| 主权项 |
1. A light emitting layer-forming solid material, comprising:
at least one host material, and at least one light-emitting material, wherein the light emitting layer-forming solid material has a pellet shape and is not in a powder form, wherein the light emitting layer-forming solid material is capable of forming a white light emitting layer having a single layer structure under evaporation conditions, wherein a difference between a sublimation temperature of the host material and a sublimation temperature of the light-emitting material is within 20° C. as an absolute value, and wherein the light emitting layer-forming solid material further comprises at least one thermally conductive material having no sublimation property, and thermal conductivity of the thermally conductive material is higher than that of the at least one host material and at least one light-emitting material contained in the light emitting layer-forming solid material, wherein said thermally conductive material having no sublimation property is SiC. |
