Patents Examined by Jesus Hernandez
  • Patent number: 8487895
    Abstract: Certain embodiments of the disclosed technology may include systems and methods for enhancing touch event processing performance. According to an example embodiment of the disclosed technology, a method is provided for receiving, at an input dispatcher, touch events from one or more input devices. The method also includes batching the received touch events. Batching can include accumulating the received touch events for a predetermined duration corresponding to a screen refresh rate. The method also includes directing the batched touch events to event receivers associated with one or more applications. The one or more applications asynchronously control receipt of the batch touch events.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: July 16, 2013
    Assignee: Google Inc.
    Inventor: Jeff Brown
  • Patent number: 8487879
    Abstract: Systems and methods are described that enable a user to: select a control with a handwritten stroke at least part of which resides outside of a selectable area of the control; use a moving-input control without having to make a selection other than handwriting on, over, or near the control; and/or delete text displayed on an electronic form by handwriting over that text.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: July 16, 2013
    Assignee: Microsoft Corporation
    Inventors: Jane T Kim, Peter D. Sommer, Simin Wang, Natalie M Eason, Shiraz J. Cupala
  • Patent number: 8471784
    Abstract: This invention relates to a driving apparatus of a plasma display panel that is capable of being operated stable, regardless of temperature. A driving apparatus of a plasma display panel according to the present invention includes a panel having a scanning electrode for receiving a scanning pulse in an address period and an address electrode for receiving a date pulse synchronized with the scanning pulse in the address period; and a pulse width controller for changing the width of the scanning pulse when the panel is driven at a low temperature.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: June 25, 2013
    Assignee: LG Electronics Inc.
    Inventors: Soo Seok Sim, Won Tae Kim, Bon Cheol Koo, Seong Ho Kang
  • Patent number: 8456463
    Abstract: A low voltage driver for a higher voltage LCD includes a plurality of LCD drive bias voltage input-terminals; an LCD drive voltage output terminal; an input transistor switching circuit having at least one switch for each LCD drive bias voltage for selecting one of the bias voltages; an output transistor switching circuit, responsive to the input transistor switching circuit, for applying the selected one of the bias voltages to the LCD drive voltage output terminal, the transistors of the switching circuits having a predetermined breakdown voltage; a level shifter for providing switching voltages counterpart to the plurality of bias voltages; a logic circuit for enabling the first transistor switching circuit to select a one of the bias voltages and applying a set of counterpart switching voltages to the input and output transistor switching circuits for connecting the selected one of the bias voltages to the output terminal and applying a set of switching voltages to the input and output switching circuits
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: June 4, 2013
    Assignee: Analog Devices, Inc.
    Inventors: Abhishek Bandyopadhyay, Eric Nestler, Michael A. Ashburn, Jr.
  • Patent number: 8436815
    Abstract: A control system is disclosed that is configurable (e.g., by a programmer) so as to enable input from multiple sources to capture to multiple controls. Also or alternatively, the system is configurable so as to enable input from multiple sources to capture to a single control. The system also provides a consistent and extendable scheme for filtering out conflicting events for individual controls. In one embodiment, this means that the system is configurable (e.g., based on the programmer's asserted preferences) so as to enable a selective determination as to whether additional inputs can be captured for a given control.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: May 7, 2013
    Assignee: Microsoft Corporation
    Inventors: Maxim Mazeev, Scot Anderson, John Weiss, Robert Levy
  • Patent number: 8405584
    Abstract: A display and the thin-film-transistor discharge method therefore are used for providing a dual-gate thin film transistor to drive the electroluminescent element to emit light. While the thin film transistor (TFT) is discharged, an electric field is formed between the top-gate and the bottom-gate. The electric field is for improving the electric discharge effect at the channel of the TFT, and the magnitude of the applied electric field corresponds to the magnitude of the pixel voltage.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: March 26, 2013
    Assignee: AU Optronics Corp.
    Inventor: Chi-Wen Chen
  • Patent number: 8368724
    Abstract: A display apparatus and a control method thereof, wherein output of a backlight is reduced depending on the remaining amount of a battery or a pixel of an input image, and a brightness value of an output image is increased to compensate for the reduced output of the backlight. A display apparatus according to the present invention includes a display controller for controlling brightness of an image displayed on a display panel and output of a backlight of the display panel; and a control unit for detecting the remaining amount of a battery and controlling the display controller in accordance with the remaining amount of the battery. The control unit includes an operation unit for calculating an output value of the backlight and a pixel brightness correction value of the output image.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: February 5, 2013
    Assignee: LG Electronics Inc.
