Transparent Substrate Having Light Entrapment Capability (i.e., Waveguides) Patents (Class 345/176)
  • Patent number: 8797271
    Abstract: The aggregation of multiple inputs in a touch-sensitive input device is disclosed. For example, one disclosed embodiment comprises receiving multiple inputs related to a virtual object, aggregating the inputs into an aggregated output, and providing the aggregated output to an application that controls the virtual object.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: August 5, 2014
    Assignee: Microsoft Corporation
    Inventors: Doug Kramer, Kevin Kennedy, Maxim Mazeev, Sundaram Ramani, Robert Levy
  • Patent number: 8797283
    Abstract: A method and apparatus for performing a task at a handheld device. The method includes detecting a first gesture at a handheld device, monitoring for a second gesture in response to detecting the first gesture, detecting the second gesture at the handheld device, determining whether the second gesture corresponds to a task and performing the task when it is determined that the second gesture corresponds to the task.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: August 5, 2014
    Assignee: Sony Computer Entertainment America LLC
    Inventor: Erich Peter Waas
  • Patent number: 8797298
    Abstract: Embodiments of a finger navigation device are described. In one embodiment, the finger navigation device includes a light guide film (LGF), a light source, a sensor, and a navigation engine. At least a portion of the LGF exhibits total internal reflection (TIR) and the light source is in optical communication with the LGF and configured to inject light into the LGF. The sensor is configured to detect light that exits from the LGF after being reflected from a finger that is proximate the LGF and the navigation engine is configured to generate lateral movement information, which is indicative of lateral movement of the finger relative to the sensor, in response to light that is reflected from the finger and detected by the sensor. Other embodiments of the finger navigation device are also described.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: August 5, 2014
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Michael J. Brosnan, Gary R. Trott, Timothy James Orsley
  • Patent number: 8797275
    Abstract: An HPF eliminates an image of an object which is not to be detected from a captured image, thereby obtaining an HPF image. A binarizing unit performs a binarizing process on the HPF image, thereby generating a binary image. A peak detector extracts, using the binary image as a mask, an image of a region corresponding to an opening of the mask from the captured image. From the image, a peak value and the position of a peak pixel are detected. A determining unit determines whether an object to be detected is in contact with the display surface or not on the basis of the relation between the difference and the threshold. Using the detection result and the determination result in the determining unit, a position deriving unit derives the position on the display surface, of the object to be detected which is in contact with the display surface.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: August 5, 2014
    Assignee: Japan Display West Inc.
    Inventors: Ryoichi Tsuzaki, Tsutomu Harada, Kazunori Yamaguchi, Mitsuru Tateuchi
  • Patent number: 8791923
    Abstract: The disclosure describes a touch device including a touching area having a first edge and a second edge; two reflective lens arrays and two laser source modules which are all disposed at the first edge and the second edge respectively, wherein each laser source module includes a laser diode and a diffractive optical element assembled in front of the laser diode for separating a laser beam projected from the laser diode to a plurality of laser beams with equal magnitude, the laser beams are distributed in a parallel arrangement over the touching area by the reflective lens array; and two receiving devices disposed at the corresponding edges of the first edge and the second edge respectively. The receiving device includes a plurality of sensing units, wherein each sensing unit receives one of the laser beams respectively.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: July 29, 2014
    Assignee: TPK Touch Solutions Inc.
    Inventors: Heng-Yao Chang, Sheng-Pin Su
  • Patent number: 8786557
    Abstract: A common electrode 43 for display, which is originally provided in a liquid crystal display element, is also used as one (drive electrode) of a pair of electrodes for a touch sensor, and the other (detection-electrode-for-the-sensor 44) of the pair of electrodes is newly formed. An existing common drive signal Vcom as a drive signal for display is used in common for a drive signal for the touch sensor. A capacitance is formed between the common electrode 43 and the detection-electrode-for-the-sensor 44, and touch detection is performed by utilizing a change of this capacitance caused by a finger touch of a user. Thus, a display device with a touch sensor is also applicable to a mobile device in which electric potential of the user is inconstant in many cases. The newly-provided electrode is only the detection-electrode-for-the-sensor 44, and it is unnecessary to newly prepare a drive signal for the touch sensor. Therefore, the configuration is simple.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: July 22, 2014
    Assignee: Japan Display West Inc.
