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Rohm And Haas Electronic Materials Korea Ltd patents


Recent patent applications related to Rohm And Haas Electronic Materials Korea Ltd. Rohm And Haas Electronic Materials Korea Ltd is listed as an Agent/Assignee. Note: Rohm And Haas Electronic Materials Korea Ltd may have other listings under different names/spellings. We're not affiliated with Rohm And Haas Electronic Materials Korea Ltd, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "R" | Rohm And Haas Electronic Materials Korea Ltd-related inventors


 new patent  Organic electroluminescent compound and an organic electroluminescent device comprising the same

The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present invention, it is possible to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and noticeably improved driving lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

Polymeric charge transfer layer and organic electronic device containing the same

The present invention relates to a polymeric charge transfer layer comprising a polymer and a p-dopant. The polymer comprises as polymerized units, monomer a, monomer b, and monomer c crosslinking agent. ... Rohm And Haas Electronic Materials Korea Ltd

Organic electroluminescent compounds and organic electroluminescent device comprising the same

The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure is effective in preparing an organic electroluminescent device having low driving voltage and good current and power efficiencies.. ... Rohm And Haas Electronic Materials Korea Ltd

Organic electroluminescent compounds and organic electroluminescent device comprising the same

The present disclosure relates to organic electroluminescent compounds and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present disclosure may be comprised in a light-emitting layer or an electron buffer layer, and is effective to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and significantly improved operative lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

Monomers, polymers and photoresist compositions

Monomers and polymers are provided that comprise a carbon alicyclic group or heteroalicyclic group that comprises 1) one or more acid-labile ring substituents and 2) one or more ether or thioether ring substituents. Photoresists that comprise such polymers also are provided.. ... Rohm And Haas Electronic Materials Korea Ltd

Luminescent material for delayed fluorescence and organic electroluminescent device comprising the same

The present invention relates to a luminescent material for delayed fluorescence and an organic electroluminescent device comprising the same. By using the luminescent material for delayed fluorescence according to the present invention, an organic electroluminescent device having long lifespan, low driving voltage, excellent color purity, and significantly improved luminous efficiency such as current efficiency is provided.. ... Rohm And Haas Electronic Materials Korea Ltd

A plurality of host materials and organic electroluminescent device comprising the same

The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer disposed between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant, wherein the host comprises a plurality of host compounds, wherein at least a first host compound of the plurality of host compounds has an amine-carbazole structure substituted with naphthyl-phenyl and aryl (formula 1), and a second host compound has a di-c-benzocarbazole structure comprising nitrogen-containing heteroaryl (formula 2). By using the plurality of host compounds of the present disclosure, the organic electroluminescent device may have long lifespan while maintaining high efficiency at high luminance compared to the conventional organic electroluminescent device using a sole host compound.. ... Rohm And Haas Electronic Materials Korea Ltd

Organic electroluminescent compounds and organic electroluminescent device comprising the same

The present invention relates to an organic electroluminescent compounds and organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention is effective to produce an organic electroluminescent device having low driving voltage, excellent luminous and power efficiencies, and significantly improved driving lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

Colored photosensitive resin composition and light shielding spacer prepared therefrom

The present invention relates to a colored photosensitive resin composition and to a light shielding spacer prepared therefrom. The colored photosensitive resin composition comprises an oxime ester fluorene-based compound as a photopolymerization initiator in a small amount, which is capable of forming a cured film that is excellent in terms of such properties as sensitivity, elastic recovery rate, resolution, chemical resistance, exudation resistance, voltage holding ratio, and the like. ... Rohm And Haas Electronic Materials Korea Ltd

Colored photosensitive resin composition and light shielding spacer prepared therefrom

. . The present invention relates to a colored photosensitive resin composition capable of forming a cured film that does not generate uneven wrinkles on its surface at the time of its formation, and a light shielding spacer produced therefrom and used for a liquid crystal display, an organic el display, or the like.. . ... Rohm And Haas Electronic Materials Korea Ltd

Cyclic urea compounds for electronic devices

A composition is provided, which comprises at least one cyclic urea compound of formula 1, as described herein. The composition can be used in electronic devices, such as organic electroluminescent devices.. ... Rohm And Haas Electronic Materials Korea Ltd

