LG Chem, Ltd. patent applications published on November 30th, 2023

Summary of the patent applications from LG Chem, Ltd. on November 30th, 2023

LG Chem, Ltd. has recently filed several patents related to various technologies. These patents cover areas such as organic light emitting display devices, binders for secondary batteries, positive electrode active materials for lithium secondary batteries, optical laminates for flexible devices, optical devices with liquid crystal elements, rotary kilns for sintering powder raw materials, coordination compounds for light absorbers, monomer compositions for synthesizing recycled plastic, and thermoplastic resin compositions.

Summary: - LG Chem, Ltd. has filed patents for various technologies including organic light emitting display devices, binders for secondary batteries, positive electrode active materials for lithium secondary batteries, optical laminates for flexible devices, optical devices with liquid crystal elements, rotary kilns for sintering powder raw materials, coordination compounds for light absorbers, monomer compositions for synthesizing recycled plastic, and thermoplastic resin compositions. - Notable applications include improving the performance and efficiency of organic light emitting display devices, enhancing the energy storage and release capabilities of secondary batteries, providing optical laminates that can withstand repetitive bending or folding, and developing thermoplastic resin compositions with excellent mechanical strength, flame retardancy, and weather resistance.

Bullet Points:

• Patents filed by LG Chem, Ltd. cover technologies such as organic light emitting display devices, binders for secondary batteries, positive electrode active materials for lithium secondary batteries, optical laminates for flexible devices, optical devices with liquid crystal elements, rotary kilns for sintering powder raw materials, coordination compounds for light absorbers, monomer compositions for synthesizing recycled plastic, and thermoplastic resin compositions.
• LG Chem, Ltd. aims to improve the performance and efficiency of organic light emitting display devices.
• The company focuses on enhancing the energy storage and release capabilities of secondary batteries by developing binders for anodes.
• LG Chem, Ltd. has developed positive electrode active materials for lithium secondary batteries with specific crystalline structures to optimize their performance.
• The company has also created optical laminates that can withstand repetitive bending or folding without damaging the film, suitable for use in flexible display devices.
• LG Chem, Ltd. has designed optical devices with multiple layers and a liquid crystal element to provide high-quality displays.
• The company has developed a rotary kiln for sintering powder raw materials, incorporating both external and internal heating devices for efficient heating.
• LG Chem, Ltd. has invented coordination compounds for light absorbers to efficiently absorb light.
• The company has developed monomer compositions for synthesizing recycled plastic from polycarbonate-based resins, aiming to contribute to a circular economy.
• LG Chem, Ltd. has created thermoplastic resin compositions with excellent mechanical strength, flame retardancy, and weather resistance for producing molded articles.

Patent applications for LG Chem, Ltd. on November 30th, 2023

Antibacterial And Deodorizing Composition, And Preparation Method Therefor (18030935)

Main Inventor

Yoon Hyung Hur

Brief explanation

The abstract describes an antibacterial deodorant composition and its preparation method. The composition includes two compounds, with the first compound cross-linked to a portion of the second compound. The composition has specific limits for the content of guaiacol, 3-methylbutanal, and diacetyl when evaluated for deodorization. 

• Antibacterial deodorant composition with specific content limits for certain compounds
• Composition includes two compounds, with the first compound cross-linked to a portion of the second compound
• Content of guaiacol limited to 300 ng or less
• Content of 3-methylbutanal limited to 250 ng or less
• Content of diacetyl limited to 30 ng or less
• Composition evaluated for deodorization using Method A
• Provides a method for preparing the antibacterial deodorant composition

Abstract

An antibacterial deodorant composition including: a first compound of Chemical Formula 1; and a second compound different from the first compound, in which the first compound is cross-linked to at least a portion of the second compound, a content of guaiacol is 300 ng or less, a content of 3-methylbutanal is 250 ng or less, and a content of diacetyl is 30 ng or less when the antibacterial deodorant composition is evaluated for deodorization by Method A, and a preparation method thereof.

