Display panel and display device having repair layers

Patent metadata

Field	Value
Publication number	US-11217575-B2
Application number	US-202016905981-A
Country	US
Kind code	B2
Filing date	Jun 19, 2020
Priority date	Jan 3, 2020
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

Disclosed are a display panel and a display device. The display panel includes: a substrate and a pixel array, where the pixel array is located on a side of the substrate, and the pixel array includes at least one inorganic insulating layer, and an edge of the inorganic insulating layer are located in the non-display area; a first repair layer, where the first repair layer is located in the non-display area, the first repair layer is located on a side of the inorganic insulating layer facing away from the substrate, the first repair layer covers the edge of the inorganic insulating layer, the first repair layer is in contact with the substrate, and the first repair layer has a repair function; and a light source, where the light source is located in the non-display area and configured to provide light to the first repair layer to trigger the repair function.

First claim

What is claimed is:

1. A display panel, comprising:
a display area and a non-display area surrounding the display area;
a substrate;
a pixel array, wherein the pixel array is located at a side of the substrate, the pixel array comprises at least one inorganic insulating layer, and an edge of the inorganic insulating layer is located in the non-display area;
a first repair layer, wherein the first repair layer is located in the non-display area, the first repair layer is located on a side of the inorganic insulating layer facing away from the substrate, the first repair layer covers the edge of the inorganic insulating layer, the first repair layer is in contact with the substrate, and the first repair layer has a repair function; and
a light source, wherein the light source is located in the non-display area and configured to provide light to the first repair layer to trigger the repair function.

2. The display panel of claim 1 , wherein the first repair layer comprises a base material and an initiator.

3. The display panel of claim 2 , wherein the initiator comprises a photoacid generator, and the base material comprises an acrylic monomer.

4. The display panel of claim 1 , wherein the light source is selective light-emitting.

5. The display panel of claim 4 , wherein the light source is active and selective light-emitting, and a light-emitting frequency of the light source is a fixed frequency.

6. The display panel of claim 4 , wherein the light source is passive and selective light-emitting, and the light source is configured to emit light after the display panel is subject to an external stimuli.

7. The display panel of claim 1 , wherein the inorganic insulating layer has at least one groove, and the groove is located in the non-display area; and the groove is filled with the first repair layer.

8. The display panel of claim 1 , wherein the display panel further comprises:
a light-shielding layer, the light-shielding layer is located on a side of the pixel array facing away from the substrate, and the light-shielding layer is located in the non-display area.

9. The display panel of claim 1 , wherein the display panel further comprises:
an organic light-emitting layer, the organic light-emitting layer is located on a side of the pixel array facing away from the substrate, and the organic light-emitting layer comprises a plurality of light-emitting devices; and
the light source is an organic light-emitting diode, and the organic light-emitting diode is prepared in a same layer as the plurality of light-emitting devices.

10. The display panel of claim 1 , wherein the light source is a Micro-LED, and the light source is located on a side of a base substrate facing the pixel array or on a side of the base substrate facing away from the pixel array.

11. The display panel of claim 10 , wherein in a direction perpendicular to a plane where the substrate is located, the light source and the first repair layer at least partially overlap.

12. The display panel of claim 1 , wherein the light source is an ultraviolet light source.

13. The display panel of claim 1 , wherein the display panel further comprises:
an organic light-emitting layer, the organic light-emitting layer is located on a side of the pixel array facing away from the substrate; the display panel further comprises an encapsulation structure, the encapsulation structure is located on a side of an organic light-emitting layer facing away from the substrate, and the encapsulation structure comprises at least one organic encapsulation layer and at least one inorganic encapsulation layer;
the display panel further comprises a second repair layer, and the second repair layer has the repair function; and
the second repair layer is reused as the organic encapsulation layer.

14. The display panel of claim 1 , wherein the display panel further comprises:
a thin film touch layer, the thin film touch layer is located on a side of the pixel array facing away from the substrate, and the thin film touch layer comprises a touch metal layer and an insulating touch layer;
the display panel further comprises a third repair layer, and the third repair layer has the repair function; and
the third repair layer is reused as the insulating touch layer.

15. The display panel of claim 1 , wherein the non-display area comprises:
a bending area and a binding area, and the binding area is located on a side of the bending area facing away from the display area; and
the bending area comprises a fourth repair layer, the fourth repair layer has the repair function, and the fourth repair layer is used to repair the bending area.

16. A display device, comprising:
a display panel, wherein the display panel comprises:
a display area and a non-display area surrounding the display area;
a substrate;
a pixel array, wherein the pixel array is located at a side of the substrate, the pixel array comprises at least one inorganic insulating layer, and an edge of the inorganic insulating layer is located in the non-display area;
a first repair layer, wherein the first repair layer is located in the non-display area, the first repair layer is located on a side of the inorganic insulating layer facing away from the substrate,
the first repair layer covers the edge of the inorganic insulating layer, the first repair layer is in contact with the substrate, and the first repair layer has a repair function; and
a light source, wherein the light source is located in the non-display area and configured to provide light to the first repair layer to trigger the repair function.

Assignees

• Shanghai Tianma Am Oled Co Ltd

Inventors

• Zhai Yingteng

Classifications

• H10W90/00

  Package configurations · CPC title

• H10W42/121

  protecting against mechanical damage (H10W76/00, H10W74/00 take precedence) · CPC title

• H10K59/12 Primary

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/873

  Encapsulations · CPC title

• H10K59/121 Primary

  characterised by the geometry or disposition of pixel elements · CPC title