color, and the second optical functional particles are configured to absorb the light of the second color and to transmit and diffuse the light of the first color.

2. The display apparatus of claim 1 , wherein the plurality of optical functional particles are configured to absorb visible light of at least one color, and to transmit or diffuse visible light of other colors, from among the visible light generated by the display panel.

3. The display apparatus of claim 1 , wherein the plurality of optical functional particles have a same tint as at least one color of visible light generated by the display panel.

4. The display apparatus of claim 1 , wherein the plurality of optical functional particles comprises a chromatic material of one color and/or a chromatic material of an other color.

5. The display apparatus of claim 4 , wherein the chromatic material of the one color and/or the chromatic material of the other color comprises a dye material.

6. The display apparatus of claim 4 , wherein the chromatic material of the one color and the chromatic material of the other color are mixed with each other.

7. The display apparatus of claim 4 , wherein the chromatic material of the one color and/or the chromatic material of the other color is formed on surfaces of the plurality of optical functional particles.

8. The display apparatus of claim 4 , wherein the chromatic material of the one color and/or the chromatic material of the other color is formed inside the plurality of optical functional particles.

9. The display apparatus of claim 4 , wherein the chromatic material of the one color and the chromatic material of the other color have different colors selected from among red, green, and blue.

10. The display apparatus of claim 1 ,
wherein the first optical functional particles comprise a first chromatic material of a first color or a second chromatic material of a second color that is different from the first color of the first chromatic material, and
wherein the second optical functional particles comprise a chromatic material of the first color of the first chromatic material or a chromatic material of a third color that is different from the first color of the first chromatic material.

11. The display apparatus of claim 10 ,
wherein the plurality of optical functional particles further comprises third optical functional particles, and
wherein the third optical functional particles comprise a chromatic material of the second color of the second chromatic material or a chromatic material of the third color.

12. The display apparatus of claim 11 , wherein the first color of the first chromatic material, the second color of the second chromatic material, and the third color are respectively red, green, and blue.

13. The display apparatus of claim 12 ,
wherein the first optical functional particles comprise a red dye material and a green dye material,
wherein the second optical functional particles comprise a red dye material and a blue dye material, and
wherein the third optical functional particles comprise a green dye material and a blue dye material.

14. The display apparatus of claim 1 , further comprising optical functional particles that are transparent or white.

15. The display apparatus of claim 1 , wherein the matrix comprises an organic material.

16. The display apparatus of claim 1 , further comprising:
a polarization layer on the optical functional layer,
wherein the optical functional layer is between the display panel and the polarization layer, and
wherein the matrix contacts the polarization layer and the display panel.

17. The display apparatus of claim 1 ,
wherein the display panel comprises at least one display device, and
wherein the at least one display device comprises:
a first electrode,
a second electrode, and
an intermediate layer between the first electrode and the second electrode and configured to generate visible light.

18. A display apparatus for displaying an image to a user, the display apparatus comprising:
a display panel comprising a plurality of subpixels comprising a first subpixel configured to emit light of a first color and a second subpixel configured to emit light of a second color different from the first color; and
an optical functional layer arranged apart from the first subpixel and the second subpixel, the first subpixel being configured to emit the light of the first color to the optical functional layer, and the second subpixel being configured to emit the light of the second color to the optical functional layer, the optical functional layer being configured to receive the light of the first color and the light of the second color, the optical functional layer comprising a matrix mixed with a plurality of optical functional particles that are colored, wherein the optical functional layer is configured to
absorb visible light generated by at least one subpixel of the plurality of subpixels; and to
transmit or diffuse visible light generated by another subpixel of the plurality of subpixels,
wherein the plurality of optical functional particles comprises at least first optical functional particles and second optical functional particles, each overlapping the first subpixel and the second subpixel, and
wherein the first optical functional particles are configured to absorb the light of the first color and to transmit and diffuse the light of the second color, and the second optical functional particles are configured to absorb the light of the second color and to transmit and diffuse the light of the first color.

19. The display apparatus of claim 18 ,
wherein the plurality of subpixels further comprises:
a third subpixel,
wherein the first subpixel, the second subpixel and the third subpixel are configured to generate visible light of different colors;

wherein the plurality of optical functional particles further comprises:
third optical functional particles,

wherein the first optical functional particles are configured to absorb visible light generated by the first subpixel and the second subpixel a

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Gyeongim
• Ma Jangseok
• Baik Namseok
• Son Junghee
• An Sangwoo
• Lee Dukjin

Classifications

• G02B5/0294

  adapted to provide an additional optical effect, e.g. anti-reflection or filter · CPC title

• G02B5/0242

  by means of dispersed particles · CPC title

• G02B5/206 Primary

  comprising particles embedded in a solid matrix · CPC title