QUANTUM DOT LIGHT EMITTING DEVICE HAVING QUANTUM DOT MULTILAYER

摘要

PURPOSE: A quantum dot light emitting device is provided to reduce the difference of an energy band level between a quantum dot light emitting layer and a hole transport layer by including a quantum dot light emitting and containing layer. CONSTITUTION: A first and a second electrode(14,22) are formed on a substrate(12). A first and a second charge transport layer(15,20) are formed between the first electrode and the second electrode. A quantum dot light emitting layer(18) is formed between the first charge transport layer and the second charge transport layer. The energy band level of at least one quantum dot containing layer(17) is different from the energy band level of the quantum dot light emitting layer. At least one among the first and the second charge transport layer is a hole transport layer. The other one among the first and the second charge transport layer is an electron transport layer.