Display device

Patent metadata

Field	Value
Publication number	US-10290685-B2
Application number	US-201615356293-A
Country	US
Kind code	B2
Filing date	Nov 18, 2016
Priority date	May 23, 2016
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

A display device includes: a display panel layer including a display area and a second non-light emitting area, the display area including a plurality of light emitting areas and a first non-light emitting area, the first non-light emitting area being around each of the light emitting areas, and the second non-light emitting area being outside the display area; a window coating layer directly on a first surface of the display panel layer; and a first curl-preventing pattern overlapping at least one of the first non-light emitting area and the second non-light emitting area when viewed in a plan view and contacting the window coating layer. The first curl-preventing pattern is configured to prevent the window coating layer from curling.

First claim

What is claimed is:

1. A display device comprising:
a display panel layer comprising a display area and a second non-light emitting area, the display area comprising a plurality of light emitting areas and a first non-light emitting area, the first non-light emitting area being around each of the light emitting areas, and the second non-light emitting area being outside the display area;
a window coating layer directly coated on a first surface of the display panel layer; and
a first curl-preventing pattern overlapping at least one of the first non-light emitting area and the second non-light emitting area when viewed in a plan view and contacting the window coating layer,
wherein the first curl-preventing pattern is directly on the first surface of the display panel layer.

2. The display device of claim 1 , wherein the second non-light emitting area extends around the display area when viewed in the plan view.

3. The display device of claim 2 , wherein the first curl-preventing pattern has a closed-loop shape around the display area when viewed in the plan view.

4. The display device of claim 1 , wherein the first curl-preventing pattern is entirely covered by the window coating layer.

5. A display device comprising:
a display panel layer comprising a display area and a second non-light emitting area, the display area comprising a plurality of light emitting areas and a first non-light emitting area, the first non-light emitting area being around each of the light emitting areas, and the second non-light emitting area being outside the display area;
a window coating layer coated on a first surface of the display panel layer; and
a first curl-preventing pattern overlapping the first non-light emitting area when viewed in a plan view and contacting the window coating layer.

6. The display device of claim 5 , wherein the first curl-preventing pattern has a lattice shape or a dot shape and is spaced from the light emitting areas when viewed in the plan view.

7. The display device of claim 6 , wherein the first curl-preventing pattern also overlaps the second non-light emitting area.

8. The display device of claim 1 , wherein the display device is configured to be bent with respect to a bending axis, and the first curl-preventing pattern does not overlap the bending axis.

9. The display device of claim 1 , further comprising a base coating layer directly on a second surface of the display panel layer opposite the first surface of the display panel layer in a thickness direction of the display panel layer.

10. The display device of claim 9 , further comprising a second curl-preventing pattern overlapping at least one of the first non-light emitting area and the second non-light emitting area when viewed in the plan view and contacting the base coating layer, the second curl-preventing pattern being configured to prevent the base coating layer from curling.

11. The display device of claim 10 , wherein the second curl-preventing pattern is on the second surface of the display panel layer.

12. The display device of claim 10 , wherein the second curl-preventing pattern is in the base coating layer.

13. The display device of claim 9 , wherein the window coating layer extends onto a side surface of the display panel layer, and the base coating layer extends onto the side surface of the display panel layer and contacts the window coating layer.

14. The display device of claim 9 , wherein the window coating layer is integrally formed with the base coating layer.

15. The display device of claim 9 , further comprising a protective layer on at least one of a side surface of the display panel layer, a side surface of the window coating layer, and a side surface of the base coating layer.

16. The display device of claim 9 , further comprising an accommodating chassis accommodating components configured to drive the display panel layer,
wherein an accommodating space is defined between the accommodating chassis and at least one of a side surface of the display panel layer, a side surface of the window coating layer, and a side surface of the base coating layer, and
wherein the components are accommodated in the accommodating space.

17. The display device of claim 1 , wherein the first curl-preventing pattern has an elastic modulus greater than an elastic modulus of the window coating layer.

18. The display device of claim 1 , wherein the display panel layer further comprises:
a pixel layer to display an image;
a touch layer on the pixel layer and configured to sense a touch applied thereto; and
a reflection-preventing layer on the pixel layer and configured to prevent external light from being reflected therefrom,
wherein one of the touch layer and the reflection-preventing layer is an outermost layer of the display panel layer, and
wherein the window coating layer is directly on an outer surface of the one of the touch layer and the reflection-preventing layer that is the outermost layer of the display panel layer.

19. A display device comprising:
a display panel layer comprising a pixel layer to display an image, a touch layer on the pixel layer and configured to sense a touch applied thereto, and a reflection-preventing layer on the pixel layer and configured to prevent external light from being reflected therefrom, one of the touch layer and the reflection-preventing layer being an outermost layer of the display panel layer;
a window coating layer directly on an outer surface of the one of the touch layer and the reflection-preventing layer that is an outermost surface of the display panel layer; and
a curl-preventing pattern contacting the window coating layer, the curl-preventing pattern being configured to prevent the window coating layer from curling.

20. A display device comprising:
a display panel layer having a display area and a non-display area around the display area, the display panel layer comprising a plurality of organic light emitting diodes in the display area;
a window coating layer on the display panel layer; and
a curl-preventing pattern on the display panel layer in the display area between adjacent ones of the organic light emitting diodes, the curl-preventing pattern having a greater elastic modulus than the window coating layer.

21. The display device of claim 20 , wherein the curl-preventing pattern is also on the display panel layer in the non-display area.

22. The display device of claim 21 , further comprising a black matrix on the display panel layer in the non-display area,
wherein the curl-preventing pattern is on the black matrix and under the window coating layer.

23. The display device of claim 20 , wherein the curl-preventing pattern comprises a plurality of sub-curl preventing patterns, and
wherein a first one of the sub-curl preventing patterns extends from one edge of the display panel layer toward a center thereof, and a second one of the sub-curl preventing patterns extends from another edge of the display panel layer opposite the one edge of the display panel layer, the first and second ones of the sub-curl preventing patterns being spaced from each other.

24. The display device of claim 23 , wherein the display device is configured to be bent at an area between the first and second ones of the sub-curl preventing patterns.

Assignees

• Samsung Display Co Ltd

Inventors

• Oh Hyunjoon
• Kang Byunghoon
• Kim Boa
• Kim Sanghoon
• Park Sang-Il
• Shin Heonjung
• Oh Hye-Jin
• Lee Jeongsub
• Cheon Junhyuk
• Choi Min-Hoon

Classifications

• H01L27/3244

  Electricity · mapped topic

• H01L51/5253

  Electricity · mapped topic

• G06F3/046

  by electromagnetic means · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G06F3/044

  by capacitive means · CPC title