Patents by Inventor Baek-Hee Lee

Baek-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: 9897854
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a display panel, and a color conversion layer coupled to the display panel and having a color conversion layer, where the color conversion layer includes a block copolymer including a first copolymer and a second copolymer, and quantum rods dispersed within the block copolymer. The block copolymer includes a first block structure unit formed by the first copolymer; and a second block structure unit formed by the second copolymer, where the quantum rods is are disposed within either one of the first block structure unit and the second block structure unit.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: February 20, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Baek Hee Lee, Nam Seok Roh, Seung-Won Park, Hae Il Park
  • Patent number: 9885954
    Abstract: A photosensitive resin composition according to an exemplary embodiment of the present invention includes: a nanophosphor; a photo-polymerization initiator including an acetophenone-based initiator; and a photo-polymerization compound, wherein the photo-polymerization initiator further includes at least one among a thioxanthone-based initiator, an oxime-based initiator, and a benzophenone-based initiator.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: February 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Baek Hee Lee, Young Min Kim, Min Ki Nam, Hae Il Park, Seon-Tae Yoon
  • Publication number: 20170329175
    Abstract: A display device may include a first polarizer, a second polarizer, a liquid crystal layer, a light unit, a color filter layer, and a particle set. The second polarizer may overlap the first polarizer. The liquid crystal layer may be positioned between the first polarizer and the second polarizer. The light unit may overlap the liquid crystal layer and may provide first light. The first polarizer may be positioned between the light unit and the liquid crystal layer. The color filter layer may overlap the liquid crystal layer. The second polarizer may be positioned between the color filter layer and the liquid crystal layer. The particle set may include a plurality of particles, may overlap the liquid crystal layer, and may scatter the first light. The second polarizer may be positioned between the particle set and the liquid crystal layer.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Inventors: Baek Hee LEE, Yong Seok KIM, Min Ki NAM, Hae Il PARK
  • Publication number: 20170240728
    Abstract: A photosensitive resin composition according to an example embodiment of the present disclosure includes a quantum dot, a photopolymerizable compound, a photopolymerization initiator, an alkali-soluble resin, and a solvent, wherein the alkali-soluble resin includes at least one of a monomer represented by Formula 1 and a monomer represented by Formula 2:
    Type: Application
    Filed: January 5, 2017
    Publication date: August 24, 2017
    Inventors: Baek Hee Lee, Min Ki Nam, Young Min Kim, Kyoung Won Park, Hae Il Park, Ju Ho Kim, Hyoun Woo Kim, Hun Sik Kim, Jong Soo Lee, Hyun Jung Wang
  • Patent number: 9696606
    Abstract: A display device includes a light source generating light and a thin film transistor array panel including a pixel electrode and a common electrode. The display includes an upper panel and a quantum rod layer positioned between the thin film transistor array panel and the upper panel. The display includes an upper polarizer attached outside of the upper panel, in which the quantum rod layer includes quantum rods, and an arrangement direction of the quantum rods is controlled by an electric field generated by the pixel electrode and the common electrode, light is polarized according to the controlled arrangement direction, and the polarizer controls the transmission degree of the polarized light from the quantum rods according to the arrangement direction of the quantum rods.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: July 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Baek Hee Lee, Jong Hyuk Kang, Jae Byung Park, Hyun Min Cho, Sung-Jin Hong
  • Publication number: 20170176662
    Abstract: A liquid crystal display device, includes a display panel; a light guide plate to transfer light to the display panel; and a light source module on a side surface of the light guide plate to supply light to the light guide plate, the light source module including a light source to generate light; and a quantum dot unit between the light source and the light guide plate, the quantum dot unit extending along the side surface of the light guide plate and including a tube member filled with a resin including quantum dots, the tube member including a sealing part.
    Type: Application
    Filed: March 1, 2017
    Publication date: June 22, 2017
    Inventors: Baek Hee LEE, Hae Il PARK, Mun Ki SIM, Seon-Tae YOON
  • Publication number: 20170176661
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a display panel and a light assembly configured to provide light to the display panel, wherein the light assembly includes: a light-emitting device configured to emit first light; a light guide positioned to receive the first light; and a quantum dot sheet positioned on the light guide and positioned to receive the first light from the light guide, the quantum dot sheet configured to emit second light responsive to the received first light. The quantum dot sheet includes a nanophosphor and an antioxidant, and the antioxidant includes at least one compound selected from a group including a phenol-based compound, a phosphorus-based compound, and a sulfur-based compound.
