Patents by Inventor Byung-Ki Chun

Byung-Ki Chun 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).

  • Publication number: 20130342585
    Abstract: An image processing apparatus and image processing method are disclosed. The image processing apparatus includes an image input unit receiving input image data to obtain grayscale values of a display image, a modeling unit calculating a luminance change ratio for each grayscale value according to a change of an on-pixel ratio and a final luminance reflected by the luminance change ratio, a grayscale re-mapping unit determining a compensation grayscale value for compensating a luminance change ratio according to the on-pixel ratio of the input image data to display a target luminance corresponding to a predetermined grayscale value included in grayscale information of the input image data in the on-pixel ratio condition of the input image data, and an image output unit outputting an output image data compensating the input image data by the compensation grayscale value.
    Type: Application
    Filed: November 16, 2012
    Publication date: December 26, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Byung-Ki Chun, Yong-Seok Choi, Joo-Hyung Lee, Jong-Woong Park, Jeong-Eun Kim
  • Patent number: 8605107
    Abstract: An image processing device, an image processing method, and a flat panel display are disclosed. According to some aspects, the image processing device may include: an image determining unit for determining a kind of an input image as one of a moving picture, a photograph image, and a user interface image. A legibility improving unit may be configured to generate a legibility improved image by extracting specific pixels from input image according to the kind of the input image and by modifying gray scale values of the extracted specific pixels. According to some aspects, an illuminance sensor for sensing external illuminance, and a brightness improving unit for correcting a gamma curve according to the illuminance sensor is provided. Brightness may be controlled to increase outdoor visibility of an image according to the external illuminance.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: December 10, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Seok Choi, Geun-Young Jeong, Byung-Ki Chun, Jong-Woong Park, Joo-Hyung Lee
  • Publication number: 20130271502
    Abstract: An organic light emitting display capable of improving display quality is disclosed. The organic light emitting display includes pixels positioned at intersections of scan lines and data lines, a data driver for generating data signals to be supplied to the data lines using second data, and a data processing unit for generating a second data whose bit value is changed in consideration of brightness distribution of first data items supplied from the outside.
    Type: Application
    Filed: August 24, 2012
    Publication date: October 17, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yong-Seok Choi, Byung-Ki Chun, Jeong-Eun Kim, Jong-Woong Park, Joo-Hyung Lee
  • Publication number: 20130194494
    Abstract: A video signal processing apparatus and a video signal processing method are provided. The video signal processing apparatus includes an image processing apparatus configured to receive and convert an external input image data signal into an output image data signal according to a color arrangement structure, wherein the image processing apparatus includes at least one current limiter to remap the external input image data signal with expanded number of bits.
    Type: Application
    Filed: May 11, 2012
    Publication date: August 1, 2013
    Inventors: Byung-Ki Chun, Yong-Seok Choi, Jong-Woong Park, Joo-Hyung Lee
  • Publication number: 20130033517
    Abstract: A display apparatus, which adjusts a luminance value of an image, and a method for driving the same are disclosed. The display apparatus includes a first image conversion unit that converts first image data into a plurality of second image data each including a luminance value, a luminance analysis unit that determines quantities of luminance values of the second image data, and determines a distribution of the luminance values, and a luminance adjustment unit that adjusts the respective luminance values of the second image data based on the quantities.
    Type: Application
    Filed: December 7, 2011
    Publication date: February 7, 2013
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Yong-Seok Choi, Byung-Ki Chun, Jong-Woong Park, Joo-Hyung Lee
  • Publication number: 20120162208
    Abstract: A two-dimensional (2D)/three-dimensional (3D) image display device is disclosed. The 2D/3D image display device includes pixels each having a first subpixel and a second subpixel, wherein, in a 2D driving mode, the first subpixel and the second subpixel respectively display images for a same image signal based on data voltages corresponding to different gamma curves.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 28, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jong-Woong PARK, Joo-Hyung LEE, Geun-Young JEONG, Ji-Yeon YANG, Byung-Ki CHUN
  • Publication number: 20120098848
    Abstract: An image processing device, an image processing method, and a flat panel display are disclosed. According to some aspects, the image processing device may include: an image determining unit for determining a kind of an input image as one of a moving picture, a photograph image, and a user interface image. A legibility improving unit may be configured to generate a legibility improved image by extracting specific pixels from pixels included in the input image according to the kind of the input image that is determined by the image determining unit and by modifying gray scale values of the extracted specific pixels. According to some aspects, an illuminance sensor for sensing external illuminance, and a brightness improving unit for correcting a gamma curve according to the external illuminance sensed by the illuminance sensor is provided.
    Type: Application
    Filed: February 17, 2011
    Publication date: April 26, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Yong-Seok Choi, Geun-Young Jeong, Byung-Ki Chun, Jong-Woong Park, Joo-Hyung Lee
  • Publication number: 20120026204
    Abstract: A three-dimensional (3D) display is disclosed. One aspect includes: a display unit including a plurality of pixels and a slit barrier selectively shielding light irradiated from the display unit. The display unit additionally includes a controller controlling the turn-on and turn-off of the slit barrier and generating a first back light compensation signal compensating the reduction of the luminance of the display unit when the slit barrier is turned off and a second back light compensation signal compensating the reduction of the luminance of the display when the slit barrier is turned on to compensate the luminance reduction by the slit barrier. According to at least one aspect of the 3D display using a slit barrier scheme, it is possible to minimize the deterioration of luminance by a slit barrier.
    Type: Application
    Filed: January 14, 2011
    Publication date: February 2, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Byung-Ki Chun, Jong-Woong Park, Joo-Hyung Lee, Geun-Young Jeong, Yong-Seok Choi
  • Publication number: 20110291095
    Abstract: A display device including a display panel including a first pixel area and a second pixel area adjacent to the first pixel area; and a barrier positioned on a surface of the display panel, the barrier including: a first sub-barrier; and a second sub-barrier, wherein the first sub-barrier and the second sub-barrier are disposed between the first pixel area and the second pixel area to respectively cover an end of the first pixel area and an end of the second pixel area, in which the first pixel area and the second pixel area display a same first image, or the first pixel area displays any one of a first left-eye image and a first right-eye image and the second pixel area displays the other one of the first left-eye image and the first right-eye image.
    Type: Application
    Filed: December 22, 2010
    Publication date: December 1, 2011
    Applicant: Samsung Mobile Display CO., Ltd.
    Inventors: Jong-Woong PARK, Joo-Hyung Lee, Geun-Young Jeong, Byung-Ki Chun
  • Publication number: 20110193798
    Abstract: A touch sensing apparatus includes: a sense unit connected to a sense scan line and a sense line; a location detection unit that detects a location of a touch from a sense signal transmitted from the sense unit through the sense line; and a determination and trigger unit that determines whether a touch is sensed from the sense signal, generates a trigger signal that instructs whether or not to operate the location detection unit, and transmits the trigger signal to the location detection unit. The determination and trigger unit includes a logic operation circuit that generates a trigger signal for operation of the location detection unit when the sense signal implies that a touch is sensed while a sense driving signal is applied to at least one of a plurality of sense scan lines. The location detection unit is operated at a minimum to minimize power consumption.
    Type: Application
    Filed: November 15, 2010
    Publication date: August 11, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Zhi Feng Zhan, Jong Woong Park, Hee-Chul Hwang, Gaun-Young Jeong, Byung-Ki Chun