    Inventors: Koji Noguchi, Daisuke Takama, Yoshitoshi Kida
  • Patent number: 8780057
    Abstract: Provided is an information processing apparatus including an operation display unit for displaying a display screen and detecting an operation location on the display screen based upon a user operation on the display screen, a pressure detecting unit including a plurality of pressure sensors for detecting a pressure value according to the user operation on the operation display unit for each of the plurality of pressure sensors, an operation type determining unit for determining a type of the user operation, a deriving unit for selectively deriving a barycentric location on the display screen based upon detection results from the plurality of pressure sensors, based upon a determination result from the operation type determining unit, and an estimating unit for estimating a pressure value on the operation location, based upon a derivation result from the deriving unit and upon information of barycentric location candidates.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: July 15, 2014
    Assignee: Sony Corporation
    Inventors: Fuminori Homma, Tatsushi Nashida
  • Patent number: 8780066
    Abstract: A touch-sensitive apparatus comprises a panel configured to conduct signals from a plurality of peripheral incoupling points to a plurality of peripheral outcoupling points. Actual detection lines are defined between pairs of incoupling and outcoupling points to extend across a surface portion of the panel. The signals may be in the form of light, and objects touching the surface portion may affect the light via frustrated total internal reflection (FTIR). A signal generator is coupled to the incoupling points to generate the signals, and a signal detector is coupled to the outcoupling points to generate an output signal. A data processor operates on the output signal to enable identification of touching objects. The output signal is processed (40) to generate a set of data samples, which are indicative of detected energy for at least a subset of the actual detection lines.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: July 15, 2014
    Assignee: Flatfrog Laboratories AB
    Inventors: Tomas Christiansson, Peter Juhlin
  • Patent number: 8780076
    Abstract: Disclosed is a mobile terminal and a method for controlling the same. The mobile terminal includes a body having a wireless communication module, a display unit disposed on one surface of the body, displaying one or more icons thereon, and configured to have a touch input thereon, and a controller configured to compensate for a control command corresponding to a touch, based on at least one of a touch duration, a touch point and a change of the touch point, when the touch on the display unit is detected during a change of a position or a shape of the icon.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: July 15, 2014
    Assignee: LG Electronics Inc.
    Inventors: Prasanna Banavara Ramarao, Jonghwan Kim
  • Patent number: 8780083
    Abstract: A plurality of sensors for receiving arrival light detect the change ranges of light amount distributions generated upon the pointing operation of a pointer on a coordinate input region. Coordinate values corresponding to the change ranges are calculated on the basis of the number of change ranges in the respective sensors and the number of pen-down signals obtained from the pointer.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: July 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Tanaka
  • Patent number: 8773400
    Abstract: A touch screen in the form of a panel is capable of conducting signals and a tomograph including signal flow ports is positioned adjacent the panel with the signal flow ports arrayed around the border of the panel at discrete locations. Signals are introduced into the panel to pass from each discrete border location to a plurality of other discrete border locations for being detected and tomographically processed to determine if any change occurred to signals due to the panel being touched during signal passage through the panel, and therefrom determine any local area on the panel where a change occurred. The tomograph computes and outputs a signal indicative of a panel touch and location, which can be shown on a display.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: July 8, 2014
    Inventor: Victor Manuel Suarez Rovere
  • Patent number: 8773399
    Abstract: A touch display device includes a display panel, a touch panel, a plurality of first light sources, a plurality of light sensors and at least one second light source. The display panel has a display surface. The touch panel is disposed above the display panel and includes a transparent part, a plurality of light guide parts configured to protrude from the surface of the transparent part thereby corporately forming a touch region on the surface. The first light sources and first light source is reflected by the light guide parts so as to emit above the touch region and be received by the light sensors. The second light source is configured to emit visible light beams, which is emitted out via the touch panel.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: July 8, 2014
    Assignee: AU Optronics Corp.
