| abstract |
In order to achieve the above object, the hole transport material according to an embodiment of the present invention may be represented by the following formula (1). [Formula 1] In Formula 1, R 1 and R 2 are each independently selected from a substituted or unsubstituted aryl group having 5 to 30 carbon atoms, a substituted or unsubstituted saturated or unsaturated ring compound having 3 to 30 carbon atoms, At least one of the R 3 and R 4 may be a substituent including a vinyl group having a crosslinking property. |