JP2014170202A5 - - Google Patents
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- JP2014170202A5 JP2014170202A5 JP2013049448A JP2013049448A JP2014170202A5 JP 2014170202 A5 JP2014170202 A5 JP 2014170202A5 JP 2013049448 A JP2013049448 A JP 2013049448A JP 2013049448 A JP2013049448 A JP 2013049448A JP 2014170202 A5 JP2014170202 A5 JP 2014170202A5
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- polarizing plate
- film
- liquid crystal
- resin
- protective film
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- 230000001681 protective Effects 0.000 claims description 64
- 239000004973 liquid crystal related substance Substances 0.000 claims description 59
- 229920005992 thermoplastic resin Polymers 0.000 claims description 36
- 229920005989 resin Polymers 0.000 claims description 32
- 239000011347 resin Substances 0.000 claims description 32
- 230000035699 permeability Effects 0.000 claims description 28
- 210000002858 crystal cell Anatomy 0.000 claims description 16
- 229920005668 polycarbonate resin Polymers 0.000 claims description 12
- 239000004431 polycarbonate resin Substances 0.000 claims description 12
- 229920000178 Acrylic resin Polymers 0.000 claims description 8
- 239000004925 Acrylic resin Substances 0.000 claims description 8
- KNCYXPMJDCCGSJ-UHFFFAOYSA-N Glutarimide Chemical compound O=C1CCCC(=O)N1 KNCYXPMJDCCGSJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000012461 cellulose resin Substances 0.000 claims description 8
- 125000004122 cyclic group Chemical group 0.000 claims description 8
- VANNPISTIUFMLH-UHFFFAOYSA-N oxane-2,6-dione Chemical compound O=C1CCCC(=O)O1 VANNPISTIUFMLH-UHFFFAOYSA-N 0.000 claims description 8
- 229920005672 polyolefin resin Polymers 0.000 claims description 8
- 229920005990 polystyrene resin Polymers 0.000 claims description 8
- 229920001225 Polyester resin Polymers 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000004645 polyester resin Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
Description
［１］
ガラス基板２枚の間に液晶層を設けた液晶セルと、
上記液晶セルの両面に設けた偏光板と、上記液晶セルのリア側（非視認側）に設けたバックライトを含んでなる液晶表示装置であって、
液晶セルのフロント側（視認側）に設けた偏光板は、２５℃相対湿度６０％おける偏光板の含水率と下記条件（Ａ）経時直後における偏光板の含水率の差が０．０１％以上４．０％以下である、液晶表示装置。
［条件（Ａ）：４０℃相対湿度９５％の環境に２４時間放置］
