Patents Examined by Randal Willis
  • Patent number: 9110535
    Abstract: A touch apparatus includes a driving unit, a first touch panel, a second touch panel and a connecting circuit board coupling between the first and second touch panels. The driving unit has a driving element which has at least one driving port for outputting a plurality of driving signals and at least one sensing port for receiving a plurality of sensing signals. The first touch panel is coupled with the driving element. The second touch panel is disposed adjacent to the first touch panel, and is coupled with the driving element via the first touch panel. The first touch panel and the second touch panel are coupled jointly with at least one of the driving port and the sensing port. A driving method of the touch apparatus is also disclosed.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: August 18, 2015
    Assignees: INNOCOM TECHNOLOGY (SHENZHEN) CO., LTD., INNOLUX CORPORATION
    Inventors: Wen-Kai Lo, Hsi-Yao Wu, Ze-Yan Lin
  • Patent number: 9105224
    Abstract: A stereoscopic display device includes: a parallax barrier in which light transmission parts that transmit light and light shielding parts that block light are formed alternately, and a display panel that displays a stereoscopic image. A plurality of pixels for displaying the stereoscopic image are formed on the display panel. Each pixel includes a plurality of color forming subpixels that contribute to the color formation of the stereoscopic image, and a contrasting subpixel that contributes to the contrast of the stereoscopic image. In each pixel, the contrasting subpixel is positioned at both ends of the pixel in a direction in which the light transmission parts and the light shielding parts are arranged alternately. In each pixel that overlaps the light shielding part when the display panel is viewed from front, the contrasting subpixel is positioned at both ends of the light shielding part.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: August 11, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Makoto Eguchi, Shinya Yamasaki, Akira Imai, Tomoo Takatani
  • Patent number: 9093039
    Abstract: Disclosed is a liquid crystal display device and a method of driving the same, which prevent image-quality defects due to charge variation. In the method of driving the liquid crystal display device including a pixel consisting of first to third sub-pixels which share one data line and are connected to first to third gate lines, one sub-pixel is turned off on a per frame basis, another sub-pixel is charged with a polarity inverted data voltage for a first charge time including a charge time of the turned-off sub-pixel, and the other sub-pixel is charged with a data voltage having the same polarity as a previous data voltage for a second charge time less than the first charge time. The turned-off sub-pixel, the sub-pixel charged with the polarity inverted data voltage, and the sub-pixel charged with the polarity maintained data voltage alternately vary on a per frame basis.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: July 28, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dae-Seok Oh, Yong-Hwa Park
  • Patent number: 9030415
    Abstract: A method and apparatus for facilitating input of data to an electronic device using overlaid inputs is disclosed. A determination is made as to which of a plurality of terminating hand members is being used to activate a key. A first character value is assigned to an activation of the key, based at least upon the determination.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: May 12, 2015
    Assignee: Varia Holdings LLC
    Inventors: Majeed D. Salman, G. Eric Engstrom, Peter Zatloukal
  • Patent number: 9007353
    Abstract: In one aspect of the invention, a display includes a substrate, and a plurality of pixels formed on the substrate and arranged in an array. Each pixel has a driving transistor having a gate electrode, a drain electrode and a source electrode, formed on the substrate, an organic light emitting diode (OLED) having a cathode layer, a anode layer and an emissive layer formed between the cathode layer and the anode layer, and formed over the driving transistor such that the anode layer of the OLED is electrically connected to the source electrode of the driving transistor, a bias electrode formed over the substrate, and a photo sensor having a photosensitive layer formed between the anode layer of the OLED and the bias electrode.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: April 14, 2015
    Assignee: AU Optronics Corporation
    Inventors: Tzu-Yin Kuo, Tsung-Ting Tsai
  • Patent number: 8963905
    Abstract: Disclosed is a liquid crystal display panel driving circuit for driving a liquid crystal display panel with a resolution of N bits. N-bit digital data including upper X bits and lower Y bits is inputted. The liquid crystal display panel driving circuit includes a resistor string unit according to areas, a DAC converter switching unit according to areas, and an interpolation amplifier. The resistor string unit outputs analog reference voltages at different ratios according to three areas. The DAC converter switching unit receives the N-bit digital data, selects (Y+1) analog voltages from the analog reference voltages based on the upper X bits, outputs the (Y+1) analog voltages, and outputs the (Y+1) analog voltages of different combinations based on the lower Y bits. The interpolation amplifier receives the (Y+1) analog voltages and generates an interpolated output voltage by setting weights for the (Y+1) analog voltages by using multi-factors.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: February 24, 2015
    Assignee: Silicon Works Co., Ltd.
