| 主权项 |
1. A light emitting device comprising:
a substrate including a first surface and a second surface; a blue light source generating panel disposed on the first surface of the substrate, the blue light source generating panel being used for generating blue light; a photoluminescent layer disposed on the second surface of the second substrate, the photoluminescent layer being used for generating white light when the photoluminescent layer is irradiated by the blue light; the blue light source generating panel comprising:
an anode layer;a cathode layer;an electroluminescent blue light emitting material layer disposed between the anode layer and the cathode layer, the electroluminescent blue light emitting material layer being used for generating the blue light when there is a predetermined voltage difference between the anode layer and the cathode layer; anda power supply being used for applying a voltage to the anode layer and the cathode layer to form the predetermined voltage difference between the anode layer and the cathode layer; the blue light source generating panel further comprising:
a hole injection layer;a hole transport layer;an electronic transport layer; andan electronic injection layer; wherein the hole injection layer is disposed between the anode layer and the hole transport layer, the electroluminescent blue light emitting material layer is disposed between the hole transport layer and the electronic transport layer, the electronic injection layer is disposed between the electronic transport layer and the cathode layer; the photoluminescent layer comprises:
a body material used for allowing the blue light being to travel through the body material;a photoluminescent green light emitting material used for emitting green light when the photoluminescent green light emitting layer is irradiated by the blue light; anda photoluminescent red light emitting material used for emitting red light when the photoluminescent red light emitting material layer is irradiated by the blue light. |
