Patents by Inventor Jeong-hee Lee
Jeong-hee Lee 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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Patent number: 12338380Abstract: A quantum dot including: a core including a first semiconductor nanocrystal material including zinc, tellurium, and selenium; and a semiconductor nanocrystal shell disposed on the core, the semiconductor nanocrystal shell including zinc, selenium, and sulfur, wherein the quantum dot does not include cadmium, and in the quantum dot, a mole ratio of the sulfur with respect to the selenium is less than or equal to about 2.4:1. A production method of the quantum dot and an electronic device including the same are also disclosed.Type: GrantFiled: April 9, 2024Date of Patent: June 24, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yuho Won, Sung Woo Kim, Jin A Kim, Jeong Hee Lee, Tae Hyung Kim, Eun Joo Jang
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Patent number: 12325399Abstract: A vehicle control system includes a setting unit to sense a plurality of forward vehicles positioned ahead of a subject vehicle in a driving direction, to classify each of the forward vehicles as a far-away vehicle or a near-by vehicle, and to set each of the far-away vehicles as an interest vehicle, a receiving unit to receive braking information of each of the interest vehicles from the respective interest vehicles, and a control unit to control braking of the subject vehicle based on the braking information of each of the interest vehicles received by the receiving unit.Type: GrantFiled: April 6, 2022Date of Patent: June 10, 2025Assignee: Hyundai Mobis Co., Ltd.Inventor: Jeong Hee Lee
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Patent number: 12227687Abstract: A quantum dot comprising a core comprising a first semiconductor nanocrystal comprising zinc, selenium, and optionally tellurium; and a shell disposed on the core and comprising a second semiconductor nanocrystal having a different composition from the first semiconductor nanocrystal, and comprising zinc and at least one of sulfur and selenium, wherein the shell comprises at least three branches extending from the core, wherein at least one of the branches has a length of greater than or equal to about 2 nm, the quantum dot emits blue light comprising a maximum emission peak at a wavelength of less than or equal to about 470 nm, a full width at half maximum (FWHM) of the maximum emission peak is less than about 35 nm, and the quantum dot does not comprise cadmium.Type: GrantFiled: April 18, 2023Date of Patent: February 18, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung Woo Kim, Jin A Kim, Tae Hyung Kim, Jeong Hee Lee, Eun Joo Jang
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Patent number: 12114518Abstract: An electroluminescent device, a method of manufacturing the same, and a display device including the same. The electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode, the emission layer including light emitting particles; an electron transport layer disposed between the first electrode and the emission layer; and a hole transport layer disposed between the second electrode and the emission layer, wherein the electron transport layer includes inorganic oxide particles and a metal-organic compound, the metal-organic compound or a thermal decomposition product of the metal-organic compound being soluble a non-polar solvent.Type: GrantFiled: October 27, 2021Date of Patent: October 8, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung Woo Kim, Chan Su Kim, Tae Ho Kim, Kun Su Park, Eun Joo Jang, Jin A Kim, Tae Hyung Kim, Jeong Hee Lee
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Patent number: 12110019Abstract: The present disclosure discloses a vehicle driving control system including a road information device calculating road information of a curved road on which the vehicle drives; a road surface information device calculating road surface condition of a road; a neighboring vehicle information device calculating location information or movement information of the neighboring vehicle located close to the vehicle; and a computing device computing a target speed based on the road information calculated by the road information device, the road surface condition calculated by the road surface information device, and the location information or movement information of the neighboring vehicle calculated by the neighboring vehicle information device.Type: GrantFiled: December 22, 2021Date of Patent: October 8, 2024Assignee: HYUNDAI MOBIS CO., LTD.Inventor: Jeong Hee Lee
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Patent number: 12060511Abstract: A quantum dot including a semiconductor nanocrystal core including indium (In) and phosphorus (P) and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the semiconductor nanocrystal shell including zinc (Zn) and selenium (Se), wherein the semiconductor nanocrystal shell is doped with a dopant metal having a larger ion radius than a radius of an Zn2+ ion, the quantum dot does not include cadmium, and the quantum dot has a quantum efficiency of greater than or equal to about 70% and a full width at half maximum (FWHM) of an emission peak of less than or equal to about 40 nanometers (nm), and an electroluminescent device including the same.Type: GrantFiled: October 6, 2020Date of Patent: August 13, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yuho Won, Jeong Hee Lee, Eun Joo Jang, Ha Il Kwon, Sujin Park
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Publication number: 20240254388Abstract: A quantum dot including: a core including a first semiconductor nanocrystal material including zinc, tellurium, and selenium; and a semiconductor nanocrystal shell disposed on the core, the semiconductor nanocrystal shell including zinc, selenium, and sulfur, wherein the quantum dot does not include cadmium, and in the quantum dot, a mole ratio of the sulfur with respect to the selenium is less than or equal to about 2.4:1. A production method of the quantum dot and an electronic device including the same are also disclosed.Type: ApplicationFiled: April 9, 2024Publication date: August 1, 2024Inventors: Yuho WON, Sung Woo KIM, Jin A KIM, Jeong Hee LEE, Tae Hyung KIM, Eun Joo JANG