Phosphorous host material and organic electroluminescent device comprising the same

The present invention relates to phosphorous host materials and an organic electroluminescent device comprising the same. By using the phosphorous host material of the present invention, an organic electroluminescent device having significantly improved operational lifespan can be produced.. ... Rohm And Haas Electronic Materials Korea Ltd

Coating compositions for use with an overcoated photoresist

Organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that comprise 1) one or more resins and 2) one or more substituted isocyanurate compounds that are distinct from the 1) one or more resins.. . ... Rohm And Haas Electronic Materials Korea Ltd

Photosensitive resin composition and cured film prepared therefrom

The present invention relates to a photosensitive resin composition and to a cured film formed therefrom, wherein the photosensitive resin composition can improve the sensitivity by using an alcoholic solvent, along with a siloxane polymer and a quinone diazide compound conventionally used, which enhances the solubility in a developer through an interaction between the alcohol and the diazonaphthoquinone (dnq) group in the quinone diazide compound, as well as can form a cure film having excellent film retention rate even after post-bake.. . ... Rohm And Haas Electronic Materials Korea Ltd

03/29/18 / #20180088073

Gas sensor and method of manufacture thereof

Disclosed herein is a gas sensor comprising a substrate; a first polymeric layer having a first surface and a second surface disposed on the substrate; where the first surface contacts the substrate and where the second surface is opposed to the first surface and has a higher surface area than the first surface; where the first polymeric layer comprises repeat units that have a deprotected hydrogen donor; and a second polymeric layer disposed on the first polymeric layer; where the second polymeric layer is derived from a repeat unit that comprises a hydrogen acceptor.. . ... Rohm And Haas Electronic Materials Korea Ltd

02/01/18 / #20180033975

A plurality of host materials and organic electroluminescent device comprising the same

. . The present disclosure relates to a plurality of host materials and organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host materials, the organic electroluminescent device of the present disclosure can show long lifespan while maintaining high luminous efficiency.. ... Rohm And Haas Electronic Materials Korea Ltd

01/25/18 / #20180022991

Organic electroluminescent compounds and organic electroluminescent device comprising the same

The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention can be comprised in a light-emitting layer or an electron buffer layer, and is effective to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and significantly improved operational lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

01/04/18 / #20180006236

Organic compounds and electronic device comprising organic layer comprising organic compounds

Organic compounds suitable for organic layers of electronic devices that show reduced driving voltage, increased luminous efficiency and/or increased power efficiency.. . ... Rohm And Haas Electronic Materials Korea Ltd

01/04/18 / #20180002284

Organic compounds and electronic device comprising an organic layer comprising the organic compounds

Organic compounds suitable for organic layers of electronic devices that show improved luminescent properties.. . ... Rohm And Haas Electronic Materials Korea Ltd

12/07/17 / #20170352814

Organic electroluminescent compound and organic electroluminescent device comprising the same

The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present disclosure, it is possible to produce an organic electroluminescent device which has a low driving voltage, excellent current and power efficiencies, and improved operation lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

11/30/17 / #20170342057

A plurality of host materials and an organic electroluminescence device comprising the same

The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides high efficiency and long lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

11/23/17 / #20170336709

Coating compositions for use with an overcoated photoresist

Organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that comprise that comprise a thermal acid generator that comprises: i) a pyridinium component having one or more ring substituents selected from optionally substituted alkyl and optionally substituted heteroalkyl; and ii) a sulfonic acid component.. . ... Rohm And Haas Electronic Materials Korea Ltd

11/23/17 / #20170335181

A novel combination of a host compound and a dopant compound and an organic electroluminescent device comprising the same

Disclosed herein are combinations of a dopant compound and a host compound. The dopant being an iridium complex and the host being a carbazole derivative. ... Rohm And Haas Electronic Materials Korea Ltd

11/23/17 / #20170334849

Organic compound and electronic device comprising an organic layer comprising the organic compound

An organic compound suitable for organic layers of electronic devices that show improved luminescent properties.. . ... Rohm And Haas Electronic Materials Korea Ltd

