Patents by Inventor Ji-Won Lee

Ji-Won 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: 11659732
    Abstract: A display device may include a display configured to emit light for displaying an image, a microlens array on the display and configured to collimate the image incident from the display so as to be delivered to the eyes of a user, the microlens array including a refractive index conversion layer in which a refractive index varies from region to region, and an optical path adjustment layer configured to collect light, emitted from the display and transmitted by the microlens array, and to space the display and the microlens array a preset distance apart from each other. Here, the refractive index conversion layer may include a polymer and liquid crystal molecules that interact with the polymer.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: May 23, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Su Jung Huh, Soo Min Baek, Ji Won Lee, Ju Hwa Ha
  • Publication number: 20230145322
    Abstract: A multilayer ceramic capacitor includes a ceramic body including a dielectric layer and first and second internal electrodes disposed to oppose each other with the dielectric layer interposed therebetween, and first and second external electrodes disposed outside of the ceramic body and connected to the first and second internal electrodes, respectively. The ceramic body includes an active portion including of the first and second internal electrodes disposed to oppose each other with the dielectric layer interposed therebetween to form capacitance, and a cover portion disposed in upper and lower portions of the active portion. The cover portion has a larger number of pores than the dielectric layer of the active portion, and the cover portion includes a ceramic-polymer composite filled with a polymer in the pores of the cover portion.
    Type: Application
    Filed: January 6, 2023
    Publication date: May 11, 2023
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ji Won Lee, Jun Ho Yun, Seung Ryeol Lee
  • Publication number: 20230134146
    Abstract: A display driving device configured to drive a plurality of display panels includes an external illuminance calculation unit configured to calculate external illuminance using measured illuminance input from an illuminance measurement device, and accumulate and store the external illuminance according to a time zone, a weight determination unit configured to determine a weight according to the calculated external illuminance, an image processing unit configured to apply the weight to first output data to generate second output data, and a target panel determination unit configured to determine target panels that are display panels for displaying an image, among the plurality of display panels, using the second output data.
    Type: Application
    Filed: October 10, 2022
    Publication date: May 4, 2023
    Inventors: Do Hoon LEE, Ji Won LEE, Hyun Kyu JEON
  • Publication number: 20230134334
    Abstract: The present invention relates to an amine compound having a fused ring that can be employed in various organic layers in an organic light-emitting device, and a high-efficiency organic light-emitting device comprising same and having significantly improved luminous efficiency. The amine compound having a fused ring, according to the present invention, makes it possible to implement a high-efficiency organic light-emitting device by being employed as an organic layer in the device, particularly as a hole transport or electron blocking material, and thus can be industrially utilized in a flat panel display device, a flexible display device, a monochromatic or white flat panel lighting device, a monochromatic or white flexible lighting device, a vehicle display device, a virtual or augmented reality display device, and the like.
    Type: Application
    Filed: March 11, 2021
    Publication date: May 4, 2023
    Applicant: SFC CO., LTD
    Inventors: Chun-young LEE, Yoo-na SHIN, Tae-young KIM, Sung-woo KIM, Ji-won LEE
  • Patent number: 11640800
    Abstract: The present disclosure relates to a color gamut mapping method and a color gamut mapping device that allow precise color gamut tuning to be efficiently performed, and a display device including the same. A color gamut mapping method according to an aspect includes converting, by a color space converter, a first color signal of an input image into a first luminance component and a pair of first chrominance components, controlling, by a saturation controller, a saturation of the first chrominance component for each control area using a saturation gain and outputting a second chrominance component, controlling, by a hue controller, a hue of the second chrominance component for each control area and outputting a third chrominance component, entirely controlling, by an overall controller, a saturation and a hue of the third chrominance component using overall saturation gains and overall hue gains and outputting a fourth chrominance component, and inversely converting.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: May 2, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
  • Publication number: 20230129724
    Abstract: A head mount display device, includes: a display panel; and an optical system positioned in front of the display panel. The display panel sequentially includes a light emitting element part, a third retarder, a reflective polarizer, and an absorptive polarizer, where the third retarder is positioned in front of the light emitting element part; and the optical system includes: a first curved lens, which is positioned to face the display panel, and includes a first retarder positioned on a first surface facing the display panel and a beam splitter positioned on a second surface thereof opposite to the first surface; and a second curved lens, which is positioned to face the beam splitter, and includes a second retarder positioned a first surface thereof facing the beam splitter and a second reflective polarizer positioned on a second surface thereof opposite to the first surface of the second curved lens.
