REFLECTOR PLATE AND MANUFACTURING METHOD THEREOF, BACKLIGHT MODULE AND MANUFACTURING METHOD THEREOF, DISPLAY DEVICE

• US 20200132915A1
• Filed: 10/21/2019
• Published: 04/30/2020
• Est. Priority Date: 10/26/2018
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Inventors: CHU, Hanqi, WANG, Yinan, XIE, Dengling
• Granted Patent: US 11,169,317 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 6/0055 Reflecting element, sheet or layer
• CPC Class Codes: G02B 6/0086 Positioning aspects

Abstract

A reflector plate and a manufacturing method thereof, a backlight module and a manufacturing method thereof, and a display device are provided. The reflector plate includes a metal reflective layer and an electrostatic adsorption prevention layer disposed on a side of the metal reflective layer. The electrostatic adsorption prevention layer is made of a polyester material and carries negative electrostatic charges.

Claims

1. A reflector plate, comprising a metal reflective layer and an electrostatic adsorption prevention layer disposed on a side of the metal reflective layer, wherein the electrostatic adsorption prevention layer is made of a polyester material and carries negative electrostatic charges.

2. The reflector plate of claim 1, wherein the electrostatic adsorption prevention layer has a thickness ranging from 75 μ

m to 150 μ

m.

3. The reflector plate of claim 2, wherein the electrostatic adsorption prevention layer has a thickness ranging from 75 μ

m to 125 μ

m.

4. The reflector plate of claim 3, further comprising a substrate and an adhesion layer, wherein the adhesion layer is disposed on the substrate, and the metal reflective layer is disposed on a side of the adhesion layer distal to the substrate.

5. The reflector plate of claim 4, wherein the metal reflective layer is made of silver.

6. A backlight module comprising the reflector plate of claim 1, and an optical component disposed on a side, distal to the metal reflective layer, of the electrostatic adsorption prevention layer of the reflector plate, wherein the optical component comprises a light guide plate and an optical layer, the light guide plate is disposed on the electrostatic adsorption prevention layer, and the optical layer is disposed on a side of the light guide plate distal to the electrostatic adsorption prevention layer.

7. The backlight module of claim 6, wherein the light guide plate is made of a polyester material.

8. The backlight module of claim 7, wherein the electrostatic adsorption prevention layer and the light guide plate are both made of a polycarbonate material.

9. The backlight module of claim 8, wherein the electrostatic adsorption prevention layer has a thickness ranging from 75 μ

m to 150 μ

m.

10. The backlight module of claim 9, wherein the electrostatic adsorption prevention layer has a thickness ranging from 75 μ

m to 125 μ

m.

11. The backlight module of claim 10, wherein the reflector plate comprises a substrate and an adhesion layer, the adhesion layer is disposed on the substrate, and the metal reflective layer is disposed on a side of the adhesion layer distal to the substrate.

12. The backlight module of claim 11, wherein the metal reflective layer is made of silver.

13. A display device comprising a display panel, and the backlight module of claim 6.

14. The display device of claim 13, wherein the light guide plate is made of a polyester material.

15. The display device of claim 14, wherein the electrostatic adsorption prevention layer and the light guide plate are both made of a polycarbonate material.

16. A manufacturing method for a reflector plate, comprising:

forming an adhesion layer on a substrate;

forming a metal reflective layer on the adhesion layer;

depositing or spraying a polyester material on the metal reflective layer to form an electrostatic adsorption prevention layer;

forming a protective layer on the electrostatic adsorption prevention layer; and

stripping off the protective layer from the electrostatic adsorption prevention layer such that the electrostatic adsorption prevention layer carries negative electrostatic charges.

17. The manufacturing method of claim 16, wherein

the depositing or spraying a polyester material on the metal reflective layer to form the electrostatic adsorption prevention layer comprises:

depositing or spraying a polycarbonate material on the metal reflective layer to form the electrostatic adsorption prevention layer;

the forming the protective layer on the electrostatic adsorption prevention layer comprises;

depositing or spraying a polyethylene material on the electrostatic adsorption prevention layer to form the protective layer.

18. The manufacturing method of claim 16, wherein

the depositing or spraying a polyester material on the metal reflective layer to form the electrostatic adsorption prevention layer comprises:

depositing or spraying a polycarbonate material on the metal reflective layer to form the electrostatic adsorption prevention layer;

the forming the protective layer on the electrostatic adsorption prevention layer comprises;

depositing or spraying a polyurethane material on the electrostatic adsorption prevention layer to form the protective layer.

19. The manufacturing method of claim 16, wherein

the depositing or spraying a polyester material on the metal reflective layer to form the electrostatic adsorption prevention layer comprises:

depositing or spraying a polycarbonate material on the metal reflective layer to form the electrostatic adsorption prevention layer;

the forming the protective layer on the electrostatic adsorption prevention layer comprises;

depositing or spraying an acrylic material on the electrostatic adsorption prevention layer to form the protective layer.

20. A manufacturing method for a backlight module, the backlight module comprising a reflector plate and an optical component, the optical component comprising a light guide plate and an optical layer, and the light guide plate being disposed on the reflector plate, wherein the manufacturing method for the backlight module comprises:

forming an adhesion layer on a substrate;

forming a metal reflective layer on the adhesion layer;

depositing or spraying a polyester material on the metal reflective layer to form an electrostatic adsorption prevention layer;

forming a protective layer on the electrostatic adsorption prevention layer;

stripping off the protective layer from the electrostatic adsorption prevention layer such that the electrostatic adsorption prevention layer carries negative electrostatic charges;

placing the light guide plate on the electrostatic adsorption prevention layer of the reflector plate from which the protective layer is stripped off; and

placing the optical layer on a side of the light guide plate distal to the electrostatic adsorption prevention layer.