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).

  • Publication number: 20200332189
    Abstract: A semiconductor nanocrystal particle including a core including a first semiconductor nanocrystal including zinc (Zn) and sulfur (S), selenium (Se), tellurium (Te), or a combination thereof; and a shell including a second semiconductor nanocrystal disposed on at least a portion of the core, wherein the core includes a dopant of a Group 1A element, a Group 2A element, or a combination thereof, and the semiconductor nanocrystal particle exhibits a maximum peak emission in a wavelength region of about 440 nanometers (nm) to about 470 nm.
    Type: Application
    Filed: April 17, 2020
    Publication date: October 22, 2020
    Inventors: Jeong Hee LEE, Hyo Sook JANG, Sung Woo KIM, Jin A KIM, Tae Hyung KIM, Yuho WON, Eun Joo JANG, Yong Seok HAN
  • Patent number: 10808169
    Abstract: A method of grinding a semiconductor nanocrystal-polymer composite, the method including obtaining a semiconductor nanocrystal-polymer composite including a semiconductor nanocrystal and a first polymer, contacting the semiconductor nanocrystal-polymer composite with an inert organic solvent; and grinding the semiconductor nanocrystal-polymer composite in the presence of the inert organic solvent to grind the semiconductor nanocrystal-polymer composite.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong Hee Lee, Hyun A Kang, Eun Joo Jang, Sang Eui Lee, Shin Ae Jun, Oul Cho, Tae Gon Kim, Tae Hyung Kim
  • Publication number: 20200248073
    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: April 17, 2020
    Publication date: August 6, 2020
    Inventors: Jeong Hee LEE, Hyun A KANG, Sung Woo KIM, Jin A KIM, Tae Hyung KIM, Yuho WON, Eun Joo JANG
  • Publication number: 20200194703
    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: Application
    Filed: February 21, 2020
    Publication date: June 18, 2020
    Inventors: Dae Young CHUNG, Eun Joo JANG, Oul CHO, Hyun A KANG, Tae Hyung KIM, Yun Sung WOO, Jeong Hee LEE
  • Patent number: 10647917
    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: October 25, 2018
    Date of Patent: May 12, 2020
    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
  • Patent number: 10615356
    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: April 10, 2017
    Date of Patent: April 7, 2020
    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: 10585226
    Abstract: A light conversion device includes a frame through which incident light is received from a light source and converted light is emitted from the light conversion device, the frame including: an opening through which light of a first color is received from the light source and from which light of a second color is emitted from the light conversion device, and a wall which surrounds the opening, a substrate in the opening and supported by the wall, a light conversion layer which is disposed on the substrate and receives the light of the first color from the light source, the light conversion layer including a light converting particle which converts the light of the first color to the light of the second color, a first inorganic layer disposed on the light conversion layer, and a first organic layer disposed on the first inorganic layer.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: March 10, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Oul Cho, Eun Joo Jang, Hyun A Kang, Tae Hyung Kim, Jeong Hee Lee
  • Patent number: 10577484
    Abstract: A composition including: a monomer mixture including a first monomer having at least two thiol groups at its terminal end and a second monomer having at least two carbon-carbon unsaturated bond-containing groups at its terminal end; and at least one additive selected from a zinc compound, an indium compound, ascorbic acid or a salt thereof, citric acid or a salt thereof, a tocopherol, and a tocotrienol.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: March 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong Hee Lee, Hyun A Kang, Eun Joo Jang, Na Youn Won
  • Patent number: 10575682
    Abstract: A cooking device includes a cooking chamber configured to provide a space in which food is cooked; a tray located at a bottom surface of the cooking chamber, and connected to a drive member generating rotational force; and an agitating cooking assembly supported by the tray and rotatable with the tray. The agitating cooking assembly, having an improved structure configured to cook food while simultaneously agitating the food, includes: a cooking container configured to store food therein; an agitating member configured to agitate the food while simultaneously relatively rotating in the cooking container with respect to the cooking container; and a stopper located at a rotation path of the agitating member in a manner that the agitating member relatively rotates with respect to the cooking container.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: March 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Gyu Sik Lim, Jong Hoon Lee, Sun Hee Koo, Jeong Hee Lee, Hong Man Chang
