Patents Examined by Jeffrey A Parker
  • Patent number: 9927624
    Abstract: A display screen (E), advantageously of the flat type, comprising a matrix of pixels (P) arranged in rows and columns perpendicular to said rows, each pixel comprising three or more sub-pixels (SP) of different colors (RGB), in alignment in the direction of said rows and presenting a shape that is elongate, the screen being characterized in that each said sub-pixel presents a main dimension forming a non-zero angle ? relative to the direction of said columns. The screen may advantageously be fitted with an angle selection array for autostereoscopic display having main axes forming an angle ? relative to the direction of said columns and at a pitch that enables M?2 sub-pixels to be covered.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: March 27, 2018
    Assignee: ALIOSCOPY
    Inventor: Pierre Allio
  • Patent number: 9921649
    Abstract: A user input element includes a first part having a first capacitive surface, a second part having a second capacitive surface configured to be movable relative to the first capacitive surface, and an insulator positioned in between the first capacitive surface and the second capacitive surface so that a haptic effect is generated when the second capacitive surface is moved relative to the first capacitive surface from a first position to a second position. The user input element may be part of a haptic feedback interface system configured to provide haptic effects to a user operating the system.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: March 20, 2018
    Assignee: Immersion Corporation
    Inventors: Danny A. Grant, Daniel Gregory Parker
  • Patent number: 9898123
    Abstract: A sensing device includes a comparator, a first and a second variable capacitor unit. A first comparator input of the comparator is electrically coupled to a touch pad. The first variable capacitor unit is configured to charge the first comparator input such that the first comparator input has a first potential. The second variable capacitor unit is configured to charge a second comparator input of the comparator such that the second comparator input has a second potential. The comparator is configured for comparing the first potential and the second potential to generate a comparator output signal. In a condition of the touch pad being operated, the first variable capacitor unit is adjusted according to the comparator output signal to perform potential compensation for the first comparator input, or the second variable capacitor unit is adjusted according to the comparator output signal to perform potential compensation for the second comparator input.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: February 20, 2018
    Assignee: Nuvoton Technology Corporation
    Inventors: Cheng-Chih Wang, Chih-Ping Lu
  • Patent number: 9898960
    Abstract: The present disclosure provides a pixel circuit, its driving method, an OLED display panel and an OLED display device. The pixel circuit includes row pixel units each including subpixel units. The row pixel unit includes an auxiliary compensating circuit, which is configured to generate a switching control signal inputted to a subpixel driving circuit according to a scanning signal from a gate driving circuit, and generate a compensating control signal inputted to the subpixel driving circuit according to a control signal from the gate driving circuit. The subpixel driving circuit is configured to receive a data voltage from a data line accordance to the switching control signal, control a driving transistor to drive an OLED to emit light according to the data voltage, and compensate for a threshold voltage of the driving transistor according to the compensating control signal when the driving transistor drives the OLED to emit light.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: February 20, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fei Yang, Chen Zhang, Yue Wu
  • Patent number: 9891761
    Abstract: There are provided a touch sensing device and a touchscreen device. The touch sensing device includes: a driving circuit applying a driving signal having a predetermined first period to a node capacitor; a buffer circuit converting capacitance of the node capacitor into a voltage signal; a buffer capacitor being charged and discharged depending on an output voltage from the buffer circuit; and an integration circuit integrating voltages charged in the buffer capacitor, wherein, in a normal touch mode, the buffer circuit integrates capacitance of the node capacitor to generate the voltage signal, and, in a proximity touch mode, the buffer circuit generates the voltage signal by following the voltages charged in the node capacitor.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: February 13, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byeoung Hak Jo, Moon Suk Jeong, Yong Il Kwon, Tah Joon Park
  • Patent number: 9870053
    Abstract: Systems and methods for haptic feedback using laterally driven piezoelectric actuators are disclosed. For example, one described apparatus for haptic feedback using laterally driven piezoelectric actuators includes: a base; a touch-sensitive interface comprising an interface surface, the touch-sensitive interface affixed to the base and configured to move in a direction lateral to the interface surface; and a piezoelectric actuator mounted to the base and to the touch-sensitive interface and configured to receive a haptic signal and output a force in a direction lateral to the interface surface.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: January 16, 2018
    Assignee: Immersion Corporation
    Inventors: Ali Modarres, Li Jiang, Manuel Cruz, Remy Pieron, Frank Ye, Pedro Gregorio, Danny Grant, Neil Olien
  • Patent number: 9865199
    Abstract: A backlight drive circuit supplies drive current to a plurality of backlights, each of the backlights is extinguished before a signal voltage is written to a liquid crystal pixel group of a line corresponding to the backlight, each drive current in the lit period of each of the backlights is a first current when the adjustment value is a first adjustment value and a second current whose current value is higher than the first current when the adjustment value is a second adjustment value that is lower than the first adjustment value, and the lighting duty ratio to obtain a given luminance using the second current is smaller than the lighting duty ratio to obtain the luminance using the first current.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: January 9, 2018
    Assignee: Funai Electric Co., Ltd.
