Patents Examined by Temesgh Ghebretinsae
  • Patent number: 9401115
    Abstract: A liquid crystal display includes: a light source section including emission subsections; a LCD panel including pixels each having sub-pixels for four colors of R, G, B, and Z, and modulating light from the emission subsections based on input image signals for three colors of R, G, and B; and a display control section including a partitioning-drive processing section, driving the emission subsections with an emission pattern signal, and driving the four sub-pixels with partitioning-drive image signals for the four colors.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: July 26, 2016
    Assignee: SONY CORPORATION
    Inventors: Mitsuyasu Asano, Tomohiro Nishi, Tomoya Yano, Ken Kikuchi
  • Patent number: 9395800
    Abstract: Embodiments of the present invention disclose a method and system for enabling instant handwriting input on a mobile computing device. According to one embodiment, while the mobile device is in an inactive state and identity-protected, an activation event associated with a writing tool operated by a user is detected. In response to the activation event, the mobile computing device is switched from the inactive state to a low power state in which the mobile computing device is configured to accept and store handwritten input while remaining identity-protected.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: July 19, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Eric Liu, Stefan J. Marti, Seung Wook Kim, Alison Wong, Edward Stanley Ott, IV
  • Patent number: 9389735
    Abstract: There are provided a touch sensing device and a touchscreen device, the touch sensing device including a plurality of driving electrodes extended in a first axial direction, a plurality of sensing electrodes extended in a second axial direction intersecting with the first axial direction, an integrating circuit unit generating a first analog signal by integrating a change in capacitance generated in a first sensing electrode among the plurality of sensing electrodes and generating a second analog signal from a change in capacitance generated in a second sensing electrode adjacent to the first sensing electrode, and a subtracting unit calculating a difference in levels between the first and second analog signals.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: July 12, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yong Il Kwon, Tah Joon Park, Byeong Hak Jo, Hyun Suk Lee
  • Patent number: 9390672
    Abstract: A driving circuit of a pixel includes a driving capacitor for driving liquid crystals according to a voltage difference between first and second ends of the driving capacitor, a reference voltage source for providing a reference voltage, a first data line for providing a first driving voltage, a second data line for providing a second driving voltage, a first scan circuit for electrically connecting the first and the second data lines to the first and the second ends of the driving capacitor respectively when the first scan circuit is turned on, a first scan line for controlling on and off states of the first scan circuit, a second scan circuit for electrically connecting the first end and the second end of the driving capacitor when the second scan circuit is turned on, and a second scan line for controlling on and off states of the second scan circuit.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: July 12, 2016
    Assignee: AU Optronics Corp.
    Inventors: Young-Ran Chuang, Kuan-Chun Huang, Ching-Huan Lin
  • Patent number: 9383856
    Abstract: A touch sensing circuit and method is provided. The touch sensing circuit discriminates a common voltage change of a display panel couple to the touch sensor in a touch panel display apparatus. The touch sensor comprises a plurality of sensor electrodes. The touch sensing circuit includes a plurality of channel circuits, each of which includes a reset switch and a sensing switch for alternately conducting an associated sensor electrode to a reset voltage and a charge collecting circuit. The channel circuits are divided to different groups that operate according to interleaving timings for encompassing possible common voltage changes.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: July 5, 2016
    Assignee: MStar Semiconductor, Inc.
    Inventors: Guo-Kiang Hung, Hsuan-I Pan, Ming-Chang Tsai, Meng-Chang Lee, Shih-Tsung Yang
  • Patent number: 9383862
    Abstract: An in-cell type liquid crystal display device includes a first unit that detects whether a touch is present, or not, on the basis of a current flowing in a plurality of detection electrodes when a touch panel scanning voltage is applied to counter electrodes of each of M (M?2) divided blocks, and a second unit that detects noise on the basis of a current flowing in the plurality of detection electrodes, assuming that an (M+1)th counter electrode is present for the counter electrodes of each of the M divided blocks, and assuming that a touch panel scanning voltage synchronous with the touch panel scanning voltage applied to the counter electrodes of each of the M divided blocks is applied to the (M+1)th counter electrode.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: July 5, 2016
    Assignee: JAPAN DISPLAY INC.
