Patents by Inventor Kwang Keun Lee

Kwang Keun 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: 10249689
    Abstract: A color conversion panel according to an exemplary embodiment of the present invention includes: a substrate; a first color filter and a second color filter adjacent to the first color filter disposed on the substrate; a first color conversion layer disposed on the first color filter; and a second color conversion layer disposed on the second color filter, wherein each of the first color conversion layer and the second color conversion layer includes at least two quantum dots representing different colors, and wherein the first color filter displays a different color from the second color filter.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: April 2, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Uk Kim, Kwang Keun Lee, Hae Il Park
  • Patent number: 9989806
    Abstract: A color conversion panel includes: a substrate; a plurality of light emitting regions on the substrate; and a light blocking region between adjacent light emitting regions among the plurality of light emitting regions, wherein the light emitting regions respectively comprise: a color filter disposed on the substrate; and a color conversion layer comprising at least one of a phosphor or a quantum dot and a polymer layer overlapping with at least one of the color filter and the substrate, and the light blocking region comprises a partition comprising at least two overlapping color filters of different colors from each other.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: June 5, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Keun Lee, Dong-Uk Kim, Young Min Kim, Hae II Park, Seung-Jin Baek, Kun Hee Jo
  • Patent number: 9971198
    Abstract: A photoluminescent panel includes a lower substrate, an upper substrate facing the lower substrate, a liquid crystal layer disposed between the lower substrate and the upper substrate, and a color conversion layer disposed on the upper substrate. The color conversion layer includes a light excitation particle which absorbs light having a desired wavelength and emits excited light, and a scattering particle which scatters the excited light.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: May 15, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun-Min Cho, Dae-Hyun Kim, Jae-Woong Kang, Jae-Byung Park, Kwang-Keun Lee
  • Patent number: 9958735
    Abstract: A liquid crystal display according to an exemplary embodiment of the inventive concept includes a substrate; a thin film transistor positioned on the substrate; a pixel electrode connected to the thin film transistor; a roof layer positioned to face the pixel electrode; a liquid crystal layer positioned between the pixel electrode and the roof layer within a plurality of microcavities; a capping layer positioned adjacent to the microcavities; and a color conversion panel including a plurality of color conversion media layers on the roof layer and the capping layer, wherein the capping layer is positioned along a trench formed between the plurality of microcavities.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: May 1, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dae Ho Song, Jung Hyun Kwon, Kwang Keun Lee, You Young Jin
  • Patent number: 9869896
    Abstract: A display device, including a color conversion film, including a base film including a plurality of openings, the base film blocking light, and a color conversion layer in the openings, the color conversion layer including a pattern of different colors.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: January 16, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Uk Kim, Young Min Kim, Hae IL Park, Mun-Ki Sim, Kwang Keun Lee, Hyun Min Cho
  • Publication number: 20180006093
    Abstract: A color conversion panel according to an exemplary embodiment of the present invention includes: a substrate; a first color filter and a second color filter adjacent to the first color filter disposed on the substrate; a first color conversion layer disposed on the first color filter; and a second color conversion layer disposed on the second color filter, wherein each of the first color conversion layer and the second color conversion layer includes at least two quantum dots representing different colors, and wherein the first color filter displays a different color from the second color filter.
    Type: Application
    Filed: June 9, 2017
    Publication date: January 4, 2018
    Inventors: Dong-Uk KIM, Kwang Keun LEE, Hae Il PARK
  • Publication number: 20170343853
    Abstract: An exemplary embodiment of the present disclosure provides a color conversion panel including: a substrate; a polarization layer that is disposed on the substrate and includes a plurality of polarization patterns spaced apart from each other at a predetermined interval; and a color conversion layer that is disposed on the polarization layer, wherein at least one of the plurality of polarization patterns may include an external light interference layer disposed on the substrate and a reflection layer disposed on the external light interference layer.
    Type: Application
    Filed: April 21, 2017
    Publication date: November 30, 2017
    Inventors: Kwang Keun LEE, Jung Hyun KWON, Young Min KIM, Hae Il PARK, Moon Jung BAEK
  • Patent number: 9812076
    Abstract: A liquid crystal display including: a liquid crystal display including: a first polarizer, a second polarizer, a gate line, a data line, a thin film transistor, a pixel electrode, a first light blocking member, a second light blocking member, a liquid crystal layer, and a common electrode; a color conversion panel including a third light blocking member and a color conversion media layer, the color conversion panel being disposed on the liquid crystal panel; and a backlight assembly configured to supply light to the liquid crystal panel and the color conversion panel, wherein the first light blocking member overlaps the data line, wherein the second light blocking member is disposed between the first light blocking member and the third light blocking member, the third light blocking member overlapping the first light blocking member, and wherein the third light blocking member overlaps the second light blocking member.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: November 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Keun Lee, Jung Hyun Kwon, Young Min Kim, Min Ki Nam, Hae Il Park
  • Publication number: 20170315409
    Abstract: A photoluminescent panel includes a lower substrate, an upper substrate facing the lower substrate, a liquid crystal layer disposed between the lower substrate and the upper substrate, and a color conversion layer disposed on the upper substrate. The color conversion layer includes a light excitation particle which absorbs light having a desired wavelength and emits excited light, and a scattering particle which scatters the excited light.
    Type: Application
    Filed: July 20, 2017
    Publication date: November 2, 2017
    Inventors: Hyun-Min CHO, Dae-Hyun KIM, Jae-Woong KANG, Jae-Byung PARK, Kwang-Keun LEE
  • Publication number: 20170307932
    Abstract: A color conversion panel includes a substrate, a light blocking layer on the substrate, and color conversion layers and a transmission layer on the substrate, the color conversion layers including a quantum dot, wherein the light blocking layer includes a first sub-light blocking layer overlapping the color conversion layers and the transmission layer, and a second sub-light blocking layer between adjacent ones of the color conversion layers and the transmission layer, and wherein each of the first sub-light blocking layer and the second sub-light blocking layer includes an external light absorption layer on the substrate, and a reflection layer on the external light absorption layer.
