Display device with micro cover layer and manufacturing method for the same

Patent metadata

Field	Value
Publication number	US-10115928-B2
Application number	US-201815936359-A
Country	US
Kind code	B2
Filing date	Mar 26, 2018
Priority date	Aug 31, 2014
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

There is provided a flexible display having a plurality of innovations configured to allow bending of a portion or portions to reduce apparent border size and/or utilize the side surface of an assembled flexible display.

First claim

What is claimed is:

1. A flexible OLED display, comprising:
a substrate including a display area and including a non-display area having a first routing area, a second routing area and a bend allowance area between the first and second routing areas;
a wire trace routed from the first routing area to the second routing area of the substrate;
a notched edge of the substrate corresponding to a routing direction of the wire trace;
a notched edge etched area and a stripe structure between the wire trace and the notched edge of the substrate; and
an organic layer that coats the notched edge etched area and the stripe structure in the bend allowance area.

2. The flexible OLED display of claim 1 , wherein the notched edge of the substrate has a curved shape.

3. The flexible OLED display of claim 1 , wherein the stripe structure between the wire trace and the notched edge etched area.

4. The flexible OLED display of claim 3 , wherein the stripe structure comprises a stack of multiple inorganic insulation layers.

5. The flexible OLED display of claim 3 , wherein the stripe structure comprises at least one of an organic insulation layer and at least one of an inorganic insulation layer.

6. The flexible OLED display of claim 1 , wherein the bend allowance area is hidden from view with respect to a user who interact with the display area.

7. The flexible OLED display of claim 1 , wherein the organic coating layer has an uneven surface.

8. The flexible OLED display of claim 1 , further comprising a pad of driving components in the second routing area.

9. The flexible OLED display of claim 1 , further comprising a touch sensing layer located above the display area and extending into at least a portion of the first routing area.

10. The flexible OLED display of claim 9 , wherein the touch sensor layer includes a layer formed of one or more deformable dielectric materials.

11. A flexible display apparatus, comprising:
a base layer including a display area and a non-display area having a routing area and a notched inactive area, the notched inactive area defined by a notched line and including a bend allowance area;
a wire trace in the routing area and the notched area;
an insulation layer etched area and a stripe structure in the notched inactive area along with the wire trace; and
an organic layer covering at least portion of the notched inactive area and at least portion of the routing area.

12. The flexible display apparatus of claim 11 , wherein the organic layer has an uneven surface.

13. The flexible display apparatus of claim 11 , wherein a thickness of the organic layer is thicker than a thickness of the base layer.

14. The flexible display apparatus of claim 11 , wherein the organic layer shifts a neutral plane towards a plane of the wire trace.

15. The flexible display apparatus of claim 11 , wherein the insulation layer etched area is configured to minimize possible cracks from being formed.

16. The flexible display apparatus of claim 11 , wherein the stripe structure configured to act as a dam for inhibiting moisture or foreign materials from reaching the wire trace.

17. The flexible display apparatus of claim 11 , wherein the notched line has a curved shape.

18. The flexible display apparatus of claim 17 , wherein the organic layer has a curved shape corresponding to the curved shape of the notched line.

19. The flexible display apparatus of claim 11 , further comprising a polarizer layer located above the display area and extending into at least a portion of the routing area.

20. The flexible display apparatus of claim 11 , wherein the organic layer is a photo-curable material.

Assignees

• Lg Display Co Ltd

Inventors

• Son Haejoon
• Ryu Joungho
• Choi Siehyug

Classifications

• Y02E10/549

  Organic PV cells · CPC title

• H01L27/3288

  Electricity · mapped topic

• H01L2251/5338

  Electricity · mapped topic

• H01L51/0097

  Electricity · mapped topic

• H01L27/3262

  Electricity · mapped topic