    Inventors: Hyun-Ho Cho, Ji-Hun Kim, Joon-Ho Na, Hyung-Seog Oh, Dae-Seong Kim, Dae-Keun Han
  • Patent number: 8941596
    Abstract: A touch screen and a manufacturing method thereof, and a color filter substrate and a manufacturing method thereof are provided in the invention. The touch screen comprises a substrate, a plurality of touch regions defined by a plurality of first signal lines and a plurality of second signal lines are provided on the substrate. In each touch region, the first signal line is connected with a first piezoelectric switch, the second signal line is connected with a second piezoelectric switch, when the touch region is touched by a force the first piezoelectric switch and the second piezoelectric switch are turned on and transfer voltage signals respectively via the first signal line and the second signal line to determine the coordinate of the touched touch region.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: January 27, 2015
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Zhenyu Xie, Xu Chen, Xiang Liu
  • Patent number: 8941567
    Abstract: An organic light emitting display device is capable of securing sufficient compensation period such that a threshold voltage of a driving transistor may be compensated. A pixel includes: an organic light emitting diode; a second transistor for controlling an amount of current supplied from a first power source to the organic light emitting diode; a first capacitor having a first terminal coupled to a gate electrode of the second transistor; a first transistor coupled between a second terminal of the first capacitor and a data line, and being configured to turn on when a scan signal is supplied to a scan line; and a third transistor coupled between a gate electrode and a second electrode of the second transistor and having a turning-on period that is not overlapped with that of the first transistor. The third transistor is configured to turn on for a longer time than the first transistor.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: January 27, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Wook Park, Chul-Kyu Kang, Keum-Nam Kim
  • Patent number: 8933886
    Abstract: An instruction input device includes: a first direction detection unit detecting the first direction in which the user is looking; a second direction detection unit detecting a second direction in which the user is performing a pointing operation; a gaze position calculation unit calculating a gaze position of the user on the screen; a reference coordinate group calculation unit calculating a reference line in space corresponding to the gaze position and connecting the user and the screen; an offset amount calculation unit calculating a distance of the second direction between the reference line and the input coordinate indicating the user's hand as an offset amount with respect to the gaze position; and a pointer display position calculation unit calculating a position in which a distance of the first screen predetermined direction between the position and the gaze position is the offset amount on the screen.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: January 13, 2015
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Hiroyasu Imoto, Shigenori Maeda
  • Patent number: 8907877
    Abstract: An apparatus for driving a liquid crystal display device includes a liquid crystal display panel; a plurality of data ICs supplying data voltages to the liquid crystal display panel; a plurality of gate ICs supplying a gate signal to the liquid crystal display panel; and a common voltage generating unit that generates a common voltage to drive the liquid crystal display panel with a difference between the common voltage and the at least one of the data voltages, the common voltage depending on at least one of the data voltages.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: December 9, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Il Chung, Kyoung Hun Lee
  • Patent number: 8847999
    Abstract: A display device includes: a display section including a plurality of pixels each having a light emitting element and a pixel circuit; and a drive circuit performing display drive on the plurality of pixels through selecting each of the plurality of pixels to write a first signal voltage and a second signal voltage in this order into the selected pixel, the first and second signal voltages being provided based on a video signal. The drive circuit varies magnitude of each of the first and second signal voltages in accordance with a gray-scale value of the video signal, thereby performing gray-scale interpolation on a light emission luminance level for each of the light emitting elements.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: September 30, 2014
    Assignee: Sony Corporation
    Inventors: Naobumi Toyomura, Tetsuro Yamamoto, Katsuhide Uchino
  • Patent number: 8847928
    Abstract: A position indicator for use in a pen tablet device includes a coil for emitting a position indicating signal. The coil includes: a first conductive wire wound from a distal end portion thereof to a proximal end portion thereof in a predetermined rotational direction; and a second conductive wire wound from a proximal end portion thereof to a distal end portion thereof in the predetermined rotational direction, wherein the first conductive wire and the second conductive wire are connected to each other at the proximal end portions thereof, and the wound first conductive wire and the wound second conductive wire are disposed alternately adjacent to each other.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: September 30, 2014
    Assignee: Wacom Co., Ltd.
    Inventor: Yuji Katsurahira
  • Patent number: 8836684
    Abstract: A liquid crystal display device includes a plurality of common electrodes arranged so as to counter pixel electrodes extending in the row direction on a substrate. First and second voltage supply lines to supply first and second voltages to the common electrodes are connected with the common electrodes through a first switch circuit. A second switch circuit is arranged between the first voltage supply line and signal lines to switch a connection between the first voltage supply line and the signal lines. A gate open circuit is connected to scan lines to simultaneously supply a signal to switch on the pixel electrodes to all the scan lines. In case the power supply of the liquid crystal display device is turned off, a control circuit starts the power OFF driving operation to set the potential of the pixel electrode and the common electrode to substantially same by switching the first and second switch circuits.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: September 16, 2014
    Assignee: Japan Display Inc.
