JP7453415B2 - 干渉縞が改善された多層構造のフィルム及びこれを含む表示装置 - Google Patents
干渉縞が改善された多層構造のフィルム及びこれを含む表示装置 Download PDFInfo
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- JP7453415B2 JP7453415B2 JP2022567252A JP2022567252A JP7453415B2 JP 7453415 B2 JP7453415 B2 JP 7453415B2 JP 2022567252 A JP2022567252 A JP 2022567252A JP 2022567252 A JP2022567252 A JP 2022567252A JP 7453415 B2 JP7453415 B2 JP 7453415B2
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- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
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Description
Or=[(Om1*Om2)-(Om1+Om2)]/Min(Om1,Om2)
Gr=|(Rm1-Rm2)|/Rm2
Om=(1/n)*Σ(Ok)
0.927*Nx≦N1≦0.978*Ny
0.793*Nx≦N2≦0.975*Ny
0.793*Nx≦N3≦0.975*Ny
Or=[(Om1*Om2)-(Om1+Om2)]/Min(Om1,Om2)
Gr=|(Rm1-Rm2)|/Rm2
Om=(1/n)*Σ(Ok)
Or=[(Om1*Om2)-(Om1+Om2)]/Min(Om1,Om2)
Gr=|(Rm1-Rm2)|/Rm2
Om=(1/n)*Σ(Ok)
0.927*Nx≦N1≦0.978*Ny
0.793*Nx≦N2≦0.975*Ny
0.793*Nx≦N3≦0.975*Ny
撹拌器、窒素注入装置、適下漏斗、温度調節器及び冷却器を装着している1L反応器に、窒素を通過させながら、DMAc(N,N-Dimethylacetamide)735.264gを満たした後、反応器の温度を25℃に合わせた後に、2,2’-ビス(トリフルオロメチル)ベンジジン(2,2’-Bis(trifluoromethyl)benzidine,TFDB)54.439g(0.17mol)を溶解させ、この溶液を25℃に維持した。ここに、ビフェニル-テトラカルボン酸二無水物(biphenyl-tetracarboxylic acid dianhydride,BPDA)10.003g(0.034mol)を添加し、3時間撹拌してBPDAを完全に溶解させた後、4,4’-(ヘキサフルオロイソプロピリデン)ジフタル酸無水物(4,4’-(Hexafluoroisopropylidene)diphthalic anhydride,6FDA)15.105g(0.034mol)を添加して、完全に溶解させた。反応器温度を10℃に下げた後、テレフタロイルクロリド(Terephthaloyl chloride,TPC)20.716g(0.102mol)を添加して、25℃で12時間反応させ、固形分の濃度が12重量%である重合体溶液を得た。
撹拌器、窒素注入装置、適下漏斗、温度調節器及び冷却器を装着している1L反応器に窒素を通過させながら、DMAc(N,N-Dimethylacetamide)754.06gを満たした後、反応器の温度を25℃に合わせた後、TFDB 44.832g(0.14mol)を溶解させ、この溶液を25℃に維持した。ここに、BPDA 8.238g(0.028mol)を添加し、3時間撹拌してBPDAを完全に溶解させた後、6FDA 49.756g(0.112mol)を添加して25℃で12時間反応させ、固形分の濃度が12重量%である重合体溶液を得た。
撹拌器、窒素注入装置、適下漏斗、温度調節器及び冷却器を装着している1L反応器に窒素を通過させながら、DMAc(N,N-Dimethylacetamide)776.655gを満たし、反応器の温度を25℃に合わせた後、TFDB 54.439g(0.17mol)を溶解させ、この溶液を25℃に維持した。ここに、BPDA 15.005g(0.051mol)を添加し、3時間撹拌してBPDAを完全に溶解させた後、6FDA 22.657g(0.051mol)を添加して完全に溶解させた。反応器温度を10℃に下げた後、TPC 13.805g(0.068mol)を添加後に25℃で12時間反応させ、固形分の濃度が12重量%である重合体溶液を得た。
2-(3,4-エポキシシクロヘキシル)エチルトリメトキシシラン(TCI社)、TEOS(Tetraethyl orthosilicate,Sigma-Aldrich社)、H2Oを747.66mL:38.28mL:93.88mLの比率に混合して1500mLフラスコに入れた後、水酸化ナトリウム0.1gを触媒として添加し、60℃で10時間撹拌した。その後、0.45μmテフロン(登録商標)フィルターで濾過してエポキシ系樹脂を得た。
