Printing base and inkjet printing method

• US 10,005,273 B2
• Filed: 07/20/2015
• Issued: 06/26/2018
• Est. Priority Date: 03/25/2015
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Hu, Chunjing, Sun, Li
• Primary Examiner(s): MRUK, GEOFFREY S
• Application Number:
  US14/913,287
• Publication Number:
  US 20170036461A1
• Time in Patent Office: 1,072 Days
• CPC Class Codes: B41J 11/0015 for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing selective coating B41J2/2114
• CPC Class Codes: B41J 2/01 Ink jet
• CPC Class Codes: B41M 5/0011 Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating after-treatment of prints B41M7/00; printers for treating or overcoating copy materials before, during or after printing B41J11/0015
• CPC Class Codes: H10K 59/88 Dummy elements, i.e. elements having non-functional features
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 71/135 using ink-jet printing
• CPC Class Codes: H10K 71/441 in the presence of solvent vapors, e.g. solvent vapour annealing
• CPC Class Codes: H10K 99/00 Subject matter not provided for in other groups of this subclass

Abstract

A printing base comprises: a carrying base, an extension base, a vacuum pump and a gas injection valve; the extension base is located at the periphery of the carrying base; the surface of the carrying base has at least one absorbing hole for absorbing the substrate, and the surface of the extension base has at least one injecting hole. By adding a extension base at the periphery of the carrying base, the invention can avoid the provision of test area at the periphery of the display area on the substrate, and increase the area of the display area, and in turn reduce the bezel width of the liquid crystal display panel.

Claims

1. A printing base comprising:

a carrying base, an extension base, a vacuum pump and a gas injection valve;

the extension base is located at the periphery of the carrying base;

a surface of the carrying base has at least one absorbing hole for absorbing a substrate, and a surface of the extension base has multiple injecting holes;

the vacuum pump is connected with the absorbing holes, and the gas injection valve is connected with the multiple injecting holes, and is used for injecting a gas comprising at least a solvent gas for inkjet printing from the multiple injecting holes to the periphery of the carrying base, to form a solvent atmosphere at the periphery of the substrate on the carrying base and make the drying atmospheres of edge pixels and center pixels in the substrate consistent,

wherein the multiple injecting holes are disposed on the carrying base in an array to form a plurality of rings of injecting holes, wherein at least one ring of injecting holes at the periphery incline towards the center of the carrying base by a preset angle relative to the surface of the carrying base, and the other injecting holes are vertical relative to the surface of the carrying base.

2. The printing base according to claim 1, wherein at least one injecting hole inclines towards the center of the carrying base by a preset angle, relative to the surface of the carrying base.

3. The printing base according to claim 2, wherein the preset angle is smaller than or equal to 60 degrees.

4. The printing base according to claim 3, wherein the width of the extension base ranges from 5 to 10 centimeters.

5. An inkjet printing method employing the printing base according to claim 3, therein, the method comprises:

by at least one absorbing hole connected to a vacuum pump, absorb a substrate on a carrying base at which the at least one absorbing hole is located;

Inject a solution for inkjet printing to a display area of the substrate absorbed on the carrying base, to form pixels of the display area;

by at least one injecting hole connected to the gas injection valve, inject a gas comprising at least a solvent gas for inkjet printing to the periphery of the carrying base, to form a solvent atmosphere at the periphery of the substrate absorbed on the carrying base, and make the drying atmospheres of the edge pixels and center pixels of on the substrate being consistent.

6. The printing base according to claim 2, wherein the width of the extension base ranges from 5 to 10 centimeters.

7. An inkjet printing method employing the printing base according to claim 2, therein, the method comprises:

by at least one absorbing hole connected to a vacuum pump, absorb a substrate on a carrying base at which the at least one absorbing hole is located;

Inject a solution for inkjet printing to a display area of the substrate absorbed on the carrying base, to form pixels of the display area;

by at least one injecting hole connected to the gas injection valve, inject a gas comprising at least a solvent gas for inkjet printing to the periphery of the carrying base, to form a solvent atmosphere at the periphery of the substrate absorbed on the carrying base, and make the drying atmospheres of the edge pixels and center pixels of on the substrate being consistent.

8. The printing base according to claim 1, wherein the gas injection valve comprises a first gas injection valve and a second gas injection valve, and the gas injected by the first gas injection valve is an inertia gas, and the gas injected by the second gas injection valve is a solvent gas for inkjet printing.

9. An inkjet printing method employing the printing base according to claim 8, therein, the method comprises:

by at least one absorbing hole connected to a vacuum pump, absorb a substrate on a carrying base at which the at least one absorbing hole is located;

inject a solution for inkjet printing to a display area of the substrate absorbed on the carrying base, to form pixels of the display area;

by at least one injecting hole connected to the first and second gas injection valves, inject an inertia gas and a solvent gas for inkjet printing to the periphery of the carrying base, to form a solvent atmosphere at the periphery of the substrate absorbed on the carrying base, and make the drying atmospheres of the edge pixels and center pixels of on the substrate being consistent.

10. The printing base according to claim 1, wherein the width of the extension base ranges from 5 to 10 centimeters.

11. The printing base according to claim 1 wherein the width of the extension base ranges from 5 to 10 centimeters.

12. The printing base according to claim 1 wherein the width of the extension base ranges from 5 to 10 centimeters.

13. The printing base according to claim 1, wherein the width of the extension base ranges from 5 to 10 centimeters.

14. An inkjet printing method employing the printing base according to claim 1, wherein the method comprises:

by at least one absorbing hole connected to a vacuum pump, absorb a substrate on a carrying base at which the at least one absorbing hole is located;

Inject a solution for inkjet printing to a display area of the substrate absorbed on the carrying base, to form pixels of the display area;

by at least one injecting hole connected to the gas injection valve, inject a gas comprising at least a solvent gas for inkjet printing to the periphery of the carrying base, to form a solvent atmosphere at the periphery of the substrate absorbed on the carrying base, and make the drying atmospheres of the edge pixels and center pixels of on the substrate being consistent.

15. The method according to claim 14, therein, the gas injected to the periphery of the carrying base comprises a gas mixture mixed by both an inertia gas and a solvent gas for inkjet printing.

16. An inkjet printing method employing the printing base according to claim 1, therein, the method comprises:

by at least one absorbing hole connected to a vacuum pump, absorb a substrate on a carrying base at which the at least one absorbing hole is located;

Inject a solution for inkjet printing to a display area of the substrate absorbed on the carrying base, to form pixels of the display area;

by at least one injecting hole connected to the gas injection valve, inject a gas comprising at least a solvent gas for inkjet printing to the periphery of the carrying base, to form a solvent atmosphere at the periphery of the substrate absorbed on the carrying base, and make the drying atmospheres of the edge pixels and center pixels of on the substrate being consistent.

17. An inkjet printing method employing the printing base according to claim 1, therein, the method comprises:

by at least one absorbing hole connected to a vacuum pump, absorb a substrate on a carrying base at which the at least one absorbing hole is located;

Inject a solution for inkjet printing to a display area of the substrate absorbed on the carrying base, to form pixels of the display area;

by at least one injecting hole connected to the gas injection valve, inject a gas comprising at least a solvent gas for inkjet printing to the periphery of the carrying base, to form a solvent atmosphere at the periphery of the substrate absorbed on the carrying base, and make the drying atmospheres of the edge pixels and center pixels of on the substrate being consistent.