    Inventor: Kenji Harada
  • Patent number: 8803824
    Abstract: Methods and systems for enabling a tablet input object is described. A tablet input object can take various inputs from touch, a mouse, and a pen and send their information to an application.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: August 12, 2014
    Assignee: Microsoft Corporation
    Inventors: Alexander J. Zotov, Reed L. Townsend, Steven P. Dodge, Todd M. Landstad, Olumuyiwa M. Durojaiye, Stefan Wick, Vijayakumar Rangasamy
  • Patent number: 8749500
    Abstract: A touch display including a display panel, multiple first stripe electrodes, a substrate, multiple second stripe electrodes, and multiple spacers is provided. The display panel has a first surface, and the first stripe electrodes are disposed on the first surface. The substrate has a second surface, and the first surface faces the second surface. The second stripe electrodes are disposed on the second surface. A longitudinal direction of the first stripe electrodes is perpendicular to that of the second stripe electrodes. The spacers are disposed between the first surface of the display panel and the second surface of the substrate. Orthogonal projections of the spacers are on the display panel at locations where the first stripe electrodes are not disposed.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: June 10, 2014
    Assignee: Innolux Corporation
    Inventors: Chun-Hsi Chen, Chien-Chih Huang
  • Patent number: 8723830
    Abstract: A multi-touch capacitive touch sensor panel can be created using a substrate with column and row traces formed on separate layers of the substrate. The column and row traces can include sections extending from a central trace and forming a rectilinear trace pattern with sections of the columns and rows interdigitated with one another. The trace pattern can comprise a plurality of pixels arranged continuously across the sensor panel. In this manner, the sensor panel can provide a linear or near linear response to touches across the touch sensor panel.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: May 13, 2014
    Assignee: Apple Inc.
    Inventors: Steve Porter Hotelling, Kenneth Lawrence Staton
  • Patent number: 8717333
    Abstract: An electrostatic capacity type touch panel having on one surface of a transparent substrate, a plurality of columns of column electrodes extending in a first direction and a plurality of columns of column electrodes extending in a second direction intersecting the first direction, such column electrodes extending in the first direction and such column electrodes extending in the second direction being eclectically disconnected from each other by an electrically insulating layer provided at least in a part of each intersection region of the column electrodes, and at least one of the two intersecting column electrodes being electrically connected by a bridge wire provided in the intersection region.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: May 6, 2014
    Assignee: OPTREX Corporation
    Inventors: Masao Ozeki, Atsushi Iwasaki
  • Patent number: 8669924
    Abstract: In one aspect, the present invention relates to a display. In one embodiment, the display has a substrate, and a plurality of pixels formed on the substrate and arranged in an array. Each pixel includes a driving transistor and a read-out transistor spatially formed on the substrate, where each transistor has a gate electrode, a drain electrode and a source electrode, an organic light emitting diode (OLED) having a cathode layer, a anode layer and an emissive layer formed between the cathode layer and the anode layer, and formed over the driving transistor and the read-out transistor such that the anode layer of the OLED is electrically connected to the source electrode of the driving transistor, and a photo sensor having a photosensitive layer formed between the anode layer of the OLED and the source electrode of the read-out transistor.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: March 11, 2014
    Assignee: AU Optronics Corporation
    Inventors: Tzu-Yin Kuo, Tsung-Ting Tsai
  • Patent number: 8629817
    Abstract: A new driving circuit is provided. The driving circuit according to the present invention comprises a first period for setting a current to be supplied to a display element, a second period for setting a gray-scale of the display element, and a third period for supplying a driving current to the display element. The present invention, in the driving circuit of the display element, is provided with a current source circuit for supplying a constant current to the display element and a control circuit for controlling the time to supply a constant current to the display element from the current source circuit.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: January 14, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Abe, Masafumi Sano, Ryo Hayashi, Hideya Kumomi
  • Patent number: 8599111
    Abstract: A driving circuit of a display element includes a current source circuit having a first transistor and a holding circuit for holding a gate voltage of the first transistor during a first period at an electric potential corresponding to a constant current to be supplied to the display element, and a control circuit including a second transistor connected in series to the current source circuit and connected in parallel to the display element and the capacitor element whose one terminal is connected to a gate of the second transistor and the other terminal is connected to a line, and controlling the light emission time of the display element by controlling the second transistor during a third period. A constant voltage is applied from the line during the first period. The gray-scale voltage is applied from the line during a second period, and the gate of the second transistor and the one terminal are short-circuited.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: December 3, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Abe, Masafumi Sano, Ryo Hayashi, Hideya Kumomi