摘要:
A light-polarizing film is disclosed, comprising a conductive polymer having dichroism and having an unsaturated cyclic structure in the main chain thereof. The light-polarizing film of the invention has good polarization quality and is excellent in durability under high-temperature and high-humidity conditions.
摘要:
A light-polarizing film is disclosed, comprising a conductive polymer having dichroism and having an unsaturated cyclic structure in the main chain thereof. The light-polarizing film of the invention has good polarization quality and is excellent in durability under high-temperature and high-humidity conditions.
摘要:
The present invention relates to a dye-containing light-polarizing film wherein a disazo dye represented by the formula (I) is used: ##STR1## wherein Me represents a transition metal, being copper, nickel, zinc or iron, R represents a 1-naphthol or 2-naphthol residue which is bonded to azo group at the position adjacent to its hydroxyl group forming a complex bond together with the transition metal and which may have a substituent such as a sulfonic acid, sulfonamide, amino, acylamino or arylamino group or a hydroxyl group not adjacent to the azo group, X and Y represent a hydrogen atom, a C.sub.1 -C.sub.4 alkyl, lower alkoxy, carboxylic acid, sulfonic acid, sulfonamide, sulfonalkylamide, amino, acrylamino or nitro group or a halogen atom, and Z represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl or lower alkoxy group, said formula (I) having from 1 to 3 sulfonic acid groups.Said dye-containing light-polarizing film, as compared with the conventional ones, not only exhibits a high durability, but also has excellent polarization performance enough to be comparable to the light-polarizing films in which iodine is used. Consequently, said dye-containing light-polarizing film is effectively used for use in displays in which liquid crystals are used and optical instruments including CRT filters.
摘要:
A phase retarder obtained by uniaxially stretching a thermoplastic resin film, whose retardation value ranges from 30 to 1200 nm and whose color difference .DELTA.E* is not more than 30 as defined with the phase retarder being set between crossed polarizers in such a manner that the optical axis thereof makes an angle of 45.degree. with respect to the planes of polarization of the polarizers, and a liquid crystal display using the phase retarder are disclosed. The phase retarder has a fixed optical axis, a retardation value suited for new optical uses including liquid crystal displays, and freedom from optical color unevenness. The liquid crystal display using the phase retarder exhibits markedly improved image quality.
摘要翻译:通过单相拉伸热塑性树脂膜获得的延迟器,其延迟值范围为30至1200nm,并且其相位延迟器所定义的色差DELTA E *不大于30,如相位偏振器之间设置的那样,使得 光轴相对于偏光板的偏振面成45°角,并且公开了使用相位延迟器的液晶显示器。 相位延迟器具有固定的光轴,适用于包括液晶显示器的新光学用途的延迟值,并且不受光学颜色不均匀性的影响。 使用相位延迟器的液晶显示器显示出显着提高的图像质量。
摘要:
A phase retarder and a process for producing the same are disclosed. The phase retarder is obtained by shrinking a uniaxially stretched thermoplastic high polymer film in the direction perpendicular to the stretching direction at a lengthwise shrink of at least 2%. The phase retarder has a ratio of a retardation value (R.sub.30) measured on the phase retarder being inclined at a angle of 30.degree. with respect to the orientation axis as an axis of rotation to a retardation value (R.sub.0) measured on the phase retarder being held horizontally, each measured with a polarizing microscope, (R.sub.30 /R.sub.0) of not more than 1.10, and preferably not more than 1.07. A liquid crystal display fitted with the phase retarder exhibits broad viewing angle characteristics while achieving a satisfactory B/W display level.
摘要:
By using an optically anisotropic film having the optical axis substantially parallel to the normal line of the film and comprising a polymer of a liquid crystal oligomerhaving positive anisotropy of refractive index and showing nematic or smectic phase, or by lamining the optically anisotropic film and a transparent or semitransparent polymer film, or by combining the optically anisotropic film with a uniaxially oriented retardation film, it is possible to obtain a composite retardation plate with a large viewing angle, and this retardation plate can be applied to a liquid crystal display device.
摘要:
A liquid crystal device with a compensator made of a layered inorganic compound sheet or film in which a refractive index in the plane and a refractive index in the thickness direction are different from each other. The layered inorganic compound may be smectite group minerals. The layered inorganic compound has a mean particle size of 500 nm or less. The phase retarder is employed in a liquid crystal device.
摘要:
A process for producing a phase retarder film or sheet, which comprises subjecting a stretched thermoplastic resin film or sheet to thermal relaxation at a temperature not lower than the glass transition temperature of the thermoplastic resin to shrink the film or sheet in the stretching axis direction while suppressing the expansion of the film or sheet in a direction parallel to the film or sheet surface and perpendicular to the stretching axis.
摘要:
Disclosed is a molding material for extrusion foam molding from which woody molded foam of high quality can be obtained. From the molding material, woody molded foam of high quality with no defects is efficiently produced. Constituent materials comprising woodmeal and a thermoplastic resin as major components and containing 1-5 wt % alkane having a molecular weight of 300-1,000 g/mol are melt-kneaded until the components come into an evenly dispersed state, and the resultant mixture is molded into pellets having a given diameter to obtain a molding material. Subsequently, this molding material is extrusion-molded into a given shape together with a blowing agent by means of an extrusion molding device, thereby obtaining woody molded foam. The extrusion molding is preferably conducted in a manner such that the extrudate (25a) extruded from the extruder (12) is introduced into the molding chamber (31) of a molding die (30) while keeping the extrudate in the pressurized state and the extrudate (25a) is released from the pressure upon introduction into the molding chamber (31) of the molding die (30) to foam the extrudate (25a).
摘要:
The present invention provides a transflective film comprising a polymer film having an in-plane phase retardation value of about 30 nm or less and a transflective layer made of an inorganic compound, wherein the transflective layer is coated on the polymer film and a reflectance of the transflective film is from about 10% to about 95%. When an absorption-type polarizer is laminated to the polymer film side of the transflective film, a transflective polarizer is provided. When a reflection-type polarizer is laminated to the transflective layer side of the transflective film, a transflective polarizer used in a system improving luminance is provided. Using these transflective polarizers, a polarizing light source device and a transflective liquid crystal display device are provided.