Patents by Inventor Ahn-Ho Jee

Ahn-Ho Jee 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: 11823608
    Abstract: A display device includes a substrate, pixels on the substrate, and a driving circuit unit connected to the pixels through data lines. The driving circuit unit includes a thermistor having a resistance value which changes according to a temperature of the substrate and a register group in which set values of a dimming ratio corresponding to the temperature are stored, the driving circuit unit controls the pixels to emit light with a first luminance based on the dimming ratio when the temperature based on the resistance value is less than a minimum temperature, the driving circuit unit controls the pixels to emit light with a second luminance based on the dimming ratio when the temperature is greater than the minimum temperature and less than a maximum temperature, and the driving circuit unit stops image display of the pixels when the temperature is greater than the maximum temperature.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: November 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ahn Ho Jee, Sang Woo Park
  • Publication number: 20230215322
    Abstract: A display device includes a substrate, pixels on the substrate, and a driving circuit unit connected to the pixels through data lines. The driving circuit unit includes a thermistor having a resistance value which changes according to a temperature of the substrate and a register group in which set values of a dimming ratio corresponding to the temperature are stored, the driving circuit unit controls the pixels to emit light with a first luminance based on the dimming ratio when the temperature based on the resistance value is less than a minimum temperature, the driving circuit unit controls the pixels to emit light with a second luminance based on the dimming ratio when the temperature is greater than the minimum temperature and less than a maximum temperature, and the driving circuit unit stops image display of the pixels when the temperature is greater than the maximum temperature.
    Type: Application
    Filed: August 4, 2022
    Publication date: July 6, 2023
    Inventors: Ahn Ho JEE, Sang Woo PARK
  • Patent number: 10395572
    Abstract: A display device includes a display panel including a display panel including pixels, a timing controller configured to calculate an on-pixel ratio of input image data provided from an external component, and a data driver configured to select a first gamma correction value from among a plurality of gamma correction values based on the on-pixel ratio, and configured to generate a data signal based on the input image data and the first gamma correction value.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: August 27, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ahn-Ho Jee
  • Publication number: 20170162094
    Abstract: A display device includes a display panel including a display panel including pixels, a timing controller configured to calculate an on-pixel ratio of input image data provided from an external component, and a data driver configured to select a first gamma correction value from among a plurality of gamma correction values based on the on-pixel ratio, and configured to generate a data signal based on the input image data and the first gamma correction value.
    Type: Application
    Filed: November 17, 2016
    Publication date: June 8, 2017
    Inventor: Ahn-Ho Jee
  • Patent number: 9274374
    Abstract: A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: March 1, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ahn-Ho Jee, Kun-Bin Lee, Dong-Hwan Kim, Hyeong-Cheol Ahn
  • Publication number: 20140313454
    Abstract: A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 23, 2014
    Inventors: Ahn-Ho JEE, Kun-Bin LEE, Dong-Hwan KIM, Hyeong-Cheol AHN
  • Patent number: 8786795
    Abstract: A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: July 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ahn-Ho Jee, Kun-Bin Lee, Dong-Hwan Kim, Hyeong-Cheol Ahn
  • Publication number: 20100079709
    Abstract: The present invention relates to a liquid crystal display. The liquid crystal display includes a liquid crystal panel having a first and a second side, a first polarizer arranged on the first side of the liquid crystal panel, and a backlight unit arranged on the first side of the liquid crystal panel, the first polarizer being arranged between the liquid crystal panel and the backlight unit, a second polarizer arranged on the second side of the liquid crystal panel, and a first half-wave plate arranged on the second side of the liquid crystal panel, the second polarizer arranged between the liquid crystal panel and the first half-wave plate. A slow axis of the first half-wave plate meets a transmission axis of the second polarizer at a first angle ?1 so that the first half-wave plate rotates the polarization axis of polarized light transmitted from the second polarizer.
    Type: Application
    Filed: July 6, 2009
    Publication date: April 1, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-Sang Park, Dong-Hwan Kim, Ahn-Ho Jee, Chang-Kil Lee, Chang-Wook Kang
  • Publication number: 20100026927
    Abstract: A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.