10/26/17 / #20170309841

A plurality of host materials and an organic electroluminescence device comprising the same

The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides high efficiency and a long lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

10/26/17 / #20170305854

Novel organic electroluminescent compounds and an organic electroluminescent device comprising the same

The present disclosure relates to novel organic electroluminescent compounds and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present disclosure, the organic electroluminescent device may improve driving lifespan while maintaining equal or greater efficiency compared to conventional devices.. ... Rohm And Haas Electronic Materials Korea Ltd

10/12/17 / #20170294590

Organic electroluminescent compound, and organic electroluminescent material and organic electroluminescent device comprising the same

The present disclosure relates to an organic electroluminescent compound, and an organic electroluminescent material and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure has excellent color purity, solubility, and thermal stability. ... Rohm And Haas Electronic Materials Korea Ltd

10/05/17 / #20170283651

Coating compositions for use with an overcoated photoresist

Organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that comprise that a blend of two or more resins, where one resin has epoxy groups either pendant or fused to the polymer backbone. Preferred coating compositions include: 1) a first resin that comprises one or more epoxy reactive groups; and 2) a crosslinker resin that is distinct from the first resin and comprises epoxy groups.. ... Rohm And Haas Electronic Materials Korea Ltd

09/28/17 / #20170279056

A plurality of host materials and an organic electroluminescence device comprising the same

The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides excellent lifespan characteristics while maintaining high luminous efficiency.. ... Rohm And Haas Electronic Materials Korea Ltd

09/07/17 / #20170256722

A hole transport material and an organic electroluminescent device comprising the same

The present invention relates to a hole transport material and an organic electroluminescent device comprising the same. By using the hole transport material according to the present invention, an organic electroluminescent device having significantly improved operational lifespan while maintaining low driving voltage and high current and power efficiencies can be produced.. ... Rohm And Haas Electronic Materials Korea Ltd

08/03/17 / #20170222159

Electron buffering material and organic electroluminescent device

The present invention relates to an electron buffering material, and an organic electroluminescent device comprising a first electrode; a second electrode facing the first electrode; a light-emitting layer between the first electrode and the second electrode; and an electron transport zone and an electron buffering layer between the light-emitting layer and the second electrode. The electron buffering material of the present invention can produce an organic electroluminescent device having low driving voltage, excellent luminous efficiency, and long lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

08/03/17 / #20170217992

Organic electroluminescent compounds and organic electroluminescent devices comprising the same

The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present invention, it is possible to produce an organic electroluminescent device having low driving voltage and excellent luminous efficiency such as current efficiency and power efficiency, emitting color of high purity, and having improved lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

07/27/17 / #20170213968

Organic electroluminescent device

The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.. ... Rohm And Haas Electronic Materials Korea Ltd

07/20/17 / #20170207398

Electron transport material and organic electroluminescent device comprising the same

The present invention relates to an electron transport material comprising a compound of a certain structure, and an organic electroluminescent device comprising the same. The organic electroluminescent device comprising the electron transport material of the present invention has a low driving voltage, high luminous efficiency and good color purity, and thus effectively shows blue emission.. ... Rohm And Haas Electronic Materials Korea Ltd

07/20/17 / #20170207396

Organic electroluminescent device

The present invention relates to an organic electroluminescent device. The organic electroluminescent device of the present invention shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.. ... Rohm And Haas Electronic Materials Korea Ltd

07/13/17 / #20170200904

An organic electroluminescent compound and an organic electroluminescent device comprising the same

The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present invention, it is possible to produce an organic electroluminescent device having improved lifespan characteristics.. ... Rohm And Haas Electronic Materials Korea Ltd

06/22/17 / #20170179406

An organic electroluminescent compound and an organic electroluminescent device comprising the same

The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention can produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and remarkably improved driving lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

06/15/17 / #20170170408

Organic electroluminescent device

The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.. ... Rohm And Haas Electronic Materials Korea Ltd

