KR20210102699A - 회절 도광판, 그 제조방법 및 이를 포함하는 웨어러블 디바이스 - Google Patents
회절 도광판, 그 제조방법 및 이를 포함하는 웨어러블 디바이스 Download PDFInfo
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- KR20210102699A KR20210102699A KR1020200017051A KR20200017051A KR20210102699A KR 20210102699 A KR20210102699 A KR 20210102699A KR 1020200017051 A KR1020200017051 A KR 1020200017051A KR 20200017051 A KR20200017051 A KR 20200017051A KR 20210102699 A KR20210102699 A KR 20210102699A
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Classifications
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- C—CHEMISTRY; METALLURGY
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
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- C08F220/343—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate in the form of urethane links
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
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Abstract
Description
도 2는 발명의 일 구현예에 따른 회절 도광판으로 입사된 광이 회절 도광판을 통해 출사되는 과정을 개략적으로 나타낸 도면이다.
도 3은 실시예 2의 회절 도광판에 대해 3차원 좌표 측정기로 촬영한 3D 이미지이다.
도 4는 비교예 3 의 회절 도광판에 대해 3차원 좌표 측정기로 촬영한 3D 이미지이다.
도 5는 비교예 4의 회절 도광판에 대해 3차원 좌표 측정기로 촬영한 3D 이미지이다.
도 6은 실시예 2의 회절 도광판으로부터 출력된 사진이다.
도 7은 비교예 3의 회절 도광판으로부터 출력된 사진이다.
도 8은 비교예 4의 회절 도광판으로부터 출력된 사진이다.
(단위: g) | 실시예1 | 실시예2 | 실시예3 | 비교예1 | 비교예2 | 비교예3 | 비교예4 | |
기판 | 상부 기판 | 플라스틱 | 플라스틱 | 플라스틱 | 플라스틱 | 플라스틱 | 유리 | 플라스틱 |
하부 기판 | 유리 | 유리 | 유리 | 유리 | 유리 | 유리 | 플라스틱 | |
접착 조성물 | 에폭시 아크릴레이트 올리고머 | 70 | - | - | - | 55 | - | - |
우레탄 아크릴레이트 올리고머 | - | 80 | 80 | 80 | - | 80 | 80 | |
다관능 아크릴레이트 모노머 | 10 | 5 | 5 | 5 | 40 | 5 | 5 | |
단관능 아크릴레이트 모노머 | 20 | 15 | 15 | 15 | 5 | 15 | 15 | |
라디칼 개시제 | 3 | 3 | 5 | 1 | 3 | 3 | 3 | |
스페이서 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
실리카 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
실시예1 | 실시예2 | 실시예3 | 비교예1 | 비교예2 | 비교예3 | 비교예4 | |
무게 (g) | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 10 | 5 |
깨짐 특성 | 양호 | 양호 | 양호 | 양호 | 양호 | 불량 | 양호 |
접착력 (g/mm) | 93 | 114 | 229 | 10 | 5 | 114 | 110 |
휨정도 (㎛) | 7 | 7 | 7 | 15 | 15 | <3 | 15 |
이미지 품질 (MTF) | 0.5 | 0.5 | 0.5 | 0.2 | 0.2 | 0.6 | 0.2 |
20: 하부 기판 30, 40: 접착층
50: 입사부 60: 출사부
500: 회절 도광판
Claims (20)
유리 기판; 및
상기 플라스틱 기판 및 유리 기판의 사이에 위치하며, 상기 플라스틱 기판 및 유리 기판을 이격시키는 복수의 접착층;을 포함하고,
상기 접착층은 (메트)아크릴레이트계 올리고머, 다관능 (메트)아크릴레이트계 모노머, 및 단관능 (메트)아크릴레이트계 모노머를 포함하는 바인더 수지; 및 스페이서를 포함하는, 회절 도광판.
상기 (메트)아크릴레이트계 올리고머는 상기 바인더 수지 100 중량%에 대해 60 내지 90 중량%로 포함하는, 회절 도광판.
상기 (메트)아크릴레이트계 올리고머는 에폭시 (메트)아크릴레이트계 화합물, 우레탄 (메트)아크릴레이트계 화합물 또는 이들의 혼합물을 포함하는, 회절 도광판.
상기 스페이서의 함량은 상기 바인더 수지 100 중량부에 대해 0.01 내지 5 중량부인, 회절 도광판.
상기 스페이서는 직경이 10㎛ 내지 500㎛인 구형인, 회절 도광판.
상기 스페이서는 폴리비닐벤젠, 폴리스티렌 및 폴리메틸메타아크릴레이트로 이루어진 군에서 선택된 하나 이상인, 회절 도광판.
상기 접착층은 라디칼 개시제, 무기 입자 또는 이들의 혼합물을 더 포함하는, 회절 도광판.
상기 라디칼 개시제는 상기 바인더 수지 100중량부에 대해 3 내지 10 중량부로 포함하는, 회절 도광판.
상기 접착층은 접착력이 50 g/mm 이상인, 회절 도광판.
상기 접착층은 상기 플라스틱 기판 및 유리 기판의 일면의 말단부에 위치하는, 회절 도광판.
상기 접착층은 높이가 10 ㎛ 내지 500 ㎛인, 회절 도광판.
상기 플라스틱 기판 및 유리 기판은 각각 독립적으로 적어도 일면에 회절 격자 패턴이 포함된 회절 도광부를 포함하는, 회절 도광판.
상기 회절 도광판은 휨(Warpage)은 13 ㎛ 이하인, 회절 도광판.
상기 접착 조성물을 경화하여 상기 플라스틱 기판과 상기 유리 기판을 이격시키는 접착층을 형성하여 회절 도광판을 제조하는 단계;를 포함하고,
상기 접착 조성물은 (메트)아크릴레이트계 올리고머, 다관능 (메트)아크릴레이트계 모노머, 및 단관능 (메트)아크릴레이트계 모노머를 포함하는 바인더 수지; 및 스페이서를 포함하는, 회절 도광판 제조 방법.
상기 (메트)아크릴레이트계 올리고머는 상기 바인더 수지 100중량%에 대해 60 내지 90중량%로 포함하는, 회절 도광판 제조 방법.
상기 스페이서는 상기 바인더 수지 100 중량부에 대해 0.01 내지 5 중량부로 포함하는, 회절 도광판 제조 방법.
상기 접착층은 라디칼 개시제, 무기 입자 또는 이들의 혼합물을 더 포함하는, 회절 도광판 제조 방법.
상기 라디칼 개시제는 상기 바인더 수지 100중량부에 대해 3 내지 10 중량부로 포함하는, 회절 도광판 제조 방법.
상기 경화는 0.1 내지 5 kgf 합착력 및 10 내지 200 초의 경화 시간 동안 이루어지는, 회절 도광판 제조방법.
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