Lg Display Co., Ltd.

Taeseok Lim

Taeshick Kim

ChangWook Han

Heedong Choi

Taeil Kum

Gwijeong Cho

Mingyu Lee

JiYoung Kim

Seung Kyun Kim

Jaeseung Jang

Younseok Kam

DongHyuk Kim

Jiyoung Kim

An organic light emitting display device can include a first electrode on a substrate; a first emission part on the first electrode, the first emission part including a first emission layer; a second emission part on the first emission part, the second emission part including a second emission layer; a third emission part on the second emission part, the third emission part including a third emission layer; and a second electrode on the third emission part, in which a first thickness between the substrate and the first emission layer, a second thickness between the first emission layer and the second emission layer, a third thickness between the second emission layer and the third emission layer, and a fourth thickness between the third emission layer and the second electrode are different from each other, and the first, second emission, and third emission parts include at least one organic layer.

Organic light emitting display device

An organic light emitting display device reduces a grayscale-based color difference of the organic light emitting display device. The organic light emitting display device includes opposite first and second electrodes on a substrate and a plurality of emission parts between the first and second electrodes. At least one among the plurality of emission parts includes a first emission layer and a second emission layer having different wavelength ranges. A dopant content in the first emission layer is lower than a dopant content in the second emission layer.

Discussed is an organic light emitting display device. The organic light emitting display device according to an embodiment includes a first electrode and a second electrode on a substrate to be opposite to each other and at least three emission parts between the first electrode and the second electrode. A first distance between the substrate and the first emission layer, a second distance between the first emission layer and the second emission layer, a third distance between the second emission layer and the third emission layer, and a fourth distance between the third emission layer and the second electrode are different from each other.

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Seoul, South Korea

Taeseok Lim