Patents by Inventor Seon-Tae Yoon

Seon-Tae Yoon 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: 20160061417
    Abstract: Aspects according to one or more embodiments of the present invention are directed toward a quantum dot sheet, and a light unit and a liquid crystal display including the same, having desirable features of being capable of increasing light efficiency. According to exemplary embodiments of the present invention, it is possible to increase light efficiency by forming a quantum dot sheet including quantum dots in a pattern in which multiple layers having different refractive indexes are repeatedly stacked.
    Type: Application
    Filed: January 30, 2015
    Publication date: March 3, 2016
    Inventors: Dong-Uk Kim, Hae Il Park, Seon-Tae Yoon
  • Publication number: 20160062024
    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: January 30, 2015
    Publication date: March 3, 2016
    Inventors: Baek Hee LEE, Hae Il PARK, Mun Ki SIM, Seon-Tae YOON
  • Publication number: 20160049122
    Abstract: A display apparatus includes a display panel, a display panel driver, a light source part and a local dimming driver. The display panel includes a first subpixel having a first primary color, a second subpixel having a second primary color and a transparent subpixel. The display panel driver is configured to set grayscales of the first subpixel, the second subpixel and the transparent subpixel. The light source part includes a plurality of light emitting blocks configured to provide light to the display panel. The light emitting block includes a first light source configured to generate a light of a mixed color and a second light source configured to generate a light of a third primary color. The local dimming driver is configured to alternately turn on and off the first light source and the second light source and configured to independently drive the light emitting blocks.
    Type: Application
    Filed: January 21, 2015
    Publication date: February 18, 2016
    Inventors: Seon-Tae Yoon, Kwang-Keun Lee, Jung-Hyun Kwon, Hae-Il Park
  • Publication number: 20160041430
    Abstract: A display device includes: a first substrate; a second substrate facing the first substrate; a light-amount adjusting layer interposed between the first substrate and the second substrate; and a backlight unit disposed under the first substrate, wherein the second substrate includes a plurality of color conversion layers respectively disposed on a plurality of pixel regions, the color conversion layer includes a partition wall; and a phosphor disposed on areas defined by the partition wall, and the color conversion layer includes an air layer between the second substrate and the phosphor.
    Type: Application
    Filed: April 21, 2015
    Publication date: February 11, 2016
    Inventors: KWANG KEUN LEE, JUNG HYUN KWON, SEON TAE YOON, HAE IL PARK
  • Publication number: 20160033823
    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: Application
    Filed: January 29, 2015
    Publication date: February 4, 2016
    Inventors: Kwang Keun LEE, Young Min KIM, Min Ki NAM, Hae Il PARK, Seon Tae YOON
  • Patent number: 9239458
    Abstract: A display device includes a light source unit that emits a first light with a first wavelength, an optical filter that converts the first light to a second light, and an optical shutter that transmits or reflects the first light or the second light.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: January 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon-Tae Yoon, Jong Hyuk Kang, Jae Byung Park, Mun-Ki Sim, Dae Hyun Kim, Minki Nam, Haeil Park, Dong-Hoon Lee, Hyun Min Cho
  • Publication number: 20150286097
    Abstract: A display device includes a display panel including pixels arranged in a matrix form along first and second directions crossing each other, a backlight unit configured to generate and provide a first light to the display panel, and a color conversion layer. Each pixel includes first and sub-pixels spaced apart from each other. The color conversion layer includes a first sub-color conversion layer overlapping the first sub-pixel and configured to receive the first light and to emit the second light having a wavelength different from that of the first light, and a second sub-color conversion layer overlapping the second sub-pixel, spaced apart from the first sub-color conversion layer and configured to receive the first light and to emit the first light. In a plan view, areas of the first and second sub-color conversion layers are different from each other.
