Abstract: A monomer represented by Chemical Formula 1: wherein in Chemical Formula 1, X1, X2, L1, Y1, Y2, R1 to R9, n1, and n2 are the same as described in the detailed description.

Abstract: A monomer is represented by Chemical Formula 1: wherein in Chemical Formula 1, X1 and X2 are independently O, C(?O), or C(?O)O, R1 to R10 are independently hydrogen, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a substituted or unsubstituted silyl group, a hydroxy group, a halogen, a nitro group, or a combination thereof, and n1 and n2 are independently an integer ranging from 0 to 3.

Abstract: A polymer including a first structural unit represented by Chemical Formula 1: wherein L1, R1 to R5 and n1 in Chemical Formula 1 are the same as described in the detailed description.

Abstract: A compensation film including a polymer having a first structural unit represented by Chemical Formula 1, and having a photoelastic coefficient of less than or equal to about 40×10?13 cm2/dyn wherein in Chemical Formula 1, Ar1, X, L1, and R1 are the same as described in the detailed description.

Abstract: A compound represented by Chemical Formula 1: wherein in Chemical Formula 1, R1 and R2 are the same or different, and are each independently an electron-withdrawing group, R3 to R6 are the same or different, and are each independently selected from a hydrogen, a substituted or unsubstituted C1 to C20 alkyl group, and a substituted or unsubstituted C6 to C20 aryl group, and n11 and n12 are the same or different, and are each independently an integer from 1 to 4.

Abstract: A monomer represented by Chemical Formula 1: wherein in Chemical Formula 1, X1, X2, L1, Y1, Y2, R1 to R9, n1, and n2 are the same as described in the detailed description.

Abstract: A monomer is represented by Chemical Formula 1: wherein in Chemical Formula 1, X1 and X2 are independently O, C(?O), or C(?O)O, R1 to R10 are independently hydrogen, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a substituted or unsubstituted silyl group, a hydroxy group, a halogen, a nitro group, or a combination thereof, and n1 and n2 are independently an integer ranging from 0 to 3.

Abstract: A compensation film including a polymer having a first structural unit represented by Chemical Formula 1, and having a photoelastic coefficient of less than or equal to about 40×10?13 cm2/dyn wherein in Chemical Formula 1, Ar1, X, L1, and R1 are the same as described in the detailed description.

Abstract: A polymer including a first structural unit represented by Chemical Formula 1: wherein L1, R1 to R5 and n1 in Chemical Formula 1 are the same as described in the detailed description.

Abstract: A polymerizable liquid crystal compound represented by Chemical Formula 1: wherein in Chemical Formula 1, groups and variables are the same as defined in the detailed description.

Abstract: A monomer represented by Chemical Formula 1-1 wherein in Chemical Formula 1-1, Z, L1, L2, R1 to R6, n, m, p, and a to f are the same as defined in the detailed description.

Abstract: A polymerizable liquid crystal compound is represented by Chemical Formula 1: wherein, in Chemical Formula 1 groups and variables are the same as defined in the detailed description.

Abstract: A compound represented by Chemical Formula 1: wherein in Chemical Formula 1, R1 and R2 are the same or different, and are each independently an electron-withdrawing group, R3 to R6 are the same or different, and are each independently selected from a hydrogen, a substituted or unsubstituted C1 to C20 alkyl group, and a substituted or unsubstituted C6 to C20 aryl group, and n11 and n12 are the same or different, and are each independently an integer from 1 to 4.

Abstract: A compound represented by Chemical Formula 1: wherein in Chemical Formula 1, R1 and R2 are the same or different, and are each independently an electron-withdrawing group, R3 to R6 are the same or different, and are each independently selected from a hydrogen, a substituted or unsubstituted C1 to C20 alkyl group, and a substituted or unsubstituted C6 to C20 aryl group, and n11 and n12 are the same or different, and are each independently an integer from 1 to 4.

Abstract: A polymerizable liquid crystal compound is represented by Chemical Formula 1: wherein, in Chemical Formula 1 groups and variables are the same as defined in the detailed description.

Abstract: A poly(imide-amide) copolymer, which is a product of a reaction between a diamine and a dianhydride, wherein the diamine comprises a diamine represented by Chemical Formula 1 and the dianhydride comprises a dianhydride represented by Chemical Formula 5: wherein, the variables in Chemical Formulae 1 and 5 are described in the specification.

Abstract: Disclosed is a polyimide composition including a copolymer including first and/or second repeating unit including an imide repeating unit, or an amic acid repeating unit to form an imide repeating unit through imidization, and a third repeating unit including an amid repeating unit, wherein at least one terminal end of the copolymer is substituted with a substituted or unsubstituted siloxane or silanol group; and an inorganic particle or a precursor thereof.

Abstract: A composition including a plurality of oligomers including at least one selected from a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 2, and a combination thereof; and at least one selected from a repeating unit represented by Chemical Formula 3, a repeating unit represented by Chemical Formula 3A, and a combination thereof; wherein at least a part of the plurality of oligomers includes at least one terminal end having an amino group, and wherein at least a part of the plurality of oligomers including at least one terminal end having an amino group is a diamine having a pKa value of equal to or less than 3 at 25° C.: wherein the variables in Chemical Formulae 1, 2, 3, and 3A are described in the specification.

Abstract: A poly(imide-amide) copolymer including a structural unit represented by Chemical Formula 1, a structural unit represented by Chemical Formula 2, and a structural unit represented by Chemical Formula 3: wherein substituents, groups and variables in Chemical Formulae 1 to 3 are as defined in the specification.

Abstract: A poly(imide-amide) copolymer including a structural unit represented by Chemical Formula 1, a structural unit represented by Chemical Formula 2, and a structural unit represented by Chemical Formula 3: wherein substituents, groups and variables in Chemical Formulae 1 to 3 are as defined in the specification.