Organic light emitting display device

Patent metadata

Field	Value
Publication number	US-10910593-B2
Application number	US-201916275645-A
Country	US
Kind code	B2
Filing date	Feb 14, 2019
Priority date	Apr 20, 2018
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

An organic light emitting display device includes: a first substrate; a plurality of pixels on the first substrate, each of the pixels including a corresponding portion of an organic light emitting layer on the first substrate; an encapsulation film on the organic light emitting layer; a protruding pattern layer on the encapsulation film and comprising a plurality of spacers at a boundary between adjacent ones of the pixels; an adhesive layer on the protruding pattern layer; and a second substrate on the adhesive layer.

First claim

What is claimed is:

1. An organic light emitting display device comprising:
a first substrate;
a plurality of pixels on the first substrate, each of the pixels comprising a corresponding portion of an organic light emitting layer on the first substrate;
a color filter on the pixels;
an encapsulation film on the organic light emitting layer;
a protruding pattern layer on the encapsulation film and comprising a plurality of spacers between adjacent ones of the pixels and protruding away from the pixels in a direction normal to the first substrate;
an adhesive layer on the protruding pattern layer; and
a second substrate on the adhesive layer,
wherein the protruding pattern layer is between the adhesive layer and the encapsulation film, and
wherein the color filter is between the protruding pattern layer and the pixels.

2. The organic light emitting display device of claim 1 , wherein the protruding pattern layer comprises a relaxation portion under the spacers, and
wherein the spacers are physically connected to each other through the relaxation portion.

3. The organic light emitting display device of claim 2 , wherein the relaxation portion covers the pixels, and
wherein the protruding pattern layer comprises a transparent material.

4. The organic light emitting display device of claim 3 , further comprising:
a black matrix on the encapsulation film along a boundary between the adjacent ones of the pixels, the black matrix having openings exposing the pixels,
wherein the color filter is in the openings in the black matrix.

5. The organic light emitting display device of claim 4 , wherein the protruding pattern layer is on the black matrix and the color filter.

6. The organic light emitting display device of claim 5 , wherein a lower surface of the adhesive layer contacts the relaxation portion and the spacers of the protruding pattern layer.

7. The organic light emitting display device of claim 2 , wherein the spacers have a thickness in a range of 1 μm to 3 μm.

8. The organic light emitting display device of claim 1 , wherein the adhesive layer comprises an optical clear adhesive or an optical clear resin, and
wherein the spacers penetrate into the adhesive layer.

9. The organic light emitting display device of claim 1 , wherein adjacent ones of the spacers are spaced from each other.

10. The organic light emitting display device of claim 9 , further comprising:
a black matrix on the encapsulation film along a boundary between the adjacent ones of the pixels,
wherein the spacers are on the black matrix.

11. The organic light emitting display device of claim 10 , wherein a lower surface of the adhesive layer contacts the spacers and the black matrix.

12. The organic light emitting display device of claim 1 , wherein the pixels have a rectangular shape, and
wherein each of the spacers is at a corner of one of the pixels.

13. The organic light emitting display device of claim 1 , further comprising a touch member between the encapsulation film and the protruding pattern layer.

14. The organic light emitting display device of claim 13 , wherein the touch member comprises a sensing electrode directly on the encapsulation film.

15. The organic light emitting display device of claim 14 , further comprising:
a black matrix on the touch member along a boundary between the adjacent ones of the pixels, the black matrix having openings exposing the pixels,
wherein the color filter is in the openings.

16. The organic light emitting display device of claim 15 , wherein the touch member comprises an insulating film covering the sensing electrode, and
wherein the black matrix and the color filter contact the insulating film.

17. The organic light emitting display device of claim 1 , further comprising:
a first electrode between the first substrate and the organic light emitting layer; and
a second electrode between the organic light emitting layer and the encapsulation film.

18. An organic light emitting display device comprising:
a first substrate;
a plurality of pixels on the first substrate, each of the pixels comprising a corresponding portion of an organic light emitting layer on the first substrate;
an encapsulation film on the organic light emitting layer;
a black matrix on the encapsulation film along a boundary between adjacent ones of the pixels, the black matrix having openings exposing the pixels;
a color filter in the openings in the black matrix and extending onto a surface of the black matrix facing away from the plurality of pixels to overlap the black matrix;
an adhesive layer on the black matrix and the color filter, a lower surface of the adhesive layer contacting the black matrix and the color filter; and
a second substrate on the adhesive layer,
wherein the black matrix and the color filter are between the adhesive layer and the encapsulation film, and
wherein a portion of the color filter extending onto the surface of the black matrix protrudes above a surface of a portion of the color filter in the openings in a direction normal to the first substrate.

19. The organic light emitting display device of claim 18 , wherein a protruding height of the portion of the color filter extending onto the surface of the black matrix is in a range of 1 μm to 3 μm.

20. The organic light emitting display device of claim 18 , further comprising:
a touch member on the encapsulation film, the touch member comprising a sensing electrode directly on the encapsulation film and an insulating film covering the sensing electrode,
wherein the black matrix and the color filter contact the insulating film.

Assignees

• Samsung Display Co Ltd

Inventors

• Joo Sun Kyu
• Kim Byung Chul
• Kim In Ok
• Oh Keun Chan
• Jang Chang Soon
• Song In Seok
• Lee Gak Seok

Classifications

• H10K59/8792

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

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K59/8723 Primary

  Vertical spacers, e.g. arranged between the sealing arrangement and the OLED · CPC title

• H10K59/8722

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K50/8428

  Vertical spacers, e.g. arranged between the sealing arrangement and the OLED · CPC title