Patents Examined by Joseph Fox
  • Patent number: 10192491
    Abstract: A data driver capable of displaying images with a substantially uniform brightness, an organic light emitting display device using the same, and a method of driving the organic light emitting display device. The data driver includes a plurality of current sink units for controlling predetermined currents to flow through data lines, a plurality of voltage generators for resetting values of gray scale voltages using compensation voltages generated when the predetermined currents flow, a plurality of digital-to-analog converters for selecting one gray scale voltage among the gray scale voltages as a data signal in response to bit values of the data supplied from the outside, and a plurality of switching units for supplying the data signal to the data lines. The predetermined currents may be set equal to pixel currents that correspond to a maximum brightness.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: January 29, 2019
    Assignees: Samsung Display Co., Ltd., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Do Hyung Ryu, Bo Yong Chung, Hong Kwon Kim, Oh Kyong Kwon
  • Patent number: 10180736
    Abstract: A processing system includes a sensor module and a determination module. The sensor module is coupled to sensor electrodes and is the sensor module configured to drive the sensor electrodes with sensing signals at a first resonance frequency of the pen. The determination module is configured to obtain, concurrently with the driving of the sensor electrodes, a measurements that are based on effects of the sensing signals, and a resonance of the pen in a sensing region. The determination module is further configured to determine positional information of the pen in the sensing region based on the measurements, and report the positional information.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: January 15, 2019
    Assignee: Synaptics Incorporated
    Inventors: Doug Krumpelman, Tom Vandermeijden, Kirk Hargreaves
  • Patent number: 10180569
    Abstract: A display device for displaying a virtual image within the visual field of a driver, said display device including an image generation device, and at least one light sensor, said image generation device being configured for producing with said light sensor a measurement of the ambient light intensity within an area, referred to as ambient background, located in the direction where said image is formed in order to allow the brightness of said image to be adapted to said ambient background. An image generation device for such a display device, said device comprising said sensor are also disclosed.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: January 15, 2019
    Assignee: Valeo Etudes Electroniques
    Inventor: Stéphane Dalmayrac
  • Patent number: 10175826
    Abstract: A touch device and a display device including the same are provided. The touch device includes: a first substrate; a second substrate facing the first substrate, and disposed to be spaced apart from the first substrate by a predetermined interval; a third substrate connecting first end portions of the first and second substrates to each other, and propagating an ultrasonic signal propagated along the first substrate to the second substrate; a plurality of first ultrasonic transducers connected to second portions facing the first end portions in the first substrate, and propagating an ultrasonic signal to the first substrate; and a plurality of second ultrasonic transducers connected to the second portions facing the first end portions in the second substrate, and receiving an ultrasonic signal propagated along the second substrate, wherein a touch point may be detected based on signal intensity variations of ultrasonic signals received by the second ultrasonic transducers.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: January 8, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won-Ki Hong, Jong Seo Lee
  • Patent number: 10139922
    Abstract: Disclosed are systems and methods associated with a touch-sensitive input device including a plurality of keys, wherein each key of the plurality of keys includes at least one spring. Such a spring may include a substantially planar peak located at a central portion of the spring, a first substantially arcuate leg extending from the peak in a first direction, and a second substantially arcuate leg extending from the peak in a second direction substantially perpendicular to the first direction. In one embodiment, a resistive force provided by the at least one spring decreases after the peak travels a first distance from an initial position of the peak. In such an embodiment, the first distance is less than or equal to approximately ? of a range of travel of the peak.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: November 27, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventor: Feng-Hsiung Hsu
  • Patent number: 10134331
    Abstract: A display device includes: a pixel array unit with pixel circuits disposed in matrix form, the pixel circuit including a driving transistor, an electro-optic element, a storage capacitor, and a sampling transistor, with the electro-optic element emitting light by generating a driving current based on information stored in the storage capacitor at the driving transistor to be applied to the electro-optic element; and a control unit, of which the output stage includes a buffer transistor, to output a pulse signal for driving the pixel array unit from the buffer transistor; wherein the pixel array unit and the control unit are formed with long laser beam irradiation to be scanned in the vertical direction or horizontal direction; and wherein with the control unit, the size of the buffer transistor is equal to or greater than the pixel pitch in the scanning direction of the laser beam.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: November 20, 2018
    Assignee: Sony Corporation
    Inventors: Junichi Yamashita, Katsuhide Uchino
  • Patent number: 10120477
    Abstract: A touch input device includes a touch panel, a push amount calculating unit and a touch detection signal generating unit. The touch panel includes piezoelectric and electrostatic sensors. The piezoelectric sensor outputs to the push amount calculating unit a push signal corresponding to a displacement amount obtained by pushing an operation surface. The electrostatic sensor outputs touch signals, corresponding to a touch and a non-touch, to a touch detection signal generating unit. The touch detection signal generating unit outputs to the push amount calculating unit the touch detection signals binarized according to the touch and non-touch state. The push amount calculating unit integrates differences between push signals and a reference potential during a touch state, generates a push amount detection signal and outputs the push amount detection signal. This unit resets a reference potential during a period in which a touch detection signal indicating a non-touch state is inputted.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: November 6, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroaki Kitada, Toru Ishii