    Inventors: Tzu-Ling Niu, Fu-Cheng Fan
  • Publication number: 20140176506
    Abstract: Disclosed herein is a touch sensor, including: a window; a transparent substrate having a first electrode part formed on one surface thereof; and a first adhesive layer allowing the window and one surface of the transparent substrate to adhere to each other, wherein a first protrusion part is formed on an edge of one surface of the transparent substrate.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 26, 2014
    Inventors: Hee Jin PARK, Ji Hyuk Lim, Seung Mi Lee, Suk Jin Ham
  • Patent number: 8754859
    Abstract: An electro-optic display comprises, in order, a light-transmissive electrically-conductive layer; a layer of a solid electro-optic material; and a backplane (162) bearing a plurality of pixel electrodes. A peripheral portion of the backplane extends outwardly beyond the layer of solid electro-optic material and bears a plurality of radiation generators (166) and a plurality of radiation detectors (168), the radiation generators and detectors together being arranged to act as a touch screen.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: June 17, 2014
    Assignee: E Ink Corporation
    Inventors: Holly G. Gates, Robert W. Zehner, Russell J. Wilcox, Matthew J. Aprea
  • Patent number: 8749522
    Abstract: An optical sensor for measuring a force distribution includes a substrate, one or more light emitting sources, and one or more detectors provided on the substrate, with the detectors responsive to the light emitted by the sources. A deformable opto-mechanical layer is also provided on the substrate with light responsive properties depending on a deformation of the opto-mechanical layer. The design of the sensor and particularly the use of optical components in a deformable layer make it possible to measure the contact force accurately, including in some embodiments, the direction of the contact force. The sensor is scalable and adaptable to complex shapes.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: June 10, 2014
    Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno
    Inventors: Andreas Heinrich Dietzel, Harmannus Franciscus Maria Schoo, Marinus Marc Koetse
  • Patent number: 8749523
    Abstract: The present disclosure addresses methods and apparatus facilitating capacitive sensing using a conductive surface, and facilitating the sensing of proximity to the conductive surface. The sensed proximity will often be that of a user, but can be another source of a reference voltage potential. In some examples, the described systems are capable of sensing capacitance (including parasitic capacitance) in a circuit that includes the outer conductive surface, and where that outer conductive surface is at a floating electrical potential. In some systems, the systems can be switched between two operating modes, a first mode in which the system will sense proximity to the conductive surface, and a second mode in which the system will use a capacitance measurement to sense contact with the conductive surface.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: June 10, 2014
    Assignee: Apple Inc.
    Inventors: Aleksandar Pance, Omar S. Leung, David Thomas Amm
  • Patent number: 8749527
    Abstract: An input device includes a transparent display panel configured to display a graphical interface, an input plate disposed above the display panel and composed of a material that transmits the graphical interface and allows infrared light to propagate through the input plate, an infrared-emitting unit disposed in contact with the input plate and configured to emit the infrared light into the input plate via a contact surface of the input plate, and an infrared detection unit disposed below the input plate and configured to detect diffused light of the infrared light which is generated at the input plate when the input plate is touched.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: June 10, 2014
    Assignees: University of Tsukuba, CYBERDYNE Inc.
    Inventors: Damien Douxchamps, Takeshi Fujimori, Yoshiyuki Sankai
  • Patent number: 8749516
    Abstract: A mobile device with a touch panel and a touch-lock operating method thereof are provided. The mobile device preferably includes an RF communication unit for supporting communication services; a touch panel for sensing input touches; a display unit for displaying a screen, where the screen includes at least one of a preset image, text, and map; and a controller for setting a touch-lock in the touch panel according to a preset condition. The controller also controls the display unit to display at least one of a text and image or at least one particular icon corresponding to the information reception event that occurs, based on the RF communication unit, in the touch-lock state. A portion of the display screen can be locked, or only certain predetermined touch functions permitted.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: June 10, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Yeon Kim, Sung Sik Lee, Il Geun Bok, Hyun Kyung Shin
  • Patent number: 8743072
    Abstract: A display device provides a user with tactile feedback using a tactile user interface. The display device includes a display unit, a tactile feedback unit, and a controller. The controller detects a first control input selecting a first object displayed on the display unit, detects a second control input controlling the first object that is consecutive to the first control input, controls the first object in response to the second control input, generates first tactile feedback according to properties of the first object in response to the second control input, detects a third control input controlling the first object that is consecutive to the second control input, the third control input being detected in a region of a second object displayed on the display unit, and maintains the first tactile feedback in response to the third control input while the first object is controlled by the third control input.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: June 3, 2014
    Assignee: LG Electronics Inc.