PREPARATION METHOD OF SUPERABSORBENT POLYMER (18031703)

Main Inventor

Heechang WOO

Brief explanation

The patent application describes a method for preparing a superabsorbent polymer that has reduced water-soluble components and fine particle generation, while still maintaining excellent absorption properties.

• The method aims to improve the quality of superabsorbent polymers by reducing water-soluble components and minimizing the generation of fine particles.
• The invention focuses on enhancing the absorption properties of the superabsorbent polymer.
• The method involves specific steps and techniques to achieve the desired reduction in water-soluble components and fine particle generation.
• The resulting superabsorbent polymer exhibits improved performance in absorbing and retaining large amounts of liquid.
• The innovation is expected to have applications in various industries, such as hygiene products, agriculture, and waste management.

Abstract

Provided is a method for preparing a superabsorbent polymer. More particularly, provided is a method for preparing a superabsorbent polymer exhibiting remarkably reduced water-soluble components and generation of fine particles and exhibiting excellent absorption properties.

SUPPORTED CATALYST FOR PRODUCING CARBON NANOTUBES (18021765)

Main Inventor

Sung Jin Kim

Brief explanation

The patent application is for a supported catalyst used in the production of carbon nanotubes. The catalyst includes a carrier with a particle size between 1.5 μm and 20 μm, and an active ingredient supported within the carrier. The active ingredient prevents particle aggregation and enhances the catalyst's activity, leading to improved production yield.

• The patent application is for a supported catalyst used in producing carbon nanotubes.
• The catalyst includes a carrier with a particle size between 1.5 μm and 20 μm.
• An active ingredient is supported within the carrier.
• The active ingredient prevents particle aggregation.
• The active ingredient also enhances the catalyst's activity.
• The improved catalyst leads to higher production yield.

Abstract

The present invention relates to a supported catalyst for producing carbon nanotubes which includes a carrier having a number average particle size (D) of 1.5 μm to 20 μm, and an active ingredient supported in the carrier, wherein the active ingredient which prevents the aggregation between particles and supports the particles may act as an active ingredient, so that it is possible to provide a supported catalyst which has excellent activity, and thus, which may improve the production yield.

MICRONIZING APPARATUS FOR HYDROGEL OF SUPER ABSORBENT POLYMER (18031871)

Main Inventor

Ui Seok CHUNG

Brief explanation

The patent application describes a micronizing apparatus for grinding hydrogel.

• The apparatus includes a body with a transfer space for the hydrogel and a discharge space for the ground hydrogel.
• A rotation shaft with at least one screw is used to transfer the hydrogel along the body.
• A rotor with rotor blades and rotor recesses is installed on the rotation shaft to grind the hydrogel.
• A stator surrounds the rotor with an air gap and is fixed to the body.
• The apparatus is designed to micronize hydrogel efficiently and effectively.

Abstract

The micronizing apparatus includes: a body having a transfer space where hydrogel is transferred, and a discharge space where ground hydrogel is discharged; a rotation shaft disposed in the transfer space, wherein at least one screw is formed on an outer perimeter surface of the first rotation shaft, to transfer the hydrogel along a longitudinal direction of the body; a rotor installed on the rotation shaft so as to rotate together with the rotation shaft, wherein a plurality of rotor blades and a plurality of rotor recesses are alternately formed along a circumferential direction on an outer perimeter part of the rotor; and a stator surrounding the rotor with an air gap between the rotor and the stator, which is a predetermined distance between an outside diameter of the rotor and an inside diameter of the stator, and is fixed to the body

MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, RECYCLED PLASTIC, AND MOLDED PRODUCT USING THE SAME (18032141)

Main Inventor

Jungmoon BAE

Brief explanation

- The patent application is about a monomer composition used to synthesize recycled plastic.

- The composition contains a high-purity aromatic diol compound that is recovered through recycling by chemically decomposing a polycarbonate-based resin. - The patent application also includes a method for preparing this monomer composition. - The invention also covers the use of this monomer composition in producing recycled plastic and molded products.

Abstract

The present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.

Method For Vaporizing Lactic Acid, Apparatus For Vaporizing Lactic Acid, And Method For Preparing Acrylic Acid From Lactic Acid (18029809)

Main Inventor

Yong O Im

Brief explanation

The present disclosure describes a method and apparatus for vaporizing lactic acid, which aims to reduce lactic acid oligomers and increase single-molecule lactic acid content. 

