IP Library Granted Patent US 9,564,612
Granted Patent B2
US 9,564,612 · App. 14/056,391 · Granted Feb 7, 2017

Organic light emitting display

Inventor: Won Sang Park (Gyeonggi-do, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H01L51/5271H01L51/5209H01L51/5218H01L51/5221H01L51/5225H01L27/3244H01L51/5284H01L2251/5315
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Quick Facts
Patent No.
US 9,564,612
App. No.
14/056,391
Granted
Feb 7, 2017
Kind
B2
Abstract

An organic light emitting display includes a first substrate, a first electrode, a second electrode, a second substrate, and an organic light emitting layer. The first electrode is disposed on the substrate. The second electrode is disposed on the first electrode. The second substrate is disposed on the second electrode. The organic light emitting layer is interposed between the first electrode and the second electrode. The first electrode and the second electrode are reflective. The first electrode and the second electrode are configured to guide light emitted from the organic light emitting layer to the first substrate or the second substrate.

Claims (62)

1. An organic light emitting display, comprising:

a first substrate;

a first electrode disposed on the first substrate;

a second electrode disposed on the first electrode;

a second substrate disposed on the second electrode; and

an organic light emitting layer interposed between the first electrode and the second electrode,

wherein the first electrode and the second electrode are reflective,

wherein the second electrode includes a first opening passing through the second electrode,

wherein a first reflective surface of the first electrode and a second reflective surface of the second electrode are configured to guide light emitted from the organic light emitting layer to the first opening,

wherein a portion of the organic light emitting layer is disposed within the first opening and the light passes through the organic light emitting layer disposed within the first opening,

wherein the portion of the organic light emitting layer partially fills the first opening, and

wherein the organic light emitting layer is in direct contact with the first electrode and the second electrode.

2. The organic light emitting display of claim 1 , further comprising:

an insulating layer interposed between the first substrate and the first electrode, the insulating layer including a recess,

wherein the first electrode, the second electrode, and the organic light emitting layer are formed on the recess.

3. The organic light emitting display of claim 2 ,

wherein the first electrode is formed on a side of the recess, the first electrode guiding the light to the second substrate through the first opening.

4. The organic light emitting display of claim 1 , further comprising:

an insulating layer interposed between the first substrate and the first electrode, a reflective barrier rib disposed on the insulating layer and enclosing the organic light emitting layer that is contact with the first electrode and the second electrode, wherein the reflective barrier rib guides the light toward the second substrate through the first opening.

5. The organic light emitting display of claim 1 , further comprising:

a light absorbing layer disposed on the second electrode, wherein the light absorbing layer includes a second opening disposed on the first opening.

6. The organic light emitting display of claim 5 ,

wherein the light absorbing layer includes a black matrix.

7. The organic light emitting display of claim 5 ,

wherein the second opening encloses the organic light emitting layer that is in contact with the first electrode and the second electrode.

8. The organic light emitting display of claim 1 , further comprising:

an insulating layer interposed between the first substrate and the first electrode;

a pixel defined film disposed on the insulating layer and the first electrode,

wherein the pixel defined film includes a third opening exposing a part of the first electrode, wherein the second electrode is disposed on the third opening.

9. The organic light emitting display of claim 8 ,

wherein the second electrode formed on an inclined side of the pixel defined film guides the light toward the first substrate.

10. The organic light emitting display of claim 1 , further comprising:

an insulating layer interposed between the first substrate and the first electrode, the insulating layer including a protrusion toward the second substrate, wherein the first electrode, the second electrode, and the organic light emitting layer are formed on the protrusion.

11. The organic light emitting display of claim 10 ,

wherein the second electrode formed on a side of the protrusion guides the light toward the first substrate.

12. The organic light emitting display of claim 1 ,

wherein the first electrode includes a rugged surface, the rugged surface facing the organic light emitting layer.

13. An organic light emitting display, comprising:

a first substrate;

a first electrode disposed on the first substrate;

a second electrode disposed on the first electrode;

a second substrate disposed on the second electrode; and

an organic light emitting layer interposed between the first electrode and the second electrode,

wherein the first electrode and the second electrode are reflective, and the second electrode includes a first opening passing through the second electrode and exposing a portion of the organic light emitting layer,

wherein the portion of the organic light emitting layer is disposed within the first opening and the light passes through the organic light emitting layer disposed within the first opening,

wherein the portion of the organic light emitting layer partially fills the first opening, and

wherein the organic light emitting layer is in direct contact with the first electrode and the second electrode.

14. The organic light emitting display of claim 13 ,

wherein the first electrode includes an inclined side configured to guide light emitted from the organic light emitting layer to the second substrate through the first opening.

15. The organic light emitting display of claim 13 , further comprising: a light absorbing layer disposed on the second electrode, wherein the light absorbing layer includes a second opening disposed on the first opening, wherein the light passes through the second opening.

16. An organic light emitting display, comprising:

a first substrate;

a light absorbing layer disposed on the first substrate, wherein the light absorbing layer includes a first opening;

a first electrode disposed on the light absorbing layer;

a second electrode disposed on the first electrode, wherein the second electrode includes an inclined side; and

an organic light emitting layer interposed between the first electrode and the second electrode,

wherein the first electrode and the second electrode are reflective, and the inclined side of the second electrode overlaps the first opening, thereby light emitted from the organic light emitting layer being guided to the first substrate through the first opening.

17. The organic light emitting display of claim 16 ,

wherein the first electrode and the second electrode defines a second opening disposed on the first opening of the light absorbing layer,

wherein the inclined side of the second electrode guides the light through the second opening to the first opening, and

wherein the light passing through the second opening arrives to the first opening without reflection.

18. The organic light emitting display of claim 16 , further comprising a pixel defined film including an inclined side, wherein the inclined side of the second electrode is formed on the inclined side of the pixel defined film.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 17, 2013
From: PARK, WON SANG
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 031426/0790 →
Priority Claims (1)
KR 10-2013-0076464 · Jul 1, 2013 · national
Continuity (1)
Related Publication 20150001474A1 · Jan 1, 2015