  • Patent number: 10088922
    Abstract: A resonating pen having multiple resonance frequencies includes a first circuit segment including an inductor for the resonance frequencies, a second circuit segment including transistors, where each of the transistors includes a transistor state, and a third circuit segment includes a controller. The controller is configured to alter the transistor state of the transistors to change the resonating pen to a resonance frequency. The resonating pen further includes a switch configured to control the controller.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: October 2, 2018
    Assignee: Synaptics Incorporated
    Inventor: Tom R. Vandermeijden
  • Patent number: 10082889
    Abstract: In one embodiment, a device includes a stylus tip capable of communicating wirelessly with another device through a touch sensor of the other device. The stylus tip includes one or more surface areas, one or more substrates disposed along one or more of the surface areas of the stylus tip, and a plurality of electrodes disposed on or in the one or more substrates.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: September 25, 2018
    Assignee: Atmel Corporation
    Inventors: Kishore Sundara-Rajan, Shahrooz Shahparnia
  • Patent number: 10019121
    Abstract: Provided is a display device including: a display unit including a pixel and a non-pixel area; an encapsulation unit configured to seal the display unit; a touch sensing electrode at the non-pixel area on the encapsulation unit and provided with a plurality of first openings; and a reflection reducing unit at the pixel and the non-pixel area on the encapsulation unit and configured as a multilayer of a metal layer and a dielectric layer. The metal layer includes a non-pixel portion overlapping the touch sensing electrode and provided with a plurality of second openings.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: July 10, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chung Sock Choi, Sang Hwan Cho
  • Patent number: 10009602
    Abstract: A head-mounted display device includes: an image-light generating unit for right eye that generates image light from image data for right eye and emits the image light; an image-light generating unit for left eye that generates image light from image data for left eye and the image light; a light guide units that guide the emitted image lights to the left and right eyes of the user; and a display control unit that transmits control signals for controlling the emission of the image lights respectively to the image-light generating unit for right eye and the image-light generating unit for left eye. The display control unit transitions, according to a condition set in advance, the head-mounted display device to a power saving state for causing one of the image-light generating unit for right eye and the image-light generating unit for left eye to stop the emission of the image light.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: June 26, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Fusashi Kimura, Shinichi Kobayashi
  • Patent number: 9965081
    Abstract: A device for sensing a touch by measuring a variation in capacitance according to a contact of an object, and measuring a contact position of the object is provided. The device includes a touch screen panel comprising grid electrodes forming a plurality of electrode patterns, the grid electrodes serving as Tx antennas or Rx antennas, a Tx circuit unit connected with the grid electrode to apply an electric signal to the touch screen panel unit, an Rx circuit unit connected with the grid electrodes to sense variations in the capacitance in the plurality of electrode patterns, and a controller configured to control the touch screen panel unit, the Tx circuit unit, and the Rx circuit unit. The Rx circuit unit includes a first operational amplifier, a first feedback capacitor, and a second feedback capacitor. The first feedback capacitor and the second feedback capacitor are connected with the first operational amplifier.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: May 8, 2018
    Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and Technology
    Inventors: Sung-Soo Park, Chang-Byung Park, Gyu-Hyeong Cho
  • Patent number: 9946391
    Abstract: A processing system includes a sensor module coupled to sensor electrodes. The sensor module is configured to drive the sensor electrodes with first sensing signals and with second sensing signals at a second frequency. The processing system further includes a determination module configured to obtain, concurrently with the driving of the sensor electrodes, first measurement values that are based on effects of the first sensing signals, and a resonance of a pen in a sensing region. Concurrently with the driving of the sensor electrodes, second measurement values are obtained that are based on effects of the second sensing signals, and the resonance of the pen in the sensing region. The determination module determines a resonating state of the pen based on the first measurement values and the second measurement values, and reports the resonating state of the pen.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: April 17, 2018
    Assignee: Synaptics Incorporated
    Inventor: Tom R. Vandermeijden
  • Patent number: 9934715
    Abstract: Disclosed is a timing controller including: a receiving unit configured to receive image data; a buffer memory configured to temporarily store and output the received image data; a timing controller circuit configured to generate a transmission clock signal; and a transmitter configured to receive the transmission clock signal and a transmission data signal, wherein the transmission data signal includes the image data output by the buffer memory, wherein the transmitter is configured to transmit a transmission signal, wherein the transmission clock signal is embedded in the transmission data signal, and wherein the transmission clock signal has a magnitude different from the transmission data signal.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: April 3, 2018
    Assignee: ANAPASS INC.
