KR102745113B1 - 광학 적층체 및 이를 포함하는 광학표시장치 - Google Patents
광학 적층체 및 이를 포함하는 광학표시장치 Download PDFInfo
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- KR102745113B1 KR102745113B1 KR1020210003628A KR20210003628A KR102745113B1 KR 102745113 B1 KR102745113 B1 KR 102745113B1 KR 1020210003628 A KR1020210003628 A KR 1020210003628A KR 20210003628 A KR20210003628 A KR 20210003628A KR 102745113 B1 KR102745113 B1 KR 102745113B1
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- laminate
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- layer
- adhesive layer
- optical laminate
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- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
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- 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
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- 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
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Abstract
Description
도 2는 본 발명 다른 실시예의 광학 적층체의 단면도이다.
실시예 | 비교예 | |||||||
1 | 2 | 3 | 4 | 1 | 2 | 3 | ||
두께 (㎛) |
상부 보호층 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
편광자 | 7 | 7 | 10 | 7 | 7 | 7 | 12 | |
하부 보호층 | 20 | - | 20 | 20 | - | 20 | 20 | |
접착층 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | |
액정 위상차 필름의 적층체 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | |
점착층 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | |
접착층 (wt%) |
소듐 티오설페이트 | 0.8 | 0.8 | 0.8 | 0.8 | - | - | - |
에스테르계 가소제 | - | - | - | 6.5 | - | - | - | |
편광도 | 99.993 | 99.992 | 99.993 | 99.995 | 99.983 | 99.983 | 99.993 | |
요오드 용출량 | 3.4 | 6.8 | 2.3 | 1.2 | 300.0 | 150.0 | 5.5 |
Claims (13)
- 편광자 및 상기 편광자의 하부면에 적층된 적층체를 포함하고,
상기 편광자는 두께가 10㎛ 이하이고,
상기 적층체는 접착층을 포함하고,
상기 접착층은 티오설페이트 음이온(S2O3 2-) 함유 염 또는 그의 수화물을 0.1 내지 3.0중량%로 포함하는 것인, 광학 적층체.
- 제1항에 있어서, 상기 광학 적층체는 편광도가 99% 이상인 것인, 광학 적층체.
- 제1항에 있어서, 상기 티오설페이트 음이온 함유 염은 소듐 티오설페이트(Na2S2O3)를 포함하는 것인, 광학 적층체.
- 제1항에 있어서, 상기 적층체는 위상차층, 점착층 중 1종 이상을 더 포함하는 것인, 광학 적층체.
- 제1항에 있어서, 상기 적층체는 두께가 60㎛ 이하인 것인, 광학 적층체.
- 제1항에 있어서, 상기 적층체는 상기 편광자로부터 순차적으로 적층된 상기 접착층, 위상차층 및 점착층을 포함하는 것인, 광학 적층체.
- 제1항에 있어서, 상기 접착층은 광경화형 접착제로 형성되는 것인, 광학 적층체.
- 제4항에 있어서, 상기 위상차층은 액정 코팅층 또는 액정 필름을 포함하는 것인, 광학 적층체.
- 제1항에 있어서, 상기 적층체는 에스테르계 가소제를 더 포함하는 것인, 광학 적층체.
- 제9항에 있어서, 상기 에스테르계 가소제는 상기 접착층 중 0.1중량% 내지 15.0중량%로 포함되는 것인, 광학 적층체.
- 제1항에 있어서, 상기 편광자와 상기 접착층 사이에 보호층이 더 적층된 것인, 광학 적층체.
- 제11항에 있어서, 상기 보호층은 셀룰로스 에스테르계 수지 또는 폴리에스테르계 수지로 된 필름을 포함하는 것인, 광학 적층체.
- 제1항 내지 제12항 중 어느 한 항의 광학 적층체를 포함하는 것인, 광학표시장치.
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