KR102747550B1 - 편광 필름 및 이를 채용하는 표시 장치 - Google Patents
편광 필름 및 이를 채용하는 표시 장치 Download PDFInfo
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- KR102747550B1 KR102747550B1 KR1020190020493A KR20190020493A KR102747550B1 KR 102747550 B1 KR102747550 B1 KR 102747550B1 KR 1020190020493 A KR1020190020493 A KR 1020190020493A KR 20190020493 A KR20190020493 A KR 20190020493A KR 102747550 B1 KR102747550 B1 KR 102747550B1
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Classifications
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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
-
- 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
-
- 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
- G02B1/14—Protective coatings, e.g. hard coatings
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/003—Light absorbing elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
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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
- G02B5/3083—Birefringent or phase retarding elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/8793—Arrangements for polarized light emission
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/873—Encapsulations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K59/8792—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. black layers
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Polarising Elements (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
도 2a는 본 발명의 다른 실시예에 따른 편광 필름의 개략적인 단면도이다.
도 2b는 본 발명의 또 다른 실시예에 따른 편광 필름의 개략적인 단면도이다.
도 2c는 본 발명의 또 다른 실시예에 따른 편광 필름의 개략적인 단면도이다.
도 3은 (a) 내지 (d) 타입의 역 파장 분산 1/4 파장판의 파장 분산성(DSP)를 나타낸 그래프이다.
도 4는 (a) 내지 (d) 타입의 역 파장 분산 1/4 파장판의 반사 채도를 CIE L*a*b* 좌표에 나타낸다.
도 5는 파장 분산성(DSP)과 편광필름의 투과율의 상관관계를 나타내고 있다.
도 6은 상기의 관계식을 적용한 실시예들 및 종래기술에 대한 광투과율 그래프를 나타내다.
도 7은 각 실시예들의 반사광 채도를 CIE L*a*b* 좌표계에 나타내고 있다.
도 8은 광흡수층을 적용하지 않은 경우와 적용한 경우의 채도(Chorma) 변화를 나타내는 표이다.
도 9는 본 발명의 일 실시예에 따른 표시장치를 개략적으로 나타낸 평면도이다.
도 10는 본 발명의 일 실시예에 따른 표시장치의 일부를 개략적으로 나타낸 단면도이다.
DSP(430nm) | b* | |
(a) 타입 | 0.77 | -0.57 |
(b) 타입 | 0.82 | -1.22 |
(c) 타입 | 0.86 | -2.06 |
(d) 타입 | 0.91 | -3.13 |
515: 접착층
510: 역 파장 분산 1/4 파장판
520: 편광층
530: 광흡수층
541: 제1보호층
543: 제2보호층
550: 하드 코팅층
Claims (20)
- 편광층;
상기 편광층의 일측에 배치된 역 파장 분산 1/4 파장판(QWP, Quarter waveplate); 및
상기 편광층의 일측에 배치되는 광흡수층;을 포함하며,
상기 광흡수층은 380nm ~ 430nm의 파장을 가지는 광을 흡수하는 광흡수제를 포함하며,
상기 역파장 분산 1/4 파장판의 450nm 파장에서의 파장분산성(DSP)과 상기 편광 필름의 430nm 파장에서의 광투과율은 다음 식을 만족하는, 편광 필름:
단, T(430nm)는 430nm 파장에서의 광투과율을 의미한다. DSP는 450nm 파장에서의 파장분산성을 의미한다. 파장분산성 DSP는 R(450nm)/R(550nm)의 값으로, R(λ)는 파장 λ값에서의 위상차값을 의미한다. - 삭제
- 제1항에 있어서,
상기 편광 필름의 380nm ~ 430nm의 파장을 가지는 광에 대한 광투과율은 40% 미만인, 편광 필름. - 제1항에 있어서,
