Display panel including a module hole and a groove surrounding the module hole

Patent metadata

Field	Value
Publication number	US-11653525-B2
Application number	US-202217583493-A
Country	US
Kind code	B2
Filing date	Jan 25, 2022
Priority date	Apr 30, 2018
Publication date	May 16, 2023
Grant date	May 16, 2023

Abstract

A display panel including: a base substrate including first and second surfaces, a display region and a peripheral region; a pixel layer provided on the display region, the pixel layer including a plurality of pixels; a module hole penetrating the display region; a blocking groove in the display region and adjacent to the module hole, the blocking groove being recessed in the base substrate; an encapsulation layer provided on the pixel layer, the encapsulation layer including a first inorganic layer, a second inorganic layer and an organic layer; and a filling member in the blocking groove, the filling member including a same material as the organic layer, wherein the second inorganic layer covers a top surface of the filling member and a top surface of the first inorganic layer adjacent to the top surface of the filling member.

First claim

What is claimed is:

1. A display panel comprising a display region, a hole region at least partially surrounded by the display region, and an intermediate region disposed between the display region and the hole region and the display panel comprising:
a module hole in the hole region and passing through the display panel;
at least one groove in the intermediate region and surrounding the module hole;
a light emitting element in the display region and including a first electrode, a second electrode, a light emitting layer, and a charge control layer disposed between the first electrode and the second electrode;
an encapsulation layer including a first inorganic layer covering the light emitting element, a second inorganic layer, and an organic layer disposed between the first inorganic layer and the second inorganic layer; and
an organic pattern disposed in the at least one groove,
wherein a portion of the organic layer is disposed in the at least one groove and the organic pattern has a same material as the charge control layer or the light emitting layer.

2. The display panel of claim 1 , further comprising a tip portion is disposed on the at least one groove,
the tip portion comprises a first portion and a second portion spaced apart from the first portion in one direction by a first width to expose a portion of the at least one groove, and
a second width of the at least one groove in the one direction is greater than the first width.

3. The display panel of claim 2 , wherein the first portion and the second portion are covered by the first inorganic layer.

4. The display panel of claim 3 , wherein the first inorganic layer covers the organic pattern in the at least one groove.

5. The display panel of claim 4 , wherein the organic layer covers the first inorganic layer in the at least one groove.

6. The display panel of claim 4 , wherein the second inorganic layer covers the portion of the at least one groove exposed by the first portion and the second portion.

7. The display panel of claim 2 , wherein the display panel further comprises at least one insulating layer including an inorganic material, and
the tip portion corresponds to the at least one insulating layer.

8. The display panel of claim 7 , further comprising a transistor comprising a semiconductor layer, and
wherein the insulation layer is disposed under the semiconductor layer.

9. The display panel of claim 1 , wherein an inner surface defining the at least one groove is inclined.

10. The display panel of claim 1 , wherein the display panel comprises a base layer including an organic material and a barrier layer disposed on the base layer and including an inorganic material, and
the at least one groove comprises a base groove in which a portion of the base layer is recessed, and a substrate opening penetrating the barrier layer and overlapping the base groove.

11. The display panel of claim 1 , wherein the at least one groove further comprises a first groove surrounding the module hole and a second groove surrounding the first groove, each of the first groove and the second groove overlapping the intermediate region.

12. The display panel of claim 11 , wherein at least one of the first groove and the second groove has a circular, an oval, or a polygonal closed line shape on a plane,
a shape of the module hole has a circular, an oval, or a polygonal on a plane.

13. The display panel of claim 1 , further comprising a plurality of insulating layers disposed on the display region, and
a dam portion having a same material as at least one of the plurality of insulating layers and disposed in the intermediate region.

14. The display panel of claim 13 , wherein the dam portion is disposed between the module hole and the at least one groove.

15. The display panel of claim 13 , wherein the at least one groove further comprises a first groove surrounding the module hole and a second groove surrounding the first groove, and
the dam portion is disposed between the first groove and the second groove or disposed between the second groove and the plurality of insulating layers.

16. An electronic device, comprising:
a display panel comprising a display region, a hole region at least partially surrounded by the display region, and an intermediate region disposed between the display region and the hole region; and
an electronic module overlapping the hole region and disposed under the display panel;
wherein the display panel comprises:
a module hole in the hole region and passing through the display panel;
at least one groove in the intermediate region and surrounding the module hole;
a light emitting element the display region and including a first electrode, a second electrode, and an intermediate layer between the first electrode and the second electrode;
an encapsulation layer including a first inorganic layer covering the light emitting element, a second inorganic layer, and an organic layer disposed between the first inorganic layer and the second inorganic layer;
an organic pattern disposed in the at least one groove; and
a filling member disposed in the at least one groove,
wherein the filling member has a same material as the organic layer, and
the organic pattern has a same material as the intermediate laver.

17. The electronic device of claim 16 , wherein the electronic module comprises at least one of a light-emitting module, a light-receiving module, and a camera module.

18. The electronic device of claim 17 , further comprising a tip portion disposed on the at least one groove,
the tip portion comprises a first portion and a second portion spaced apart from the first portion in one direction by a first width to expose a portion of the at least one groove, and
a second width of the at least one groove in the one direction is greater than the first width.

19. The electronic device of claim 18 , wherein the first portion and the second portion are covered by the first inorganic layer.

20. The electronic device claim 19 , wherein the filling member is spaced apart from the organic layer.

21. The electronic device of claim 20 , further comprising a dam portion between the module hole and the at least one groove.

Assignees

• Samsung Display Co Ltd

Inventors

• Seo Junghan
• Lee Hyoungsub
• Sung Wooyong

Classifications

• H10K59/873

  Encapsulations · CPC title

• H10K59/8722

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K50/844

  Encapsulations · CPC title

• H10K59/121 Primary

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

• H10K59/40

  OLEDs integrated with touch screens · CPC title