［２］
上記フロント側偏光板は、偏光子のフロント側（視認側）の面に配置された偏光板保護フィルムＦ１を有し、
偏光板保護フィルムＦ１は、透湿度が２００ｇ／ｍ２／ｄａｙ以下であり、熱可塑性樹脂フィルムと、上記熱可塑性樹脂フィルム上に積層された低透湿層を有する、［１］に記載の液晶表示装置。
（ただし、透湿度は、ＪＩＳ Ｚ−０２０８の手法で、４０℃、相対湿度９０％で２４時間経過後の値である。）
［３］
上記偏光板保護フィルムＦ１の低透湿層の少なくとも１つが、下記式（１）を満たす低透湿層である、［２］に記載の液晶表示装置。
式（１） Ａ／Ｂ≦０．９
（式（１）中、Ａは上記熱可塑性樹脂フィルムに上記低透湿層を積層したフィルムの透湿度を表し、Ｂは上記熱可塑性樹脂フィルムの透湿度を表す。ただし、透湿度は、ＪＩＳ
Ｚ−０２０８の手法で、４０℃、相対湿度９０％で２４時間経過後の値である。）
［４］
上記熱可塑性樹脂フィルムに含まれる熱可塑性樹脂が、（メタ）アクリル系樹脂、ポリカーボネート系樹脂、ポリスチレン系樹脂、環状ポリオレフィン系樹脂、グルタル酸無水物系樹脂、グルタルイミド系樹脂、セルロース系樹脂、およびこれらから選ばれた複数種の樹脂の混合樹脂である、［２］又は［３］に記載の液晶表示装置。
［５］
上記フロント側（視認側）偏光板はフロント側（視認側）の面に配置された偏光板保護フィルムＦ１を有し、偏光板保護フィルムＦ１が下記式（Ｉ）、（Ｖ）を満たすフィルムである、［１］に記載の液晶表示装置。
式（Ｉ） Ｒｅ＝（ｎｘ−ｎｙ）×ｄ
式（Ｖ） ３０００ｎｍ≦Ｒｅ≦３００００ｎｍ
（式（Ｉ）、（Ｖ）中、ｎｘは上記偏光板保護フィルムＦ１のフィルム面内の遅相軸方向の屈折率であり、ｎｙは上記偏光板保護フィルムＦ１のフィルム面内の進相軸方向の屈折率であり、ｎｚは前偏光板保護フィルムＦ１の膜厚方向の屈折率であり、ｄは上記偏光板保護フィルムＦ１の膜厚（ｎｍ）である。）
［６］
上記フロント側（視認側）偏光板はフロント側（視認側）の面に配置された偏光板保護フィルムＦ１を有し、偏光板保護フィルムＦ１が下記式（ＶＩ）、（ＶＩＩ）を満たすフィルムである、［１］または［５］に記載の液晶表示装置。
式（ＶＩ） Ｎｚ＝（ｎｘ−ｎｚ）/（ｎｘ−ｎｙ）
式（ＶＩＩ） Ｎｚ≦２．０
（式（ＶＩ）中、ｎｘは上記偏光板保護フィルムＦ１のフィルム面内の遅相軸方向の屈折率であり、ｎｙは上記偏光板保護フィルムＦ１のフィルム面内の進相軸方向の屈折率であり、ｎｚは前偏光板保護フィルムＦ１の膜厚方向の屈折率であり、ｄは上記偏光板保護フィルムＦ１の膜厚（ｎｍ）である。）
［７］
上記偏光板保護フィルムＦ１が、ポリエステル系樹脂またはポリカーボネート系樹脂である、［２］、［５］、［６］のいずれかに記載の液晶表示装置。
［８］
上記偏光板保護フィルムＦ１は、透湿度が７５ｇ／ｍ２／ｄａｙ以下である、［２］〜［７］のいずれかに記載の液晶表示装置。
（ただし、透湿度は、ＪＩＳ Ｚ−０２０８の手法で、４０℃、相対湿度９０％で２４時間経過後の値である。）
［９］
上記フロント側偏光板は、偏光子の液晶セル側の面に配置された偏光板保護フィルムＦ２を有し、
上記偏光板保護フィルムＦ２は熱可塑性樹脂フィルムであり、
上記熱可塑性樹脂フィルムに含まれる熱可塑性樹脂が、（メタ）アクリル系樹脂、ポリカーボネート系樹脂、ポリスチレン系樹脂、環状ポリオレフィン系樹脂、グルタル酸無水物系樹脂、グルタルイミド系樹脂、セルロース系樹脂およびこれらから選ばれた複数種の樹脂の混合樹脂である、［１］〜［８］のいずれかに記載の液晶表示装置。
［１０］
液晶セルのリア側（非視認側）に設けた偏光板は、２５℃相対湿度６０％における偏光板の含水率と下記条件（Ａ）経時直後における偏光板の含水率の差が０．０１％以上４．０％以下である、［１］〜［９］のいずれかに記載の液晶表示装置。
［条件（Ａ）：４０℃相対湿度９５％の環境に２４時間放置］
［１１］
上記リア側偏光板は、偏光子のバックライト側の面に配置された偏光板保護フィルムＦ４を有し、
上記偏光板保護フィルムＦ４が、透湿度が２００ｇ／ｍ２／ｄａｙ以下であり、熱可塑性樹脂フィルムと、上記熱可塑性樹脂フィルム上に積層された低透湿層とを有する、［１０］に記載の液晶表示装置。
（ただし、透湿度は、ＪＩＳ Ｚ−０２０８の手法で、４０℃、相対湿度９０％で２４時間経過後の値である。）
［１２］
上記偏光板保護フィルムＦ４の低透湿層の少なくとも１つが、下記式（１）を満たす低透湿層である、［１１］に記載の液晶表示装置。
式（１） Ａ／Ｂ≦０．９
（式（１）中、Ａは上記熱可塑性樹脂フィルムに上記低透湿層を積層したフィルムの透湿度を表し、Ｂは上記熱可塑性樹脂フィルムの透湿度を表す。ただし、透湿度は、ＪＩＳ
Ｚ−０２０８の手法で、４０℃、相対湿度９０％で２４時間経過後の値である。）
［１３］
上記熱可塑性樹脂フィルムに含まれる熱可塑性樹脂が、（メタ）アクリル系樹脂、ポリカーボネート系樹脂、ポリスチレン系樹脂、環状ポリオレフィン系樹脂、グルタル酸無水物系樹脂、グルタルイミド系樹脂、セルロース系樹脂、およびこれらから選ばれた複数種の樹脂の混合樹脂である、［１１］又は［１２］に記載の液晶表示装置。
