IP Library › Granted Patent US 10,115,928
Granted Patent B2
US 10,115,928 · App. 15/936,359 · Granted Oct 30, 2018

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

Inventors: HaeJoon Son (Paju-si, KR); JoungHo Ryu (Seoul, KR); SieHyug Choi (Goyang-si, KR)
Assignee: LG Display Co., Ltd.
H01L51/5253H01L27/323H01L27/3262H01L27/3276H01L27/3288H01L51/0097H01L51/5281H01L2251/5338Y02E10/549
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Quick Facts
Patent No.
US 10,115,928
App. No.
15/936,359
Granted
Oct 30, 2018
Kind
B2
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.

Claims (29)

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.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2018
From: SON, HAEJOON; RYU, JOUNGHO; CHOI, SIEHYUG
To: LG DISPLAY CO., LTD.
Reel/Frame 045377/0023 →
Continuity (5)
Continuation 15684858 · Aug 23, 2017
Continuation 15174685 · Jun 6, 2016
Continuation 14945371 · Nov 18, 2015
Continuation 14474154 · Aug 31, 2014
Related Publication 20180219181A1 · Aug 2, 2018