Patents by Inventor Chi Yuen Raymond Kwong
Chi Yuen Raymond Kwong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240147749Abstract: Provided are an organic electroluminescent material and a device thereof. The organic electroluminescent material is a metal complex having a ligand of a structure of Formula 1 and can be used as an emissive material in an emissive layer of an organic electroluminescent device. The metal complexes having these new ligands can achieve a significant red shift of the maximum emission wavelength of the device, effectively control the emitted color of the device, achieve deeper red luminescence, significantly improve the efficiency of the device, and reduce the voltage of the device. These new metal complexes can provide better device performance. Further provided are an electroluminescent device including the metal complex and a compound composition including the metal complex.Type: ApplicationFiled: September 28, 2023Publication date: May 2, 2024Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Cuifang Zhang, Chi Yuen Raymond Kwong, Chuanjun Xia
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Publication number: 20240130219Abstract: Provided is an organic electroluminescent device and an application thereof. The organic electroluminescent device includes a metal complex having a substituent A capable of reducing a maximum capacitance in the device, and the metal complex can be used as an emissive material in an emissive layer of the electroluminescent device. The device including a metal complex having the substituent A can obtain a decrease in the maximum capacitance of the device, thereby improving the response time and refresh frequency of an OLED display device at a low grayscale. In another aspect, the substituent A can cause a decrease in the maximum capacitance of the device, and the device prepared with the metal complex including the substituent A can still maintain excellent device performance compared with the devices prepared with the metal complexes that do not include the substituent A. Further provided is an electronic assembly including the organic electroluminescent device.Type: ApplicationFiled: September 22, 2023Publication date: April 18, 2024Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Zhen Wang, Hongbo Li, Wei Cai, Zheng Wang, Jing Wang, Ying Hou, Chi Yuen Raymond Kwong, Chuanjun Xia
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Patent number: 11952390Abstract: Provided are a phosphorescent organometallic complex and a use thereof. The metal complex has a ligand with a structure represented by Formula 1 and may be used as a light-emitting material in an electroluminescent device. These novel metal complexes can not only maintain low voltage and improve device efficiency in electroluminescent devices but also greatly reduce the half-peak width of light emitted by these devices so as to greatly improve color saturation of the light emitted by these devices, thereby providing better device performance. Further provided are an electroluminescent device and a compound formulation.Type: GrantFiled: July 24, 2020Date of Patent: April 9, 2024Assignee: Beijing Summer Sprout Technology Co., Ltd.Inventors: Wei Cai, Ming Sang, Chi Yuen Raymond Kwong, Chuanjun Xia, Zhen Wang, Tao Wang, Hongbo Li
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Publication number: 20240109926Abstract: Provided are an organic electroluminescent material and a device comprising the same. The organic electroluminescent material is a metal complex comprising a ligand La having a structure of Formula 1, where the ligand La has a (6-5-6)-multi-membered fused cyclic structural unit and comprises particular substituents R1 and Rn. These new compounds are applied to electroluminescent devices so that very excellent device performance can be obtained, full widths at half maximum of emission spectra can be further reduced while high performance of the devices can be maintained, the luminescence saturation of the devices can be improved and the devices can have high efficiency under a condition of being closer to a BT.2020 commercial luminescence requirement. Further provided are an organic electroluminescent device comprising the metal complex and a composition comprising the metal complex.Type: ApplicationFiled: August 24, 2023Publication date: April 4, 2024Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Zheng Wang, Hongbo Li, Zhen Wang, Wei Cai, Chi Yuen Raymond Kwong, Chuanjun Xia
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Patent number: 11950507Abstract: Disclosed is an organic electroluminescence device. The organic electroluminescence device has an organic layer having a specific combination in which a hole transporting material is doped with a p-type conductive doped material. The organic electroluminescence device can provide better device performance, such as lifetime improvement and voltage reduction.Type: GrantFiled: December 1, 2020Date of Patent: April 2, 2024Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Huiqing Pang, Ru Jia, Zhihao Cui, Xiao Chen, Chuanjun Xia, Chi Yuen Raymond Kwong, Jing Wang