  • Publication number: 20200063032
    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: August 23, 2019
    Publication date: February 27, 2020
    Inventors: Jin A KIM, Yuho WON, Sung Woo KIM, Tae Hyung KIM, Jeong Hee LEE, Eun Joo JANG
  • Patent number: 10559726
    Abstract: A layered structure having a first layer including a polymerization product of a monomer combination including a first monomer having at least two thiol groups at its terminal end and a second monomer having at least two carbon-carbon unsaturated bond-containing groups at its terminal end, wherein the first monomer includes a first thiol compound represented by Chemical Formula 1-1 including a thioglycolate moiety and a second thiol represented by Chemical Formula 1-2, and wherein the second monomer includes an ene compound represented by Chemical Formula 2: wherein in Chemical Formulae 1-1, 1-2, and 2, groups and variables are the same as described in the specification.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: February 11, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun A Kang, Nayoun Won, Eun Joo Jang, Ha Il Kwon, Jeong Hee Lee, Oul Cho, Tomoyuki Kikuchi
  • Publication number: 20200044173
    Abstract: 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: Application
    Filed: August 2, 2019
    Publication date: February 6, 2020
    Inventors: Tae Ho Kim, Won Sik Yoon, Jeong Hee Lee, Eun Joo Jang, Oul Cho
  • Publication number: 20200023860
    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: June 10, 2019
    Publication date: January 23, 2020
    Inventor: Jeong Hee LEE
  • Patent number: 10472562
    Abstract: A quantum dot-polymer micronized composite includes a first polymer matrix; a plurality of quantum dots dispersed in the first polymer matrix; and at least one of an additive selected from a clay particle embedded in the first polymer matrix and a metal halide dispersed in the first polymer matrix, wherein the quantum dot-polymer micronized composite has an average particle size of less than or equal to about 100 micrometers, a production method thereof, and an article and an electronic device including the micronized composite are provided.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: November 12, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong Hee Lee, Hyun A Kang, Tae Hyung Kim, Eun Joo Jang, Nayoun Won, Jiho You
  • Patent number: 10467485
    Abstract: A driving lane guidance system may include: a navigation information receiver configured to receive navigation information; a DAS sensor configured to sense forward and surrounding states of an ego vehicle; a controller configured to determine a driving lane of a highway based on the navigation information, sense a lane change and a neighboring vehicle based on the forward and surrounding states inputted from the DAS sensor, and correct the driving lane; and a display unit configured to display the driving lane determined or corrected by the controller.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: November 5, 2019
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Jeong Hee Lee
  • Publication number: 20190288229
    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: March 13, 2019
    Publication date: September 19, 2019
    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
  • Publication number: 20190276737
    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 11, 2019
    Publication date: September 12, 2019
    Inventors: Yuho WON, Sung Woo KIM, Jin A KIM, Jeong Hee LEE, Tae Hyung KIM, Eun Joo JANG
  • Publication number: 20190280233
    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: Application
    Filed: March 11, 2019
    Publication date: September 12, 2019
    Inventors: Tae Hyung KIM, Sung Woo KIM, Jin A KIM, Yuho WON, Jeong Hee LEE, Eun Joo JANG, Oul CHO
  • Publication number: 20190276738
    Abstract: A quantum dot includes a core including a first semiconductor nanocrystal material including zinc, tellurium, and selenium; and a semiconductor nanocrystal shell disposed on (e.g., directly on) the core and including zinc, selenium, and sulfur, wherein the quantum dot does not include cadmium, wherein a size of the quantum dot is greater than or equal to about 10 nanometers (nm) and the quantum dot includes at least four protrusions. A production method thereof and an electronic device including the same are also disclosed.
    Type: Application
    Filed: March 11, 2019
    Publication date: September 12, 2019
    Inventors: Tae Hyung KIM, Jeong Hee LEE, Sung Woo KIM, Jin A KIM, Yuho WON, Eun Joo JANG
  • Publication number: 20190257003
    Abstract: 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: Application
    Filed: February 21, 2019
    Publication date: August 22, 2019
    Inventors: Jin A. KIM, Yuho WON, Sung Woo KIM, Tae Hyung KIM, Jeong Hee LEE, Eun Joo JANG