• The method involves heating and pressurizing a lactic acid aqueous solution.
• A liquid phase containing the heated and pressurized lactic acid solution is sprayed in a 1-1 stream.
• The lactic acid in the 1-1 stream is vaporized through spraying.
• A gas phase containing single-molecule lactic acid is obtained in a 1-3 stream.

Abstract

The present disclosure relates to a method and an apparatus for vaporizing lactic acid. According to the method and apparatus, the content of lactic acid oligomers can be reduced within a short period of time, and the content of single-molecule lactic acid can be increased. The method includes heating and pressurizing a lactic acid aqueous solution, spraying a 1-1 stream of a liquid phase containing the heated and pressurized lactic acid aqueous solution, vaporizing the lactic acid contained in the 1-1 stream through spraying; and obtaining a 1-3 stream of a gas phase containing single-molecule lactic acid.

CRYSTALLINE FORM III OF MELANOCORTIN RECEPTOR AGONIST COMPOUND AND PREPARATION METHOD THEREFOR (18251129)

Main Inventor

Jin Ok HAM

Brief explanation

The patent application is for a new crystalline form (Form III) of a compound represented by formula 1. 

• The invention also includes a method for preparing the crystalline form III and a pharmaceutical composition containing it.
• The crystalline form III can be identified by its XRD patterns, DSC profiles, and/or TGA profiles.
• This new form of the compound may have unique properties or advantages compared to other forms, making it potentially useful in pharmaceutical applications.

Abstract

The present invention relates to a crystalline form III represented by formula 1, a method for preparing the same, and a pharmaceutical composition comprising the same. The crystalline form III represented by formula 1 of the present invention may be characterized by XRD patterns, DSC profiles, and/or TGA profiles.

METHOD FOR PREPARING VINYL CHLORIDE-BASED POLYMER AND VINYL CHLORIDE-BASED POLYMER PREPARED THEREBY (18030953)

Main Inventor

Jae Hyun PARK

Brief explanation

- The patent application describes a method for preparing a vinyl chloride-based polymer with improved melting rate, mechanical properties, and low harmfulness.

- The method involves pre-mixing and injecting a mixed dispersant consisting of high hydration polyvinyl alcohol and a metal carbonate before polymerization. - The vinyl chloride-based monomer is then polymerized using this pre-mixed dispersant. - The resulting vinyl chloride-based polymer exhibits improved melting rate, mechanical properties, and reduced harmfulness compared to conventional methods. - The use of the mixed dispersant comprising polyvinyl alcohol and metal carbonate enhances the overall performance of the polymer.

Abstract

The present invention relates to a method for preparing a vinyl chloride-based polymer showing improved melting rate and mechanical properties and low harmfulness, by pre-mixing and injecting a mixed dispersant comprising polyvinyl alcohol of high hydration and a metal carbonate before performing polymerization, and then, polymerizing a vinyl chloride-based monomer, and a vinyl chloride-based polymer prepared through the method.

THERMOPLASTIC RESIN COMPOSITION (18034270)

Main Inventor

Jeong Su CHOI

Brief explanation

The patent application is about a thermoplastic resin composition that includes a graft polymer and a non-grafted polymer. 

• The graft polymer is made up of a rubber polymer with a gel content of 0 to 10 wt %, and it contains an aromatic vinyl-based monomer unit and a diene-based monomer unit.
• The graft polymer also includes a shell made of a (meth)acrylate-based monomer unit and an aromatic vinyl-based monomer unit, which are grafted to the rubber polymer.
• The non-grafted polymer also contains a (meth)acrylate-based monomer unit and an aromatic vinyl-based monomer unit.
• The refractive indices of the graft polymer and the non-grafted polymer are very similar, differing by 0.0100 or less.