    Type: Application
    Filed: April 20, 2017
    Publication date: October 26, 2017
    Inventors: Kwang Keun LEE, Young Min KIM, Hae Il PARK, Moon Jung BAEK, Seon-Tae YOON, Jun Han LEE
  • Patent number: 9753326
    Abstract: A photoluminescent panel includes a lower substrate, an upper substrate facing the lower substrate, a liquid crystal layer disposed between the lower substrate and the upper substrate, and a color conversion layer disposed on the upper substrate. The color conversion layer includes a light excitation particle which absorbs light having a desired wavelength and emits excited light, and a scattering particle which scatters the excited light.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: September 5, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun-Min Cho, Dae-Hyun Kim, Jae-Woong Kang, Jae-Byung Park, Kwang-Keun Lee
  • Patent number: 9690133
    Abstract: A display substrate includes a base substrate, a color filter layer and a retarder layer. The base substrate includes a first sub pixel area, a second sub pixel area and a third sub pixel area. The color filer layer is disposed on a front surface of the base substrate, and includes at least one of a magenta color filter, a cyan color filter and a yellow color filter in the first sub pixel area and the second sub pixel area and a white color filter in the third sub pixel area. The retarder layer is disposed on a rear surface of the base substrate opposite to the front surface of the base substrate. The retarder layer is configured to polarize light in the first sub pixel area and the second sub pixel area to form a first polarized light. The retarder layer is further configured to polarize the light in the third sub pixel area to form a second polarized light, the second polarized light being different from the first polarized light. Thus, a driving speed of a display apparatus may be decreased.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: June 27, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang-Keun Lee, Seon-Tae Yoon, Hyun-Min Cho, Jae-Byung Park, Hae-Il Park
  • Publication number: 20170153368
    Abstract: A color conversion panel includes a substrate, a plurality of color conversion layers and a transmission layer on the substrate, a capping layer on the plurality of color conversion layers and the transmission layer, and a filter layer on the capping layer.
    Type: Application
    Filed: October 25, 2016
    Publication date: June 1, 2017
    Inventors: Seon-Tae Yoon, Hae Il Park, Jung Hyun Kwon, Kwang Keun Lee, Jun Han Lee
  • Patent number: 9666141
    Abstract: A display apparatus includes a display panel including a first subpixel having a first primary color, a second subpixel having a second primary color; and a transparent subpixel; a panel driver which sets grayscale data of the first subpixel, the second subpixel and the transparent subpixel; a light source part which provides light to the display panel, where the light source comprises a first light source and a second light source having colors different from each other; and a light source driver which turns on the first light source during a first subframe, turns on the second light source during a second subframe, and turns on the first light source during a third subframe, and a first frame comprises the first subframe, the second subframe and the third subframe.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: May 30, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Byung Park, Seon-Tae Yoon, Jae-Woong Kang, Hae-Il Park, Sung-Tae Shin, Mun-Ki Sim, Kwang-Keun Lee, Hyun-Min Cho
  • Publication number: 20170090243
    Abstract: A liquid crystal display according to an exemplary embodiment of the inventive concept includes a substrate; a thin film transistor positioned on the substrate; a pixel electrode connected to the thin film transistor; a roof layer positioned to face the pixel electrode; a liquid crystal layer positioned between the pixel electrode and the roof layer within a plurality of microcavities; a capping layer positioned adjacent to the microcavities; and a color conversion panel including a plurality of color conversion media layers on the roof layer and the capping layer, wherein the capping layer is positioned along a trench formed between the plurality of microcavities.
    Type: Application
    Filed: September 6, 2016
    Publication date: March 30, 2017
    Inventors: Dae Ho SONG, Jung Hyun KWON, Kwang Keun LEE, You Young JIN
  • 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
  • Patent number: 9599856
    Abstract: A display device having a first substrate, a second substrate above and facing the first substrate, a light-amount adjusting layer interposed between the first substrate and the second substrate, a plurality of color conversion layers respectively defining a plurality of pixel regions, a wavelength conversion layer disposed on a bottom surface of the color conversion layers, and a backlight unit disposed under the first substrate. The light-amount adjusting layer comprises liquid crystal molecules.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: March 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Keun Lee, Young Min Kim, Min Ki Nam, Hae Il Park, Seon Tae Yoon
  • Publication number: 20170076678
    Abstract: A color conversion panel includes: a substrate; a plurality of light emitting regions on the substrate; and a light blocking region between adjacent light emitting regions among the plurality of light emitting regions, wherein the light emitting regions respectively comprise: a color filter disposed on the substrate; and a color conversion layer comprising at least one of a phosphor or a quantum dot and a polymer layer overlapping with at least one of the color filter and the substrate, and the light blocking region comprises a partition comprising at least two overlapping color filters of different colors from each other.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 16, 2017
    Inventors: Kwang Keun Lee, Dong-Uk Kim, Young Min Kim, Hae Il Park, Seung-Jin Baek, Kun Hee Jo
  • Patent number: 9552755
    Abstract: A display apparatus includes a light source configured to generate lights having a plurality of colors, the light source configured to be driven in a field sequential color driving method; and a display panel configured to receive the lights to display an image, display the colors at a first area in a first order, and display the colors at a second area different from the first area in a second order different from the first order.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: January 24, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Byung Park, Kwang-Keun Lee, Nam-Seok Roh, Seon-Tae Yoon