Patents by Inventor Se-Hong Park

Se-Hong Park 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: 8860909
    Abstract: Disclosed is a transparent display device in which the total refection efficiency of a light guide plate supplying light to a liquid crystal display panel is enhanced thereby enhancing luminance in the image mode, and the transparent display device may include a liquid crystal display panel; a light source disposed at one side of a lower portion of the liquid crystal display panel to emit light; a first polarizing plate for polarizing the light emitted from the light source; a light guide plate disposed at a lower portion of the liquid crystal display panel to totally reflect the light polarized to an axis by the first polarizing plate to a lateral surface thereof and supply to the liquid crystal display panel, and transmit natural light entered from a lower direction therethrough; a plurality of air layers formed inside the light guide plate to totally reflect incident light; and a second polarizing plate disposed at an upper portion of the liquid crystal display panel to control the amount of polarized ligh
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: October 14, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Eung-Do Kim, Se-Hong Park
  • Patent number: 8848133
    Abstract: The present disclosure relates to a hybrid type liquid crystal display device. The present disclosure suggests a hybrid type liquid crystal display device comprising a liquid crystal display panel having a display area; and a window area defined within the display area, wherein an image disposed at outside of the liquid crystal display panel is shown in front of the liquid crystal panel through the window area. The present disclosure suggests a hybrid type display device in which main video data is represented using the liquid crystal display device, an additional image represented on an external screen is shown through the liquid crystal display device, or the external image can be shown by overlapping with the main video data of the liquid crystal display device, as needed.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: September 30, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Se-Hong Park, Eung-Do Kim, Jong-Sin Park
  • Publication number: 20140285750
    Abstract: A display device includes a liquid crystal display panel that varies a phase of polarized light via liquid crystal molecules, wherein second recessed patterns of a second light guide plate are directly faced with first recessed patterns of a first light guide plate to form a first empty space, and wherein first flat surfaces of the first light guide plate are directly faced with second flat surfaces of the second light guide plate to form a second empty space narrower than the first empty space.
    Type: Application
    Filed: June 5, 2014
    Publication date: September 25, 2014
    Inventors: Se Hong PARK, Jae Seok PARK, Kyung Ha LEE
  • Patent number: 8836889
    Abstract: Disclosed is a transparent display device including a light guide plate formed with a plurality of concave patterns at the lower surface thereof to totally reflect polarized light entered in a lateral direction while transmitting natural light entered from a lower direction therethrough; a light source disposed in a lateral direction of the light guide plate to emit visible light including first and second polarized lights; a first polarizing plate disposed at a lateral portion of the light guide plate to transmit either one of the first and second polarized lights through the light guide plate; a liquid crystal panel for driving liquid crystals to change the phase of the polarized light; and a second polarizing plate for controlling an amount of the polarized light according to the changed phase of the polarized light.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: September 16, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Se-Hong Park, Jong-Sin Park
  • Patent number: 8780294
    Abstract: A display device includes a liquid crystal display panel that varies a phase of polarized light via liquid crystal molecules, and having first and second polarizing plates respectively disposed on opposite sides of the liquid crystal display panel; a first light guide plate including a surface having a plurality of recessed patterns, to reflect light input through a side surface of the first light guide plate, and to output two-dimensional light towards the liquid crystal display panel; and a second light guide plate including a surface having a plurality of recessed patterns, the plurality of recessed patterns of the second guide plate facing the plurality of recessed patterns of the first light guide plate.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: July 15, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Se Hong Park, Jae Seok Park, Kyung Ha Lee
  • Patent number: 8687150
    Abstract: Disclosed is a liquid crystal display module that improves luminance of a liquid crystal panel by enhancing a light transmittance. The liquid crystal display module comprises a liquid crystal panel with plural unit pixels for converting incident light into colored light, wherein each unit pixel includes red (R), green (G), blue (B), and white (W) sub-pixels; a light source for supplying light to the liquid crystal panel; an optical member for guiding light emitted from the light source toward a frontal direction of the liquid crystal panel; and a polarizing means including a polarization area for polarizing the light outgoing from the liquid crystal panel, and a hole for transmitting the light therethrough.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: April 1, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Sin Park, Eung Do Kim, Se Hong Park, Kyung Ha Lee