    Type: Application
    Filed: October 14, 2009
    Publication date: February 4, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ahn-Ho JEE, Kun-Bin LEE, Dong-Hwan KIM, Hyeong-Cheol AHN
  • Patent number: 7630023
    Abstract: A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: December 8, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ahn-Ho Jee, Kun-Bin Lee, Dong-Hwan Kim, Hyeong-Cheol Ahn
  • Publication number: 20080195841
    Abstract: Disclosed is a driving apparatus of a display device having a plurality of pixels. The driving apparatus includes a signal generator that generates a shutdown signal, first and second register units that store register values, a gate driver that transmits gate signals to the pixels, a data driver that transmits data voltages to the pixels, and a signal controller that controls the gate driver and the data driver based on the register values of the first and second register units. An initialization of the register values stored in the register units is controlled based on the shutdown signal. The first register unit and the second register unit have the same construction.
    Type: Application
    Filed: November 28, 2007
    Publication date: August 14, 2008
    Inventors: Ahn-Ho Jee, Dong-Hwan Kim, Dong-Hwan Lee, Tae-Hun Kim
  • Publication number: 20080024480
    Abstract: A display panel includes a light-providing unit, a display panel and a panel driving unit. The display panel selectively displays an image corresponding to a first driving mode and a second driving mode using light from the light-providing unit. The panel driving unit includes a power supply, a data driver and a gate controller. The power supply includes a first power supply and a second power supply selectively outputting a first power voltage and a second power voltage corresponding to the first driving mode and the second driving mode. The second power voltage is smaller than the first power voltage. The data driver and the gate controller respectively output a data voltage and a gate controlling signal to the display panel corresponding to the driving mode.
    Type: Application
    Filed: June 21, 2007
    Publication date: January 31, 2008
    Inventors: Ahn-Ho Jee, Dong-Hwan Lee, Chul-Hwan Lee, Young-Man Kim
  • Publication number: 20080012819
    Abstract: A gate driving unit connected to odd-numbered gate lines and a gate driving unit connected to even-numbered gate lines are sequentially operated, and a common voltage signal is inverted when the operation states of the two gate driving units are changed, thereby minimizing a number of changes in the voltage level of the common voltage signal supplied to a display panel during one frame, reducing power consumption of the display device, and allowing pixels of the display panel to perform line inversion.
    Type: Application
    Filed: March 23, 2007
    Publication date: January 17, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Chul Hwan Lee, Ahn Ho Jee, Dong Hwan Lee, Jin Young Choi, Yong Han Park, Tae Kyung Lee
  • Publication number: 20070102805
    Abstract: A chip type electric device and a display device including the same is capable of preventing a bonding defect caused by a deviation in height between external electrodes. The chip type electric device includes a body in which a plurality of dielectric layers is stacked, a contact hole penetrating at least one of the plurality of dielectric layers, pairs of connection electrodes buried within the contact hole, and pairs of external electrodes connected to the pairs of connection electrodes and formed on a back surface of the body.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 10, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Hyung Guel KIM, Kun Bin LEE, Dong Hwan KIM, Ahn Ho JEE, Hyeong Cheol AHN
  • Publication number: 20060125760
    Abstract: A method of driving a display device is provided, including storing drive data blocks in a drive data block unit, fetching the drive data blocks from the drive data block unit, storing the drive data blocks in data block setting registers, driving the display device using the drive data blocks stored in the data block setting registers, wherein the drive data blocks contain data used in configuring, controlling, sequencing, setting or initializing the display device.
    Type: Application
    Filed: December 9, 2005
    Publication date: June 15, 2006
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ahn-Ho Jee, Kun-Bin Lee, Deuk-Soo Kim, Hyeong-Cheol Ahn
  • Publication number: 20060110949
    Abstract: A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.
    Type: Application
    Filed: November 2, 2005
    Publication date: May 25, 2006
    Inventors: Ahn-Ho Jee, Kun-Bin Lee, Dong-Hwan Kim, Hyeong-Cheol Ahn