Patents Assigned to P&H TECH Co., Ltd
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Publication number: 20260190613Abstract: Disclosed are an organic compound employed as an organic layer material, such as an electron-blocking layer in an organic light-emitting device; and an organic light-emitting device comprising same. When the compound according to the present invention is employed for an electron-blocking layer in a device, it is possible to implement an organic light-emitting device having significantly improved low voltage driving characteristics and device characteristics such as long lifespan and luminous efficiency, and thus the present invention can be industrially useful for various lighting devices and display devices.Type: ApplicationFiled: July 27, 2023Publication date: July 2, 2026Applicant: P&H TECH Co., LtdInventors: Seung Jae LEE, Gwan-hee PARK, In-Ho LEE
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Publication number: 20260167859Abstract: The present invention relates to an organic compound and an organic light-emitting device comprising same. The organic compound is used in a light efficiency improving layer included in an organic light-emitting device to increase the light efficiency of the device so as to be able to implement excellent device characteristics such as low voltage driving, excellent color purity, and improved luminescence efficiency of the device. Same can be industrially and usefully used for various lighting and display devices.Type: ApplicationFiled: September 27, 2021Publication date: June 18, 2026Applicant: P&H TECH Co., LtdInventors: Seo-Yong HYUN, Gwan-hee PARK
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Publication number: 20260150499Abstract: Disclosed are a compound represented by the following [Chemical Formula I], which can be employed in a light efficiency improving layer provided in an organic light-emitting device to implement a highly efficient and long-lifetime organic light-emitting device with improved luminous efficiency, color purity, life characteristics, and the like as well as low-voltage driving characteristics, and an organic light-emitting device including the same.Type: ApplicationFiled: November 21, 2025Publication date: May 28, 2026Applicant: P&H TECH Co., LtdInventors: Gwan-hee PARK, Yeonju CHO, Yukyung LEE
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Publication number: 20250280727Abstract: The present invention relates to an organic compound used in organic layers, such as electron-blocking layers and hole transport layers, within an organic light-emitting diode, and an organic light-emitting diode that adopts the organic compound and display significantly improved device characteristics such as low-voltage operation, longevity, and luminous efficiency. The organic compound according to the present invention exhibits excellent hole injection and transport performance, high capability to confine triplet excitons, superior electron-blocking performance, and excellent stability in thin-film states. The organic light-emitting diode employing the compound in its organic layers, such as electron-blocking and hole transport layers, demonstrate notably superior characteristics in terms of low-voltage operation, longevity, and luminous efficiency compared to conventional devices and thus can be advantageously used in various illumination devices and display devices.Type: ApplicationFiled: May 3, 2023Publication date: September 4, 2025Applicant: P&H TECH Co., LtdInventors: Jong-Kwan BIN, Seung Jae LEE
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Publication number: 20250234703Abstract: The present invention relates to an organic compound that can enhance the light efficiency of light extracted to the outside of an organic light-emitting element due to having a low refractive index, and thus can be effectively utilized as a material for a light efficiency improving layer provided in the organic light-emitting element. The compound according to the present invention can be employed in the light efficiency improving layer to achieve a high-efficiency, long-lifespan organic light-emitting element having improved light-emitting efficiency, color purity, and lifespan characteristics, as well as low-voltage driving characteristics, and thus can be effectively used in various lighting and display elements.Type: ApplicationFiled: March 21, 2023Publication date: July 17, 2025Applicant: P&H TECH Co., LtdInventors: Seo-Yong HYUN, Gwan-hee PARK, Do Yeol YOON
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Publication number: 20250154085Abstract: The present invention relates to an organic compound employed as a light efficiency improving layer (capping layer) material included in an organic light-emitting device. If employed in the light efficiency improving layer included in the organic light-emitting device, the compound according to the present invention can implement low-voltage driving and improved luminescent properties such as excellent luminous efficacy, color purity, and the like, and thus can be effectively used for various lighting devices and display devices.Type: ApplicationFiled: February 16, 2023Publication date: May 15, 2025Applicant: P&H TECH Co., LtdInventors: In-Ho LEE, Seo-Yong HYUN
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Publication number: 20250017101Abstract: The present invention relates to an organic compound and an organic light-emitting device comprising same. The organic compound is used in a light efficiency improving layer included in an organic light-emitting device to increase the light efficiency of the device so as to be able to implement excellent device characteristics such as low voltage driving, excellent color purity, and improved luminescence efficiency of the device. Same can be industrially and usefully used for various lighting and display devices.Type: ApplicationFiled: September 14, 2022Publication date: January 9, 2025Applicant: P&H TECH Co., LtdInventors: Seo-Yong HYUN, Gwan-hee PARK
