Display device

Patent metadata

Field	Value
Publication number	US-10192941-B2
Application number	US-201615361547-A
Country	US
Kind code	B2
Filing date	Nov 28, 2016
Priority date	Dec 14, 2015
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

The display device includes a first substrate having flexibility and including pixels arranged in matrix form in a first direction and a second direction, the first direction and second direction mutually intersecting each other, a transistor layer arranged above the first substrate and including at least one transistor arranged in each of the pixels, an inorganic insulation film formed continuously across the pixels in the second direction, and a plurality of aperture parts extending in the second direction and arranged between two transistors arranged in two of the plurality of pixels adjacent in the first direction, a plurality of first groups of wiring extending in the first direction and connected to each of the pixels arranged in the first direction, and a plurality of second groups of wiring extending in the second direction and connected to each of the pixels arranged in the second direction.

First claim

What is claimed is:

1. A display device comprising:
a first substrate having flexibility and including a plurality of pixels arranged in a matrix form in a first direction and a second direction, the first direction and second direction mutually intersecting each other;
a transistor layer which is arranged above the first substrate, includes at least one transistor arranged in each of the plurality of pixels, and has an inorganic insulation layer formed in the plurality of pixels in common and a plurality of aperture parts that pass through the inorganic insulation layer, extend in the second direction, and are arranged between two transistors arranged in two of the plurality of pixels adjacent in the first direction;
a plurality of first groups of wirings extending continuously in the first direction and connected to each of a plurality of pixels arranged in the first direction among the plurality of pixels;
a plurality of second groups of wirings extending in the second direction and connected to each of a plurality of pixels arranged in the second direction among the plurality of pixels;
a first organic insulation layer on the transistor layer; and
a second organic insulation layer on the first organic insulation layer, wherein
the first groups of wirings are arranged between the first and the second organic insulation layers, and
a shape of each of the first groups of wirings is a corrugated form with curves that repeat in the first direction that is perpendicular to the second direction in a cross-sectional view.

2. The display device according to claim 1 , wherein the plurality of first groups of wirings include a video signal line and the plurality of second groups of wirings include a scanning signal line.

3. The display device according to claim 1 , wherein the plurality of first groups of wirings include a scanning signal line and the plurality of second groups of wirings include a video signal line.

4. The display device according to claim 1 , further comprising:
an underlying layer arranged between the first substrate and the transistor layer;
wherein
each of the plurality of aperture parts sections the underlying layer in at least the first direction; and
the underlying layer is formed in the plurality of pixels in common in the second direction.

5. The display device according to claim 4 , further comprising:
a planarizing insulation layer arranged above the plurality of first groups of wirings; and
a light-emission element arranged in each of the plurality of pixels above the planarizing insulation layer.

6. The display device according to claim 5 , further comprising:
an inorganic insulation layer arranged between the planarizing insulation layer and the light-emission element.

7. The display device according to claim 1 , wherein the plurality of first groups of wirings are arranged along a surface of a transistor layer including the plurality of aperture parts.

8. The display device according to claim 7 , further comprising:
a cover layer covering the transistor layer, including an inorganic insulation layer, and arranged between the transistor layer and the plurality of first groups of wiring.

9. The display device according to claim 7 , further comprising:
a cover layer covering the transistor layer, including an inorganic insulation layer, and arranged above the plurality of first groups of wiring.

10. The display device according to claim 1 , further comprising:
a concave-convex layer covering the transistor layer, arranged below the plurality of first groups of wirings, and having a surface with a concave-convex shape.

11. The display device according to claim 10 , wherein the plurality of first groups of wirings are formed along a surface of the concave-convex layer.

12. The display device according to claim 1 , further comprising:
a sealing layer covering the plurality of pixels and including an inorganic insulation layer.

13. The display device according to claim 12 , further comprising:
a sealing layer including an organic insulation layer.

14. The display device according to claim 13 , further comprising:
a sealing layer alternately stacked with the organic insulation layer and the inorganic insulation layer.

15. The display device according to claim 1 , wherein the plurality of first groups of wirings are larger than the plurality of second groups of wirings with respect to a relief in a thickness direction of the first substrate.

16. The display device according to claim 1 , wherein a planar region and a bending region each including a display region, the bending region capable of being bent more in the first direction than in the second direction.

17. The display device according to claim 1 , further comprising:
a second substrate having flexibility and arranged opposing the first substrate; and
a plurality of color filters having a surface with a concave-convex pattern and arranged in a surface where the second substrate opposes the first substrate.

18. The display device according to claim 1 , wherein the first substrate includes a plurality of concave parts extending in the second direction, the plurality of concave parts separating adjacent the two transistors in the first direction.

19. The display device according to claim 18 , further comprising: a plurality of capacitors arranged in the plurality of concave parts.

20. The display device according to claim 19 , wherein the plurality of capacitors is arranged across a bottom part and a part of a side wall of the plurality of concave parts.

Assignees

• Japan Display Inc

Inventors

• Sato Toshihiro

Classifications

• G09G2310/0202

  Addressing of scan or signal lines · CPC title

• G09G3/3266

  Details of drivers for scan electrodes · CPC title

• G09G2300/0809

  Several active elements per pixel in active matrix panels · CPC title

• H01L51/52

  Electricity · mapped topic

• H01L27/3262

  Electricity · mapped topic