Patents by Inventor Hee Jung Hong

Hee Jung 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: 11961478
    Abstract: Disclosed are a display panel and a display device including the same according to an embodiment. A display panel according to the embodiment includes: a display area in which a plurality of first pixels are arranged at a first pixels per inch (PPI); and a sensing area in which a plurality of second pixels are arranged at a second PPI that is lower than the first PPI, wherein the first pixels of the display area and the second pixels of the sensing area are arranged adjacent to each other at a boundary between the display area and the sensing area, the second pixel includes red, green, and blue sub-pixels, and at least one of the red and green sub-pixels of the second pixel is arranged closest to the first pixel.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: April 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Min Sung Kang, Hee Jung Hong, Seong Ho Cho
  • Publication number: 20230087905
    Abstract: Disclosed are a display panel and a display device including the same according to an embodiment. A display panel according to the embodiment includes: a display area in which a plurality of first pixels are arranged at a first pixels per inch (PPI); and a sensing area in which a plurality of second pixels are arranged at a second PPI that is lower than the first PPI, wherein the first pixels of the display area and the second pixels of the sensing area are arranged adjacent to each other at a boundary between the display area and the sensing area, the second pixel includes red, green, and blue sub-pixels, and at least one of the red and green sub-pixels of the second pixel is arranged closest to the first pixel.
    Type: Application
    Filed: November 29, 2022
    Publication date: March 23, 2023
    Inventors: Min Sung KANG, Hee Jung HONG, Seong Ho CHO
  • Patent number: 11551615
    Abstract: Disclosed are a display panel and a display device including the same according to an embodiment. A display panel according to the embodiment includes: a display area in which a plurality of first pixels are arranged at a first pixels per inch (PPI); and a sensing area in which a plurality of second pixels are arranged at a second PPI that is lower than the first PPI, wherein the first pixels of the display area and the second pixels of the sensing area are arranged adjacent to each other at a boundary between the display area and the sensing area, the second pixel includes red, green, and blue sub-pixels, and at least one of the red and green sub-pixels of the second pixel is arranged closest to the first pixel.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: January 10, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Min Sung Kang, Hee Jung Hong, Seong Ho Cho
  • Publication number: 20220068208
    Abstract: Disclosed are a display panel and a display device including the same according to an embodiment. A display panel according to the embodiment includes: a display area in which a plurality of first pixels are arranged at a first pixels per inch (PPI); and a sensing area in which a plurality of second pixels are arranged at a second PPI that is lower than the first PPI, wherein the first pixels of the display area and the second pixels of the sensing area are arranged adjacent to each other at a boundary between the display area and the sensing area, the second pixel includes red, green, and blue sub-pixels, and at least one of the red and green sub-pixels of the second pixel is arranged closest to the first pixel.
    Type: Application
    Filed: July 23, 2021
    Publication date: March 3, 2022
    Inventors: Min Sung KANG, Hee Jung HONG, Seong Ho CHO
  • Patent number: 11244645
    Abstract: A display device includes a display panel and a level shifter. The display panel displays images. The level shifter includes a signal pad through which a clock signal to drive the display panel is output and a reverse signal pad through which a reverse clock signal different from the clock signal is output, and the reverse signal pad is in an electrically floated state.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: February 8, 2022
    Assignee: LG Display Co., Ltd
    Inventors: Se-Dong Park, Soon-Dong Cho, Dong-Ju Kim, Hee-Jung Hong, Jung-Jae Kim
  • Publication number: 20210020134
    Abstract: A display device includes a display panel and a level shifter. The display panel displays images. The level shifter includes a signal pad through which a clock signal to drive the display panel is output and a reverse signal pad through which a reverse clock signal different from the clock signal is output, and the reverse signal pad is in an electrically floated state.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 21, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Se-Dong PARK, Soon-Dong CHO, Dong-Ju KIM, Hee-Jung HONG, Jung-Jae KIM
  • Patent number: 10281719
    Abstract: A display device performs efficient driving by selectively scanning a peripheral area processed to have low resolution. The display device includes a gate driver that scans a first subset of pixel rows in a first scan block including only the peripheral area during a first frame and a second frame, and respectively scan during the first frame and the second frame a second subset of pixel rows and a third subset of pixel rows in a second scan block including the medial area and the peripheral area excluding the foveal area, and scan pixel rows of pixels in a third scan block including the foveal area, the medial area, and the peripheral area during the first frame and the second frame.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: May 7, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Joon-Hee Lee, Hee-Jung Hong, Dong-Won Park
  • Publication number: 20180095274
    Abstract: A display device performs efficient driving by selectively scanning a peripheral area processed to have low resolution. The display device includes a gate driver that scans a first subset of pixel rows in a first scan block including only the peripheral area during a first frame and a second frame, and respectively scan during the first frame and the second frame a second subset of pixel rows and a third subset of pixel rows in a second scan block including the medial area and the peripheral area excluding the foveal area, and scan pixel rows of pixels in a third scan block including the foveal area, the medial area, and the peripheral area during the first frame and the second frame.
