Patents by Inventor Hyung-Ki Hong

Hyung-Ki Hong 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: 20080218433
    Abstract: An optical sheet for three-dimensional images and a three-dimensional image display device using the same, are discussed. According to an embodiment, the three-dimensional image display device includes a display unit to display two-dimensional images using unit pixels each including at least three colors of sub-pixels, and an optical sheet to convert the two-dimensional images into a plurality of different three-dimensional images, and the neighboring three-dimensional images are overlapped with each other by a predetermined range. With the above described configuration, the curved lenses are tilted to provide neighboring viewers with three-dimensional images overlapped with each other by 15% to 60%. As a result, a ratio of the horizontal and vertical display resolutions of the three-dimensional images can be equal to a ratio of the horizontal and vertical display resolutions of the two-dimensional images, and the quality of three-dimensional images can be improved.
    Type: Application
    Filed: December 28, 2007
    Publication date: September 11, 2008
    Inventors: Hyung Ki HONG, Byung Joo Lee
  • Publication number: 20080214942
    Abstract: Disclosed are an apparatus and method for measuring a blood pressure capable of enhancing accuracy and reliability for a blood pressure. According to the apparatus and method, a blood pressure is obtained by using a pulse transit time (PTT) calculated based on a pulse wave measured with a minimized error, a subject's body information, pulse analysis information, and environment information together measured when measuring the pulse wave.
    Type: Application
    Filed: February 7, 2008
    Publication date: September 4, 2008
    Applicant: LG Electronics Inc.
    Inventors: Hyun-Ho OH, Bong-Chu Shim, Gyoung-Soo Kim, Yun-Hee Ku, Seong-Moon Cho, Hyung-Ki Hong
  • Patent number: 7391486
    Abstract: In a liquid crystal display device, a field sequential liquid crystal display device includes a liquid crystal panel having an upper substrate, a lower substrate and a liquid crystal layer therebetween; a backlight device under the liquid crystal panel for irradiating light to the liquid crystal panel and having three color light sources; and an image signal processor controlling a sequential lighting order and combination of the three color light sources.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: June 24, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Hyung-Ki Hong
  • Patent number: 7372524
    Abstract: An LCD includes a first substrate on which a TFT and a color filter are formed, a second substrate spaced apart from the first substrate, and a liquid crystal layer interposed between the first and second substrates. A polarizer attaches over a lower surface of the first substrate, for changing a natural light into a linearly polarized light, and another polarizer attaches over an upper surface of the first substrate and has a transmission axis parallel to the first polarizer.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: May 13, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Hyung Ki Hong
  • Patent number: 7365729
    Abstract: In a liquid crystal display device, a field sequential liquid crystal display device includes a liquid crystal panel having an upper substrate, a lower substrate and a liquid crystal layer therebetween; a backlight device under the liquid crystal panel for irradiating light to the liquid crystal panel and having three color light sources; and an image signal processor controlling a sequential lighting order and combination of the three color light sources.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: April 29, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Hyung-Ki Hong
  • Patent number: 7355661
    Abstract: A liquid crystal display module includes a light source that generates light. A light guide panel has a first refractive index. Light from the light source propagates through the light guide panel. A low refractive index layer is disposed on the light guide panel and has a second refractive index which is lower than that of the light guide panel. A transmissive liquid crystal display panel is disposed on the upper part of the lower refractive layer.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: April 8, 2008
    Assignee: LG. Philips LCD. Co., Ltd
    Inventor: Hyung Ki Hong
  • Patent number: 7349036
    Abstract: A liquid crystal display storage device includes a lower electrode extending along a first direction, the lower electrode includes first and second opposing edges, an insulating layer on the lower electrode, and an upper electrode on the insulating layer, wherein a first area of the upper electrode that overlaps the first and second edges of the lower electrode is less than a second area of the upper electrode that extends past the first and second edges of the lower electrode.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: March 25, 2008
    Assignee: LG. Philips LCD Co., Ltd.
