Patents by Inventor Won Woo Jang

Won Woo Jang 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: 20170292774
    Abstract: A refrigerator including a rotatable door handle. The door handle is rotatably coupled to a refrigerator door through a through-hole on the door. The door handle includes a grip portion, a connection portion fastened to the grip portion, and an insertion portion protruding from the connection portion. The insertion portion includes an engaging projection protruding outward from a peripheral surface of the insertion portion. The door handle includes two stoppers. During the process of assembling the door handle with the door, the engaging projection may be rotated in the first direction until it engage with a first stopper to. In an assembled state, the door is opened or closed when the door handle is rotated in the second direction. The second stopper can stop rotation of the door handle in the second direction when the engaging projection engages with the second stopper.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 12, 2017
    Inventor: Won Woo JANG
  • Patent number: 9710106
    Abstract: According to aspects of embodiments of the present invention a touch screen display device includes: a touch sensor; a touch controller configured to detect a position touched on the touch sensor; and a touch correcting unit configured to correct an initial touch position detected by the touch controller to a final touch position, wherein the touch correcting unit comprises: a first computing unit configured to convert the initial touch position to a temporary touch position; a second computing unit configured to compute a touch movement amount between the initial touch position and the temporary touch position; and a third computing unit configured to compute the final touch position by subtracting the touch movement amount from the initial touch position.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: July 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byung-Ki Chun, Won-Woo Jang, Jeong-Hun So
  • Patent number: 9626915
    Abstract: A display device has a plurality of pixels, some of which have different sub-pixel arrangements. A first pixel includes only three sub-pixels to emit red, green, and white light, respectively. A second pixel neighbors the first pixel and includes only three sub-pixels to emit blue, green, and white light, respectively.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: April 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Woong Park, Won-Woo Jang
  • Patent number: 9576531
    Abstract: A display device includes a pixel unit including scan lines, data lines crossing the scan lines, and pixels connected to the scan lines and the data lines; a timing control unit configured to receive first data from an outside; a conversion unit configured to receive the first data from the timing control unit, to extract luminance components of the first data corresponding to the pixels to determine luminance distribution of the first data, to divide the luminance distribution into a plurality of luminance distribution ranges, and to convert the first data into second data by regulating an input gray level of the first data based on a conversion equation corresponding to a variation between data of the luminance distribution ranges; and a data drive unit configured to receive the second data from the conversion unit and to provide the second data to the data lines.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: February 21, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong-Woong Park, Dong-Wook Yang, Won-Woo Jang, Byung-Ki Chun, Yong-Seok Choi
  • Publication number: 20160320916
    Abstract: A touch screen display device includes: an image corrector for converting first image data for displaying on pixels to second image data for displaying on the pixels, and for generating a lookup table based on the conversion; and a processor for correcting second touch positions based on the second image data to first touch positions based on the first image data using the lookup table. A method of driving a touch screen display device includes converting first image data for displaying on pixels to second image data for displaying on the pixels, generating a lookup table based on the conversion, and correcting second touch positions based on the second image data to first touch positions based on the first image data by using the lookup table.
    Type: Application
    Filed: April 28, 2016
    Publication date: November 3, 2016
    Inventors: Byung Ki Chun, Joo Hyung Lee, Won Woo Jang
  • Publication number: 20160321973
    Abstract: An image shift controller and a display device including the same, the image shift controller including a starting position generator configured to generate image position information using sample data of first image data, and a shift determiner configured to determine a movement direction and a movement amount of an image using the image position information.
    Type: Application
    Filed: April 19, 2016
    Publication date: November 3, 2016
    Inventors: Byung Ki Chun, Hyun Seuk Yoo, Jun Gyu Lee, Won Woo Jang, Yong Seok Choi
  • Publication number: 20160179269
    Abstract: According to aspects of embodiments of the present invention a touch screen display device includes: a touch sensor; a touch controller configured to detect a position touched on the touch sensor; and a touch correcting unit configured to correct an initial touch position detected by the touch controller to a final touch position, wherein the touch correcting unit comprises: a first computing unit configured to convert the initial touch position to a temporary touch position; a second computing unit configured to compute a touch movement amount between the initial touch position and the temporary touch position; and a third computing unit configured to compute the final touch position by subtracting the touch movement amount from the initial touch position.
    Type: Application
    Filed: June 16, 2015
    Publication date: June 23, 2016
    Inventors: Byung-Ki Chun, Won-Woo Jang, Jeong-Hun So
  • Publication number: 20160118022
    Abstract: A data signal processing device includes a load calculator and a compensation processor. The load calculator calculates an on-pixel rate (OPR) based on image data signals and positional weight values. The positional weight values are determined based on locations of pixels in a display panel. The OPR is proportional to a frame luminance load, which corresponds to a sum of driving currents for the pixels to emit light in each of a plurality of frames. The compensation processor compensates distorted luminance caused by the frame luminance load based on the OPR.