06/08/17 / #20170162801

Electron buffering material and organic electroluminescent device

The present disclosure relates to an electron buffering material, and an organic electroluminescent device comprising a first electrode, a second electrode facing the first electrode, a light-emitting layer between the first electrode and the second electrode, and an electron transport zone and an electron buffering layer between the light-emitting layer and the second electrode. The organic electroluminescent device comprising the electron buffering material of the present disclosure has a low driving voltage and excellent luminous efficiency.. ... Rohm And Haas Electronic Materials Korea Ltd

06/08/17 / #20170162797

Organic electroluminescent compound and organic electroluminescent device comprising the same

The present disclosure relates to an organic electroluminescent compound of formula 1 (variables y1, y2 and r1 to r4 defined herein), and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present disclosure can be used for the manufacture of an organic electroluminescent device showing improvement in luminous efficiency, especially in current efficiency.. ... Rohm And Haas Electronic Materials Korea Ltd

06/01/17 / #20170153547

Coating compositions for use with an overcoated photoresist

In a preferred aspect, organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that comprise 1) one or more glycidyl groups; and 2) one or more aromatic groups that each comprises two or more substituents that comprise hydroxy, thiol and/or amine moieties. Catechol-containing polymers and methods for producing same also are provided.. ... Rohm And Haas Electronic Materials Korea Ltd

05/18/17 / #20170141326

Organic electroluminescent compound and organic electroluminescent device comprising the same

The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present disclosure, it is possible to produce an organic electroluminescent device which has a low driving voltage, excellent current and power efficiencies, and improved operation lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

05/04/17 / #20170125699

Multi-component host material and an organic electroluminescence device comprising the same

The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.. ... Rohm And Haas Electronic Materials Korea Ltd

05/04/17 / #20170125692

Novel organic electroluminescent compounds and organic electroluminescent device comprising the same

The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present invention has high luminous efficiency, and thus can be used as a host in a light-emitting layer; and an organic electroluminescent device comprising the organic electroluminescent compounds of the present invention has long operating lifespan, provides improved current efficiency and power efficiency, and gives colors having high purity.. ... Rohm And Haas Electronic Materials Korea Ltd

05/04/17 / #20170123319

Coating compositions for use with an overcoated photoresist

Organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that in a first aspect comprise a crosslinker component that comprises a structure of the following formula (i):. . ... Rohm And Haas Electronic Materials Korea Ltd

04/27/17 / #20170117488

Multi-component host material and organic electroluminescent device comprising the same

The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant; the host consists of multi-component host compounds; at least a first host compound of the multi-component host compounds is a specific bicarbazole derivative containing an aryl group, and a second host compound is a specific carbazole derivative including a nitrogen-containing heteroaryl group. According to the present invention, the organic electroluminescent device using the multi-component host compounds has a high efficiency and long lifespan compared with the conventional device using one component host compound.. ... Rohm And Haas Electronic Materials Korea Ltd

04/27/17 / #20170117485

Electron buffering material and organic electroluminescent device comprising the same

The present invention relates to an electron buffering material and an organic electroluminescent device comprising the same in an electron buffer layer. It is possible to provide an organic electroluminescent device having excellent luminous efficiency and lifespan characteristics by using the electron buffering material according to the present invention.. ... Rohm And Haas Electronic Materials Korea Ltd

04/06/17 / #20170098784

Multi-component host material and an organic electroluminescence device comprising the same

The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.. ... Rohm And Haas Electronic Materials Korea Ltd

03/30/17 / #20170090287

Overcoat compositions and methods for photolithography

Topcoat compositions are provided that are suitably applied above a photoresist composition. Preferred topcoat compositions comprise a first polymer comprising first units comprising a reactive nitrogen-containing moiety spaced from the polymer backbone, wherein the nitrogen-containing moiety produces a basic cleavage product during lithographic processing of the photoresist composition.. ... Rohm And Haas Electronic Materials Korea Ltd

03/30/17 / #20170090283

Photoresist compositions and methods

New photoresists are provided that are useful in a variety of applications, including negative-tone development processes. Preferred resists comprise a first polymer comprising first units comprising a reactive nitrogen-containing moiety spaced from the polymer backbone, wherein the nitrogen-containing moiety produces a basic cleavage product during lithographic processing of the photoresist composition.. ... Rohm And Haas Electronic Materials Korea Ltd

