Patents Examined by William Boddie
  • Patent number: 9841842
    Abstract: An input device may include an image sensor having an imaging surface that includes an array of pixels, and an optical waveguide layer carried by the imaging surface and having an exposed user surface and a first refractive index associated therewith. The input device may also include a substrate between the optical waveguide layer and the image sensor and having a second refractive index associated therewith that is lower than first refractive index. A collimation layer may be between the image sensor and the substrate. A light source may be configured to transmit light into the optical waveguide so that the light therein undergoes a total internal reflection. The optical waveguide may be adjacent the imaging surface so that an object brought into contact with the exposed user surface disturbs the total internal reflection resulting in an image pattern on the imaging surface.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: December 12, 2017
    Inventor: Mathieu Reigneau
  • Patent number: 9837031
    Abstract: An apparatus and method for driving an LCD device is disclosed to obtain rapid response speed and to enhance picture quality, in which the apparatus includes a liquid crystal panel that includes liquid crystal cells formed in areas defined by gate and data lines; a gate driver that supplies a scan pulse to the gate lines; a timing controller that modulates source data supplied from the external to modulated data for a rapid response speed of liquid crystal cell, and generates discrimination signals by comparing source data of a current frame with uppermost and lowermost gray scales of source data based on whether source data of a current frame is the same as source data of a previous frame or not; and a data driver that converts the modulated data into a video signal by using a plurality of gamma voltages including a first modulation voltage that is higher than an maximum gamma voltage or a second modulation voltage that is lower than a minimum gamma voltage, and supplies the video signal to the data lines.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: December 5, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Song Ryol You
  • Patent number: 9833706
    Abstract: A touch panel detects a point in one of a plurality of unit areas at which an input was made, the unit areas being arranged in a matrix in an instruction plane. A game apparatus repeatedly acquires detection coordinates for locating a unit area detected by a pointing device. Also, the game apparatus repeatedly calculates, in response to the acquisition of the detection coordinates, detailed coordinates by which a point can be represented with accuracy in more detail than by the detection coordinates. The detailed coordinates indicate a point in the direction of a unit area indicated by previously acquired detection coordinates, as viewed from a predetermined reference point within a unit area indicated by currently acquired detection coordinates.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: December 5, 2017
    Assignee: Nintendo Co., Ltd.
    Inventor: Keizo Ohta
  • Patent number: 9837024
    Abstract: A scan driving circuit and a driving method thereof, an array substrate, and a display apparatus are disclosed.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: December 5, 2017
    Inventors: Lirong Wang, Liye Duan
  • Patent number: 9824626
    Abstract: The semiconductor device includes a transistor and a capacitor element which is electrically connected to a gate of the transistor. Charge held in the capacitor element according to total voltage of voltage corresponding to the threshold voltage of the transistor and image signal voltage is once discharged through the transistor, so that variation in current flowing in the transistor or mobility of the transistor can be reduced.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: November 21, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 9823777
    Abstract: A touch panel driving device includes: a noise detection section (43) that detects the presence or absence of at least external noise of an input operation performed on a touch panel (30); and a liquid crystal drive parameter setting section (51) that, in a case where the presence of external noise has been detected by the noise detection section (43), executes a process for reducing the external noise by adjusting a cycle or duration of a 1H period.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: November 21, 2017
    Inventors: Kazuya Takayama, Kenji Maeda, Masayuki Natsumi, Tatsuo Watanabe, Yuichi Sato, Tetsuya Umekida
  • Patent number: 9824622
    Abstract: In a method for determining a position of at least one display screen within an array of coupled display screens an emitted signal from an adjacent display screen is detected. The detecting is performed by a sensor coupled with a side of a plurality of sides of a display screen. A positional code number is determined based on the detecting. The positional code number includes a bit number corresponding to a detection of the signal emitted from the adjacent display screen.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: November 21, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Amir Said, Majid Fozunbal
  • Patent number: 9823788
