Patents by Inventor Cheol-Woo Park

Cheol-Woo Park 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: 20160065793
    Abstract: Gamma applied data generating circuit includes motion vector extractor, gamma pattern generator, first gamma applier, second gamma applier, and output converter. Motion vector extractor extracts motion vector of object. Gamma pattern generator generates first gamma pattern corresponding to first motion vector value and second gamma pattern corresponding to second motion vector value from first time point. Value of motion vector is changed from first motion vector value to second motion vector value at first time point. First and second gamma appliers generate first and second data by applying first and second gamma pattern to input data, respectively. Output converter outputs sum of first data times first weight and second data times second weight as gamma applied data. From first time point to second time point, output converter converts first weight from 1 to 0 and converts second weight from 0 to 1.
    Type: Application
    Filed: January 20, 2015
    Publication date: March 3, 2016
    Inventors: Dong-Gyu LEE, Joon-Chul GOH, Nam-Gon CHOI, Cheol-Woo PARK, Bong-Hyun YOU
  • Publication number: 20160063934
    Abstract: A method of driving a display panel is provided. The method includes generating first compensated and second compensated data based on input image data, outputting the first compensated data to a data driver during a first frame, outputting the first smoothing data to the data driver during a second frame subsequent to the first frame, and outputting the second compensated data to the data driver during an n-th frame subsequent to the second frame (where n is a natural number greater than two). The first smoothing data has a value between a value of the first compensated data and a value of the second compensated data.
    Type: Application
    Filed: July 21, 2015
    Publication date: March 3, 2016
    Inventors: DONG-HOON LEE, JUNG-WON KIM, CHEOL-WOO PARK, DONG-GYU LEE, JAE-HYUNG CHO, JA-KYOUNG JIN
  • Publication number: 20160044291
    Abstract: An external micro projector comprises a micro projector body. A magnetic block is disposed in the micro projector body. The magnetic block is used for magnetically adhering with a magnetic adhesion device in a smartphone. A Pogo Pin connector is disposed on the micro projector body. The Pogo Pin connector is used for being electrically connected to the smartphone.
    Type: Application
    Filed: April 23, 2014
    Publication date: February 11, 2016
    Inventors: Jinai Lin, Cheol Woo Park, Hongxia Leng
  • Publication number: 20160028873
    Abstract: An intelligent terminal with an electronic ink display device is provided. The intelligent terminal includes a terminal body and a display protection cover. A side of the display protection cover is coupled to a side of the terminal body. A front of the display protection cover has an electronic ink display screen disposed thereon, and the electronic ink display screen performs data communication with the terminal body via a spring probe, In the present inventions the electronic ink display screen is disposed on the display protection cover, so that the function of the E-Ink display can be achieved on a user's own mobile phone or other mobile terminals.
    Type: Application
    Filed: April 22, 2014
    Publication date: January 28, 2016
    Inventors: Jiamei DU, Cheol Woo PARK, Hongxia LENG, Jinai LIN, Wei YANG
  • Publication number: 20160027390
    Abstract: A display apparatus having an edge determiner configured to determine an edge area of the moving object based on moving direction and moving speed corresponding to the moving vector. The display apparatus also includes a gamma output controller configured to output normal high data of a high gamma curve and normal low data of a low gamma curve as gamma data of input data corresponding to a remaining area except for the edge area, and to output enhanced high data of the high gamma curve and enhanced low data of the low gamma curve as gamma data of input data corresponding to the edge area, in both time division method and space division method based on a spatiotemporal sequential pattern.
    Type: Application
    Filed: November 24, 2014
    Publication date: January 28, 2016
    Inventors: Byung-Sun KIM, Nam-Gon CHOI, Hong-Soo KIM, Ja-Kyoung JIN, Jung-Won KIM, Cheol-Woo PARK
  • Patent number: 9183249
    Abstract: One aspect of the invention provides a method for generating a path. The method includes: storing, in a storing unit, at least one path for each arbitrarily set section; setting, in a path setting unit, a main path from an origination to a destination input from a user and then displaying the main path through a display unit; searching, in a path generating unit, for at least one recommended path for one or more sections corresponding to a theme selected from the user and then displaying a searched recommended path through the display unit; receiving, in an input unit, a selection of one or more recommended paths; and generating, in the path generating unit, a final path based on the selection of one or more recommended paths for the one or more sections.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 10, 2015
    Assignee: Hyundai Motor Company
    Inventors: Cheol-Woo Park, Soon-Sung Kwon, Hyun Mi Kim
  • Patent number: 9171513
    Abstract: A luminance adjustment part includes a luminance determination part and a data compensation part. The luminance determination part may determine a control value for controlling luminance of a backlight assembly using linear image data that has a linear luminance profile and is generated by performing a de-gamma process on a first copy of input image data that has a nonlinear luminance profile. The compensation part may compensate pixel data that corresponds to pixels of a display panel using the control value, the pixel data being generated using a second copy of the input image data. Thus, color distortion of a displayed image as perceived by a viewer may be minimized when power consumption of a display apparatus that includes the display panel is decreased.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: October 27, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung-Taek Kim, Cheol-Woo Park, Yun-Ki Baek, Kyoung-Ju Shin, Hee-Soon Jeong
  • Patent number: 9137520
    Abstract: A stereoscopic image display device includes an image dividing module dividing an input image including a two dimensional (2D) image and a depth information image into a plurality of divisions, wherein each of the divisions includes a portion of the 2d image and a portion of the depth information image corresponding to the portion of the 2D image, an image rendering module rendering the divisions to output a plurality of rendered images, and a display panel assembly combining the plurality of rendered images.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: September 15, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyoung Ho Lim, Joo-Young Kim, Cheol-Woo Park, Jung-Taek Kim, Kyoung Won Lee
  • Publication number: 20150256821
    Abstract: A two-dimensional/three-dimensional switchable display apparatus includes: a display panel; a first substrate disposed on the display panel; a first electrode layer disposed on the first substrate and including a plurality of first electrodes; a second substrate disposed on the first substrate; a second electrode layer disposed on the second substrate and including a plurality of second electrodes; and a liquid crystal layer disposed between the first and second substrates. A plurality of lens units are formed in association with a first position of the liquid crystal layer when a lens forming voltage profile is applied to the first electrodes and a common voltage is applied to the second electrodes. When the common voltage is applied to the first electrodes and the lens forming voltage is applied to the second electrodes, the plurality of lens units are formed in association with a second position spaced apart from the first position.
