Patents by Inventor Ik-Soo Lee

Ik-Soo 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).

  • Publication number: 20150187287
    Abstract: A field sequential display apparatus includes a backlight including a plurality of light sources which emits light of different colors, and a grayscale representation unit including a plurality of sub-pixels, in which the plurality of light sources includes a first light source which emits light of a first color, the plurality of sub-pixels includes a first type sub-pixel covered with a color filter of a second color, which is different from the first color, and the first type sub-pixel displays a third color, which is different from the first and second colors, using the light emitted from the first light source and passed through the color filter of the second color.
    Type: Application
    Filed: May 29, 2014
    Publication date: July 2, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yu-Kwan KIM, Se-Ah KWON, Ki-Soo PARK, Ik-Soo LEE, Jong-Hak HWANG
  • Publication number: 20150170590
    Abstract: A liquid crystal display and a method for driving the same. The liquid crystal display includes: gate lines arranged in a row direction; data lines arranged in a column direction; and subpixels arranged in basic units of eight subpixels. Each subpixel is each connected to one of the gate lines and one of the data lines, and the subpixels are continuously arranged along a row and are arranged in a matrix. In the basic units, polarities between adjacent subpixels from a first subpixel to a fourth subpixel along the row are opposite to each other, polarities between adjacent subpixels from a fifth subpixel to an eighth subpixel along the row are opposite to each other, and polarities of the fourth subpixel and the fifth subpixel are the same.
    Type: Application
    Filed: July 10, 2014
    Publication date: June 18, 2015
    Inventors: Kuk-Hwan AHN, Jai-Hyun KOH, Jin Pil KIM, Kyung Su LEE, Ik Soo LEE, Nam Jae LIM
  • Patent number: 9052089
    Abstract: A display panel includes a pixel group having first through fourth pixels disposed in a two-by-two matrix form. Each of the first through fourth pixels includes at least three subpixels. The first and second pixels have the same subpixel layout. The third pixel has a different subpixel layout from the first pixel. The fourth pixel has a different subpixel layout from the first and third pixels.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: June 9, 2015
    Assignee: SAMSUNG DISLAY CO., LTD.
    Inventors: Se Ah Kwon, Jai-Hyun Koh, Ik-Soo Lee, Kuk-Hwan Ahn
  • Patent number: 8928685
    Abstract: A method of processing an image signal includes: converting a source image signal into an image signal corresponding to a color space for a color gamut mapping; reducing a color gamut of the image signal; and mapping the image signal corresponding to colors within the reduced color gamut into an image signal corresponding to colors within a display color gamut, wherein the colors of the display color gamut are displayed by a display panel.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: January 6, 2015
    Assignees: Samsung Display Co., Ltd., Korea Polytechnic University Industry-Academy Corporation Foundation
    Inventors: Heen-dol Kim, Ik-Soo Lee, Bong-Hyun You, Jai-Hyun Koh, Kuk-Hwan Ahn, Moon-Cheol Kim
  • Publication number: 20140306983
    Abstract: A data processing device, which processes and provides data to a plurality of logical pixels of a display device, includes: a data analysis part which analyzes information of text, color, line or edge in each of the data; and a data compensation part which compensates text data corresponding to a logical pixel which does not express text color among the data having the information of text based on the information analyzed in the data analysis part, where each of the logical pixels of the display device comprises at least one of red, green, blue and optional color sub-pixels.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 16, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sungjae PARK, Jai-Hyun KOH, Se Ah KWON, Seokyun SON, IK SOO LEE
  • Publication number: 20140232624
    Abstract: A display device includes a display panel including gate lines which extends in a first direction, data lines which extends in a second direction, and sub-pixels connected to corresponding gate and data lines, a gate driver configured to drive the gate lines, a data driver configured to apply a gray-scale voltage to the data lines, and a timing controller configured to generate and apply control signals to the gate and data drivers, where a unit pixel of the display panel is defined by an even number of adjacent sub-pixels among the sub-pixels, each of the data lines is connected to corresponding sub-pixels of the sub-pixels, the data driver inverts a polarity of the gray-scale voltage every two data lines, and two adjacent sub-pixels in the unit pixel are applied with the gray-scale voltages having different polarities.