상기 광흡수제는 안트라퀴논 베이스 염료(anthraquinone-based dyes), 메틴 베이스 염료(methine-based dyes), 아조메틴 베이스 염료(azomethine-based dyes), 옥사딘 베이스 염료(oxadine-based dyes), 아조 베이스 염료(azo-based dyes), 스티릴 베이스 염료(styryl-based dyes), 쿠머린 베이스 염료(coumarin-based dyes), 포르피린 베이스 염료(porphyrin-based dyes), 디벤조푸라노닌 베이스 염료(dibenzofuranone-based dyes), 디케토피롤로피롤 베이스 염료(diketopyrrolopyrrole-based dyes), 로다민 베이스 염료(rhodamine-based dyes), 키산텐 베이스 염료(kisanten-based dyes), 피로메텐 베이스 염료(pyrromethene-based dyes) 중에서 선택되는 적어도 하나의 물질을 포함하는, 편광 필름. - 제1항에 있어서,
상기 광흡수층은 트리아세틸 셀루로오스(TAC: Tri-acetyl cellulous), 사이클로 올레핀 폴리머(Cyclo olefin polymer), 폴리메틸 메타크릴레이트(PMMA: polymethyl methacrylate) 중에서 선택되는 적어도 하나의 물질을 더 포함하는, 편광 필름. - 제1항에 있어서,
상기 광흡수층은 감압성 접착제를 더 포함하는, 편광 필름. - 제1항에 있어서,
상기 편광층의 하면 및 상면에 각각 배치되는 제1보호층 및 제2보호층;을 더 포함하며,
상기 제1보호층 및 제2보호층은, 트리아세틸 셀루로오스(TAC: Tri-acetyl cellulous), 사이클로 올레핀 폴리머(Cyclo olefin polymer), 폴리메틸 메타크릴레이트(PMMA: polymethyl methacrylate) 중에서 선택되는 적어도 하나의 물질을 포함하는, 편광 필름. - 제1항에 있어서,
상기 역 파장 분산 1/4 파장판 하면에 배치되는 접착층;을 더 포함하는, 편광 필름. - 제1항에 있어서,
상기 편광층은 폴리비닐알코올(PVA: Poly Vinyl Alcohol)에 이색성 색소가 포함되는, 편광 필름. - 제1항에 있어서,
상기 역 파장 분산 1/4 파장판은 다음 조건을 만족하는, 편광 필름:
DSP(450nm) = R(450nm)/R(550nm) < 1,
DSP(650nm) = R(650nm)/R(550nm) > 1
이 때, R(λ)는 파장 λ에서의 위상차값을 의미한다. - 기판;
상기 기판 상에 배치되는 복수의 표시요소들;
상기 복수의 표시요소들을 밀봉하는 밀봉부재; 및
상기 밀봉부재 상부에 배치되는 편광 필름;을 포함하며,
상기 편광 필름은, 편광층; 상기 편광층의 일측에 배치된 역 파장 분산 1/4 파장판(QWP, Quarter waveplate); 및 상기 편광층의 일측에 배치되는 광흡수층;을 포함하며, 상기 광흡수층은 380nm ~ 430nm의 파장을 가지는 광을 흡수하는 광흡수제를 포함하며,
상기 역파장 분산 1/4 파장판의 450nm 파장에서의 파장분산성(DSP)과 상기 편광 필름의 430nm 파장에서의 광투과율은 다음 식을 만족하는, 표시 장치:
단, T(430nm)는 430nm 파장에서의 광투과율을 의미한다. DSP는 450nm 파장에서의 파장분산성을 의미한다. 파장분산성 DSP는 R(450nm)/R(550nm)의 값으로, R(λ)는 파장 λ값에서의 위상차값을 의미한다. - 삭제
- 제11항에 있어서,
상기 편광 필름의 380nm ~ 430nm의 파장을 가지는 광에 대한 광투과율은 40% 미만인, 표시 장치. - 제1항에 있어서,
상기 광흡수제는 안트라퀴논 베이스 염료(anthraquinone-based dyes), 메틴 베이스 염료(methine-based dyes), 아조메틴 베이스 염료(azomethine-based dyes), 옥사딘 베이스 염료(oxadine-based dyes), 아조 베이스 염료(azo-based dyes), 스티릴 베이스 염료(styryl-based dyes), 쿠머린 베이스 염료(coumarin-based dyes), 포르피린 베이스 염료(porphyrin-based dyes), 디벤조푸라노닌 베이스 염료(dibenzofuranone-based dyes), 디케토피롤로피롤 베이스 염료(diketopyrrolopyrrole-based dyes), 로다민 베이스 염료(rhodamine-based dyes), 키산텐 베이스 염료(kisanten-based dyes), 피로메텐 베이스 염료(pyrromethene-based dyes) 중에서 선택되는 적어도 하나의 물질을 포함하는, 표시 장치. - 제11항에 있어서,
상기 광흡수층은 감압성 접착제를 더 포함하며,
상기 광흡수층은 상기 역 파장 분산 1/4 파장판과 상기 밀봉부재 사이에 배치되는, 표시 장치. - 제11항에 있어서,
상기 밀봉부재는 박막봉지층으로, 상기 박막봉지층은 제1무기봉지층, 유기봉지층, 및 제2무기봉지층이 순차 적층되어 구비된, 표시 장치. - 제11항에 있어서,
상기 밀봉부재는 밀봉기판인, 표시 장치. - 제11항에 있어서,
상기 편광층의 하면 및 상면에 각각 배치되는 제1보호층 및 제2보호층;을 더 포함하며,
상기 제1보호층 및 제2보호층은, 트리아세틸 셀루로오스(TAC: Tri-acetyl cellulous), 사이클로 올레핀 폴리머(Cyclo olefin polymer), 폴리메틸 메타크릴레이트(PMMA: polymethyl methacrylate) 중에서 선택되는 적어도 하나의 물질을 포함하는, 표시 장치. - 제11항에 있어서,
상기 광흡수층은 트리아세틸 셀루로오스(TAC: Tri-acetyl cellulous), 사이클로 올레핀 폴리머(Cyclo olefin polymer), 폴리메틸 메타크릴레이트(PMMA: polymethyl methacrylate) 중에서 선택되는 적어도 하나의 물질을 더 포함하는, 표시 장치. - 제11항에 있어서,
상기 역 파장 분산 1/4 파장판은 다음 조건을 만족하는, 표시 장치:
DSP(450nm) = R(450nm)/R(550nm) < 1,
DSP(650nm) = R(650nm)/R(550nm) > 1
이 때, R(λ)는 파장 λ에서의 위상차값을 의미한다.
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