The invention discloses an organic light emission diode device and application thereof. The device comprises a hole transport layer, a light emission layer and an electron transport layer. The material of the light emission layer of the device comprises a compound comprising a 1, 8-diazafluoran-9-one group, and the structural formula of the compound is shown in the general formula (1). According to the 1, 8-diazafluoran-9-one material, due to a small triplet and singlet energy difference, energy transfer between host and guest materials can be realized easily, energy that is originally lost in a heat form is easily available, the radiative transition efficiency of the light emission layer is enhanced, and the high efficiency of the device can be acquired more easily. Further, when a 1, 8-diazafluoran-9-one compound material is directly used as a doped material, or the 1, 8-diazafluoran-9-one compound serves as a host material, and a fluorescent material is selected as the doped material, light emission radiation of the doped material is acquired more easily, and a long service life of the material can be acquired more easily.