Patents by Inventor Mi-Hwa Lee

Mi-Hwa 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: 11703728
    Abstract: A black matrix composition and a display device including the same are provided. The black matrix composition includes solids including a pigment including a carbon black and an array of vertically aligned carbon nanotubes, a binder, a monomer, a photoinitiator and an additive, and a solvent.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: July 18, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yi Seop Shim, Su Jeong Kim, Mi Hwa Lee, Yun Ho Lee, Jun Woo Lee
  • Patent number: 11515500
    Abstract: A display device includes: a base substrate; a light emitting element on the base substrate; a thin film encapsulation layer on the light emitting element to encapsulate the light emitting element; a touch member on the thin film encapsulation layer; a color filter layer on the touch member; and a planarization layer on the color filter layer to cover the color filter layer, wherein the planarization layer includes a light absorber represented by Formula 1: X—Ar—Y.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: November 29, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mi Hwa Lee, Su Jeong Kim, Yi Su Kim, Yi Seop Shim, Jin Hyeong Lee, Eun Jae Jeong
  • Publication number: 20220271262
    Abstract: A display device is provided. The display device comprises a thin-film transistor layer disposed on a substrate, a light emitting element layer disposed on the thin-film transistor layer, a touch sensing layer disposed on the light emitting layer, and a reflection control layer disposed on the touch sensing layer, wherein the reflection control layer includes a UV absorber, wherein the UV absorber includes at least one hydrophobic group, and/or the UV absorber is present as a concentration gradient in the reflection control layer.
    Type: Application
    Filed: November 1, 2021
    Publication date: August 25, 2022
    Inventors: Mi Hwa LEE, Suk Hoon KANG, Jeong Myo SIM, Kyung Hee LEE
  • Patent number: 11342536
    Abstract: A display device includes: a display layer having a display area including a plurality of pixel areas and a peripheral area at least partially surrounding the display area; and a cover layer disposed on the display layer to encapsulate the display area. The cover layer includes: a light blocking portion overlapping the display area and the peripheral area and including a plurality of openings to transmit light from the plurality of pixel areas and to block light in the peripheral area; a first protrusion disposed on the light blocking portion in the peripheral area and surrounding the display area; and an overcoating layer covering the display area and contacting a lateral surface of the first protrusion.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: May 24, 2022
    Assignee: Samsung Display Co., LTD.
    Inventors: Jin Hyeong Lee, Su Jeong Kim, Jong Ho Son, Mi Hwa Lee, Yun Ho Lee
  • Publication number: 20210215980
    Abstract: A black matrix composition and a display device including the same are provided. The black matrix composition includes solids including a pigment including a carbon black and an array of vertically aligned carbon nanotubes, a binder, a monomer, a photoinitiator and an additive, and a solvent.
    Type: Application
    Filed: July 10, 2020
    Publication date: July 15, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Yi Seop SHIM, Su Jeong KIM, Mi Hwa LEE, Yun Ho LEE, Jun Woo LEE
  • Patent number: 11029568
    Abstract: A photoalignment agent is provided. The photoalignment agent includes a copolymer of ii) at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and ii) a diamine, and the diamine includes an electron donor group.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: June 8, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Hoon Kang, Yeong Rong Park, Mi Hwa Lee, Jun Woo Lee, Baek Kyun Jeon
  • Publication number: 20210143360
    Abstract: A display device includes: a base substrate; a light emitting element on the base substrate; a thin film encapsulation layer on the light emitting element to encapsulate the light emitting element; a touch member on the thin film encapsulation layer; a color filter layer on the touch member; and a planarization layer on the color filter layer to cover the color filter layer, wherein the planarization layer includes a light absorber represented by Formula 1: X—Ar—Y.