［１４］
上記リア側（非視認側）偏光板はリア側（非視認側）の面に配置された偏光板保護フィルムＦ４を有し、偏光板保護フィルムＦ４が下記式（Ｉ）、（Ｖ）を満たすフィルムである、［１０］に記載の液晶表示装置。
式（Ｉ） Ｒｅ＝（ｎｘ−ｎｙ）×ｄ
式（Ｖ） ３０００ｎｍ≦Ｒｅ≦３００００ｎｍ
（式（Ｉ）、（Ｖ）中、ｎｘは上記偏光板保護フィルムＦ４のフィルム面内の遅相軸方向の屈折率であり、ｎｙは上記偏光板保護フィルムＦ４のフィルム面内の進相軸方向の屈折率であり、ｎｚは前偏光板保護フィルムＦ４の膜厚方向の屈折率であり、ｄは上記偏光板保護フィルムＦ４の膜厚（ｎｍ）である。）
［１５］
上記リア側（非視認側）偏光板はリア側（非視認側）の面に配置された偏光板保護フィルムＦ４を有し、偏光板保護フィルムＦ４が下記式（ＶＩ）、（ＶＩＩ）を満たすフィルムである、［１０］または［１４］に記載の液晶表示装置。
式（ＶＩ） Ｎｚ＝（ｎｘ−ｎｚ）/（ｎｘ−ｎｙ）
式（ＶＩＩ） Ｎｚ≦２．０
（式（ＶＩ）中、ｎｘは上記偏光板保護フィルムＦ４のフィルム面内の遅相軸方向の屈折率であり、ｎｙは上記偏光板保護フィルムＦ４のフィルム面内の進相軸方向の屈折率であり、ｎｚは前偏光板保護フィルムＦ４の膜厚方向の屈折率であり、ｄは上記偏光板保護フィルムＦ４の膜厚（ｎｍ）である。）
［１６］
上記偏光板保護フィルムＦ４が、ポリエステル系樹脂またはポリカーボネート系樹脂である、［１１］、［１４］、又は［１５］のいずれかに記載の液晶表示装置。
［１７］
上記偏光板保護フィルムＦ４は、透湿度が７５ｇ／ｍ２／ｄａｙ以下である、［１１］〜［１６］のいずれかに記載の液晶表示装置。
（ただし、透湿度は、ＪＩＳ Ｚ−０２０８の手法で、４０℃、相対湿度９０％で２４時間経過後の値である。）
［１８］
上記リア側偏光板は、偏光子の液晶セル側の面に配置された偏光板保護フィルムＦ３を有し、
上記偏光板保護フィルムＦ３は熱可塑性樹脂フィルムであり、
上記熱可塑性樹脂フィルムに含まれる熱可塑性樹脂が、（メタ）アクリル系樹脂、ポリカーボネート系樹脂、ポリスチレン系樹脂、環状ポリオレフィン系樹脂、グルタル酸無水物系樹脂、グルタルイミド系樹脂、セルロース系樹脂およびこれらから選ばれた複数種の樹脂の混合樹脂である、［１０］〜［１７］のいずれかに記載の液晶表示装置。
［１９］
上記液晶セルのガラス基板が、厚さ０．５ｍｍ以下である、［１］〜［１８］のいずれかに記載の液晶表示装置。
[1]
A liquid crystal cell in which a liquid crystal layer is provided between two glass substrates;
A liquid crystal display device comprising: a polarizing plate provided on both surfaces of the liquid crystal cell; and a backlight provided on the rear side (non-viewing side) of the liquid crystal cell,
The polarizing plate provided on the front side (viewing side) of the liquid crystal cell has a difference of 0.01% or more between the water content of the polarizing plate at 25 ° C. and 60% relative humidity and the water content of the polarizing plate immediately after the following condition (A). A liquid crystal display device of 4.0% or less.
[Condition (A): left at 40 ° C. and 95% relative humidity for 24 hours]
[2]
The front side polarizing plate has a polarizing plate protective film F1 disposed on the front side (viewing side) surface of the polarizer,
The polarizing plate protective film F1 has a moisture permeability of 200 g / m 2 / day or less, and has a thermoplastic resin film and a low moisture-permeable layer laminated on the thermoplastic resin film, according to [1]. Display device.