    Type: Application
    Filed: July 3, 2013
    Publication date: August 21, 2014
    Inventors: Jinpil KIM, Jai-Hyun KOH, Namjae LIM, IK SOO LEE, Heendol KIM, Se Ah KWON, Kisoo PARK, JONGHAK HWANG
  • Publication number: 20140204321
    Abstract: The present invention provides a display device including a first block including a first primary color pixel and a second primary color pixel having substantially a same area, a second block alternatingly disposed with the first block along the first direction, the second block including a third primary color pixel, a fourth primary color pixel and a white pixel. The first block and the second block have substantially a same area and the third primary color pixel has an area wider than the fourth primary color pixel and the white color pixel.
    Type: Application
    Filed: December 10, 2013
    Publication date: July 24, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jai-Hyun KOH, Se Ah KWON, Heen Dol KIM, Kuk-Hwan AHN, Ik Soo LEE
  • Publication number: 20140071174
    Abstract: An image driving method includes receiving basic image data including a first set of primary colors. The basic image data is transformed into output image data including a second set of primary colors. Luminance values of the second set of primary colors of the output image data is reduced to compensate the luminance values of the second set of primary colors of the output image data when a luminance value of the first set of primary color of the basic image data is saturated. Image distortion is thereby minimized or prevented.
    Type: Application
    Filed: January 22, 2013
    Publication date: March 13, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: HEEN-DOL KIM, JAI-HYUN KOH, IK-SOO LEE, JIN-PIL KIM
  • Publication number: 20140055330
    Abstract: A pixels group includes first to fourth pixels disposed in a 2*2 matrix. Each of the first to fourth pixels includes first to third sub-pixels. Each of the first sub-pixels of first to fourth pixels has a first color. The second sub-pixel of first pixel and the second sub-pixel of fourth pixel have a second color. The third sub-pixel of first pixel and the third sub-pixel of fourth pixel have a third color. The second sub-pixel of second pixel and the second sub-pixel of third pixel have a fourth color. The third sub-pixel of second pixel and the third sub-pixel of third pixel has a fifth color.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 27, 2014
    Inventors: Sung-Jae PARK, Se-Ah KWON, Ki-Soo PARK, Ik-Soo LEE, Jong-Hak HWANG
  • Publication number: 20140029250
    Abstract: A display panel includes a pixel group having first through fourth pixels disposed in a two-by-two matrix form. Each of the first through fourth pixels includes at least three subpixels. The first and second pixels have the same subpixel layout. The third pixel has a different subpixel layout from the first pixel. The fourth pixel has a different subpixel layout from the first and third pixels.
    Type: Application
    Filed: February 21, 2013
    Publication date: January 30, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Se Ah KWON, Jai-Hyun Koh, Ik-Soo Lee, Kuk-Hwan Ahn
  • Publication number: 20120306905
    Abstract: A method of processing an image signal includes: converting a source image signal into an image signal corresponding to a color space for a color gamut mapping; reducing a color gamut of the image signal; and mapping the image signal corresponding to colors within the reduced color gamut into an image signal corresponding to colors within a display color gamut, wherein the colors of the display color gamut are displayed by a display panel.