Abstract

The present disclosure relates to a thermoplastic resin composition which includes: a graft polymer including a rubber polymer having a gel content of 0 to 10 wt % and including an aromatic vinyl-based monomer unit and a diene-based monomer unit; and a shell including a (meth)acrylate-based monomer unit and an aromatic vinyl-based monomer unit which are grafted to the rubber polymer; and a non-grafted polymer including a (meth)acrylate-based monomer unit and an aromatic vinyl-based monomer unit, wherein the refractive indices of the graft polymer and the non-grafted polymer differ by 0.0100 or less.

MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, AND RECYCLED PLASTIC, MOLDED PRODUCT, PLASTICIZER COMPOSITION USING THE SAME (18029826)

Main Inventor

Tae Seung PARK

Brief explanation

The patent application is about a monomer composition used to synthesize recycled plastic. The composition helps to secure terephthalic acid with low moisture content and increased particle size. The application also includes a method for preparing the composition and its use in recycled plastic, molded products, and plasticizer compositions.

• The patent application is about a monomer composition for synthesizing recycled plastic.
• The composition helps to secure terephthalic acid with low moisture content and increased particle size.
• The composition is used to recover from a (co)polymer synthesized from monomers containing terephthalic acid.
• The application includes a method for preparing the monomer composition.
• The monomer composition can be used in the production of recycled plastic.
• The composition can also be used in the production of molded products and plasticizer compositions.

Abstract

The present disclosure relates to a monomer composition for synthesizing recycled plastic that can secure terephthalic acid with low moisture content and increased particle size while recovering from a (co)polymer synthesized from monomers containing terephthalic acid, a method for preparing the same, and a recycled plastic, molded product, and plasticizer composition using the same.

THERMOPLASTIC RESIN AND MOLDED ARTICLE MANUFACTURED USING THE SAME (18032496)

Main Inventor

Hyun Seok LEE

Brief explanation

- The patent application describes a thermoplastic resin composition that includes a combination of different materials in specific ratios.

- The composition includes a base resin made of a polyalkylene terephthalate and a polycarbonate, which are both types of thermoplastic materials. - An impact modifier with a core-shell structure is added to improve the toughness and impact resistance of the composition. - A halogenated epoxy-based flame retardant is included to enhance the fire resistance properties of the resin. - A compatibilizer is added to improve the compatibility between the different components of the composition. - A transesterification inhibitor is included to prevent unwanted chemical reactions during the processing of the resin. - The resulting thermoplastic resin composition has a high melt flow index, indicating good processability during molding. - It also has a high WOM value, which is a measure of its resistance to heat and flame according to UL 746C (f1 Class) standards. - The composition is suitable for producing molded articles with excellent mechanical strength, flame retardancy, hot water resistance, and weather resistance.

Abstract

The present disclosure provides a thermoplastic resin composition including a base resin (A) including a polyalkylene terephthalate and a polycarbonate, an impact modifier (B) having a core-shell structure, a halogenated epoxy-based flame retardant (C), a compatibilizer (D), and a transesterification inhibitor (E) in a predetermined content ratio, wherein the thermoplastic resin composition has a melt flow index (250° C., 5 kg) of 7.0 g/10 min or more and has a WOM value of 70% or more as measured according to UL 746C (f1 Class), and a molded article including the thermoplastic resin composition. The thermoplastic resin composition of the present disclosure may have excellent mechanical strength, molding processability, flame retardancy, hot water resistance, and weather resistance.

MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, RECYCLED PLASTIC, AND MOLDED PRODUCT USING THE SAME (18031860)

Main Inventor

Ki Jae LEE

Brief explanation

The patent application is about a monomer composition used to synthesize recycled plastic from a polycarbonate-based resin. The composition contains a high-purity aromatic diol compound recovered through chemical decomposition of the resin. The application also includes a method for preparing the composition and using it to produce recycled plastic and molded products.

• The patent application focuses on a monomer composition for synthesizing recycled plastic.
• The composition contains a high-purity aromatic diol compound recovered through chemical decomposition of a polycarbonate-based resin.
• The application includes a method for preparing the monomer composition.
• The monomer composition can be used to produce recycled plastic and molded products.
• The patent application also mentions the inclusion of a by-product with a high added value recovered through recycling of the polycarbonate-based resin.
• The by-product is included in the monomer composition for synthesizing recycled plastic.
• The method for preparing the monomer composition is also applicable to the inclusion of the by-product.
• The recycled plastic and molded products produced using the monomer composition have potential applications in various industries.

