Display panel, method for fabricating the same, and display apparatus

• US 10,180,742 B2
• Filed: 05/19/2016
• Issued: 01/15/2019
• Est. Priority Date: 08/03/2015
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Lin, Chuni, Wang, Minghsi
• Primary Examiner(s): Abdulselam, Abbas I
• Application Number:
  US15/159,341
• Publication Number:
  US 20170038874A1
• Time in Patent Office: 971 Days
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: H10K 59/40 OLEDs integrated with touch screens

Abstract

The present invention provides a display panel, a method for fabricating the same and a display apparatus. The display panel includes a first substrate; a pixel driving circuit and an organic light-emitting diode device sequentially provided on the first substrate; a protection layer provided at a light-outgoing side of the display panel; and a touch sensing line provided at a side of the protection layer away from the organic light-emitting diode device, the touch sensing line being able to achieve touch-control of the display panel. By providing the protection layer at the light-outgoing side of the display panel and providing the touch sensing line at the side of the protection layer away from the organic light-emitting diode device, the display panel can achieve both touch-control and display without being provided with a touch panel at the light-outgoing side thereof, thereby significantly reducing the overall thickness of the display panel.

Claims

1. A display panel, comprising:

a first substrate;

a pixel driving circuit on the first substrate;

an organic light-emitting diode device on a surface of the pixel driving circuit away from the first substrate;

a protection layer provided at a light-outgoing side of the display panel;

a touch sensing line at a side of the protection layer away from the organic light-emitting diode device, the touch sensing line being able to achieve touch-control of the display panel; and

a color filter layer at the side of the protection layer away from the organic light-emitting diode device

wherein an upper surface of the touch sensing line away from the protection layer is flush with an upper surface of the color filter layer away from the protection layer;

or a lower surface of the touch sensing line proximal to the protection layer is flush with a lower surface of the color filter layer proximal to the protection layer.

2. The display panel according to claim 1, wherein the color filter layer and the touch sensing line are directly on a surface of the protection layer.

3. The display panel according to claim 1, wherein the color filter layer and the touch sensing line are embedded in the protection layer.

4. The display panel according to claim 3, wherein the upper surfaces of both the color filter layer and the touch sensing line away From the organic light-emitting diode device are flush with an upper surface of the protection layer away from the organic light-emitting diode device.

5. The display panel according to claim 1, wherein the color filter layer is arranged in a display area of the display panel;

the touch sensing line is made of a metal material and is arranged in a non-display area of the display panel.

6. The display panel according to claim 1, wherein, a package layer for packaging the touch sensing line and the color filter layer is at a side or the touch sensing line and the color filter layer away From the protection layer.

7. The display panel according to claim 1, wherein the light-outgoing side of the display panel is a side of the first substrate away from the organic light-emitting diode device.

8. A method for fabricating a display panel, the display panel being the display panel according to claim 1, and the method comprising steps of:

sequentially forming a pixel driving circuit and an organic light-emitting diode device on a first substrate;

forming a protection layer at a light-outgoing side of the display panel;

forming a touch sensing line at a side of the protection layer away from the organic light-emitting diode device; and

forming a color filter layer at the side of the protection layer away from the organic light-emitting diode device,

wherein the touch sensing line and the color filter layer are formed such that an upper surface of the touch sensing line away from the protection layer is flush with an upper surface of the color filter layer away from the protection layer;

or a lower surface of the touch sensing line proximal to the protection layer is flush with a lower surface of the color filter layer proximal to the protection layer.

9. The display panel according to claim 1, wherein thicknesses of both the touch sensing line and the color filter layer are smaller than a thickness of the protection layer, and the thickness of the protection layer ranges from 1.5 μ

m to 44 μ

m.

10. A display apparatus, comprising the display panel according to claim 1.