    Type: Application
    Filed: October 24, 2014
    Publication date: October 8, 2015
    Inventors: Kwangkeun LEE, DONG-UK KIM, YOUNGMIN KIM, MIN KI NAM, HAEIL PARK, Seon-Tae YOON
  • Publication number: 20150243933
    Abstract: An organic light-emitting display apparatus includes: a substrate including a first surface and a second surface opposite to each other; an organic emission unit disposed on the first surface of the substrate and including: an emission region configured to emit light; and a first transmission region configured to transmit external light; an encapsulation unit joined to the first surface of the substrate, the encapsulating unit configured to seal the organic emission unit from external air; a first optical layer configured to delay a phase of the external light; and a second functional layer configured to linearly polarize the external light, wherein the second function layer is disposed farther from the organic emission unit than the first functional layer and includes a second transmission region corresponding to the first transmission region.
    Type: Application
    Filed: September 24, 2014
    Publication date: August 27, 2015
    Inventors: Jun-Han LEE, Mun-Ki SIM, Baek-Hee LEE, Jae-Byung PARK, Seon-Tae YOON, Kwang-Keun LEE, Hyun-Min CHO
  • Publication number: 20150228232
    Abstract: A display apparatus includes: a display panel including first to third sub pixels which receive a first grayscale data, a second grayscale data and a third grayscale data, respectively; a light source part which provides light to the display panel and sequentially turns on first and second light sources, which emit a first light and a second light having a color different from the first light, respectively; and a color conversion layer including a first photoluminescence part which is excited by the first light to emit light having a first primary color, a second photoluminescence part which is excited by the first light to emit light having a second primary color, and a third photoluminescence part which is excited by the first light to emit light having a third primary color, where the first to third photoluminescence parts overlap the first to third sub pixels, respectively.
    Type: Application
    Filed: August 11, 2014
    Publication date: August 13, 2015
    Inventors: Kwang-Keun LEE, Hae-IL PARK, Seon-Tae YOON
  • Publication number: 20150221260
    Abstract: A display device includes: a display panel configured with rows of pixels, each row pixels including a first color pixel, a second color pixel, and a third color pixel; and a backlight assembly configured to supply light to the display panel, in which: a data signal is alternately applied to a first color pixel disposed in an odd row on an odd frame, and to another first color pixel disposed in an even row on an even frame, a data signal is alternately applied to a second color pixel disposed in the odd row on the odd frame, and to another second color pixel disposed in the even row on the even frame, a data signal is applied to a third color pixel on both frames, and colors of light supplied to the display panel on the odd frame and the even frame are different from each other.
    Type: Application
    Filed: July 22, 2014
    Publication date: August 6, 2015
    Inventors: Jae Hyun CHO, Jae Byung PARK, Se Young SONG, Seon-Tae YOON, Hyun Min CHO, Sung-Jin HONG
  • Publication number: 20150194104
    Abstract: A method of driving a liquid crystal display apparatus includes gamma-correcting first and second gray scale data using a first gamma value to generate first and second luminance data; generating sub luminance data based on a smaller value of the first and second luminance data; correcting the sub luminance data using a second gamma value larger than the first gamma value to generate sub correction luminance data; correcting the first luminance data using the sub or second luminance data to generate first correction luminance data; correcting the second luminance data using the sub or first luminance data to generate second correction luminance data; performing inverse gamma correction on the first, second and sub correction luminance data using the first gamma value to generate first, second and sub correction gray scale data; and providing first to third pixels with the first, second, and sub correction gray scale data.
    Type: Application
    Filed: July 8, 2014
    Publication date: July 9, 2015
    Inventors: Kwangkeun Lee, Hyun Min Cho, Jae Byung Park, Jaehyun Cho, Sung-Jin Hong, Seon-Tae Yoon
  • Publication number: 20150194117
    Abstract: A liquid crystal display apparatus includes a gamma mapping unit configured to receive red, green, and blue image information from an external device. During the first field, the gamma mapping unit generates first to third data signals for controlling the first to third pixels based on the red, green, and blue image information in synchronization with the backlight unit. During the second field, the gamma mapping unit generates fourth and fifth data signals for controlling the first and second pixels based on at least one of the first to third data signals or based on the red, green, and blue image information. As the quantity of the second color light leaked is adjusted through the first and second color filters in the second field, a color reproduction range and brightness of the liquid crystal display panel are improved. Thus, the display quality of the liquid crystal display apparatus is improved.