    Type: Application
    Filed: June 22, 2020
    Publication date: May 13, 2021
    Inventors: Mi Hwa LEE, Su Jeong KIM, Yi Su KIM, Yi Seop SHIM, Jin Hyeong LEE, Eun Jae JEONG
  • Patent number: 10936126
    Abstract: A display includes a substrate, a plurality of subpixels disposed on the substrate and that include organic light-emitting layers, pixel defining films disposed between the subpixels that partition the subpixels, black matrices disposed on the pixel defining films, where the black matrices absorb visible light and emit infrared light; and a sensor layer that receives infrared light emitted by the black matrices and reflected from an external object.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: March 2, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Hyeong Lee, Su Jeong Kim, Jong Ho Son, Mi Hwa Lee, Yun Ho Lee
  • Publication number: 20200395574
    Abstract: A display device includes: a display layer having a display area including a plurality of pixel areas and a peripheral area at least partially surrounding the display area; and a cover layer disposed on the display layer to encapsulate the display area. The cover layer includes: a light blocking portion overlapping the display area and the peripheral area and including a plurality of openings to transmit light from the plurality of pixel areas and to block light in the peripheral area; a first protrusion disposed on the light blocking portion in the peripheral area and surrounding the display area; and an overcoating layer covering the display area and contacting a lateral surface of the first protrusion.
    Type: Application
    Filed: January 15, 2020
    Publication date: December 17, 2020
    Inventors: Jin Hyeong LEE, Su Jeong Kim, Jong Ho Son, Mi Hwa Lee, Yun Ho Lee
  • Publication number: 20200133414
    Abstract: A display includes a substrate, a plurality of subpixels disposed on the substrate and that include organic light-emitting layers, pixel defining films disposed between the subpixels that partition the subpixels, black matrices disposed on the pixel defining films, where the black matrices absorb visible light and emit infrared light; and a sensor layer that receives infrared light emitted by the black matrices and reflected from an external object.
    Type: Application
    Filed: April 5, 2019
    Publication date: April 30, 2020
    Inventors: Jin Hyeong Lee, Su Jeong Kim, Jong Ho Son, Mi Hwa Lee, Yun Ho Lee
  • Patent number: 10421907
    Abstract: A liquid crystal display includes a first base substrate, a second base substrate, an electrode part, and a liquid crystal layer. The second base substrate is disposed opposite to the first base substrate. The electrode part is disposed on at least one of the first base substrate and the second base substrate. The liquid crystal layer is disposed between the first base substrate and the second base substrate. The liquid crystal layer includes a liquid crystal composition. The liquid crystal composition includes at least one kind of liquid crystal compounds including a cyclopentadienyl group.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: September 24, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min Hee Kim, So Youn Park, Tae Ho Kim, Mi Hwa Lee, Kyung Ho Park, Chang Hun Lee
  • Patent number: 10202491
    Abstract: A liquid crystal photoalignment agent is provided. The liquid crystal photoalignment agent is a copolymer of a cyclobutane dianhydride (“CBDA”) and a CBDA derivative.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: February 12, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Hoon Kang, Hoi-Lim Kim, Yeong Rong Park, Mi Hwa Lee, Jun Woo Lee, Baek Kyun Jeon
  • Patent number: 10159667
    Abstract: The present invention relates to a composition for preventing or treating renal diseases. The composition of the present invention improves lipid metabolism, prevents histological damage including renal fibrosis, alleviates microalbuminuria, and maintains nephrons of renal glomeruli. Therefore, the composition is useful for treating renal diseases.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: December 25, 2018
    Assignee: DONG-A ST Co., Ltd
    Inventors: Dae Ryong Cha, Young Sun Kang, Jin Joo Cha, Ji Eun Lee, Hyun Wook Kim, Mi Hwa Lee, Jung Eun Kim, Mi-Kyung Kim, Moon-Ho Son, Soon Hoe Kim
  • Patent number: 10108050
    Abstract: A photoalignment agent is provided. The photoalignment agent includes a copolymer of at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and a realignment property diamine, wherein two or more aromatic rings in the realignment property diamine are connected by an ester group.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: October 23, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yeong Rong Park, Suk Hoon Kang, Mi Hwa Lee, Baek Kyun Jeon
  • Publication number: 20180127548
    Abstract: A photoalignment agent is provided. The photoalignment agent includes a copolymer of ii) at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and ii) a diamine, and the diamine includes an electron donor group.