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Publication number: 20240099122Abstract: Provided are an organic electroluminescent device and a use thereof. The organic electroluminescent device comprises a metal complex having particular spectral characteristics (that is, satisfying requirements on D and AR), and the metal complex can better approach the commercially pursued BT.2020 luminescence. Compared with a metal complex that does not satisfy the requirements on D and AR, the metal complex is applied to the organic electroluminescent device to make the obtained organic electroluminescent device have higher device efficiency and more saturated green light emission, can better satisfy the BT.2020 luminescence requirement of the market, and can still maintain high device performance, especially device efficiency, when approaching the BT.2020 luminescence, and the metal complex basically reaches maximum efficiency of the device. The organic electroluminescent device comprising the preceding metal complex has a broad commercial application prospect and can achieve more saturated luminescence.Type: ApplicationFiled: August 24, 2023Publication date: March 21, 2024Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Chi Yuen Raymond Kwong, Wei Cai, Liang Gao, Jing Wang, Zheng Wang, Hongbo Li, Zhen Wang, Chuanjun Xia
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Patent number: 11937499Abstract: Disclosed are an aromatic amine derivative and an organic electroluminescent device including the same. A fluorenyl/silafluorenyl group having an ortho-substituted group is introduced into the structure of the aromatic amine derivative. The aromatic amine derivative may be used as a light-emitting material in a light-emitting layer of an organic electroluminescent device. These novel compounds can provide better device performance.Type: GrantFiled: August 24, 2020Date of Patent: March 19, 2024Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Chunliang Zhao, Zheng Wang, Dan Ye, Shaobo Zhang, Hongbo Li, Xin Bi, Xuechao Tian, Chi Yuen Raymond Kwong, Chuanjun Xia
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Publication number: 20240074221Abstract: Provided is an organic electroluminescent device. The organic electroluminescent device includes an anode, a cathode, and a hole transporting region disposed between the anode and the cathode; the hole transporting region includes a first organic layer; the first organic layer contains a first p-type dopant and a second p-type dopant; the first p-type dopant is different from the second p-type dopant. The electroluminescent device containing at least two different p-type dopants in the first organic layer in the hole transporting region can maintain a high external quantum efficiency and achieve the great reduction in voltages and the significant improvement in lifetimes, thereby improving the comprehensive performance of the device. Further provided is an electronic assembly containing the organic electroluminescent device.Type: ApplicationFiled: August 11, 2023Publication date: February 29, 2024Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Menglan Xie, Huiqing Pang, Chi Yuen Raymond Kwong, Jing Wang
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Publication number: 20240065100Abstract: Provided is an organic electroluminescent device. The organic electroluminescent device includes an anode, a cathode and an organic layer disposed between the anode and the cathode, where the organic layer comprises at least a first compound, a second compound and a third compound. The first compound and the second compound can be used as host materials, and the third compound can be used as a light-emitting material. A particular combination of the first compound, the second compound and the third compound can significantly improve device efficiency, significantly improve a device lifetime and obtain more excellent device performance, which has an unexpected unique advantage. Further provided are an electronic apparatus comprising the electroluminescent device and a composition.Type: ApplicationFiled: July 28, 2023Publication date: February 22, 2024Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Qiang Wang, Le Wang, Ziyan Zhang, Chi Yuen Raymond Kwong, Chuanjun Xia
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Patent number: 11897896Abstract: Organic electroluminescent materials and devices are disclosed. The organic electroluminescent materials are novel benzodithiophene or its analogous structure compounds, which can be used as charge transporting materials, hole injection materials, or the like in an electroluminescent device. These novel compounds can offer excellent performance compared with existing materials, for example, to further improve the voltage, efficiency and/or lifetime of the OLEDs.Type: GrantFiled: August 25, 2022Date of Patent: February 13, 2024Inventors: Zhihao Cui, Chi Yuen Raymond Kwong, Chuanjun Xia
