Display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2019235682-A1
Application number	US-201916378369-A
Country	US
Kind code	A1
Filing date	Apr 8, 2019
Priority date	Mar 11, 2016
Publication date	Aug 1, 2019
Grant date	—

Abstract

A display apparatus including a substrate having a display area in which a display device is provided to display an image, and a non-display area around the display area. The non-display area includes a bending area that is bent about a bending axis; an encapsulation layer arranged above the display area; a touch electrode arranged above the encapsulation layer; a touch wire connected to the touch electrode and extending to the non-display area; and a fan-out wiring connected to a signal wiring that applies electric signals to the display area. At least a portion of the fan-out wiring is arranged in the bending area, and the fan-out wiring includes the same material as the touch wire.

First claim

What is claimed is:

1 . A display apparatus comprising:
a substrate including a display area in which a display device is disposed and a non-display area arranged around the display area; an encapsulation layer arranged above the display area; a touch electrode arranged above the encapsulation layer; a touch wire extending from the touch electrode to the non-display area; a fan-out wiring connected to a signal wiring extending from the display area; a terminal arranged in one side of the non-display area; and an organic material layer arranged between the terminal and the display area; wherein: at least a portion of the fan-out wiring is arranged on the organic material layer; at least a portion of the touch wire is arranged on the organic material layer; the fan-out wiring comprises the same material as the touch wire; and the organic material layer is disposed apart from an organic material layer in the display area.

2 . The display apparatus of claim 1 , wherein the fan-out wiring has one side connected to the signal wiring through a via hole and another side connected to the terminal.

3 . The display apparatus of claim 1 , further comprising:
a thin film transistor (TFT) arranged in the display area; and a planarization layer covering the TFT, wherein the organic material layer comprises the same material as the planarization layer.

4 . The display apparatus of claim 1 , wherein:
the display device comprises a pixel electrode, an opposite electrode facing the pixel electrode, and an intermediate layer interposed between the pixel electrode and the opposite electrode; the display apparatus further comprises a pixel defining layer comprising an opening that exposes a central portion of the pixel electrode and defining a pixel area in the display area; and the organic material layer comprises the same material as the pixel defining layer.

5 . The display apparatus of claim 1 , wherein:
the encapsulation layer comprises an organic encapsulation layer; and the organic material layer comprises the same material as the organic encapsulation layer.

6 . The display apparatus of claim 1 , further comprising a touch buffer layer interposed between the encapsulation layer and the touch electrode,
wherein the organic material layer comprises the same material as the touch buffer layer.

7 . The display apparatus of claim 1 , further comprising an inorganic insulating layer interposed between the substrate and the fan-out wiring,
wherein the inorganic material layer comprises an opening or a groove overlapped the organic material layer.

8 . The display apparatus of claim 1 , wherein:
the touch electrode comprises a first touch conductive layer, a first insulating layer, a second touch conductive layer, and a second insulating layer which are sequentially stacked; the first touch conductive layer is electrically connected to the second touch conductive layer; the touch wire comprises the same material as the second touch conductive layer; and the organic material layer comprises the same material as the first insulating layer.

9 . The display apparatus of claim 1 , wherein at least part of an upper surface of the organic material layer has surface unevenness.

10 . The display apparatus of claim 1 , further comprising:
a TFT arranged in the display area or the non-display area and comprising a source electrode, a drain electrode, and a gate electrode; and an additional conductive layer at least partially arranged in non-display area, wherein the additional conductive layer is provided in the same layer as the source electrode, the drain electrode, or the gate electrode by using the same material as the source electrode, the drain electrode, or the gate electrode.

11 . The display apparatus of claim 10 , wherein the additional conductive layer is spaced apart from the fan-out wiring.

12 . The display apparatus of claim 10 , wherein an insulating layer is interposed between the additional conductive layer and the fan-out wiring.

13 . The display apparatus of claim 12 , wherein the additional conductive layer and the fan-out wiring are electrically connected to each other through a via hole provided in the insulating layer.

14 . The display apparatus of claim 1 , further comprising:
a first TFT arranged in the display area or the non-display area and comprising a first semiconductor layer, a first source electrode, a first drain electrode, and a first gate electrode; a second TFT arranged in the display area or the non-display area and comprising a second semiconductor layer, a second source electrode, a second drain electrode, and a second gate electrode; a first additional conductive layer comprising the same material as the first gate electrode; and a second additional conductive layer comprising the same material as the second gate electrode, wherein: the first gate electrode and the second gate electrode are arranged in different layers; and at least one of the first additional conductive layer and the second additional conductive layer is overlapped the organic material layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Wonsuk
• Kim Sangmin
• Kim Sunghoon
• Kim Cheolsu
• Choi Yoonsun

Classifications

• Y02E10/549

  Organic PV cells · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• H01L51/5253

  Electricity · mapped topic