    Inventor: Jang-Geun Oh
  • Patent number: 8363003
    Abstract: A method of driving a liquid crystal display device includes inputting source image data, each of which has one of m gray level values, wherein m is a natural number, defining T error data from the source image data, wherein the error data have top k gray level values, and T and k are a natural number, generating conversion image data having larger gray level values than the source image data using one having a largest gray level value from the source image data excluding the error data, inputting the conversion image data to a liquid crystal panel, controlling a brightness of a backlight unit in accordance with the conversion image data, forming a bitmap corresponding to the conversion image data, wherein the bitmap shows positional distribution of pixels with the error data, counting error areas by scanning the bitmap, wherein each of the error areas includes the predetermined number of the pixels having the error data, and controlling the T according to the number of the error.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: January 29, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Kyung-Joon Kwon, Hee-Won Ahn, Sung-Soo Kim
  • Patent number: 8355008
    Abstract: The touch component of the present invention is consisted of the main body. The said main body is a conductor used for changing current. The said main body at least includes a hand held portion and a touch portion. The said hand held portion is in touch with the capacitive panel; wherein the end of the touch portion is installed with a touch component. The said touch component is made of soft material, which when in contact with the capacitive panel the contact area of the touch component is in close contact with the capacitive panel, which enables the capacitive panel to be able to prevent being damaged due to user's excessive applied pressure.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: January 15, 2013
    Assignee: Songtak Technology Co., Ltd.
    Inventor: Mao-Sung Wu
  • Patent number: 8350874
    Abstract: A mobile terminal and method of controlling a display device are provided. The present invention includes a display unit displaying information and a control unit controlling the display of the information according to whether luminescence conversion is performed, the luminescence conversion converting a plane luminescence of the display unit to a plurality of dot luminescences. A user can be provided with a substantially analog type information display as well as a digital type information display by loading the luminescence converting unit, such as a plate having a plurality of holes and a semitransparent film, on a display unit of a mobile terminal or by displaying an image having a configuration of the plate.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: January 8, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sang Yeon Lim, Yeon Woo Park, Young Suk Oh, Huhn Kim
  • Patent number: 8344969
    Abstract: Example embodiments relate to a display device having first and second substrates arranged opposite to each other, a semiconductor device on the first substrate, an organic light emitting element on the first substrate and an optical unit between the organic light emitting element and the second substrate. The display device may be configured to adjust angle viewing modes, e.g., a narrow angle viewing mode and a wide angle viewing mode, by selectively applying a voltage to the organic light emitting element and the optical unit.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: January 1, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Hwan Yoon, Kwan-Hee Lee
  • Patent number: 8345024
    Abstract: A display system includes a display device with a display section. A display-data providing device provides a display control signal containing display data to the display device. The display-data providing device stores display data to be provided to the display device and information corresponding to the display data in association with each other. The display device holds the corresponding information associated with the display data provided from the display-data providing device. If the display data is lost from the display device, and if the display-data providing device identifies the display content indicated by the corresponding information contained in the display-data identifying signal output by the display device, the display device erases the display content according to a second inverted erase signal sent from the display-data providing device, and the second inverted erase signal includes the display data corresponding to the display content identified by the display-data providing device.