ジルコニア分散液であるKT-300Z-S-KR(TOYOCHEM社)を、固形分基準で、製造されたエポキシ系樹脂に対して43重量部を添加する以外は、実施例1と同じ方法で第1コーティング組成物を製造した。第1コーティング組成物の硬化時の屈折率は1.60である。
ジルコニア分散液であるKT-300Z-S-KR(TOYOCHEM社)を固形分基準で、製造されたエポキシ系樹脂に対して17重量部を添加する以外は、実施例1と同じ方法で第1コーティング組成物を製造した。第1コーティング組成物の硬化時の屈折率は1.54である。
ジルコニア分散液であるKT-300Z-S-KR(TOYOCHEM社)を、固形分基準で、製造されたエポキシ系樹脂に対して13重量部を添加する以外は、実施例1と同じ方法で第1コーティング組成物を製造した。第1コーティング組成物の硬化時の屈折率は1.53である。
ジルコニア分散液であるKT-300Z-S-KR(TOYOCHEM社)を、固形分基準で、製造されたエポキシ系樹脂に対して22重量部を添加する以外は、実施例1と同じ方法で第1コーティング組成物を製造した。第1コーティング組成物の硬化時の屈折率は1.55である。
実施例1と同じ方法で第1及び第2コーティング層を有する2次フィルムを製造した。
2-(3,4-エポキシシクロヘキシル)エチルトリメトキシシラン(TCI社)、TEOS(Sigma-Aldrich社)、H2Oを747.66mL:38.28mL:93.88mLの割合で混合して1500mLフラスコに入れた後、水酸化ナトリウム0.1gを触媒として添加し、60℃で10時間撹拌した。その後、0.45μmテフロン(登録商標)フィルターを用いて濾過してエポキシ系樹脂を得た。
ジルコニア分散液であるKT-300Z-S-KR(TOYOCHEM社)を、固形分基準で、製造されたエポキシ系樹脂に対して60重量部を添加する以外は、実施例1と同じ方法で第1コーティング組成物を製造した。第1コーティング組成物の硬化時屈折率は1.64である。
ジルコニア分散液であるKT-300Z-S-KR(TOYOCHEM社)を、固形分基準で、製造されたエポキシ系樹脂に対して5重量部を添加する以外は、実施例1と同じ方法で第1コーティング組成物を製造した。第1コーティング組成物の硬化時屈折率は1.51である。
実施例1と同じ方法で第1コーティング組成物を製造した。第1コーティング組成物の硬化時の屈折率は1.57である。
実施例1と同じ方法で第1コーティング組成物を製造した。第1コーティング組成物の硬化時の屈折率は1.57である。
実施例1と同じ方法で、第1及び第2コーティング層を有する2次フィルムを製造した。
実施例1と同じ方法で、第1及び第2コーティング層を有する2次フィルムを製造した。
実施例1~7及び比較例1~7で製造されたフィルムに対して、次のような特定を実行した。
TQC社のCC1000モデルを用いて、ASTM D3359によって格子状に切断後に、剥離される程度を測定した。
実施例及び比較例によって製造された最終フィルムを、50mm×50mmに切り、MURAKAMI社のヘイズメーター(モデル名:HM-150)の装備を用いて、ASTM D1003に従って透過度及びヘイズを5回測定し、その平均値を確認した。
HITACHI社のUH4150装備を用いて、380~780nmの波長領域で光反射率を測定した。測定したフィルムの反射率グラフから、下記式1によって算出される反射率オシレーション比(Or)、及び下記式2によって算出される反射率グラフ勾配(Gr)を算出した。
Or=[(Om1*Om2)-(Om1+Om2)]/Min(Om1,Om2)
Gr=|(Rm1-Rm2)|/Rm2
Om=(1/n)*Σ(Ok)
三波長ランプ下で実施例及び比較例のフィルムを肉眼で評価し、次のような等級に分けて評価した。
B:少数の専門家の肉眼では認知できるが、使用には無理無し
C:普通の少数の人々が肉眼で認知でき、積層構造によっては使用に制限があり得る
D:普通の多数の人々が肉眼で確認でき、使用不可
E:普通の多数の人々が肉眼で明確に確認でき、使用不可
10:基材
11:残余基材層
12:スウェリング層
20:第1コーティング層
21:光透過性マトリックス
22:粒子
30:第2コーティング層
40:第3コーティング層
Claims (14)
- 基材;
前記基材上の第1コーティング層;及び
前記基材上の第2コーティング層;を含み、
380nm~780nm波長領域で反射率を測定して得た反射率グラフから、
下記式1によって算出される反射率オシレーション比(Or)は1.0以下であり、
下記式2によって算出される反射率グラフ勾配(Gr)は0.122以下であり、
前記基材は、X軸方向屈折率(Nx)が1.57~1.67であり;
Y軸方向屈折率(Ny)が1.57~1.67であり;
Z軸方向屈折率(Nz)が1.53~1.57であり、
前記第1コーティング層は、下記式4を満たす屈折率(N1)を有し、
