| 简介 |
The present invention refers to, rise in drive voltage and which is capable of suppressing the light-emitting device with high. Furthermore, said electroluminescence element comprising a light emitting device is provided to largely reduce power consumption by provides. Between the positive electrode and the negative EL layer, cathode and EL between the layer number 1, number 2 layer, and number 3 layer, with the cathode and an layer number 1 number 2 layer which is formed between the, cathode and and adjoin the layer number 2, and has a-transporting hole also [...] and material, number 2 layer which is formed between the layer number 3 layer and number 1, number 1 and adjoin the layer number 3 layer and, phthalocyanine which is also, layer number 3 EL layer which is formed between the layer and number 2, number 2 and adjoin the layer EL layer and, yet alkali metal, alkaline earth, rare earth metal, alkali metal compound, alkaline earth metal compound, or a rare earth metal compound. |
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