Patents by Inventor Seung-Hwan Moon

Seung-Hwan Moon 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: 10319328
    Abstract: A display device and method is provided that permits selection of a first lookup table or a second lookup table to operate the data driver at respectively different temperatures to prevent heat from damaging the display device. The display device includes a detector which detects the number of toggles in which the amount of change in gray values of successive pixels driven by the same data line in one frame is equal to or greater than a reference gray change amount. A comparator compares the number of toggles detected by the detector with a reference number of toggles, and a lookup table selector which selects any one of a first lookup table and a second lookup table based on the comparison result of the comparator and provides the selected first lookup table or second lookup table to a data driver.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: June 11, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyun Ho Kim, Bong Gyun Kang, Sang An Kwon, Seung Hwan Moon, Yong Jin Shin, Neung Beom Lee, Jun Pyo Lee, Kyung Hwa Lim
  • Patent number: 10140944
    Abstract: A display device for improving display quality includes a pulse compensator, a gate driver, a source driver and a display panel. The pulse compensator generates a clock signal of which amplitude decreases when peripheral temperature increases and increases when peripheral temperature decreases. The gate driver outputs a gate driving signal to the display panel based on the clock signal, wherein an amplitude of the gate driving signal decreases when the peripheral temperature increases and the amplitude of the gate driving signal increases when the peripheral temperature decreases. The source driver provides a gray-scale voltage based on gray-scale data, and the display panel displays an image corresponding to the gray-scale voltage in response to the gate driving signal. Therefore, the deterioration in the drive capability of the gate driver depending on the peripheral temperature may be prevented and display quality of the display device may be improved.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: November 27, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seoung-Bum Pyoun, Seung-Hwan Moon
  • Publication number: 20180301105
    Abstract: A display device and method is provided that permits selection of a first lookup table or a second lookup table to operate the data driver at respectively different temperatures to prevent heat from damaging the display device. The display device includes a detector which detects the number of toggles in which the amount of change in gray values of successive pixels driven by the same data line in one frame is equal to or greater than a reference gray change amount. A comparator compares the number of toggles detected by the detector with a reference number of toggles, and a lookup table selector which selects any one of a first lookup table and a second lookup table based on the comparison result of the comparator and provides the selected first lookup table or second lookup table to a data driver.
    Type: Application
    Filed: November 1, 2017
    Publication date: October 18, 2018
    Inventors: KYUN HO KIM, Bong Gyun KANG, Sang An KWON, Seung Hwan MOON, Yong Jin SHIN, Neung Beom LEE, Jun Pyo LEE, Kyung Hwa LIM
  • Patent number: 10074334
    Abstract: A gate driver includes multiple stages. Each stage has a circuit portion and a wiring portion. The wiring portion delivers first and second clock signals to the circuit portion. Further, the wiring portion includes first and second clock wirings receiving the first and second clock signal, respectively, first connecting wirings electrically connecting the first clock wiring with a first every other stage, and second connecting wirings electrically connecting the second clock wiring with the odd-numbered stages. Further, the wiring portion includes third connecting wirings electrically connecting the first connecting wiring with a second every other stage and fourth connecting wirings electrically connecting the second connecting wiring with the even-numbered stages. This configuration may prevent the gate driver from operating erroneously and reduce power consumed by the gate driver.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: September 11, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Haeng-Won Park, Seung-Hwan Moon, Nam-Soo Kang, Sung-Jae Moon, Sung-Man Kim, Seong-Young Lee, Yong-Soon Lee
  • Publication number: 20180246387
