Light emitting display panel and manufacture method thereof, display device

Patent metadata

Field	Value
Publication number	US-2019220644-A1
Application number	US-201816149330-A
Country	US
Kind code	A1
Filing date	Oct 2, 2018
Priority date	Jan 12, 2018
Publication date	Jul 18, 2019
Grant date	—

Abstract

A light emitting display panel and a manufacture method thereof, and a display device are provided. The light emitting display panel includes a display region and a periphery region; the periphery region includes a first wire; the display region includes a light shielding layer and a fingerprint detection circuit; the light shielding layer includes at least one opening, the at least one opening at least partially overlaps the fingerprint detection circuit in a direction perpendicular to a panel surface of the display panel to allow light passing through the opening to be incident onto the fingerprint detection circuit, and the light shielding layer and the first wire are in same one layer.

First claim

What is claimed is:

1 . A light emitting display panel, comprising a display region and a periphery region,
wherein the periphery region comprises a first wire; the display region comprises a light shielding layer and a fingerprint detection circuit; the light shielding layer comprises at least one opening, and the at least one opening at least partially overlaps the fingerprint detection circuit in a direction perpendicular to a panel surface of the display panel to allow light passing through the opening to be incident onto the fingerprint detection circuit; and the light shielding layer and the first wire are in same one layer.

2 . The light emitting display panel according to claim 1 , further comprising a base substrate,
wherein the display region further comprises a light emitting component on the base substrate; and the light shielding layer is on a side, which is closer to the base substrate, of the light emitting component.

3 . The light emitting display panel according to claim 2 , wherein the display region further comprises a thin film transistor for driving the light emitting component; and
the light shielding layer is between the thin film transistor and the light emitting component in the direction perpendicular to the panel surface of the display panel.

4 . The light emitting display panel according to claim 1 , wherein the periphery region comprises a bending region;
the bending region comprises at least one groove and a flexible insulating material filled in the groove; and the first wire extends across the bending region.

5 . The light emitting display panel according to claim 4 , wherein the bending region comprises an inorganic material layer;
the groove is formed in the inorganic material layer; and the first wire further extends on the inorganic material layer.

6 . The light emitting display panel according to claim 3 , wherein the display region further comprises a second wire;
the second wire extends from the display region to the periphery region; and the second wire electrically connects with the first wire.

7 . The light emitting display panel according to claim 6 , wherein the second wire is in same one layer as a source electrode or a drain electrode of the thin film transistor.

8 . The light emitting display panel according to claim 6 , wherein the second wire and a gate electrode of the thin film transistor are in same one layer.

9 . The light emitting display panel according to claim 2 , wherein the display region further comprises a second wire and the second wire extends from the display region to the periphery region; and
the periphery region further comprises a first planarization layer, and the first wire and the second wire are respectively on different sides of the first planarization layer in the direction perpendicular to the panel surface of the display panel.

10 . The light emitting display panel according to claim 9 , wherein the second wire is closer to the base substrate compared with the first wire.

11 . The light emitting display panel according to claim 2 , wherein the periphery region comprises a plurality of first wires;
the display region comprises a plurality of second wires, and the plurality of second wires extend from the display region to the periphery region; and the plurality of first wires and the plurality of second wires are alternately disposed on the different sides of the first planarization layer.

12 . The light emitting display panel according to claim 2 , wherein the periphery region comprises a plurality of first wires;
the display region comprises a plurality of second wires, and the plurality of second wires extend from the display region to the periphery region; and orthographic projections of the plurality of first wires on the base substrate and orthographic projections of the plurality of second wires on the base substrate are alternately arranged in the periphery region.

13 . The light emitting display panel according to claim 9 , wherein the periphery region comprises a bending region and the bending region comprises at least one groove; and
at least part of the first planarization layer is filled in the groove, and both the first wire and the second wire extend across the bending region.

14 . The light emitting display panel according to claim 13 , wherein the bending region comprises an inorganic material layer;
the groove is formed in the inorganic material layer; the second wire is on the inorganic material layer; the first planarization layer is on the second wire; and the first wire is on the first planarization layer.

15 . The light emitting display panel according to claim 1 , wherein the light shielding layer comprises a plurality of openings and the plurality of openings are arranged in an array.

16 . The light emitting display panel according to claim 2 , wherein the fingerprint detection circuit is on a surface, which is closer to the light shielding layer, of the base substrate; alternatively,
the fingerprint detection circuit is on a surface, which is away from the light shielding layer, of the base substrate.

17 . A display device, comprising the light emitting display panel according to claim 1 .

18 . A manufacture method of a light emitting display panel, comprising forming a display region and a periphery region,
wherein a first wire is formed in the periphery region; a light shielding layer and a fingerprint detection circuit are provided in the display region; the light shielding layer comprises at least one opening, the at least one opening at least partially overlaps the fingerprint detection circuit in a direction perpendicular to a panel surface of the display panel to allow light passing through the opening to be incident onto the fingerprint detection circuit, and the light shielding layer and the first wire are formed from a same material layer by a patterning process.

19 . The manufacture method of the light emitting display panel according to claim 18 , further comprising:
forming a plurality of openings arranged in an array in the light shielding layer.

20 . The manufacture method of the light emitting display panel according to claim 18 , further comprising:
forming at least one groove in the periphery region; and filling a flexible insulating material in the groove to form a bending region, wherein the first wire is formed to extend across the bending region.

Assignees

• Boe Technology Group Co Ltd
• Chengdu Boe Optoelect Tech Co

Inventors

• Sun Kuo
• Wang Yang
• Ma Guoqiang

Classifications

• H01L27/3234

  Electricity · mapped topic

• H01L2251/5338

  Electricity · mapped topic

• H01L51/0097

  Electricity · mapped topic

• H01L27/14678

  Electricity · mapped topic

• H01L51/56

  Electricity · mapped topic