    Type: Application
    Filed: September 18, 2017
    Publication date: April 5, 2018
    Inventors: Joon-Hee LEE, Hee-Jung HONG, Dong-Won PARK
  • Patent number: 9360703
    Abstract: A liquid crystal display (LCD) device includes a backlight assembly with a light source between a liquid crystal panel and a bottom. A heat sink is disposed on the bottom case to irradiate heat out of the liquid crystal display device. The heat sink may be located where the heat is accumulated by thermal convection, or near the top of the LCD device.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: June 7, 2016
    Assignee: LG DISPLAY CO. LTD.
    Inventor: Hee-Jung Hong
  • Patent number: 9030376
    Abstract: Provided are a display device and a method for driving the same. The display device includes: a plurality of display modules; a plurality of display module drivers for respectively driving the display modules; a data divider receiving data signals for displaying an image on the display device and separating the received data signals into output data signals corresponding to each respective display module driver; and a timing control signal generator for generating a timing control signal to be supplied commonly to the display module drivers.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: May 12, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Seong Gyun Kim, Hee Jung Hong, Nam Yong Gong
  • Patent number: 8967822
    Abstract: A backlight assembly includes at least one backlight sub-unit, the backlight sub-unit including a light emitting diode (LED) unit that includes at least one LED that emit a predetermined color arranged in a predetermined pattern and a sidewall surrounding the LED unit.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: March 3, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Hee-Jung Hong, Eui-Yeol Oh
  • Publication number: 20140340386
    Abstract: Provided are a display device and a method for driving the same. The display device includes: a plurality of display modules; a plurality of display module drivers for respectively driving the display modules; a data divider receiving data signals for displaying an image on the display device and separating the received data signals into output data signals corresponding to each respective display module driver; and a timing control signal generator for generating a timing control signal to be supplied commonly to the display module drivers.
