Patents by Inventor Jang-Doo Lee

Jang-Doo Lee 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: 8115805
    Abstract: A stereoscopic image display that displays a stereoscopic image using a barrier operated by a time division method. A display panel time-divides first and second images having parallax therebetween and sequentially displays the first and second images. A barrier is located in front of the display panel and includes first and second image transmission regions transmitting the first and second images. A barrier driver controls opening and shutting of the first and second image transmission regions in synchronization with first and second video signals input thereto. The barrier driver extracts all video signals displayed on one picture from the input video signals as unit video signals and generates a reference signal for the barrier operation based on the unit video signals.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: February 14, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hyoung-Wook Jang, Jang-Doo Lee, Hui Nam, Beom-Shik Kim, Myoung-Seop Song
  • Patent number: 8111906
    Abstract: A stereoscopic image display device is provided. The stereoscopic image display device includes a display unit including a plurality of pixels arranged in a matrix, the respective pixels including right/left-eye pixels arranged in a row direction, an area detector for detecting first data respectively corresponding to at least a part of the pixels from a plurality of input data, a data converter for converting the first data to the right/left-eye data corresponding to the right/left-eye pixels, a data combiner for combining stereoscopic image data by arranging the right/left-eye data, and a data driver for applying a data signal corresponding to the stereoscopic image data to the display unit.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: February 7, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Myoung-Seop Song, Jang-Doo Lee, Hyoung-Wook Jang, Woo-Jong Lee, Hyun-Sook Kim
  • Publication number: 20120026155
    Abstract: There is provided an organic light emitting display. The organic light emitting display includes a display unit including pixels coupled to scan lines, control lines, and data lines; a control line driver for providing control signals to the pixels through the control lines; a scan driver for providing scan signals to the pixels through the scan lines; a data driver for providing data signals to the pixels through the data lines; a first power source driver for applying a first power to the pixels of the display unit; a second power source driver for applying a second power to the pixels of the display unit; and a timing controller for controlling the control line driver, the power source drivers, the scan driver, and the data driver. The timing controller is configured to determine a refresh rate of input data to control a length of an emission period in a frame.
    Type: Application
    Filed: January 25, 2011
    Publication date: February 2, 2012
    Inventors: Naoaki Komiya, Jang-Doo Lee
  • Publication number: 20120026207
    Abstract: There is provided an organic light emitting display capable of minimizing noise. A method of driving the organic light emitting display includes setting pixels included in horizontal blocks into a non-emission state, the pixels charging voltages corresponding data signals, the pixels starting to emit light at different times in units of the horizontal blocks, and emitting light from the pixels according to the charging voltages.
    Type: Application
    Filed: February 1, 2011
    Publication date: February 2, 2012
    Inventors: Naoaki Komiya, Jang-Doo Lee
  • Patent number: 8059063
    Abstract: A 3D image display device includes a display panel, a barrier, a controller, and a barrier driver. The barrier includes: a first substrate; a plurality of first electrodes disposed on the first substrate and extended in a first direction; a plurality of second electrodes respectively disposed between adjacent first electrodes; a second substrate opposing the first substrate; a plurality of third electrodes disposed on the second substrate and extended in a second direction crossing the first direction; a plurality of fourth electrodes respectively disposed between adjacent third electrodes; and a liquid crystal layer disposed between the first and second substrates. The barrier driver receives a barrier control signal from the controller, and applies a reference voltage to the first electrodes, the second electrodes, the third electrodes, and/or the fourth electrodes, and applies a liquid crystal driving voltage to one or more other ones of the first to fourth electrodes.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: November 15, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hui Nam, Jang-Doo Lee, Hyoung-Wook Jang, Beom-Shik Kim, Myoung-Seop Song
  • Patent number: 8059118
    Abstract: A stereoscopic image display device for displaying a three dimensional (3D) stereoscopic image in real-time by using a 3D graphic contained within a 2D image. The stereoscopic image display device includes a controller, a 3D graphic processor, a driver, and a display unit. The controller receives 3D graphic data and a synchronization signal, and outputs a control signal and the 3D graphic data. The 3D graphic processor generates a plurality of stereoscopic matrices used to generate 3D stereoscopic image data for a plurality of viewing points according to the control signal, and transforms the 3D graphic data into 3D stereoscopic image data using the plurality of stereoscopic matrices. The driver generates a driving signal based on the image data output from the 3D graphic processor and the output control signal. The display unit displays an image corresponding to the image data according to the driving signal.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: November 15, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Myoung-Seop Song, Jang-Doo Lee, Hyoung-Wook Jang, Hag-Keun Kim, Duck-Myung Lee, Han-Jun Choi, Hyun-Sook Kim, Woo-Jong Lee
  • Patent number: 8044881
    Abstract: A system and method for driving a stereoscopic image display device includes, during a first period wherein no image is displayed, writing a first data signal corresponding to a first image on a first display cell and writing a second data signal corresponding to a second image on the second display cell. During a second period, the first image and the second image are displayed by driving the barrier to become a first format. During a third period in which no image is displayed, the second data signal is written on the first display cell and the first data signal is written on the second display cell. During a fourth period, the first and second images are displayed by driving the barrier to become a second format. The barrier intercepts and transmits light at different angles in the first format than in the second format.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: October 25, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hui Nam, Jang-Doo Lee, Hyoung-Wook Jang, Beom-Shik Kim, Myoung-Seop Song
