LG Display Co., Ltd.
Quantum-dot light emitting diode, method of fabricating the quantum-dot light emitting diode and quantum-dot light emitting display device

Abstract:

A quantum-dot (QD) light emitting diode and a quantum-dot light emitting display device are disclosed. The QD light emitting diode includes first and second electrodes facing each other; a QD emitting material layer between the first and second electrodes and including a QD; a first charge auxiliary layer between the first electrode and the QD emitting material layer; and a second charge auxiliary layer between the QD emitting material layer and the second electrode, wherein the QD includes a core, a shell surrounding the core and a ligand contacting a portion of the shell, and wherein the first charge auxiliary layer contacts the ligand, and the second charge auxiliary layer contacts the shell.