摘要:
A birefringent film with excellent uniformity in in-plane retardation, retardation in the thickness direction, and alignment axis is provided. The birefringent film is produced in such a manner that, in the step of stretching a polymer film, the polymer film is stretched in a width direction while being shrunk in a longitudinal direction, and assuming that lengths in the width direction and the longitudinal direction of the polymer film before being stretched are 1, a change ratio (STD) of the length in the width direction of the polymer film resulting from the stretching and a change ratio (SMD) of the length in the longitudinal direction of the polymer film resulting from the shrinking satisfy the following formula (1). (1/STD)1/2≦SMD
摘要:
A birefringent film with excellent uniformity in in-plane retardation, retardation in the thickness direction, and alignment axis is provided. The birefringent film is produced in such a manner that, in the step of stretching a polymer film, the polymer film is stretched in a width direction while being shrunk in a longitudinal direction, and assuming that lengths in the width direction and the longitudinal direction of the polymer film before being stretched are 1, a change ratio (STD) of the length in the width direction of the polymer film resulting from the stretching and a change ratio (SMD) of the length in the longitudinal direction of the polymer film resulting from the shrinking satisfy the following formula (1). (1/STD)1/2≦SMD
摘要:
A method for manufacturing a coated sheet that forms a coated layer having a uniform film thickness by a coating liquid even when a substrate has a large area. A method for manufacturing a coated sheet to form a coated layer by a process including a process (1) for coating a coating liquid including a resin material and a solvent on a substrate, and a drying process (2) for drying a coated liquid, wherein a drying speed of a coated liquid in the drying process (2) is set 0.3 [g/m2·s] or less.
摘要翻译:即使在基板面积大的情况下,也可以通过涂布液形成涂膜均匀的涂布层的制造方法。 一种通过包括用于在基材上涂布包括树脂材料和溶剂的涂布液的方法(1)的方法和用于干燥涂布液体的干燥工艺(2)的方法制造涂覆的薄板以形成涂层的方法, 其中干燥过程(2)中涂覆液体的干燥速度设定为0.3 [g / m 2以上]以下。
摘要:
The present invention provides a polarizer and a polarizing plate having less dimensional changes to heat stress. The present invention provides also a liquid crystal display that includes the polarizer and the polarizing plate, and is free of color irregularity or decoloration. The polarizer has shrinkage force of not more than 4.0 N/cm in the absorption axis direction after being heated at 80° C. for 30 minutes. A protective film is laminated on at least one surface of the polarizer in order to form a polarizing plate, and the polarizing plate has a following relationship of 0.01≦A/B≦0.16 when A denotes a thickness of the polarizer and B denotes a thickness of the protective film.
摘要翻译:本发明提供一种偏振片和偏振片,其具有较小的热应力尺寸变化。 本发明还提供一种液晶显示器,其包括偏振片和偏振片,并且没有颜色不规则或脱色。 在80℃下加热30分钟后,偏振片的吸收轴方向的收缩力为4.0N / cm以下。 在偏振片的至少一个表面上层叠保护膜以形成偏振片,并且当A表示偏振片的厚度时,偏振片的关系为0.01 <= A / B <= 0.16,B表示 保护膜的厚度。
摘要:
The present invention provides a polarizing film having a high polarization degree and high transmittance, a process for producing the polarizing film, and a polarizing plate using the polarizing film, and an optical member. In the process for producing the polarizing film, a polyvinyl alcohol-based film is dry-stretched uniaxially, relaxed in an aqueous solution containing iodine or a dichroic dyestuff, and further stretched in an aqueous solution containing a PVA crosslinking agent. It is preferable that the polyvinyl alcohol-based film has a dry-stretch ratio of at least 2, the film after relaxation has a stretch ratio of at least 1.02, and the total stretch ratio is at most 6.5. It is also preferable that the relaxation rate is at most 10% of the dry-stretch ratio.
摘要:
A polarizer provide that has a high polarization degree and a high transmittance, which is made of a polyvinyl alcohol film, may be produced by a process of producing, comprising the steps of: subjecting a non-stretched polyvinyl alcohol film to uniaxial dry stretching treatment to give a stretch ratio of 4 times or less, dyeing the film, and then subjecting the film to uniaxial stretching treatment to give a stretch ratio of less than 1.5 times under the condition containing a boron compound.
摘要:
The present invention pertains to a method of fabricating a polarizing film by uniaxially stretching a resin film such as a polyvinyl alcohol-based film in a fabrication process including a swelling step and a dyeing step following the swelling step, comprising the steps of immersing a resin film in bath liquids in at least two or more swelling baths in sequence in the above-mentioned swelling step, wherein at least a bath temperature of a swelling bath located at a Nth position from the front-stage side is set at a temperature which is higher than a bath temperature of a swelling bath located at a (N+M)th position by 3° C. or more (both N and M are specified positive integers).
摘要:
A method for producing a multilayer laminated film comprising: laminating a resin film having a moisture percentage of 10% by weight to 60% by weight with a first transparent film and a second transparent film each having a moisture percentage of 0.5% by weight to 5% by weight to be bonded to both sides of the resin film through an adhesive or pressure-sensitive adhesive layer interposed therebetween; wherein the laminating comprising steps of: passing the resin film and the first transparent film between a pair of a first metal roll and a first elastic roll in such a manner that the first transparent film is placed on the first metal roll side so that they are bonded to each other under pressure to form a laminated film; and then, using the laminated film without winding up it and passing the laminated film and the second transparent film between a pair of a second metal roll and a second elastic roll in such a manner that the second transparent film is placed on the second metal roll side so that they are bonded to each other under pressure to form a multilayer laminated film. The method can prevent bubbles from being formed between the resin film and the transparent film.
摘要:
A method for manufacturing a coated sheet that may form a coated layer having a uniform film thickness by a coating liquid even when a substrate has a large area is provided.A method for manufacturing a coated sheet to form a coated layer by a process including a process (1) for coating a coating liquid including a resin material and a solvent on a substrate, and a drying process (2) for drying a coated liquid, wherein a drying is performed under drying wind flow having an average wind speed of 10 m/s or less until a viscosity of the coated liquid in the drying process (2) reaches at least 50 [mPa·s] at drying temperatures.
摘要:
A polarizing plate having excellent moisture durability and a liquid crystal display using the same are disclosed. The polarizing plate is produced by covering all surfaces and sides of a polarizer with low moisture-permeable layers having moisture permeability of 310 g/m2·24 h or less. The rate of change in dimension of the polarizer in the uniaxially stretched direction is ±0.1% or less after left at a temperature of 60° C. and humidity of 95% for 100 hours.
摘要翻译:公开了一种具有优异的耐湿性的偏光板和使用其的液晶显示器。 偏光板通过覆盖具有310g / m 2以下的透湿性低的透湿层的偏振片的所有表面和侧面.24小时以下。 偏振器在单轴向拉伸方向上的尺寸变化率在离开温度60℃,湿度95%100小时后为±0.1%以下。