  • Patent number: 8040371
    Abstract: A three-dimensional display device according to the present invention includes a panel that time-shares images and displays left and right eye images, a panel control unit for controlling the panel by applying a display control signal that includes vertical and horizontal signals to the panel, a barrier facing the panel and separating the images of the panel into user left and right eye images, and a barrier control unit for controlling the barrier. The panel can be converted between a first mode of a portrait-type view and a second mode of a landscape-type view, and the barrier may be operated corresponding to the mode conversion of the panel.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: October 18, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Beom-Shik Kim, Jang-Doo Lee, Hyoung-Wook Jang, Hui Nam, Myoung-Seop Song
  • Patent number: 8018482
    Abstract: A three-dimensional display device includes an image display unit and a light control unit facing the image display unit. The light control unit includes first and second substrates facing each other, a 2-viewpoint electrode layer and a multi-viewpoint electrode layer located between the first and second substrates, and a liquid crystal layer located between the first and second substrates.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: September 13, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Beom-Shik Kim, Jang-Doo Lee, Hyoung-Wook Jang, Hui Nam, Myoung-Seop Song
  • Patent number: 7916222
    Abstract: The stereoscopic display device includes a display unit including a first pixel group for displaying a first image and a second pixel group for displaying the second image, a barrier having transparent regions and opaque regions such that the first image and the second image are observed through the transparent regions at different points and a light source for supplying light to the display unit. The light source has the different brightness between the first mode and the second mode.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: March 29, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hyoung-Wook Jang, Jang-Doo Lee, Hui Nam, Beom-Shik Kim, Myoung-Seop Song
  • Patent number: 7733296
    Abstract: A three-dimensional display device includes an image display portion for time-sharing a left eye image and a right eye image, and a parallax barrier for separating the left and right eye images provided from the image display portion into a direction of a left eye and a right eye of a user, respectively, by using a first and a second electrode set. A method includes applying a first driving voltage to the first electrode set during a first period, and applying a second driving voltage to the second electrode set during a second period. The second driving voltage has a level different from that of the first driving voltage.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: June 8, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hyo-Jin Lee, Jang-Doo Lee, Ja-Seung Ku, Hui Nam, Hyoung-Wook Jang, Beom-Shik Kim, Myoung-Seop Song
  • Patent number: 7679692
    Abstract: A stereoscopic image display device including a light source and a light controller for selectively transmitting or blocking light provided by the light source. The light controller includes a first substrate, and first and second electrodes alternatively formed on the first substrate along a first direction. The first and second electrodes are spaced apart from each other at a predetermined interval. The first and second electrodes are electrically connected, respectively, to first and second connection electrodes. The light controller also includes a second substrate which is substantially parallel to the first substrate, and third and fourth electrodes alternately formed on the second substrate along a second direction. The third and fourth electrodes are spaced apart from each other at a predetermined interval. The third and forth electrodes are electrically connected, respectively, to third and fourth connection electrodes.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: March 16, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hui Nam, Jang-Doo Lee, Hyoung-Wook Jang, Myoung-Seop Song, Beom-Shik Kim
  • Patent number: 7619815
    Abstract: A three-dimensional display device having a capacity to display three-dimensional images with a resolution level of two-dimensional images. The three-dimensional display device includes an image display unit where left sub-pixels corresponding to a left-eye image part and right sub-pixels corresponding to a right-eye image part are formed in a pattern in a sub-pixel array having rows and columns respectively arranged in a row direction and a column direction. A parallax barrier, which is adjacent to the image display unit, has a plurality of light interception portions and light transmission portions. Centers of the light transmission portions in the column direction of the sub-pixel array are offset from each other in the row direction of the sub-pixel array.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: November 17, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hui Nam, Jang-Doo Lee, Hyoung-Wook Jang, Myoung-Seop Song, Beom-Shik Kim
  • Publication number: 20090167969
    Abstract: A stereoscopic image display device including a light source and a light controller for selectively transmitting or blocking light provided by the light source. The light controller includes a first substrate, and first and second electrodes alternatively formed on the first substrate along a first direction. The first and second electrodes are spaced apart from each other at a predetermined interval. The first and second electrodes are electrically connected, respectively, to first and second connection electrodes. The light controller also includes a second substrate which is substantially parallel to the first substrate, and third and fourth electrodes alternately formed on the second substrate along a second direction. The third and fourth electrodes are spaced apart from each other at a predetermined interval. The third and forth electrodes are electrically connected, respectively, to third and fourth connection electrodes.
