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).

  • Patent number: 9075240
    Abstract: A three-dimensional image display device includes: a display panel including a plurality of pixels each having red, green and blue sub-pixels, the red, green and blue sub-pixels alternately disposed along a horizontal direction and each of the red, green and blue sub-pixels disposed in a single line along a vertical direction; and a parallax barrier over the display panel, the parallax barrier including a plurality of open areas and a blocking area surrounding the plurality of open areas, the plurality of open areas alternating with the blocking area, and each of the plurality of open areas corresponding to each couple of the adjacent two sub-pixels.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: July 7, 2015
    Assignee: LG Display Co., Ltd.
    Inventor: Hyung-Ki Hong
  • Patent number: 8766878
    Abstract: A display device includes a display panel including first to fourth pixels in a first direction, wherein each of the first to fourth pixels has a first width in the first direction and a length more than the width and in a second direction; and a backlight unit including first and second line light regions supplying light to the display panel to display three-dimensional images, wherein the first and second line light regions have a slanted angle with respect to the second direction, wherein light from the first line light region comes to right and left eyes of a viewer through the first and second pixels, respectively, and light from the second light region comes to the right and left eyes through the third and fourth pixels, respectively, wherein the display device has K view points.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: July 1, 2014
    Assignee: LG Display Co. Ltd.
    Inventor: Hyung Ki Hong
  • Patent number: 8687049
    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: Grant
    Filed: December 21, 2006
    Date of Patent: April 1, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Hyung-Ki Hong
  • Patent number: 8614771
    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: Grant
    Filed: December 1, 2006
    Date of Patent: December 24, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung-Ki Hong, Byung-Joo Lee, Sung-Min Jung, Ju-Un Park, Hyun-Ho Shin
  • Patent number: 8614782
    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: Grant
    Filed: December 4, 2006
    Date of Patent: December 24, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Hyung-Ki Hong
  • Patent number: 8581815
    Abstract: Disclosed is a display device adapted to selectively display a normal image, a stereoscopic image, a multi-view image and a stereoscopic multi-view image is disclosed. The display device includes a liquid crystal panel displaying an image; a polarizer disposed on the liquid crystal panel; a liquid crystal lens disposed on the polarizer; and a polarizing member interposed between the liquid crystal lens and the liquid crystal panel, wherein an axis of light transmitted through the liquid crystal lens coincides with an optical axis of the polarizer. Accordingly, the display device can selectively display a normal image, a stereoscopic image, a multi-view image and a stereoscopic multi-view image, while improving the picture quality and the brightness.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: November 12, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung Ki Hong, Hee Jin Im
  • Patent number: 8410996
    Abstract: A display device includes a display panel including first to fourth pixels in a first direction, wherein each of the first to fourth pixels has a first width in the first direction and a length more than the width and in a second direction; and a backlight unit including first and second line light regions supplying light to the display panel to display three-dimensional images, wherein the first and second line light regions have a slanted angle with respect to the second direction, wherein light from the first line light region comes to right and left eyes of a viewer through the first and second pixels, respectively, and light from the second light region comes to the right and left eyes through the third and fourth pixels, respectively, wherein the display device has K view points.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: April 2, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Byung-Joo Lee, Hyung-Ki Hong
  • Patent number: 8411236
    Abstract: A transflective liquid crystal display device including a first substrate including a plurality of pixel regions, each of the pixel regions having a transmissive portion and a reflective portion, a gate line on the first substrate along a first direction, a data line along a second direction transverse to the first direction and crossing the gate line, an organic layer formed over the gate line and the data line, a switching device connected to the gate line and the data line, a transparent pixel electrode formed on the transmissive region and connected to the switching device, a reflective layer formed on the reflective region, the reflective layer having an open portion that exposes the pixel electrode on the transmissive region, wherein the reflective layer covers the gate line and the data line, and the organic layer covered by the reflective layer has a step profile at a side portion along a periphery of the organic layer, and a liquid crystal layer between the first substrate and a second substrate.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: April 2, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Hyung-Ki Hong
  • Patent number: 8339705
    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: Grant
    Filed: December 28, 2007
    Date of Patent: December 25, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung Ki Hong, Byung Joo Lee
  • Patent number: 8254026
    Abstract: A three-dimensional image display capable of reducing a difference between a resolution variation rate in a pixel column direction and a resolution variation rate in a pixel row direction and preventing a color separation phenomenon is disclosed. The three-dimensional image display includes a display panel in which n (n is a natural number) disparity images are displayed and the same disparity images are distributed and displayed in subpixels of the same color, and a lenticular sheet which divides travel paths of the disparity images using a plurality of lenticular lenses which are obliquely arranged in front of the display panel, and the long axes of the lenticular lenses are parallel to an extension line of the subpixels in which the same disparity images are displayed.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: August 28, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung Ki Hong, Byung Joo Lee, Hee Jin Im
  • Patent number: 8212977
    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: Grant
    Filed: December 12, 2006
    Date of Patent: July 3, 2012
    Assignee: LG Display Co. Ltd.
