摘要:
A ferroelectric chiral smectic liquid crystal composition, comprising at least one compound represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent, at least one of R.sub.1 and R.sub.2 being optically active; and X.sub.1 denotes a single bond, --O--, ##STR2## and at least one compound represented by the following formula (II): ##STR3## wherein R.sub.3 and R.sub.4 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent; X.sub.2 and X.sub.3 respectively denote a single bond, --O--, ##STR4## and m and n are respectively 0, 1 or 2 with proviso that m+n=2 or more.
摘要:
A ferroelectric chiral smectic liquid crystal composition, comprising: at least one optically active compound represented by the following formula (II): ##STR1## wherein R.sub.3 denotes a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent; X.sub.3 denotes a single bond, ##STR2## Z.sub.1 denotes a single bond or ##STR3## and m is 1-12; at least one compound represented by the following formula (III): ##STR4## wherein R.sub.4 and R.sub.5 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent, at lease one of R.sub.4 and R.sub.5 being optically active; X.sub.4 denotes a single bond, ##STR5## and X.sub.5 denotes a single bond, ##STR6## and at least one compound represented by the following formula (I) or (IV): ##STR7## wherein R.sub.1 and R.sub.2 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent of C.sub.1 -C.sub.12 alkoxy group; X.sub.1 and X.sub.2 respectively denote a single bond, point and non-selected ##STR8## wherein R.sub.6 and R.sub.7 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent; X.sub.6 and X.sub.7 respectively denote a single bond, ##STR9## Z.sub.2 denotes ##STR10## or a single bond; ##STR11## respectively denote ##STR12## denotes ##STR13## with the proviso that at least one of ##STR14## is ##STR15##
摘要:
A ferroelectric chiral smectic liquid crystal composition, comprising at least one compound represented by the following formula (I): ##STR1## wherein R.sub.1 denotes a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent; R.sub.2 denotes a linear or branched alkyl group having 1-14 carbon atoms capable of having a substituent; X.sub.1 and X.sub.2 respectively denote a single bond, --O--, ##STR2## m is 0-7; and n is 0 or 1; and at least one compound represented by the following formula (II): ##STR3## wherein R.sub.3 and R.sub.4 respectively denote a linear alkyl group having 1-18 carbon atoms and one --CH.sub.2 -- not bonded to X.sub.4 in the alkyl group can be replaced with --O--; X.sub.3 and X.sub.4 respectively denote a single bond, --O--, ##STR4## and p and q are respectively 0, 1 or 2 with proviso that both of p and q are not 0.
摘要:
An optically active lactic acid derivative represented by the following formula (I): ##STR1## wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 to 18 carbon atoms; C* represents an asymmetric carbon atom; l is 0 or 1; m is 1 or 2; A represents a group selected from the following groups (a) and (b):(a) hydroxyl group, halogen, benzyloxy group, phenoxy group, toluenesulfonic acid group, acetyloxy group trifluoroacetyloxy group; ##STR2## (wherein R' is an alkyl group or alkoxy group having 4 to 18 carbon atoms, n is 0 or 1, ##STR3## with proviso that when A is selected from the group in the above group (a), l is 1 and m is 1 or 2; and when A is selected from the groups in the above group (b), m=n=1 when l is 0, or m and n are 0, 1 or 2 and m+n is 1 or 2 when l is 1, and ##STR4##
摘要翻译:由下式(I)表示的光学活性乳酸衍生物:其中R表示具有1至18个碳原子的直链,支链或环状饱和或不饱和烃基; C *表示不对称碳原子; l为0或1; m为1或2; A表示选自以下组(a)和(b)中的基团:(a)羟基,卤素,苄氧基,苯氧基,甲苯磺酸基,乙酰氧基三氟乙酰氧基; (其中R'为具有4至18个碳原子的烷基或烷氧基,n为0或1,条件是当A选自上述组(a)中时,l为 1和m为1或2;当A选自上述组(b)中的基团时,当l为0时,m = n = 1,或m和n为0,1或2,m + n为1 或当l为1时为2,而为
摘要:
An object of the present invention is to maintain sufficient light extraction from an organic light emitting device and reduce reflection of external light. There are arranged a polarizing member, a prism member, a phase member, and an organic light emitting element which has an organic light emitting layer arranged between a pair of electrodes, in mentioned order from the side of a light extraction surface. When the prism member includes two sheets, the vertex angle of the prism member sheet arranged on the side of the organic light emitting element is preferably a vertex or less of the prism member arranged on the side of the light extraction surface. Furthermore, the prism members are preferably arranged so that pitch directions thereof are orthogonal to each other.
摘要:
A ferroelectric liquid crystal device comprising a pair of substrates each provided with an electrode thereon, and a ferroelectric liquid crystal layer disposed between the substrates in a thickness which is thin enough to release the spiral structure of the ferroelectric liquid crystal, wherein the ferroelectric liquid crystal provides two average molecular axis directions forming an angle 2.theta. therebetween, each average molecular axis direction corresponding to one or two stable orientation states of the ferroelectric liquid crystal, the ferroelectric liquid crystal provides two average molecular axis directions forming an angle 2 .circle.H therebetween when voltages exceeding the threshold voltage of the ferroelectric liquid crystal are applied to the ferroelectric liquid crystal, and the ferroelectric liquid crystal provides two average molecular directions forming an angle 2.theta.a therebetween after applying an alternating electric field to the ferroelectric liquid crystal and removing the electric field, the angles .theta., .circle.H and .theta.a satisfying the relationships of: .theta.
摘要:
A member configured to absorb a predetermined wavelength range for light having an incident angle is located on the first electrode side of a light emitting device and settings are made so that the hue of light emitted in a direction having an angle with respect to the front becomes yellow when the light emitting device emits white light.
摘要:
In a light emitting display apparatus, excellent color reproducibility and high luminance for an emission color having a low color purity and low emission efficiency are realized. An electroluminescent layer whose color purity and emission efficiency are to be improved is stacked as a first layer on a substrate, and is interposed between a reflective electrode layer and a semi-reflective electrode, and then light extracted from the electroluminescent layer is intensified by interference between a reflective surface in the reflective electrode layer and a reflective surface in the semi-reflective electrode.
摘要:
There is provided an organic light-emitting apparatus in which the luminance can be improved, and, at the same time, the reflection of ambient light can be reduced by adding a prism member and a light-absorbing member to a spontaneous light-emitting device such as an organic light-emitting device, and which includes: a plurality of organic light-emitting devices each having a pair of electrodes and an organic compound layer formed between the pair of electrodes; a prism member disposed on a light extraction side of the organic light-emitting device, an interface on the light extraction side of the prism member being an interface with air; and a light-absorbing member formed between the plurality of organic light-emitting devices, around the prism member, and on a side portion of a protrusion of the prism member.
摘要:
According to the invention, after a transparent electrode is vapor-deposited over the entire color-filter side surface, a non-conductive film is laid where the presence of the transparent electrode causes problems. That is, this non-conductive film is formed of the same material and at the same time as an alignment regulation film over the whole or a part of the area where exposure of the transparent electrode causes problems so as to seal the transparent electrode there. This makes it possible to prevent the above-mentioned problems caused when the transparent electrode is vapor-deposited over the entire surface, and simultaneously to enhance the patterning accuracy up to the exposure accuracy (of the order of several μm) of proximity or the like so as to realize a product with a narrow frame.