前記第2コーティング層は、下記式5を満たす屈折率(N2)を有するフィルム:
<式1>
Or=[(Om1*Om2)-(Om1+Om2)]/Min(Om1,Om2)
<式2>
Gr=|(Rm1-Rm2)|/Rm2
上記式1で、Om1は、500nm~550nmの波長領域における反射率オシレーションの値の平均(Om)であり、Om2は、650nm~780nmの波長領域における反射率オシレーションの値の平均(Om)であって、反射率オシレーション値の平均(Om1,Om2)は、下記式3によって算出され、Min(Om1,Om2)は、Om1及びOm2のうちの小さい方の反射率オシレーション値の平均(Om)を表し、
上記式2で、Rm1は、500nm~780nmの波長領域における、反射率グラフの最初のピーク(P1)に対応する反射率値と、最初のバレー(V1)に対応する反射率値との算術平均値であり、Rm2は、500nm~780nmの波長領域における、反射率グラフの最後のピーク(Pf)に対応する反射率値と、最後のバレー(Vf)に対応する反射率値との算術平均値である。
<式3>
Om=(1/n)*Σ(Ok)
上記式3で、Okは、当該波長領域におけるオシレーション値であり、nは、当該波長領域におけるオシレーション値の個数であり、
前記オシレーション値は、隣り合う一対の、ピーク(Pk)とバレー(Vk)とのそれぞれに対応する、反射率値の差(|Pkに対応する反射率値-Vkに対応する反射率値|)である。
<式4>
0.927*Nx≦N1≦0.978*Ny
<式5>
0.793*Nx≦N2≦0.975*Ny - 前記基材は、複屈折性を有する、請求項1に記載のフィルム。
- 前記第2コーティング層は、前記基材と前記第1コーティング層との間に配置される、請求項1に記載のフィルム。
- 前記第1コーティング層は、前記基材と前記第2コーティング層との間に配置される、請求項1に記載のフィルム。
- 前記基材上の第3コーティング層をさらに含む、請求項1に記載のフィルム。
- 前記第3コーティング層は、下記式6を満たす屈折率(N3)を有する、請求項5に記載のフィルム。
<式6>
0.793*Nx≦N3≦0.975*Ny - 前記第1コーティング層は、光透過性マトリックス及び前記光透過性マトリックスに分散された粒子を含む、請求項1に記載のフィルム。
- 前記光透過性マトリックスは、シロキサン系樹脂、アクリル系樹脂、ウレタン系樹脂及びエポキシ系樹脂のうちの少なくとも一つを含む、請求項7に記載のフィルム。
- 前記粒子は、ジルコニア(zirconia,ZrO2)、シリカ(silica,SiO2)、アルミナ(alumina,Al2O3)、二酸化チタン(titanium dioxide,TiO2)、スチレン(Styrene)及びアクリル(Acryl)のうちの少なくとも一つを含む、請求項7に記載のフィルム。
- 前記第1コーティング層は0.01~3.4μmの厚さを有する、請求項1に記載のフィルム。
- 前記第2コーティング層は、1~14μmの厚さを有する、請求項1に記載のフィルム。
- 前記第3コーティング層は、1μm以下の厚さを有する、請求項5に記載のフィルム。
- ポリイミド系基材;
前記ポリイミド系基材上の第1コーティング層;及び
前記ポリイミド系基材上の第2コーティング層;を含み、
380nm~780nmの波長領域で反射率を測定して得た反射率グラフから、
下記式1によって算出される反射率オシレーション比(Or)は、1.0以下であり、
下記式2によって算出される反射率グラフ勾配(Gr)は、0.122以下であり、
前記ポリイミド系基材は、X軸方向屈折率(Nx)が1.57~1.67であり;
Y軸方向屈折率(Ny)が1.57~1.67であり;
Z軸方向屈折率(Nz)が1.53~1.57であり、
前記第1コーティング層は、下記式4を満たす屈折率(N1)を有し、
前記第2コーティング層は、下記式5を満たす屈折率(N2)を有するポリイミド系フィルム:
<式1>
Or=[(Om1*Om2)-(Om1+Om2)]/Min(Om1,Om2)
<式2>
Gr=|(Rm1-Rm2)|/Rm2
上記式1で、Om1は、500nm~550nmの波長領域における反射率オシレーションの値の平均(Om)であり、Om2は、650nm~780nmの波長領域における反射率オシレーションの値の平均(Om)であって、反射率オシレーション値の平均(Om1,Om2)は、下記式3によって算出され、Min(Om1,Om2)は、Om1及びOm2のうちの小さい方の反射率オシレーション値の平均(Om)を表し、
上記式2で、Rm1は、500nm~780nmの波長領域における、反射率グラフの最初のピーク(P1)に対応する反射率値と、最初のバレー(V1)に対応する反射率値との算術平均値であり、Rm2は、500nm~780nmの波長領域における、反射率グラフの最後のピーク(Pf)に対応する反射率値と、最後のバレー(Vf)に対応する反射率値との算術平均値である。
<式3>
Om=(1/n)*Σ(Ok)
上記式3で、Okは、当該波長領域におけるオシレーション値であり、nは、当該波長領域におけるオシレーション値の個数であり、