Abstract

The present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same. Also, the present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a by-product with a high added value recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.

MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, RECYCLED PLASTIC, AND MOLDED PRODUCT USING THE SAME (18031863)

Main Inventor

Jeongbin LEE

Brief explanation

The patent application is about a monomer composition used to synthesize recycled plastic. The composition includes a high-purity aromatic diol compound that is recovered through the chemical decomposition of a polycarbonate-based resin. The application also describes a method for preparing this monomer composition, as well as the resulting recycled plastic and molded products.

• The patent application is related to a monomer composition for making recycled plastic.
• The composition includes a high-purity aromatic diol compound obtained from the chemical decomposition of a polycarbonate-based resin.
• The application also describes a method for preparing this monomer composition.
• The resulting recycled plastic can be used to create molded products.

Abstract

The present disclosure relates to a monomer composition for synthesizing recycled plastic which contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic, and molded product using the same.

COORDINATION COMPOUND AND LIGHT ABSORBER COMPRISING SAME (18031597)

Main Inventor

Seonkyoung Son

Brief explanation

The abstract of the patent application describes a coordination compound and a light absorber that incorporates this compound. 

• The patent application is for a coordination compound and a light absorber that utilizes this compound.
• The coordination compound is a key component of the light absorber.
• The light absorber is designed to efficiently absorb light.
• The patent application provides a simplified explanation of the invention.
• The abstract does not provide specific details about the coordination compound or the light absorber's design.
• The patent application aims to protect the innovation described in the abstract.

Abstract

A coordination compound, and a light absorber including the same.

Rotary Kiln (18031912)

Main Inventor

Jong Seol Yoon

Brief explanation

The patent application describes a rotary kiln that is used for sintering powder raw materials. 

• The rotary kiln consists of a cylindrical rotation tube that rotates horizontally to mix the input powder raw material.
• The powder raw material is heated using both an external heating device and an internal heating device.
• The external heating device heats the outside of the rotation tube, while the internal heating device stirs and heats the powder raw material simultaneously.
• The internal heating device includes a microwave generation part that generates microwaves.
• The microwaves generated are guided into the rotation tube using a guide part.
• A stirring heat generation part, coupled to the inner circumferential surface of the rotation tube, stirs the powder raw material and generates heat by absorbing the microwaves.
• This heat generated by the stirring heat generation part is used to heat the powder raw material in the rotation tube.

Abstract

A rotary kiln comprises: a sintering device provided with a cylindrical rotation tube for mixing an input powder raw material while rotating in a horizontal direction; an external heating device for heating the powder raw material input into the rotation tube by heating the outside of the rotation tube; and an internal heating device for stirring and heating the powder raw material input into the rotation tube simultaneously. The internal heating device includes a microwave generation part for generating microwaves; a guide part for guiding the microwaves generated from the microwave generation part into the rotation tube; and a stirring heat generation part coupled to an inner circumferential surface of the rotation tube for stirring the powder raw material input into the rotation tube and simultaneously generating heat when absorbing the microwaves so as to heat the powder raw material.

Optical Device (18031773)

Main Inventor

Jung Woon Kim

Brief explanation

The patent application describes an optical device that includes multiple layers and a liquid crystal element. 

• The device consists of a first outer substrate, a second outer substrate, and a liquid crystal element positioned between them.
• There are also two intermediate layers, one between the first outer substrate and the liquid crystal element, and another between the second outer substrate and the liquid crystal element.
• The combined thickness of these intermediate layers is at least 800 μm.
• The liquid crystal element itself includes a first base layer, a second base layer, and a liquid crystal layer between them.
• A pressure-sensitive adhesive layer is present between the first base layer and the liquid crystal layer.
• A spacer is used to maintain a gap between the first and second base layers.