  • Patent number: 8659723
    Abstract: A liquid crystal display module is disclosed, which facilitates to improve luminance of a liquid crystal panel by enhancing a light transmittance, the liquid crystal display module comprising a liquid crystal panel with plural unit pixels, wherein each unit pixel includes red(R), green(G), blue(B), and white(W) sub-pixels, for converting incident light into colored light; a light source for supplying light to the liquid crystal panel; a light-guiding plate for changing a horizontal direction of incident light from the light source into a vertical direction; and a polarizing plate including a polarization area for polarizing the light outgoing from the liquid crystal panel, and a hole for transmitting the light therethrough.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: February 25, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Sin Park, Eung Do Kim, Se Hong Park, Kyung Ha Lee
  • Patent number: 8638411
    Abstract: Disclosed is a transparent liquid crystal display device provided with a compensation film of a liquid crystal panel to change the polarizing state of light in an image mode thereby enhancing a viewing angle characteristic, and the transparent liquid crystal display device may include a liquid crystal panel; a light source disposed at one side of a lower portion of the liquid crystal panel to emit light; a first polarizing plate for polarizing the light emitted from the light source; a light guide plate disposed at a lower portion of the liquid crystal panel to totally reflect the light polarized to an axis by the first polarizing plate to a lateral surface thereof and supply to the liquid crystal panel, and transmit natural light entered from a lower direction therethrough; a second polarizing plate disposed at an upper portion of the liquid crystal panel to control the amount of polarized light transmitting the liquid crystal panel; and a first positive A-film disposed at a lower portion of the liquid cryst
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: January 28, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Se-Hong Park, Eung-Do Kim, Jong-Sin Park
  • Patent number: 8456593
    Abstract: Disclosed is a transparent display device for enhancing image quality, and the transparent display device may include liquid crystal display panel; a light source disposed at one side of a lower portion of the liquid crystal display panel to emit light; a first polarizing plate to first-polarize the light emitted from the light source; a light guide plate at a lower portion of the liquid crystal display panel to receive the light first-polarized by the first polarizing plate through a lateral surface thereof, a pattern being formed on the upper surface of the light guide plate to output the incident first-polarized light in a lower direction of the light guide plate; a second polarizing plate at an upper portion of the liquid crystal display panel to control the amount of light transmitting the liquid crystal display panel; and a first optical sheet at a lower portion of the light guide plate to reflect the first-polarized light received from the light guide plate, and transmit a second polarization component
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: June 4, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Se-Hong Park, Eung-Do Kim, Jong-Sin Park
  • Patent number: 8406529
    Abstract: Disclosed is a method for evaluating a moving image resolution capable of quantitatively evaluating a moving image resolution for a display device. The method comprises displaying a test pattern on a screen, and moving the test pattern in a predetermined direction; obtaining an image of the test pattern on the screen; removing noise from the image; detecting edge regions of the image having noise removed therefrom; emphasizing the detected edge regions; scanning the emphasized edge regions by rotating any reference line a plurality of times, the reference line passing through a center point of the emphasized edge regions; and analyzing a pattern of the scanned result, and comparing it with the original test pattern.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: March 26, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Se-Hong Park
  • Patent number: 8314902
    Abstract: Disclosed is a transparent display device that includes a LCD panel; a light source at one side of a lower portion of the LCD panel to emit light; a first polarizing plate polarizing light emitted from the light source; a light guide plate at a lower portion of the LCD panel to totally reflect the light polarized to an axis by the first polarizing plate to a lateral surface and supply to the LCD panel, and transmit natural light from a lower direction; a second polarizing plate at an upper portion of the LCD panel to control the amount of polarized light passing through the LCD panel; and an optical sheet at a lower portion of the light guide plate to change the polarized state of a first polarized light from the light guide plate and reflect the light, and transmit a second polarized component from the lower portion therethrough.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: November 20, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Eung-Do Kim, Se-Hong Park
