KR102126058B1 - 편광판 및 이를 포함하는 광학표시장치 - Google Patents
편광판 및 이를 포함하는 광학표시장치 Download PDFInfo
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- G02B5/00—Optical elements other than lenses
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- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
- G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/63—Additives non-macromolecular organic
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- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
- C09J163/10—Epoxy resins modified by unsaturated compounds
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- 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
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- 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
- G02B1/111—Anti-reflection coatings using layers comprising organic materials
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
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Abstract
Description
도 2는 본 발명의 다른 실시예의 편광판의 단면도이다.
도 3은 본 발명의 또 다른 실시예의 편광판의 단면도이다.
실시예 1 | 실시예 2 | 실시예 3 | 비교예 1 | 비교예 2 | 비교예 3 | |
저굴절층 굴절률 | 1.29 | 1.29 | 1.29 | 1.29 | 1.29 | 1.29 |
고굴절층 굴절률 | 1.72 | 1.72 | 1.72 | 1.72 | 1.72 | 1.72 |
하드코팅층 굴절률 | 1.54 | 1.54 | 1.54 | 1.54 | 1.54 | 1.54 |
기재층 굴절률 | 1.60 | 1.60 | 1.60 | 1.60 | 1.60 | 1.60 |
접착층 굴절률 | 1.541 | 1.530 | 1.55 | 1.505 | 1.61 | 1.47 |
편광자 굴절률 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
반사율(%) | 0.34 | 0.36 | 0.32 | 0.42 | 0.45 | 0.5 |
Claims (19)
- 편광자; 및 상기 편광자의 상부면에 순차적으로 형성된 접착층 및 반사방지필름을 포함하는 편광판으로서,
상기 반사방지필름은 상기 접착층으로부터 순차적으로 형성된, 기재층, 고굴절층 및 저굴절층을 포함하고,
상기 접착층은 굴절률이 1.51 이상 1.60 미만이고,
상기 편광자, 상기 접착층 및 상기 기재층은 하기 식 1의 관계를 가지며;
<식 1>
편광자의 굴절률 < 접착층의 굴절률 < 기재층의 굴절률,
상기 반사방지필름은 반사율이 0.3% 이하이고,
상기 기재층은 상기 저굴절층 대비 굴절률이 높고, 상기 기재층과 상기 저굴절층의 굴절률 차이는 0.25 이상이고,
상기 편광판은 상기 저굴절층에서 측정한 반사율이 0.4% 이하인 것인, 편광판.
- 삭제
- 삭제
- 제1항에 있어서, 상기 기재층은 굴절률이 1.60 이상인 것인, 편광판.
- 제1항에 있어서, 상기 기재층은 폴리에틸렌테레프탈레이트, 폴리부틸렌테레프탈레이트, 폴리에틸렌나프탈레이트, 폴리부틸렌나프탈레이트 중 하나 이상으로 형성된 필름을 포함하는 것인, 편광판.
- 제1항에 있어서, 상기 고굴절층은 굴절률이 1.65 이상인 것인, 편광판.
- 제1항에 있어서, 상기 저굴절층은 굴절률이 1.65 미만인 것인, 편광판.
- 제1항에 있어서, 상기 접착층은 에폭시계 화합물 및 개시제를 포함하는 접착층용 조성물로 형성된 것인, 편광판.
- 제8항에 있어서, 상기 접착층용 조성물은 (메트)아크릴레이트계 화합물, 옥세탄계 화합물 중 하나 이상을 더 포함하는 것인, 편광판.
- 제1항에 있어서, 상기 접착층은 고형분 기준 고리형 지방족 에폭시계 화합물 50중량% 내지 80중량%, 방향족 에폭시계 화합물 1중량% 내지 20중량%, 1개 이상의 친수성기를 갖는 (메트)아크릴레이트계 화합물 1중량% 내지 20중량%, 친수성기를 갖지 않는 (메트)아크릴레이트계 화합물 1중량% 내지 20중량%, 및 개시제 1중량% 내지 10중량%를 포함하는 접착층용 조성물로 형성된 것인, 편광판.
- 제1항에 있어서, 상기 접착층은 고형분 기준 방향족 에폭시계 화합물 30중량% 내지 70중량%, 사슬형 지방족 에폭시계 화합물 10중량% 내지 50중량%, 옥세탄계 화합물 10중량% 내지 40중량%, 및 개시제 1중량% 내지 10중량%를 포함하는 접착층용 조성물로 형성된 것인, 편광판.
- 제1항에 있어서, 상기 편광자는 굴절률이 1.3 내지 1.5이고,
상기 접착층은 굴절률이 1.51 내지 1.59이고,
상기 기재층은 굴절률이 1.60 내지 1.75이고,
상기 고굴절층은 굴절률이 1.65 내지 1.80이고,
상기 저굴절층은 굴절률이 1.1 내지 1.5인 것인, 편광판.
- 제1항에 있어서, 상기 기재층과 상기 고굴절층 사이에 하드코팅층이 더 형성된 것인, 편광판.
- 삭제
- 제13항에 있어서, 상기 기재층은 상기 하드코팅층보다 굴절률이 높고,
상기 기재층과 상기 하드코팅층의 굴절률 차이는 0.05 이상인 것인, 편광판.
- 제13항에 있어서, 상기 편광자는 굴절률이 1.3 내지 1.5이고,
상기 접착층은 굴절률이 1.51 내지 1.59이고,
상기 기재층은 굴절률이 1.60 내지 1.75이고,
상기 하드코팅층은 굴절률이 1.50 내지 1.599이고,
상기 고굴절층은 굴절률이 1.65 내지 1.80이고,
상기 저굴절층은 굴절률이 1.1 내지 1.5인 것인, 편광판.
- 제1항에 있어서, 상기 편광자의 하부면에 편광자 보호필름이 더 형성된 것인, 편광판.
- 삭제
- 제1항, 제4항 내지 제13항, 제15항 내지 제17항 중 어느 한 항의 편광판을 포함하는 광학표시장치.
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KR1020170183240A KR102126058B1 (ko) | 2017-12-28 | 2017-12-28 | 편광판 및 이를 포함하는 광학표시장치 |
TW107146880A TWI716795B (zh) | 2017-12-28 | 2018-12-25 | 偏光板和包括所述偏光板的光學顯示器 |
US16/232,999 US10809432B2 (en) | 2017-12-28 | 2018-12-26 | Polarizing plate and optical display comprising the same |
CN201811610006.5A CN109975911B (zh) | 2017-12-28 | 2018-12-27 | 偏光板和包括所述偏光板的光学显示器 |
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JP2015161750A (ja) * | 2014-02-26 | 2015-09-07 | 富士フイルム株式会社 | 多層膜、偏光板および画像表示装置 |
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US10809432B2 (en) | 2020-10-20 |
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US20190204485A1 (en) | 2019-07-04 |
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