Lg Display Co., Ltd.

Korea University Research and Business Foundation

Chun-Ki Kim

Joong-Hwan Yang

Bo-Min Seo

Dae-Wi Yoon

In-Bum Song

Gee-Sung Chae

Suk-Young Bae

Jun-Yun Kim

Kyung-Jin Yoon

Eun-Jung Park

Su-Na Choi

Mi-Sang Yoo

Jeong-Eun Baek

Wook Song

Dong-Hoon Choi

Min-Ju Cho

Mallesham Godumala

Se-Ung Kim

Yu-Jin Bae

Jung-Hyun Yoon

Hyung-Won Cho

Kyu-Soon Shin

Jeong-A Seo

Hyung-Jin Lee

Dong-Hyun Lee

Young-Sam Jin

The present disclosure provides a compound of following formula and an organic light emitting device and an organic light emitting display device including the compound. The compound of the present disclosure serves as a host or a dopant in an emitting material layer.

Compound, and organic light emitting device and organic light emitting display device including the same

Disclosed are a white organic light emitting element, which may uniformize the color coordinates of white regardless of a change in current density by changing the configuration of different kinds of light emitting layers contacting each other, and a display device using the same.

White organic light emitting element and display device using the same

An organic light emitting diode comprises an emitting material layer implementing a delayed fluorescence and another emitting material layer disposed adjacently to the emitting material layer and implementing fluorescence or phosphorescence and an organic light emitting device including the diode. As exciton generated in the plural emitting material layer drops to a ground state through the luminous materials each of which has a controlled energy level, it is possible to implement excellent luminous efficiency derived from a delayed fluorescent material and improved color purity derived from a fluorescent or phosphorescent material having narrow FWHM.

Organic light emitting diode and organic light emitting device having the same

The present disclosure relates to an organic light emitting diode including an emitting material layer that has a host and two different delayed fluorescent materials whose energy levels are controlled and an organic light emitting device including the diode. Exciton energy is transferred from a first delayed fluorescent dopant to a second delayed fluorescent dopant, which has singlet and triplet energy levels lower than singlet and triplet energy levels of the first delayed fluorescent dopant and a narrow FWHM (full-width at half maximum) compared to the first delayed fluorescent dopant so that efficient light emission can be realized.

Discussed is an organic compound of Formula 1 and an organic light emitting diode and an OLED device including the organic compound. In the organic compound, Ar1 is a heteroaryl group comprising a nitrogen atom, and Ar2 is a Cto Caryl group, and R is a Cto Calkyl group. The organic compound may be included in an emitting material layer of the organic light emitting diode as a host such that an emitting efficiency and a lifespan of the organic light emitting diode and the OLED device are improved. 

Organic compound, and organic light emitting diode and organic light emitting display device including the same

The present invention provides an organic compound for an organic light emitting diode. An example of the organic compound is represented by: 

Discussed is an organic electroluminescent device including a first charge carrying layer being disposed adjacent to a first electrode; and a second charge carrying layer disposed adjacent to a second electrode, wherein the first charge carrying layer includes an emitting part, a hole injection part and a hole transporting part between the hole injection part and the emitting part, wherein at least one of the hole injection part, the hole transporting part and the emitting part includes a host material having an organic compound of Formula: wherein R is substituted or non-substituted C1 to C12 alkyl, and A and B are symmetrically or asymmetrically positioned in 2-position or 7-position of the fluorene core, and wherein each of A and B is independently selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group.

Organic compound and organic light emitting diode using the same

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Goyang-si, South Korea

Chun-Ki Kim