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).

  • Patent number: 11421151
    Abstract: A light emitting device including a semiconductor nanocrystal and a ligand bound to a surface of the semiconductor nanocrystal, wherein the ligand includes an organic thiol ligand or a salt thereof and a polyvalent metal compound including a metal including Zn, In, Ga, Mg, Ca, Sc, Sn, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Sr, Y, Zr, Nb, Mo, Cd, Ba, Au, Hg, Tl, or a combination thereof, and a display device including the light emitting device.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: August 23, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Oul Cho, Jooyeon Ahn, Eun Joo Jang, Dae Young Chung, Hyun A Kang, Tae Hyung Kim, Yun Sung Woo, Jeong Hee Lee, Shin Ae Jun
  • Publication number: 20220219690
    Abstract: 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: Application
    Filed: December 22, 2021
    Publication date: July 14, 2022
    Applicant: HYUNDAI MOBIS Co., Ltd.
    Inventor: Jeong Hee LEE
  • Publication number: 20220220379
    Abstract: 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: Application
    Filed: March 31, 2022
    Publication date: July 14, 2022
    Inventors: Jeong Hee LEE, Eun Joo JANG, Hyun A KANG, Tae Hyung KIM
  • Publication number: 20220212684
    Abstract: 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: Application
    Filed: March 25, 2022
    Publication date: July 7, 2022
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventor: Jeong Hee LEE
  • Publication number: 20220204844
    Abstract: A quantum dot including zinc, tellurium, selenium, and sulfur, wherein the quantum dot comprises a core and a shell disposed on the core, and wherein the quantum dot is a cadmium-free red light-emitting quantum dot and has an emission peak wavelength of greater than or equal to about 600 nanometers (nm), and efficiency of greater than or equal to about 50%.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 30, 2022
    Inventors: Yuho WON, Hwea Yoon KIM, Jeong Hee LEE, Eun Joo JANG, Hyo Sook JANG
  • Patent number: 11319487
    Abstract: 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: Grant
    Filed: May 10, 2018
    Date of Patent: May 3, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong Hee Lee, Eun Joo Jang, Hyun A Kang, Tae Hyung Kim
  • Patent number: 11312387
    Abstract: 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: Grant
    Filed: June 10, 2019
    Date of Patent: April 26, 2022
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Jeong Hee Lee
  • Publication number: 20220089950
    Abstract: 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: Application
    Filed: December 6, 2021
    Publication date: March 24, 2022
    Inventors: Sung Woo KIM, Jin A KIM, Tae Hyung KIM, Jeong Hee LEE, Eun Joo JANG
  • Publication number: 20220081614
    Abstract: 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: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Inventors: Jeong Hee LEE, Hyun A KANG, Sung Woo KIM, Jin A KIM, Tae Hyung KIM, Yuho WON, Eun Joo JANG
  • Publication number: 20220052288
    Abstract: 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: Application
    Filed: October 27, 2021
    Publication date: February 17, 2022
    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
  • Patent number: 11233211
    Abstract: 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: Grant
    Filed: March 13, 2019
    Date of Patent: January 25, 2022
    Assignee: 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
  • Patent number: 11193061
    Abstract: 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: Grant
    Filed: November 20, 2018
    Date of Patent: December 7, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Woo Kim, Jin A Kim, Tae Hyung Kim, Jeong Hee Lee, Eun Joo Jang
  • Patent number: 11180694
    Abstract: 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: Grant
    Filed: April 17, 2020
    Date of Patent: November 23, 2021
    Assignee: 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
  • Publication number: 20210207027
    Abstract: 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: Application
    Filed: March 1, 2021
    Publication date: July 8, 2021
    Inventors: Yuho WON, Sung Woo KIM, Jin A KIM, Jeong Hee LEE, Tae Hyung KIM, Eun Joo JANG
  • Publication number: 20210202869
    Abstract: 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: Application
    Filed: March 5, 2021
    Publication date: July 1, 2021
    Inventors: Jin A KIM, Yuho WON, Sung Woo KIM, Tae Hyung KIM, Jeong Hee LEE, Eun Joo JANG
  • Patent number: 11018311
    Abstract: An electronic device includes a first electrode and a second electrode facing each other, an emission layer comprising a plurality of quantum dots, wherein the emission layer is disposed between the first electrode and the second electrode; a first charge auxiliary layer disposed between the first electrode and the emission layer; and an optical functional layer disposed on the second electrode on a side opposite the emission layer, wherein the first electrode includes a reflecting electrode, wherein the second electrode is a light-transmitting electrode, wherein a region between the optical functional layer and the first electrode comprises a microcavity structure, and a refractive index of the optical functional layer is greater than or equal to a refractive index of the second electrode.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: May 25, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae Young Chung, Eun Joo Jang, Oul Cho, Hyun A Kang, Tae Hyung Kim, Yun Sung Woo, Jeong Hee Lee
  • Patent number: 11011720
    Abstract: A quantum dot including a core including a first semiconductor nanocrystal including zinc, tellurium, and selenium and a semiconductor nanocrystal shell disposed on the core and including zinc, tellurium, selenium, and sulfur, a production method thereof, and an electronic device including the same. The quantum dot is free of cadmium, the quantum dot has a mole ratio of tellurium with respect to selenium of less than or equal to about 0.06:1, a photoluminescence peak wavelength of the quantum dot is greater than or equal to about 450 nm and less than or equal to about 470 nanometers (nm), and a full width at half maximum (FWHM) of a photoluminescence peak of the quantum dot is less than or equal to about 41 nm.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: May 18, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Hyung Kim, Sung Woo Kim, Jin A Kim, Yuho Won, Jeong Hee Lee, Eun Joo Jang, Oul Cho
  • Publication number: 20210115331
    Abstract: 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: Application
    Filed: October 6, 2020
    Publication date: April 22, 2021
    Inventors: Yuho WON, Jeong Hee LEE, Eun Joo JANG, Ha Il KWON, Sujin PARK
  • Patent number: 10978657
    Abstract: 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: Grant
    Filed: August 23, 2019
    Date of Patent: April 13, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin A Kim, Yuho Won, Sung Woo Kim, Tae Hyung Kim, Jeong Hee Lee, Eun Joo Jang
  • Patent number: 10978660
    Abstract: An electronic device includes a first electrode and a second electrode facing each other, an emission layer comprising a plurality of quantum dots, wherein the emission layer is disposed between the first electrode and the second electrode; a first charge auxiliary layer disposed between the first electrode and the emission layer; and an optical functional layer disposed on the second electrode on a side opposite the emission layer, wherein the first electrode includes a reflecting electrode, wherein the second electrode is a light-transmitting electrode, wherein a region between the optical functional layer and the first electrode comprises a microcavity structure, and a refractive index of the optical functional layer is greater than or equal to a refractive index of the second electrode.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: April 13, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae Young Chung, Eun Joo Jang, Oul Cho, Hyun A Kang, Tae Hyung Kim, Yun Sung Woo, Jeong Hee Lee