Patents by Inventor Myeong-su Kim

Myeong-su Kim 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: 8605026
    Abstract: A liquid crystal display includes a first timing controller for receiving image signals in synchronization with a first clock signal and outputting representative image signals in synchronization with a second clock signal, the frequency of the second clock signal being lower than the frequency of the first clock signal; and circuitry for controlling luminance of light-emitting blocks of the liquid crystal display in response to the representative image signals.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: December 10, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-seok Ko, Myeong-su Kim
  • 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
  • Publication number: 20130141473
    Abstract: A method of driving a display panel includes: applying a data signal to the display panel during a sub-active interval based on a data enable signal, and blocking the data signal applied to the display panel during the sub-blanking interval. In such an embodiment, the data enable signal is activated during the sub-active interval and deactivated during the sub-blanking interval, a frame is divided into a plurality of sub-frames, and each of the sub-frames is divided into the sub-active interval and the sub-blanking interval.
    Type: Application
    Filed: June 22, 2012
    Publication date: June 6, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gyeong-Ub MOON, Ga-Na KIM, Kyoung-Phil KIM, Jung-Hwan CHO, Myeong-Su 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: 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
  • Patent number: 8120566
    Abstract: A timing controller for a display device includes a receiver, a first line memory, a serialization part, and first and second compensation parts. The receiver receives image data corresponding to unit pixels, and transmits the image data to the first line memory in a first order. The first line memory receives and stores the image data. The serialization part reads the image data in the first order from the first line memory and serially transmits the image data in a second order different from the first order. The first compensation part receives the image data in the second order and generates first compensation data of the image data, the first compensation data corresponding to a first gamma curve. The second compensation part receives the image data in the second order and generates second compensation data of the image data, the second compensation data corresponding to a second gamma curve.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: February 21, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Myeong-Su Kim
  • Publication number: 20120026137
    Abstract: A driving apparatus of a display device includes a signal controller including a plurality of driving circuit blocks, where the signal controller receives an image signal, input control signals from an outside and a data driver which receives data driving signals output from the signal controller, where a data transmission clock input to at least one of the plurality of driving circuit blocks of the signal controller is inactive during a blank period of at least one of the input control signals.
    Type: Application
    Filed: April 20, 2011
    Publication date: February 2, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Wan PARK, Myeong-Su KIM, Hyun-Seok KO, Jung-Hwan CHO
  • Publication number: 20110298789
    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: Application
    Filed: September 28, 2010
    Publication date: December 8, 2011
    Inventors: Hyun-Seok KO, Seung-Hwan Moon, Jung-Hwan Cho, Myeong-Su Kim
  • Publication number: 20100156948
    Abstract: A timing controller for a display device includes a receiver, a first line memory, a serialization part, and first and second compensation parts. The receiver receives image data corresponding to unit pixels, and transmits the image data to the first line memory in a first order. The first line memory receives and stores the image data. The serialization part reads the image data in the first order from the first line memory and serially transmits the image data in a second order different from the first order. The first compensation part receives the image data in the second order and generates first compensation data of the image data, the first compensation data corresponding to a first gamma curve. The second compensation part receives the image data in the second order and generates second compensation data of the image data, the second compensation data corresponding to a second gamma curve.
    Type: Application
    Filed: July 15, 2009
    Publication date: June 24, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Myeong-Su KIM
  • Patent number: 7724224
    Abstract: A display device includes: a display panel including pixels; a signal controller that stores FRC patterns including data elements having first or second value, selects one of the FRC data patterns based on input image data having a first bit number, and converts the input image data into output image data having a second bit number based on the selected FRC data pattern; and a data driver applying to the pixels data voltages corresponding to the output image data supplied from the signal controller. The data voltages have first or second polarity, and the number of the pixels supplied with data voltages that correspond to the output image data converted based on the first value and have the first polarity is equal to the number of the pixels supplied with data voltages that correspond to the output image data converted based on the first value and have the second polarity.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: May 25, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Su-Hyun Kwon, Myeong-Su Kim
  • Patent number: 7609240
    Abstract: A light generating device includes a brightness detector. The brightness detector extracts a brightness data from an image data. The light generating device compensates the uniformity of a white light whenever the image data that is greater than a reference gray scale is input through the brightness detector. Thus, the light generating device may compensate the uniformity of the white light in real time, so that a display apparatus employing the light generating device may improve a high-quality image.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: October 27, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mun-Soo Park, Jong-Hyon Park, Myeong-Su Kim
  • Publication number: 20090144641
    Abstract: A liquid crystal display (LCD) monitor having an LCD screen is provided in a display system where the monitor is coupled to a host device by way of serial data links such as VESA DisplayPort links. The LCD monitor uses a first bi-directional serial channel (e.g., AUX_CH) to send an OSD (on-screen display) image-requesting control signal to the host device. The host device uses a first unidirectional serial channel (e.g., Main link) to return a corresponding OSD video signal to the monitor. The monitor includes a handling portion for providing a user command signal in response to user manipulation of on-monitor inputs, and a timing controller for receiving the user command signal and outputting a corresponding OSD image-requesting control signal through the first bi-directional channel to the host device. The timing controller receives the corresponding OSD video signal from the host and produces a corresponding OSD image on the LCD screen.