    Type: Grant
    Filed: March 15, 2008
    Date of Patent: January 1, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Toshimichi Yamada
  • Patent number: 8334858
    Abstract: For the purpose of providing a display apparatus capable of improving display quality by expanding the light-emission area of pixels by improving the layout of pixels and common power-feed lines formed on a substrate, pixels (7A, 7B) including a light-emission element (40), such as an electroluminescence element or an LED element, are arranged on both sides of common power-feed lines (com) so that the number of common power-feed lines (com) is reduced. Further, the polarity of a driving current flowing between the pixels (7A, 7B) and the light-emission element (40) is inverted so that the amount of current flowing through the common power-supply lines “com” is reduced.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: December 18, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tokuroh Ozawa
  • Patent number: 8330684
    Abstract: In an organic light emitting display and its driving method, a pixel portion includes a plurality of pixels which express images corresponding to a scan signal, an emission control signal, and a data signal. A scan driver transfers the scan signal and the emission control signal to the pixel portion. A data driver generates and transfers a plurality of data signals to the pixel portion using video data. A frame memory stores and transfers the video data in frame periods to the data driver. A luminance controller determines a pulse of the emission control signal using frame data, which is a sum of video data stored in the frame memory. A power supply unit supplies voltages of first and second power sources to the pixel portion. The luminance controller determines the number and widths of pulses in the emission control signal corresponding to a sum of the video data.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: December 11, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-jong Park, June-young Song
  • Patent number: 8310476
    Abstract: For the purpose of providing a display apparatus capable of improving display quality by expanding the light-emission area of pixels by improving the layout of pixels and common power-feed lines formed on a substrate, pixels (7A, 7B) including a light-emission element (40), such as an electroluminescence element or an LED element, are arranged on both sides of common power-feed lines (com) so that the number of common power-feed lines (com) is reduced. Further, the polarity of a driving current flowing between the pixels (7A, 7B) and the light-emission element (40) is inverted so that the amount of current flowing through the common power-supply lines “com” is reduced.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: November 13, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tokuroh Ozawa
  • Patent number: 8310475
    Abstract: For the purpose of providing a display apparatus capable of improving display quality by expanding the light-emission area of pixels by improving the layout of pixels and common power-feed lines formed on a substrate, pixels (7A, 7B) including a light-emission element (40), such as an electroluminescence element or an LED element, are arranged on both sides of common power-feed lines (com) so that the number of common power-feed lines (com) is reduced. Further, the polarity of a driving current flowing between the pixels (7A, 7B) and the light-emission element (40) is inverted so that the amount of current flowing through the common power-supply lines “com” is reduced.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: November 13, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tokuroh Ozawa
  • Patent number: 8305303
    Abstract: An organic light emitting diode display includes a data line, a gate line that crosses the data line to receive a scan pulse, a high potential driving voltage source to generate a high potential driving voltage, a low potential driving voltage source to generate a low potential driving voltage, a light emitting element to emit light due to a current flowing between the high potential driving voltage source and the low potential driving voltage source, a drive element connected between the high potential driving voltage source and the light emitting element to control a current flowing in the light emitting element depending on a voltage between a gate electrode and a source electrode of the drive element, and a driving current stabilization circuit to apply a first voltage to the gate electrode of the drive element to turn on the drive element and to sink a reference current through the drive element to set a source voltage of the drive element at a sensing voltage and to modify the voltage between the gate a
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: November 6, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Woo Jin Nam
  • Patent number: 8264435
    Abstract: A liquid crystal display device includes pixels having a plurality of subpixels. The pixels include data displaying subpixels having a first pixel electrode receiving red, green, and blue data voltages to display an image, and a common electrode to which a common voltage is applied. The pixels further a viewing angle controlling subpixel driven in response to a voltage applied to the common electrode, a side electrode separated from the common electrode, and a second pixel electrode. Each of the subpixels includes a rib distorting an electric field applied to the corresponding liquid crystal layer. The viewing angle controlling subpixel delays a phase of the light from the data displaying subpixels when a voltage having a voltage difference from the common voltage is applied to the side electrode during a narrow viewing angle mode of the liquid crystal display device.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: September 11, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Hyun Suk Jin
  • Patent number: 8068080
    Abstract: A liquid crystal display apparatus includes a liquid crystal display panel having a data line and a source driver for supplying a data signal to the data line based on a polarity signal. A polarity of the data signal is determined based on the polarity signal. The source driver includes an offset cancel control circuit for generating an offset cancel control signal and an output amplifier used to generate the data signal. The output amplifier is constructed so as to invert a polarity of an offset voltage based on the offset cancel control signal. The offset cancel control signal is generated based on the polarity signal.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: November 29, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Kouichi Nishimura
  • Patent number: 8063896
    Abstract: A source driver which can control the spatial cycle of inverting the polarity of offset voltage in response to the spatial cycle of inverting the polarity of data signal. The liquid crystal display device according to the present invention has an LCD panel, having data lines, and source drivers for supplying data signal to the data lines. The source driver includes an offset cancel control circuit for generating an offset cancel control signal and an amplifier used for generating the data signal, which is configured so as to invert the polarity of the offset voltage in response to the offset cancel control signal OCC. The offset cancel controller circuit receives the pattern select signal PSEL specifying the cycle of inverting the polarity of the offset voltage of the amplifier to generate the offset cancel control signal in response to the pattern select signal PSEL.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: November 22, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Kouichi Nishimura