    Type: Application
    Filed: August 11, 2022
    Publication date: April 27, 2023
    Inventors: Cheon Myeong LEE, Sang-Ho KIM, Jun Hyeong PARK, Soo Min BAEK, Ju Youn SON, Ji Won LEE, Ju Hwa HA, Jong Ho HONG
  • Publication number: 20230118591
    Abstract: The present disclosure discloses a display driving apparatus having a mura compensation function and a method of compensating for mura of the same. To this end, the display driving apparatus may include a mura memory in which compensation data corresponding to coefficient values of a mura compensation equation is stored, and a mura compensation circuit configured to perform mura compensations on display data by using the mura compensation equation to which the compensation data has been applied.
    Type: Application
    Filed: October 12, 2022
    Publication date: April 20, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Jun Young PARK, Min Ji LEE, Gang Won LEE, Young Kyun KIM, Ji Won LEE, Jung Hyun KIM, Suk Ju KANG, Sung In CHO
  • Patent number: 11607437
    Abstract: The present invention relates to cosmetic and pharmaceutical compositions each containing a composite extract. More specifically, the present invention provides cosmetic and pharmaceutical compositions, each of which contains, as an active ingredient, a composite extract of an aloe extract and an upland rice extract, leading to excellent moisturizing, anti-inflammatory, and atopy alleviating effects, and thus can be favorably used for prevention, alleviation, and treatment of a skin disease.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: March 21, 2023
    Assignee: DAEBONG LS, LTD
    Inventors: Jin-Oh Park, Ji-Won Lee, Hye-Ja Lee, Ji-Hye Kim, Won-Bo Oh
  • Publication number: 20230081079
    Abstract: A display device includes a display part including a plurality of pixels; a lens part disposed on the display part; and a plurality of optical devices overlapping an edge of the display part in a plan view and disposed at an edge of the lens part, wherein light from the outside of the display part is incident on the plurality of optical devices.
    Type: Application
    Filed: August 2, 2022
    Publication date: March 16, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Sang-Ho KIM, Soo Min BAEK, Ju Youn SON, Ji Won LEE, Cheon Myeong LEE, Ju Hwa HA
  • Publication number: 20230073179
    Abstract: The present disclosure discloses an apparatus and method for providing compensation information, which compress the compensation information for demura and a display driving apparatus for solving a defect in a screen by using compressed compensation information. The apparatus for providing compensation information includes a compensation value provision unit configured to provide compensation values of pixels and a compression unit configured to perform compression on the compensation values for each block of a screen.
    Type: Application
    Filed: September 6, 2022
    Publication date: March 9, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Jun Young PARK, Min Ji LEE, Gang Won LEE, Young Kyun KIM, Ji Won LEE, Suk Ju KANG, Joo Sung CHOI
  • Patent number: 11594166
    Abstract: Provided are a mura compensation circuit and a driving apparatus for a display applying the same. The mura compensation circuit includes a data remapping unit configured to remap display data of a pixel having mura so that an original gray scale range of the display data has a changed gray scale range and to provide the display data having the gray scale range in which the highest gray scale of the original gray scale range is lowered to a first gray scale of the gray scale range and the lowest gray scale of the original gray scale range is raised to a second gray scale by the remapping, and a mura compensation unit configured to perform mura compensations on the display data having the changed gray scale range and to provide the display data on which the mura compensations have been performed.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: February 28, 2023
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jun Young Park, Ji Won Lee
  • Patent number: 11587525
    Abstract: The present disclosure relates to a tuning method and apparatus for a color gamut mapping device, in which a tuning time is shortened by automatically setting and changing parameters of a register when tuning the color gamut mapping device. A tuning method of a color gamut mapping device according to an aspect includes an initial setting operation of setting, by a test device, initial parameters in a register of a color gamut mapping device, a measuring operation of measuring, by a measuring device, chromaticity for each of a plurality of color images which are supplied from the test device and displayed on a panel of a display device through the color gamut mapping device, an automatic tuning operation of changing, by the test device, saturation parameters and hue parameters of a plurality of hue axes of the color gamut mapping device by using a result measured from the measuring device.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: February 21, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Min Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
  • Patent number: 11581145
    Abstract: A multilayer ceramic capacitor includes a ceramic body including a dielectric layer and first and second internal electrodes disposed to oppose each other with the dielectric layer interposed therebetween, and first and second external electrodes disposed outside of the ceramic body and connected to the first and second internal electrodes, respectively. The ceramic body includes an active portion including of the first and second internal electrodes disposed to oppose each other with the dielectric layer interposed therebetween to form capacitance, and a cover portion disposed in upper and lower portions of the active portion. The cover portion has a larger number of pores than the dielectric layer of the active portion, and the cover portion includes a ceramic-polymer composite filled with a polymer in the pores of the cover portion.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: February 14, 2023
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ji Won Lee, Jun Ho Yun, Seung Ryeol Lee
  • Patent number: 11576255
    Abstract: A flexible printed circuit board includes: a base film; a first circuit pattern disposed on an upper surface of the base film; a second circuit pattern disposed on a lower surface of the base film; and a boundary reinforcing pattern expanding the first circuit pattern in a width direction of the first circuit pattern based on a virtual boundary along which the first circuit pattern and the second circuit pattern meet each other in an overlay of the first circuit pattern and the second circuit pattern.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: February 7, 2023
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ji Won Lee, Kwang Youl Pyo, Chul Hyun Kim
  • Patent number: 11564961
    Abstract: The present invention relates to a method of making a cannabis extract composition comprising a cannabis extract as an active ingredient to reduce anti-cancer side effects and suppress cancer metastasis during internal use and administration by suppressing the activity of MMP-2 and MMP-9.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: January 31, 2023
    Assignee: FAMENITY CO., LTD.
