Organic light emitting diode display including penetrated portion

Patent metadata

Field	Value
Publication number	US-9893133-B2
Application number	US-201514726319-A
Country	US
Kind code	B2
Filing date	May 29, 2015
Priority date	Jul 29, 2014
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

An organic light emitting diode (OLED) display includes a substrate including a penetrated portion positioned in a display area for displaying an image and a light emission region neighboring the penetrated portion. The OLED display also includes an OLED positioned on the light emission region of the substrate.

First claim

What is claimed is:

1. An organic light emitting diode (OLED) display comprising:
a substrate comprising a penetrated portion in a display area for displaying an image, a light emission region neighboring the penetrated portion, and a side wall between the light emission region and the penetrated portion;
an OLED on the light emission region of the substrate;
a thin film transistor between the substrate and the OLED and coupled to the OLED, the thin film transistor comprising:
an active layer on the substrate;
a gate electrode on the active layer; and
source and drain electrodes on the gate electrode and coupled to the active layer; and

a first sub-insulating layer between and directly contacting both the substrate and the active layer, the first sub-insulating layer extending from the light emission region onto the side wall of the substrate,
wherein the first sub-insulating layer contacts the side wall of the substrate.

2. The OLED display of claim 1 , wherein the substrate is flexible.

3. The OLED display of claim 2 , wherein the substrate comprises an organic material.

4. The OLED display of claim 1 , wherein the penetrated portion comprises a plurality of penetrated portions, and each of the plurality of penetrated portions is separated from one another.

5. The OLED display of claim 4 , wherein the plurality of penetrated portions are arranged in a matrix form across the substrate.

6. The OLED display of claim 1 , further comprising:
a second sub-insulating layer on the first sub-insulating layer and covering the active layer; and
a third sub-insulating layer on the second sub-insulating layer and covering the gate electrode.

7. The OLED display of claim 6 , wherein
the first sub-insulating layer, the second sub-insulating layer, and the third sub-insulating layer are sequentially laminated on the side wall of the substrate.

8. The OLED display of claim 1 , further comprising a second insulating layer neighboring the OLED, wherein
the second insulating layer extends from the OLED to above the side wall of the substrate.

9. The OLED display of claim 8 , wherein the second insulating layer covers the thin film transistor.

10. The OLED display of claim 9 , wherein the OLED comprises:
a first electrode coupled to the thin film transistor;
an organic emission layer on the first electrode; and
a second electrode on the organic emission layer.

11. The OLED display of claim 10 , wherein the second insulating layer comprises:
a fourth sub-insulating layer between the thin film transistor and the first electrode; and
a fifth sub-insulating layer between the fourth sub-insulating layer and the second electrode.

12. The OLED display of claim 11 , wherein the fourth and fifth sub-insulating layers are sequentially laminated on the side wall of the substrate.

13. The OLED display of claim 1 , further comprising a thin film encapsulation layer on the OLED.

14. The OLED display of claim 13 , wherein the thin film encapsulation layer extends from the OLED to above the side wall of the substrate adjacent the penetrated portion.

15. The OLED display of claim 14 , wherein the thin film encapsulation layer comprises a plurality of layers, and the uppermost one of the plurality of layers comprises an inorganic material.

16. The OLED display of claim 15 , wherein at least one of the plurality of layers of the thin film encapsulation layer is a patterned metal layer.

17. The OLED display of claim 13 , further comprising:
a first polarizer attached to a surface of the thin film encapsulation layer and covering the penetrated portion; and
a second the polarizer attached to a rear side of substrate and covering the penetrated portion.

18. The OLED display of claim 1 , wherein an upper surface of the substrate at the light emission region and the side wall of the substrate form an obtuse angle.

Assignees

• Samsung Display Co Ltd

Inventors

• Park Gyung Soon
• Kim Il Gon

Classifications

• H01L27/326

  Electricity · mapped topic

• H01L51/5281

  Electricity · mapped topic

• H01L2251/5338

  Electricity · mapped topic

• H01L27/3258 Primary

  Electricity · mapped topic

• H01L27/3246

  Electricity · mapped topic