Lg Display Co., Ltd.

Min-Gyu Lee

Tae-Shick Kim

Ki-Woog Song

Youn-Seok Kam

Sun-Man Kim

Kyoung-Sub Kim

Ji-Young Kim

Tae-Seok Lim

Jung-Shik Lim

A display device having a light-emitting device is provided. The display device can include a buffer insulating layer disposed on a path of light emitted from the light-emitting device. The buffer insulating layer can have a stacked structure of a first buffer insulating layer having the refractive index which decreases in a direction away from the light-emitting device, and a second buffer insulating layer having the refractive index which increases in a direction away from the light-emitting device. Thus, in the display device, the unintended constructive and destructive interference of the light emitted from the light-emitting device can be prevented. Therefore, in the display device, the luminous efficacy can be increased, and the variation of color coordinates can be prevented.

Display apparatus having a light-emitting device

Disclosed are a tandem white organic light emitting diode with long lifespan and low driving voltage, and a display device including the same. The white organic light emitting diode includes a first light emitting part, a second light emitting part and a third light emitting part disposed between a first electrode and a second electrode. The first and third light emitting parts include a blue light emitting layer and the second light emitting part includes a red light emitting layer and a yellow-green light emitting layer. At least one layer of the red light emitting layer and the yellow-green light emitting layer includes a hole transport host based on a compound shown below: wherein each of R, R, and Rare independently selected from hydrogen, heavy hydrogen, a C5-C7 aromatic cyclic and C1-C6 heterocyclic group.

White organic light emitting diode and display including the same

A backlight unit includes a lamp, a bottom frame disposed under the lamp, the bottom frame having a first hole corresponding to the lamp, a light guide holder inserted into the first hole, and a light emitting diode disposed under the light guide holder.

Backlight unit and liquid crystal display module using the same

Growing community of inventors

Daegu, South Korea

Min-Gyu Lee