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Publication number: 20240034746Abstract: Provided are an organic electroluminescent material and a device thereof. The organic electroluminescent material is a metal complex having a general formula of M(La)m(Lb)n(Lc)q. The metal complex can meet luminescence requirements on different wavebands, unexpectedly have a greatly narrowed full width at half maximum, and can achieve high-saturation luminescence. Moreover, when used as a emissive material in an electroluminescent device, the metal complex can effectively control the luminescence wavelength of the device, can make the device have the advantages of a low voltage, high efficiency, and an ultra-long lifetime, and can provide better device performance. Further provided are an electroluminescent device and a compound composition.Type: ApplicationFiled: June 29, 2023Publication date: February 1, 2024Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Han Zhang, Cuifang Zhang, Zhihong Dai, Qi Zhang, Chi Yuen Raymond Kwong, Chuanjun Xia
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Publication number: 20240032417Abstract: Provided are an organic electroluminescent material and a device comprising the same. The organic electroluminescent material is a compound having a structure of Formula 1. These new compounds can be applied in organic electroluminescent devices, for example, as host materials, transport materials (e.g., electron transport materials), etc., in organic electroluminescent devices, and can provide better device performance and especially improve the device lifetime. Further provided are an organic electroluminescent device including the compound and a compound composition including the compound.Type: ApplicationFiled: April 19, 2023Publication date: January 25, 2024Inventors: Feng LI, Yang WANG, Jianfei YAO, Gang YANG, Chi Yuen Raymond KWONG, Chuanjun XIA
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Publication number: 20240016057Abstract: Provided are an organic electroluminescent material and a device thereof. The organic electroluminescent material is a compound having a structure of Formula 1. The compound may be used as a host material, an electron transporting material, or a hole blocking material in an organic electroluminescent device and can provide better device performance such as a lower voltage and higher efficiency and can especially improve a device lifetime greatly. Further provided is a compound composition comprising the structure of Formula 1.Type: ApplicationFiled: June 28, 2023Publication date: January 11, 2024Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Feng Li, Yang Wang, Jianfei Yao, Ziyan Zhang, Qiang Wang, Le Wang, Chi Yuen Raymond Kwong, Chuanjun Xia
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Publication number: 20240008300Abstract: Provided is a top-emission organic electroluminescent device, comprising an anode, a cathode and an emissive layer disposed between the two electrodes; the emissive doped material of the emissive layer has a ?max, the device has a maximum external quantum efficiency conversion rate E=EQEA/EQEB, and satisfies when 500 nm??max?600 nm, E?1.625; when 600 nm<?max?700 nm, E?1.850, and the bottom-emission device has an exciton recombination region whose peak position is located in the emissive layer in a region >0% and ?65% of thickness thereof from the side close to the anode. The top-emission device exhibits more excellent device performance. Further provided are a display assembly comprising the top-emission device and use of the top-emission device in an electronic device, an electronic element module, a display device or a lighting device.Type: ApplicationFiled: June 28, 2023Publication date: January 4, 2024Inventors: Jing WANG, Menglan XIE, Huiqing PANG, Chi Yuen Raymond KWONG, Chuanjun XIA
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Publication number: 20240008356Abstract: Provided are an organic electroluminescent material and a device comprising the same. The organic electroluminescent material is a metal complex comprising a metal M and a ligand La having a structure of Formula 1, and the metal complex can be applied to an electroluminescent device as a light-emitting material. The metal complex is applied to the electroluminescent device so that the metal complex, while maintaining a very narrow full width at half maximum, can effectively adjust a light emission wavelength to better meet a requirement of saturated red light emission and can obtain higher device efficiency at a lower voltage, thereby providing better device performance. Further provided are an electroluminescent device comprising the metal complex and a compound composition comprising the metal complex.Type: ApplicationFiled: June 29, 2023Publication date: January 4, 2024Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Nannan Lu, Chi Yuen Raymond Kwong, Chuanjun Xia