    Type: Application
    Filed: April 30, 2015
    Publication date: April 28, 2016
    Inventors: Byung-Ki CHUN, Jae-Shin KIM, Jeong-Hun SO, Won-Woo JANG
  • Patent number: 9286856
    Abstract: A display device is disclosed. The display device has pixels which include three color sub-pixels, for example, red, green, and blue sub-pixels. The pixels also include a white sub-pixel. The display calculates data for the red, green, blue, and white sub-pixels based on data for red, green, and blue sub-pixels.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: March 15, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Woong Park, Won-Woo Jang, Ju-Hyung Lee
  • Patent number: 9245472
    Abstract: A display device including a data mapping unit configured to identify a minimum value of the three-color input data corresponding to red, green, and blue (RGB), to determine white output color data by multiplying the identified minimum value by a gain ratio, and to subtract the white output color data from each of the three-color input data to determine RGB output color data, a gain adjustment unit configured to determine a preliminary gain ratio to minimize standard deviations of each of the white and RGB output color data, and to change a preliminary gain ratio based on an accumulated sum of color data used for respective sub-pixels in a previously displayed image to determine the gain ratio, and a display unit including unit pixels, each including RGB and white sub-pixels, and configured to display an image which corresponds to the and RGB output color data.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: January 26, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won-Woo Jang, Jong-Woong Park
  • Patent number: 9196193
    Abstract: A display device includes a data mapping unit for extracting a minimum value among three-color input data which respectively correspond to red, green, and blue, determining white color output data by multiplying the extracted minimum value by a gain ratio, and determining red, green, and blue color output data respectively by subtracting the white color output data from the three-color input data; and a gain adjustment unit for determining the gain ratio to minimize a standard deviation respectively for the white color output data and the red, green, and blue color output data.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: November 24, 2015
    Assignee: Samsung Dislay Co., Ltd.
    Inventors: Won-Woo Jang, Jong-Woong Park
  • Patent number: 9142180
    Abstract: A display apparatus having improved display quality is disclosed. According to one aspect, the display apparatus includes a display panel including first to Mth data lines extending in a first direction, where M is an integer greater than 2, first to Nth scan lines extending in a second direction, where N is an integer greater than 2, and a plurality of pixel regions defined by one or more of the data lines and one or more of the scan lines. An image data processor is configured to process input image signals and output corrected input image signals, and a data driver is configured to receive the corrected input image signals and supply the same to the first to Mth data lines. The plurality of pixel regions include first to Mth pixel arrays extending in parallel, and the image data signal processor is configured to output the corrected input image signals to adjust a gray value applied to at least one of the first pixel array and the Mth pixel array.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: September 22, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Yeon Yang, Won-Woo Jang, Geun-Young Jeong
  • Patent number: 9117398
    Abstract: A method for rendering input data into target data includes: applying a pattern detecting window to the input data about an input pixel to detect a green light emitting pattern within the window; determining whether the detected green light emitting pattern belongs to a threshold pattern in which at least two green subpixels that are contiguously arranged emit light; and rendering the target data for a red or blue target subpixel having a first color by: applying a first filter to the input data of the first color red or blue input subpixels that are near the input pixel when the detected green light emitting pattern does not belong to the threshold pattern; and applying a second filter that is different from the first filter to the input data of the first color red or blue input subpixels when the detected green light emitting pattern belongs to the threshold pattern.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: August 25, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Geun-Young Jeong, Won-Woo Jang, Jong-Woong Park, Joo-Hyung Lee
  • Publication number: 20150228224
    Abstract: A display device includes a pixel unit including scan lines, data lines crossing the scan lines, and pixels connected to the scan lines and the data lines; a timing control unit configured to receive first data from an outside; a conversion unit configured to receive the first data from the timing control unit, to extract luminance components of the first data corresponding to the pixels to determine luminance distribution of the first data, to divide the luminance distribution into a plurality of luminance distribution ranges, and to convert the first data into second data by regulating an input gray level of the first data based on a conversion equation corresponding to a variation between data of the luminance distribution ranges; and a data drive unit configured to receive the second data from the conversion unit and to provide the second data to the data lines.
