# US 11,110,673 B2 · Method of forming antireflection optical body, and display panel

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- Number: US 11,110,673 B2
- Document ID: US11110673B2
- Status: Granted
- Kind: B2
- Application number: 16/062,818
- Filed: 2016-12-16
- Published: 2019-05-30
- Granted: 2021-09-07
- Earliest claimed: 2015-12-18
- Assignees: Dexerials Corporation
- Applicants: Dexerials Corporation
- Inventors: Shunichi Kajiya
- Web page: https://patentgrep.com/patent/US11110673B2

## CPC

- G02B 1/111: using layers comprising organic materials
- B29D 11/0074: {Production of other optical elements not provided for in B29D11/00009- B29D11/0073}
- B32B 7/023: Optical properties
- B32B 7/06: permitting easy separation
- B32B 9/00: Layered products comprising a {layer of a} particular substance not covered by groups B32B11/00 - B32B29/00
- B32B 17/10165: {Functional features of the laminated safety glass or glazing}
- B32B 17/10587: {created by embossing}
- B32B 17/10743: {containing acrylate (co)polymers or salts thereof}
- C09J 5/00: Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J 133/14: of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
- C09J 201/00: Adhesives based on unspecified macromolecular compounds
- G02B 1/118: having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures
- B29K 2033/04: Polymers of esters
- C09J 2433/00: Presence of (meth)acrylic polymer
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

## Abstract

A method of forming an antireflection optical body (16a) includes: an application step of applying an adhesive (12) other than an epoxy adhesive onto an adherend (11); a fixing step of pressing a substrate film (15) having a fine structure body (16) at one surface side thereof against the adherend (11) from an opposite surface side to the one surface side to fix the adherend (11) and the fine structure body (16) through the adhesive (12); and a peeling separation step of releasing the pressing of the substrate film (15) and peeling fixed fine structure body (16) that is fixed to the adherend (11) through the adhesive (12) from the substrate film (15) while separating the fixed fine structure body (16) from fine structure body (16) on the substrate film (15) at a location where the fine structure body (16) is fixed to the adherend (11) such that the fixed fine structure body (16) is formed on the adherend (11) as an antireflection optical body (16a).

## Claims

### Claim 1

A method of forming an antireflection optical body on an adherend, comprising:
an application step of applying an adhesive other than an epoxy adhesive onto the adherend;
a fixing step of pressing a substrate film having a fine structure body at one surface side thereof against the adherend from an opposite surface side to the one surface side to fix the adherend and the fine structure body through the adhesive to create a fixed fine structure body; and
a peeling separation step of releasing the pressing of the substrate film and peeling the fixed fine structure body that is fixed to the adherend through the adhesive from the substrate film while separating the fixed fine structure body from the fine structure body on the substrate film at a location where the fine structure body is fixed to the adherend such that the fixed fine structure body is formed on the adherend as an antireflection optical body.

### Claim 2 (depends on 1)

The method of forming an antireflection optical body according to claim 1, wherein
the adhesive is a cyanoacrylate adhesive, a UV curable resin, or a cyanoacrylate UV curable adhesive.

### Claim 3 (depends on 1)

The method of forming an antireflection optical body according to claim 1, wherein
the fine structure body has a recess-protrusion pattern with a pitch that is not more than visible light wavelength.

### Claim 4 (depends on 1)

The method of forming an antireflection optical body according to claim 1, wherein
a fine recess-protrusion layer having a recess-protrusion pattern that is reverse of the recess-protrusion pattern of the fine structure body is located on the substrate film,
an inorganic film is located on the fine recess-protrusion layer, and
the fine structure body is located on the inorganic film.

### Claim 5 (depends on 1)

The method of forming an antireflection optical body according to claim 1, wherein
the fine structure body has a fine structure at one surface at a side corresponding to the substrate film and a fine structure at a surface at an opposite side to the one surface.

### Claim 6 (depends on 1)

The method of forming an antireflection optical body according to claim 1, wherein
the adherend and the fine structure body are fixed in a state in which the adhesive between the fine structure body and the adherend has a thickness of 15 μm or less.