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Patent number: 12041802Abstract: Quantum dots and electroluminescent devices including the same, wherein the quantum dots include a core including a first semiconductor nanocrystal including a zinc chalcogenide; and a shell disposed on the core, the shell including zinc, sulfur, and selenium, wherein the quantum dots have an average particle size of greater than 10 nm, wherein the quantum dots do not include cadmium, and wherein a photoluminescent peak of the quantum dots is present in a wavelength range of greater than or equal to about 430 nm and less than or equal to about 470 nm.Type: GrantFiled: January 26, 2023Date of Patent: July 16, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin A Kim, Yuho Won, Sung Woo Kim, Tae Hyung Kim, Jeong Hee Lee, Eun Joo Jang
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Patent number: 11993276Abstract: An integrated control apparatus and method for a vehicle are provided. The integrated control apparatus for the vehicle includes: a sensor unit comprising one or more sensing devices provided in the vehicle, wherein each of the one or more sensing devices provides driving environment information by sensing driving environments of the vehicle; an integrated control unit configured to generate one or more control commands for driving control of the vehicle based on one or more pieces of driving condition information of the vehicle received from a network of the vehicle and each driving environment information received from the sensor unit, mediate the generated control commands according to priorities determined based on driving safety of the vehicle and assigned to the respective control commands, and generate a final control command in which output response characteristic of the driving control according to the control command having higher priority is optimized.Type: GrantFiled: March 25, 2022Date of Patent: May 28, 2024Assignee: Hyundai Mobis Co., Ltd.Inventor: Jeong Hee Lee
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Patent number: 11982018Abstract: A semiconductor nanocrystal particle, a production method thereof, and a light emitting device including the same. The semiconductor nanocrystal particle includes a core including a first semiconductor nanocrystal, a first shell surrounding the core, the first shell including a second semiconductor nanocrystal including a different composition from the first semiconductor nanocrystal, a second shell surrounding the first shell, the second shell including a third semiconductor nanocrystal including a different composition from the second semiconductor nanocrystal, wherein the first semiconductor nanocrystal includes zinc and sulfur; wherein the third semiconductor nanocrystal includes zinc and sulfur; wherein an energy bandgap of the second semiconductor nanocrystal is less than an energy bandgap of the first semiconductor nanocrystal and less than an energy bandgap of the third semiconductor nanocrystal; and wherein the semiconductor nanocrystal particle does not include cadmium.Type: GrantFiled: November 4, 2022Date of Patent: May 14, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin A Kim, Yuho Won, Sung Woo Kim, Tae Hyung Kim, Jeong Hee Lee, Eun Joo Jang
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Patent number: 11981851Abstract: A quantum dot including a core comprising a first semiconductor nanocrystal including a zinc chalcogenide and a semiconductor nanocrystal shell disposed on the surface of the core and comprising zinc, selenium, and sulfur. The quantum dot does not comprise cadmium, emits blue light, and may exhibit a digital diffraction pattern obtained by a Fast Fourier Transform of a transmission electron microscopic image including a (100) facet of a zinc blende structure. In an X-ray diffraction spectrum of the quantum dot, a ratio of a defect peak area with respect to a peak area of a zinc blende crystal structure is less than about 0.8:1. A method of producing the quantum dot, and an electroluminescent device including the quantum dot are also disclosed.Type: GrantFiled: November 11, 2022Date of Patent: May 14, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung Woo Kim, Jin A Kim, Tae Hyung Kim, Kun Su Park, Yuho Won, Jeong Hee Lee, Eun Joo Jang, Hyo Sook Jang, Yong Seok Han, Heejae Chung
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Patent number: 11981852Abstract: A quantum dot including: a core including a first semiconductor nanocrystal material including zinc, tellurium, and selenium; and a semiconductor nanocrystal shell disposed on the core, the semiconductor nanocrystal shell including zinc, selenium, and sulfur, wherein the quantum dot does not include cadmium, and in the quantum dot, a mole ratio of the sulfur with respect to the selenium is less than or equal to about 2.4:1. A production method of the quantum dot and an electronic device including the same are also disclosed.Type: GrantFiled: February 24, 2023Date of Patent: May 14, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yuho Won, Sung Woo Kim, Jin A Kim, Jeong Hee Lee, Tae Hyung Kim, Eun Joo Jang
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Patent number: 11963376Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.Type: GrantFiled: September 14, 2022Date of Patent: April 16, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tae Ho Kim, Won Sik Yoon, Jeong Hee Lee, Eun Joo Jang, Oul Cho