  • Publication number: 20110299010
    Abstract: Disclosed is a transparent liquid crystal display device provided with a compensation film of a liquid crystal panel to change the polarizing state of light in an image mode thereby enhancing a viewing angle characteristic, and the transparent liquid crystal display device may include a liquid crystal panel; a light source disposed at one side of a lower portion of the liquid crystal panel to emit light; a first polarizing plate for polarizing the light emitted from the light source; a light guide plate disposed at a lower portion of the liquid crystal panel to totally reflect the light polarized to an axis by the first polarizing plate to a lateral surface thereof and supply to the liquid crystal panel, and transmit natural light entered from a lower direction therethrough; a second polarizing plate disposed at an upper portion of the liquid crystal panel to control the amount of polarized light transmitting the liquid crystal panel; and a first positive A-film disposed at a lower portion of the liquid cryst
    Type: Application
    Filed: December 1, 2010
    Publication date: December 8, 2011
    Inventors: Se-Hong Park, Eung-Do Kim, Jong-Sin Park
  • Publication number: 20110261289
    Abstract: The present disclosure relates to a hybrid type liquid crystal display device. The present disclosure suggests a hybrid type liquid crystal display device comprising a liquid crystal display panel having a display area; and a window area defined within the display area, wherein an image disposed at outside of the liquid crystal display panel is shown in front of the liquid crystal panel through the window area. The present disclosure suggests a hybrid type display device in which main video data is represented using the liquid crystal display device, an additional image represented on an external screen is shown through the liquid crystal display device, or the external image can be shown by overlapping with the main video data of the liquid crystal display device, as needed.
    Type: Application
    Filed: December 17, 2010
    Publication date: October 27, 2011
    Inventors: Se-Hong PARK, Eung-Do Kim, Jong-Sin Park
  • Publication number: 20110261291
    Abstract: Disclosed is a transparent display device for enhancing image quality, and the transparent display device may include liquid crystal display panel; a light source disposed at one side of a lower portion of the liquid crystal display panel to emit light; a first polarizing plate to first-polarize the light emitted from the light source; a light guide plate at a lower portion of the liquid crystal display panel to receive the light first-polarized by the first polarizing plate through a lateral surface thereof, a pattern being formed on the upper surface of the light guide plate to output the incident first-polarized light in a lower direction of the light guide plate; a second polarizing plate at an upper portion of the liquid crystal display panel to control the amount of light transmitting the liquid crystal display panel; and a first optical sheet at a lower portion of the light guide plate to reflect the first-polarized light received from the light guide plate, and transmit a second polarization component
    Type: Application
    Filed: December 29, 2010
    Publication date: October 27, 2011
    Inventors: Se-Hong PARK, Eung-Do Kim, Jong-Sin Park
  • Publication number: 20110141399
    Abstract: Disclosed is a transparent display device that includes a LCD panel; a light source at one side of a lower portion of the LCD panel to emit light; a first polarizing plate polarizing light emitted from the light source; a light guide plate at a lower portion of the LCD panel to totally reflect the light polarized to an axis by the first polarizing plate to a lateral surface and supply to the LCD panel, and transmit natural light from a lower direction; a second polarizing plate at an upper portion of the LCD panel to control the amount of polarized light passing through the LCD panel; and an optical sheet at a lower portion of the light guide plate to change the polarized state of a first polarized light from the light guide plate and reflect the light, and transmit a second polarized component from the lower portion therethrough.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 16, 2011
    Inventors: Eung-Do KIM, Se-Hong Park
  • Publication number: 20110141388
    Abstract: A transparent display device for enhancing optical transmissivity in a transparent mode, is discussed. The transparent display device may include a liquid crystal panel; a light source disposed at one side of a lower portion of the liquid crystal panel to emit light; a first polarizing plate for polarizing the light emitted from the light source; a light guide plate disposed at a lower portion of the liquid crystal panel to totally reflect the light polarized to an axis by the first polarizing plate to a lateral surface thereof and supply to the liquid crystal panel, and transmit natural light entered from a lower direction therethrough; and a second polarizing plate disposed at an upper portion of the liquid crystal panel to control the amount of polarized light passing through the liquid crystal panel.
