Compound, display panel and display apparatus
The present disclosure relates to the technical field of OLED, and provides a compound having TADF property. In an embodiment the compound has a structure according to Formula (1), in which X 1 -X 5 are each independently selected from a carbon atom and a nitrogen atom, and at least one of X 1 -X 5 is a nitrogen atom; R 11 -R 20 are each selected from the group consisting of a hydrogen atom, a fluorine atom, alkyl, alkoxy, cyano, trifluoromethyl, an electron-accepting group, and an electron-donating group; at least one of R 11 -R 15 is an electron-donating group or an electron-accepting group, and at least one of R 16 -R 20 is an electron-donating group or an electron-accepting group; when each of R 11 -R 15 is an electron-accepting group, at least one of R 16 -R 20 is an electron-donating group, and each of R 11 -R 15 is an electron-donating group, at least one of R 16 -R 20 is an electron-accepting group.
1. A compound, having a structure represented by Formula (1):
R 11 -R 12 and R 14 -R 20 are each selected from the group consisting of a hydrogen atom, a fluorine atom, alkyl, alkoxy, cyano, trifluoromethyl, an electron-accepting group, and an electron-donating group;
the electron-donating group is a substituted or unsubstituted C12-C40 carbazolyl; and
the electron-accepting group is a cyano-containing group;
wherein among R 11 -R 12 and R 14 -R 15 , at least one is the electron-donating group and at least one is the electron-accepting group; and among R 16 -R 20 , at least one is the electron-donating group and at least one is the electron-accepting group; and
at least one of R 11 and R 15 is the electron-donating group or the electron-accepting group, and at least one of R 16 and R 20 is the electron-donating group or the electron-accepting group.
2. The compound according to claim 1 , wherein the compound is selected from the following compounds:
3. A display panel, comprising an organic light-emitting device,
the organic light-emitting device comprising an anode; a cathode; and a light-emitting layer disposed between the anode and the cathode,
wherein a light-emitting material of the light-emitting layer comprises one or more of the compounds according to claim 1 .
4. A display apparatus, comprising the display panel according to claim 3 .