    Inventor: Jihwan Kim
  • Patent number: 8743050
    Abstract: A handheld device includes a housing and a keypad assembly configured within the housing. The keypad assembly includes one or more groups of keys configured for movable positioning between a first orientation in which a top surface of an individual key is exposed to a user, and a second orientation in which the top surface of the key pivotally retracts into the housing so as to expose an edge surface of the key.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: June 3, 2014
    Assignee: BlackBerry Limited
    Inventors: Norman Miner Ladouceur, Jason Tyler Griffin
  • Patent number: 8743077
    Abstract: The present invention relates to a front light system which can be built with thin film light emitting diodes (LEDs), such as organic light emitting diodes (OLEDs) or electro-luminescent light emitting diodes. The front light system may be built on a thin and flexible substrate and can generate lighting of satisfactory uniformity and with high efficiency. The system also can potentially be inexpensive. The front light system of the present invention is particularly suitable for keymat applications wherein a flexible reflective display on top of a touch sensitive surface or device, is used as an output device.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: June 3, 2014
    Assignee: SiPix Imaging, Inc.
    Inventor: Robert A. Sprague
  • Patent number: 8736581
    Abstract: A touch-screen device includes a radiation source, a waveguide configured to receive radiation emitted by the source and to cause some of the radiation to undergo total internal reflection within the waveguide, a pliable frustrating layer disposed relative to the waveguide to enable the frustrating layer to contact the waveguide when the frustrating layer is physically deformed, the frustrating layer being configured to cause frustration of the total internal reflection of the received radiation within the waveguide when the frustrating layer is physically deformed to contact the waveguide such that some of the received escapes from the waveguide at the contact point, an imaging sensor configured to detect some of the radiation that escapes from the waveguide, and a structure disposed relative to the frustrating layer, the structure configured to steer at least a portion of the radiation that escapes from the waveguide toward the imaging sensor.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: May 27, 2014
    Assignee: Perceptive Pixel Inc.
    Inventors: Jefferson Y. Han, Joel S. Kollin, David Elliott Slobodin
  • Patent number: 8736580
    Abstract: A touchscreen system for locating an opaque object in a target region, detects interruption of light beams. Each of the touchscreens have one or more optical emitters (10) to create the beams, and one or more optical detectors (30) to provide detection signals arranged to use emission wavelengths which are compatible with night vision apparatus, and having an NVIS radiance smaller than 1.7 10?11 NR.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: May 27, 2014
    Assignee: Barco N.V.
    Inventor: Hans Van Genechten
  • Publication number: 20140139493
    Abstract: Methods and apparatus provide for a touch sensitive display, in which a transparent layer is disposed over a display layer; light is directed to propagate into and/or through the transparent layer; scattered light is measured in response to an object touching a surface the transparent layer and disturbing the propagation of the light therethrough; and one or more positions at which the object touches the transparent layer are computed based on signals obtained by the step of measuring the scattered light.
    Type: Application
    Filed: April 4, 2013
    Publication date: May 22, 2014
    Applicant: Corning Incorporated
    Inventors: Jeffrey Stapleton King, Mathieu Charbonneau-Lefort, Timothy James Orsley, William Richard Trutna
  • Patent number: 8730186
    Abstract: A touch sensor (touch panel) which can be formed over the same substrate as a display portion is provided. Alternatively, a touch sensor (touch panel) which does not cause degradation in the quality of an image displayed on a display portion is provided. The touch panel includes a light-emitting element and a microstructure in which a pair of electrodes facing each other is isolated with an insulating material. As the insulating material, an elastic material or a material having a hole is used so that a filler layer formed using the insulating material can be deformed when a movable portion operates. It is preferable to use a material which is softened or hardened by certain treatment (e.g., heat treatment or chemical treatment) after formation.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: May 20, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hikaru Tamura, Munehiro Kozuma
  • Patent number: 8730212
    Abstract: An integrated vision and display system comprises a display-image forming layer configured to transmit a display image for viewing through a display surface; an imaging detector configured to image infrared light of a narrow range of angles relative to the display surface normal and including a reflection from one or more objects on or near the display surface; a vision-system emitter configured to emit the infrared light for illuminating the objects; a visible- and infrared-transmissive light guide having opposing upper and/or lower face, configured to receive the infrared light from the vision-system emitter, to conduct the infrared light via TIR from the upper and lower faces, and to project the infrared light onto the objects outside of the narrow range of angles relative to the display surface normal.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: May 20, 2014
    Assignee: Microsoft Corporation
    Inventors: Karlton Powell, Prafulla Masalkar, Timothy Large, Steven Bathiche
  • Patent number: 8730179
    Abstract: Integrated touch sensor and solar panel stack-up configurations that may be used on portable devices, particularly handheld portable devices such as a media player or phone are disclosed. The solar cell stack-up configurations may include one or more touch sensor layers and one or more solar cell layers. By integrating both the touch sensors and the solar cell layers into the same stack-up, surface area on the portable device may be conserved. The solar panel may be mounted face down or otherwise obstructed by a touch sensor or other component. In this configuration, the device may include light channels that allow light into the device and direct the light around the component and to the solar panel. A parabolic reflector may be used to direct the light.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: May 20, 2014
    Assignee: Apple Inc.