    Type: Application
    Filed: January 5, 2018
    Publication date: May 10, 2018
    Inventors: Suk Hoon KANG, Yeong Rong PARK, Mi Hwa LEE, Jun Woo LEE, Baek Kyun JEON
  • Publication number: 20180072950
    Abstract: A liquid crystal composition and a display device having the liquid crystal composition. The liquid crystal composition including at least one compound selected from the group consisting of Chemical Formula 1, Chemical Formula 2, Chemical Formula 3, and Chemical Formula 4. Chemical Formulas 1, 2, 3, and 4 are as follows: R denotes an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms, independently, in Chemical Formula 1, Chemical Formula 2, and Chemical Formula 4.
    Type: Application
    Filed: April 25, 2017
    Publication date: March 15, 2018
    Inventors: Tae Ho KIM, Min-Hee KIM, Kyung Ho PARK, So Youn PARK, Mi Hwa LEE, Chang-Hun LEE
  • Publication number: 20180057741
    Abstract: A liquid crystal display includes a first base substrate, a second base substrate, an electrode part, and a liquid crystal layer. The second base substrate is disposed opposite to the first base substrate. The electrode party is disposed on at least one of the first base substrate and the second base substrate. The liquid crystal layer is disposed between the first base substrate and the second base substrate. The liquid crystal layer includes a liquid crystal composition. The liquid crystal composition includes at least one kind of liquid crystal compounds including a cyclopentadienyl group.
    Type: Application
    Filed: June 1, 2017
    Publication date: March 1, 2018
    Inventors: MIN HEE KIM, So Youn Park, Tae Ho Kim, Mi Hwa Lee, Kyung Ho Park, Chang Hun Lee
  • Patent number: 9890249
    Abstract: A photoalignment agent is provided. The photoalignment agent includes a copolymer of ii) at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and ii) a diamine, and the diamine includes an electron donor group.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: February 13, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Hoon Kang, Yeong Rong Park, Mi Hwa Lee, Jun Woo Lee, Baek Kyun Jeon
  • Patent number: 9829747
    Abstract: A liquid crystal display panel includes a first substrate, a second substrate, a first alignment layer, a second alignment layer and a liquid crystal layer. The second substrate faces the first substrate. The liquid crystal layer is disposed between the first alignment layer and the second alignment layer. The first alignment layer and the second alignment layer each include a polyimide compound polymerized by cyclobutane-1,2,3,4-tetracarboxylic dianhydride and cyclobutane-1,2,3,4-tetracarboxylic dianhydride derivative.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: November 28, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk-Hoon Kang, Yeong-Rong Park, Mi-Hwa Lee, Jun-Woo Lee, Bong-Sung Seo, Baek-Kyun Jeon
  • Patent number: 9810949
    Abstract: An apparatus for manufacturing a display device includes: a stage on which a substrate to be processed is supported, the substrate to be processed including a first alignment layer of the display device; an optical system facing the substrate to be processed which is supported on the stage, the optical system including a light source which irradiates ultraviolet rays to the substrate to be processed; and a mask which is interposed between the light source and the substrate to be processed which includes the first alignment layer of the display device. The mask defines: a transmitting portion thereof through which the ultraviolet rays irradiated from the light source are transmitted to the first alignment layer of the substrate to be processed, and a blocking portion thereof which blocks transmission of the ultraviolet rays irradiated from the light source to the substrate to be processed.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: November 7, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Mi Hwa Lee, Min Hee Kim, Soo Jung Youn, Chang Hun Lee, Sung Hwan Hong