ELECTRODE EXHAUST STRUCTURE, ELECTRODE, DISPLAY PANEL AND MANUFACTURING METHOD THEREFOR, AND DISPLAY APPARATUS

• US 20200136081A1
• Filed: 02/11/2019
• Published: 04/30/2020
• Est. Priority Date: 03/30/2018
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd., Chengdu BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd., Chengdu BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Inventors: ZHAO, Pan, JIANG, Zhiliang
• Granted Patent: US 11,588,128 B2
• Time in Patent Office: Days
• CPC Class Codes: H10K 50/813 characterised by their shape
• CPC Class Codes: H10K 59/80515 characterised by their shape
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 71/60 Forming conductive regions or layers, e.g. electrodes
• CPC Class Codes: H10K 71/621 Providing a shape to conductive layers, e.g. patterning or selective deposition

Abstract

The disclosure relates to an electrode exhaust structure, an electrode, a display panel and a fabrication method thereof, a display device. The electrode exhaust structure includes first exhaust holes arrayed in a matrix and arranged on an electrode, and second exhaust holes arrayed in a matrix and arranged on the electrode. A column of the second exhaust holes are arranged between adjacent columns of the first exhaust holes, and a row of the second exhaust holes are arranged between adjacent rows of the first exhaust holes; the length of the second exhaust hole in the row direction is greater than or equal to the distance between the adjacent columns of the first exhaust holes; and the length of the second exhaust hole in the column direction is greater than or equal to the distance between the adjacent rows of the first exhaust holes.

Claims

1. An electrode exhaust structure, comprising:

first exhaust holes arrayed in a matrix and arranged on an electrode; and

second exhaust holes arrayed in a matrix and arranged on the electrode;

wherein a column of the second exhaust holes are arranged between adjacent columns of the first exhaust holes, and a row of the second exhaust holes are arranged between adjacent rows of the first exhaust holes;

in a row direction, a length of the second exhaust hole is greater than or equal to a minimum distance between the adjacent columns of the first exhaust holes; and

in a column direction, the length of the second exhaust hole is greater than or equal to a minimum distance between the adjacent rows of the first exhaust holes.

2. The electrode exhaust structure according to claim 1, wherein the first exhaust hole and the second exhaust hole are of centrosymmetric shapes.

3. The electrode exhaust structure according to claim 2, wherein the first exhaust hole and the second exhaust hole are roughly of rectangles.

4. The electrode exhaust structure according to claim 3, wherein the first exhaust hole and the second exhaust hole are roughly of squares;

wherein first and third edges of the first exhaust hole are parallel to the row direction, and second and fourth edges of the first exhaust hole are parallel to the column direction; and

four edges of the second exhaust hole each has an included angle of about 45 degrees with respect to the row direction.

5. The electrode exhaust structure according to claim 2, wherein the first exhaust hole is roughly of a rectangle and the second exhaust hole is roughly of a circle;

or both of the first exhaust hole and the second exhaust hole are roughly of circles.

6. The electrode exhaust structure according to claim 1, wherein an area of each of the first exhaust holes is equal to an area of each of the second exhaust holes.

7. The electrode exhaust structure according to claim 1, wherein a center of the second exhaust hole is configured at a position from which distances to centers of four second exhaust holes adjacent thereto are approximately equal.

12. A fabrication method of a display panel, comprising:

forming an organic material layer on a substrate;

forming a first electrode on the organic material layer, wherein the electrode exhaust structure of claim 1 is formed in the first electrode in the process of forming the first electrode.

13. The fabrication method according to claim 12, wherein the forming the first electrode on the organic material layer comprises:

forming the first electrode on the organic material layer by an evaporation process.

14. The fabrication method according to claim 12, wherein the forming the electrode exhaust structure of claim 1 in the first electrode in the process of forming the first electrode comprises:

forming the first electrode and the electrode exhaust structure in the first electrode simultaneously by using a single patterning process.

8. An electrode, comprising an electrode exhaust structure, wherein the electrode exhaust structure comprises:

first exhaust holes arrayed in a matrix and arranged on an electrode; and

second exhaust holes arrayed in a matrix and arranged on the electrode;

wherein a column of the second exhaust holes are arranged between adjacent columns of the first exhaust holes, and a row of the second exhaust holes are arranged between adjacent rows of the first exhaust holes;

in a row direction, a length of the second exhaust hole is greater than or equal to a minimum distance between the adjacent columns of the first exhaust holes; and

in a column direction, the length of the second exhaust hole is greater than or equal to a minimum distance between the adjacent rows of the first exhaust holes.

9. A display panel, comprising the electrode according to claim 8.

10. The display panel according to claim 9, wherein the display panel further comprises:

a substrate; and

an organic material layer arranged on the substrate;

wherein the electrode is arranged on the organic material layer, and the electrode exhaust structure on the electrode overlaps with the organic material layer.

11. The display panel according to claim 9, wherein the display panel comprises:

an effective display area; and

a non-display area arranged around the effective display area;

wherein the electrode comprises a function part located in the effective display area, and an auxiliary part located in the non-display area; and

the electrode exhaust structure is located on the auxiliary part.

15. A display device, comprising the display panel of claim 9.