    Type: Application
    Filed: November 11, 2016
    Publication date: June 22, 2017
    Inventors: Baek Hee LEE, Young Min KIM, Min Ki NAM, Kyoung Won PARK, Hae Il PARK
  • Patent number: 9651822
    Abstract: A method of manufacturing a quantum dot optical component is provided. By the method, a plurality of quantum dot lines are formed on a first substrate, an encapsulation member that encapsulates the quantum dot lines is formed on the first substrate, a second substrate is laminated on the encapsulation member, and the first and second substrates are cut into a plurality of quantum dot optical components each including at least one of the quantum dot lines.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mun-Ki Sim, Baek-Hee Lee, Young-Min Kim, Hak-Sun Kim, Nam-Seok Roh, Jae-Byung Park, Hae-Il Park
  • Publication number: 20170125740
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a first substrate, an insulating layer disposed over the first substrate and including a first inclined portion and a first electrode disposed over the insulating layer. The OLED display also includes a light-emitting element layer disposed over the first electrode, a second electrode disposed over the light-emitting element layer and a color conversion layer and a transmissive layer disposed over the second electrode. The first electrode includes a second inclined portion disposed over and inclined along the first inclined portion of the insulating layer.
    Type: Application
    Filed: October 26, 2016
    Publication date: May 4, 2017
    Inventors: Baek Hee Lee, Min Ki Nam, Hae II Park
  • Patent number: 9614015
    Abstract: A method for fabricating a display device includes forming a thin film transistor on a base substrate, forming a first electrode connected to the thin film transistor, forming a pixel defining layer overlapping a portion of the first electrode, such that the pixel defining layer exposes a portion of the first electrode and partitions pixel areas, forming a block copolymer layer on the first electrode and the pixel defining layer, patterning the block copolymer layer, etching the pixel defining layer by using the patterned block copolymer layer as a mask, such that an uneven pixel defining layer with a plurality of defining layer grooves is formed, and forming a light emitting layer on the first electrode and the uneven pixel defining layer.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: April 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seungwon Park, Baek Hee Lee, Manseob Choi, Minhyuck Kang, Moongyu Lee
  • Publication number: 20170090247
    Abstract: A color conversion panel includes a substrate and a red color conversion layer, a green color conversion layer, and a transmission layer which are disposed on the substrate. The transmission layer includes at least one of a pigment and a dye.
    Type: Application
    Filed: September 8, 2016
    Publication date: March 30, 2017
    Applicant: Samsung Display Co., Ltd.
    Inventors: Kwang Keun LEE, Young Min KIM, Hae Il PARK, Seon-Tae YOON, Baek Hee LEE, Kun Hee JO
  • Patent number: 9606400
    Abstract: A display panel includes: a plurality of pixels; and a first phase shifting layer and a second phase shifting layer, which overlap the pixels, where the first phase shifting layer and at least a portion of the second phase shifting layer are alternately arranged with each other, and a phase difference between light having a predetermined wavelength transmitted through the first phase shifting layer and light having the predetermined wavelength transmitted through the second phase shifting layer is approximately 180 degrees.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: March 28, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang Keun Lee, Young Min Kim, Jae Byung Park, Hae Il Park, Mun-Ki Sim, Seon-Tae Yoon, Baek Hee Lee, Jun Han Lee
  • Publication number: 20170075215
    Abstract: A photosensitive resin composition according to an exemplary embodiment of the present invention includes: a nanophosphor; a photo-polymerization initiator including an acetophenone-based initiator; and a photo-polymerization compound, wherein the photo-polymerization initiator further includes at least one among a thioxanthone-based initiator, an oxime-based initiator, and a benzophenone-based initiator.
