KR101521226B1 - 광학 보상 필름 - Google Patents
광학 보상 필름 Download PDFInfo
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- KR101521226B1 KR101521226B1 KR1020110128645A KR20110128645A KR101521226B1 KR 101521226 B1 KR101521226 B1 KR 101521226B1 KR 1020110128645 A KR1020110128645 A KR 1020110128645A KR 20110128645 A KR20110128645 A KR 20110128645A KR 101521226 B1 KR101521226 B1 KR 101521226B1
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- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133635—Multifunctional compensators
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- 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
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- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133637—Birefringent elements, e.g. for optical compensation characterised by the wavelength dispersion
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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
- 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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- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
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Abstract
Description
도 2는 한 실시예에 따른 표시 장치의 개략적인 단면도이다.
도 3 내지 도 6는 비교예 및 실험예의 광학 보상 필름에 대한 반사 휘도를 나타낸 그래프이다.
도 7 내지 도 10은 비교예 및 실험예의 광학 보상 필름에 대한 반사 색상을 나타낸 그래프이다.
도 11 내지 도 14는 비교예 및 실험예의 광학 보상 필름에서 약 8도의 입사각에서의 반사 색상을 나타낸 색좌표를 나타낸 그래프이다.
도 15는 비교예 및 실험예의 광학 보상 필름에서 약 8도의 입사각에서의 반사율 스펙트럼을 나타낸 그래프이다.
연신 전 | 연신 후 | 파장분산성 | ||
두께비 | 필름두께(㎛) | 두께(㎛) | 단파장 | 장파장 |
1.21 | 240 | 180 | 0.81 | 1.11 |
1.42 | 230 | 173 | 0.82 | 1.1 |
1.60 | 223 | 167 | 0.84 | 1.09 |
1.70 | 220 | 165 | 0.86 | 1.07 |
1.89 | 215 | 161 | 0.89 | 1.05 |
2.13 | 210 | 158 | 0.9 | 1.04 |
1.30 | 180 | 135 | 0.82 | 1.12 |
1.44 | 175 | 131 | 0.86 | 1.08 |
1.63 | 170 | 128 | 0.87 | 1.07 |
1.86 | 165 | 124 | 0.9 | 1.04 |
1.22 | 155 | 116 | 0.79 | 1.1 |
1.45 | 148 | 111 | 0.81 | 1.08 |
1.57 | 145 | 109 | 0.84 | 1.07 |
1.83 | 140 | 105 | 0.89 | 1.05 |
1.11 | 145 | 109 | 0.82 | 1.09 |
1.25 | 140 | 105 | 0.86 | 1.07 |
1.43 | 135 | 101 | 0.89 | 1.05 |
구분 | 기준 파장 지연값 |
단파장 파장 분산성 |
장파장 파장 분산성 |
COP | 141 | 1.01 | 0.99 |
아크릴 | 140 | 0.9 | 1.03 |
PC(1) | 145 | 0.9 | 1.03 |
PC(2) | 137 | 1.07 | 0.96 |
실험예 | 139 | 0.84 | 1.09 |
Claims (22)
- 양의 복굴절을 가지는 제1층,
상기 제1층 위에 위치하며 음의 복굴절을 가지는 제2층, 그리고
상기 제2층 위에 위치하며 양의 복굴절을 가지는 제3층
을 포함하며,
550 nm 파장의 입사광에 대한 지연값이 135 nm 내지 145 nm이고,
상기 제2층에 대한 상기 제1층 또는 상기 제3층의 두께비가 1.1 내지 2.2 인
광학 보상 필름. - 제1항에서,
