Patents Examined by Mihir Rayan
  • Patent number: 8907992
    Abstract: An overdriving value generating method adapted to a liquid crystal display (LCD) is provided. The overdriving value generating method includes the following steps. A current gray value and a previous gray value are received. A first gray reference value and a second gray reference value closed to the current gray value, and a first previous gray reference value and a second previous gray reference value closed to the previous gray value, and four first overdriving values are obtained according a look-up table (LUT). A target overdriving value corresponding to the current gray value and the previous gray value is obtained through a four dots interpolation operation or a parallelogram interpolation operation according to the current gray value, the previous gray value, the first gray reference value, the second gray reference value, the first previous gray reference value, the second previous gray reference value, and the first overdriving values.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: December 9, 2014
    Assignee: Innolux Corporation
    Inventors: Fu-Chi Yang, Guo-Wei Peng, Ching-Hung Liu, Shih-Hsiang Ting
  • Patent number: 8907930
    Abstract: Methods and devices are provided for determining location of an input on a surface of a device using an acoustic sensing element. An exemplary method begins by determining an anticipated acoustic response resulting from an output generated by a component of the device at the acoustic sensing element. The method continues by subtracting the anticipated acoustic response from a measured acoustic response at the acoustic sensing element to obtain a nominal acoustic response, and determining the location of the input based on the nominal acoustic response.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: December 9, 2014
    Assignee: Motorola Mobility LLC
    Inventors: William Alberth, Michael Schellinger
  • Patent number: 8896576
    Abstract: A touch panel includes: an infrared light transmitting material through which infrared light is transmitted and which has a surface as a touch surface (20) touched by a detection subject; area sensors (3) including photo sensor elements (4) below a touch region, which is touched by the detection subject, of the infrared light transmitting material; and infrared light sources (1) provided outside the touch region, the infrared light sources (1) emitting infrared light along said surface of the infrared light transmitting material such that an entire circumference of the detection subject touching the touch surface (20) is irradiated with the infrared light, the touch panel detecting a position touched by the detection subject so that the photo sensor element (4) receives, among infrared light emitted by the infrared light sources (1) along said surface, infrared light reflected by the detection subject and transmitted through the infrared light transmitting material.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: November 25, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shinichi Miyazaki, Hiroshi Hamada, Mikihiro Noma, Kengo Takahama, Masakazu Wada, Norikazu Hohshi
  • Patent number: 8890854
    Abstract: A method for calibrating a touch sensor panel including a plurality of touch electrodes is provided. The method includes determining, for each of the plurality of touch electrodes, a contribution in terms of capacitance to a total capacitance of the touch sensor panel; and allocating a fraction of a fixed period of time for measuring a capacitance of each of the plurality of electrodes based on the electrode's contribution to the total capacitance.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: November 18, 2014
    Assignee: Apple Inc.
    Inventors: Matthew D. Tenuta, Louis W. Bokma
  • Patent number: 8890816
    Abstract: An input system for an electronic device including a main body includes an input device installed outside of the main body, comprising a plurality of input units denoted by a plurality of corresponding input symbols, a control device installed outside of the main body for pressing at least one of the plurality of input units for generating an indication signal, a camera for taking an image of the control device pressing the input unit, the image including the indication signal, and an image processing unit installed in the main body and coupled to the camera, for recognizing the pressed input unit according to a location of the indication signal in the image and generating input data corresponding to an input symbol denoting the pressed input unit.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: November 18, 2014
    Assignee: Wistron Corporation
    Inventors: Thomas Ji, Wei-Dong Shi, Tomy Liu, Hou-Cheng Chen
  • Patent number: 8810490
    Abstract: In a display apparatus, a plurality of pixels are arranged in first and second directions, and each pixel includes at least one dot. A plurality of data lines are provided between two adjacent dots while extending in the first direction. A plurality of gate lines are provided between two adjacent dots while extending in the second direction. Among dots arranged in the first direction between an mth data line and an (m+1)th data line, at least one first dot is connected to one of the mth data line and the (m+1)th data line, and at least one second dot is connected to one of an (m?1)th data line and an (m+2)th data line. Accordingly, the display quality of the display apparatus including four dots or an even number of dots is improved.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: August 19, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sungjae Moon, Donggyu Kim, Seongyoung Lee, Ji-Sun Kim
  • Patent number: 8780045