    Inventors: Masahiro Tokita, Seiichi Tsuyuzaki
  • Patent number: 9383883
    Abstract: A touch input device and a touch input method are provided. The touch input device includes a first panel configured to be touched by an input tool having magnetic properties, a second panel configured to generate a magnetic field, and a control unit configured to control the second panel to generate the magnetic field in a portion of the second panel that is related to a touched location of the first panel, as the input tool touches the first panel.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: July 5, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Han-sung Lee, Chang-soo Lee
  • Patent number: 9378668
    Abstract: A pixel, a display device including the same, and a driving method thereof. After the anode voltage of an organic light emitting diode (OLED) is discharged and reset, a first voltage corresponding to a data voltage applied to a storage capacitor is transmitted to a compensation capacitor. A voltage corresponding to the threshold voltage of the driving transistor is transmitted to the compensation capacitor. The data voltage is stored according to a data signal corresponding to the storage capacitor. The organic light emitting diode (OLED) emits light according to a driving current flowing to the driving transistor by the voltage stored to the compensation capacitor. Here, the light emitting steps of a plurality of pixels are concurrently generated, and a scan step and the light emitting step are temporally overlapped.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: June 28, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sang-Myeon Han
  • Patent number: 9367092
    Abstract: A touch-sensitive input device includes a cover, a set of first conductors disposed between the cover and a substrate, the first conductors including at least two fingers connected at an end of the fingers, dummy conductors disposed between the first conductors and between the fingers of the first conductors, and a second set of conductors disposed on an opposite side of the substrate.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: June 14, 2016
    Assignee: BlackBerry Limited
    Inventors: Mykola Golovchenko, Stanislav Pereverzev, William Turlay Stacy
  • Patent number: 9367172
    Abstract: The present invention provides a method for detecting touch trace while preventing interruption of the touch traces in the presence of interfering noise, comprising: changing frequency of driving signals in response to a detection of noise; setting a plurality of lines of first sensing signal values obtained from a first sensing as a plurality of baselines; obtaining a plurality of difference values by comparing a plurality of lines of second sensing signal values obtained from a second sensing against said plurality of baselines; determining whether all said plurality of difference values are smaller than a threshold value; determining whether the flatness of said plurality of baselines is greater than a flatness threshold value if all said plurality of difference values are determined to be smaller than said threshold value; and reporting, in response to the flatness of said plurality of baselines is determined to be greater than said flatness threshold value, a first proximity or touch event, said first pr
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: June 14, 2016
    Assignee: EGALAX_EMPIA TECHNOLOGY INC.
    Inventors: Chin-Fu Chang, Shang-Tai Yeh, Hung-Yun Tai
  • Patent number: 9367164
    Abstract: Embodiments of the present disclosure provide a pixel circuit, a driving method thereof, an organic light-emitting display panel and a display device. The pixel circuit is provided with a touch sensing module, a driving transistor, a driving control module and a light-emitting module. The pixel circuit compensates for a threshold voltage of the driving transistor by a diode connection of the driving transistor and a discharging of a storage capacitor, so that a driving current of the driving transistor is independent of the threshold voltage of the driving transistor, and thus the driving currents of the OLEDs located at different positions on the organic light-emitting display panel are consistent, which can improve a brightness uniformity and a reliability of the display panel.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: June 14, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Bo Wu, Xiaojing Qi, Leisen Nie
  • Patent number: 9355591
    Abstract: An organic light emitting diode (OLED) display and a method of compensating for degradation are disclosed. One inventive aspect includes a panel assembly including a plurality of pixels. Luminance measuring units are formed along a perimeter of the panel assembly to measure luminance of light emitted from the pixels. A processing unit compares the measured luminance data so as to detect and also compensate for a degraded pixel.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: May 31, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Hye Eom, Baek-Woon Lee, In-Hwan Ji
  • Patent number: 9354802
    Abstract: The present invention provides an information input device, in which information is inputted by easy operations, even if a display unit size is limited. An information input device of the present invention has: a display unit displaying a plurality of figures; a detecting unit arranged in front of the display unit or behind the display unit, and detecting whether a physical contact from an outside exists or not and a contacted position at which the physical contact exists; and a control unit deciding a figure displayed on the display unit and a position at which the figure is displayed, and inputting information based on a signal from the detecting unit, and when the detecting unit detects the physical contact exists, the control unit determines a first figure displayed at a nearest position to the contacted position in the plurality of figures based on the contacted position and decides a second figure displayed at a position surrounding the contacted position based on a kind of the first figure.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: May 31, 2016