상기 제1층과 상기 제3층의 두께 차이는 2 μm 이내인 광학 보상 필름. - 제2항에서,
상기 광학 보상 필름의 필름면에 수직인 방향에 대한 굴절 계수(nz)가 1인 광학 보상 필름. - 제3항에서,
상기 제1층 및 상기 제3층은 COP(cyclo-olefin polymer) 및 COC(cyclo-olefin copolymer) 중 적어도 하나를 포함하는 광학 보상 필름. - 제4항에서,
상기 제2층은 스티렌 반복 단위를 80 mol% 이상 포함하는 변성 폴리스티렌 공중합 수지를 포함하는 광학 보상 필름. - 제5항에서,
상기 제2층은 SMA(styrene maleic anhydride)를 포함하는 광학 보상 필름. - 제6항에서,
상기 제1층 및 상기 제3층은 COP를 포함하고, 상기 제2층은 SMA를 포함하는 광학 보상 필름. - 제1항 내지 제7항 중 어느 한 항에서,
상기 제1층 및 상기 제3층의 두께는 각각 37 μm 내지 64μm이고,
상기 제2층의 두께는 22 μm 내지 53 μm인
광학 보상 필름. - 제8항에서,
550 nm 파장의 입사광에 대한 지연값에 대비하여 650nm의 입사광에 대한 지연값의 비율이 1.04 내지 1.12이고,
550 nm 파장의 입사광에 대한 지연값에 대비하여 450nm의 입사광에 대한 지연값의 비율이 0.79 내지 9.0인
광학 보상 필름. - 양의 복굴절을 가지는 제1층,
상기 제1층 위에 위치하며 음의 복굴절을 가지는 제2층, 그리고
상기 제2층 위에 위치하며 양의 복굴절을 가지는 제3층
을 포함하며,
550 nm 파장의 입사광에 대한 지연값이 135 nm 내지 145 nm이고,
상기 제1층 및 상기 제3층의 두께는 각각 37 μm 내지 64 μm이고,
상기 제2층의 두께는 22 μm 내지 53 μm인
광학 보상 필름. - 제10항에서,
상기 제1층과 상기 제3층의 두께 차이는 2 μm 이내이고,
상기 광학 보상 필름의 필름면에 수직인 방향에 대한 굴절 계수(nz)가 1인
광학 보상 필름. - 제10항에서,
상기 제1층 및 상기 제3층은 COP(cyclo-olefin polymer) 및 COC(cyclo-olefin copolymer) 중 적어도 하나를 포함하고,
상기 제2층은 스티렌 반복 단위를 80 mol% 이상 포함하는 변성 폴리스티렌 공중합 수지를 포함하는
광학 보상 필름. - 양의 복굴절을 가지는 재료와 음의 복굴절을 가지는 재료를 포함하며,
550 nm 파장의 입사광에 대한 지연값이 135 nm 내지 145 nm이고,
550 nm 파장의 입사광에 대한 지연값에 대비하여 650nm의 입사광에 대한 지연값의 비율이 1.04 이상인
광학 보상 필름. - 제13항에서,
550 nm 파장의 입사광에 대한 지연값에 대비하여 450nm의 입사광에 대한 지연값의 비율이 0.9 이하인 광학 보상 필름. - 제14항에서,
550 nm 파장의 입사광에 대한 지연값에 대비하여 650nm의 입사광에 대한 지연값의 비율이 1.04 내지 1.12이고,
550 nm 파장의 입사광에 대한 지연값에 대비하여 450nm의 입사광에 대한 지연값의 비율이 0.79 내지 9.0인
광학 보상 필름. - 제15항에서,
상기 광학 보상 필름의 필름면에 수직인 방향에 대한 굴절 계수(nz)가 1이고,
상기 양의 굴절률을 가지는 재료는 COP를 포함하고, 상기 음의 굴절률을 가지는 재료는 SMA를 포함하는
광학 보상 필름. - 제13항 내지 제16항 중 어느 한 항에서,
상기 양의 굴절률을 가지는 재료는 두 층으로 나뉘어 있고,
상기 음의 굴절률을 가지는 재료는 상기 두 층으로 나뉜 양의 굴절률을 가지는 재료 사이에 위치하여 하나의 층을 이루고,
상기 음의 굴절률을 가지는 재료의 한 층에 대한 상기 양의 굴절률을 가지는 재료의 두 층 중 하나의 두께비가 1.1 내지 2.2 인
광학 보상 필름. - 한 쌍의 전극과 매질층을 포함하는 표시판, 그리고
상기 표시판의 한쪽 면에 위치하는 광학 보상층
을 포함하고,
상기 광학 보상층은,
양의 복굴절을 가지는 제1층,
상기 제1층 위에 위치하며 음의 복굴절을 가지는 제2층, 그리고
상기 제2층 위에 위치하며 양의 복굴절을 가지는 제3층
을 포함하며,
550 nm 파장의 입사광에 대한 지연값이 135 nm 내지 145 nm이고,
상기 제2층에 대한 상기 제1층 또는 상기 제3층의 두께비가 1.1 내지 2.2 인
표시 장치. - 제18항에서,
상기 제1층 및 상기 제3층의 두께는 각각 37 μm 내지 64μm이고,
상기 제2층의 두께는 22 μm 내지 53 μm인
표시 장치. - 제19항에서,
상기 광학 보상층에서,
550 nm 파장의 입사광에 대한 지연값에 대비하여 650nm의 입사광에 대한 지연값의 비율이 1.04 내지 1.12이고,
550 nm 파장의 입사광에 대한 지연값에 대비하여 450nm의 입사광에 대한 지연값의 비율이 0.79 내지 9.0인
표시 장치. - 제20항에서,
상기 광학 보상층 위에 위치하는 편광층을 더 포함하는 표시 장치. - 제21항에서,
상기 매질층은 유기 발광 물질을 포함하는 표시 장치.
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