KR102703629B1 - 반사 방지 필름 - Google Patents
반사 방지 필름 Download PDFInfo
- Publication number
- KR102703629B1 KR102703629B1 KR1020200032250A KR20200032250A KR102703629B1 KR 102703629 B1 KR102703629 B1 KR 102703629B1 KR 1020200032250 A KR1020200032250 A KR 1020200032250A KR 20200032250 A KR20200032250 A KR 20200032250A KR 102703629 B1 KR102703629 B1 KR 102703629B1
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- KR
- South Korea
- Prior art keywords
- layer
- low
- inorganic nanoparticles
- refractive
- hard coating
- Prior art date
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- HNRMPXKDFBEGFZ-UHFFFAOYSA-N ethyl trimethyl methane Natural products CCC(C)(C)C HNRMPXKDFBEGFZ-UHFFFAOYSA-N 0.000 description 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
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- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
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- 239000000376 reactant Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000007764 slot die coating Methods 0.000 description 1
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- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
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- ZUEKXCXHTXJYAR-UHFFFAOYSA-N tetrapropan-2-yl silicate Chemical compound CC(C)O[Si](OC(C)C)(OC(C)C)OC(C)C ZUEKXCXHTXJYAR-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
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- 239000010936 titanium Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/113—Anti-reflection coatings using inorganic layer materials only
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Surface Treatment Of Optical Elements (AREA)
- Laminated Bodies (AREA)
Abstract
Description
도2는 실시예1 내지 실시예3의 각 파장별 반사율을 나타낸 것이다.
도3은 비교예2의 반사 방지 필름의 단면 TEM 사진을 나타낸 것이다.
도4는 비교예1 및 비교예2의 각 파장별 반사율을 나타낸 것이다.
광경화시질소 퍼징 여부 | 자외선 강도[mJ/㎠] | |
제조예1 | O | 25mJ/cm2 |
제조예2 | O | 254mJ/cm2 |
실시예1 | 실시예2 | 실시예3 | 비교예1 | 비교예2 | ||
평균반사율 (%) | 0.19 | 0.18 | 0.239 | 0.55 | 0.818 | |
CIE Lab 색공간에서 a값 | 1.75 | 1.62 | 3.26 | -5.44 | 5.66 | |
CIE Lab 색공간에서 b*값 | -0.96 | -1.00 | -0.60 | -4.59 | 9.04 | |
하드코팅층의 표면에너지[mN/m] | 39.04 | 39.04 | 39.04 | 33.5 | 39.04 | |
하드코팅층으로부터 입자 혼재층의 위치 |
107.79nm | 108.72nm | 108.98nm | 45.87nm | 18.96nm | |
입자 혼재층의두께 | 69.73nm | 69.24nm | 71.88nm | 115.62nm | 151.38nm | |
반사 방지 필름의 파장 550nm에서의 반사율 | 0.1476% | 0.1419% | 0.187% | 0.5717 | 0.617 | |
반사 방지 필름의 파장 400nm에서의 반사율 | 1.018% | 0.9495% | 1.3996% | 0.2331 | 2.420 | |
반사 방지 필름의 파장 700nm에서의 반사율 | 1.3685% | 1.3574% | 1.5386% | 0.7805 | 2.565 | |
내스크래치성 | 100gf | 100gf | 100gf | 25gf | 25gf | |
상분리여부 | 0 | 0 | 0 | X | X | |
입자 혼재층 | A | 1.193 | 1.213 | 1.209 | 1.350 | 1.328 |
B | 0.00180 | 0.0025 | 0.00253 | 0.00052 | 0.0045 | |
C | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0002 |
Claims (19)
- 표면 에너지는 34 mN/m 이상인 하드 코팅층; 및 저굴절층을 포함하고,
중공형 무기 나노 입자 및 솔리드형 무기 나노 입자를 함께 포함하고, 25 내지 100 nm의 두께를 갖는 입자 혼재층이 상기 저굴절층 내에 존재하며,
CIE Lab 색공간에서 b*값의 절대값이 4이하인,
반사 방지 필름.
