Lg Display Co., Ltd.

Ji-Yeon Kang

Kyung-Kook Jang

So-Mang Kim

Min-Jee Kim

Jae-Hyun Park

Sung-Il Woo

Hye-Ock Choi

A quantum dot emitting diode includes first and second electrodes facing each other; a quantum dot emitting material layer between the first and second electrodes; and an electron transporting layer including an electron transporting material and disposed between the quantum dot emitting material layer and the second electrode, wherein the electron transporting material includes a core of metal oxide and a shell of silica.

Quantum dot emitting diode and quantum dot display device including the same

A quantum dot light emitting diode comprises first and second electrodes facing each other; a hole injection layer disposed between the first electrode and the second electrode and having a first HOMO level; a first hole transporting layer disposed between the hole injection layer and the second electrode and having a second HOMO level that is lower than the first HOMO level; a second hole transporting layer disposed between the first hole transporting layer and the second electrode and having a third HOMO level that is lower than the second HOMO level; and a quantum dot light emitting layer disposed between the second hole transporting layer and the second electrode and having a fourth HOMO level that is lower than the third HOMO level, wherein a difference between the first HOMO level and the second HOMO level is greater than a difference between the second HOMO level and the third HOMO level and less than a difference between the third HOMO level and the fourth HOMO level.

Quantum dot light emitting diode and quantum dot light emitting display device including the same

An emitting diode includes a first electrode in a first pixel; a first emitting layer positioned on the first electrode and in the first pixel and including a first amorphous oxide semiconductor material and a first quantum dot, wherein the first amorphous oxide semiconductor material includes an indium atom, a gallium atom and a zinc atom; and a second electrode covering the first emitting layer.

Light emitting diode and electroluminescent display device

A multi-emission quantum dot includes a first core having a first thickness along an axis from a first surface to a second surface of the first core, a first shell enclosing the first core, a second core surrounding the first shell. The second core may has a second thickness along the same axis smaller than the first thickness. The quantum dot also includes a second shell enclosing the second core. The first core may be configured to emit light of a first color, and the second core may be configured to emit light of a second color different from the first color.

Growing community of inventors

Paju-si, South Korea

Ji-Yeon Kang