Patents Examined by Jose Soto Lopez
  • Patent number: 8786535
    Abstract: In one embodiment of the present invention, a driving method of a liquid crystal display device is disclosed.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: July 22, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Makoto Shiomi, Toshihisa Uchida, Toshihide Tsubata, Junichi Sawahata, Naoshi Yamada
  • Patent number: 8786557
    Abstract: A common electrode 43 for display, which is originally provided in a liquid crystal display element, is also used as one (drive electrode) of a pair of electrodes for a touch sensor, and the other (detection-electrode-for-the-sensor 44) of the pair of electrodes is newly formed. An existing common drive signal Vcom as a drive signal for display is used in common for a drive signal for the touch sensor. A capacitance is formed between the common electrode 43 and the detection-electrode-for-the-sensor 44, and touch detection is performed by utilizing a change of this capacitance caused by a finger touch of a user. Thus, a display device with a touch sensor is also applicable to a mobile device in which electric potential of the user is inconstant in many cases. The newly-provided electrode is only the detection-electrode-for-the-sensor 44, and it is unnecessary to newly prepare a drive signal for the touch sensor. Therefore, the configuration is simple.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: July 22, 2014
    Assignee: Japan Display West Inc.
    Inventors: Koji Noguchi, Daisuke Takama, Yoshitoshi Kida
  • Patent number: 8780047
    Abstract: An interface system and method are provided for facilitating cross-disability access to an electronic device. A first screen of a plurality of screens is displayed on the electronic device. Each screen includes at least one of a non-input element and an input element. The interface system includes a keyboard having a plurality of alpha-numeric keys and a plurality of keys or selectors that allow a user to navigate through the non-input elements and input elements of the plurality of screens.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: July 15, 2014
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Gregg C. Vanderheiden, J. Bern Jordan, David P. Kelso
  • Patent number: 8730144
    Abstract: A driving circuit includes a plurality of stages driven in response to a start signal. Each normal stage outputs a gate signal and a carry signal, increases an electric potential of a node in response to a previous carry signal of a previous stage, and decreases the gate signal to a first voltage in response to a carry signal from a next stage. Each stage applies a second voltage lower than the first voltage to the node in response to receipt of a carry signal from a second next stage. A first dummy stage outputs a first dummy carry signal to the last two normal stages in response to a last carry signal from the last normal stage and the start signal, and a second dummy stage outputs a second dummy carry signal to the last normal stage in response to the first dummy carry signal and the start signal.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: May 20, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Ho Lee, Jaehoon Lee
  • Patent number: 8730147
    Abstract: A backlight control circuit includes a shift register, first and second dividers, a counter/decoder, data registers and control signal generators. The shift register stores digital video data based on a transmission clock signal. The first and second dividers divide the transmission clock signal to generate first and second clock signals, respectively. The counter/decoder counts a number of pulses of the first clock signal and outputs a decoding signal. The decoding signal is used to set an output timing of the digital video data stored in the shift register. The data registers receive and store the digital video data stored in the shift register based on the decoding signal. The control signal generators generate brightness control signals based on the second clock signal in response to the digital video data stored in the data registers to locally control a brightness of light sources of a plurality of light sources.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: May 20, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Tatsuhisa Shimura
  • Patent number: 8692753
    Abstract: To provide a liquid crystal display device capable of improving a moving picture characteristic at a low cost by achieving high luminance of the liquid crystal display device which performs quasi-impulse drive. In the liquid crystal display device of the present invention, a first switching device constituting each pixel has a control terminal connected to a gate line, another control terminal connected to another gate line, and becomes electrically conductive when one of the control terminals is low level while the other is high level. A second switching device has a control terminal connected to the gate line and a control terminal connected to the other gate line. A pixel capacitance and a storage capacitance are connected to data lines via the first switching device, and connected to a black signal supplying wiring via the second switching device. The black signal supplying wiring is common to all the pixels.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: April 8, 2014
    Assignee: NLT Technologies, Ltd.