    Abstract: A system and method for tracking movement between a surface and an optical navigation device are described. In an embodiment, the optical navigation device has an image sensor that includes an array of pixels and motion tracking involves acquiring image information, the image information including pixel values that correspond to the pixels, calculating a surface quality (SQUAL) value from the image information, determining a level of saturation of the pixel array from pixel values of the image information, comparing the determined level of saturation of the pixel array to a saturation threshold, increasing a SQUAL threshold if the determined level of saturation of the pixel array is greater than the saturation threshold, and deciding whether or not to output motion tracking information in response to a comparison of the SQUAL value to the SQUAL threshold. Other embodiments of the method are also described.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: July 15, 2014
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Willie Song, Siew Chin Lee, Keng Yeen Lye
  • Patent number: 8760367
    Abstract: The mobile communication terminal comprises a first casing and a second casing carrying a first display part and a second display part, respectively. The first display part and the second display part are each capable of 3D display. The controller of the mobile communication terminal detects the mobile communication terminal being opened vertically or horizontally and detects the opening angle between the first casing and the second casing. In the 3D display in the horizontal opened state, the visibility of the 3D display is altered as the opening angle is changed. Therefore, the controller of the mobile communication terminal calculates the viewing angle according to the detected opening angle and changes the parameters for the 3D display, whereby excellent visibility is maintained even if the opening angle is changed.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: June 24, 2014
    Assignee: NEC Corporation
    Inventor: Ken Yoshino
  • Patent number: 8736572
    Abstract: The invention discloses a touch input device and a touch sensor circuit. The touch input device includes a touch panel, a selection module and a differential detection module. The touch panel includes a plurality of capacitive nodes thereon. The selection module is electrically connected with the capacitive nodes of the touch panel. The selection module selects a first capacitive node and a second capacitive node from the capacitive nodes. The second capacitive node is close to the first capacitive node. The differential detection module, electrically connected to the selection module, is used for detecting a capacitance difference between the first capacitive node and the second capacitive node. According to the capacitance difference, the differential detection module generates a touch detection signal.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: May 27, 2014
    Assignee: Raydium Semiconductor Corporation
    Inventors: Shih-Tzung Chou, Yu Kuang, Zong-Lin Wu, Yong-Nien Rao
  • Patent number: 8730274
    Abstract: A liquid crystal display (LCD) system including a liquid crystal (LC) panel; an LC panel controller to send output code values to the LC panel; a backlight to illuminate the LC panel; a backlight controller; and a display controller to control the backlight controller and the LC panel controller, and receive input code values from an image source is presented wherein the LCD system uses a dynamic knee point determination of soft clipping to provide output code values to the LC panel. A method for using an LCD system as above is also provided.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: May 20, 2014
    Assignee: Synaptics Incorporated
    Inventors: Ye-long Chiou, Louie Lee, Futoshi Hayashida, Vladimir Lachine
  • Patent number: 8730133
    Abstract: The present invention provides a display device includes: a pixel array section including a set of pixels arranged in a form of a matrix; and a driving section for driving the pixel array section.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: May 20, 2014
    Assignee: Sony Corporation
    Inventor: Takao Tanikame
  • Patent number: 8686970
    Abstract: An touch input electronic device includes: a touch input device; a clock generation circuit, generating a first clock and a second clock; a touch sensing circuit, coupled to the touch input device, the touch sensing circuit operated under the first clock; a logic circuit, receiving a sensing output signal from the touch sensing circuit, the logic circuit operated under the second clock; and a conversion circuit, outputting an output voltage under control of the logic circuit, the output voltage coupled to the touch sensing circuit, the conversion circuit operated under the second clock. In response to the sensing output signal from the touch sensing circuit, the logic circuit controls the conversion circuit to adjust the output voltage to detect a capacitance variance of the touch input device.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: April 1, 2014
    Assignee: Raydium Semiconductor Corporation
    Inventors: Yu Kuang, Shih-Tzung Chou
  • Patent number: 8681090
    Abstract: An electrophoretic display panel includes a first substrate, a second substrate, a partition wall, first electrodes, a second electrode, a dispersant, positively-charged particles, negatively-charged particles, weakly-charged particles, switching thin film transistors, scanning lines, and signal lines. Pixel spaces are surrounded by the partition wall, the first substrate and the second substrate. Two of the first electrodes are formed on the first substrate in each pixel. The second electrode facing the first electrodes is formed on the second substrate. The dispersant with the positively-charged particles, the negatively-charged particles, and weakly-charged particles is contained in the pixel spaces. The switching thin film transistors are connected to the first electrode, and the signal line. The scanning lines supply scanning signals to gate electrodes of the switching thin film transistors. The signal lines input a data signal to the switching thin film transistors.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: March 25, 2014
    Assignee: Casio Computer Co., Ltd.
