Lg Display Co., Ltd.

Ki-Wook Song

Min Ro Yun

Yong-Hwan Kim

Jung-Soo Park

Tae-Woo Jeon

Organic light emitting diode display devices are provided. In at least one embodiment, an organic light emitting diode display device includes a first electrode; a first stack on the first electrode and the first stack is configured to emit a blue colored light; a first charge generating layer on the first stack; a second stack on the first charge generating layer and the second stack is configured to emit a red colored light and a yellow-green colored light; and a second electrode on the second stack. The second stack includes: a red-yellow-green emitting material layer including a yellow-green host, a yellow-green dopant and a red dopant; and a yellow-green emitting material layer including the yellow-green host and the yellow-green dopant.

Growing community of inventors

Paju-si, South Korea

Ki-Wook Song