Abstract:
An adhesive film for polarizing plates, a polarizing plate including the same, and an optical display including the same are provided. An adhesive film for polarizing plates is formed of an adhesive composition for polarizing plates, which includes a non-carboxylic acid (meth)acrylic copolymer, an isocyanate curing agent, and an epoxy curing agent, wherein the adhesive film has a modulus at 85° C. of about 0.1 MPa to about 0.8 MPa and a modulus ratio of about 3 or less, as calculated by the equation, Modulus ratio=G′(25° C.)/G′(85° C.), where G′(25° C.) is modulus (unit: MPa) at 25° C. of an adhesive film and G′(85° C.) is modulus (unit: MPa) at 85° C. of the adhesive film.
Abstract:
An adhesive film for polarizing plates has a K value of about 0.2 to about 0.5, as calculated by Equation 1. A polarizing plate includes the adhesive film for polarizing plates. An optical display includes the polarizing plate. The adhesive films for polarizing plates according to embodiments of the invention suppress light leakage due to dimensional changes in the polarizing plates at high temperature and/or high humidity. K=ΔG′×ΔR0 Equation 1
Abstract:
An adhesive composition for a polarizing plate, an adhesive film formed from the same, a polarizing plate including the same, and an optical display including the same are disclosed. The adhesive film for a polarizing plate is formed from an adhesive composition including an epoxy compound and a (meth)acrylate compound, and the adhesive film has an FT-IR peak ratio of about 0.015 or lower as defined by Equation 1. Equation 1 FT-IR peak ratio=B/A (1) In Equation 1, A is the peak height of the peak attributable to the —(C═O)— bond at 1724 cm−1, and B is the peak height of the peak attributable to the —CH═CH— bond at 1636 cm−1.
Abstract translation:公开了一种用于偏振片的粘合剂组合物,由其形成的粘合剂膜,包括该粘合剂的偏振片和包括其的光学显示器。 用于偏振片的粘合剂膜由包含环氧化合物和(甲基)丙烯酸酯化合物的粘合剂组合物形成,并且粘合剂膜具有如等式1所定义的约0.015或更低的FT-IR峰值比。等式1 FT -IR峰值比= B / A(1)在等式1中,A是归属于1724cm-1处的 - (C = O) - 键的峰的峰高,B是归属于峰的峰高 到1636cm -1处的-CH = CH-键。
Abstract:
A polarizing plate includes a polarizing film, a first adhesive layer or a bonding layer, a retardation layer, and a third adhesive layer, and includes: a UV absorber comprising an indole UV absorber, a phenylbenzotriazole UV absorber, and/or a triazine UV absorber, wherein the UV absorber has a maximum absorption wavelength of 370 nm or higher, the polarizing plate has a light transmittance of 5% or less in a wavelength range of about 400 nm to about 405 nm and a light transmittance of 35% or higher in a wavelength range of about 440 nm to about 450 nm, the first adhesive layer has a modulus of 1×105 Pa or higher at 80° C. and a modulus of 1×105 Pa or higher at 30° C., and the third adhesive layer has a modulus of 5×104 Pa to 1×106 Pa at 80° C. and a modulus of 1×105 Pa to 3×106 Pa at 30° C.
Abstract:
An adhesive film for polarizing plates, a polarizing plate including the same, and an optical display including the same are provided. An adhesive film for polarizing plates is formed of an adhesive composition for polarizing plates, which includes a non-carboxylic acid (meth)acrylic copolymer, an isocyanate curing agent, and an epoxy curing agent, wherein the adhesive film has a modulus at 85° C. of about 0.1 MPa to about 0.8 MPa and a modulus ratio of about 3 or less, as calculated by the equation, Modulus ratio=G′(25° C.)/G′(85° C.), where G′(25° C.) is modulus (unit: MPa) at 25° C. of an adhesive film and G′(85° C.) is modulus (unit: MPa) at 85° C. of the adhesive film.
Abstract:
An adhesive film for a polarizing plate includes a functional group represented by Formula 1: wherein * represents a binding site; A is a C1 to C20 aliphatic hydrocarbon group; B is —O—, —S—, a C1 to C20 aliphatic hydrocarbon group, or a single bond; R2 is a C1 to C20 aliphatic hydrocarbon group; and n is an integer from 1 to 5.
Abstract:
An adhesive film for polarizing plates has a K value of about 0.2 to about 0.5, as calculated by Equation 1. A polarizing plate includes the adhesive film for polarizing plates. An optical display includes the polarizing plate. The adhesive films for polarizing plates according to embodiments of the invention suppress light leakage due to dimensional changes in the polarizing plates at high temperature and/or high humidity. K=ΔG′×ΔR0 Equation 1
Abstract translation:用于偏振片的粘合膜的K值为约0.2至约0.5,如由等式1计算的。偏振片包括用于偏振片的粘合剂膜。 光学显示器包括偏振片。 根据本发明的实施方案的偏振片用粘合膜抑制了偏振片在高温和/或高湿度下的尺寸变化引起的漏光。 K =&Dgr; G'×&Dgr; R0等式1
Abstract:
An adhesive composition for a polarizing plate, an adhesive film formed from the same, a polarizing plate including the same, and an optical display including the same are disclosed. The adhesive film for a polarizing plate is formed from an adhesive composition including an epoxy compound and a (meth)acrylate compound, and the adhesive film has an FT-IR peak ratio of about 0.015 or lower as defined by Equation 1. Equation 1 FT-IR peak ratio=B/A (1) In Equation 1, A is the peak height of the peak attributable to the —(C═O)— bond at 1724 cm−1, and B is the peak height of the peak attributable to the —CH═CH— bond at 1636 cm−1.
Abstract translation:公开了一种用于偏振片的粘合剂组合物,由其形成的粘合剂膜,包括该粘合剂的偏振片和包括其的光学显示器。 用于偏振片的粘合剂膜由包含环氧化合物和(甲基)丙烯酸酯化合物的粘合剂组合物形成,并且粘合剂膜具有如等式1所定义的约0.015或更低的FT-IR峰值比。等式1 FT -IR峰值比= B / A(1)在等式1中,A是归属于1724cm-1处的 - (C = O) - 键的峰的峰高,B是归属于峰的峰高 到1636cm -1处的-CH = CH-键。