    Inventors: Michael Nathaniel Rosenblatt, Benjamin Lyon, John Benjamin Filson, Steve Porter Hotelling, Gordon Cameron, Cameron Frazier
  • Publication number: 20140132570
    Abstract: A touch panel including a transparent substrate and a first sensing layer is provided. The transparent substrate has a first surface and a second surface opposite to the first surface. The second surface has a light exporting pattern. The first sensing layer is disposed on the first surface. An electronic apparatus with the touch panel is also provided.
    Type: Application
    Filed: November 12, 2012
    Publication date: May 15, 2014
    Applicant: HTC CORPORATION
    Inventors: Ying-Chieh Hu, Chih-Kuang Wang
  • Patent number: 8723841
    Abstract: A touch sensor that may detect an object away from the sensor is provided. The touch sensor includes one or more drive electrodes; one or more detection electrodes forming capacitance in cooperation with the respective drive electrodes; a detection circuit applying drive signals to the respective drive electrodes to detect the object based on detection signals obtained from the respective detection electrodes in response to the respective drive signals; and a controller controlling to change a range of electric flux lines generated between the drive electrodes and the detection electrodes.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: May 13, 2014
    Assignee: Japan Display West, Inc.
    Inventors: Koji Ishizaki, Kouji Noguchi, Tsutomu Harada, Takeya Takeuchi, Yoshitoshi Kida, Takayuki Nakanishi
  • Patent number: 8717310
    Abstract: A stylus comprises a first shell, a second shell, a first slide enabling member. The first shell has a first hole defined therethough. The second shell is slidably accommodated in the first hole of the first shell. The first slide enabling member couples the second shell to the first shell such that the second shell slides relative to the first shell from a retracted configuration to an extending configuration. The first slide enabling member includes a first pin and a first track that engages the first pin, the second shell slides relative to the first shell along the first pin.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: May 6, 2014
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Shi-Xu Liang, Jun-Lin Chen, Chung-Yeh Sa
  • Patent number: 8717300
    Abstract: The present invention achieves a display device capable of quick compensation of charging of parasitic capacitance with a simple configuration and low power consumption. The display device in accordance with the present invention includes (i) pixels, (ii) signal wires (Sj), and (iii) an operational amplifier (OP1) having a non-inverting input terminal connected with a corresponding signal wire (Sj). The operational amplifier (OP1) is configured such that: the non-inverting input terminal is connected with an output terminal (OUT) via a first impedance element (R1); an inverting input terminal is connected with the output terminal (OUT) via a second impedance element (R2); and the inverting input terminal is connected with a reference voltage terminal via a third impedance element (Cn).
