ORGANIC LIGHT EMITTING APPARATUS, DISPLAY APPARATUS, ELECTRONIC APPARATUS, IN-VEHICLE DISPLAY, AND VEHICLE

The invention discloses an organic light emitting apparatus, a display apparatus, an electronic apparatus, a vehicle-mounted display, and a vehicle. The organic light-emitting device includes: an anode and a cathode arranged facing each other; a light emitting layer disposed between the anode and the cathode; and a hole transport layer disposed between the anode and the light emitting layer, contacting the light emitting layer. The light emitting layer includes a first host material and a second host material. The difference between the HOMO energy level of the hole transport layer and the HOMO energy level of the first host material is smaller than the difference between the HOMO energy level of the hole transport layer and the HOMO energy level of the second host material. The difference between the HOMO level 13H of the hole transport layer and the HOMO level 14aH of the first host material is 0.37 eV or less. 公开了一种有机发光设备、显示设备、电子装置、车载显示器及车辆。所述有机发光设备，包括：面向彼此布置的阳极和阴极；布置在阳极与阴极之间的发光层；以及布置在阳极与发光层之间的空穴传输层，接触发光层。