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: 8564523
    Abstract: In a shift register and an LCD having the same, the shift register includes plural stages having odd stages for receiving a first clock signal and a first control signal and even stages for receiving a second clock signal and a second control signal. Each of the plural stages includes a pull-up section for providing one of first and second clock signals to an output terminal, a pull-down section for providing a first power voltage to the output terminal, a pull-up driving section for turning on/off the pull-up section in response to an output signal of a front stage and turning off the pull-up section in response to the first and second control signals, a first pull-down driving section for outputting a third control signal, and a second pull-down driving section for turning off the pull-down section in response to the input signal and turning on the pull-down section in response to the third control signal.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: October 22, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Seung-Hwan Moon
  • Publication number: 20130265244
    Abstract: A display device includes a first substrate including a first surface, on which a touch by an external object occurs, and a second surface opposite to the first surface, a plurality of driving signal lines positioned on the second surface of the first substrate, where the plurality of driving signal lines transmits a driving signal for displaying an image, a plurality of pixels including a plurality of switching elements connected to the plurality of driving signal lines, a sensing signal line positioned on one of the first surface and the second surface of the first substrate, where the sensing signal line transmits a sensing signal generated based on the touch by the external object, and a touch sensor unit including a sensing capacitor defined by at least one driving signal line of the plurality of driving signal lines and the sensing signal line.
    Type: Application
    Filed: August 10, 2012
    Publication date: October 10, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chul KIM, Su Bin PARK, Ji Woong KIM, Seung Hwan MOON, Nam-Hee GOO, Seok-Hyun JUNG
  • Patent number: 8542180
    Abstract: A method of driving a display panel includes generating a gate on voltage, a first gate off voltage and a second gate off voltage. A clock signal is generated based upon the gate on voltage and the second gate off voltage. A first panel gate off voltage substantially the same as the first gate off voltage and a second panel gate off voltage substantially the same as the second gate off voltage are generated in a first operating mode. A first panel gate off voltage greater than the first gate off voltage and a second panel gate off voltage greater than the second gate off voltage are generated in a second operating mode. A gate signal is generated based upon the clock signal and the first and second panel gate off voltages to a gate line of the display panel.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: September 24, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-Kwang Park, Sang-Heon Park, Seung-Hwan Moon
  • Patent number: 8537176
    Abstract: A method and apparatus capable of reducing or preventing dithering noises in 3D dither for displaying stereoscopic or 3D images are provided. The method entails generating image data in which two consecutive frames have the same dithered image data.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: September 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Seok Ko, Seung-Hwan Moon, Jung-Hwan Cho, Myeong-Su Kim
  • Patent number: 8537101
    Abstract: A three-dimensional image display device includes a luminance controller receiving a three-dimensional enable signal, a backlight data signal and at least one starting signal of a scan starting signal, a vertical blank starting signal and a backlight starting signal. The luminance controller outputs a backlight control signal and a backlight unit is operated based on the backlight control signal and is coupled to the luminance controller. The backlight data signal is based on a previous pulse of the starting signal and is applied from a first time when a current pulse of the starting signal starts to a second time when a next pulse of the starting signal starts.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: September 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-Jae Kim, Byoung Jun Lee, Kyung-Uk Choi, Seung Hwan Moon, Nam-Hee Goo, Myoung-Chul Kim, Bo-Ram Kim, Jong-Yoon Lee
  • Publication number: 20130215094
    Abstract: A display device includes a display panel that includes a first pixel and a second pixel, the first pixel being associated with a positive pixel voltage relative to a data voltage and being associated with a first leakage current, the second pixel being associated with a negative pixel voltage relative to the data voltage and being associated with a second leakage current. The display device further includes a gate driver for providing a first gate-off voltage having a first value to at least one of the first pixel and the second pixel, the first value being in a range determined based on an equality-enabling value, wherein a value of the first leakage current is equal to a value of the second leakage current if the first gate-off voltage having the equality-enabling value is provided to the at least one of the first pixel and the second pixel.
    Type: Application
    Filed: August 7, 2012
    Publication date: August 22, 2013
    Applicant: SAMSUNG DISPLAY GO., LTD.
    Inventors: Yong-Jun CHOI, Jae-Suk CHOI, Seung Hwan MOON, Po-Yun PARK, Min Joo LEE, Jung Hwan CHO
  • Publication number: 20130215097
    Abstract: A liquid crystal panel assembly having a first group of pixels and a second group of pixels, gate lines having a first group of gate lines and a second group of gate lines that are connected with the first group of pixels and the second group of pixels, respectively, and data lines each of which is connected with one of the first group of pixels and one of the second group of pixels in every row. Further including a signal controller that receives input image signals and generates two groups of image data, a data driver that receives the two groups of image data, and a gate driving unit including a first gate driver that provides first gate-on signals to the first group of gate lines and a second gate driver that provides second gate-on signals to the second group of gate lines.