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Patent number: 11935984Abstract: A quantum dot including a core that includes a first semiconductor nanocrystal including zinc and selenium, and optionally sulfur and/or tellurium, and a shell that includes a second semiconductor nanocrystal including zinc, and at least one of sulfur or selenium is disclosed. The quantum dot has an average particle diameter of greater than or equal to about 13 nm, an emission peak wavelength in a range of about 440 nm to about 470 nm, and a full width at half maximum (FWHM) of an emission wavelength of less than about 25 nm. A method for preparing the quantum dot, a quantum dot-polymer composite including the quantum dot, and an electronic device including the quantum dot is also disclosed.Type: GrantFiled: December 14, 2022Date of Patent: March 19, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong Seok Han, Sung Woo Kim, Jin A Kim, Tae Hyung Kim, Kun Su Park, Yuho Won, Jeong Hee Lee, Eun Joo Jang, Hyo Sook Jang
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Patent number: 11934204Abstract: An autonomous driving apparatus and method, in which the autonomous driving apparatus may include a sensor unit configured to detect a surrounding object including a surrounding vehicle around an ego vehicle that autonomously travels, a memory configured to store map information, and a processor configured to control autonomous driving of the ego vehicle based on an expected driving trajectory generated based on the map information stored in the memory.Type: GrantFiled: May 12, 2020Date of Patent: March 19, 2024Assignee: Hyundai Mobis Co., Ltd.Inventors: Yong Kwan Ji, Jun Han Lee, Jeong Hee Lee
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Patent number: 11925044Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.Type: GrantFiled: September 14, 2022Date of Patent: March 5, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tae Ho Kim, Won Sik Yoon, Jeong Hee Lee, Eun Joo Jang, Oul Cho
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Publication number: 20230392074Abstract: A semiconductor nanocrystal particle including zinc (Zn), tellurium (Te) and selenium (Se), a method of producing the same, and an electronic device including the same are disclosed. In the semiconductor nanocrystal particle, an amount of the tellurium is less than an amount of the selenium, the particle includes a core including a first semiconductor material including zinc, tellurium, and selenium and a shell disposed on at least a portion of the core and including a second semiconductor material having a different composition from the first semiconductor material, and the semiconductor nanocrystal particle emits blue light including a maximum peak emission at a wavelength of less than or equal to about 470 nanometers.Type: ApplicationFiled: August 21, 2023Publication date: December 7, 2023Inventors: Jeong Hee LEE, Eun Joo JANG, Hyun A KANG, Tae Hyung KIM
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Patent number: 11834597Abstract: A method of producing a quantum dot comprising zinc selenide, the method comprising: providing an organic ligand mixture comprising a carboxylic acid compound, a primary amine compound, a secondary amide compound represented by Chemical Formula 1, and a first organic solvent: RCONHR??Chemical Formula 1 wherein each R is as defined herein; heating the organic ligand mixture in an inert atmosphere at a first temperature to obtain a heated organic ligand mixture; adding a zinc precursor, a selenium precursor, and optionally a tellurium precursor to the heated organic ligand mixture to obtain a reaction mixture, wherein the zinc precursor does not comprise oxygen; and heating the reaction mixture at a first reaction temperature to synthesize a first semiconductor nanocrystal particle.Type: GrantFiled: November 22, 2021Date of Patent: December 5, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jeong Hee Lee, Hyun A Kang, Sung Woo Kim, Jin A Kim, Tae Hyung Kim, Yuho Won, Eun Joo Jang
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Publication number: 20230313038Abstract: A quantum dot comprising a core comprising a first semiconductor nanocrystal comprising zinc, selenium, and optionally tellurium; and a shell disposed on the core and comprising a second semiconductor nanocrystal having a different composition from the first semiconductor nanocrystal, and comprising zinc and at least one of sulfur and selenium, wherein the shell comprises at least three branches extending from the core, wherein at least one of the branches has a length of greater than or equal to about 2 nm, the quantum dot emits blue light comprising a maximum emission peak at a wavelength of less than or equal to about 470 nm, a full width at half maximum (FWHM) of the maximum emission peak is less than about 35 nm, and the quantum dot does not comprise cadmium.Type: ApplicationFiled: April 18, 2023Publication date: October 5, 2023Inventors: Sung Woo KIM, Jin A. KIM, Tae Hyung KIM, Jeong Hee LEE, Eun Joo JANG
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Patent number: 11767472Abstract: A semiconductor nanocrystal particle including zinc (Zn), tellurium (Te) and selenium (Se), a method of producing the same, and an electronic device including the same are disclosed. In the semiconductor nanocrystal particle, an amount of the tellurium is less than an amount of the selenium, the particle includes a core including a first semiconductor material including zinc, tellurium, and selenium and a shell disposed on at least a portion of the core and including a second semiconductor material having a different composition from the first semiconductor material, and the semiconductor nanocrystal particle emits blue light including a maximum peak emission at a wavelength of less than or equal to about 470 nanometers.Type: GrantFiled: March 31, 2022Date of Patent: September 26, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jeong Hee Lee, Eun Joo Jang, Hyun A Kang, Tae Hyung Kim