Anti-static film for display

• US 20020018163A1
• Filed: 05/01/2001
• Published: 02/14/2002
• Est. Priority Date: 05/02/2000
• Status: Abandoned Application

• Current Assignee: Tomoegawa Paper Company Limited
• Original Assignee: Tomoegawa Paper Company Limited
• Inventors: Yamamoto, Tomohisa, Murata, Chikara
• Application Number:
  US09/845,255
• Publication Number:
  US 20020018163A1
• Time in Patent Office: Days
• US Class Current: 349/122
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133334 Electromagnetic shields
• CPC Class Codes: G02F 1/133502 Antiglare, refractive index matching layers
• CPC Class Codes: G02F 2202/22 Antistatic materials or arrangements
• CPC Class Codes: H01J 2211/446 Electromagnetic shielding means; Antistatic means

Abstract

The present invention provides an anti-static film provided with a hard coat layer in which superior optical properties, physical properties, and anti-static properties are maintained, and in addition, in which reflectivity is reduced and interference unevenness is prevented. The anti-static film is produced by providing a hard coat layer on the surface of a transparent substrate directly or via another layer, in which the hard coat layer contains at least resin, conductive material, and low refractive index material, surface electric resistance thereof is 1.0×10¹¹ Ω/□ or less, and the Y value thereof obtained by 5 degree specular reflectance is 4.0% or less.

Claims

1. An anti-static film for a display, comprising a hard coat layer provided on the surface of a transparent substrate directly or via another layer, wherein said hard coat layer contains at least resin, conductive material, and low refractive index material, surface electric resistance thereof is 1.0×

10¹¹ Ω

/□

or less, and the Y value thereof obtained by 5 degree specular reflectance is 4.0% or less.

2. An anti-static film for a display, in accordance with claim 1, wherein said low refractive index material has a particle size of 5 to 500 nm.

3. An anti-static film for a display, in accordance with claim 1, wherein said low refractive index material is contained at 15 to 200 weight parts to 100 weight parts of said conductive material.

4. An anti-static film for a display, in accordance with claim 1, wherein said low refractive index material is silica sol.

5. An anti-static film for a display, in accordance with claim 2, wherein said low refractive index material is silica sol.

6. An anti-static film for a display, in accordance with claim 3, wherein said low refractive index material is silica sol.

7. An anti-static film for a display, in accordance with claim 1, wherein said conductive material is metal oxide particles.

8. An anti-static film for a display, in accordance with claim 2, wherein said conductive material is metal oxide particles.

9. An anti-static film for a display, in accordance with claim 3, wherein said conductive material is metal oxide particles.

10. An anti-static film for a display, in accordance with claim 4, wherein said conductive material is metal oxide particles.

11. An anti-static film for a display, in accordance with claim 1, wherein an adhesion layer is further provided on a surface, in which said hard coat layer is not provided, of said transparent substrate, at least two layers of said layers are colored, and said colors are made to be achromatic by mixing.

12. An anti-static film for a display, in accordance with claim 2, wherein an adhesion layer is further provided on a surface, in which said hard coat layer is not provided, of said transparent substrate, at least two layers of said layers are colored, and said colors are made to be achromatic by mixing.

13. An anti-static film for a display, in accordance with claim 3, wherein an adhesion layer is further provided on a surface, in which said hard coat layer is not provided, of said transparent substrate, at least two layers of said layers are colored, and said colors are made to be achromatic by mixing.

14. An anti-static film for a display, in accordance with claim 4, wherein an adhesion layer is further provided on a surface, in which said hard coat layer is not provided, of said transparent substrate, at least two layers of said layers are colored, and said colors are made to be achromatic by mixing.

15. An anti-static film for a display, in accordance with claim 7, wherein an adhesion layer is further provided on a surface, in which said hard coat layer is not provided, of said transparent substrate, at least two layers of said layers are colored, and said colors are made to be achromatic by mixing.