JP2020530128A - 光学デバイス - Google Patents
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Abstract
Description
異方性度R=[E(p)−E(s)]/[E(p)+2*E(s)]
正面位相差Rin=d×(nx−ny)
厚さ方向位相差Rth=d×(nz−ny)
ハードコーティング層の硬度および弾性率(modulus)は、常温(約23℃)でMTS Nano Indenter XP装備を使用してチップ(tip)の速度約10nm/sおよび圧入深さ約1,000nmの条件で測定した。
実施例で製造された能動液晶素子を120のオーブンに約3時間の間維持した後に取り出してクラックなどの発生の有無を肉眼で評価した。評価結果、クラックなどの不良が発生しない場合はP、不良が観察される場合をNGで下記の表1に表記した。
実施例で製造された能動液晶素子を使用してガラス基板(5T glass substrate)、ウレタン系接着フィルム、PVA(polyvinyl alcohol)偏光子、ウレタン系接着フィルム、前記能動液晶素子、ウレタン系接着フィルムおよびガラス基板(5T glass substrate)が順次積層された積層体を製造し、120℃で1時間、100℃で7日、−40℃で90時間を維持することを1サイクルとして、前記サイクルを10回経た後にクラック発生の有無を肉眼で評価した。評価結果、クラックなどの不良が発生しない場合はP、不良が観察される場合をNGで下記の表1に表記した。
前記シリアルテストクラック評価と同じサイクルを経たサンプルに対して、光漏れ発生の有無を評価した。光漏れ発生の有無は前記サンプルを電子顕微鏡(Nikon社、LV100ND−POL)で観察して光漏れが発生しない場合はP、図5のように光漏れが発生する場合をNGにして下記の表1に表記した。
ハードコーティング組成物は、溶媒(PGME、Propylene glycol methyl ether)、多官能性アクリレート(BP302、ハンノン化学製;MIRAMER M340、味元化学製)、ウレタンアクリレート(SU530、ソルテク社製)および光開始剤(Irgacure 907、BASF製)を79:8:2:10:1の重量比率(PGME:M340:BP302:SU530:Irgacure907)で混合して製造した。
ハードコーティング層形成:基材層としてPC(polycarbonate)フィルムを使用したし、2個のPC(polycarbonate)フィルムの一面にそれぞれ前記ハードコーティング組成物を最終厚さが下記の表1に示されたものと同一になるように塗布し、約80℃の温度で約3分の間乾燥した後に約500mJ/cm2の露光量で紫外線を照射して硬化させることによってハードコーティング層を形成した。
溶媒(PGME、Propylene glycol methyl ether)、多官能性アクリレート(BP302、ハンノン化学製;MIRAMER M340、味元化学製))、ウレタンアクリレート(SU530、ソルテク社製)、光開始剤(Irgacure 907、BASF製)およびシリカ粒子(SEKISUI社、38nm粒径)を79:8:2:1:10の重量比率(PGME:M340:BP302:SU530:Irgacure907:シリカ粒子)で混合して製造したハードコーティング組成物を使用したことを除いては、実施例1と同様にしてハードコーティング層を形成し、実施例1と同様にして第1基材層、第2基材層および能動液晶素子を製作した。
溶媒(PGME、Propylene glycol methyl ether)、多官能性アクリレート(BP302、ハンノン化学製;MIRAMER M340、味元化学製))、ウレタンアクリレート(SU530、ソルテク社製)、光開始剤(Irgacure 907、BASF製)およびシリカ粒子(SEKISUI社、38nm粒径)を79:12:3:5:1:10の重量比率(PGME:M340:BP302:SU530:Irgacure907:シリカ粒子)で混合して製造したハードコーティング組成物を使用したことを除いては、実施例1と同様にしてハードコーティング層を形成し、実施例1と同様にして第1基材層、第2基材層および能動液晶素子を製作した。
溶媒(PGME、Propylene glycol methyl ether)、多官能性アクリレート(BP302、ハンノン化学製;MIRAMER M340、味元化学製))、ウレタンアクリレート(SU530、ソルテク社製)、光開始剤(Irgacure 907、BASF製)およびシリカ粒子(SEKISUI社、38nm粒径)を79:12:3:5:1:20の重量比率(PGME:M340:BP302:SU530:Irgacure907:シリカ粒子)で混合して製造したハードコーティング組成物を使用したことを除いては、実施例1と同様にしてハードコーティング層を形成し、実施例1と同様にして第1基材層、第2基材層および能動液晶素子を製作した。
Claims (19)
- 液晶化合物を含み、第1および第2配向状態の間をスイッチングできる能動液晶層を有する能動液晶素子を含む光学デバイスであって、
前記能動液晶素子は、対向配置された2層の基材層と前記2層の基材層の間に存在する前記能動液晶層を含み、
前記基材層の少なくとも一面には厚さが2μm以上のハードコーティング層が形成されている、光学デバイス。 - 対向配置されている2枚の外郭基板;偏光子および接着フィルムをさらに含み、前記2枚の外郭基板の間に能動液晶素子と前記偏光子が順次配置されており、