    Abstract: A liquid crystal display includes a display panel including first and second subpixels, where the first subpixel includes a first switching device including a first electrode connected to the j-th data line, a second electrode connected to a first subpixel electrode and a gate electrode connected to an i-th gate line, the second subpixel includes a second switching device including a first electrode connected to a j-th data line, a second electrode connected to a second subpixel electrode and a gate electrode connected to the i-th gate line, a third switching device including a first electrode connected to the second subpixel electrode and a gate electrode connected to the i-th gate line, and a fourth switching device including a first electrode connected to the j-th data line, a second electrode connected to the first electrode of the third switching device and a gate electrode connected to the i-th gate line.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 30, 2018
    Inventors: Keum Dong Jung, Seung Hwan Moon, Seong Young Lee
  • Patent number: 10026371
    Abstract: A display device includes a pixel matrix having pixel rows and pixel columns and including pixels having switching elements positioned alternately at a corner near an upper and a lower side of each pixel row and positioned alternately at a corner near an upper and a lower side of and alternately at a corner near a left and a right side of each pixel column; multiple pairs of gate lines transmitting a gate-on voltage; and multiple data lines transmitting data voltages, wherein each pair of gate lines are disposed at the upper and lower sides of each pixel row with the pixels in each row connected to the gate line positioned nearest the respective switching element, and each data line is disposed between adjacent pairs of pixel columns and connected to pairs of pixels where one pixel of the pair has a switching element positioned nearest the respective data line.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: July 17, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Nam-Soo Kang, Seong-Young Lee, Sung-Man Kim, Seung-Hwan Moon
  • Patent number: 10025149
    Abstract: Gate-driving circuitry of a thin film transistor array panel is formed on the same plane as a display area of the transistor array panel. The gate-driving circuitry includes driving circuitry and signal lines having apertures. Thus, a sufficient amount of light, even though illuminated from the thin film transistor array panel side, can reach a photosetting sealant overlapping at least in part the gate-driving circuitry. The thin film transistor array panel and the counter panel are put together air-tight and moisture-tight. Consequently, the gate-driving circuitry can avoid corrosion by moisture introduced from outside. Gate-driving circuitry malfunctions can also be reduced.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: July 17, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Gyu Kim, Seung-Hwan Moon, Yong-Soon Lee, Nam-Soo Kang, Haeng-Won Park
  • Patent number: 9983453
    Abstract: A liquid crystal display includes a display panel including first and second subpixels, where the first subpixel includes a first switching device including a first electrode connected to the j-th data line, a second electrode connected to a first subpixel electrode and a gate electrode connected to an i-th gate line, the second subpixel includes a second switching device including a first electrode connected to a j-th data line, a second electrode connected to a second subpixel electrode and a gate electrode connected to the i-th gate line, a third switching device including a first electrode connected to the second subpixel electrode and a gate electrode connected to the i-th gate line, and a fourth switching device including a first electrode connected to the j-th data line, a second electrode connected to the first electrode of the third switching device and a gate electrode connected to the i-th gate line.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: May 29, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Keum Dong Jung, Seung Hwan Moon, Seong Young Lee
  • Publication number: 20180143478
    Abstract: Gate-driving circuitry of a thin film transistor array panel is formed on the same plane as a display area of the transistor array panel. The gate-driving circuitry includes driving circuitry and signal lines having apertures. Thus, a sufficient amount of light, even though illuminated from the thin film transistor array panel side, can reach a photosetting sealant overlapping at least in part the gate-driving circuitry. The thin film transistor array panel and the counter panel are put together air-tight and moisture-tight. Consequently, the gate-driving circuitry can avoid corrosion by moisture introduced from outside. Gate-driving circuitry malfunctions can also be reduced.