Abstract

An optical device is disclosed herein. In some embodiments, an optical device includes a first outer substrate, a second outer substrate, a liquid crystal element positioned between the first outer substrate and the second outer substrate, a first intermediate layer between the first outer substrate and the liquid crystal element, and a second intermediate layer between the second outer substrate and the liquid crystal element, wherein a sum of total thicknesses of the first and second intermediate layers is 800 μm or more, and wherein the liquid crystal element includes a first base layer, a second base layer, a liquid crystal layer between the first base layer and the second base layer, a pressure-sensitive adhesive layer between the first base layer and the liquid crystal layer, and a spacer to maintain a gap between the first and second base layers.

COVER WINDOW FOR FLEXIBLE DISPLAY DEVICE AND FLEXIBLE DISPLAY DEVICE (18249780)

Main Inventor

Gieun PARK

Brief explanation

The present disclosure is about an optical laminate that is designed to be used in bendable, flexible, rollable, or foldable mobile devices and display devices. It aims to minimize the risk of damaging the film during repetitive bending or folding operations. 

• The patent application is for an optical laminate that can be easily applied to bendable, flexible, rollable, or foldable mobile devices and display devices.
• The laminate is designed to withstand repetitive bending or folding without damaging the film.
• The invention aims to provide a cover window for flexible display devices that includes the optical laminate.
• The optical laminate is also suitable for use in flexible display devices.

Abstract

The present disclosure relates to an optical laminate which hardly has a risk of damaging the film even in repetitive bending or folding operations, and thus can be easily applied to bendable, flexible, rollable or foldable mobile devices, display devices, and the like, to a cover window for flexible display device including the same, and to a flexible display device including the same.

Positive Electrode Active Material, and Positive Electrode and Lithium Secondary Battery Which Include the Same (18027654)

Main Inventor

Won Sig Jung

Brief explanation

The patent application describes a positive electrode active material for lithium secondary batteries.

• The material has a specific crystalline structure with a major-axis orientation degree of 0.5 to 1 and a c-axis orientation degree of less than 0.5.
• The material contains a certain ratio of crystalline C, ranging from 25% to 70%.
• The patent also covers a positive electrode and a lithium secondary battery that incorporate this active material.

Abstract

A positive electrode active material has crystalline C having a crystalline major-axis orientation degree DoA of 0.5 to 1 and a crystalline c-axis orientation degree of less than 0.5, wherein among total crystallines in a cross section of a positive electrode active material particle, a ratio of the crystalline C is in a range of 25% to 70%. A positive electrode and a lithium secondary battery which include the same are also provided.

Binder For Anode Of Secondary Battery, Anode Of Secondary Battery And Secondary Battery (18032698)

Main Inventor

Doyun Kim

Brief explanation

The patent application is about a binder for an anode of a secondary battery, an anode for a secondary battery, and a secondary battery itself. The binder is made up of a binder particle that consists of a core particle and a shell. 

• The binder particle contains a copolymer core particle that has a repeating unit derived from an isoprene-based monomer.
• The binder particle also has a copolymer shell located on the surface of the core particle.
• The copolymer shell contains a repeating unit derived from a butadiene-based monomer.
• This binder is used in the anode of a secondary battery.
• The anode is an important component of the battery that stores and releases energy during the battery's operation.
• The binder helps to hold the active materials of the anode together and improve its performance.
• The secondary battery, which incorporates this binder in its anode, can have enhanced energy storage and release capabilities.

Abstract

The present disclosure relates to a binder for an anode of a secondary battery, an anode for a secondary battery and a secondary battery, wherein the binder comprises a binder particle comprises a copolymer core particle containing a repeating unit derived from an isoprene-based monomer; and a copolymer shell located on the surface of the core particle and containing a repeating unit derived from a butadiene-based monomer.

Organic Light Emitting Display Device (18232798)

Main Inventor

Jungkeun KIM

Brief explanation

- The patent application is for an organic light emitting display device.

- The device includes at least one light emitting part positioned between an anode and a cathode. - The light emitting part consists of at least one organic layer and a light emitting layer. - The at least one organic layer contains a compound represented by Chemical Formula 1 or 2. - The invention aims to improve the performance and efficiency of organic light emitting display devices.

Abstract

An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.