    Type: Application
    Filed: December 7, 2010
    Publication date: June 16, 2011
    Inventors: Jong-Sin PARK, Eung-Do Kim, Se-Hong Park, Kyung-Ha Lee
  • Publication number: 20110141394
    Abstract: Disclosed is a transparent display device in which the total refection efficiency of a light guide plate supplying light to a liquid crystal display panel is enhanced thereby enhancing luminance in the image mode, and the transparent display device may include a liquid crystal display panel; a light source disposed at one side of a lower portion of the liquid crystal display panel to emit light; a first polarizing plate for polarizing the light emitted from the light source; a light guide plate disposed at a lower portion of the liquid crystal display panel to totally reflect the light polarized to an axis by the first polarizing plate to a lateral surface thereof and supply to the liquid crystal display panel, and transmit natural light entered from a lower direction therethrough; a plurality of air layers formed inside the light guide plate to totally reflect incident light; and a second polarizing plate disposed at an upper portion of the liquid crystal display panel to control the amount of polarized ligh
    Type: Application
    Filed: December 13, 2010
    Publication date: June 16, 2011
    Inventors: Eung-Do KIM, Se-Hong Park
  • Publication number: 20110134367
    Abstract: Disclosed is a liquid crystal display device capable of enhancing luminance thereof, the device including a liquid crystal display panel for displaying an image; a light source for emitting light; a light guide plate for guiding the light emitted from the light source; an optical sheet above the light guide plate to enhance the efficiency of light input from the light guide plate; a polarization sheet above the optical sheet, the polarization sheet polarizing the light supplied to the liquid crystal display panel into a first polarizing direction and converting the light having a second polarizing component into the light having a first polarizing component to supply the light having the converted polarizing component into the liquid crystal display panel; and a polarizer onto the liquid crystal display panel to adjust transmittance of light transmitted through the liquid crystal display panel.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 9, 2011
    Inventors: Se-Hong Park, Eung-Do Kim, Jong-Sin Park
  • Publication number: 20110128475
    Abstract: Disclosed is a liquid crystal display module that improves luminance of a liquid crystal panel by enhancing a light transmittance. The liquid crystal display module comprises a liquid crystal panel with plural unit pixels for converting incident light into colored light, wherein each unit pixel includes red (R), green (G), blue (B), and white (W) sub-pixels; a light source for supplying light to the liquid crystal panel; an optical member for guiding light emitted from the light source toward a frontal direction of the liquid crystal panel; and a polarizing means including a polarization area for polarizing the light outgoing from the liquid crystal panel, and a hole for transmitting the light therethrough.
    Type: Application
    Filed: September 9, 2010
    Publication date: June 2, 2011
    Inventors: Jong Sin PARK, Eung Do Kim, Se Hong Park, Kyung Ha Lee
  • Publication number: 20110128476
    Abstract: A liquid crystal display module is disclosed, which facilitates to improve luminance of a liquid crystal panel by enhancing a light transmittance, the liquid crystal display module comprising a liquid crystal panel with plural unit pixels, wherein each unit pixel includes red(R), green(G), blue(B), and white(W) sub-pixels, for converting incident light into colored light; a light source for supplying light to the liquid crystal panel; a light-guiding plate for changing a horizontal direction of incident light from the light source into a vertical direction; and a polarizing plate including a polarization area for polarizing the light outgoing from the liquid crystal panel, and a hole for transmitting the light therethrough.
    Type: Application
    Filed: November 8, 2010
    Publication date: June 2, 2011
    Inventors: Jong Sin Park, Eung Do Kim, Se Hong Park, Kyung Ha Lee