Patents Examined by Sepideh Ghafari
  • Patent number: 8054308
    Abstract: A driving method of an LCD device adapted to improve the quality of pictures is disclosed. The driving method includes: deriving a frame detection signal from a data enable signal and a data clock signal; simultaneously deriving a start signal and a first gate clock signal from the frame detection signal and the data clock signal; and deriving a second gate clock signal from the first gate clock signal and the data clock signal. The first gate clock signal is identical with the start signal in a start time point of enable interval.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: November 8, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Sang Hoon Lee, Hwa Young Kim, Jong Woo Kim
  • Patent number: 8035607
    Abstract: The invention provides an image display apparatus that includes: a frame memory into which inputted image data is stored; a statistical computation section that performs statistical computation on a gradation value of each pixel on the basis of the image data for each frame image; a correction section that corrects the image data stored in the frame memory on a frame-by-frame basis by means of a statistical computation result calculated at the statistical computation section; an image display section that performs image display by means of the image data corrected at the correction section; a light source control section that calculates a control amount applied to the amount of light emitted from a light source on the basis of the corrected image data and then controls the amount of light emitted from the light source in accordance with the control amount; and a still picture judgment section that makes a judgment as to whether the frame image constitutes a still picture or not.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: October 11, 2011
    Assignee: Sony Corporation
    Inventor: Takashi Otome
  • Patent number: 8035663
    Abstract: With the use of pixel control parts for controlling display elements in response to display data using a display-use voltage source and display control parts for supplying the display data to the pixel control parts, the display data is displayed on a display part. Further, the display data is corrected by detecting states of the display elements. A voltage of the display-use voltage source is preliminarily set to a fixed higher voltage, and a gray scale of the display data is elevated in response to a degradation state of the display element. Accordingly, it is possible to perform a display while maintaining the maximum brightness even when the display element is degraded. Further, the contrast can be maintained by correcting the gray scales of the display data by performing only the digital calculation.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: October 11, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Masato Ishii, Naruhiko Kasai, Mitsuhide Miyamoto, Tohru Kohno, Hajime Akimoto
  • Patent number: 8031175
    Abstract: Sensors around the periphery of the remote control unit detect contact with the user's hand. A trained model-based pattern classification system analyzes the periphery sensor data and makes a probabilistic prediction of the user's hand size. The hand size is then used to control a mapping system that defines how gestures by the user's thumb upon a touchpad of the remote control unit are mapped to the control region upon a separate display screen.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: October 4, 2011
    Assignee: Panasonic Corporation
    Inventors: Luca Rigazio, David Kryze, Philippe Morin, Masaki Yamauchi
  • Patent number: 8018442
    Abstract: Embodiments related to the calibration of an optical touch-sensitive display device are disclosed. For example, one disclosed embodiment comprises a method of calibrating an image sensor, wherein the method comprises placing a photoluminescent panel over the display surface, and illuminating a target location on the display surface with visible light. Infrared light that is emitted by the panel in response to the illumination of the display surface is received via the image sensor. The received light then is used to calibrate the device.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: September 13, 2011
    Assignee: Microsoft Corporation
    Inventors: Nigel Keam, Prafulla Masalkar
  • Patent number: 8009134
    Abstract: A data driver circuit is divided into a low potential region, an intermediate potential region, and a high potential region, and relative withstand voltages in the respective regions are set equal to each other. Both of the transmission of a power source voltage to the high potential region from the low potential region and the transmission of video signals are performed via the intermediate potential region. Due to such a constitution, the withstand voltages in the respective regions can be suppressed to low values.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: August 30, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Norio Mamba, Toshiyuki Kumagai, Tsutomu Furuhashi
  • Patent number: 8009124
    Abstract: A plasma display and a driving method for the plasma display. The plasma display is constructed with a control type plasma display panel having a closed barrier rib configuration, and each pair of column-wise neighboring discharge cells have different electrode arrangement. In the driving method, when the control type plasma display panel has an alignment error for a first electrode and a second electrode, a scan pulse having a first width is applied to an odd-numbered first electrode, and the scan pulse having a second width that is different from the first width is applied to an even-numbered first electrode.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: August 30, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Tae-Hyun Kim
  • Patent number: 7990368
    Abstract: A method for calibrating coordinates of a touch screen includes the steps of: providing a display panel, which includes display coordinates along a first axis and a first axis display coordinate; providing a capacitive sensor, which includes sensing electrodes disposed along the first axis and respectively corresponding to sensing coordinates, wherein capacitive sensor has a maximum sensing coordinate; detecting digital values corresponding to the sensing electrodes when the capacitive sensor is touched; multiplying the digital values by the sensing coordinates corresponding to the sensing electrodes to obtain a weighting value; dividing the weighting value by the maximum sensing coordinate to obtain an interpolated value; and multiplying the interpolated value by the first axis display coordinate to obtain a calibrated coordinate.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: August 2, 2011
    Assignee: Elan Microelectronics Corp.
    Inventors: Chia-Yi Lee, Wen-Kai Lee
  • Patent number: 7956829
    Abstract: Disclosed herein is a display apparatus includes, a pixel array and a driver configured to drive the pixel array.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: June 7, 2011
    Assignee: Sony Corporation
    Inventors: Yukihito Iida, Masatsugu Tomida, Takao Tanikame, Katsuhide Uchino
  • Patent number: 7907156
    Abstract: A display device for an active matrix drive includes a plurality of pixels each having display retainability and including a first sub-pixel through an nth sub-pixel (n is a natural number greater than 1), a selection switching element provided correspondingly to each of the sub-pixels, connected to a data line, and for selecting the corresponding sub-pixel, and an external input switch provided correspondingly to each of the sub-pixels, connected to a selection line, and for supplying a signal from the selection line to the corresponding sub-pixel in response to an input operation from the outside. The selection line includes n kinds of selection lines, from a first selection line connected to the first sub-pixel to an nth selection line connected to the nth sub-pixel, and the n kinds of selection lines are connected to selection switches for one of selecting the selection lines individually and selecting two or more of the selection lines in a lump.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: March 15, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Masayoshi Todorokihara, Eiju Hirai, Yuko Komatsu
  • Patent number: 7903078
    Abstract: Disclosed is a data driver including a zero compensation resistor connected in series with a phase compensation capacitor between an output node of an input differential amplification stage and an output node of a succeeding amplification stage, and a control circuit that controls to switch a resistance value of the zero compensation resistor. The control circuit switches the resistance value of the zero compensation resistor to a first resistance value or a second resistance value larger than the first resistance value in response to turning off or on of an output switch that controls connection between the output terminal of an amplifying circuit and a data line.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: March 8, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Hiroshi Tsuchi
  • Patent number: 7898512
    Abstract: An image display device includes a display panel having a plurality of pixel display portions arranged in a longitudinal direction and a lateral direction thereof, a plurality of slits arranged on the display panel so as to correspond to spaces between the pixel display portions adjacent to each other, an image input unit acquiring a first input image and a second input image, and a display control portion displaying the first input image and the second input image by alternately imparting input pixel data of the first input image and input pixel data of the second input image to the plurality of pixel display portions in the longitudinal direction and the lateral direction, in which the display control portion prepares display pixel data corresponding to specific input pixel data on the basis of the specific input pixel data of each of the first input image and second input image and at least one neighboring input pixel data adjacent to the specific input pixel data in the longitudinal direction or the later
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: March 1, 2011
    Assignee: Epson Imaging Devices Corporation
    Inventors: Takashi Kurumisawa, Yusuke Okazaki