DISPLAY MODULE AND POLARIZER THEREOF

• US 20200132901A1
• Filed: 12/15/2017
• Published: 04/30/2020
• Est. Priority Date: 12/15/2017
• Status: Abandoned Application

• Current Assignee: Huizhou China Star Optoelectronics Technology Co., Ltd.
• Original Assignee: Huizhou China Star Optoelectronics Technology Co., Ltd.
• Inventors: HAI, Bo
• Application Number:
  US15/752,490
• Publication Number:
  US 20200132901A1
• Time in Patent Office: Days
• CPC Class Codes: C09K 2323/03 Viewing layer characterised by chemical composition
• CPC Class Codes: G02B 1/14 Protective coatings, e.g. hard coatings
• CPC Class Codes: G02B 5/305 including organic materials, e.g. polymeric layers
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 2201/50 Protective arrangements

Abstract

The present invention provides a display module and a polarizer thereof. The polarizer includes a first adhesive layer, a polarizing layer, a second adhesive layer and a protective layer, the polarizing layer disposed between the first adhesive layer and the second adhesive layer, the second adhesive layer disposed between the polarizing layer and the protective layer, wherein a material of the polarizing layer is high temperature resistance and high humidity resistance polyvinyl alcohol to make a temperature resistance of the polarizer is not less than 60° C. and a humidity resistance is not less than 80%. The present invention provides another polarizer. The polarizer further includes a third adhesive layer and a compensation film layer. The third adhesive layer and the compensation film layer are disposed between the first adhesive layer and the polarizing layer. The compensation film layer is located between the first adhesive layer and the third adhesive layer.

Claims

1. A polarizer, comprising:

a first adhesive layer, a polarizing layer, a second adhesive layer and a protective layer, the polarizing layer disposed between the first adhesive layer and the second adhesive layer, the second adhesive layer disposed between the polarizing layer and the protective layer, wherein a material of the polarizing layer is high temperature resistance and high humidity resistance polyvinyl alcohol to make a temperature resistance of the polarizer is not less than 60°

C. and a humidity resistance is not less than 80%.

2. The polarizer according to claim 1, wherein the humidity resistance is not less than 90%.

3. The polarizer according to claim 1, wherein a thickness of the polarizing layer is 10-20 μ

m, and/or a thickness of the protective layer is 10-20 μ

m.

4. The polarizer according to claim 2, wherein a thickness of the polarizing layer is 10-20 μ

m, and/or a thickness of the protective layer is 10-20 μ

m.

5. The polarizer according to claim 1, wherein a material of the first adhesive layer is a pressure sensitive adhesive, the pressure sensitive adhesive is a soft pressure sensitive adhesive, and/or a material of the protective layer is selected from a material with thermal expansion coefficient lower than the thermal expansion coefficient of TAO, and/or a material of the second adhesive layer is UV adhesive.

6. The polarizer according to claim 2, wherein a material of the first adhesive layer is a pressure sensitive adhesive, the pressure sensitive adhesive is a soft pressure sensitive adhesive, and/or a material of the protective layer is selected from a material with thermal expansion coefficient lower than the thermal expansion coefficient of TAC, and/or a material of the second adhesive layer is UV adhesive.

7. A polarizer, comprising:

a first adhesive layer, a polarizing layer, a second adhesive layer, a third adhesive layer, a compensation film layer and a protective layer, the polarizing layer disposed between the first adhesive layer and the second adhesive layer, the second adhesive layer disposed between the polarizing layer and the protective layer, the third adhesive layer and the compensation film layer disposed between the first adhesive layer and the polarizing layer, the compensation film layer disposed between the first adhesive layer and the third adhesive layer, wherein a material of the polarizing layer is high temperature resistance polyvinyl alcohol to make a temperature resistance of the polarizer is not less than 60°

C.

8. The polarizer according to claim 7, wherein the temperature resistance of the polarizer is not less than 80°

C.

9. The polarizer according to claim 7, wherein materials of the second adhesive layer and the third adhesive layer are UV adhesive.

10. The polarizer according to claim 9, wherein a thickness of the polarizing layer is 10-20 μ

m, and/or a thickness of the compensation film layer is 20-40 μ

m, and/or a thickness of the protective layer is 10-20 μ

m.

11. The polarizer according to claim 9, wherein a material of the first adhesive layer is a pressure sensitive adhesive, the pressure sensitive adhesive is a soft pressure sensitive adhesive, and/or a material of the protective layer is selected from a material with thermal expansion coefficient lower than the thermal expansion coefficient of TAC.