(However, the moisture permeability is the value after 24 hours at 40 ° C. and 90% relative humidity by the method of JIS Z-0208.)
[3]
The liquid crystal display device according to [2], wherein at least one of the low moisture-permeable layers of the polarizing plate protective film F1 is a low moisture-permeable layer that satisfies the following formula (1).
Formula (1) A / B <= 0.9
(In Formula (1), A represents the moisture permeability of the film which laminated | stacked the said low moisture-permeable layer on the said thermoplastic resin film, B represents the moisture permeability of the said thermoplastic resin film. However, moisture permeability is JIS.
It is a value after 24 hours at 40 ° C. and a relative humidity of 90% by the method of Z-0208. )
[4]
The thermoplastic resin contained in the thermoplastic resin film is (meth) acrylic resin, polycarbonate resin, polystyrene resin, cyclic polyolefin resin, glutaric anhydride resin, glutarimide resin, cellulose resin, and The liquid crystal display device according to [2] or [3], which is a mixed resin of a plurality of types of resins selected from these.
[5]
The front side (viewing side) polarizing plate has a polarizing plate protective film F1 disposed on the front side (viewing side) surface, and the polarizing plate protective film F1 is a film satisfying the following formulas (I) and (V). The liquid crystal display device according to [1].
Formula (I) Re = (nx−ny) × d
Formula (V) 3000 nm ≦ Re ≦ 30000 nm
(In formulas (I) and (V), nx is the refractive index in the slow axis direction in the film plane of the polarizing plate protective film F1, and ny is the fast axis in the film plane of the polarizing plate protective film F1. The refractive index in the direction, nz is the refractive index in the film thickness direction of the front polarizing plate protective film F1, and d is the film thickness (nm) of the polarizing plate protective film F1.)
[6]
The front side (viewing side) polarizing plate has a polarizing plate protective film F1 disposed on the front side (viewing side) surface, and the polarizing plate protective film F1 is a film satisfying the following formulas (VI) and (VII). The liquid crystal display device according to [1] or [5].
Formula (VI) Nz = (nx-nz) / (nx-ny)
Formula (VII) Nz ≦ 2.0
(In the formula (VI), nx is the refractive index in the slow axis direction in the film plane of the polarizing plate protective film F1, and ny is the refractive index in the fast axis direction in the film plane of the polarizing plate protective film F1. Nz is the refractive index in the film thickness direction of the front polarizing plate protective film F1, and d is the film thickness (nm) of the polarizing plate protective film F1.)
[7]
The liquid crystal display device according to any one of [ 2 ], [5], and [6], wherein the polarizing plate protective film F1 is a polyester resin or a polycarbonate resin.
[8]
The polarizing plate protective film F1 is moisture permeability is less than 75g / m 2 / day, [ 2] a liquid crystal display device according to any one of - [7].
(However, the moisture permeability is the value after 24 hours at 40 ° C. and 90% relative humidity by the method of JIS Z-0208.)
[9]
The front side polarizing plate has a polarizing plate protective film F2 disposed on the surface of the polarizer on the liquid crystal cell side,
The polarizing plate protective film F2 is a thermoplastic resin film,
The thermoplastic resin contained in the thermoplastic resin film includes (meth) acrylic resin, polycarbonate resin, polystyrene resin, cyclic polyolefin resin, glutaric anhydride resin, glutarimide resin, cellulose resin, and these. The liquid crystal display device according to any one of [1] to [8], which is a mixed resin of a plurality of types of resins selected from:
[10]
The polarizing plate provided on the rear side (non-viewing side) of the liquid crystal cell has a difference of 0.01% between the moisture content of the polarizing plate at 25 ° C. and 60% relative humidity and the moisture content of the polarizing plate immediately after the following condition (A). The liquid crystal display device according to any one of [1] to [9], which is 4.0% or less.
[Condition (A): left in an environment of 40 ° C. and 95% relative humidity for 24 hours]
[11]
The rear side polarizing plate has a polarizing plate protective film F4 disposed on the surface of the polarizer on the backlight side,
[10], wherein the polarizing plate protective film F4 has a moisture permeability of 200 g / m 2 / day or less, and has a thermoplastic resin film and a low moisture-permeable layer laminated on the thermoplastic resin film. Liquid crystal display device.
(However, the moisture permeability is the value after 24 hours at 40 ° C. and 90% relative humidity by the method of JIS Z-0208.)
[12]
The liquid crystal display device according to [11], wherein at least one of the low moisture-permeable layers of the polarizing plate protective film F4 is a low moisture-permeable layer that satisfies the following formula (1).