    Type: Application
    Filed: May 20, 2015
    Publication date: September 10, 2015
    Inventors: Kyung-Ho Jung, Ji-Woong Jeong, Hae-Young Yun, Seung-Jun Jeong, Joo-Young Kim, Cheol-Woo Park, Il-Yong Yoon, Seung-Hoon Lee, Jin-Hwan Kim, Il-Joo Kim, Jung-Hwan Yi
  • Patent number: 9127215
    Abstract: Provided is a method for reducing the amount of organic acids in a hydrocarbon oil fraction by hydrogenating the organic acids in the hydrocarbon oil fraction under mild conditions. Provided is a new method able to overcome the problem of organic-acid-induced corrosion during the process of distillation, by using hydrogen or a hydrogen-containing mixed gas and a hydrogenation catalyst to subject the organic acids in the hydrocarbon oil fraction to hydrogenation at an appropriate temperature and pressure, thereby converting the same to hydrocarbons and so reducing the amount of organic acids in the hydrocarbon oil fraction.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: September 8, 2015
    Assignees: SK INNOVATION CO., LTD., SK ENERGY CO., LTD.
    Inventors: Jin Kyu Choi, Cheol Woo Park, Tae Won Uhm, Il Yong Jeong, Ha Na Song, Do Woan Kim, Hee Jung Jeon, Gyung Rok Kim, Cheol Joong Kim, Do Hyoun Kim, Chang Woo Joo
  • Publication number: 20150220545
    Abstract: One aspect of the invention provides an indexing system of space of interest (SOI) defining at least a two-dimensional object. The system includes: a location data extractor configured calculate an index point for the space of interest; a map tile number converter configured to map the index point to a tile that lies within a plurality of tiles; and an indexer configured to index the space of interest based on the determined tile.
    Type: Application
    Filed: April 3, 2015
    Publication date: August 6, 2015
    Inventors: Cheol-Woo Park, Hong-Hoi Kim
  • Patent number: 9088788
    Abstract: A method of displaying a three-dimensional image, the method includes sequentially displaying a first three-dimensional image on a plurality of horizontal lines of a display panel along a scan direction, and simultaneously displaying a black image on the horizontal lines of the display panel, the black image being inserted between the three-dimensional images having different images.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 21, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyoung-Ju Shin, Jung-Won Kim, Cheol-Woo Park, Hee-Soon Jeong
  • Patent number: 9087478
    Abstract: A display device and a method of driving a display device including: storing information on a stitch pattern; setting a data processing region disposed in a vicinity of a horizontal center line of a display panel and including a plurality of pixels; and performing data processing of changing gray of data for a portion of the plurality of pixels of the data processing region according to the information on the stitch pattern. The display panel includes a plurality of pixels arranged in a form of a matrix, a plurality of first data lines disposed in a first display panel region on a first side of the horizontal center line, and a plurality of second data lines disposed in a second display panel region on a second side of the horizontal center line opposite the first side.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: July 21, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Woong Jeong, Nam-Gon Choi, Geun Jeong Park, Dong-Won Park, Yong Jun Jang, Cheol Woo Park, Jeong-Hun So, Hyun Dae Lee
  • Publication number: 20150194110
    Abstract: A liquid crystal display includes: a display panel including data lines, scan lines and a plurality of pixels connected to the data lines and the scan lines; a scan driver configured to supply scan signals to the scan lines; a data driver configured to supply data voltages to the data lines; and a timing controller configured to control operation timings of the scan driver and the data driver, where the timing controller is configured to output a plurality of scan output enable signals to the scan driver, and the scan driver is configured to supply odd scan signals to odd scan lines based on a first scan output enable signal of the scan output enable signals and to supply even scan signals to even scan lines based on a second scan output enable signal of the scan output enable signals.