    Inventors: Tatsuya Kita, Kazuhiro Ishibashi
  • 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
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Jin Sha
  • 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
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Xiaoxu Hu, Li Zhang
  • 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
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takeshi Nakata, Ryu Wakui, Hideki Narushima, Maiko Sato, Natsuko Miyazaki, Shingo Yamazaki
  • 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
  • Patent number: 9696856
    Abstract: A method of detecting touch events on a touch panel includes identifying sets of coordinate locations based on at least one signal from at least one sensor. The at least one signal is responsive to at least one touch event, and the coordinate locations represent matches with respect to template fingerprints. Consecutive ones of the sets of coordinate locations are compared based on a first distance threshold to form streams of spatially continuous coordinate locations that satisfy the first distance threshold. A touch event is identified corresponding to one of the streams of spatially continuous coordinate locations, the stream having a minimum number of spatially continuous coordinate locations.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: July 4, 2017
    Assignee: ELO TOUCH SOLUTIONS, INC.
    Inventor: Henry M. D'Souza
  • Patent number: 9665214
    Abstract: The embodiments described herein provide devices and methods that facilitate improved sensor devices. In one embodiment, a capacitive input device is provided that includes a processing system, a plurality of sensing electrodes configured to sense objects in a sensing region, a conductor, and a shield layer comprising at least one shield electrode, where the at least one shield electrode is disposed between the plurality of sensing electrodes and the conductor. The processing system is configured to operate in a first mode and a second mode. When operating in the first mode the processing system is configured to determine position information for objects in the sensing region using the plurality of sensing electrodes. When operating in a second mode the processing system is configured to electrically float the at least one shield electrode and to determine force information for objects in the sensing region using the plurality of sensing electrodes.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: May 30, 2017
    Assignee: Synaptics Incorporated
    Inventors: Tom R. Vandermeijden, Jeffrey A. Small
  • Patent number: 9645681
    Abstract: Optical touch display system includes a light source, a reflector, an image sensor, and a processing device. The light source emits light to at least one object directly and emits light to the at least one object via the reflector at the same time. Then the image sensor receives light reflected from the at least one object directly and light reflected via the reflector simultaneously to form a set of imaging objects which have similar color parameters on an image. Then the processing device produces a set of still image parameters of the image objects such as gravity centers and border boundaries. Based on the still image parameters, the processing device determines the coordinates of the least one object on the optical touch display.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: May 9, 2017
    Assignee: PixArt Imaging Inc.
    Inventors: Chih-Hung Lu, Hsin-Chia Chen, En-Feng Hsu, Chi-Chieh Liao, Ren-Hau Gu, Shu-Sian Yang, Yu-Hao Huang
  • Patent number: 9626909
    Abstract: Disclosed are controllable drive circuits for powering an organic light emitting diode (OLED) or other electronic load. According to one implementation, a circuit structure is provided that applies a pulse width modulated (PWM) drive current to an OLED. The time-average drive current to the OLED can be modulated in accordance with a periodically sampled control signal. In turn, the luminance of the OLED can be suitably varied over a control range. Circuit structures provided may be fabricated at least in part on a common substrate such that respective integrated circuit devices are defined. In one or more implementations, at least a portion of drive circuits may be fabricated within a 65 nanometer (or smaller) environment.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: April 18, 2017
    Assignee: Infineon Technologies AG
    Inventor: Jose Luis Ceballos
  • Patent number: 9606612
    Abstract: Technologies are generally described for employing proximity sensing mechanisms in augmented reality (AR) systems. Sensors strategically placed on AR eyeglasses in locations such as right and/or left arms, bridge, or flip-up feature of the eyeglasses may be used to detect AR eyeglass usage for power management and/or to provide user interface elements like volume control, display controls, user input, and comparable ones. According to some examples, the sensors may be mechanical sensors, capacitive sensors, optical sensors, inductive sensors, magnetic sensors, and/or similar components.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: March 28, 2017
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Peter N. Milford
  • Patent number: 9570029
    Abstract: A gate driver drives a display panel. First and second gate pulse generator circuits each drives a high supply voltage onto respective gate lines via respective high drive transistors during a gate pulse period and discharge their respective gate lines through the respective high drive transistors during a discharge period. A gate pulse modulation circuit provides the high supply voltage to the first gate pulse generator and the second gate pulse generator via an output terminal during the first pulse period and the second pulse period and couples a source terminal of the first high drive transistor and a source terminal of the second high drive transistor to a first return line via the output terminal during the first and second discharge periods.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: February 14, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Hyunchul Kim, Daehwan Kim
  • Patent number: 9489904
    Abstract: A liquid crystal display device includes image signal lines, a plurality of pixel circuits that is connected to the image signal lines, an image signal line driving circuit that is connected to the image signal lines, and sequentially outputs an image signal, a gate line driving circuit that supplies a scanning signal. A period in which the gate line driving circuit supplies a scanning signal to any pixel circuit is a first period in which the image signal is output to the pixel circuit when a polarity of the image signal in a previous frame is different from the polarity in the present frame, and the first period and a second period in which the image signal of a different polarity is supplied before the first period when the polarity in the previous frame is identical with the polarity in the present frame.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: November 8, 2016
    Assignee: Japan Display Inc.
    Inventors: Toshiki Misonou, Tomohide Oohira
  • Patent number: 9349552
    Abstract: Described herein are techniques related to a touchpad with capacitive force sensing. The described techniques may determine the point or region of a user-engagement surface contacted by a user. In addition, the described techniques may also determine a force of the user's finger press on the user-engagement surface using one or more capacitance force-sensors. Furthermore, the described techniques may offer active tactile feedback (i.e., haptics) to the user's finger touching the user-engagement surface. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: May 24, 2016
    Assignee: Synaptics Incorporated
    Inventors: Andrew P. Huska, Douglas M. Krumpelman, Cody G. Peterson