    Type: Application
    Filed: September 22, 2008
    Publication date: June 4, 2009
    Inventors: Myeong-su KIM, Jang-hyun YEO
  • Publication number: 20090109165
    Abstract: A backlight unit for a display device that reduces power consumption while and display of undesirable artifacts in images is presented. The backlight unit is divided into a plurality of light-emitting regions, and a luminance control signal generator controls the luminance of light emitted by each of the light-emitting regions. The luminance of a particular light-emitting region is controlled by taking into account light interference from an adjacent light-emitting region. A display panel to display images through light emitted from the backlight unit, and a backlight driver drives the backlight unit.
    Type: Application
    Filed: May 28, 2008
    Publication date: April 30, 2009
    Inventors: Mun-Soo PARK, Yun-Jae Park, Myeong-Su Kim, Kyung-Uk Choi
  • Publication number: 20090102776
    Abstract: A liquid crystal display includes a first timing controller for receiving image signals in synchronization with a first clock signal and outputting representative image signals in synchronization with a second clock signal, the frequency of the second clock signal being lower than the frequency of the first clock signal; and circuitry for controlling luminance of light-emitting blocks of the liquid crystal display in response to the representative image signals.
    Type: Application
    Filed: June 23, 2008
    Publication date: April 23, 2009
    Inventors: Hyun-seok Ko, Myeong-su Kim
  • Patent number: 7446763
    Abstract: A liquid crystal display is provided, which includes: a liquid crystal panel including a plurality of gate lines, a plurality of data lines, and a plurality of pixels, each pixel including a liquid crystal and a switching element connected to one of the gate lines and one of the data lines; a gate driver applying a gate signal to the gate lines, the gate signal including a first voltage for turning on the switching elements and a second voltage for turning off the switching elements; a data driver applying data voltages to the data lines; a signal controller controlling the gate driver and the data driver; and a voltage supplier applying a control voltage substantially equal to one of the first and the second voltages of the gate signal to the pixels without passing through the switching elements for a control time.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: November 4, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Myeong-Su Kim
  • Publication number: 20080203929
    Abstract: A light generating device includes a brightness detector. The brightness detector extracts a brightness data from an image data. The light generating device compensates the uniformity of a white light whenever the image data that is greater than a reference gray scale is input through the brightness detector. Thus, the light generating device may compensate the uniformity of the white light in real time, so that a display apparatus employing the light generating device may improve a high-quality image.
    Type: Application
    Filed: February 6, 2008
    Publication date: August 28, 2008
    Inventors: Mun-Soo Park, Jong-Hyon Park, Myeong-Su Kim
  • Publication number: 20080106542
    Abstract: A display apparatus that can conserve power without compromising general display quality is presented. In a display system including a main control apparatus and a display apparatus, the main control apparatus generates an image control signal having an image data, and a main clock signal that changes from a first frequency to a second frequency in response to a change in image mode from a first image mode to a second image mode. The change from the first frequency to the second frequency includes changing through at least one intermediate frequency stage between the first frequency and the second frequency. By maintaining the change of frequency shift small (i.e., less than a predetermined maximum change), operation in emergency mode is avoided even when the frequency shift is sudden. The display apparatus receives the image control signal and the main clock signal to display an image.
    Type: Application
    Filed: November 2, 2007
    Publication date: May 8, 2008
    Inventors: Dong-Won PARK, Myeong-Su Kim, Seung-Hwan Moon
  • Publication number: 20080055214
    Abstract: A driver for driving a display device having a plurality of pixels connected to a plurality of data lines includes: a signal controller that creates a plurality of image signal groups and a plurality of identification codes corresponding to the plurality of image signal groups; and a plurality of data driving circuits each of which receives at least two identification codes of the plurality of identification codes and the image signal groups corresponding to the at least two identification codes, converts the image signals into data signals, and outputs the data signals to the data lines. In the driver, each of the data driving circuits compares the at least two identification codes, selects one of the image signal groups according to the result of the comparison, converts the image signals belonging to the one image signal group into the data signals, and outputs the other image signal groups to another data driving circuit.
    Type: Application
    Filed: February 8, 2007
    Publication date: March 6, 2008
    Inventors: Nam-Soo Kang, Myeong-Su Kim, Haeng-Won Park, Yong-Soon Lee
  • Publication number: 20070164969
    Abstract: A timing controller for a liquid crystal display device includes an error detection module that detects an error in signals input from an external source and generates a data signal based on the error in the signals, so as to display the data signal on a liquid crystal panel for a predetermined time period. Thus, the liquid crystal display device stably displays the data signal while compensating for the error in the input signals, thereby improving the image quality of the liquid crystal display device.
    Type: Application
    Filed: January 19, 2007
    Publication date: July 19, 2007
    Inventor: Myeong-Su Kim
  • Publication number: 20060238471
    Abstract: A driving device and driving method for a display is provided that enhances the difference between the brightness displayed by the low gray-scale data and the brightness displayed by the high gray-scale data. The driving device and method include dividing input gray-scale data into high gray-scale output data and low gray-scale output data and allowing brightness higher than the brightness in the highest gray scale to be displayed by the use of the high gray-scale output data. Accordingly, side visibility of the display is enhanced and a display characteristic of a display is improved. In addition, the driving device and driving method includes enhancing an AVDD voltage applied to a gray-scale voltage generator to prevent the brightness of the display from decreasing as a whole.
    Type: Application
    Filed: March 14, 2006
    Publication date: October 26, 2006
    Inventors: Byoung-Suk Kim, Myeong-Su Kim