摘要:
To provide a compound, when the compound has both a high clearing point and a low crystallization temperature, having a wide temperature range of a liquid crystal phase and also an excellent solubility in other liquid crystal compounds, and further having general physical properties necessary for the compound, namely, stability to heat, light and so forth, a suitable optical anisotropy and a suitable dielectric anisotropy. A compound is represented by formula (1): wherein, for example, Ra and Rb are alkyl having 1 to 10 carbons; A1, A2, A3 and A4 are 1,4-phenylene; Z1, Z2, Z3 and Z4 are a single bond or alkylene having 1 to 4 carbons; and m, n, q and r are independently 0, 1, or 2, and a sum of m, n, q and r is 1, 2, 3 or 4.
摘要翻译:为了提供化合物,当化合物具有高透明度和低结晶温度时,具有宽的液晶相的温度范围,并且在其它液晶化合物中也具有优异的溶解性,并且还具有对于 化合物,即对热,光等的稳定性,合适的光学各向异性和合适的介电各向异性。 化合物由式(1)表示:其中,例如,Ra和Rb是具有1至10个碳的烷基; A1,A2,A3和A4是1,4-亚苯基; Z 1,Z 2,Z 3和Z 4为单键或碳原子数为1〜4的亚烷基; m,n,q和r分别为0,1或2,m,n,q和r的和为1,2,3或4。
摘要:
The invention provides a liquid crystal compound represented by formula (1): wherein, in formula (I), for example, R1 is fluorine, chlorine, or alkyl having 1 to 10 carbons, and in the alkyl, at least one of —CH2— may be replaced by —O—, —S—, —CO— or —SiH2—, and at least one of —(CH2)2— may be replaced by —CH═CH— or —C≡C—. The compound has a low threshold voltage and excellent compatibility with other liquid crystal compounds, and further excellent general physical properties required for the compound. The invention also provides a liquid crystal composition containing at least one of the compounds and having excellent properties, and a liquid crystal display device including the composition, and having a wide usable temperature range, a short response time, a large contrast ratio and a low driving voltage, and therefore can be used for a liquid crystal projector and a liquid crystal television.
摘要:
A hard coating film is provided and includes a transparent plastic substrate film, and a hard coating layer. The transparent plastic substrate film has mutually independent microscopic pits in at least one surface thereof, the microscopic pits each independently have a depth of 3 μm or below, the microscopic pits have an average length of major diameters of from 0.5 μm to 20 μm, and the number of the microscopic pits is from 25 to 3,000 per mm2.
摘要翻译:提供了硬涂层,并且包括透明塑料基底膜和硬涂层。 透明塑料基材薄膜在其至少一个表面上具有相互独立的微观凹坑,微观凹坑各自独立地具有3μm或更小的深度,微观凹坑具有0.5μm至20μm的平均长度,以及 微观凹坑的数量为25至3,000个/ mm 2。
摘要:
A method for producing a transparent polymer film, comprising heat-treating a polymer film containing a polymer and a plasticizer having a number-average molecular weight of from 500 to 10000 and having a repetitive unit, at a temperature T (unit, ° C.) satisfying the following formula (1): Tc≦T
摘要翻译:一种透明聚合物膜的制造方法,其特征在于,在温度T(单位:℃)下,对含有聚合物的聚合物膜和数均分子量为500〜10000的增塑剂进行热处理,并具有重复单元。 )满足下列公式(1):Tc≦̸ T
摘要:
The present invention relates to an optical film produced by stretching a film having a low residual solvent amount in a machine direction followed by heat-treating it at a temperature falling from the glass transition point (Tg) to the melting point (Tm) thereof, which is a cellulose acylate film satisfying the following relations (1) to (6) and containing at least one cellulose acylate and at least one retardation enhancer having an absorption maximum wavelength λmax of from 280 nm to 380 nm: (1) 35 nm≦Re(550)≦75 nm, (2) 85 nm≦Rth(550)≦140 nm, (3) 0 nm
摘要:
There is provided an optical film having a small size change with a temperature change of a support of a pattern retardation film.An optical film includes: a support comprising a polymer having a moisture permeability of 0.5% or more; a first retardation region and a second retardation region, in which birefringence thereof is mutually different; and an optically anisotropic layer in which the first retardation region and the second retardation region are alternately patterned for every one line.
摘要:
Disclosed is a visible light-transmissive liquid-crystalline compound having good hole and electron-transport characteristics and useful as an organic semiconductor material. The compound is represented by a formula (1): wherein R independently represents hydrogen, or alkyl having from 1 to 24 carbon atoms, and any —CH2— in the alkyl may be replaced by —O—, —S—, —CO— or —SiH2—, any —(CH2)2— may be replaced by —CH≡CH— or —C═C—, and any hydrogen may be replaced by halogen; Ar represents naphthylene, anthrylene, phenanthrylene, or phenylene; and every hydrogen in phenylene is replaced by halogen, and any hydrogen in naphthylene, anthrylene and phenanthrylene may be replaced by halogen.
摘要:
A transparent polymer film satisfying Re≧15 and Rth≦−7.5, and having a moisture permeability at 40° C. and a relative humidity of 90% of at least 100 g/(m2·day) as calculated in terms of the film having a thickness of 80 μm. This film can be stuck to a polarizing film in on-line operation.
摘要:
A cellulose acylate film satisfying Re≧40 is produced by transporting a cellulose acylate film having a substitution degree of acyl substituted for hydroxyl group of cellulose of 2.88 or higher, and subjecting the film to heat treatment at 160° C. or higher.
摘要:
There is provided an optical film having a small size change with a temperature change of a support of a pattern retardation film. An optical film includes: a support comprising a polymer having a moisture absorptivity of 0.5% or more; a first retardation region and a second retardation region, in which birefringence thereof is mutually different; and an optically anisotropic layer in which the first retardation region and the second retardation region are alternately patterned for every one line.