    Type: Application
    Filed: December 12, 2014
    Publication date: August 13, 2015
    Inventors: Jong-Woong PARK, Dong-Wook YANG, Won-Woo JANG, Byung-Ki CHUN, Yong-Seok CHOI
  • Patent number: 9092881
    Abstract: A color interpolation apparatus includes a threshold value determining unit that calculates a luminance value of each area set based on each pixel of a Bayer pattern image and determines edge determining threshold values, an edge information calculating unit that calculates pixel value variations in multiple directions of the set areas by using pixel values of pixels included in each area and edge information regarding each area by using the multiple directional pixel value variations, an area determining unit that determines an edge type by using the edge determining threshold values and the edge information, and a color interpolation unit that applies a color interpolation filter previously set according to the edge type to a corresponding area according to the edge type. The area determining unit uses green information or interpolated green information of a central pixel depending on whether or not a color of the central pixel is green.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: July 28, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Boo Dong Kwak, Bong Soon Kang, Hyun Soo Kim, Won Woo Jang, Kyung Rin Kim, Won Tae Choi, Joo Young Ha
  • Patent number: 9013503
    Abstract: A device includes converters for converting first image data of an RGB-type into second image data of a YCbCr-type, into third image data of the YCbCr-type, and into fourth image data of the RGB-type, wherein a CbCr-coordinate system has six regions defined by coordinates of a reference color and of six primary colors, and when coordinates of the second image data are located in a region defined by coordinates of the reference color, a first primary color, and a second primary color, the coordinates of the second image data are determined by the coordinates of the reference color, the first primary color, the second primary color, coordinates of a target reference color corresponding to those of the reference color, coordinates of a first target primary color corresponding to those of the first primary color, and coordinates of a second target primary color corresponding to those of the second primary color.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: April 21, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Won-Woo Jang
  • Publication number: 20150097876
    Abstract: An image sticking controller includes a gamma conversion unit configured to gamma-convert gray scale values respectively corresponding to a plurality of pixels, and to output the gamma-converted gray scale values as gamma conversion values, a data accumulation unit configured to accumulate the gamma conversion values into an accumulation data, the accumulation data including a minimum accumulation value, a maximum difference value indicating a difference between the minimum accumulation value and a maximum accumulation value, and difference values indicating respective differences between the minimum accumulation value and an accumulation value of each of the pixels, an image sticking analysis unit configured to output an image sticking decrease control signal when the maximum difference value is greater than a reference value, and a data conversion unit configured to convert the gray scale values in response to the image sticking decrease control signal, such that image sticking is reduced.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 9, 2015
    Inventors: Jong-Woong PARK, Won-Woo JANG, Yong-Seok CHOI, Joo-Hyung LEE
  • Patent number: 9001142
    Abstract: A device for mapping a color gamut includes a color gamut determinator and a color gamut mapper. The color gamut determinator determines an output color gamut using a gain value corresponding to information of a first color gamut, information of a second color gamut and a control condition. The color gamut mapper converts the color gamut of an input image data into the output color gamut. Accordingly, it is possible to provide a device and method for mapping a color gamut, which can determine an optimal color gamut corresponding to a change in control condition, and accordingly improve color accuracy and color reproducibility.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: April 7, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Woong Park, Yong-Seok Choi, Won-Woo Jang, Byung-Ki Chun, Joo-Hyung Lee
  • Patent number: 9001165
    Abstract: A method of operating an organic light emitting display device including a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel, wherein a first gamma voltage for the red, green and blue sub-pixels and a second gamma voltage for the white pixel are adjusted such that a sum of maximum luminances of the red, green and blue sub-pixels is substantially equal to a luminance of a white color displayed by the organic light emitting display device. With respect to a white portion of input data, a ratio of first data of the red, green and blue sub-pixels to second data of the white sub-pixel is adjusted based on a first accumulated driving amount of the red, green and blue sub-pixels and a second accumulated driving amount of the white sub-pixel.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: April 7, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Woong Park, Won-Woo Jang, Joo-Hyung Lee
  • Publication number: 20150022539
    Abstract: An image processing apparatus including a display unit including pixels and more than one core processor. Each core processor includes: a diffusion module changing first pixel data of an image signal divided according to rows and then outputting it using a threshold value corresponding to the first pixel data, generating diffusion data using a difference between the changed first pixel data and the first pixel data, and changing second pixel data and third pixel data using the diffusion data; a memory storing an image signal including the image signal divided according to rows and then outputting it and the pixel data changed in the diffusion module; and a memory controller reading an image signal including pixel data changed in the diffusion module and displaying the read image signal to the display unit.
    Type: Application
    Filed: April 21, 2014
    Publication date: January 22, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Kamal HASSAN, Hee-Chul WHANG, Won-Woo JANG