    Type: Application
    Filed: July 30, 2014
    Publication date: November 20, 2014
    Inventors: Seong Gyun KIM, Hee Jung HONG, Nam Yong Gong
  • Patent number: 8810477
    Abstract: Provided are a display device and a method for driving the same. The display device includes: a plurality of display modules; a plurality of display module drivers for respectively driving the display modules; a data divider receiving data signals for displaying an image on the display device and separating the received data signals into output data signals corresponding to each respective display module driver; and a timing control signal generator for generating a timing control signal to be supplied commonly to the display module drivers.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: August 19, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Seong Gyun Kim, Hee Jung Hong, Nam Yong Kong
  • Patent number: 8760382
    Abstract: A liquid crystal panel includes a plurality of display regions that correspond to the division images. The number of the division images can be set with consideration of the number of lamps covering the display regions. The average brightness of an entire image is compared with the average brightness of the division images so as to vary brightness of each division image according to a comparison result. Light that corresponds to the varied brightness is illuminated to each display region. Therefore, a dark division image is displayed darker and a bright division image is displayed brighter in the image of one frame, thereby enhancing a contrast ratio and reducing power consumption.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: June 24, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Eui Yeol Oh, Hee Jung Hong
  • Patent number: 8670006
    Abstract: A local dimming driving method of the LCD device includes divisionally driving all of a plurality of blocks of a backlight unit using a maximum luminance signal and measuring luminance per block, setting one of the plurality of blocks as a reference block, detecting luminance deviations between the reference block and the residual blocks, and setting an offset value per block for compensating for the detected luminance deviations per block, analyzing an input image in units of blocks corresponding to the plurality of blocks of a backlight unit respectively, detecting a representative value per block, and determining a dimming value per block according to the representative value per block, correcting the dimming value per block using the offset value per block, and controlling the luminance of the backlight unit on a block-by-block basis using the corrected dimming value per block.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: March 11, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Hee-Jung Hong, Eui-Yeol Oh, Si-Hoon Lee, Hee-Won Ahn
  • Patent number: 8665298
    Abstract: Disclosed is a method for analyzing a light profile of a light source includes driving a light source of one of a plurality of blocks which divide a backlight unit, setting a light analyzing region matched to one light emission region of the light source, dividing the light analyzing region into at least two symmetric regions considering a form of the light emission region and symmetry of the light emission region, and analyzing and storing a light profile of one of the at least two symmetric regions.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: March 4, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Hee-Jung Hong, Eui-Yeol Oh, Si-Hoon Lee, Jung-Hwan Lee
  • Patent number: 8514182
    Abstract: A touch panel display device includes a display panel having a scroll bar, an upper transparent sheet bonded to the display panel, a lower transparent sheet separated from the upper transparent sheet, an upper transparent film formed on the upper transparent sheet having a first electrode is formed perpendicularly crossing the scroll bar, and a lower transparent film formed on the lower transparent sheet having a second electrode.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: August 20, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Yong Ik Bang, Tae Ho You, Hee Jung Hong
  • Patent number: 8427419
    Abstract: Disclosed herein is a local dimming driving method and device of an LCD device, which is capable of minimizing luminance deviation at the same gray scale due to a dimming difference between blocks. The local dimming driving method of the LCD device includes analyzing input image data in units of blocks and determining a local dimming value per block, performing spatial filtering with respect to the local dimming value per block, repeating spatial filtering by a predetermined repeat count, and controlling luminance of a backlight unit on a block-by-block basis using the local dimming value per block controlled by spatial filtering.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: April 23, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hee-Won Ahn, Hee-Jung Hong, Kyung-Joon Kwon, Dong-Woo Kim
  • Patent number: 8427468
    Abstract: A mobile display device driving apparatus and method which can reduce power consumption are disclosed. The driving apparatus includes a liquid crystal panel a battery, a power saving mode signal generator that detects the remaining power of the battery and generates a power saving mode signal based on the detected power to set a power saving mode of the liquid crystal panel. A controller sets a gain value in response to the power saving mode signal, converts external three-color input data into four-color data based on the set gain value and generates a dimming signal in response to the power saving mode signal. A panel driver displays an image based on the four-color data. An inverter generates a lamp drive voltage based on the dimming signal, and a backlight unit generates light in response to the lamp drive voltage and irradiates the generated light to the liquid crystal panel.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: April 23, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hee Jung Hong, Kyung Joon Kwon
  • Patent number: 8350798
    Abstract: A liquid crystal display device capable of improving reliability of a backlight unit is disclosed. The liquid crystal display device includes: a backlight dimming modulating unit configured to modulate an internal algorithm backlight dimming control signal using an external input algorithm backlight dimming control signal and to maintain a dimming duty equal to or wider than an allowable dimming range of a backlight unit; arithmetic unit configured to multiply the external input algorithm backlight dimming control signal by the modulated internal algorithm backlight dimming control signal and to output a final backlight dimming control signal; and a data modulating unit configured to modulate image data using the external input algorithm backlight dimming control signal corresponding to the modulated final backlight dimming control signal.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: January 8, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hee Jung Hong, Kyung Joon Kwon, Hee Won Ahn, Dae Ho Cho