Formula (1) A / B <= 0.9
(In Formula (1), A represents the moisture permeability of the film which laminated | stacked the said low moisture-permeable layer on the said thermoplastic resin film, B represents the moisture permeability of the said thermoplastic resin film. However, moisture permeability is JIS.
It is a value after 24 hours at 40 ° C. and a relative humidity of 90% by the method of Z-0208. )
[13]
The thermoplastic resin contained in the thermoplastic resin film is (meth) acrylic resin, polycarbonate resin, polystyrene resin, cyclic polyolefin resin, glutaric anhydride resin, glutarimide resin, cellulose resin, and The liquid crystal display device according to [11] or [12], which is a mixed resin of a plurality of types of resins selected from these.
[14]
The rear side (non-viewing side) polarizing plate has a polarizing plate protection film F4 disposed on the rear side (non-viewing side) surface, and the polarizing plate protection film F4 satisfies the following formulas (I) and (V). The liquid crystal display device according to [10], which is a film.
Formula (I) Re = (nx−ny) × d
Formula (V) 3000 nm ≦ Re ≦ 30000 nm
(In the formulas (I) and (V), nx is the refractive index in the slow axis direction in the film plane of the polarizing plate protective film F4, and ny is the fast axis in the film plane of the polarizing plate protective film F4. The refractive index in the direction, nz is the refractive index in the film thickness direction of the front polarizing plate protective film F4, and d is the film thickness (nm) of the polarizing plate protective film F4.)
[15]
The rear side (non-viewing side) polarizing plate has a polarizing plate protection film F4 disposed on the rear side (non-viewing side) surface, and the polarizing plate protection film F4 satisfies the following formulas (VI) and (VII). The liquid crystal display device according to [10] or [14], which is a film.
Formula (VI) Nz = (nx-nz) / (nx-ny)
Formula (VII) Nz ≦ 2.0
(In the formula (VI), nx is the refractive index in the slow axis direction in the film plane of the polarizing plate protective film F4, and ny is the refractive index in the fast axis direction in the film plane of the polarizing plate protective film F4. Nz is the refractive index in the film thickness direction of the front polarizing plate protective film F4, and d is the film thickness (nm) of the polarizing plate protective film F4.)
[16]
The liquid crystal display device according to any one of [ 11 ], [14], or [15], wherein the polarizing plate protective film F4 is a polyester resin or a polycarbonate resin.
[17]
The said polarizing plate protective film F4 is a liquid crystal display device in any one of [11]-[16] whose moisture permeability is 75 g / m < 2 > / day or less.
(However, the moisture permeability is the value after 24 hours at 40 ° C. and 90% relative humidity by the method of JIS Z-0208.)
[18]
The rear side polarizing plate has a polarizing plate protective film F3 disposed on the surface of the polarizer on the liquid crystal cell side,
The polarizing plate protective film F3 is a thermoplastic resin film,
The thermoplastic resin contained in the thermoplastic resin film includes (meth) acrylic resin, polycarbonate resin, polystyrene resin, cyclic polyolefin resin, glutaric anhydride resin, glutarimide resin, cellulose resin, and these. The liquid crystal display device according to any one of [10] to [17], which is a mixed resin of a plurality of types of resins selected from:
[19]
The liquid crystal display device according to any one of [1] to [18], wherein the glass substrate of the liquid crystal cell has a thickness of 0.5 mm or less.
Claims (19)
該液晶セルの両面に設けた偏光板と、該液晶セルのリア側（非視認側）に設けたバックライトを含んでなる液晶表示装置であって、
液晶セルのフロント側（視認側）に設けた偏光板は、２５℃相対湿度６０％おける偏光板の含水率と下記条件（Ａ）経時直後における偏光板の含水率の差が０．０１％以上４．０％以下である、液晶表示装置。
［条件（Ａ）：４０℃相対湿度９５％の環境に２４時間放置］ A liquid crystal cell in which a liquid crystal layer is provided between two glass substrates;
A liquid crystal display device comprising: a polarizing plate provided on both surfaces of the liquid crystal cell; and a backlight provided on the rear side (non-viewing side) of the liquid crystal cell,
The polarizing plate provided on the front side (viewing side) of the liquid crystal cell has a difference of 0.01% or more between the water content of the polarizing plate at 25 ° C. and 60% relative humidity and the water content of the polarizing plate immediately after the following condition (A). A liquid crystal display device of 4.0% or less.
