Organic light-emitting display panel, device and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-10566394-B2
Application number	US-201715804905-A
Country	US
Kind code	B2
Filing date	Nov 6, 2017
Priority date	Mar 28, 2017
Publication date	Feb 18, 2020
Grant date	Feb 18, 2020

Abstract

Disclosed is an organic light-emitting display panel, which comprises a substrate, the substrate comprises a display region and a non-display region, wherein, the non-display region comprises: an insulating layer, which is provided on the same side as the array layer and provided with at least one groove by which the substrate is exposed; a metal layer, which comprises a first part and a second part, the first part covers the groove and contacts the substrate at the bottom of the groove, and the second part covers an outside of the groove and contacts the insulating layer; and at least one bank, contacting the second part, and wherein the bank comprises an organic material.

First claim

What is claimed is:

1. An organic light-emitting display panel, comprising:
a substrate, comprising a display region and a non-display region,
wherein the display region comprises:
an array layer disposed on the substrate;
an organic light-emitting device, disposed on the array layer, wherein the organic light-emitting device successively comprises a planarization layer, a first electrode, a light-emitting layer, a second electrode, and a pixel defining layer provided between the first electrode and the second electrode to partition the light-emitting layer into light-emitting pixels; and
an encapsulation film, disposed on the second electrode layer;

wherein, the non-display region comprises:
an insulating layer, disposed on the substrate, wherein the insulating layer comprises a groove, wherein a bottom of the groove exposes the substrate, and wherein the insulating layer comprises an inorganic material;
a metal layer, wherein at least a part of the metal layer is disposed on one side of the insulating layer facing away from the substrate, wherein the metal layer comprises a first part and a second part, wherein the first part of the metal layer covers side walls and the bottom of the groove and directly contacts the substrate at the bottom of the groove, wherein the second part of the metal layer is disposed on the insulating layer outside the groove, wherein the second part of the metal layer comprises a first portion and a second portion; and
at least one bank, disposed directly on the second part of the metal layer facing away from the substrate wherein the at least one bank comprises an organic material;
wherein the bank does not overlap with the first part of the metal layer; and wherein the bank is disposed on the first portion of the second part of the metal layer, and wherein a projection of the bank on the substrate is fully enclosed within a projection of the first portion of the second part of the metal layer on the substrate.

2. The organic light-emitting display panel in claim 1 , wherein
the array layer on the substrate successively comprises a first insulating layer, an active layer, a second insulating layer, a first metal layer, a third insulating layer and a second metal layer, wherein the second metal layer connects the active layer by a via hole, wherein the insulating layer comprises a portion made on the same process as at least one of the first insulating layer, the second insulating layer and the third insulating layer, and wherein the metal layer comprises a portion made on the same process as at least one of the first metal layer and the second metal layer.

3. The organic light-emitting display panel in claim 1 , wherein
the array layer on the substrate successively comprises a first insulating layer, a first metal layer, a second insulating layer, an active layer, a third insulating layer and a second metal layer, wherein the second metal layer is connected with the active layer by a via hole, the insulating layer comprises a portion made on the same process as at least one of the first insulating layer, the second insulating layer and the third insulating layer, and wherein the metal layer comprises a portion made on the same process as at least one of the first metal layer and the second metal layer.

4. The organic light-emitting display panel in claim 2 ,
wherein the insulating layer comprises a portion made on the same process as the first insulating layer, and wherein the metal layer comprises a portion made on the same process as at least one of the first metal layer and the second metal layer.

5. The organic light-emitting display panel in claim 2 ,
wherein the insulating layer comprise a portion made on the same process as the first insulating layer and a portion made on the same process as the second insulating layer, and wherein the metal layer comprises a portion made on the same process as at least one of the first metal layer and the second metal layer.

6. The organic light-emitting display panel in claim 3 ,
wherein the insulating layer comprise a portion made on the same process as the first insulating layer and a portion made on the same process as the second insulating layer, and wherein the metal layer comprises a portion made on the same process as the second metal layer.

7. The organic light-emitting display panel in claim 6 ,
wherein the portion made on the same process as the first insulating layer, the portion made on the same process as the first metal layer and the portion made on the same process as the second insulating layer are successively disposed between the substrate and the second part.

8. The organic light-emitting display panel in claim 2
wherein, the insulating layer comprise a portion made on the same process as the first insulating layer, a portion made on the same process as the second insulating layer and a portion made on the same process as the third insulating layer, and wherein the metal layer comprises a portion made on the same process as the second metal layer.

9. The organic light-emitting display panel in claim 8 , wherein
a portion made on the same process as the first metal layer is further located between the substrate and the second part.

10. The organic light-emitting display panel in claim 1 , wherein
the bank comprises a portion made on the same process as at least one of the planarization layer and the pixel defining layer.

11. The organic light-emitting display panel in claim 10 ,
wherein a supporting layer is disposed on the pixel defining layer; and wherein the bank comprises a portion made on the process as at least one of the planarization layer, the pixel defining layer and the supporting layer.

12. The organic light-emitting display panel in claim 11 , wherein
the bank successively from bottom up comprises a portion made on the same process as the planarization layer, a portion made on the same process as the pixel defining layer and a portion made on the same process as the supporting layer.

13. The organic light-emitting display panel in any one of claim 1 , wherein
a groove is provided at both sides of the bank.

14. The organic light-emitting display panel in claim 13 , further comprising two banks.

15. The organic light-emitting display panel in claim 1 , wherein
the non-display region of the substrate further comprises a fan-shaped wiring region, wherein the bank is not disposed in the fan-shaped wiring region.

16. The organic light-emitting display panel in claim 15 , wherein
a projection pattern of the bank in a direction perpendicular to the substrate comprises at least one of a bar shape, a saw tooth shape and a polygonal line shape.

17. The organic light-emitting display panel in claim 1 , wherein
the encapsulation film comprises at least one organic encapsulation layer and at least one inorganic encapsulation layer, wherein the at least one inorganic encapsulation layer covers the metal layer in the groove.

18. The organic light-emitting display panel in claim 17 ,
wherein the encapsulation film successively from bottom up comprises a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer;
wherein, the at least one bank comprises two banks, a first bank of the two banks is displaced farther away from the display region than the second bank and wherein the second bank has a groove at each side;
wherein the first inorganic encapsulation layer covers the second bank and the groove, wherein the organic encapsulation layer is located between the second bank a

Assignees

• Shanghai Tianma Micro Elect Co

Inventors

• Cai Xiaobo

Classifications

• H01L27/3276

  Electricity · mapped topic

• H01L51/5253

  Electricity · mapped topic

• H01L27/3258

  Electricity · mapped topic

• H01L51/56

  Electricity · mapped topic

• H01L2227/323

  Electricity · mapped topic