    Abstract: A capacitive in-cell touch panel, a display device and a driving method are provided. For the capacitive in-cell touch panel, at least one gate line (4) or at least one data line (5) is reused as a first touch sensing electrode, a plurality of mutually independent common electrodes (6) are disposed to intersect the first touch sensing electrode, and at least one common electrode (6) is reused as a second touch sensing electrode. The capacitive in-cell touch panel can reduce the number of masking in the manufacturing process, reduce the thickness of the touch panel and reduce the production cost. In the driving process of the touch panel, certain period is set aside of a frame of picture as touch period, that is, a time division driving mode is used for the touch time period and the display time period, it is also possible to avoid mutual interference between display signals and touch driving signals and in turn guarantee the quality of displayed picture and the touch accuracy.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: November 21, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Wei Qin
  • Patent number: 9817522
    Abstract: A touch screen and a touch point positioning method are disclosed. The touch screen comprises a display panel and a touch point positioning device, the touch point positioning device comprises a timing unit, a calculating unit and n receiving units, the receiving units are provided in edge areas of the display panel, the receiving units are connected with the timing unit, and the timing unit is connected with the calculating unit. According to technical solutions of the present invention, the receiving units receive an acoustic wave signal generated at a touch point when the display panel is touched, the timing unit records reception times when the receiving units receive the acoustic wave signal, and the calculating unit calculates a position coordinate of the touch point on the display panel according to the reception times of the receiving units recorded by the timing unit, thus achieving positioning of the touch point.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: November 14, 2017
    Inventor: Jin Sha
  • Patent number: 9817492
    Abstract: A wireless electronic pen set in association with a terminal device having a display is disclosed, the set comprising: a wireless electronic pen; a wireless stick communicating with the pen in a wireless manner, wherein the stick is physically and removably secured to the terminal device and communicates with the device in a wired manner, wherein the wireless electronic pen includes: a touch input unit to receive a touch input from a user; a first wireless communication unit to communicate with the stick; and a controller to enable the touch input to be sent to the device via the wireless communication unit, wherein the stick includes: a second wireless communication unit to communicate with the pen; and a connector electrically connected to the device, wherein the touch input is transferred via the second wireless communication unit and the connector to the device.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: November 14, 2017
    Inventor: Inchul Park
  • Patent number: 9811178
    Abstract: A touch input device configured to detect stylus signals generated by an external stylus is provided. The touch input device includes a plurality of stylus signal detectors that can receive the stylus signal and estimate the start and end time of the stylus signal in order to facilitate windowed demodulation of signal. The start and end times are then used to facilitate a windowed demodulation of the stylus signal.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 7, 2017
    Assignee: Apple Inc.
    Inventor: Shahrooz Shahparnia
  • Patent number: 9805656
    Abstract: An organic light emitting display device, a pixel circuit of the organic light emitting display device and a method of driving the same are disclosed. The pixel circuit comprises a driving transistor, a first transistor, a second transistor, a third transistor, a fourth transistor, a first capacitor, a second capacitor, a light emitting diode and a compensating diode. The degradation of the light emitting diode is compensated by the compensating diode. Since the degradation phenomena of the light emitting diode is compensated by the compensating diode, the light emitting diode is able to maintain an effective and normal brightness while using the same driving voltage, thereby ensuring higher display quality of images and scenes of the organic light emitting display device.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: October 31, 2017
    Inventors: Xiaoxu Hu, Li Zhang
  • Patent number: 9798418
    Abstract: An in-cell touch panel and a display device are provided. The in-cell touch panel comprises a plurality of self-capacitance electrodes, a touch detection chip, and a plurality of conductive lines connecting the plurality of self-capacitance electrodes to the touch detection chip. The plurality of self-capacitance electrodes are arranged in columns, and any two self-capacitance electrodes in two adjacent columns are not in a same row; or, the plurality of self-capacitance electrodes are arranged in rows, and any two self-capacitance electrodes in two adjacent rows are not in a same column. The touch detection chip determines a touch position by detecting signals of the self-capacitance electrodes.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: October 24, 2017
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Xiaoliang Ding, Haisheng Wang, Yingming Liu, Wei Liu, Changfeng Li, Tao Ren
  • Patent number: 9792866
    Abstract: Methods for detecting and eliminating a ghosting effect of liquid crystal display (LCD) are disclosed. The ghosting effect detecting method comprises the steps of providing a visual persistency period, providing a maximum color alternation speed of the LCD, obtaining a threshold value by multiplying the human visual persistency period by the maximum color alternation speed, calculating a variation of an intensity level of each of the plurality of pixel components of the LCD and comparing the threshold value and the variation of the intensity level to obtain a comparison result to determine whether the ghosting effect exists in the pixel component.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: October 17, 2017
    Assignee: Flextronics Computing Mauritus Ltd.