    Type: Application
    Filed: January 22, 2018
    Publication date: May 24, 2018
    Inventors: Dong-Gyu KIM, Seung-Hwan MOON, Yong-Soon LEE, Nam-Soo KANG, Haeng-Won PARK
  • Patent number: 9874794
    Abstract: Gate-driving circuitry of a thin film transistor array panel is formed on the same plane as a display area of the transistor array panel. The gate-driving circuitry includes driving circuitry and signal lines having apertures. Thus, a sufficient amount of light, even though illuminated from the thin film transistor array panel side, can reach a photosetting sealant overlapping at least in part the gate-driving circuitry. The thin film transistor array panel and the counter panel are put together air-tight and moisture-tight. Consequently, the gate-driving circuitry can avoid corrosion by moisture introduced from outside. Gate-driving circuitry malfunctions can also be reduced.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: January 23, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Gyu Kim, Seung-Hwan Moon, Yong-Soon Lee, Nam-Soo Kang, Haeng-Won Park
  • Publication number: 20180005593
    Abstract: A display device includes a pixel matrix having pixel rows and pixel columns and including pixels having switching elements positioned alternately at a corner near an upper and a lower side of each pixel row and positioned alternately at a corner near an upper and a lower side of and alternately at a corner near a left and a right side of each pixel column; multiple pairs of gate lines transmitting a gate-on voltage; and multiple data lines transmitting data voltages, wherein each pair of gate lines are disposed at the upper and lower sides of each pixel row with the pixels in each row connected to the gate line positioned nearest the respective switching element, and each data line is disposed between adjacent pairs of pixel columns and connected to pairs of pixels where one pixel of the pair has a switching element positioned nearest the respective data line.
    Type: Application
    Filed: September 18, 2017
    Publication date: January 4, 2018
    Inventors: Nam-Soo KANG, Seong-Young LEE, Sung-Man KIM, Seung-Hwan MOON
  • Patent number: 9799285
    Abstract: A display apparatus includes a display panel which displays an image, a compensation area determiner which divides a display area of the display panel into a compensation area and a normal area, a compensation coefficient determiner which determines a compensation coefficient corresponding to input data of the compensation area, a compensation look up table which stores a noise compensation data which compensates a luminance difference of the compensation area by an interference noise of a light-source driving signal, and a correction data calculator which calculates a correction data corresponding to the input data of the compensation area using the compensation coefficient and the noise compensation data.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: October 24, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Eun Jang, Seung-Hwan Moon, Sung-In Kang, Kyun-Ho Kim, Min-Ho Park, Shim-Ho Yi, Go-Eun Cha
  • Patent number: 9794548
    Abstract: A 3-dimensional image display device includes a signal controller, a data driver, a display panel, and glasses. The signal controller includes a reference gamma data generator to correct image data. The data driver includes a gray voltage generator to generate a gray voltage based on the corrected image data. The display panel displays left-eye and right-eye images based on a data voltage from the data driver. The lenses of the glasses are controlled by a glasses synchronization signal from the signal controller, to compensate for charging rates of the left-eye and right-eye images.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: October 17, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun-Sik Yoon, Jae Hyoung Park, Jun Pyo Lee, Seung Hwan Moon, Dong Won Park, Byung Kil Jeon
  • Publication number: 20170270885
    Abstract: A display panel includes an amorphous silicon gate driver in which a lower voltage than the gate-off voltage output from the gate driver is applied to an adjacent stage as a low voltage transmission signal.
    Type: Application
    Filed: June 5, 2017
    Publication date: September 21, 2017
    Inventors: JAE-HOON LEE, SEUNG-HWAN MOON, YONG-SOON LEE, YOUNG-SU KIM, CHANG-HO LEE, WHEE-WON LEE, JUN-YONG SONG, YU-HAN BAE
  • Patent number: 9767746
    Abstract: A display device includes a pixel matrix having pixel rows and pixel columns and including pixels having switching elements positioned alternately at a corner near an upper and a lower side of each pixel row and positioned alternately at a corner near an upper and a lower side of and alternately at a corner near a left and a right side of each pixel column; multiple pairs of gate lines transmitting a gate-on voltage; and multiple data lines transmitting data voltages, wherein each pair of gate lines are disposed at the upper and lower sides of each pixel row with the pixels in each row connected to the gate line positioned nearest the respective switching element, and each data line is disposed between adjacent pairs of pixel columns and connected to pairs of pixels where one pixel of the pair has a switching element positioned nearest the respective data line.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: September 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nam-Soo Kang, Seong-Young Lee, Sung-Man Kim, Seung-Hwan Moon