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Publication number: 20250002469Abstract: The present invention relates to: an organic compound which is used for an organic layer, such as a hole transport layer or an electron blocking layer, in an organic light-emitting device; and an organic light-emitting device comprising same. When the organic compound according to the present invention is used for an organic layer in a device, improved luminous characteristics of the device can be implemented in terms of driving at low voltage, excellent luminous efficiency, and the like, and thus the present invention can be effectively used for industrial applications of various display and lighting devices.Type: ApplicationFiled: July 19, 2022Publication date: January 2, 2025Applicant: P&H TECH Co., LtdInventors: Seo-Yong HYUN, Seung Jae LEE, Gwan-hee PARK
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Publication number: 20240397813Abstract: The present invention relates to an organic compound and an organic light emitting device comprising same, the organic compound being employed in a light efficiency improving layer, which is provided in an organic light emitting device, so as to increase the light efficiency of the device, and thus enables low-voltage driving of the device and excellent device characteristics such as excellent color purity and improved luminous efficiency to be implemented. Therefore, the present invention can be industrially and effectively used in various lighting and display devices and the like.Type: ApplicationFiled: September 27, 2021Publication date: November 28, 2024Applicant: P&H TECH Co., LtdInventors: Seo-Yong HYUN, Gwan-hee PARK, Jun-Yeong CHANG
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Publication number: 20240260453Abstract: An organic compound according to the present invention has, as the skeleton thereof, a structure that has a phenyl group incorporated at the —N terminus at position 9 in carbazole wherein an aryl(heteroaryl)amine group is incorporated via a linker at position 4 in carbazole, and the amine group includes a terphenyl group, dibenzofuran, or dibenzothiophene. Due to these structural characteristics, the compound according to the present invention may be employed in organic layers, such as an electron block layer, in organic light-emitting devices to realize an organic light-emitting device having light emission characteristics such as low driving voltage, excellent luminous efficiency, and the like of the device, and thus may be advantageously used industrially in a variety of display devices.Type: ApplicationFiled: May 11, 2022Publication date: August 1, 2024Applicant: P&H TECH Co., LtdInventors: Seo-Yong HYUN, Seok-Keun YOON, Gwan-hee PARK
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Publication number: 20240228470Abstract: The present invention provides an organic compound that is employed in an organic layer, such as an electron transport layer, in an organic light-emitting device to realize the characteristics thereof, such as significantly improved excellence in luminosity efficiency, alongside low voltage driving characteristics of the organic light-emitting device. The organic compound and the organic light-emitting device comprising same, according to the present invention, can be industrially utilized in various lighting, display devices and the like.Type: ApplicationFiled: September 27, 2021Publication date: July 11, 2024Applicant: P&H TECH Co., LtdInventors: Seok-Keun YOON, Seo-Yong HYUN, In-Ho LEE
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Publication number: 20240124433Abstract: The present invention relates to an organic compound and an organic light-emitting device comprising same, the organic compound being employed in an organic layer, such as an electron-transporting layer, in an organic light-emitting device and in a luminous efficiency-improving layer (a capping layer) provided in an organic light-emitting device to achieve light-emitting characteristics such as superior luminous efficiency and low-voltage driving of a device. The present invention can realize improved device characteristics such as superior luminous efficiency and low-voltage driving and thus can be industrially usefully employed in various lighting and display devices.Type: ApplicationFiled: September 27, 2021Publication date: April 18, 2024Applicant: P&H TECH Co., LtdInventors: Seo-Yong HYUN, Gwan-hee PARK
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Organic Light Emitting Diode Employing Multi-Refractive Capping Layer For Improving Light Efficiency
Publication number: 20220093899Abstract: The present invention relates to an organic light emitting diode which complexly includes capping layers having different refractive indexes to improve light extraction efficiency, reduce a driving voltage, and improve current efficiency.Type: ApplicationFiled: September 9, 2021Publication date: March 24, 2022Applicant: P&H TECH Co., LtdInventors: Seo-Yong HYUN, Seok-Keun YOON, Do Yeol YOON, Eunji KO -
Publication number: 20220085336Abstract: The present invention relates to an organic light emitting diode which includes a capping layer with a low refractive index to improve light extraction efficiency, thereby reducing a driving voltage, improving power efficiency, and improving current efficiency.Type: ApplicationFiled: September 9, 2021Publication date: March 17, 2022Applicant: P&H TECH Co., LtdInventors: Seo-Yong HYUN, Seok-Keun YOON, Do Yeol YOON, Eunji KO