    Assignee: NEC CORPORATION
    Inventor: Kunihiro Kajiyama
  • Patent number: 9348503
    Abstract: The present invention provides an information input device, in which information is inputted by easy operations, even if a display unit size is limited. An information input device of the present invention has: a display unit displaying a plurality of figures; a detecting unit arranged in front of the display unit or behind the display unit, and detecting whether a physical contact from an outside exists or not and a contacted position at which the physical contact exists; and a control unit deciding a figure displayed on the display unit and a position at which the figure is displayed, and inputting information based on a signal from the detecting unit, and when the detecting unit detects the physical contact exists, the control unit determines a first figure displayed at a nearest position to the contacted position in the plurality of figures based on the contacted position and decides a second figure displayed at a position surrounding the contacted position based on a kind of the first figure.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: May 24, 2016
    Assignee: NEC CORPORATION
    Inventor: Kunihiro Kajiyama
  • Patent number: 9342149
    Abstract: Systems and methods are employed for implementing haptics for pressure sensitive keyboards, such as the type of keyboards having keys that produce alternating digital open/short signals that emulate actuation of conventional “momentary on” digital keys. The disclosed systems and methods may be implemented to provide haptics for both touch typing and variable pressure sensitive operation of a pressure sensitive keyboard. Users of a variable pressure keyboard may be provided with a variable pressure haptics effect, e.g., to enable the user to intuitively understand from the haptics vibration produced by the key how much pressure they are applying to a given key at any given time. Vibration characteristics (e.g., vibration rate, vibration waveform pattern, etc.) of a given pressed key may be varied in real time in coordination with, or in response to, corresponding changes in user pressure applied to the same given key.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: May 17, 2016
    Assignee: Dell Products LP
    Inventors: Mark A. Casparian, Frank C. Azor
  • Patent number: 9345074
    Abstract: In an organic EL display apparatus, a chromaticity change of image display due to deterioration in an OLED is corrected. The organic EL display apparatus includes an EC element layer formed of one kind or a plurality of kinds of electrochromic elements which are disposed on an OLED portion and develop colors. Each of the electrochromic elements has a peak in a transmission spectrum during development of a color in any one of the emission wavelength bands of the pixels corresponding to the plurality of colors. The electrochromic element receives a DC voltage from a driver so as to be driven. Chromaticity of image display is adjusted by controlling a color development intensity of the electrochromic element by using the DC voltage which is applied by the driver.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: May 17, 2016
    Assignee: Japan Display Inc.
    Inventors: Toshihiro Sato, Hironori Toyoda
  • Patent number: 9341871
    Abstract: A method of driving liquid crystal lens includes identifying a driving mode and driving unit lenses of the liquid crystal lens. The driving mode includes a two-dimensional (“2D”) mode and a three-dimensional (“3D”) mode. Driving timings of the unit lenses are different from each other in the 3D mode.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: May 17, 2016
    Assignee: SAMSUNG DISPLAY, CO., LTD.
    Inventors: Ji-Woong Jeong, Joo-Young Kim, Cheol-Woo Park, Mun-San Park
  • Patent number: 9328899
    Abstract: Light from an LED (light-emitting diodes) has strong directional characteristics; therefore, lighting over large area, as well as control of the quality or the distribution of lighting was impossible. Placing a liquid-crystal panel in front of an LED (light-emitting diodes) enables to control light from the LED and the quality or the distribution of lighting.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: May 3, 2016
    Inventors: Shoei Kataoka, Teruyuki Kataoka
  • Patent number: 9329627
    Abstract: Provided is a method of recognizing a control command based on finger motion involving: (a) obtaining coordinate data of a pointer corresponding to a position of a finger in contact with a touch input device of a mobile terminal; (b) obtaining an input continuance time of the coordinate data, and setting values of timer variables based on the input continuance time; (c) setting logic values of a plurality of command logic variables whose logic values of True or False are based on values of the respective timer variables; and (d) recognizing an operation control command of the pointer based on the respective timer variable values and the command logic variable values.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 3, 2016
    Assignee: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Kwang-Seok Hong, Byung Hun Oh
  • Patent number: 9329738
    Abstract: Embodiments described herein generally take the form of methods and systems for identifying and/or reducing a parasitic capacitance variation in a capacitive integrated touch-sensing module that may arise from proximity to a nearby electronic display.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: May 3, 2016
    Assignee: Apple Inc.
    Inventors: Marduke Yousefpor, Stephen S. Poon