    Type: Application
    Filed: October 10, 2008
    Publication date: July 2, 2009
    Inventors: Hui Nam, Jang-Doo Lee, Hyoung-Wook Jang, Myoung-Seop Song, Beom-Shik Kim
  • Patent number: 7511774
    Abstract: A three-dimensional display device includes an image display portion displaying left and right eye images, and a parallax barrier directing the left and right eye images respectively towards left and right eyes of a user. The parallax barrier includes first electrodes located on a first substrate, a first connection electrode electrically connecting the first electrodes, a first terminal electrode connected to an end of the first connection electrode, a first connection terminal connected to the first terminal electrode, second electrodes located between the first electrodes, a second connection electrode electrically connecting the second electrodes, a second connection terminal connected to an end of the second connection electrode, a common electrode located on a second substrate facing the first substrate, and a liquid crystal layer disposed between the first and second substrates. The first terminal electrode has a lower electric resistance than the first electrodes and the second electrodes.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: March 31, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hyo-Jin Lee, Jang-Doo Lee, Hyoung-Wook Jang, Hui Nam, Beom-Shik Kim, Myoung-Seop Song, Ja-Seung Ku
  • Patent number: 7505203
    Abstract: A three-dimensional display device including an image display unit having first pixels corresponding to left-eye images and second pixels corresponding to right-eye images. The first and second pixels define an image formation plane for substantially forming the images. A parallax barrier is placed in front of the image display unit, and has light interception portions and light transmission portions alternately and repeatedly arranged in a horizontal direction of the image display unit to separate left-eye image light beams from the first pixels and right-eye image light beams from the second pixels in directions of left and right eyes of a viewer. The light interception portions and the light transmission portions define an image separation plane for substantially separating the light beams.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: March 17, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hui Nam, Jang-Doo Lee, Hyoung-Wook Jang, Beom-Shik Kim, Myoung-Seop Song
  • Patent number: 7483209
    Abstract: A three dimensional display device includes an image display unit. The image display unit includes pixels having first sub-pixels corresponding to a left-eye image and second sub-pixels corresponding to a right-eye image. The three dimensional display device also includes a parallax barrier which is located proximately to the image display unit. The parallax barrier includes light interception portions and light transmission portions alternately and repeatedly arranged in a direction. The parallax barrier also includes color filters arranged between the light interception portions and the light transmission portions. The color filters control paths of lights from the pixels.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: January 27, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hui Nam, Jang-Doo Lee, Hyoung-Wook Jang, Beom-Shik Kim, Myoung-Seop Song
  • Patent number: 7453529
    Abstract: A stereoscopic image display device including a light source and a light controller for selectively transmitting or blocking light provided by the light source. The light controller includes a first substrate, and first and second electrodes alternatively formed on the first substrate along a first direction. The first and second electrodes are spaced apart from each other at a predetermined interval. The first and second electrodes are electrically connected, respectively, to first and second connection electrodes. The light controller also includes a second substrate which is substantially parallel to the first substrate, and third and fourth electrodes alternately formed on the second substrate along a second direction. The third and fourth electrodes are spaced apart from each other at a predetermined interval. The third and forth electrodes are electrically connected, respectively, to third and fourth connection electrodes.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: November 18, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hui Nam, Jang-Doo Lee, Hyoung-Wook Jang, Myoung-Seop Song, Beom-Shik Kim
  • Publication number: 20080218448
    Abstract: Disclosed are an organic electro luminescence display and a driving method of the same. The present invention provides an organic electro luminescence display including a pixel unit for displaying an image to correspond to a scan signal, a light emission control signal and a data line. The image is composed of a plurality of frames. The organic electro luminescence display of the present invention includes a scan driver for supplying the scan signal and the light emission control signal to the pixel unit, a data driver for generating a data signal with a video data to supply the generated data signal to the pixel unit, a control unit for controlling a pulse width of the light emission control signal using a frame data which is the sum of the video data inputted to one frame and controlling one frame time according to the size of the frame data, and a power supply unit for supplying a first power and a second power to the pixel unit.
    Type: Application
    Filed: October 17, 2007
    Publication date: September 11, 2008
    Inventors: Young-jong Park, Jang-doo Lee
  • Publication number: 20080204438
    Abstract: A display driven by a data signal and a light emission signal may be controlled by a control system including a first through fourth controller. The first controller may select a gamma value in accordance with ambient illumination and output a corresponding gamma compensation signal to control a gradation voltage of input image data. The second controller may compare the ambient illumination with a reference value, generate a selection signal in response thereto, and provide changed image data obtained by changing input image data in accordance with the selection signal as the data signal. The third controller may apply a scaling factor to the input image data generated from extracted features related to the input image data and a scale ratio obtained from the extracted features, and output scaled image data as the data signal. The fourth controller may control a pulse width of the emission control signal.
    Type: Application
    Filed: February 21, 2008
    Publication date: August 28, 2008
    Inventors: June-young Song, Young-jong Park, Jang-doo Lee