    Inventor: Hiroyuki Sekine
  • Patent number: 8686934
    Abstract: The present invention reduces power consumption of a display device. The display device includes a wire to which a video signal is input, a first capacitor element and a second capacitor element which are connected to the wire in parallel, and a pixel. Between the first capacitor element and the wire, a first switch is provided so as to control conduction and non conduction between the first capacitor element and the wire. Between the second capacitor element and the wire, a second switch is provided so as to control conduction and non conduction between the second capacitor element and the wire. The pixel and the wire are arranged such that the pixel and the wire can be connected to each other, and a video signal can be input to the pixel.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: April 1, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 8638293
    Abstract: A method for responding operations includes: intercepting a press-down event of a pointer equipment to obtain press-down position and time of the pointer equipment; intercepting a moving event of the pointer equipment to obtain a current position where the pointer equipment moves and time when the pointer equipment moves to the current position; calculating to obtain residence time, movement speed and movement direction of the pointer equipment according to the press-down position and time as well as the current position where the pointer equipment moves and the time when the pointer equipment moves to the current position; judging whether the current gesture is a dragging gesture or a scrolling gesture according to the residence time, movement speed and movement direction, executing a dragging operation if the current gesture is the dragging gesture, and executing a scrolling operation if the current gesture is the scrolling gesture.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: January 28, 2014
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Anqi Li, Min Ren
  • Patent number: 8633886
    Abstract: A display is disclosed having crossover connections effecting polarity inversion. The display includes a panel comprising a subpixel repeating group having an even number of repeating subpixels in a first direction. The display also includes a driver circuit coupled to the panel to provide image data signals effecting polarity inversion to the panel. The display also includes a plurality of crossover connections from the driver circuit to the columns of the panel such that polarities of same color subpixels in the first direction alternate at a spatial frequency sufficient to abate undesirable visual effects on the panel when an image is displayed thereon; each crossover connection applying the same polarity to each subpixel in the column.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: January 21, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Thomas Lloyd Credelle, Matthew Osborne Schlegel
  • Patent number: 8629831
    Abstract: A light source module of a display device comprises light-emitting blocks each of which comprises multiple sets of light sources, with different sets emitting different colors (e.g. red, green and blue). Each set is independently controllable according to one or more driving parameters.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: January 14, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Il Park, Yong-Hoon Kwon, Se-Ki Park, Gi-Cherl Kim, Si-Joon Song
  • Patent number: 8624867
    Abstract: A display device includes: a display panel including first and second substrates spaced from and opposite to each other, and has a touch sensor switch. The touch sensor switch includes a first touch electrode provided on a surface of the first substrate facing the second substrate, and a second touch electrode provided on a surface of the second substrate facing the first substrate and spaced from and faces the first touch electrode. The first and second touch electrodes contact with each other when the touch panel is deformed by an external pressure. The first touch electrode covers a surface of a concave and convex area where grooves are formed to be spaced from each other, and on the surface on which the first touch electrode is provided, an application film is provided to expose a surface of a top face of a convex part of the concave and convex area.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: January 7, 2014
    Assignee: Japan Display West Inc.
    Inventors: Masaya Tamaki, Takeo Koito, Masato Imai
  • Patent number: 8614654
    Abstract: A display configured to reduce intra-pixel crosstalk is provided. In one embodiment, a system includes a processor, a memory, and a display. The display may include a pixel array and associated driving circuitry. The display may be configured to balance charges induced on a gate line and on an adjacent common line of the pixel array in response to application of a first data voltage on a first data line, and to perform such balancing before applying a second data voltage to a second data line adjacent the first data line to reduce or eliminate intra-pixel crosstalk. Additional systems, devices, and methods relating to reducing intra-pixel crosstalk in a display are also disclosed.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: December 24, 2013
    Assignee: Apple Inc.
    Inventor: Yongman Lee
  • Patent number: 8614697
    Abstract: A display apparatus includes a timing controller which outputs image data, a data control signal and a first gate control signal, a data driving circuit which receives the image data and converts the image data into data voltages, a control signal converting circuit which delays the first gate control signal by a reference time period to convert the first gate control signal into a second gate control signal based on a reference signal, a gate driving circuit which outputs gate signals based on the second gate control signal, and a display panel which displays an image corresponding to the one line of the data voltages based on the gate signals. Each gate signal rises at a point in time delayed from a starting point of a corresponding horizontal scanning period by the reference time period and falls before an ending point of the corresponding horizontal scanning period.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: December 24, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoung-Hak Kim, Sang-Hoon Park, Kyu-Jin Park, Kyu-Hun Lim, Sun-Mi Son
  • Patent number: 8610705
    Abstract: An apparatus for driving a liquid crystal display device, and which includes an image analyzer configured to compare a pattern of input image data with a plurality of stored patterns of image data, to determine a stored pattern of image data from the plurality of stored patterns of image data that is most similar to the pattern of the input image data, and to output a pattern analysis signal indicating the determined stored pattern, and a dithering unit connected to the image analyzer and configured to select a dithering pattern based on the output pattern analysis signal, to dither the input image data based on the selected dithering pattern, and to output a dither-processed image data.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: December 17, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Sang Hoon Lee, Hwa Young Kim
  • Patent number: 8605012
    Abstract: A method of driving a plasma display apparatus including a scan electrode and a sustain electrode, that are positioned parallel to each other, are disclosed. The method includes supplying a scan signal to the scan electrode during an address period of a first subfield among a plurality of subfields of a frame, supplying a reset signal to the scan electrode during a reset period of a second subfield immediately following the first subfield, supplying a first signal between the scan signal and the reset signal to the scan electrode, and supplying a second signal overlapping the first signal to the sustain electrode. A pulse width of the second signal is smaller than a pulse width of the first signal.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: December 10, 2013
    Assignee: LG Electronics Inc.