    Type: Application
    Filed: December 20, 2011
    Publication date: December 6, 2012
    Applicants: Korea Polytechnic University Industry-Academy Corporation Foundation, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Heen-dol KIM, Ik-Soo LEE, Bong-Hyun YOU, Jai-Hyun KOH, Kuk-Hwan AHN, Moon-Cheol KIM
  • Patent number: 8053968
    Abstract: A light source module includes a power supply plate, a light emitting chip, and a body mold. The light emitting chip is disposed on the power supply plate to lean to one side with respect to a center of the power supply plate along a first direction and electrically connected to the power supply plate. The body mold is connected with the power supply plate to expose the light emitting chip. Therefore, a thickness of a backlight assembly employing the light source module may be reduced.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: November 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Gyun Woo, Young-Bee Chu, Ik-Soo Lee
  • Patent number: 8007158
    Abstract: A liquid crystal display with low manufacturing cost, small dark area and compact exterior is provided by utilizing a plurality of differently radiating light emitting diodes at different angles. The liquid crystal of present invention includes a thin film transistor panel for displaying image, a backlight assembly for providing light to the thin film transistor panel with a plurality of light emitting diodes with different light radiation angles and a light guiding plate, and a frame unit for encompassing the thin film transistor panel and the backlight assembly. The light emitting diodes are placed either at the mid-point of light incident surface or the corner portion of the light guiding plate.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: August 30, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Gyun Woo, Young-Bee Chu, Ik-Soo Lee
  • Patent number: 7821594
    Abstract: A receiving container includes first to third sidewalls, first and second buffer recesses and a supporting portion. The first sidewall faces shorter first sides of the lower and upper substrates. The second and third sidewalls are connected to end portions of the first sidewall and face each other. The first buffer recesses are disposed in the first and second sidewalls at a region where the first and second sidewalls meet each other, and in the first and third sidewalls where the first and third sidewalls meet each other. The supporting portion is extended from inner surfaces of the first, second and third sidewalls and supports edge portions of the lower substrate. The second buffer recesses are disposed in the supporting portion and at a region of the supporting portion, which corresponds to corners of the lower substrate.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: October 26, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ik-Soo Lee
  • Patent number: 7817220
    Abstract: A liquid crystal display having a receiving member, and a backlight unit wherein the receiving member includes a mold frame having a part mounting unit that has a predetermined receiving space, and a chassis fastened to the mold frame which includes a reinforcing tab in contact with and reinforcing the part mounting unit.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 19, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chung Woo Suh, Young Bee Chu, Ik Soo Lee
  • Patent number: 7759683
    Abstract: The present invention relates to a white light emitting diode comprising a blue light emitting diode chip; a green light emitting diode chip; and a molding member that encapsulates the blue light emitting diode chip and the green light emitting diode chip, the molding member containing a red fluorescent substance.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: July 20, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ik Soo Lee
  • Patent number: 7760285
    Abstract: A backlight unit and a liquid crystal display device having the same are disclosed. The backlight unit includes a light source, a light guide plate guiding light emitted from the light source, an optical sheet arranged on the light guide plate, a mold frame receiving the light guide plate and the optical sheet, a printed circuit board (“PCB”) outlet in the mold frame, a printed circuit board (“PCB”) received in the PCB outlet, and a PCB adhesive sheet for adhering the PCB to the mold frame.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: July 20, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Jun Park, Ik Soo Lee
  • Patent number: 7719628
    Abstract: A backlight assembly includes a light providing unit, an optical sheet, and a mold frame. The light providing unit generates light. The optical sheet has a main body disposed on the light providing unit and a sheet-guiding portion protruding outward from the main body. The mold frame has a frame shape to receive the light providing unit and the optical sheet and includes a sheet-guiding recess and a securing protrusion adjacent to at least one side of the sheet-guiding recess and protruding with respect to an upper surface of the optical sheet to prevent misalignment of the optical sheet. The sheet-guiding recess receives the sheet-guiding portion.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: May 18, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chung-Woo Suh, Young-Bee Chu, Ik-Soo Lee, Ji-Hwan Jang, Seung-Gyun Woo
  • Patent number: 7710513
    Abstract: A method for illuminating a liquid crystal display device, a back-light assembly for performing the same and a liquid crystal display device using the same can improve the front luminance and production yield. Lights from a lamp is incident to a LCD panel side, which are then primarily diffused for a uniformity of the luminous flux of the incident lights. The luminous flux of the primarily diffused lights is condensed with respect to a first orientation component on a plane in parallel with the LCD panel, and then partially and secondarily diffused for extending a view angle of pixels of the LCD panel. After the luminous flux of the secondarily diffused lights is condensed with respect to a second orientation component perpendicular to the first orientation on the parallel plane, the condensed lights are illuminated onto the LCD panel.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: May 4, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-Hwan Lee, Ik-Soo Lee, Kyu-Seok Kim, Jong-Ho Won
  • Patent number: RE44227
    Abstract: A backlight unit for a display device includes a mold frame and a light guide panel. The mold frame includes a groove having at least one rounded corner. The light guide panel is on the mold frame and includes a light guide projection in the groove, having at least one rounded corner corresponding to the at least one rounded corner of the mold frame groove.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: May 21, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ik-Soo Lee