    Type: Application
    Filed: February 22, 2016
    Publication date: March 16, 2017
    Inventors: Baek Hee LEE, Young Min KIM, Min Ki NAM, Hae Il Park, Seon-Tae YOON
  • Patent number: 9575228
    Abstract: A display device includes a display panel, a backlight unit and a color conversion layer. The color conversion layer includes light emitting particles and metal particles. The light emitting particles are configured to receive a first light and to generate a second light having a wavelength different from the first light. The metal particles are configured to receive the first light or the second light and to cause a surface plasmon resonance.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: February 21, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Uk Kim, Baek Hee Lee
  • Publication number: 20170037314
    Abstract: A method for manufacturing a quantum dot includes a method of manufacturing a quantum dot including heating a first mixture including a Group II precursor and a Group III precursor, adding an organic solvent to the first mixture and cooling the resultant under an inert gas atmosphere, adding a Group V precursor solution to the cooled resultant including the first mixture and the organic solvent to prepare a second mixture and heating the second mixture, and adding a mixture of a Group V precursor and a Group VI precursor to the second mixture to prepare a third mixture and allowing third mixture to react.
    Type: Application
    Filed: March 3, 2016
    Publication date: February 9, 2017
    Inventors: Min Ki NAM, Baek Hee LEE, Young Min KIM, Hae Il PARK, Dong-Hoon LEE
  • Patent number: 9536481
    Abstract: A liquid crystal display panel includes unit pixels including a first unit pixel and a second unit pixel, each of the first unit pixel and the second unit pixel including a first white area and first to third color areas, gate lines which extend in a first direction, cross the unit pixels and include a first gate line and a second gate line, data lines which extend in a second direction, and pixel electrodes which are electrically connected to the data lines and include first to seventh pixel electrodes, where the first to third pixel electrodes overlap the first to third color areas of the first unit pixel, respectively, the fourth to sixth pixel electrodes overlap the first to third color areas of the second unit pixel, respectively, and the seventh pixel electrode overlaps the first white areas of the first and second unit pixels.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: January 3, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seon-Tae Yoon, Jae-Byung Park, Hae-Il Park, Kwang-Keun Lee, Baek-Hee Lee, Mun-Ki Sim, Jun-Han Lee
  • Patent number: 9454027
    Abstract: A liquid crystal display (LCD) comprises a light source configured to provide a first light having a first wavelength, a first wavelength conversion layer configured to convert the first light into a second light having a second wavelength longer than the first wavelength, and a first optical shutter which overlaps the first wavelength conversion layer, is configured to adjust transmittance of the first light or the second light, and comprises liquid crystal molecules and dichromatic dye.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: September 27, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Baek Hee Lee, Nam Seok Roh, Hae Il Park, Mun Ki Sim
  • Publication number: 20160223869
    Abstract: A liquid crystal display that includes a substrate, a pixel electrode arranged on the substrate, a liquid crystal layer arranged in a microcavity on the pixel electrode, a roof layer supporting the microcavity and a capping layer arranged on the roof layer, wherein the capping layer includes a color conversion portion that includes a plurality of quantum dots distributed within a polymer layer. With the above structure, it is possible to reduce weight, thickness, cost, and processing time of the display by using only one substrate and by integrally including the quantum dots within a capping layer.
    Type: Application
    Filed: October 19, 2015
    Publication date: August 4, 2016
    Inventors: Mun-Ki SIM, Young Min KIM, Seon-Tae YOON, Baek Hee LEE, Min Ki NAM, Hae Il PARK, Jun Han LEE
  • Publication number: 20160216545
    Abstract: Provided is a liquid crystal display including: a substrate; a thin film transistor disposed on the substrate; a pixel electrode disposed on the thin film transistor and connected to the thin film transistor; a roof layer disposed on the pixel electrode to be spaced apart from the pixel electrode with a microcavity therebetween; a liquid crystal layer positioned in the microcavity; a polarizer; and a quantum rod layer in which a plurality of quantum rods is disposed, in which one of the polarizer and the quantum rod layer is disposed below the substrate and the other one is disposed on the roof layer.
    Type: Application
    Filed: June 11, 2015
    Publication date: July 28, 2016
    Inventors: Baek Hee LEE, Nam Seok ROH, Hae Il PARK
  • Publication number: 20160202548
    Abstract: Provided is a photosensitive resin composition including: a nanophosphor, a photopolymerization initiator, a photopolymerization compound, an antioxidant, and a solvent, in which the antioxidant includes one kind or more selected from phenol-based, phosphorus-based, and sulfur-based compounds.
    Type: Application
    Filed: January 8, 2016
    Publication date: July 14, 2016
    Inventors: Baek Hee Lee, Young Min Kim, Min Ki Nam, Hae Il Park