    Inventor: Takashi Miyashita
  • Patent number: 8674928
    Abstract: The present disclosure relates to a liquid crystal display device including a timing controller and a method for updating the software of the timing controller. The present disclosure suggests liquid crystal display device comprising timing controller including a processor configured to execute software for modulating digital video data to be supplied to the data driving circuit and selecting the backlight dimming data, and a timing control signal generator configured to generate timing control signals to control operating timings of the data driving circuit and the gate driving circuit.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: March 18, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Taewook Lee
  • Patent number: 8665244
    Abstract: Optical touch detection is provided by an interactive display device including an elastomer layer, a reflector configured to transmit light having a first characteristic and to reflect light having a second characteristic, and a display positioned to output modulated light having the first characteristic through the elastomer layer and the reflector as a display image. The interactive display device further comprises a test light source positioned to output light having the second characteristic through the elastomer layer for reflection off of the reflector, and a sensor configured to receive light having the second characteristic reflected from the reflector.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: March 4, 2014
    Assignee: Microsoft Corporation
    Inventors: Timothy Large, Neil Emerton
  • Patent number: 8654116
    Abstract: A signal conversion circuit is disclosed which is suitably used in a multiprimary liquid crystal display device, and a multiprimary liquid crystal display device having such a signal conversion circuit. A signal conversion circuit according to one embodiment of the present invention is for use in a multiprimary liquid crystal display device, and converts an input video signal to a multiprimary signal corresponding to four or more primary colors. When generating a multiprimary signal for displaying dark skin, the signal conversion circuit according to an embodiment of the present invention applies a conversion to the video signal so that a color difference ?u?v?=((u??u60?)2+(v??v60?)2) is 0.03 or less, the color difference ?u?v? being defined by CIE1976 chromaticity coordinates (u?, v?) representing a chromaticity when the pixel is viewed from the frontal direction and CIE1976 chromaticity coordinates (u60?, v60?) representing a chromaticity when the pixel is viewed from a 60° oblique direction.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: February 18, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazunari Tomizawa, Tomohiko Mori, Shun Ueki, Takao Muroi
  • Patent number: 8654054
    Abstract: Disclosed herein are a liquid crystal display device which is capable of driving a liquid crystal using image signals supplied to two adjacent data lines, and a driving method thereof. The liquid crystal display device has a plurality of liquid crystal cells formed respectively in pixel areas defined by intersections of n gate lines and m data lines. Each of the liquid crystal cells includes a thin film transistor connected to any one of the gate lines and any one of two data lines adjacent respectively to left and right sides of a corresponding one of the liquid crystal cells, among the data lines, and a liquid crystal capacitor and a storage capacitor each formed between the other one of the two adjacent data lines and the thin film transistor.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: February 18, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Ju Young Lee
  • Patent number: 8638282
    Abstract: In one embodiment of the present invention, a liquid crystal display device according to the present invention includes a plurality of pixels, each including first and second subpixels. When a predetermined grayscale tone is displayed continuously through four or more consecutive even number of vertical scanning periods, the first and second subpixels have different luminances in at least two of the even number of vertical scanning periods, first polarity periods that are included in the vertical scanning periods and that maintain a first polarity are as long as second polarity periods that are also included in the vertical scanning periods and that maintain a second polarity for each of the first and second subpixels, and in each of the first and second polarity periods, the difference between the average of effective voltages applied to the liquid crystal layer of the first subpixel and that of effective voltages applied to the liquid crystal layer of the second subpixel is substantially equal to zero.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: January 28, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Fumikazu Shimoshikiryoh, Masae Kitayama, Kentaro Irie
  • Patent number: 8638305
    Abstract: A method for executing an application program is disclosed. One or more icons are displayed on a touch panel. If a user's fingerprint is authenticated on the touch panel, an application program is given access to designated personal information. The application program is then executed using the designated personal information, if the detected action is an information-designated start operation.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: January 28, 2014
    Assignee: KYOCERA Corporation
    Inventor: Akiko Inami
  • Patent number: 8633883
    Abstract: The exemplary embodiment relates to a liquid crystal display device.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: January 21, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Hong Sung Song, Chaeyoul Cho, Woongki Min, Yonggi Son, Suhyuk Jang