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: May 6, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Noritaka Kishi
  • Patent number: 8717320
    Abstract: A method for compensating time difference between images and electronic apparatus using the same method are provided. Input images are received by a plurality of image capturing units respectively. Each input image is checked to see whether a reference area and a reference area background are the same. When the reference area of the input image received from one of the image capturing units is not the same as the reference area background, a compensation image number is accumulated, and other input images are received continually until the reference area of each input image received from the image capturing unit is not the same as the reference area background. Afterwards, time difference between the input images received from a plurality of image capturing units is compensated according to the compensation image numbers.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: May 6, 2014
    Assignee: Wistron Corporation
    Inventor: Yu-Yen Chen
  • Patent number: 8716614
    Abstract: A touch pad is controlled to detect a location of one or more objects (16) on a touch surface (15) of a transmissive element (12). The touch pad includes at least two scanning arrangements (24-26, 28, 29) which are configured as optical scanning transceivers. Each scanning arrangement is adapted to provide a beam of radiation along a pertaining direction (18) in the transmissive element (12), such that the beam propagates inside the transmissive element (12) by total internal reflection. Each scanning arrangement is also adapted to receive radiation from the transmissive element (12) and from the pertaining direction (18), and output corresponding signal. Each scanning arrangement is further adapted to scan the pertaining direction substantially along the touch surface (15).
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: May 6, 2014
    Assignee: Flatfrog Laboratories AB
    Inventor: Ola Wassvik
  • Patent number: 8717337
    Abstract: A touch panel embedded liquid crystal display device is disclosed. A touch panel embedded liquid crystal display device includes a first substrate having a plurality pixels defined in a matrix, a second substrate comprising first, second and third color filters to form a first, second and third color sub-pixels. A second substrate is opposed to the first substrate. A first photo-sensor is provided on the first substrate in a region corresponding to the first color sub-pixel and a second photo-sensor is provided on the first substrate in a region corresponding to the second or third color sub-pixel.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: May 6, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Cheol-Se Kim, Wook Jeon, Jae-Won Shin
  • Patent number: 8717336
    Abstract: A light sensing panel includes sensors arranged in rows and columns, where the sensors receive a first bias voltage and a second bias voltage and output light sensing signals based on light incident thereto; first and second bias lines which transfers the first and second bias voltages, respectively, to the sensors, where each of the first and second bias lines includes a main line and sub lines diverged from the main line and arranged in a second direction corresponding to the columns;, where the sub lines of the first and second bias lines are alternately arranged, and where when two adjacent sub lines are shorted, the shorted sub line of the first bias line is separated from the main line of the first bias line.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: May 6, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki-Hun Jeong, Woongkwon Kim, Kun-Wook Han, Daecheol Kim, Sungryul Kim, Sungjin Mun, Jung suk Bang, Byeonghoon Cho
  • Publication number: 20140118306
    Abstract: Systems, methods, and apparatus for a touch sensitive display device providing editable handwriting capture are described. A display device with a detachable front panel is capable of interactive touch sensing and editable handwriting capture. An ultraviolet or near ultraviolet light source and camera can be configured to capture images of textual input made on the detachable front panel of the device with a pen having water soluble fluorescent ink that is transparent or nontransparent such that the notes are visible under ultraviolet or near ultraviolet light and transparent when little or no ultraviolet or near ultraviolet light is present. The detachable front panel may be removed from the display device for cleaning and ease of use.
    Type: Application
    Filed: February 27, 2013
    Publication date: May 1, 2014
    Inventors: Daniel Moses, Robert Mitchell Kleiman, Candice Ruth Mudrick, Milivoje Aleksic
  • Patent number: 8711110
    Abstract: A system and a method are disclosed for detecting an interaction, such as physical contact, with a touch-sensitive screen. The screen comprises a plurality of cells each associated with a signal value, such as a capacitance, that is modified based on the proximity of an object to the screen. During a first time interval, a first signal value associated with a cell is captured and during a second time interval a second signal value associated with the cell is captured. A difference is computed by subtracting the second signal value from the first signal value. The difference is used to classify the proximity of the object to the screen. For example, the object is classified as approaching the screen if the difference is positive and non-zero or the object is classified as moving away from the screen if the difference is negative and non-zero.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: April 29, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Lawrence Scott Barras, Kenneth James Albanowski, Thomas David Hughes