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Publication number: 20230422609Abstract: Provided is an organic electroluminescent device. The organic electroluminescent device comprises an anode, a cathode, and an organic layer disposed between the anode and the cathode, wherein the organic layer comprises a first organic layer and a second organic layer; the first organic layer comprises a first organic material and a first p-type dopant; the second organic layer comprises a second organic material and a second p-type dopant; the first organic layer is in contact with the second organic layer, and the second organic layer is above the first organic layer; and the p-type dopant has a structure represented by Formula 1. The organic electroluminescent device comprising the p-type dopant of a particular structure and having a particular device structure can significantly improve the overall performance of the device and especially improve the lifetime of the device. Further provided is an electronic assembly comprising the organic electroluminescent device.Type: ApplicationFiled: June 27, 2023Publication date: December 28, 2023Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Menglan Xie, Jing Wang, Huiqing Pang, Liang Gao, Zhihao Cui, Hualong Ding, Renjie Zheng, Chi Yuen Raymond Kwong, Chuanjun Xia
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Publication number: 20230422538Abstract: Provided is an organic electroluminescent device. The organic electroluminescent device includes an anode, a cathode, and an organic layer disposed between the anode and cathode; the organic layer includes a first organic layer and a second organic layer; the first organic layer includes a first p-type dopant; the second organic layer includes a second p-type dopant; the first p-type dopant is different from the second dopant; the first organic layer is in contact with the second organic layer, and the second organic layer is above the first organic layer. The organic electroluminescent device including specific p-type dopants and having a specific device structure can significantly improve the overall performance of the device, especially the device lifetime or the device efficiency. Further provided is an electronic assembly including the organic electroluminescent device.Type: ApplicationFiled: June 27, 2023Publication date: December 28, 2023Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Menglan Xie, Jing Wang, Huiqing Pang, Liang Gao, Zhihao Cui, Hualong Ding, Renjie Zheng, Chi Yuen Raymond Kwong, Chuanjun Xia
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Publication number: 20230397483Abstract: An organic light-emitting material containing cyano-substituted ligand is disclosed. The organic light-emitting material is a metal complex containing a cyano-substituted ligand, which can be used as a light-emitting material in a light-emitting layer of an organic electroluminescent device. These new complexes can provide better device performance, e.g., narrower full width at half maximum, lower voltage values, and higher quantum efficiency, and the like. An electroluminescent device and a compound formulation containing the metal complex, and a compound capable of being used to prepare the metal complex are also disclosed.Type: ApplicationFiled: August 22, 2023Publication date: December 7, 2023Inventors: Wei Cai, Ming Sang, Chi Yuen Raymond Kwong, Chuanjun Xia, Zhen Wang, Tao Wang, Hongbo Li
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Patent number: 11785839Abstract: An organic light-emitting material containing cyano-substituted ligand is disclosed. The organic light-emitting material is a metal complex containing a cyano-substituted ligand, which can be used as a light-emitting material in a light-emitting layer of an organic electroluminescent device. These new complexes can provide better device performance, e.g., narrower full width at half maximum, lower voltage values, and higher quantum efficiency, and the like. An electroluminescent device and a compound formulation containing the metal complex, and a compound capable of being used to prepare the metal complex are also disclosed.Type: GrantFiled: January 23, 2020Date of Patent: October 10, 2023Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Wei Cai, Ming Sang, Chi Yuen Raymond Kwong, Chuanjun Xia, Zhen Wang, Tao Wang, Hongbo Li
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Publication number: 20230320121Abstract: Provided is an organic electroluminescent device. The organic electroluminescent device comprises at least a first organic layer and a second organic layer, wherein the first organic layer has a relatively high electrical conductivity and comprises a first compound with deep LUMO and a second compound with deep HOMO and the second organic layer comprises a third compound having a high hole mobility. The compound combination can reduce an effect of an interface and provide better device performance, such as a reduced voltage and improved device efficiency. Further provided are a display apparatus comprising the organic electroluminescent device and an electronic equipment comprising the display apparatus.Type: ApplicationFiled: March 28, 2023Publication date: October 5, 2023Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Zhihao Cui, Renjie Zheng, Juntao Hu, Liang Gao, Chi Yuen Raymond Kwong, Chuanjun Xia