In light of requests to reduce or reverse the wavelength dispersion of the birefringence of a phase-retardation film in order to increase the viewing angle of a liquid crystal display, the present invention provides a polymerizable compound that reduces, for example, the likelihood of crystals precipitating in a polymerizable composition including the polymerizable compound and enables the polymerizable composition to have high preservation stability and a polymerizable composition including the polymerizable compound which reduces the likelihood of inconsistencies being formed in a film-like polymer produced by polymerizing the polymerizable composition. Another object of the present invention is to provide a polymer produced by polymerizing the polymerizable composition and an optically anisotropic body including the polymer.

A compound represented by Formula (1) or (11) below,

X-A.sup.1-(N═N-A.sup.2).sub.n-N═N-A.sup.3-Y  (1) (in Formula (1), -A.sup.1- and -A.sup.2- each independently represent an unsubstituted or substituted divalent group of an aromatic heterocyclic ring including one or more S atoms wherein atoms constituting the aromatic heterocyclic ring other than a carbon atom are not adjacent to one another, an unsubstituted or substituted divalent group of a benzisothiazole ring, or an unsubstituted or substituted divalent group of an aromatic hydrocarbon ring; -A.sup.3- represents an unsubstituted or substituted divalent group of an aromatic hydrocarbon ring; —X represents a branched alkyl, alkoxy, or alkylsulfanyl group having 3 or more carbon atoms; —Y represents a monovalent organic group; n represents 1, 2, or 3; when n is 2 or 3, a plurality of -A.sup.2-'s may be identical to or different from one another; and -A.sup.1- and -A.sup.2- do not represent an unsubstituted or substituted divalent group of an aromatic hydrocarbon ring at the same time),

X-A.sup.41-(N═N-A.sup.42).sub.n-N═N-A.sup.43-Y  (11) (in Formula (11), at least one -A.sup.42- represents an unsubstituted or substituted divalent group of an aromatic heterocyclic ring including one or more S atoms; -A.sup.41- and -A.sup.43- each independently represent an unsubstituted or substituted divalent group of an aromatic hydrocarbon ring; —X represents a branched alkyl, alkoxy, or alkylsulfanyl group having 3 or more carbon atoms; —Y represents a monovalent organic group; n represents 1, 2, or 3; and when n is 2 or 3, a plurality of -A.sup.42-'s may be identical to or different from one another).

The present invention relates to a polymerizable mixture which can be used to form a dielectric material for the preparation of passivation layers in electronic devices. The polymerizable mixture comprises a first monomer and a second monomer which may react to form a copolymer providing excellent film forming capability, excellent thermal properties and excellent mechanical properties. There is further provided a method for forming said copolymers and an electronic device containing said copolymers as dielectric material. Beyond that, the present invention relates to a manufacturing method for preparing a packaged microelectronic structure and to a microelectronic device comprising said packaged microelectronic structure formed by said manufacturing method.

The present invention relates to optionally polymerizable mesogen compounds that include a polyvalent non-mesogenic core X to which is bonded three or four separate extensions, where each extension independently includes, in sequence, a linking group -L-, and a mesogen group -[Mesogen]. The mesogen compounds are represented by the following Formula (I), With reference to Formula (I), v is 3 or 4; t is 0 or 1; at least one Mesogen includes at least four cyclic groups; each -L- independently has an average chain length of at least 15 bonds; and at least one -L- has an average chain length of at least 25. Also described are liquid crystal compositions that include such mesogen compounds, and optical elements that include such mesogen compounds.

A phase difference film is formed by using a liquid crystal compound and that indicates an Nz factor of more than 0 and less than 1, an optical film with same, and a display device. The phase difference film is formed by using a composition including a polymerizable liquid crystal compound having a mesogen group, where an order parameter of the mesogen group in an in-plane slow axis direction of the phase difference film is set as Sx, an order parameter of the mesogen group in a direction orthogonal to the in-plane slow axis direction in a plane is set as Sy, and an order parameter of the mesogen group in a thickness direction of the phase difference film is set as Sz, in a case where the mesogen group has a rod or a disc shape, differing Expressions are satisfied.

In light of requests to reduce or reverse the wavelength dispersion of the birefringence of a phase-retardation film in order to increase the viewing angle of a liquid crystal display, the present invention provides a polymerizable compound that reduces, for example, the likelihood of crystals precipitating in a polymerizable composition including the polymerizable compound and enables the polymerizable composition to have high preservation stability and a polymerizable composition including the polymerizable compound which reduces the likelihood of inconsistencies being formed in a film-like polymer produced by polymerizing the polymerizable composition. Another object of the present invention is to provide a polymer produced by polymerizing the polymerizable composition and an optically anisotropic body including the polymer.

A phase difference film is formed by using a liquid crystal compound and that indicates an Nz factor of more than 0 and less than 1, an optical film with same, and a display device. The phase difference film is formed by using a composition including a polymerizable liquid crystal compound having a mesogen group, where an order parameter of the mesogen group in an in-plane slow axis direction of the phase difference film is set as Sx, an order parameter of the mesogen group in a direction orthogonal to the in-plane slow axis direction in a plane is set as Sy, and an order parameter of the mesogen group in a thickness direction of the phase difference film is set as Sz, in a case where the mesogen group has a rod or a disc shape, differing Expressions are satisfied.

A polymerizable mixture which can be used to form a dielectric material for the preparation of passivation layers in electronic devices comprises a first monomer and a second monomer which may react to form a copolymer providing excellent film forming capability, excellent thermal properties, and excellent mechanical properties. The polymerizable mixture can be used in a method for forming copolymers and the copolymers can be used in an electronic device as dielectric material. The copolymers can also be used in a manufacturing method for preparing a packaged microelectronic structure and microelectronic devices comprising the packaged microelectronic structure.

A compound of formula (1) or (11):
X-A.sup.1-(N?N-A.sup.2).sub.n-N?N-A.sup.3-Y(1)
X-A.sup.41-(N?N-A.sup.42).sub.n-N?N-A.sup.43-Y(11), -A.sup.1- and -A.sup.2- being independently a divalent group of an S-containing aromatic heterocyclic ring, with no adjacent non-carbons in the ring, a divalent group of a benzisothiazole ring, or a divalent group of an aromatic hydrocarbon ring, -A.sup.3- being a divalent group of an aromatic hydrocarbon ring, X is a branched alkyl, alkoxy, or alkylsulfanyl group having 3 or more carbon atoms, Y is a monovalent organic group, n is 1, 2, or 3, when n is 2 or 3, a plurality of -A.sup.2-s and/or -A.sup.42-s optionally differing, wherein -A.sup.1- and -A.sup.2- are not both a divalent group of an aromatic hydrocarbon ring, at least one -A.sup.42- is a divalent group of an S-containing aromatic heterocyclic ring, -A.sup.41- and -A.sup.43- are independently a divalent group of an aromatic hydrocarbon ring.

The present invention provides a polymerizable liquid crystal composition capable of forming a uniform homeotropic alignment in producing a polymer through polymerization of the polymerizable liquid crystal composition. Further, the present invention provides a polymer obtained through polymerization of the polymerizable liquid crystal composition and having good alignment performance and high durability (retardation retention) with little cissing, and an optically anisotropic body using the polymer. Specifically, the present invention provides a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound represented by the general formula (II-1), one or more kinds of polymerizable liquid crystal compounds (II-2) having one polymerizable functional group and/or one or more kinds of polymerizable liquid crystal compounds having 2 or more polymerizable functional groups in the molecule and represented by the general formula (I-1).