  • Patent number: 8704801
    Abstract: A touch display apparatus including a light guide plate, a light emitting module, a display panel, a plurality of prism structures, an image transmission unit, and an image detector is provided. The light guide plate has a first surface, a second surface opposite to the first surface, and a light incident surface connecting the first surface and the second surface. The light emitting module includes at least one visible light source and at least one invisible light source. The prism structures are disposed between the first surface and the display panel. The image transmission unit includes a wedge portion and a light guide portion. The wedge portion is disposed between the prism structures and the display panel. The image detector is disposed beside the light guide portion for receiving the invisible light beam from the light guide portion. A backlight module is also provided.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: April 22, 2014
    Assignee: Coretronic Corporation
    Inventors: Han-Wen Tsai, Fu-Ming Chuang
  • Patent number: 8704930
    Abstract: This image display apparatus includes a display unit that displays at least an image, an operation input unit that is divided into a plurality of areas, predetermined operations being assigned to the respective areas, and a control unit that displays an operation manual screen on the display unit for a predetermined time when a full-screen display process starts, that presents content of the operations assigned to the respective areas of the operation input unit by the screen, and that performs control to perform, when one of the areas is pressed, the operation assigned to the area.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: April 22, 2014
    Assignee: Sony Corporation
    Inventors: Yasufumi Suzuki, Hisayuki Nakashima, Toru Furuwaka
  • Patent number: 8698781
    Abstract: An optical touch device includes a transparent substrate and at least a light emitting and receiving unit. The transparent substrate has a touch surface, a first light incidence surface and a first light emitting surface. Each light emitting and receiving unit includes a linear light source, a light path adjusting component and a light sensing component. The linear light source is disposed beside the first light incidence surface. The light path adjusting component is disposed between the linear light source and the first light incidence surface and configured for adjusting the incidence angles of the optical signals striking at the first incidence surface so that each of the optical signals enters into the transparent substrate through the first incidence surface with a predetermined angle. The light sensing component is disposed beside the first light emitting surface. The optical touch device has a high light utility efficiency.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: April 15, 2014
    Assignee: Pixart Imaging Inc.
    Inventors: Hui-Hsuan Chen, Wu-Chieh Liu, Hung-Ching Lai, Chiang-Yuan Chuang
  • Publication number: 20140078111
    Abstract: Disclosed herein is a touch panel. The touch panel 100 according to a preferred embodiment of the present invention is configured to include a transparent substrate 105 that is partitioned into an active region A and a bezel region B disposed at an edge of the active region A, an electrode pattern 110 formed in the active region A, an electrode wiring 120 formed in the bezel region B so as to be connected with the electrode pattern 110, and a display 130 outputting specific light to the bezel region B.
    Type: Application
    Filed: December 11, 2012
    Publication date: March 20, 2014
    Inventors: Wan Jae Lee, Seung Min Lee, Youn Soo Kim, Ho Joon Park
  • Patent number: 8674709
    Abstract: A circuit for measuring a capacitance value of a touch screen includes: a target capacitor unit having a target capacitor charged with a target charging voltage; a target voltage control unit to charge the target capacitor; a reference capacitor unit having a reference capacitor charged with a charging reference voltage; a reference voltage control unit to charge the reference capacitor; a comparator to compare the target charging voltage and the charging reference voltage and output a transition signal at a moment when the target charging voltage becomes higher than the charging reference voltage; and a controller to receive an output signal of the comparator and a clock signal and generate a digital output signal and a control signal, wherein a capacitance value of the target capacitor is measured using a time elapsed from a time when the target capacitor is initialized to a time when the transition signal is outputted.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: March 18, 2014
    Assignee: Silicon Works Co., Ltd.
    Inventors: Ji Hun Kim, Hyun Min Song, Joon Ho Na, Ki Uk Gwak, Sang Gug Lee
  • Patent number: 8669951
    Abstract: An optical touch panel includes a substrate, a single planar light generator, at least a retro reflector device, and a single photo sensor array. The substrate has a surface. The single planar light generator is disposed outside the surface of the substrate for generating a planar light, where the illuminating range of the planar light covers the range of the surface of the substrate. The retro reflector device is disposed on a side of the substrate for reflecting the planar light. The single photo sensor array is disposed outside the surface of the substrate for sensing the reflected planar light and generating reflected light distribution information.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: March 11, 2014
    Assignee: AU Optronics Corp.
