Provided is a compound of Chemical Formula 1:

##STR00001## wherein X is O or S; L1 and L2 each independently is a direct bond or a substituted or unsubstituted arylene group; X1 is N or CR1, X2 is N or CR2, X3 is N or CR3, and at least two of X1 to X3 are N; R1 to R3 each independently is hydrogen, deuterium, or a substituted or unsubstituted alkyl, aryl or heteroaryl group; Ar1 and Ar2 each independently is hydrogen, deuterium, or a substituted or unsubstituted alkyl, aryl or heteroaryl group; positions at which

##STR00002##

is substituted with

##STR00003##

are asymmetric; m1, m2, n1 and n2 each independently is 0 or 1; and m1+m2 is 1, and n1+n2 is 1, and an organic light emitting device comprising the same.

Provided is a compound of Chemical Formula 1:

##STR00001## wherein X is O or S; L1 and L2 each independently is a direct bond or a substituted or unsubstituted arylene group; X1 is N or CR1, X2 is N or CR2, X3 is N or CR3, and at least two of X1 to X3 are N; R1 to R3 each independently is hydrogen, deuterium, or a substituted or unsubstituted alkyl, aryl or heteroaryl group; Ar1 and Ar2 each independently is hydrogen, deuterium, or a substituted or unsubstituted alkyl, aryl or heteroaryl group; positions at which

##STR00002##

is substituted with

##STR00003##

are asymmetric; m1, m2, n1 and n2 each independently is 0 or 1; and m1+m2 is 1, and n1+n2 is 1, and an organic light emitting device comprising the same.

The present specification relates to a hetero-cyclic compound and an organic light emitting device comprising the same.

The present specification relates to a hetero-cyclic compound and an organic light emitting device comprising the same.

The present disclosure relates to organic compounds and an organic light emitting display device using the same and more particularly, to an organic light emitting display in which an organic compound represented by the following Chemical Formula 1 is used for a hole transport layer or an electron blocking layer of the organic light emitting element to easily transport holes injected from an anode to a light emitting layer and suppress the leakage of electrons from the light emitting layer. Therefore, it is possible to provide an organic light emitting display device with high luminous efficiency and long lifetime.

##STR00001##

The present disclosure relates to organic compounds and an organic light emitting display device using the same and more particularly, to an organic light emitting display in which an organic compound represented by the following Chemical Formula 1 is used for a hole transport layer or an electron blocking layer of the organic light emitting element to easily transport holes injected from an anode to a light emitting layer and suppress the leakage of electrons from the light emitting layer. Therefore, it is possible to provide an organic light emitting display device with high luminous efficiency and long lifetime.

##STR00001##

The present invention is directed to novel functionalized spirocentric compounds and polymers thereof that produce hyper-rigid cross-linked membranes.

The present invention is directed to novel functionalized spirocentric compounds and polymers thereof that produce hyper-rigid cross-linked membranes.

The present invention is directed to methods of fabricating novel cross-linked membranes and to cross-linked membranes produced by the disclosed methods. Specifically, methods of fabricating cross-linked membranes according to the present invention may comprise direct crosslinking, crosslinking by addition of a small molecule, interfacial crosslinking of free-standing film, and interfacial crosslinking on a solid support.

The present invention is directed to methods of fabricating novel cross-linked membranes and to cross-linked membranes produced by the disclosed methods. Specifically, methods of fabricating cross-linked membranes according to the present invention may comprise direct crosslinking, crosslinking by addition of a small molecule, interfacial crosslinking of free-standing film, and interfacial crosslinking on a solid support.