前記接着フィルムは、前記外郭基板と能動液晶素子の間、能動液晶素子と偏光子の間、偏光子と外郭基板の間および前記能動液晶素子と偏光子の側面に存在し、
前記能動液晶素子および偏光子は前記2枚の外郭基板の間で前記接着フィルムによってカプセル化されている、請求項1に記載の光学デバイス。 - ハードコーティング層は、硬度が0.7GPa以下である、請求項1または2に記載の光学デバイス。
- ハードコーティング層は、弾性率が7.5GPa以下である、請求項1から3のいずれか一項に記載の光学デバイス。
- ハードコーティング層は基材層の能動液晶層に向かう面に形成されている、請求項1から4のいずれか一項に記載の光学デバイス。
- ハードコーティング層は、多官能性(メタ)アクリレートの重合単位を含む、請求項1から5のいずれか一項に記載の光学デバイス。
- 能動液晶層の第1配向状態の平均光軸と偏光子の光吸収軸がなす角度が80度〜100度または35度〜55度の範囲内となるように前記能動液晶素子と偏光子が配置されている、請求項2に記載の光学デバイス。
- 基材層は正面位相差が100nm以下である、請求項1から7のいずれか一項に記載の光学デバイス。
- 基材層は厚さ方向位相差の絶対値が200nm以下である、請求項1から8のいずれか一項に記載の光学デバイス。
- 基材層は、熱膨張係数が100ppm/K以下である、請求項1から9のいずれか一項に記載の光学デバイス。
- 基材層は破断伸び率が100%以上である、請求項1から10のいずれか一項に記載の光学デバイス。
- 基材層の能動液晶層に向かう面上に存在する配向膜をさらに含む、請求項2または7に記載の光学デバイス。
- 2枚の基材層の配向膜の配向方向がなす角度は−10度〜10度の範囲内または80度〜100度の範囲内である、請求項12に記載の光学デバイス。
- 2枚の基材層のうち偏光子に近い基材層上に形成された配向膜の配向方向と偏光子の光吸収軸がなす角度が80度〜100度の範囲内である、請求項12または13に記載の光学デバイス。
- 外郭基板は正面位相差が100nm以下である、請求項2または7に記載の光学デバイス。
- 外郭基板は厚さ方向位相差の絶対値が200nm以下である、請求項2、7、15のいずれか一項に記載の光学デバイス。
- 外郭基板は、熱膨張係数が100ppm/K以下である、請求項2、7、15、16のいずれか一項に記載の光学デバイス。
- 接着フィルムは厚さ方向位相差の絶対値が200nm以下である、請求項2、7、15、16、17のいずれか一項に記載の光学デバイス。
- 一つ以上の開口部が形成されている車体;および前記開口部に装着された請求項1から18のいずれか一項に記載された光学デバイスを含む、自動車。
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KR10-2017-0160762 | 2017-11-28 | ||
KR1020170160762A KR102184392B1 (ko) | 2017-11-28 | 2017-11-28 | 광학 디바이스 |
PCT/KR2018/009966 WO2019107709A1 (ko) | 2017-11-28 | 2018-08-29 | 광학 디바이스 |
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JP6984102B2 JP6984102B2 (ja) | 2021-12-17 |
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EP (1) | EP3719566B1 (ja) |
JP (1) | JP6984102B2 (ja) |
KR (1) | KR102184392B1 (ja) |
CN (1) | CN111033371B (ja) |
WO (1) | WO2019107709A1 (ja) |
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WO2023008859A1 (ko) * | 2021-07-26 | 2023-02-02 | 동우 화인켐 주식회사 | 광학 적층체 및 이를 포함하는 스마트 윈도우 |
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Publication number | Publication date |
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EP3719566B1 (en) | 2022-10-05 |
EP3719566A4 (en) | 2021-01-20 |
KR20190061902A (ko) | 2019-06-05 |
KR102184392B1 (ko) | 2020-11-30 |
CN111033371A (zh) | 2020-04-17 |
WO2019107709A1 (ko) | 2019-06-06 |
EP3719566A1 (en) | 2020-10-07 |
US20200241338A1 (en) | 2020-07-30 |
US11194194B2 (en) | 2021-12-07 |
CN111033371B (zh) | 2023-01-24 |
JP6984102B2 (ja) | 2021-12-17 |
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