Display device

Patent metadata

Field	Value
Publication number	US-11737323-B2
Application number	US-202017100088-A
Country	US
Kind code	B2
Filing date	Nov 20, 2020
Priority date	Dec 31, 2019
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

A display device includes a substrate including a first area, a display area surrounding the first area, and a peripheral area surrounding the display area and including a bent area; a display unit including pixels; a driving circuit in the peripheral area; and a fan-out unit in the peripheral area and including a first wiring portion and a second wiring portion apart from each other in the bent area. The first wiring portion includes first wirings. Each of the first wirings includes a first portion extending in a first direction between the display unit and the bent area, and a second portion extending in a second direction. A width of the first portion is greater than a width of the second portion.

First claim

What is claimed is:

1. A display device comprising:
a substrate that includes:
a first area;
a display area surrounding the first area; and
a peripheral area surrounding the display area and including a bent area;

a display unit disposed in the display area and including a plurality of pixels;
a driving circuit disposed in the peripheral area; and
a fan-out unit disposed in the peripheral area between the display unit and the driving circuit to transfer a data signal applied from the driving circuit to the display unit, the fan-out unit including a first wiring portion and a second wiring portion spaced apart from each other in the bent area, wherein
the first wiring portion includes a plurality of first wirings, each of the plurality of first wirings includes:
a first portion extending in a first direction between the display unit and the bent area; and
a second portion extending in a second direction intersecting the first direction, a width of the first portion being greater than a width of the second portion, and

each of the plurality of first wirings includes:
a first conductive layer disposed between the display area and the bent area;
a second conductive layer disposed in the bent area; and
a third conductive layer disposed between the bent area and the driving circuit, wherein the first conductive layer, the second conductive layer, and the third conductive layer are electrically connected to each other.

2. The display device of claim 1 , wherein
a predetermined number of the plurality of first wirings are electrically connected to a plurality of data lines, and
a predetermined number of the data lines are routed with respect to the first area.

3. The display device of claim 1 , wherein, in the plurality of first wirings, an interval between first portions is equal to or greater than an interval between second portions.

4. The display device of claim 1 , wherein a width of the first portion is about 1.5 to about 2 times greater than a width of the second portion.

5. The display device of claim 1 , wherein
each of the plurality of first wirings includes a third portion disposed in the bent area, and
a width of the third portion is greater than a width of the first portion.

6. The display device of claim 1 , wherein the first conductive layer and the third conductive layer include a same material.

7. The display device of claim 1 , wherein the second conductive layer includes a material different from a material of the first conductive layer and a material of the third conductive layer.

8. The display device of claim 1 , wherein the first conductive layer and the third conductive layer include molybdenum (Mo).

9. The display device of claim 1 , wherein the second conductive layer includes aluminum (Al).

10. The display device of claim 1 , wherein the second conductive layer is electrically connected to the first conductive layer and the third conductive layer through contact holes passing through an insulating layer disposed outside of the bent area.

11. The display device of claim 1 , wherein
the display unit includes:
a pixel circuit; and
a display element electrically connected to the pixel circuit,

the pixel circuit includes a thin-film transistor including:
a semiconductor layer;
a gate electrode overlapping a portion of the semiconductor layer; and
an electrode layer disposed above the gate electrode, and

the first conductive layer and the gate electrode include a same material.

12. The display device of claim 11 , wherein the second conductive layer and the electrode layer includes a same material.

13. The display device of claim 1 , wherein the first area includes a transparent region.

14. The display device of claim 1 , wherein the first area includes a non-display area.

15. The display device of claim 1 , wherein the first area is disposed at a top center of the display area.

16. The display device of claim 1 , wherein the first wiring portion is disposed at a central portion of the fan-out unit.

17. The display device of claim 1 , wherein the first area is disposed at a top-left side of the display area.

18. The display device of claim 17 , wherein the first wiring portion is disposed at a left side with respect to a central portion of the fan-out unit.

19. The display device of claim 1 , wherein the first area is disposed at a top-right side of the display area.

20. The display device of claim 19 , wherein the first wiring portion is disposed at a right side with respect to a central portion of the fan-out unit.

21. The display device of claim 1 , comprising a component disposed at a side of the substrate corresponding to the first area.

22. The display device of claim 1 , wherein for each of the plurality of first wirings includes a second portion on a side of a respective first portion away from the bent area.

Assignees

• Samsung Display Co Ltd

Inventors

• Cho Yuhyun
• Kwon Sora
• Lee Oukjae
• Cho Ilryong

Classifications

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G3/3275

  Details of drivers for data electrodes · CPC title

• G09G3/3233

  with pixel circuitry controlling the current through the light-emitting element · CPC title

• G09G3/03 Primary

  specially adapted for displays having non-planar surfaces, e.g. curved displays · CPC title

• H10K59/122 Primary

  Pixel-defining structures or layers, e.g. banks · CPC title