    Inventor: Hyung-Ki Hong
  • Patent number: 7336325
    Abstract: A method and apparatus for driving a liquid crystal display (LCD) panel having pixels arranged in a matrix pattern, wherein each pixel includes two sub-pixels capable of transmitting complementary colors, includes a light source array having first to third light sources and a data driver for applying data signals to the LCD panel during first and second sub-frames of the LCD panel, wherein the first and second sub-frames constitute a single frame of the LCD panel. Two of the first to third light sources may be activated during each sub-frame to emit light to the liquid crystal display panel, wherein a full color image is realized in only two sub-frames.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: February 26, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Hyung Ki Hong
  • Publication number: 20080013002
    Abstract: A lenticular lens includes an upper plate including an upper transparent electrode and having a plurality of lens surfaces having a curved surface shape; an upper alignment film on the lens surfaces; a lower plate having a lower transparent electrode and a lower alignment film; and a liquid crystal layer between the upper plate and the lower plate to be driven by an electric field applied by the upper transparent electrode and the lower transparent electrode.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 17, 2008
    Inventors: Hyung Ki Hong, Dong Kyu Yoon
  • Publication number: 20080002112
    Abstract: A liquid crystal display (LCD) comprises: a first substrate and a second substrate; a liquid crystal layer between the first and the second substrates; and a fluorescent color filter responding to light over the first substrate, thereby the fluorescent color filter supplies the light to the liquid crystal layer. A method for fabricating a LCD includes: preparing first and second substrates; depositing fluorescent material over the first substrate to form a color filter, the fluorescent material emitting the visible light in responding to the ULTRAVIOLET rays; and forming a liquid crystal layer between the first and second substrates.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 3, 2008
    Inventors: Byung-Joo Lee, Sung-Min Jung, Ju-Un Park, Hyung-Ki Hong
  • Publication number: 20070296896
    Abstract: An image display device includes a display panel, a first substrate over the display panel, a plurality of first electrodes on the first substrate, a plurality of second electrodes alternately arranged with the plurality of first electrodes, a second substrate facing the first substrate, a replica layer on the second substrate and having a concave pattern of half-cylinder shape, the concave pattern facing the second electrode, and a liquid crystal layer in the concave pattern.
    Type: Application
    Filed: December 1, 2006
    Publication date: December 27, 2007
    Inventors: Hyung-Ki Hong, Byung-Joo Lee, Sung-Min Jung, Ju-Un Park, Hyun-Ho Shin
  • Publication number: 20070296808
    Abstract: A display device includes a display panel for displaying a plurality of images, a viewing-zone generator for producing a plurality of viewing zones corresponding to the plurality of images and a first reflector at a first side of the display panel for reflecting a first image of the plurality of images to one of the plurality of viewing zones that corresponds to a second image of the plurality of images.
    Type: Application
    Filed: December 21, 2006
    Publication date: December 27, 2007
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventor: Hyung-Ki Hong
  • Publication number: 20070296900
    Abstract: An image display device includes a display panel, and a barrier including a plurality of transmissive portions and a plurality of blocking portions on the display panel, wherein the plurality of transmissive portions and the plurality of blocking portions are arranged in a matrix, wherein 3Nth rows and (3N-1)th rows include the plurality of transmissive portions and the plurality of blocking portions, N being a positive integer, (3N-2)th rows include the plurality of transmissive portions excluding the plurality of blocking portions, , and the transmissive and blocking portions are alternately arranged.
    Type: Application
    Filed: December 26, 2006
    Publication date: December 27, 2007
    Applicant: L.G.PHILIPS LCD CO., LTD.
    Inventor: Hyung-Ki Hong
  • Publication number: 20070296911
    Abstract: A liquid crystal lens includes: a first substrate; a second substrate disposed facing the first substrate and separated from the first substrate by a predetermined distance; a first electrode on an inner surface of the first substrate; a second electrode on an inner surface of the second substrate, the second electrode including a first opening that has a first width; a third electrode on the second electrode, the third electrode including a second opening that has a second width; and a liquid crystal layer disposed between the first and third electrodes.