03/16/17 / #20170077423

Multi-component host material and organic electroluminescent device comprising the same

The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a dopant; the host consists of multi-component host compounds; at least a first host compound of the multi-component host compounds is a specific bicarbazole derivative containing an aryl group, and a second host compound is a specific carbazole derivative including a nitrogen-containing heteroaryl group. According to the present invention, an organic electroluminescent device using the multi-component host compounds has a high efficiency and long lifespan compared to the conventional organic electroluminescent device using one component of a host.. ... Rohm And Haas Electronic Materials Korea Ltd

03/16/17 / #20170077415

An electron transport material and an organic electroluminescence device comprising the same

The present invention relates to an organic electroluminescent device comprising an electron transport material which comprises a compound having a specific structure. The organic electroluminescent device comprising the electron transport material of the present invention provides low driving voltage, high luminous efficiency, excellent lifespan characteristics, and excellent color coordination to efficiently emit blue light.. ... Rohm And Haas Electronic Materials Korea Ltd

03/16/17 / #20170073453

Aromatic resins for underlayers

Polymeric reaction products of certain aromatic alcohols with certain aromatic aldehydes are useful as underlayers in semiconductor manufacturing processes.. . ... Rohm And Haas Electronic Materials Korea Ltd

03/02/17 / #20170062730

Multi-component host material and organic electroluminescent device comprising the same

The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant; the host consists of multi-component host compounds; at least a first host compound of the multi-component host compounds is a bicarbazole derivative containing pyridine, and a second host compound is a carbazole derivative including a nitrogen-containing heteroaryl group. According to the present invention, an organic electroluminescent device using the multi-component host compounds has high efficiency and long lifespan compared to a conventional device using one component of a host.. ... Rohm And Haas Electronic Materials Korea Ltd

03/02/17 / #20170059991

Coating composition for use with an overcoated photoresist

Organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that comprise that comprise a crosslinker component that comprises a structure of the following formula (i):. . ... Rohm And Haas Electronic Materials Korea Ltd

02/16/17 / #20170047528

Organic electroluminescent compound and organic electroluminescent device comprising the same

The present disclosure relates to an organic electroluminescent compound of formula 1 (variables r1-r10 defined herein), and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present disclosure, it is possible to produce an organic electroluminescent device which can be operated at a lowered driving voltage, shows excellence in luminous efficiency such as current efficiency and power efficiency, and has high color purity and improved lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

02/16/17 / #20170047527

Multi-component host material and organic electroluminescent device comprising the same

The present disclosure relates to an organic electroluminescent device comprising an anode, a cathode, and an organic layer between the anode and the cathode, wherein the organic layer comprises one or more light-emitting layers; and at least one light-emitting layer comprises one or more dopant compounds and two or more host compounds. The organic electroluminescent device of the present disclosure has low driving voltage, high color purity, high luminous efficiency, and a long lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd

02/16/17 / #20170047524

Electron transport material and organic electroluminescent device comprising the same

The present invention relates to an electron transport material and an organic electroluminescent device comprising the material in an electron transport layer. The compounds according to the present invention as an organic electron transport material have faster electron transport property compared to a conventional electron transport material. ... Rohm And Haas Electronic Materials Korea Ltd

02/09/17 / #20170038686

Anthraquinone compound used for color filter of lcd

An anthraquinone compound which is suitable for forming a color filter used for a liquid crystal display device, a composition containing a resin and the anthraquinone compound, an article having a polymer layer formed from the composition and a color filter containing the compound are developed.. . ... Rohm And Haas Electronic Materials Korea Ltd

01/05/17 / #20170005276

Electron buffering material and organic electroluminescent device

The present disclosure relates to an electron buffering material, and an organic electroluminescent device comprising a first electrode, a second electrode facing the first electrode, a light-emitting layer between the first electrode and the second electrode, and an electron transport zone and an electron buffering layer between the light-emitting layer and the second electrode. The organic electroluminescent device comprising the electron buffering material of the present disclosure has a low driving voltage, excellent luminous efficiency, and long lifespan.. ... Rohm And Haas Electronic Materials Korea Ltd








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