Sfc Co., Ltd.

Sk Innovation Co., Ltd.

Sk Geo Centric Co., Ltd.

So Young Shim

Seo-Yeon Yoon

Young-Hwan Park

Chang-Hee Lee

Se Jin Yu

Sung-Wan Pyo

Yun-Ah Lee

Soon-Wook Cha

Hyo Seung Park

Sung Jae Na

Si-In Kim

Ji Hae Park

Dong-Won Han

Hyun-Jong Seo

Hyeong Min Kim

The present disclosure relates to a boron compound applicable to an organic light-emitting diode and an organic light-emitting diode comprising same. More specifically, the present disclosure relates to a boron compound represented by any one of Chemical Formulas A to D and an organic light-emitting diode comprising same, wherein Chemical Formulas A to D are as defined in the description.

Boron compound and organic light emitting diode including same

Provided is a method of producing polypropylene. More specifically, provided is a method of efficiently producing high-strength isotactic polypropylene having high crystallinity even with a shorter polymerization time. More specifically, provided is a method of producing polypropylene, including polymerizing propylene in the presence of a catalyst composition including a Ziegler-Natta catalyst, an external electron donor, dialkylaluminum hydride, and trialkylaluminum. The polypropylene has a xylene cold soluble content of 3 wt % or less.

Method for producing polypropylene

Disclosed herein is an organic light-emitting diode capable of operating at a low voltage with high efficiency. It comprises: a first electrode; a second electrode facing the first electrode; and a light-emitting layer interposed between the first electrode and the second electrode, wherein the light-emitting layer comprises at least one of the amine compounds represented by the following Chemical Formula A or B, and the compound represented by the following Chemical Formula C. Chemical Formulas A, B and C are as described in the Specification.

Organic light-emitting diode with high efficiency and low voltage

Disclosed herein is an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; and an electron-blocking layer and a light-emitting layer sequentially interposed between the first electrode and the second electrode, wherein the light-emitting layer comprises at least one of the amine compounds represented by the following Chemical Formula A or B, and the electron-blocking layer comprises the compound represented by the following Chemical Formula C. Chemical Formulas A, B and C are as described in the Specification.

Organic light-emitting diode with high efficiency

The present disclosure relates to an organic light-emitting diode: comprising a first electrode; a second electrode facing the first electrode; and a hole transport layer and a light-emitting layer disposed in that order between the first and the second electrode, wherein the light-emitting layer includes a host and a hole assistant material represented by the following Chemical Formula A, the hole assistant material having a highest occupied molecular orbital (HOMO) energy level lower in absolute value than that of the host.

Organic light-emitting diode having long lifespan property

The present disclosure relates to an organic light-emitting diode which can operate at a low voltage with high efficiency and exhibits the effect of having an alleviated luminance reduction rate in a low dynamic range. More particularly, the organic light-emitting diode comprises: a first electrode; a second electrode facing the first electrode; and a light-emitting layer and a charge balance control layer arranged sequentially between the first and the second electrode, wherein the light-emitting layer includes at least one of amine derivative compounds represented by the following Chemical Formula A and the charge balance control layer includes at least one of anthracene derivative compounds represented by the following Chemical Formula B or C. The structures of Chemical Formulas A, B, and C are as defined in the specification.

Organic light-emitting diode having alleviated luminance reduction in low dynamic range

Disclosed herein is an organic light-emitting diode, comprising: a first electrode, a second electrode opposite the first electrode, and a light-emitting layer and an electron-density-controlling layer in that order between the first electrode and the second electrode, wherein the electron-density-controlling layer includes at least one selected from among compounds represented by Chemical Formulas A to D, and the light-emitting layer includes at least one anthracene compound represented by Chemical Formula H. The electron-density-controlling layer may be disposed between the light-emitting layer and an electron transport layer.

Organic light emitting diode for high efficiency

Disclosed herein is an organic light-emitting diode, comprising: an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; a light-emitting layer intercalated between the first electrode and the second electrode, wherein the light-emitting layer comprises at least one of the amine compounds represented by Chemical Formula A or B, and at least one of the anthracene compounds represented by Chemical Formula C.

Organic light-emitting diode with high efficiency and long lifetime

The present disclosure relates to an organic light-emitting diode exhibiting high luminance efficiency, low-voltage operation, and long lifespan and, more particularly, to an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; and a light-emitting layer and an electron density control layer sequentially arranged between the first electrode and the second electrode wherein the light-emitting layer includes at least one of the amine compounds represented by Chemical Formula A or B and the electron density control layer includes at least one of the compounds represented by Chemical Formulas F to H. The structures of Chemical Formulas A, B, and F to H are as described in the specification.

Disclosed herein is an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; and a light-emitting layer and an electron density control layer in that order between the first electrode and the second electrode, wherein the electron density control layer includes at least one selected from among compounds represented by the following Chemical Formulas A to D, and the light emitting layer includes at least one anthracene compound represented by the following Chemical Formula H. The structures of Chemical Formulas A to D and H are as described in the specification.

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Daejeon, South Korea

So Young Shim