    Type: Application
    Filed: December 4, 2006
    Publication date: December 27, 2007
    Inventor: Hyung-Ki Hong
  • Publication number: 20070296644
    Abstract: A three-dimensional display device includes a plurality of projection portions to project a plurality of images, respectively, a plurality of wedge-shaped light guide plates corresponding to the plurality of projection portions, respectively, to emit the plurality of images, respectively, and a plurality of directional diffuser screen corresponding to the plurality of wedge-shaped light guide plates, respectively, to diffuse or transmit the plurality of images.
    Type: Application
    Filed: December 11, 2006
    Publication date: December 27, 2007
    Inventors: Hyung-Ki Hong, Byung-Joo Lee, Sung-Min Jung, Jun-Un Park
  • Publication number: 20070291054
    Abstract: A three-dimensional image display device including a display device having odd-numbered sub-pixel columns for displaying a left image and even-numbered sub-pixel columns for displaying a right image; a first set of sub-pixels disposed in a same first horizontal line of adjacent odd-numbered sub-pixel columns have different colors; a second set of sub-pixels disposed in a same second horizontal line of adjacent even-numbered sub-pixels column have different colors; a screen positioned away from the display device for displaying the right and left images; and a slit barrier disposed between the display device and the screen for screening light from the display device.
    Type: Application
    Filed: November 21, 2006
    Publication date: December 20, 2007
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Hyun Ho Shin, Hyung Ki Hong, Juun Park
  • Patent number: 7268765
    Abstract: A field sequential liquid crystal display device having a liquid crystal panel, a back light having multiple light sources (Red, Green and Blue) under the liquid crystal panel, and a signal processing circuit that controls the luminances of the light sources based on frame-based image signal data. The signal processing circuit decides luminance values (Ra, Ga, and Ba) to be displayed during sub-frames, and further decides the luminances of the light sources and/or the transmissivities of the liquid crystal during each sub-frame so as to produce the average illumination in the image signal data.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: September 11, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Moo-Jong Lim, Hyung-Ki Hong
  • Patent number: 7253856
    Abstract: A liquid crystal display device includes first and second substrates facing and spaced apart from each other, a common electrode on an inner surface of the first substrate, a gate line on an inner surface of the second substrate, a data line crossing the gate line, a switching device connected to the gate and data lines, a first pixel electrode connected to the switching device and spaced apart from the data line, a black matrix covering the data line and having a first portion width extending from a center line of the data line to a first edge of the black matrix, and a second portion width different from the first portion width extending from the center line of the data line to a second edge of the black matrix opposite to the first edge of the black matrix, and a liquid crystal material layer interposed between the first pixel electrode and common electrode.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: August 7, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Gi-Hong Kim, Hyung-Ki Hong
  • Patent number: 7250957
    Abstract: A liquid crystal display device having an improved viewing angle that prevents degradation of image quality. The device includes a timing control unit arranged to receive image data and a control signal from a graphic processing unit through an interface unit, a gate driver integrated circuit receiving a control signal from the timing control unit, a gate on/off power signal from a DC/DC converter, the gate driver integrated circuit supplies a gate pad unit of a liquid crystal display panel with a scan signal, a halftone gray driving mode converting unit implementing halftone gray by receiving the image data and the control signal from the timing control unit, and a data driver integrated circuit supplying a data pad unit of the liquid crystal display panel with image data by receiving new image data from the halftone gray driving mode converting unit.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: July 31, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Hyung-Ki Hong
  • Publication number: 20070153195
    Abstract: An in-plane switching mode liquid crystal display device includes: a lower substrate and an upper substrate which face each other; a gate line and a data line on the lower substrate such that the gate line and the data line cross each other to define a pixel region that is divided into a transmissive region and a reflective region; a thin film transistor arranged at a crossing of the gate line and the data line; a reflective plate in the reflective region; a pixel electrode and a common electrode arranged in an alternating pattern at the pixel region; a retardation layer arranged on the upper substrate to correspond to the reflective region; a liquid crystal layer between the upper substrate and the lower substrate; and a first polarizing plate and a second polarizing plate at outer surfaces of the lower substrate and the upper substrate, respectively.
    Type: Application
    Filed: December 12, 2006
    Publication date: July 5, 2007
    Inventors: Mi Sook Nam, Hyung Ki Hong