- 제1항에 있어서,
상기 입자 혼재층의 두께는 35 ㎚ 내지 90 ㎚인, 반사 방지 필름.
- 제1항 또는 제2항에 있어서,
상기 입자 혼재층의 두께는 타원편광법(ellipsometry)으로 측정한 편극의 타원율을 확산층 모델 (Diffuse layer model)로 최적화 (fitting)하여 결정되는,
반사 방지 필름.
- 제1항에 있어서,
상기 반사 방지 필름의 파장 550nm에서의 반사율이 0.5% 이하인,, 반사 방지 필름.
- 제4항에 있어서,
상기 반사 방지 필름의 파장 550nm에서의 반사율 대비 파장 400nm에서의 반사율의 비율이 5 이상인, 반사 방지 필름.
- 제1항에 있어서,
상기 하드 코팅층의 일면 상에 상기 저굴절층이 형성되고,
상기 입자 혼재층은 상기 하드 코팅층 일면으로부터 50 ㎚ 이상의 거리를 두고 위치하는,
반사 방지 필름.
- 제1항 또는 제6항에 있어서,
상기 저굴절층은 80 ㎚ 내지 500 ㎚의 두께를 갖는, 반사 방지 필름.
- 삭제
- 제1항에 있어서,
상기 하드 코팅층의 일면 상에 상기 저굴절층이 형성되고,
상기 저굴절층은 바인더 수지에 분산된 중공형 무기 나노 입자 및 솔리드형 무기 나노 입자를 포함하고,
상기 저굴절층에서 상기 솔리드형 무기 나노 입자 전체 중 50부피% 이상이 상기 하드 코팅층 일면으로부터 상기 입자 혼재층 사이에 존재하는, 반사 방지 필름.
- 제1항에 있어서,
상기 하드 코팅층 일면으로부터 상기 입자 혼재층 사이의 영역은 파장 550nm에서 1.46 내지 1.75의 굴절율을 갖는, 반사 방지 필름.
- 제9항에 있어서,
상기 저굴절층에서, 상기 중공형 무기 나노 입자 전체 중 50부피% 이상이 상기 입자 혼재층으로부터 상기 하드 코팅층과 대향하는 저굴절층의 일면까지의 영역에 존재하는, 반사 방지 필름.
- 제11항에 있어서,
상기 입자 혼재층으로부터 상기 하드 코팅층과 대향하는 저굴절층의 일면까지의 영역은 파장 550nm에서 1.0 내지 1.40의 굴절율을 갖는, 반사 방지 필름.
- 제1항에 있어서,
상기 솔리드형 무기 나노 입자는 0.5 내지 100㎚의 직경을 가지며,
상기 중공형 무기 나노 입자는 1 내지 200㎚의 직경을 가지는, 반사 방지 필름.
- 제1항에 있어서,
상기 솔리드형 무기 나노 입자 및 상기 중공형 무기 나노 입자 간의 밀도의 차이가 3.50 g/㎤ 이상인, 반사 방지 필름.
- 제1항에 있어서,
상기 저굴절층은 바인더 수지 및 상기 바인더 수지에 분산된 중공형 무기 나노 입자 및 솔리드형 무기 나노 입자를 포함하고,
상기 저굴절층에 포함되는 바인더 수지는 광중합성 화합물의 (공)중합체 및 광반응성 작용기를 포함한 함불소 화합물 간의 가교 (공)중합체를 포함하는, 반사 방지 필름.
- 제1항에 있어서,
상기 하드 코팅층은 광경화성 수지를 포함하는 바인더 수지 및 상기 바인더 수지에 분산된 유기 또는 무기 미립자;를 포함하는, 반사 방지 필름.
- 제1항의 반사 방지 필름 및 편광자를 포함하는 편광판.
- 제1항의 반사 방지 필름을 포함하는 디스플레이 장치.
- 제1항의 반사 방지 필름을 포함하는 유기발광다이오드 디스플레이 장치.
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