Organic light emitting display device

Patent metadata

Field	Value
Publication number	US-9564611-B2
Application number	US-201514662875-A
Country	US
Kind code	B2
Filing date	Mar 19, 2015
Priority date	Sep 1, 2014
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

An organic light emitting display device includes a first substrate, a light emitting structure, a light transmitting member, and a second substrate. The first substrate includes a pixel region and a transparent region. The light emitting structure is positioned in the pixel region of the first substrate. The light transmitting member is positioned in the transparent region. The second substrate is disposed on the light emitting structure and the light transmitting member. The light is not refracted in interfaces between the light transmitting member and the first substrate and between the light transmitting member and the second substrate.

First claim

What is claimed is:

1. An organic light emitting display device, comprising:
a first substrate comprising a pixel region and a transparent region;
a light emitting structure disposed in the pixel region of the first substrate;
a light transmitting member disposed in the transparent region of the first substrate; and
a second substrate disposed on the light emitting structure and the light transmitting member,
wherein light is not refracted in interfaces between the light transmitting member and the first substrate and between the light transmitting member and the second substrate.

2. The organic light emitting display device of claim 1 , wherein the light transmitting member contacts the first substrate and the second substrate.

3. The organic light emitting display device of claim 1 , wherein the refractive indices of the first substrate, the light transmitting member, and the second substrate are the same.

4. The organic light emitting display device of claim 1 , wherein the refractive indices of the first substrate, the light transmitting member, and the second substrate are in a range of 1.4 to 1.6.

5. The organic light emitting display device of claim 1 , wherein the light transmitting member comprises at least one selected from polyimide, photoresist, acryl, polyamide, and siloxane.

6. The organic light emitting display device of claim 1 , wherein the first substrate and the second substrate comprise non-alkali materials.

7. The organic light emitting display device of claim 1 , wherein the light transmitting member comprises:
a first light transmitting layer; and
a second light transmitting layer,
wherein the first light transmitting layer and the second light transmitting layer are interposed between the first substrate and the second substrate.

8. The organic light emitting display device of claim 7 , wherein the first light transmitting layer and the second light transmitting layer comprise the same material.

9. The organic light emitting display device of claim 7 , wherein the first light transmitting layer and the second light transmitting layer are integrally formed.

10. The organic light emitting display device of claim 7 , wherein the second light transmitting layer is disposed on the first light transmitting layer.

11. The organic light emitting display device of claim 10 , wherein a light is not refracted in an interface between the first light transmitting layer and the second light transmitting layer.

12. The organic light emitting display device of claim 7 , wherein the refractive indices of the first substrate, the first light transmitting layer, the second light transmitting layer, and the second substrate are the same.

13. The organic light emitting display device of claim 1 , wherein the light emitting structure comprises:
semiconductor elements;
a plurality of insulating layers;
a pixel defining layer;
a first electrode;
an emission layer;
and a second electrode.

14. The organic light emitting display device of claim 13 , wherein the light transmitting member comprises at least one insulating layer disposed in the transparent region.

15. The organic light emitting display device of claim 14 , wherein the at least one insulating layer has the same refractive index as the light transmitting member.

16. The organic light emitting display device of claim 13 , further comprising a color filter and a black matrix disposed on a lower surface of the second substrate.

17. The organic light emitting display device of claim 16 ,
wherein the color filter overlaps the emission layer, and
wherein the black matrix overlaps the pixel defining layer.

18. The organic light emitting display device of claim 1 , further comprising a transparent member interposed between the light emitting structure and the second substrate in the pixel region.

19. The organic light emitting display device of claim 18 , wherein the transparent member and the light transmitting member comprise the same material.

20. The organic light emitting display device of claim 19 , wherein the transparent member and the light transmitting member are integrally formed.

Assignees

• Samsung Display Co Ltd

Inventors

• Moon Jung-Woo
• Kim Joon-Youp
• Kim Kyung-Ho
• Chung Jin-Koo
• Choi Jun-Ho

Classifications

• H10K59/122

  Pixel-defining structures or layers, e.g. banks · CPC title

• H10K59/121 Primary

  characterised by the geometry or disposition of pixel elements · CPC title

• H10K50/85

  Arrangements for extracting light from the devices · CPC title

• H10K50/8428

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

• H10K59/878

  comprising reflective means · CPC title