609 results about "Arylene" patented technology

To provide a compound capable of improving the emission efficiency of an organic electroluminescent device.SOLUTION: The invention provides a compound represented by the formula (2), where: Ar2 is a substituted or unsubstituted aryl group having 6-50 ring-forming carbon atoms, or a substituted or unsubstituted heterocyclic group having 5-50 ring-forming atoms; L2 is a single bond, a substituted or unsubstituted arylene group having 6-50 ring-forming carbon atoms, or a divalent substituted or unsubstituted heterocyclic group having 5-50 ring-forming atoms; and D21 is a group represented by the formula (20) in the figure.SELECTED DRAWING: None

A novel compound of Chemical Formula 1:wherein in the Chemical Formula 1: n is an integer of 1 to 6; X is O or S; L1 and L2 are each independently a single bond, substituted or unsubstituted C6-60 arylene, or substituted or unsubstituted C2-60 heteroarylene containing at least one heteroatom selected from the group consisting of O, S, Si, P and B; Ar1 is cyano, substituted or unsubstituted C6-60 aryl, or substituted or unsubstituted C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of O, S, Si, P and B; and Ar2 and Ar3 are each independently substituted or unsubstituted C6-60 aryl or substituted or unsubstituted C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of O, S, Si, P and B; and an organic light emitting device including the same.

The invention discloses an organic compound containing phenanthrene benzofuran, and an organic electroluminescent device, a display device and a lighting device comprising the same. The structural general formula of the organic compound is as shown in formula I; wherein L1 and L2 each independently represent any one of a single bond and an arylene group with a carbon atom number of C6-C12; ar1 represents a substituted or unsubstituted aryl group having a carbon atom number of C6-C60; ar2 represents a group represented by formula II, and ring A represents phenanthryl. By introducing a phenanthrene benzofuran substituent substituted by a specific site into the structure, the molecular high-energy linear state energy level can be adjusted while the molecular polarity is adjusted, and the carrier injection and energy level difference are improved, so that the internal quantum efficiency of the material is improved. And the phenanthrene benzofuran substituent at the specific site and anthryl present a rigid structure, which is beneficial for ordered arrangement of molecules according to a certain orientation, so that the light extraction efficiency is improved, and the device performance can be significantly improved. I; iI