    Type: Application
    Filed: August 27, 2012
    Publication date: August 22, 2013
    Applicant: SAMSUNG ELECTRONICS CO. LTD.,
    Inventor: Seung-Hwan MOON
  • Patent number: 8514162
    Abstract: A display apparatus includes; a data driver integrated in one chip and which outputs data signals; a gate driver which sequentially outputs gate signals, a display panel which includes; a plurality of data lines which receive the data signals, a plurality of gate lines which receive the gate signals, and a plurality of pixels connected to a corresponding gate line and a corresponding data line, a voltage generator which generates a common voltage and a storage voltage and provides them to the display panel, and a voltage compensator which receives the storage voltage fedback from the display panel and generates a compensation signal, wherein the display panel further includes a feedback line which provides the voltage compensator with the storage voltage, and wherein the feedback line is electrically connected to the voltage compensator through the data driver.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: August 20, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Moon Moh, Han-Jin Ryu, Hong-Sig Chu, Kwang-Jae Kim, Sang-Don Bae, In-Jae Hwang, Seung-Hwan Moon, Sang-Soo Kim
  • Patent number: 8493518
    Abstract: An LCD with an integrated touch panel that prevents sensor malfunction by eliminating coupling noises includes an insulating substrate, a plurality of gate lines formed on the insulating substrate so as to extend in a first direction, a plurality of data lines formed in a second direction so as to intersect the plurality of gate lines, a plurality of thin film transistors (TFTs), each formed at an area defined by the gate lines and the data lines, a plurality of sensor lines formed in the same directions as the gate lines and the data lines, and a plurality of dummy lines formed in the same directions as the sensor lines.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: July 23, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Seung-hwan Moon
  • Publication number: 20130169587
    Abstract: A display device includes: a first display panel; a second display panel opposite to the first display panel; and an electro-optical active layer between the first display panel and the second display panel, wherein the first display panel includes a thin film transistor including a gate electrode, a source electrode, a drain electrode and a semiconductor layer, a gate line configured to transmit a gate signal to the gate electrode of the transistor and extending in a first direction, and a sensing electrode extending in the first direction and overlapping the gate line, where the sensing electrode and the gate electrode define a capacitor.
    Type: Application
    Filed: May 22, 2012
    Publication date: July 4, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chul KIM, Ji Woong KIM, Su Bin PARK, Byoung Jun LEE, Seung Hwan MOON
  • Publication number: 20130088444
    Abstract: A method of driving a touch display panel includes sequentially providing gate signals to a plurality of gate lines, outputting data signals to a plurality of data lines, the data lines being disposed on the first surface and crossing the gate lines, and reading out a first sensing signal through a plurality of sensing lines in response to the gate signals. The gate lines are disposed on a first surface of a base substrate, the touch display panel including the base substrate. The data signals are synchronized with the gate signals. The sensing line is disposed on a second surface of the base substrate, the second surface being opposite to the first surface.
    Type: Application
    Filed: September 10, 2012
    Publication date: April 11, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chul KIM, Ji-Woong KIM, Su-Bin PARK, Seung-Hwan MOON, Byoung-Jun LEE
  • Patent number: 8400390
    Abstract: A gate driving device includes a plurality of stages, a first dummy stage connected to the plurality of stages and a second dummy stage connected to the first dummy stage. Stages of the plurality of stages are cascaded. The first dummy stage includes a first charge unit which receives a first input signal from a previous stage of the plurality of stages and is thereby charged, and a first pull-up transistor which outputs a clock signal when the first charge unit reaches a first charge level. The second dummy stage includes a second charge unit which receives a second input signal from the first dummy stage and is thereby charged, and a second pull-up transistor which outputs the clock signal when the second charge unit reaches a second charge level higher than the first charge level.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: March 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Cheol Lee, Seung-Hwan Moon
  • Publication number: 20130038639
    Abstract: A display device including a display panel displaying a still image and a moving image and a signal controller controlling signals to drive the display panel, wherein the signal controller includes a frame memory storing image data of the still image and providing the image data to the display panel, and the display panel is driven with a first scan ratio when displaying the moving image and is driven with a second scan ratio that is lower than the first scan ratio when displaying the still image.
