Patents Examined by Kwin Xie
  • Patent number: 9618763
    Abstract: According to one embodiment, a liquid crystal optical device includes first and second substrate units and a liquid crystal layer. The first substrate unit includes a first substrate having a first surface and a first side extending in a first side direction, and first electrodes provided on the first surface. The second substrate unit includes a second substrate having a second surface, and second electrodes provided on the second surface. The liquid crystal layer includes liquid crystal molecules provided between the first and second substrate units. A first angle in a first rotation direction from the first side direction to the first direction is less than 90 degrees and more than 0 degrees. A second angle in the first rotation direction is different from the first angle. A third angle in the first rotation direction is different from the first and second angles.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: April 11, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masako Kashiwagi, Shinichi Uehara, Ayako Takagi, Masahiro Baba
  • Patent number: 9613560
    Abstract: The invention discloses a backlight driving method, a backlight driving device, and a display device. The method comprises steps of: acquiring turn-on timings of respective areas of a backlight source of a display device and an opening timing of a 3D glasses; adjusting driving signals for the respective areas of the backlight source based on each length of overlapping time between the opening timing of the 3D glasses and each of the turn-on timings of the respective areas of the backlight source, thus making brightness of light from pictures corresponding to the respective areas of the backlight source in the display device be the same, said light being received through the 3D glasses; and driving the corresponding areas in the backlight source to be turned on by using the adjusted driving signals for the respective areas of the backlight source.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: April 4, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Shuo Chen
  • Patent number: 9594407
    Abstract: An electronic device includes a housing, a planar display section, a planar transparent member, a touch panel layer which detects two-dimensional coordinates of an indicator having a predetermined conductivity along a surface of the display section and a vertical distance to the indicator, and an acceleration detection section which detects at least one of an acceleration of the housing and an acceleration of the transparent member. The two-dimensional coordinates are determined as effective coordinates when the vertical distance is equal to or smaller than a first value. The two-dimensional coordinates are determined as the effective coordinates when the vertical distance is more than the first value and is equal to or smaller than a second value more than the first value, and the acceleration detection section detects a predetermined acceleration.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: March 14, 2017
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Tomoki Takano, Takeshi Yamaguchi
  • Patent number: 9584799
    Abstract: A method of driving a display device including a plurality of pixels, the method including transmitting a plurality of data signals to first group pixels during a first scan period, simultaneously emitting light through the first group pixels according to a programmed data signal during a first light emitting period adjacent to the first scan period, transmitting a plurality of data signals to second group pixels, different from the first group pixels, during a second scan period, and simultaneously emitting light through the second group pixels according to a programmed data signal during a second light emitting period adjacent to the second scan period. A first field including the first scan period and the first light emitting period and a second field including the second scan period and the second light emitting period are temporally divided.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: February 28, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Baek-Woon Lee
  • Patent number: 9583045
    Abstract: A display control circuit is capable of adjusting backlight intensity according to image content as well as compensating pixel values of frames for power saving and distortion reduction. The display control circuit includes a threshold determining circuit, a pulse width modulation (PWM) control circuit and a pixel value adjusting circuit. The threshold determining circuit determines a threshold according to a reference value by histogramming a to-be-displayed frame. The threshold is smaller than an upper limit of the pixel values, and a proportion of the number of pixel values between the threshold and the upper limit which occupy a total pixel number is lower than the reference value. The PWM control circuit generates a PWM signal for controlling a backlight luminance according to the threshold. The pixel value adjusting circuit adjusts the values of the pixels according to the threshold.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: February 28, 2017
    Assignee: MSTAR SEMICONDUCTOR, INC.
    Inventors: Jian-Kao Chen, Kuo-Hsiang Hung
  • Patent number: 9557837
    Abstract: This invention provides several touch input apparatuses and operating methods. One touch input apparatus includes two carbon nanotube (CNT) layers, a plurality of contact pads and a processing circuit. The CNTs of the two CNT layers are respectively disposed to two different arrangement directions. The contact pads are divided into two groups to electrically connect the edges of the two CNT layers respectively. Each group of the contact pads is arranged in a direction perpendicular to the arrangement direction of the corresponding carbon nanotubes. The processing circuit provides a comparison voltage to one group of the contact pads and reads out the voltages on the other contact pads. When one CNT layer receives an external force so that the forced position on one CNT layer is electrically connected to the other CNT layer, the processing circuit calculates the strength of the external force according to the readout voltage values.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: January 31, 2017
    Assignee: PIXART IMAGING INC.