    Inventor: Yong-Jae Lee
  • Patent number: 9934712
    Abstract: The present invention relates to a display, a timing controller and a column driver IC, and more particularly to a display, timing controller and column driver integrated circuit using clock embedded multi-level signaling. The present invention provides a timing controller including a transmitter for transmitting a transmission signal wherein a transmission clock signal is embedded therein between a transmission data signal to have a signal magnitude different from that of the transmission data signal. The present invention also provides a column driver integrated circuit including a receiving unit for separating a clock signal from a received signal using a magnitude of the received signal, and for performing a sampling of a received data signal from the received signal using the separated clock signal.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: April 3, 2018
    Assignee: ANAPASS INC.
    Inventor: Yong-Jae Lee
  • Patent number: 9933891
    Abstract: A sensing surface device comprises a sensing module coupled to a sensing mat. The sensing module is configured to detect a first object at a first position on the sensing mat, detect an event associated with the first object and detect a movement at a second position on the sensing mat. The sensing module is further configured to generate an input to trigger an action in software based on both the detected event and the detected movement.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: April 3, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Greg Saul, Nicolas Villar, Daniel Cletheroe, Haiyan Zhang, Christian Holz
  • Patent number: 9933681
    Abstract: A driver for an electrochromic element is configured to adjust the transmittance of a solution-type electrochromic element to allow the element to display a tone. The element has a pair of electrodes and at least one organic electrochromic material mixed between the electrodes. The driver has an adjusting controller configured to adjust the transmittance of the element. The adjusting controller has controller A and controller B. Controller A is configured to saturate a change in the transmittance of the element to an initial state by applying the voltage which resets the element to the initial state. Controller B is configured to control the tone of the element by applying the voltage which adjusts the transmittance of the element following controller A.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: April 3, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Yamamoto, Shinjiro Okada
  • Patent number: 9858875
    Abstract: A liquid crystal device includes a first and second substrate, a sealant, a liquid crystal layer, and a first and second electrode. The first substrate includes a display region in which a plurality of pixel electrodes are aligned in a matrix. The second substrate includes a common electrode. The sealant is disposed between the first and second substrate so as to surround the display region. The liquid crystal layer is interposed between the first substrate, the second substrate and the sealant. The first electrode is disposed between the display region and the sealant. The second electrode is disposed between the display region and the first pixel electrode. The first electrode is supplied a first signal. The second electrode is supplied a second signal. The pixel electrodes are supplied an image signal. A frequency of each of the first and second signals are lower than a frequency of the image signal.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: January 2, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Naoki Tomikawa
  • Patent number: 9852688
    Abstract: A pixel including an organic light-emitting diode, a capacitor, a first transistor including a gate electrode connected to a second node, a first electrode connected to a first source voltage line, and a second electrode configured to output a current corresponding to a voltage applied to the second node, a second transistor including a gate electrode connected to a first scan line, an electrode connected to a data line, a third transistor including a gate electrode connected to the first scan line, a first electrode connected to the first transistor, and a second electrode connected to the first transistor, a fourth transistor including a gate electrode connected to a second scan line, a first electrode connected to the first transistor, and a second electrode connected to an initialization voltage line, and a fifth transistor including a gate electrode and an electrode connected to an emission control line.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: December 26, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Changho Lee, Keumnam Kim
  • Patent number: 9841850
    Abstract: Methods, systems and devices are described for operating an electronic system which includes a pliable component having an input surface, a first array of sensor electrodes, a second array of sensor electrodes, and a third array of sensor electrodes. The input device also includes a conductive substrate spaced apart from the pliable component and a compliant component disposed between the pliable component and the conductive substrate. In response to pressure applied by an input object to the input surface, the pliable component and the first, second, and third arrays of sensor electrodes locally deform and the compliant component locally compresses such that a spacing between the conductive substrate and at least one electrode from each of the first, second, and third arrays decreases.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: December 12, 2017
    Assignee: Synaptics Incorporated
    Inventors: Richard R. Schediwy, Pascale El Kallassi