ORGANIC LIGHT EMITTING MATERIAL AND ORGANIC LIGHT EMITTING DIODE

摘要

Provided is a triphenylene compound derivative having a high glass transition temperature as a hole transport material, and thus imparts excellent thermal stability, lifespan, luminance and light emitting efficiency to an organic light emitting diode. The triphenylene derivative is represented by the following formula I and is used as a hole transport material in an organic light emitting diode (OLED). In the formula 1, E represents a substituted or non-substituted C6-C14 aryl group; and each of R1-R3 represents a substituted or non-substituted C6-C14 aryl group, wherein E and R1 may be linked to each other via a single bond, methylene group, ethylene group or vinyl group.