    Type: Application
    Filed: November 5, 2014
    Publication date: July 9, 2015
    Inventors: Su-Hyeong PARK, Ji-Myoung SEO, Ho-Yong JUNG, Eun-Ho LEE, Cheol-Woo PARK
  • Publication number: 20150194122
    Abstract: A method of driving a display panel and display device including the same are disclosed. In one aspect, the method comprises providing input image data, generating a gamma reference voltage, generating a data voltage based on the gamma reference voltage and input image data, providing the data voltage to the display panel, and determining whether the input image data represents a still image or a video image. The method further comprises substantially periodically and alternately generating first and second common voltages when the input image data represents the still image, and providing the first and second common voltages to the display panel.
    Type: Application
    Filed: September 30, 2014
    Publication date: July 9, 2015
    Inventors: Sang-Mi Kim, Kyoung-Won Lee, Su-Hyeong Park, Cheol-Woo Park, Ho-Yong Jung
  • Patent number: 9063360
    Abstract: A two-dimensional/three-dimensional switchable display apparatus includes: a display panel; a first substrate disposed on the display panel; a first electrode layer disposed on the first substrate and including a plurality of first electrodes; a second substrate disposed on the first substrate; a second electrode layer disposed on the second substrate and including a plurality of second electrodes; and a liquid crystal layer disposed between the first and second substrates. A plurality of lens units are formed in association with a first position of the liquid crystal layer when a lens forming voltage profile is applied to the first electrodes and a common voltage is applied to the second electrodes. When the common voltage is applied to the first electrodes and the lens forming voltage is applied to the second electrodes, the plurality of lens units are formed in association with a second position spaced apart from the first position.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: June 23, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung-Ho Jung, Ji-Woong Jeong, Hae-Young Yun, Seung-Jun Jeong, Joo-Young Kim, Cheol-Woo Park, Il-Yong Yoon, Seung-Hoon Lee, Jin-Hwan Kim, Il-Joo Kim, Jung-Hwan Yi
  • Patent number: 9041748
    Abstract: A method of driving a display device includes driving a light source unit with a first driving ratio and outputting received image data to a display panel of the display device, storing the received image data upon receipt of a signal indicating a still image is displayed, calculating a second driving ratio of the light source unit from a representative value of the stored image data, compensating the stored image data according to the second driving ratio, driving the light source unit with the second driving ratio that is lower than the first driving ratio, and outputting the compensated image data to the display panel.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: May 26, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyoung Ju Shin, Jung-Taek Kim, Cheol Woo Park, Yun-Ki Baek, Bong Hyun You, Kyoung Won Lee
  • Publication number: 20150130910
    Abstract: A three-dimensional image display device and a method for displaying a three-dimensional image, and particularly relates to a three-dimensional image display device improving movement degradation and a method for displaying a three-dimensional image. A three-dimensional image display device includes: a display panel; a movement determining unit determining whether an object of a 3D image moved in a direction perpendicular to a surface of the display panel based on image information; a hole-filling unit filling a hole generated according to the movement of the object with an edge region of the object to compensate a movement degradation when it is determined that the object moved in the direction perpendicular to the surface of the display panel; and a 3D input image signal generator generating a 3D input image signal based on the image information compensated with the movement degradation.
    Type: Application
    Filed: December 13, 2013
    Publication date: May 14, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Mun-San PARK, Cheol Woo PARK
  • Publication number: 20150130851
    Abstract: A display device includes: a display unit including a plurality of pixels and a plurality of division areas; a data driver configured to apply a data signal corresponding to image data to the display unit, and to control a slew rate of the data signal, based on a bias voltage; and a bias controller configured to control the data driver so that the slew rate of the data signal is changed for each division area, based on a luminance variation of the image data corresponding to each of the division areas.
    Type: Application
    Filed: March 17, 2014
    Publication date: May 14, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ji-Woong Jeong, Cheol-Woo Park, Eun-Ho Lee
  • Publication number: 20150123961
    Abstract: A liquid crystal display includes: a display panel; a signal controller configured to receive an input image signal and an input control signal, output an output image signal and an output control signal, and determine a charge sharing between two or more data lines having voltages in the same polarity; and a data driver configured to convert, based on the output control signal, the image signal into data voltages to be supplied to the data lines connected to the pixels, the data voltages having positive levels and negative levels. The data driver is further configured to perform a first charge sharing by short-circuiting first and second data lines that are adjacent to each other, and a second charge sharing by short-circuiting third and fourth data lines having data voltages in the same polarity, wherein the first charge sharing and the second charge sharing may not temporally overlap with each other.
    Type: Application
    Filed: October 24, 2014
    Publication date: May 7, 2015
    Inventors: Su Hyeong PARK, Ung Gyu MIN, Ji Myoung SEO, Cheol Woo PARK, Ho Yong JUNG