前記オシレーション値は、隣り合う一対の、ピーク(Pk)とバレー(Vk)とのそれぞれに対応する反射率値の差(|Pkに対応する反射率値-Vkに対応する反射率値|)である。
<式4>
0.927*Nx≦N1≦0.978*Ny
<式5>
0.793*Nx≦N2≦0.975*Ny - 表示パネル;及び
前記表示パネル上に配置された、請求項1~12のいずれか一項のフィルム;
を含む、表示装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020200076134A KR102458462B1 (ko) | 2020-06-23 | 2020-06-23 | 간섭 무늬가 개선된 다층 구조의 필름 및 이를 포함하는 표시장치 |
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PCT/KR2021/007679 WO2021261848A1 (ko) | 2020-06-23 | 2021-06-18 | 간섭 무늬가 개선된 다층 구조의 필름 및 이를 포함하는 표시장치 |
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JP2019124908A (ja) | 2018-01-11 | 2019-07-25 | 東洋紡株式会社 | 積層フィルム及びそれを用いた偏光板 |
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JP2005301004A (ja) * | 2004-04-13 | 2005-10-27 | Seiichi Suzuki | 反射防止フィルム |
JP4887612B2 (ja) * | 2004-10-20 | 2012-02-29 | 日油株式会社 | 減反射材及びそれを用いた電子画像表示装置 |
KR20100007441A (ko) * | 2008-07-14 | 2010-01-22 | 동우 화인켐 주식회사 | 간섭무늬를 제거한 광학필름, 이를 이용한 편광판 및화상표시 장치 |
JP5051328B1 (ja) * | 2012-01-27 | 2012-10-17 | 大日本印刷株式会社 | 光学積層体、偏光板及び画像表示装置 |
KR101870341B1 (ko) * | 2013-12-26 | 2018-06-22 | 코오롱인더스트리 주식회사 | 투명 폴리아마이드―이미드 수지 및 이를 이용한 필름 |
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KR101769266B1 (ko) * | 2015-07-17 | 2017-08-17 | 다이니폰 인사츠 가부시키가이샤 | 광학 부재용 적층체 및 화상 표시 장치 |
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CN109313286B (zh) * | 2016-07-28 | 2020-11-03 | 株式会社Lg化学 | 用于保护起偏振器的光学膜、包括其的偏光板和图像显示装置 |
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WO2018180304A1 (ja) * | 2017-03-29 | 2018-10-04 | 大日本印刷株式会社 | 光学フィルムおよび画像表示装置 |
JP7000701B2 (ja) * | 2017-04-13 | 2022-01-19 | 大日本印刷株式会社 | 光学フィルムおよび画像表示装置 |
KR102139525B1 (ko) * | 2017-05-19 | 2020-07-30 | 동우 화인켐 주식회사 | 하드코팅 필름 및 이를 포함하는 화상표시장치 |
KR102063202B1 (ko) * | 2017-06-01 | 2020-02-11 | 삼성에스디아이 주식회사 | 편광판 및 이를 포함하는 액정표시장치 |
KR20190063306A (ko) * | 2017-11-29 | 2019-06-07 | 삼성에스디아이 주식회사 | 광학표시장치의 보호 필름, 이를 포함하는 광학 부재 및 이를 포함하는 광학표시장치 |
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EP4169974A1 (en) | 2023-04-26 |
KR20210157966A (ko) | 2021-12-30 |
WO2021261848A1 (ko) | 2021-12-30 |
KR102458462B1 (ko) | 2022-10-24 |
US20230305206A1 (en) | 2023-09-28 |
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