  • Publication number: 20170256226
    Abstract: A gate driver includes multiple stages. Each stage has a circuit portion and a wiring portion. The wiring portion delivers first and second clock signals to the circuit portion. Further, the wiring portion includes first and second clock wirings receiving the first and second clock signal, respectively, first connecting wirings electrically connecting the first clock wiring with a first every other stage, and second connecting wirings electrically connecting the second clock wiring with the odd-numbered stages. Further, the wiring portion includes third connecting wirings electrically connecting the first connecting wiring with a second every other stage and fourth connecting wirings electrically connecting the second connecting wiring with the even-numbered stages. This configuration may prevent the gate driver from operating erroneously and reduce power consumed by the gate driver.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 7, 2017
    Inventors: Haeng-Won PARK, Seung-Hwan MOON, Nam-Soo KANG, Sung-Jae MOON, Sung-Man KIM, Seong-Young LEE, Yong-Soon LEE
  • Patent number: 9672792
    Abstract: The present invention provides a display device with reduced power consumption and that reduces changes in luminance, and perceptibility of flicker, and a driving method thereof. A display device according to an exemplary embodiment comprises: a display panel configured to display a still image and a motion picture; a signal controller configured to control signals for driving the display panel; and a graphics processing unit configured to transmit input image data to the signal controller, wherein the signal controller comprises a frame memory configured to store the input image data, and the display panel is driven at a first frequency when the motion picture is displayed and the display panel is driven at a second frequency that is lower than the first frequency when the still image is displayed.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: June 6, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Jun Choi, Jae-Won Jeong, Jae-Suk Choi, Seung-Ho Baek, Joo Seok Yeom, Young-Su Han, Myeong-Su Kim, Yun-Jae Kim, Jin-Soo Kim, Seung Hwan Moon, Po-Yun Park, Jae Wan Park, Kwan-Young Oh, Min Joo Lee, Jung Hwan Cho
  • Patent number: 9672087
    Abstract: Exemplary embodiments of present invention relate to an error detecting apparatus for a gate driver improving a reliability of a display apparatus, a display apparatus having the error detecting apparatus, and a method of detecting an error of the gate driver using the error detecting apparatus. An exemplary embodiment discloses an error detecting apparatus including an error detecting part configured to receive a gate signal of a gate driver and determine whether a status of the gate driver is in a normal status or an error status based on the gate signal, a memory configured to store the status of the gate driver, and a signal outputting part configured to selectively output a clock signal and an error signal based on the status of the gate driver stored in the memory.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: June 6, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Jae Lee, Eui-Dong Hwang, Bon-Sung Koo, Jun-Dal Kim, Seung-Hwan Moon, Dong-Won Park
  • Patent number: 9672782
    Abstract: A display panel includes an amorphous silicon gate driver in which a lower voltage than the gate-off voltage output from the gate driver is applied to an adjacent stage as a low voltage transmission signal.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: June 6, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Hoon Lee, Seung-Hwan Moon, Yong-Soon Lee, Young-Su Kim, Chang-Ho Lee, Whee-Won Lee, Jun-Yong Song, Yu-Han Bae
  • Patent number: 9659542
    Abstract: A gate driver includes multiple stages. Each stage has a circuit portion and a wiring portion. The wiring portion delivers first and second clock signals to the circuit portion. Further, the wiring portion includes first and second clock wirings receiving the first and second clock signal, respectively, first connecting wirings electrically connecting the first clock wiring with a first every other stage, and second connecting wirings electrically connecting the second clock wiring with the odd-numbered stages. Further, the wiring portion includes third connecting wirings electrically connecting the first connecting wiring with a second every other stage and fourth connecting wirings electrically connecting the second connecting wiring with the even-numbered stages. This configuration may prevent the gate driver from operating erroneously and reduce power consumed by the gate driver.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: May 23, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Haeng-Won Park, Seung-Hwan Moon, Nam-Soo Kang, Sung-Jae Moon, Sung-Man Kim, Seong-Young Lee, Yong-Soon Lee