12. A display module comprising a first polarizer, a second polarizer, and a display layer disposed between the first polarizer and the second polarizer, each of the first polarizer and the second polarizer comprising a first adhesive layer, a polarizing layer, a second adhesive layer and a protective layer, the polarizing layer disposed between the first adhesive layer and the second adhesive layer, the second adhesive layer disposed between the polarizing layer and the protective layer, wherein a material of the polarizing layer is high temperature resistance and high humidity resistance polyvinyl alcohol to make a temperature resistance of the polarizer is not less than 60°

C. and a humidity resistance is not less than 80%, or each of the first polarizer and the second polarizer comprising a first adhesive layer, a polarizing layer, a second adhesive layer, a third adhesive layer, a compensation film layer and a protective layer, the polarizing layer disposed between the first adhesive layer and the second adhesive layer, the second adhesive layer disposed between the polarizing layer and the protective layer, the third adhesive layer and the compensation film layer disposed between the first adhesive layer and the polarizing layer, the compensation film layer disposed between the first adhesive layer and the third adhesive layer, wherein a material of the polarizing layer is high temperature resistance polyvinyl alcohol to make a temperature resistance of the polarizer is not less than 60°

C.

13. The display module according to claim 12, wherein each of the first polarizer and the second polarizer comprises the first adhesive layer, the polarizing layer, the second adhesive layer and the protective layer, the polarizing layer is disposed between the first adhesive layer and the second adhesive layer, the second adhesive layer is disposed between the polarizing layer and the protective layer, the material of the polarizing layer is high temperature resistance and high humidity resistance polyvinyl alcohol to make the temperature resistance of the polarizer is not less than 60°

C., the humidity resistance is not less than 80% and the humidity resistance is not less than 90%.

14. The display module according to claim 12, wherein each of the first polarizer and the second polarizer comprises the first adhesive layer, the polarizing layer, the second adhesive layer and the protective layer, the polarizing layer is disposed between the first adhesive layer and the second adhesive layer, the second adhesive layer is disposed between the polarizing layer and the protective layer, the material of the polarizing layer is high temperature resistance and high humidity resistance polyvinyl alcohol to make the temperature resistance of the polarizer is not less than 60°

C., the humidity resistance is not less than 80% and a thickness of the polarizing layer is 10-20 μ

m, and/or a thickness of the protective layer is 10-20 μ

m.

15. The display module according to claim 12, wherein each of the first polarizer and the second polarizer comprises the first adhesive layer, the polarizing layer, the second adhesive layer and the protective layer, the polarizing layer is disposed between the first adhesive layer and the second adhesive layer, the second adhesive layer is disposed between the polarizing layer and the protective layer, the material of the polarizing layer is high temperature resistance and high humidity resistance polyvinyl alcohol to make the temperature resistance of the polarizer is not less than 60°

C., the humidity resistance is not less than 80% and a material of the first adhesive layer is a pressure sensitive adhesive, the pressure sensitive adhesive is a soft pressure sensitive adhesive, and/or a material of the protective layer is selected from a material with thermal expansion coefficient lower than the thermal expansion coefficient of TAC, and/or a material of the second adhesive layer is UV adhesive.

16. The display module according to claim 12, wherein each of the first polarizer and the second polarizer comprises the first adhesive layer, the polarizing layer, the second adhesive layer, the third adhesive layer, the compensation film layer and the protective layer, the polarizing layer is disposed between the first adhesive layer and the second adhesive layer, the second adhesive layer is disposed between the polarizing layer and the protective layer, the third adhesive layer and the compensation film layer are disposed between the first adhesive layer and the polarizing layer, the compensation film layer are disposed between the first adhesive layer and the third adhesive layer, wherein the material of the polarizing layer is high temperature resistance polyvinyl alcohol to make the temperature resistance of the polarizer is not less than 60°

C. and the temperature resistance of the polarizer is not less than 80°

C.

17. The display module according to claim 12, wherein each of the first polarizer and the second polarizer comprises the first adhesive layer, the polarizing layer, the second adhesive layer, the third adhesive layer, the compensation film layer and the protective layer, the polarizing layer is disposed between the first adhesive layer and the second adhesive layer, the second adhesive layer is disposed between the polarizing layer and the protective layer, the third adhesive layer and the compensation film layer are disposed between the first adhesive layer and the polarizing layer, the compensation film layer are disposed between the first adhesive layer and the third adhesive layer, wherein the material of the polarizing layer is high temperature resistance polyvinyl alcohol to make the temperature resistance of the polarizer is not less than 60°

C. and materials of the second adhesive layer and the third adhesive layer are UV adhesive.

18. The display module according to claim 17, wherein a thickness of the polarizing layer is 10-20 μ

m, and/or a thickness of the compensation film layer is 20-40 μ

m, and/or a thickness of the protective layer is 10-20 μ

m.

19. The display module according to claim 17, wherein a material of the first adhesive layer is a pressure sensitive adhesive, the pressure sensitive adhesive is a soft pressure sensitive adhesive, and/or a material of the protective layer is selected from a material with thermal expansion coefficient lower than the thermal expansion coefficient of TAC.