    Inventor: Ji Won Lee
  • Patent number: 11554150
    Abstract: The present invention relates to a method of preparation of a cannabis extract composition comprising a cannabis extract as an active ingredient for relieving pain and preventing or alleviating a stress-involved disease by suppressing a cyclooxygenase (COX)-2 enzyme and preventing dopamine and serotonin from being suppressed.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: January 17, 2023
    Assignee: FAMENITY CO., LTD.
    Inventor: Ji Won Lee
  • Publication number: 20220415240
    Abstract: A voltage drop compensation system and a display driving device for compensating for a voltage drop of a display panel. The voltage drop compensation system generates a voltage drop compensation value for each of a plurality of regions into which a test image of a panel is divided, and the display driving device compensates for a voltage drop for each region of image data using the voltage drop compensation value.
    Type: Application
    Filed: June 28, 2022
    Publication date: December 29, 2022
    Applicant: LX Semicon Co., Ltd.
    Inventors: Jun Young PARK, Min Ji LEE, Gang Won LEE, Young Kyun KIM, Ju Hyoung LIM, Ji Won LEE
  • Publication number: 20220398359
    Abstract: The temperature distribution estimating method of the disclosure includes a building operation to build a numerical model for a form and thermal behavior of a substrate; a setting operation to set a regularization parameter to adjust noises of a temperature of the substrate measured by a temperature sensor; a generating operation to generate a sensitivity coefficient matrix that estimates a heat source received by the substrate from a plurality of heaters; a condensing operation to condense the sensitivity coefficient matrix based on a power ratio input in the heaters respectively; and estimating operation to estimate an entire temperature distribution of the substrate based on the numerical model, the regularization parameter, and the condensed sensitivity coefficient matrix, when predetermined temperature data are input.
    Type: Application
    Filed: February 11, 2022
    Publication date: December 15, 2022
    Inventors: Jin Gyun KIM, Chang Uk AHN, Ji Won LEE, In Chan BECK, Do Hyeong KWON
  • Publication number: 20220399214
    Abstract: An apparatus for controlling temperature uniformity of the disclosure includes a heater to supply a heat source to a substrate, a temperature sensor to generate temperature data of the substrate, a heating controller to present a distribution of a heat source based on the temperature data, and a heat source-electricity converter to calculate an amount of electricity to generate a heat source based on the distribution of a heat source and to supply the calculated amount of electricity to the heater. Since a method and an apparatus of the disclosure for controlling temperature uniformity uses a heat source and electricity having a linear relationship, problems of high costs and deterioration of an apparatus may be overcome that a typical method has to control an amount of electricity in a heater by temperature information.
    Type: Application
    Filed: February 11, 2022
    Publication date: December 15, 2022
    Inventors: Jin Gyun KIM, Chang Uk AHN, Ji Won LEE, In Chan BECK, Do Hyeong KWON
  • Publication number: 20220381438
    Abstract: An electric range is provided that may include a case, a case, a cover plate coupled to an upper end of the case, wherein an object to be heated is placed on an upper surface thereof, an air blowing fan configured to discharge air, and an air guide that communicates with the air blowing fan, wherein a cross-sectional area of the flow path of air in a portion of the air guide at which air is discharged outward is greater than a cross-sectional area of the flow path of air at a portion of the air guide at which the air guide and the air blowing fan communicate.
    Type: Application
    Filed: May 27, 2022
    Publication date: December 1, 2022
    Inventors: Ji Won Lee, Junghyeon Cho, Myoeng Soo Park