Display panel and display apparatus

Patent metadata

Field	Value
Publication number	US-10276823-B2
Application number	US-201715588937-A
Country	US
Kind code	B2
Filing date	May 8, 2017
Priority date	Dec 28, 2016
Publication date	Apr 30, 2019
Grant date	Apr 30, 2019

Abstract

A display panel and a display apparatus are provided. The display panel comprises a substrate including a display region and a non-display region; a display element disposed in the display region of the substrate; and at least one bank disposed in the non-display region of the substrate and surrounding the display region. The at least one bank comprises at least one inorganic layer and at least one metal layer, and the at least one inorganic layer encapsulates the at least one metal layer.

First claim

What is claimed is:

1. A display panel, comprising:
a substrate including a display region and a non-display region;
a display element disposed in the display region of the substrate;
at least one bank disposed in the non-display region of the substrate and disposed surrounding the display region; and
a thin film encapsulation layer including at least one inorganic layer, wherein:
the at least one bank includes a first inorganic layer, a first metal layer, a second inorganic layer, a second metal layer, and a third inorganic layer sequentially disposed on the substrate,
the first metal layer is encapsulated between, and in contact with, the first inorganic layer and the second inorganic layer,
the second metal layer is encapsulated between, and in contact with, the second inorganic layer and the third inorganic layer, and
the at least one inorganic layer in the thin film encapsulation layer is in contact with at least one of the first inorganic layer, the second inorganic layer or the third inorganic layer.

2. The display panel according to claim 1 , wherein:
the at least one bank has a thickness h of approximately 200 nm≤h≤4000 nm.

3. The display panel according to claim 1 , wherein:
at least one of the first inorganic layer, the second inorganic layer or the third inorganic layer in the at least one bank has a thickness h 1 of approximately 100 nm≤h 1 ≤1000 nm.

4. The display panel according to claim 1 , wherein:
at least one of the first metal layer or the second metal layer in the at least one bank has a thickness h 2 of approximately 100 nm≤h 2 ≤500 nm.

5. The display panel according to claim 1 , wherein:
at least one of the first inorganic layer, the second inorganic layer or the third inorganic layer in the at least one bank has a width w 1 of approximately 10 μm≤w 1 ≤100 μm.

6. The display panel according to claim 1 , wherein:
at least one of the first metal layer or the second metal layer in the at least one bank has a width w 2 of approximately 1 μm≤w 2 ≤50 μm.

7. The display panel according to claim 1 , wherein:
the thin film encapsulation layer covers the display element.

8. The display panel according to claim 1 , wherein:
the first inorganic layer, the second inorganic layer, and the third inorganic layer each has a thickness of approximately 1000 nm and a width of approximately 50 μm; and
the first metal layer and the second metal layer each has a thickness of approximately 300 nm and a width of approximately 30 μm.

9. The display panel according to claim 1 , wherein:
the at least one inorganic layer in the thin film encapsulation layer covers the at least one bank.

10. The display panel according to claim 1 , wherein:
the display element comprises a plurality of thin-film-transistors (TFTs) and a plurality of light-emitting elements; and
a TFT comprises a first insulating layer, a gate electrode, a second insulating layer, a source electrode, a drain electrode, and a third insulating layer, which are sequentially disposed on the substrate.

11. The display panel according to claim 10 , wherein:
at least one of the first metal layer or the second metal layer in the at least one bank is disposed in a same layer as the gate electrode, the source electrode, or the drain electrode.

12. The display panel according to claim 10 , wherein:
at least one of the first metal layer or the second metal layer in the at least one bank is disposed in a same layer as the first insulating layer, the second insulating layer, or the third insulating layer.

13. The display panel according to claim 10 , wherein:
the first inorganic layer is disposed in a same layer as the first insulating layer;
the gate electrode is disposed in a same layer as the first metal layer;
the second insulating layer is disposed in a same layer as the second inorganic layer;
the source electrode and the drain electrode are disposed in a same layer as the second metal layer; and
the third insulating layer is disposed in a same layer as the third inorganic layer.

14. The display panel according to claim 1 , wherein:
the thin-film encapsulation layer further includes another inorganic layer and an organic layer, and
the organic layer is disposed between the at least one inorganic layer and the another inorganic layer.

15. The display panel according to claim 14 , wherein:
the at least one bank has a surface facing the substrate and an opposing surface, and
the at least one inorganic layer and the another inorganic layer are disposed on the opposing surface of the at least one bank, encapsulating the at least one bank.

16. A display apparatus, comprising:
a display panel,
wherein the display panel comprises:
a substrate including a display region and a non-display region;
a display element disposed in the display region of the substrate;
at least one bank disposed in the non-display region of the substrate and surrounding the display region; and
a thin film encapsulation layer including at least one inorganic layer, wherein:
the at least one bank includes a first inorganic layer, a first metal layer, a second inorganic layer, a second metal layer, and a third inorganic layer sequentially disposed on the substrate,
the first metal layer is encapsulated between, and in contact with, the first inorganic layer and the second inorganic layer,
the second metal layer is encapsulated between, and in contact with, the second inorganic layer and the third inorganic layer, and
the at least one inorganic layer in the thin film encapsulation layer is in contact with at least one of the first inorganic layer, the second inorganic layer or the third inorganic layer.

17. The display apparatus according to claim 16 , wherein:
the at least one bank has a thickness h of approximately 200 nm≤h≤4000 nm;
at least one of the first inorganic layer, the second inorganic layer or the third inorganic layer in the at least one bank has a thickness h 1 of approximately 100 nm≤h 1 ≤1000 nm and a width w 1 of approximately 10 μm≤w 1 ≤100 μm;
at least one of the first metal layer or the second metal layer in the at least one bank has a thickness h 2 of approximately 100 nm≤h 2 ≤500 nm and a width w 2 of approximately 1 μm≤w 1 ≤50 μm.

18. The display apparatus according to claim 16 , wherein:
the thin film encapsulation layer covers the display element; and
the at least one inorganic layer in the thin film encapsulation layer covers the at least one bank.

19. The display apparatus according to claim 16 , wherein:
the display element comprises a plurality of thin-film-transistors (TFTs) and a plurality of light-emitting elements; and
a TFT comprises a first insulating layer, a gate electrode, a second insulating layer, a source electrode, a drain electrode, and a third insulating layer, which are sequentially disposed on the substrate,
wherein
at least one of the first metal layer or the second metal layer in the at least one bank is disposed in a same layer as the gate electrode, the source electrode, the drain electrode, the first insulating layer, the second insulating layer, or the third insulating layer.

20. The display apparatus according to claim 16 , wherein:
the thin-film encapsulation layer further includes another inorganic layer and an organic layer, and
the organic layer is disposed between the at least one inorganic layer and the another inorganic layer.

Assignees

• Shanghai Tianma Am Oled Co Ltd
• Tianma Micro Electronics Co Ltd

Inventors

• Jin Jian
• Su Congyi

Classifications

• G09F9/30

  in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00) · CPC title

• G06F3/0488

  using a touch-screen or digitiser, e.g. input of commands through traced gestures · CPC title

• H01L27/3258

  Electricity · mapped topic

• H01L27/3246

  Electricity · mapped topic

• H01L51/5237 Primary

  Electricity · mapped topic