    Inventor: Shu-Sian Yang
  • Patent number: 9558689
    Abstract: A pixel structure includes a plurality of red sub-pixels, white sub-pixels, blue sub-pixels and green sub-pixels, which are arranged to form a plurality of first sub-pixel cells and second sub-pixel cells. The first and second sub-pixel cells may be arranged to form a plurality of pixel cells. The pixel cells may be arranged in the vertical direction repeatedly to form a plurality of pixel array cells. The pixel array cells may be arranged in the horizontal direction repeatedly to form a plurality of pixel arrays. The pixel structure further includes a supplement pixel array disposed in the pixel arrays according to a preset mode and configured to supplement polarity inversion in the pixel structure. The sub-pixels with a same color in a same row in a same signal frame may not have a same polarity, thereby reducing flicker and horizontal crosstalk of images and improving the image display quality.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: January 31, 2017
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Kang Yang, Jun Ma, Tianyi Wu, Hao Chen
  • Patent number: 9557616
    Abstract: An image display panel assembly includes a flexible printed circuit (FPC), an image display panel, a gate driver integrated circuit (IC) package, and a source driver IC package. The FPC is configured to receive gate and source driving signals. The image display panel is electrically connected to the FPC, and includes a gate driving signal transfer pattern along a first edge of the image display panel, a source driving signal transfer pattern along a second edge adjacent to the first end, and a plurality of pixels. The gate driver integrated circuit (IC) package is configured to receive the gate driving signal through the gate driving signal transfer pattern and provide the gate driving signal to the plurality of pixels. The source driver IC package is configured to receive the source driving signal through the source driving signal transfer pattern and provide the source driving signal to the plurality of pixels.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: January 31, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ye-Chung Chung, Hee-seok Lee, Yun-Seok Choi, Keung-Beum Kim
  • Patent number: 9558843
    Abstract: A shift register unit, a gate driving circuit, and a display device are disclosed. The shift register unit comprising: a pull-up module for pulling up level signal at present-stage signal output based on a signal at a pull-up control node and a first clock input; a control module connected to a first voltage terminal and a second voltage terminal for controlling the level at the pull-up control node based on a signal inputted to a first signal input and a second clock input; and a reset module for resetting the level signal outputted from the present-stage signal output based on a signal inputted to a second signal input. Signal lines and TFTs integrated in the shift register unit may be reduced, thereby saving space occupied by the circuit and reducing product cost.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: January 31, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Rui Ma, Ming Hu, Guolei Wang
  • Patent number: 9558698
    Abstract: A driving method for driving a display apparatus including a plurality of pixels, a plurality of data lines and a data driver. The data driver includes a first latch outputting a first sample data signal to a second latch, the second latch, a first charge sharing line and a second charge sharing line. The method includes performing a first charge sharing when a polarity of one of the pixels changes so as to output a first calibrated data signal to the data line electrically coupled to the pixel, and executing a second charge sharing when the most significant bit of the first sample data signal is different from the most significant bit of the second sample data signal so as to output a second adjusted data signal to the data line.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: January 31, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Wei-Jyun Chen, Chun-Fan Chung, Szu-Che Yeh
  • Patent number: 9557953
    Abstract: Techniques related to viewing a private image are described herein. The techniques may include a public device including a processor and a public display to display a display image. The techniques may also include an input receiver to receive input at the public device, and a privacy controller to alter the display image from the public display when the display image is private. Techniques may further include a transmitter to transmit the display image to a private device when the display image is private.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: January 31, 2017
    Assignee: Intel Corporation
    Inventors: Ramon Cancel Olmo, Shawn Lee
  • Patent number: 9558696
    Abstract: This specification relates to an electrophoretic display device, and particularly, to an electrophoretic display device capable of reducing power consumption by blocking a leakage current generated from a Power On Reset (POR) circuit which resets each driver Integrated Circuit (IC) at an initial period, whereby a transistor as an active element connected to a POR circuit may be turned on by applying a positive voltage, other than a power supply voltage, to a gate thereof at an image update period to drive a bias block, and thereafter turned off at an image static period, thereby blocking a leakage current and accordingly reducing power consumption.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: January 31, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: HoWon Son, ChungWan Oh
  • Patent number: 9552121
    Abstract: A processing system for a capacitive sensing input device comprises a sensing module, a first internal diagnostic mechanism, and a determination module. The sensing module is configured to couple with a first sensor electrode path of a plurality of sensor electrode paths, and is configured to drive the first sensor electrode path with a first signal. The first internal diagnostic mechanism is configured to couple with a second sensor electrode path and to acquire a test signal output while the sensing module drives the first sensor electrode path with the first signal. The first internal diagnostic mechanism comprises a selectable current source configured to couple with the second sensor electrode path, and the selectable current source is enabled during acquisition of the test signal output. The determination module is configured to determine whether the first and second sensor electrode paths are ohmically coupled together based on the test signal output.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: January 24, 2017
    Assignee: Synaptics Incorporated
    Inventors: Jorge Saucedo, John M. Weinerth, Wen Fang
  • Patent number: 9552106
    Abstract: An acoustic touch apparatus is provided that includes a substrate capable of propagating surface acoustic waves, such as Rayleigh-type or Love-type waves. The substrate has a front surface, a back surface, and a curved connecting surface formed between the front surface and the back surface. The apparatus also includes at least one acoustic wave transducer and at least one reflective array, the acoustic wave transducer and the reflective array behind the back surface of the substrate. The acoustic wave transducer is capable of transmitting or receiving surface acoustic waves to or from the reflective array. The reflective array is capable of acoustically coupling the surface acoustic waves to propagate from the back surface and across the front surface via the curved connecting surface. Various types of acoustic touch apparatus with edge sensitive touch functions can be provided, according to specific embodiments.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: January 24, 2017
    Assignee: Elo Touch Solutions, Inc.