[Condition (A): left in an environment of 40 ° C. and 95% relative humidity for 24 hours]
偏光板保護フィルムＦ１は、透湿度が２００ｇ／ｍ２／ｄａｙ以下であり、熱可塑性樹脂フィルムと、該熱可塑性樹脂フィルム上に積層された低透湿層を有する、請求項１に記載の液晶表示装置。
（ただし、透湿度は、ＪＩＳ Ｚ−０２０８の手法で、４０℃、相対湿度９０％で２４時間経過後の値である。） The front side polarizing plate has a polarizing plate protective film F1 disposed on the front side (viewing side) surface of the polarizer,
The liquid crystal according to claim 1, wherein the polarizing plate protective film F < b > 1 has a moisture permeability of 200 g / m 2 / day or less, and has a thermoplastic resin film and a low moisture-permeable layer laminated on the thermoplastic resin film. Display device.
(However, the moisture permeability is the value after 24 hours at 40 ° C. and 90% relative humidity by the method of JIS Z-0208.)
式（１） Ａ／Ｂ≦０．９
（式（１）中、Ａは前記熱可塑性樹脂フィルムに前記低透湿層を積層したフィルムの透湿度を表し、Ｂは前記熱可塑性樹脂フィルムの透湿度を表す。ただし、透湿度は、ＪＩＳ
Ｚ−０２０８の手法で、４０℃、相対湿度９０％で２４時間経過後の値である。） The liquid crystal display device according to claim 2, wherein at least one of the low moisture-permeable layers of the polarizing plate protective film F <b> 1 is a low moisture-permeable layer that satisfies the following formula (1).
Formula (1) A / B <= 0.9
(In Formula (1), A represents the moisture permeability of the film which laminated | stacked the said low moisture-permeable layer on the said thermoplastic resin film, B represents the moisture permeability of the said thermoplastic resin film. However, moisture permeability is JIS.
It is a value after 24 hours at 40 ° C. and a relative humidity of 90% by the method of Z-0208. )
式（Ｉ） Ｒｅ＝（ｎｘ−ｎｙ）×ｄ
式（Ｖ） ３０００ｎｍ≦Ｒｅ≦３００００ｎｍ
（式（Ｉ）、（Ｖ）中、ｎｘは前記偏光板保護フィルムＦ１のフィルム面内の遅相軸方向の屈折率であり、ｎｙは前記偏光板保護フィルムＦ１のフィルム面内の進相軸方向の屈折率であり、ｄは前記偏光板保護フィルムＦ１の膜厚（ｎｍ）である。） The front side (viewing side) polarizing plate has a polarizing plate protective film F1 disposed on the front side (viewing side) surface, and the polarizing plate protective film F1 is a film satisfying the following formulas (I) and (V). The liquid crystal display device according to claim 1.
Formula (I) Re = (nx−ny) × d
Formula (V) 3000 nm ≦ Re ≦ 30000 nm
(In the formulas (I) and (V), nx is the refractive index in the slow axis direction in the film plane of the polarizing plate protective film F1, and ny is the fast axis in the film plane of the polarizing plate protective film F1. The refractive index in the direction, and d is the film thickness (nm) of the polarizing plate protective film F1.)
式（ＶＩ） Ｎｚ＝（ｎｘ−ｎｚ）/（ｎｘ−ｎｙ）
式（ＶＩＩ） Ｎｚ≦２．０
（式（ＶＩ）中、ｎｘは前記偏光板保護フィルムＦ１のフィルム面内の遅相軸方向の屈折率であり、ｎｙは前記偏光板保護フィルムＦ１のフィルム面内の進相軸方向の屈折率であり、ｎｚは前偏光板保護フィルムＦ１の膜厚方向の屈折率である。） The front side (viewing side) polarizing plate has a polarizing plate protective film F1 disposed on the front side (viewing side) surface, and the polarizing plate protective film F1 is a film satisfying the following formulas (VI) and (VII). The liquid crystal display device according to claim 5.
Formula (VI) Nz = (nx-nz) / (nx-ny)
Formula (VII) Nz ≦ 2.0
(In the formula (VI), nx is the refractive index in the slow axis direction in the film plane of the polarizing plate protective film F1, and ny is the refractive index in the fast axis direction in the film plane of the polarizing plate protective film F1. Nz is the refractive index in the film thickness direction of the front polarizing plate protective film F1.)
（ただし、透湿度は、ＪＩＳ Ｚ−０２０８の手法で、４０℃、相対湿度９０％で２４時間経過後の値である。） The polarizing plate protective film F1 is moisture permeability is less than 75g / m 2 / day, the liquid crystal display device according to any one of claims 2-7.