    Inventors: Mi Sook Nam, Hyung Ki Hong
  • Patent number: 8206309
    Abstract: The blood pressure monitoring apparatus and method are disclosed that can monitor a blood pressure of a subject using an electrocardiogram signal, a pulse wave signal and a body characteristic information of the subject, wherein the electrocardiogram signal and the pulse wave signal of the subject are monitored to remove a noise signal generated from monitoring of the pulse wave signal, allowing monitoring a precise blood pressure of the subject, and calculating the pulse wave analysis information using the monitored pulse wave signal, and using the electrocardiogram signal and the pulse wave signal to calculate a pulse transit time (PPT), and plugging a calculated pulse wave propagation time, pulse wave analysis information and body characteristic information of the subject into a predetermined regression equation to monitor the blood pressure.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: June 26, 2012
    Assignee: LG Electronics Inc.
    Inventors: Hyun Ho Oh, Bong Chu Shim, Youn Jae Lee, Kwy Ro Lee, Seong Moon Cho, Hyung Ki Hong
  • Patent number: 8199302
    Abstract: An IPS mode LCD includes first and second substrates. A thin film transistor and a color filter layer are formed on the first substrate. A common electrode and a pixel electrode are arranged in a zigzag configuration on the first substrate. A liquid crystal layer is disposed between the first and second substrates.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: June 12, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Hyung Ki Hong
  • Patent number: 8194000
    Abstract: Disclosed is a multi panel display device comprising, at least two liquid crystal panels connected to each other at positions adjacent to each other and respectively composed of image display portions and non-display portions; and image shift films disposed above each of the liquid crystal panels with being spaced therefrom by a specific distance and connected to each other at positions adjacent to each other respectively have first and second bevels disposed to be symmetrical to each other, wherein the first and second bevels are repeatedly formed to face the display panels.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: June 5, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Seung-Chul Lee, Hyung-Ki Hong, Ju-Un Park
  • Patent number: 8149368
    Abstract: The present invention discloses an array substrate for an IPS-LCD device. The IPS-LCD device according to the present invention implements a multi-domain for a liquid crystal layer. The liquid crystal molecules are aligned in various directions with respect to each different domain. Therefore, the different domains compensate for one another such that a color shift is prevented in spite of wide viewing angles. To form the multi-domain, the present invention provides an array substrate having divided common electrode or pixel electrode or both. In another aspect, to form the multi-domain, the present invention provides an array substrate having multi-bar shaped common and pixel electrodes. Each of the common and pixel electrodes has a transverse portion and a perpendicular portion. The transverse portions of the common and pixel electrodes induce a first domain, whereas the perpendicular portions of the common and pixel electrodes induce a second domain.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: April 3, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Jang-Jin Yoo, Hyung-Ki Hong, Yun-Bok Lee
  • Patent number: 8115715
    Abstract: A liquid crystal display device includes a liquid crystal panel including a liquid crystal layer; and a driving circuit including a data driver supplying a data voltage to the liquid crystal panel, wherein the liquid crystal panel displays white at a first data voltage and black at a second data voltage, and wherein a level of the first data voltage is higher than 0V and a level of the second data voltage is higher than the level of the first data voltage.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: February 14, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Hyung-Ki Hong
  • Patent number: 8026892
    Abstract: A liquid crystal display system is provided where a light irradiated onto each pixel provided at a liquid crystal display panel can be divided for each frame interval to selectively transmit and absorb the divided light. A liquid crystal display device includes a liquid crystal display panel and a timing controller that controls switching of a light transmission area and a light absorption area of the plurality of pixels for each frame interval. A liquid crystal shutter selectively absorbs and transmits a light irradiated onto each pixel for each frame interval. Electrode lines provided in a horizontal direction are symmetrically arranged at a front side of the liquid crystal display panel. The electrode lines makes a pair to be positioned at the front side of each pixel in the horizontal direction. A shutter driver alternately supplies a current to the pair of electrode lines positioned at the front side of each pixel in response to a control of the timing controller.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: September 27, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Hyung Ki Hong
  • Patent number: 8007109
    Abstract: A three-dimensional display device includes a display panel displaying first to nth partial images along a circumference; and an n-gonal pyramid mirror including first to nth mirrors at n side surfaces, respectively, of the n-gonal pyramid mirror, wherein the first to nth mirrors reflect the first to nth partial images, respectively, and wherein each of the first to nth mirrors substantially makes a 45 degree angle with the display panel.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: August 30, 2011
    Assignee: LG Display Co. Ltd.
    Inventor: Hyung-Ki Hong
  • Patent number: 7990498
    Abstract: A multi-view image display device adapted to display images different from each other using one screen of a display panel is disclosed. The multi-view image display device includes a display panel inclusive of a first color filter array having a first red sub-pixel, a first green sub-pixel and a first blue sub-pixel that constitute a first image, and a second red sub-pixel, a second green sub-pixel and a second blue sub-pixel that constitute a second image; and a color filter barrier substrate inclusive of a second color filter array that is separated from the display panel with a fixed distance and has red, green and blue color filters. The red color filter of the second color filter array corresponds to the first blue sub-pixel and the second green sub-pixel of the first color filter array. The green color filter of the second color filter array corresponds to the first red sub-pixel and the second blue sub-pixel of the first color filter array.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: August 2, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Hyung Ki Hong
  • Publication number: 20110157534
    Abstract: An IPS mode LCD includes first and second substrates. A thin film transistor and a color filter layer are formed on the first substrate. A common electrode and a pixel electrode are arranged in a zigzag configuration on the first substrate. A liquid crystal layer is disposed between the first and second substrates.
    Type: Application
    Filed: March 8, 2011
    Publication date: June 30, 2011
    Applicant: LG Display Co., Ltd.
    Inventor: Hyung Ki Hong