    Inventors: Yoshikazu Tanaka, Ting Gao, Joel C. Kent, Jeffrey T. Haller, Daniel H. Scharff, Timothy O. Avery
  • Patent number: 9552073
    Abstract: There is provided an electronic device including a plurality of sensing devices and a host. The sensing devices are connected in parallel or series. A part of the sensing devices and the host may remain in a power saving mode or a standby mode in operation so as to reduce the power consumption.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: January 24, 2017
    Assignee: Pixart Imaging Inc.
    Inventors: Chia-Yi Liu, Shih-Wei Kuo, Chun-Wei Chen, Nien-Tse Chen
  • Patent number: 9477394
    Abstract: A multi-display device is adapted to be dockable or otherwise associatable with an additional device. In accordance with one exemplary embodiment, the multi-display device is dockable with a smartpad. The exemplary smartpad can include a screen, a touch sensitive display, a configurable area, a gesture capture region(s) and a camera. The smartpad can also include a port adapted to receive the device. The exemplary smartpad is able to cooperate with the device such that information displayable on the device is also displayable on the smartpad. Furthermore, any one or more of the functions on the device are extendable to the smartpad, with the smartpad capable of acting as an input/output interface or extension of the smartpad. Therefore, for example, information from one or more of the displays on the multi-screen device is displayable on the smartpad.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: October 25, 2016
    Assignee: Z124
    Inventors: Sanjiv Sirpal, Martin Gimpl, John Steven Visosky, Alexander de Paz
  • Patent number: 9417747
    Abstract: In a touch sensor panel 10 for inputting a position by a touch operation to a predetermined region, a plurality of drive lines DL disposed in one direction and a plurality of sense patterns SL disposed in another direction intersect each other and an electrode size of an electrode of a sense pattern (sense electrode pattern) in one direction disposed between adjacent intersections is switched between at least two electrode sizes of large and small. The configuration enables power consumption to be small while maintaining detection precision of a touched position.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: August 16, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Manabu Yumoto, Shunsuke Nagasawa, Yusuke Kanazawa, Qian Yan
  • Patent number: 9418631
    Abstract: A display control apparatus is capable of reducing image scaling times, maintaining image quality, and extending a turn-on time of a pair of 3D glasses. The display control apparatus includes a data processing unit and a timing generating unit. The data processing unit provides an image frame comprising a valid data region, which is larger than a visual region of a display panel. The timing generating unit generates an output timing signal according to a relative position of the visual region corresponding to the valid data region, so that a partial region of the valid data region corresponds to the visual region of the display panel. The partial region of the valid data region is displayed in the visual region of the display panel according to the output timing signal.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: August 16, 2016
    Assignee: MSTAR SEMICONDUCTOR, INC.
    Inventor: Kun-Nan Cheng
  • Patent number: 9412325
    Abstract: An array substrate is provided comprising a base substrate; an array of pixel electrodes formed on the base substrate; a plurality of gate lines, each of which is formed corresponding to each row of pixel electrodes; a plurality of data lines, each of which is formed corresponding to each odd number column of pixel electrodes and the next adjacent even number column of pixel electrodes; a plurality of first switching devices, each of which is connected with each odd-number-column pixel electrode, and the data lines charging the corresponding odd-number-column pixel electrodes via the corresponding first switching devices under driving control in corresponding time sequence; a plurality of second switching devices, each of which is connected with each even-number-column pixel electrode, and the data lines charging the corresponding even-number-column pixel electrodes via the corresponding second switching devices under driving control in corresponding time sequence.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: August 9, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hailin Xue, Yubo Xu, Cheng Li, Xiaochuan Chen, Xin Li, Shunshun Qiu
  • 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