(However, the moisture permeability is the value after 24 hours at 40 ° C. and 90% relative humidity by the method of JIS Z-0208.)
前記偏光板保護フィルムＦ２は熱可塑性樹脂フィルムであり、
前記熱可塑性樹脂フィルムに含まれる熱可塑性樹脂が、（メタ）アクリル系樹脂、ポリカーボネート系樹脂、ポリスチレン系樹脂、環状ポリオレフィン系樹脂、グルタル酸無水物系樹脂、グルタルイミド系樹脂、セルロース系樹脂およびこれらから選ばれた複数種の樹脂の混合樹脂である、請求項１〜８のいずれか一項に記載の液晶表示装置。 The front side polarizing plate has a polarizing plate protective film F2 disposed on the surface of the polarizer on the liquid crystal cell side,
The polarizing plate protective film F2 is a thermoplastic resin film,
The thermoplastic resin contained in the thermoplastic resin film includes (meth) acrylic resin, polycarbonate resin, polystyrene resin, cyclic polyolefin resin, glutaric anhydride resin, glutarimide resin, cellulose resin, and these. The liquid crystal display device according to claim 1, wherein the liquid crystal display device is a mixed resin of a plurality of types of resins selected from:
［条件（Ａ）：４０℃相対湿度９５％の環境に２４時間放置］ The polarizing plate provided on the rear side (non-viewing side) of the liquid crystal cell has a difference of 0.01% between the moisture content of the polarizing plate at 25 ° C. and 60% relative humidity and the moisture content of the polarizing plate immediately after the following condition (A). The liquid crystal display device according to any one of claims 1 to 9, wherein the content is 4.0% or less.
[Condition (A): left at 40 ° C. and 95% relative humidity for 24 hours]
前記偏光板保護フィルムＦ４が、透湿度が２００ｇ／ｍ２／ｄａｙ以下であり、熱可塑性樹脂フィルムと、該熱可塑性樹脂フィルム上に積層された低透湿層とを有する、請求項１０に記載の液晶表示装置。
（ただし、透湿度は、ＪＩＳ Ｚ−０２０８の手法で、４０℃、相対湿度９０％で２４時間経過後の値である。） The rear side polarizing plate has a polarizing plate protective film F4 disposed on the surface of the polarizer on the backlight side,
The said polarizing plate protective film F4 is a moisture permeability is 200 g / m < 2 > / day or less, and has a thermoplastic resin film and the low moisture-permeable layer laminated | stacked on this thermoplastic resin film. Liquid crystal display device.
(However, the moisture permeability is the value after 24 hours at 40 ° C. and 90% relative humidity by the method of JIS Z-0208.)
式（１） Ａ／Ｂ≦０．９
（式（１）中、Ａは前記熱可塑性樹脂フィルムに前記低透湿層を積層したフィルムの透湿度を表し、Ｂは前記熱可塑性樹脂フィルムの透湿度を表す。ただし、透湿度は、ＪＩＳ
Ｚ−０２０８の手法で、４０℃、相対湿度９０％で２４時間経過後の値である。） The liquid crystal display device according to claim 11, wherein at least one of the low moisture-permeable layers of the polarizing plate protective film F <b> 4 is a low moisture-permeable layer that satisfies the following formula (1).
Formula (1) A / B <= 0.9
(In Formula (1), A represents the moisture permeability of the film which laminated | stacked the said low moisture-permeable layer on the said thermoplastic resin film, B represents the moisture permeability of the said thermoplastic resin film. However, moisture permeability is JIS.
It is a value after 24 hours at 40 ° C. and a relative humidity of 90% by the method of Z-0208. )
式（Ｉ） Ｒｅ＝（ｎｘ−ｎｙ）×ｄ
式（Ｖ） ３０００ｎｍ≦Ｒｅ≦３００００ｎｍ
（式（Ｉ）、（Ｖ）中、ｎｘは前記偏光板保護フィルムＦ４のフィルム面内の遅相軸方向の屈折率であり、ｎｙは前記偏光板保護フィルムＦ４のフィルム面内の進相軸方向の屈折率であり、ｄは前記偏光板保護フィルムＦ４の膜厚（ｎｍ）である。） The rear side (non-viewing side) polarizing plate has a polarizing plate protection film F4 disposed on the rear side (non-viewing side) surface, and the polarizing plate protection film F4 satisfies the following formulas (I) and (V). The liquid crystal display device according to claim 10, which is a film.
