Organic light emitting diode display device and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-10879485-B2
Application number	US-201916576381-A
Country	US
Kind code	B2
Filing date	Sep 19, 2019
Priority date	Dec 1, 2016
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

An organic light emitting diode display device includes a substrate. A first protective layer is disposed on the substrate. A conductive line is disposed on the first protective layer. A second protective layer is disposed on the conductive line. A first electrode is disposed on the second protective layer. An organic light emitting layer is disposed on the first electrode. A second electrode is disposed on the light emitting layer. The first electrode is symmetric with respect to a center of the conductive line.

First claim

What is claimed is:

1. An organic light emitting diode display device comprising:
a substrate;
a first protective layer disposed on the substrate, the first protective layer having a recess disposed therein;
a conductive line disposed within the recess of the first protective layer;
a second protective layer disposed on the conductive line;
a first electrode disposed on the second protective layer, an organic light emitting layer disposed on the first electrode; and
a second electrode disposed on the light emitting layer, wherein the first electrode overlaps the recess of the first protective layer,
wherein a lower surface of the second protective layer is planar above an entirety of a portion of the conductive line, the portion of the conductive line overlapping the first electrode.

2. The organic light emitting diode display device as claimed in claim 1 , wherein the conductive line is a driving voltage line.

3. The organic light emitting diode display device as claimed in claim 1 , wherein a depth of the recess of the first protective layer is substantially equal to a thickness of the conductive line.

4. The organic light emitting diode display device as claimed in claim 1 , wherein a depth of the recess of the first protective layer is different from a thickness of the conductive line.

5. The organic light emitting diode display device as claimed in claim 1 , wherein the conductive line is planar across an entirety thereof.

6. The organic light emitting diode display device as claimed in claim 1 , wherein the conductive line extends in a radial direction, on a plane, with respect to a center of the first electrode.

7. The organic light emitting diode display device as claimed in claim 6 , wherein the conductive line has a crossed lattice shape.

8. The organic light emitting diode display device as claimed in claim 1 , further comprising a thin film transistor disposed between the substrate and the first protective layer.

9. The organic light emitting diode display device as claimed in claim 8 , wherein the thin film transistor is connected to the first electrode.

10. The organic light emitting diode display device as claimed in claim 8 , wherein the thin film transistor is connected to the conductive line.

11. A method of manufacturing an organic light emitting diode display device, the method comprising:
forming a photosensitive material layer on a substrate by applying a photosensitive material onto the substrate;
forming a first protective layer on the substrate by patterning the photosensitive material layer, the first protective layer having a recess and a contact hole therein;
forming a conductive line within the recess of the first protective layer;
forming a second protective layer on the conductive line;
forming a first electrode on the second protective layer, forming a light emitting layer on the first electrode; and
forming a second electrode on the light emitting layer,
wherein the first electrode overlaps the recess of the first protective layer, and
wherein a lower surface of the second protective layer is formed planar above an entirety of a portion of the conductive line, the portion of the conductive line overlapping the first electrode.

12. The method as claimed in claim 11 , wherein forming of the first protective layer comprises exposing the photosensitive material layer with light through a pattern mask.

13. The method as claimed in claim 11 , wherein the conductive line is formed planar across an entirety thereof.

14. The method as claimed in claim 11 , wherein the conductive line is formed having a crossed lattice shape.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Moojong

Classifications

• H10K59/8051

  Anodes · CPC title

• H10K50/805

  Electrodes · CPC title

• H10D86/441

  Interconnections, e.g. scanning lines · CPC title

• H10D86/481 Primary

  integrated with passive devices, e.g. auxiliary capacitors · CPC title

• H10D86/60

  wherein the TFTs are in active matrices · CPC title