    Type: Application
    Filed: August 28, 2014
    Publication date: July 9, 2015
    Inventors: Hyun Min Cho, Jae Byung Park, Seon-Tae Yoon, Kwangkeun Lee, Jaehyun Cho
  • Publication number: 20150187301
    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: Application
    Filed: July 23, 2014
    Publication date: July 2, 2015
    Applicant: 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
  • Publication number: 20150185546
    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: Application
    Filed: May 27, 2014
    Publication date: July 2, 2015
    Applicant: 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: 9041994
    Abstract: A display apparatus includes a first substrate, a second substrate facing the first substrate, and a plurality of pixels including a first pixel. The first substrate includes first openings through which a light is transmitted. The pixels are disposed on at least one of the first substrate and the second substrate. The first pixel includes a first flexible electrode, a second flexible electrode, and a shutter including second openings and disposed between the first and second flexible electrodes. The first flexible electrode receives a first voltage. The second flexible electrode receives a second voltage different from the first voltage. The shutter receives a third voltage. The shutter moves to the first flexible electrode or the second flexible electrode according to a level of the third voltage, thereby controlling the position of the second openings relative to the first openings to control the transmission of the light.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: May 26, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seon-Tae Yoon, Jae Byung Park, Hyun Min Cho, Dong-Hoon Lee, Mun-Ki Sim
  • Publication number: 20150131011
    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: Application
    Filed: April 8, 2014
    Publication date: May 14, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Kwang-Keun LEE, Seon-Tae YOON, Hyun-Min CHO, Jae-Byung PARK, Hae-Il PARK
  • Publication number: 20150116378
    Abstract: A display device including a display panel driving unit configured to convert an image signal provided from an external device into a data signal such that an image is displayed on a display panel, and to output a first light control signal and a second light control signal. A backlight unit is configured to provide the display panel with a first color light and a second color light different from the first color light in response to the first light control signal and the second control signal. The display panel driving unit is further configured to determine a pulse width of each of the first light control signal and the second light control signal according to a color characteristic of the image signal.
    Type: Application
    Filed: April 9, 2014
    Publication date: April 30, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: HYUN MIN CHO, KWANGKEUN LEE, JAE BYUNG PARK, JAEHYUN CHO, SEON-TAE YOON, HYUNDEOK IM, SUNG-JIN HONG
  • Publication number: 20150042700
    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: Application
    Filed: April 7, 2014
    Publication date: February 12, 2015
    Applicant: SMASUNG DISPLAY CO., LTD.
    Inventors: Jae-Byung Park, Kwang-Keun Lee, Nam-Seok Roh, Seon-Tae Yoon
  • Patent number: 8947466
    Abstract: A display panel includes first and second substrates. The first substrate includes a light blocking layer having an opening through the light blocking layer. The opening is arranged in a pixel area. The second substrate includes first and second transistors, first and second driving electrodes, and a shutter. The first transistor is turned on in response to a low level control voltage. The second transistor is electrically connected to the first transistor and is turned on in response to receiving a low level voltage from the first transistor. The first driving electrode is electrically connected to the first transistor, and the second driving electrode is electrically connected to the second transistor. The shutter exposes or covers the opening by moving to the first driving electrode or the second driving electrode according to the relative levels of voltages applied to the first and second driving electrodes.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: February 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon-Tae Yoon, Ki-Soo Park, Jae-Byung Park, Mun-Ki Sim
  • Patent number: 8941787
    Abstract: A 3D image display device includes: a backlight unit including a first color light source and a second color light source, which are alternately turned on; a display panel on a front side of the backlight unit and including a pixel, where the pixel includes a first subpixel including a first color filter and a second subpixel including a second color filter; a patterned circular polarizer on a front side of the display panel, extending substantially in a first direction, and including a first circular polarization part and a second circular polarization part having widths substantially the same as widths of the first subpixel and the second subpixel, respectively; and glasses including a left lens and a right lens, where each of the left lens and the right lens includes a plurality of circular polarization patterns and a shutter glass panel which turns on and off each circular polarization pattern.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: January 27, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Keun Lee, Mun-Ki Sim, Seon-Tae Yoon, Jae Byung Park, Hae Il Park, Hyun Min Cho