Formula (I) Re = (nx−ny) × d
Formula (V) 3000 nm ≦ Re ≦ 30000 nm
(In the formulas (I) and (V), nx is the refractive index in the slow axis direction in the film plane of the polarizing plate protective film F4, and ny is the fast axis in the film plane of the polarizing plate protective film F4. The refractive index in the direction, d is the film thickness (nm) of the polarizing plate protective film F4.)
式（ＶＩ） Ｎｚ＝（ｎｘ−ｎｚ）/（ｎｘ−ｎｙ）
式（ＶＩＩ） Ｎｚ≦２．０
（式（ＶＩ）中、ｎｘは前記偏光板保護フィルムＦ４のフィルム面内の遅相軸方向の屈折率であり、ｎｙは前記偏光板保護フィルムＦ４のフィルム面内の進相軸方向の屈折率であり、ｎｚは前偏光板保護フィルムＦ４の膜厚方向の屈折率である。） The rear side (non-viewing side) polarizing plate has a polarizing plate protection film F4 disposed on the rear side (non-viewing side) surface, and the polarizing plate protection film F4 satisfies the following formulas (VI) and (VII). The liquid crystal display device according to claim 14, wherein the liquid crystal display device is a film.
Formula (VI) Nz = (nx-nz) / (nx-ny)
Formula (VII) Nz ≦ 2.0
(In the formula (VI), nx is the refractive index in the slow axis direction in the film surface of the polarizing plate protective film F4, and ny is the refractive index in the fast axis direction in the film surface of the polarizing plate protective film F4. Nz is the refractive index in the film thickness direction of the front polarizing plate protective film F4.)
（ただし、透湿度は、ＪＩＳ Ｚ−０２０８の手法で、４０℃、相対湿度９０％で２４時間経過後の値である。） The said polarizing plate protective film F4 is a liquid crystal display device as described in any one of Claims 11-16 whose moisture permeability is 75 g / m < 2 > / day or less.
(However, the moisture permeability is the value after 24 hours at 40 ° C. and 90% relative humidity by the method of JIS Z-0208.)
前記偏光板保護フィルムＦ３は熱可塑性樹脂フィルムであり、
前記熱可塑性樹脂フィルムに含まれる熱可塑性樹脂が、（メタ）アクリル系樹脂、ポリカーボネート系樹脂、ポリスチレン系樹脂、環状ポリオレフィン系樹脂、グルタル酸無水物系樹脂、グルタルイミド系樹脂、セルロース系樹脂およびこれらから選ばれた複数種の樹脂の混合樹脂である、請求項１０〜１７のいずれか一項に記載の液晶表示装置。 The rear side polarizing plate has a polarizing plate protective film F3 disposed on the surface of the polarizer on the liquid crystal cell side,
The polarizing plate protective film F3 is a thermoplastic resin film,
The thermoplastic resin contained in the thermoplastic resin film includes (meth) acrylic resin, polycarbonate resin, polystyrene resin, cyclic polyolefin resin, glutaric anhydride resin, glutarimide resin, cellulose resin, and these. The liquid crystal display device according to claim 10, which is a mixed resin of a plurality of types of resins selected from the group consisting of:
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| JP6521216B2 (en) * | 2014-11-25 | 2019-05-29 | 東洋紡株式会社 | Liquid crystal display device and polarizing plate |
| CN104536205A (en) * | 2014-12-25 | 2015-04-22 | 深圳市华星光电技术有限公司 | Liquid crystal displayer |
| JP6488135B2 (en) * | 2015-01-27 | 2019-03-20 | 日東電工株式会社 | Polarizing plate and manufacturing method of polarizing plate |
| JP2016139027A (en) * | 2015-01-28 | 2016-08-04 | 日東電工株式会社 | Polarizing plate and liquid crystal display device |
| JPWO2017130585A1 (en) * | 2016-01-28 | 2018-11-22 | コニカミノルタ株式会社 | Polarizing plate, manufacturing method of polarizing plate, and liquid crystal display device |
| JP7403209B2 (en) * | 2016-07-28 | 2023-12-22 | 住友化学株式会社 | Polarizer |
| CN109804282A (en) * | 2016-10-12 | 2019-05-24 | 柯尼卡美能达株式会社 | Polarizing film and liquid crystal display device |
| WO2018199719A1 (en) | 2017-04-28 | 2018-11-01 | 주식회사 엘지화학 | Optical modulation device |
| WO2019131949A1 (en) * | 2017-12-28 | 2019-07-04 | 富士フイルム株式会社 | Laminate, method for producing laminate, and image display device |
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