    Inventors: Hsing-Jung Chuang, Fu-Cheng Fan, Jia-Wei Hu
  • Patent number: 8665075
    Abstract: A method and system for configuring a universal remote control (URC) to control a remote-controlled device includes establishing a communication link between the URC and the remote-controlled device in response to detecting a gesture motion of the URC. Device information may be received from the remote-controlled device and used by the URC to program the URC to control the remote-controlled device. The URC may be configured to control a plurality of remote-controlled devices. The communication link may be a near field wireless communication link.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: March 4, 2014
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: James Pratt, Marc Sullivan
  • Patent number: 8665232
    Abstract: A device configured to acquire tactile information including a transparent tactile matrix sensor having rows and columns of conductive stripes; and a scanning control unit, wherein the scanning control unit is configured to sequentially read out tactile information from the rows and the columns of the conductive stripes of the transparent tactile matrix sensor.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: March 4, 2014
    Assignee: STANTUM
    Inventors: Pascal Joguet, Guillaume Largillier
  • Patent number: 8664965
    Abstract: Device (2) for measuring electric parameters of a fluid (F), comprising: two measurement circuits (8, 10) for measuring, respectively, the dielectric permittivity and the electrical conductivity of the fluid (F); two electrodes (5, 5?) facing each other from opposite sides of the fluid (F); a selector system (11) for alternatively connecting the two measurement circuits (8, 10) to the electrodes (5, 5?). Each electrode (5, 5?) comprises two sectors (5a, 5b) suited to establish mutually separate electrical contact with the fluid (F) and the electrical conductivity measurement circuit (10) comprises two measurement sections (V, A) of different impedance, each one of which being connectable to a corresponding sector (5a, 5b) of each electrode (5, 5?).
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: March 4, 2014
    Assignee: Pietro Fiorentini SpA
    Inventors: Paolo Calciolari, Stefano Bernardi
  • Patent number: 8666456
    Abstract: A handheld electronic apparatus including a casing, a cover, a motherboard, an in-cell touch display module, a light guide member, and a touch module is provided. The cover covers a casing opening, and constitutes an accommodation space with the casing. The cover has a first area and a second area having a light transmissive icon. The motherboard is electrically connected with the in-cell touch display module and the touch module. The in-cell touch display module has a display area disposed beneath the first area. The light guide member is disposed within the accommodation space, and capable of guiding a light generated from a light emitting element to the light transmissive icon. The light guide member has a sheet-shaped portion disposed beneath the second area by corresponding to the light transmissive icon. The touch module is disposed within the accommodation space and beneath the second area.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: March 4, 2014
    Assignee: HTC Corporation
    Inventors: Cheng-Hsi Liu, Pi-Lin Lo, Jih-Jonq Shiue, Chung-Ju Wu
  • Patent number: 8659548
    Abstract: Enhanced camera-based input, in which a detection region surrounding a user is defined in an image of the user within a scene, and a position of an object (such as a hand) within the detection region is detected. Additionally, a control (such as a key of a virtual keyboard) in a user interface is interacted with based on the detected position of the object.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: February 25, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Evan Hildreth
  • Publication number: 20140049518
    Abstract: An apparatus for detecting a touch event using a first touch interface and a second touch interface includes one or more touch-sensitive sensors, a first touch interface, and a second touch interface. The first touch interface includes an optical touch interface. The second touch interface is of a different type than the first touch interface. The apparatus also includes a storage device storing machine-readable code and a processor executing the machine-readable code. The machine-readable code includes a first interface module determining a touch position on the one or more touch-sensitive sensors using the first touch interface. The machine-readable code further includes a second interface module detecting a touch contact on the one or more touch-sensitive sensors using the second touch interface.
    Type: Application
    Filed: August 14, 2012
    Publication date: February 20, 2014
    Inventors: John Miles Hunt, John Weldon Nicholson
  • Patent number: RE44866
    Abstract: A touch screen panel provided in an image display device. The touch screen panel includes: a transparent substrate; a plurality of first sensing patterns on the transparent substrate and coupled to each other along a first direction; a first insulating film on the first sensing patterns; a plurality of second sensing patterns on the first insulating film and coupled to each other along a second direction, the first and second sensing patterns being alternately arranged not to overlap with each other; and a second insulating film on the second sensing patterns, wherein the first insulating film and the second insulating film are composed of materials having different optical refractive indexes.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: April 29, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Ku Kang, Tae-Hyeog Jung, Choon-Hyop Lee, Dong-Wook Kang