    Inventors: Kirack Park, Gyungrae Kim, Jongwoon Bae, Seonghwan Ryu
  • Patent number: 8605025
    Abstract: The present invention relates to enhancing low power consumption of a display device having a SRAM. The display device includes a drive circuit receiving video data; video lines connected the drive circuit; and pixels connected to the video signals. The drive circuit includes a memory storing the video data in memory cells. Each memory cell includes a first inverter with input and output terminals connected to first and second nodes, respectively. A second inverter has output and input terminals connected to the first and second nodes, respectively. A First and second transistors between a first data line and the first node each have a control terminal connected to a first word line or a third word line, respectively. Third and fourth transistors between a second data line and the second node each have a control terminal connected to a second word line or a fourth word line, respectively.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: December 10, 2013
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yoshinori Aoki, Mitsuru Goto, Shouji Nagao, Kouichi Kotera
  • Patent number: 8605062
    Abstract: To shorten the measuring time of the characteristics of light emission of OLED elements for feedback to image data for image display in an organic EL display device. Pixels that emit red lights, pixels that emit green lights, and pixels that emit blue lights are arranged on a screen in a matrix manner. A detection system is provided on the upper side of the screen. A detection line extending from the detection system is coupled to the respective pixels through analog switches and digital switches controlled by switch controlling lines. A detection scanning circuit is provided on the right side of the screen. Detection switch controlling lines extend from the detection scanning circuit. By appropriately selecting the analog switches, the switch controlling lines, and the detection switch controlling lines, the voltage-current characteristics of plural pixels are measured at the same time.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: December 10, 2013
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tohru Kohno, Mitsuhide Miyamoto, Hajime Akimoto, Naruhiko Kasai, Masato Ishii
  • Patent number: 8576204
    Abstract: Apparatus, systems and methods for the synchronization of asynchronous display streams are disclosed. For example, a method is disclosed including receiving a first display data stream, receiving a second display data stream, determining a temporal offset between the first display data stream and the second display data stream, and adjusting at least one blanking interval of the second display data stream to reduce the temporal offset. Other implementations are also disclosed.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: November 5, 2013
    Assignee: Intel Corporation
    Inventor: Jeremy J. Lees
  • Patent number: 8576203
    Abstract: A cordless type position pointer is provided for use with a capacitance type position detection apparatus to carry out a position pointing operation. The position pointer includes a housing having electric conductivity, a projecting portion of a predetermined shape formed at one end portion of the housing and having electric conductivity, and a contacting member removably fitted with the projecting portion. The contacting member has elasticity and electric conductivity, and is configured to contact the position detection apparatus to point to a position. The position pointer further includes a sleeve having a through-hole and configured to expose, when the sleeve is engaged with the housing, a predetermined portion of the contacting member fitted with the projecting portion from the through-hole thereof.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: November 5, 2013
    Assignee: Wacom Co., Ltd.
    Inventors: Takaaki Nakata, Takenori Kaneda, Mamoru Ogata
  • Patent number: 8570265
    Abstract: A liquid crystal display includes a first gate line transmitting a first gate signal, a first data line transmitting a first data voltage, and a first pixel connected to the first gate line and the first data line and including a first subpixel and a second subpixel. The first subpixel includes a first switching element connected to the first gate line, a first liquid crystal capacitor connected to the first switching element, and a first storage capacitor having a first terminal and a second terminal. The second subpixel includes a second switching element connected to the first gate line and the first data line, a second liquid crystal capacitor connected to the second switching element, and a second storage capacitor having a first terminal and a second terminal and having a capacitance different from a capacitance of the first storage capacitor.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: October 29, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang-Chul Jung, Mee-Hye Jung