Anti-glare/antireflection member and method for producing same

Patent metadata

Field	Value
Publication number	US-9703012-B2
Application number	US-201615283509-A
Country	US
Kind code	B2
Filing date	Oct 3, 2016
Priority date	Aug 31, 2012
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

Provided is an anti-glare/antireflection member having excellent visibility. The anti-glare/antireflection member ( 1 ) includes a base material ( 10 ) and an antireflection layer ( 20 ). The base material ( 10 ) is provided in a surface layer thereof with an anti-glare layer ( 10 a ) having a concavo-convex configuration. The antireflection layer ( 20 ) is provided on the anti-glare layer ( 10 a ).

First claim

The invention claimed is:

1. An anti-glare/antireflection member comprising:
a base material provided in a surface layer thereof with an anti-glare layer having a concavo-convex configuration; and
an antireflection layer provided on the anti-glare layer;
wherein the base material comprises:
a base material body having first and second principal surfaces opposed to each other; and
an island layer including a plurality of islands provided on the second principal surface and forming the anti-glare layer; and
wherein the island layer covers part of the second principal surface so that the antireflection layer is in direct contact with both of the islands of the island layer and the portions of the second principal surface.

2. The anti-glare/antireflection member according to claim 1 , wherein the base material body is formed of a resin film, a glass film, a resin plate or a glass plate.

3. The anti-glare/antireflection member according to claim 2 , wherein the glass plate is made of an alkali-free glass substrate, a soda-lime glass substrate, or a chemically tempered glass substrate.

4. The anti-glare/antireflection member according to claim 1 , further comprising another antireflection layer provided on the first principal surface.

5. The anti-glare/antireflection member according to claim 1 , wherein the antireflection layer is formed of a low-refractive index layer having a lower refractive index than the base material.

6. The anti-glare/antireflection member according to claim 1 , wherein the antireflection layer is formed of a structure in which low-refractive index layers having a relatively low refractive index and high-refractive index layers having a relatively high refractive index are alternately deposited.

7. The anti-glare/antireflection member according to claim 1 , further comprising an antifouling layer containing fluorine and provided on the antireflection layer.

8. The anti-glare/antireflection member according to claim 1 , wherein the island layer is made of at least one of SiO 2 , TiO 2 , Al 2 O 3 , and ZrO 2 .

9. The anti-glare/antireflection member according to claim 1 , wherein the base material is composed of an inorganic material.

10. The anti-glare/antireflection member according to claim 1 , further comprising a pressure-sensitive adhesive layer or an adhesive layer provided on the first principal surface.

11. A method for producing the anti-glare/antireflection member according to claim 1 , wherein a light-transmissive material is applied on a surface of a light-transmissive plate by spraying to form an island layer thereon, thus preparing the base material composed of the light-transmissive plate and the island layer.

12. The method for producing the anti-glare/antireflection member according to claim 11 , wherein the antireflection layer is formed by sputtering.

13. A method for producing the anti-glare/antireflection member according to claim 1 , wherein a surface of a light-transmissive plate is blasted to form the concavo-convex configuration, thus preparing the base material.

14. The method for producing the anti-glare/antireflection member according to claim 13 , wherein the surface of the light-transmissive plate is etched after being blasted.

15. The method for producing the anti-glare/antireflection member according to claim 13 , wherein the antireflection layer is formed by sputtering.

Assignees

• Nippon Electric Glass Co

Inventors

• Sahara Keiichi
• Sakurai Takeshi
• Kanai Toshimasa
• Ikegami Koji

Classifications

• G02B1/11 Primary

  Anti-reflection coatings · CPC title

• B24C1/06

  for producing matt surfaces, e.g. on plastic materials, on glass · CPC title

• G02B1/115 Primary

  Multilayers · CPC title

• G02B1/18

  Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films (G02B1/16 takes precedence) · CPC title

• G02B1/118 Primary

  having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures · CPC title