    Inventors: Chao-Hua Lee, Jong-Dae Oh, Xiao-Song Zhou, C.-C. Jay Kuo
  • Patent number: 9791706
    Abstract: A multi-planar plenoptic display assembly is provided that includes multiple spatially-varying light emitting and light modulating planes. The display assembly includes at least one light emitting device and may include, but does not require, a modulating device used in conjunction according to display methods taught herein to display light field data. A display assembly controller may be used to render a light field with depth into a multi-planar plenoptic display assembly by assigning decomposed portions of the light field to the display assembly for display or presentation by differing ones of the emitting elements and by operating a modulating device to provide a parallax barrier. In one embodiment, a dynamic parallax barrier and a number of bi-state screens. Another embodiment uses a beam splitter to co-locate two pairs of autostereoscopic displays each including a projector projecting 3D content, a parallax barrier, and an emissive/projector element.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: October 17, 2017
    Inventors: Nicola V. Ranieri, Simon Heinzle, Peter C. Barnum, Wojciech Matusik, Marcus Gross
  • Patent number: 9779661
    Abstract: A pixel circuit comprising two sub pixel circuits, each of which includes: five switching units, a driving unit, an energy storage unit and an electroluminescent unit. A first switching unit, a second switching unit and a fifth switching unit of a first sub pixel circuit and a first switching unit, a second switching unit and a fifth switching unit of a second sub pixel circuit share a scanning signal line. In the pixel circuit, the operating current flowing through the electroluminescent unit is not affected by the threshold voltage of the corresponding driving transistor, which solves the problem of non-uniformity of display luminance because of the threshold voltage drift of the driving transistor.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: October 3, 2017
    Inventor: Shengji Yang
  • Patent number: 9778516
    Abstract: According to one embodiment, a liquid crystal optical device includes a first substrate unit, a second substrate unit, a liquid crystal layer, and a driver. The first substrate unit includes first electrodes, a second electrode, and a third electrode. The second substrate unit includes an opposing electrode provided on a second surface opposing the first surface. The liquid crystal layer is provided between the first substrate unit and the second substrate unit. The driver sets the first electrodes, the second electrode and the third electrode to a first potential, a second potential and a third potential respectively. A distance between the first electrode and the second electrode is longer than a distance between the second electrode and the third electrode. A difference between the first potential and the second potential is larger than a difference between the second potential and the third potential.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: October 3, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinichi Uehara, Masako Kashiwagi, Ayako Takagi
  • Patent number: 9778767
    Abstract: To achieve an improved touch operation, a display control apparatus includes a monitor unit provided with a display unit and rotatably connected to a main body via a hinge portion, a touch panel configured to detect a touch operation on the display unit, a variable angle state detection unit configured to detect a position of the monitor unit, and a system control unit configured to display a Q button to be used for releasing lock at a position nearer to the hinge portion than other display items when it is determined that the monitor unit is moved from a first position to a second position based on the detection result of the variable angle state detection unit.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 3, 2017
    Inventors: Takeshi Nakata, Ryu Wakui, Hideki Narushima, Maiko Sato, Natsuko Miyazaki, Shingo Yamazaki
  • Patent number: 9773446
    Abstract: An electronic display includes a display panel, which includes an array of pixels and a driver configured to activate and deactivate the emission of light from each of the pixels in the array. The electronic display also includes a panel driver configured to generate and transmit an emission interrupt signal to the driver, wherein the emission interrupt signal causes the driver to deactivate the emission of light from all pixels in the array for a set period of time prior to a refresh of a line of pixels in the array.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: September 26, 2017
    Assignee: Apple Inc.
    Inventors: Wei H. Yao, Yafei Bi, Ahmad Al-Dahle
  • Patent number: 9767750
    Abstract: The present disclosure discloses a GOA unit for co-driving a gate electrode and a common electrode, including: a trigger; a first selective input circuit; a second selective input circuit which is used to respectively gate the high level input for common electrode and the high level input for gate electrode to the clock end of the trigger in different time sequences to pull up the voltage on the trigger output end; a third selective input circuit which is used to select level signals or edge signals on gate line n+1 and gate line n+4 to serve as the reset signal of the trigger; a fourth selective input circuit which is used to pull down the voltage thereon; a selective output circuit with the input being connected to the trigger output end, for selectively outputting a gate electrode driving signal or a common electrode driving signal.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: September 19, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology, Co., Ltd.
    Inventor: Xiangyang Xu