    Type: Application
    Filed: March 2, 2012
    Publication date: February 14, 2013
    Inventors: Young-Su HAN, Seung Hwan MOON, Jung Hwan CHO, Myeong-Su KIM, Jae Wan PARK, Jin-Soo KIM
  • Publication number: 20130038621
    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: Application
    Filed: August 7, 2012
    Publication date: February 14, 2013
    Applicant: 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
  • Publication number: 20130038569
    Abstract: A display device includes: a first insulation substrate having an upper surface and a lower surface; a transparent conductive layer disposed on the upper surface of the first insulation substrate; a gate line disposed on the lower surface of the first insulation substrate; a gate insulating layer disposed on the gate line; a semiconductor layer disposed on the gate insulating layer; a data line disposed on the semiconductor layer and connected to a source electrode and a drain electrode facing the source electrode; and a pixel electrode electrically connected to the drain electrode, where the gate line, the gate insulating layer, the semiconductor layer and the data line are sequentially disposed on the lower surface of the first insulation substrate.
    Type: Application
    Filed: December 6, 2011
    Publication date: February 14, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chul KIM, Su-Bin PARK, Seung Hwan MOON, Byoung Jun LEE
  • Publication number: 20130027400
    Abstract: A display device including a display panel displaying an original image at a first time and a converted image based on the original image at a second time. The average value of the luminance of a first pixel (of the original image) first time and the luminance of the first pixel (of the converted image) at the second time is substantially the same as the average value of luminance of a second pixel (of the original image) at the first time and the luminance of the second pixel (of the converted image) at the second time.
    Type: Application
    Filed: December 20, 2011
    Publication date: January 31, 2013
    Inventors: Bo-Ram Kim, Jong-Yoon Lee, Yun-Jae Kim, Nam-Hee Goo, Seung Hwan Moon, Byoung Jun Lee, Young-Su Han
  • Publication number: 20130021325
    Abstract: A three-dimensional (3D) image display device including a display panel assembly including a display panel displaying an image and a timing controller, an integration controller transmitting an input image signal to the timing controller, a shutter member including a left eye shutter and a right eye shutter, a shutter timing determining unit receiving a shutter member control source signal from the integration controller or an outside source to generate shutter timing information, and a shutter timing controller receiving the shutter timing information to generate a shutter member control signal and transmitting the shutter member control signal to the shutter member, wherein an open time or a close time of the left eye shutter or the right eye shutter for a frame is based on the shutter timing information.
    Type: Application
    Filed: November 18, 2011
    Publication date: January 24, 2013
    Inventors: Bo-Ram KIM, Myoung-Chul KIM, Seung Hwan MOON, Byoung Jun LEE, Yun-Jae KIM, Nam-Hee GOO, Jong-Yoon LEE
  • Publication number: 20120293467
    Abstract: A gate driving circuit includes a shift register and a vertical start line. The shift register includes first to N-th circuit stages sequentially providing first to N-th gate-on signals to first to N-th gate lines, respectively, at least one reverse dummy stage adjacent to the first circuit stage and at least one forward dummy stage adjacent to the N-th circuit stage (N is a natural number). The vertical start line is electrically connected to the first circuit stage or the N-th circuit stage according to a scan direction and transfers a vertical start signal to the first or N-th circuit stage.
    Type: Application
    Filed: November 21, 2011
    Publication date: November 22, 2012
    Inventors: Jae-Hoon Lee, Bon-Yong Koo, Seung-Hwan Moon, Won-Hee Lee
  • Patent number: 8310477
    Abstract: A power circuit for a liquid crystal display includes a voltage divider which generates a voltage-divided voltage between a first power source and a second power source, an operational amplifier which receives the voltage-divided voltage to output a driving voltage, a first switch connected between the first power source and a common node, and a second switch connected between the second power source and the common node. The first switch provides a first current path between the first power source and the common node in response to the driving voltage, and the second switch provides a second current path between the second power source and the common node in response to the driving voltage.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: November 13, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ok-Kwon Shin, Seung-Hwan Moon, Sun-Kyu Son
  • Patent number: 8305332
    Abstract: A backlight unit of a liquid crystal display device supplies light to one or more corresponding pixels of a liquid crystal display panel. The backlight unit includes a plurality of blocks formed into a matrix shape. Each block includes a light emitting diode module. The blocks in a row of the matrix are driven by a same row driving signal and the blocks in a column of the matrix are driven by a same column driving signal, to adjust luminance of the light supplied to the corresponding pixels.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: November 6, 2012
    Assignees: Samsung Display Co., Ltd., Korea Advanced Institute Science & Technology
    Inventors: Mun-Soo Park, Gun-Woo Moon, Won-Sik Oh, Dae-Youn Cho, Kyu-Min Cho, Nam-Deog Kim, Seung-Hwan Moon