| 摘要 |
The present invention provides an organic electroluminescence device comprising a positive electrode; a negative electrode, and one or more organic material layers interposed between the positive pole and the negative pole. At least one of the organic layers comprises a first host, a second host, and a third host which are different materials. Properties such as driving voltage, light-emitting efficiency, and lifespan are improved, so the provided organic electroluminescence device exhibits high efficiency. |
