Transparent Substrate Having Light Entrapment Capability (i.e., Waveguides) Patents (Class 345/176)
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Patent number: 8743050Abstract: 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: GrantFiled: August 3, 2011Date of Patent: June 3, 2014Assignee: BlackBerry LimitedInventors: Norman Miner Ladouceur, Jason Tyler Griffin
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Patent number: 8736580Abstract: 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: GrantFiled: July 13, 2007Date of Patent: May 27, 2014Assignee: Barco N.V.Inventor: Hans Van Genechten
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Patent number: 8736581Abstract: 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: GrantFiled: April 9, 2010Date of Patent: May 27, 2014Assignee: Perceptive Pixel Inc.Inventors: Jefferson Y. Han, Joel S. Kollin, David Elliott Slobodin
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Publication number: 20140139493Abstract: 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: ApplicationFiled: April 4, 2013Publication date: May 22, 2014Applicant: Corning IncorporatedInventors: Jeffrey Stapleton King, Mathieu Charbonneau-Lefort, Timothy James Orsley, William Richard Trutna
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Patent number: 8730212Abstract: 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: GrantFiled: November 19, 2009Date of Patent: May 20, 2014Assignee: Microsoft CorporationInventors: Karlton Powell, Prafulla Masalkar, Timothy Large, Steven Bathiche
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Patent number: 8730186Abstract: 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: GrantFiled: May 27, 2010Date of Patent: May 20, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hikaru Tamura, Munehiro Kozuma
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Patent number: 8730179Abstract: 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: GrantFiled: September 30, 2008Date of Patent: May 20, 2014Assignee: Apple Inc.Inventors: Michael Nathaniel Rosenblatt, Benjamin Lyon, John Benjamin Filson, Steve Porter Hotelling, Gordon Cameron, Cameron Frazier
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Publication number: 20140132570Abstract: 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: ApplicationFiled: November 12, 2012Publication date: May 15, 2014Applicant: HTC CORPORATIONInventors: Ying-Chieh Hu, Chih-Kuang Wang
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Patent number: 8723841Abstract: 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: GrantFiled: June 8, 2010Date of Patent: May 13, 2014Assignee: Japan Display West, Inc.Inventors: Koji Ishizaki, Kouji Noguchi, Tsutomu Harada, Takeya Takeuchi, Yoshitoshi Kida, Takayuki Nakanishi
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Patent number: 8717336Abstract: 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: GrantFiled: January 10, 2012Date of Patent: May 6, 2014Assignee: Samsung Display Co., Ltd.Inventors: Ki-Hun Jeong, Woongkwon Kim, Kun-Wook Han, Daecheol Kim, Sungryul Kim, Sungjin Mun, Jung suk Bang, Byeonghoon Cho
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Patent number: 8717337Abstract: 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: GrantFiled: December 24, 2009Date of Patent: May 6, 2014Assignee: LG Display Co., Ltd.Inventors: Cheol-Se Kim, Wook Jeon, Jae-Won Shin
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Patent number: 8717310Abstract: 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: GrantFiled: June 14, 2010Date of Patent: May 6, 2014Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) LimitedInventors: Shi-Xu Liang, Jun-Lin Chen, Chung-Yeh Sa
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Patent number: 8716614Abstract: 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: GrantFiled: October 10, 2008Date of Patent: May 6, 2014Assignee: Flatfrog Laboratories ABInventor: Ola Wassvik
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Patent number: 8717300Abstract: 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: GrantFiled: March 2, 2010Date of Patent: May 6, 2014Assignee: Sharp Kabushiki KaishaInventor: Noritaka Kishi
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Patent number: 8717320Abstract: 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: GrantFiled: November 17, 2011Date of Patent: May 6, 2014Assignee: Wistron CorporationInventor: Yu-Yen Chen
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Publication number: 20140118306Abstract: 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: ApplicationFiled: February 27, 2013Publication date: May 1, 2014Applicant: QUALCOMM INCORPORATEDInventors: Daniel Moses, Robert Mitchell Kleiman, Candice Ruth Mudrick, Milivoje Aleksic
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Patent number: 8711110Abstract: 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: GrantFiled: September 8, 2010Date of Patent: April 29, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Lawrence Scott Barras, Kenneth James Albanowski, Thomas David Hughes
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Patent number: 8704801Abstract: 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: GrantFiled: September 15, 2010Date of Patent: April 22, 2014Assignee: Coretronic CorporationInventors: Han-Wen Tsai, Fu-Ming Chuang
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Patent number: 8704930Abstract: 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: GrantFiled: April 24, 2013Date of Patent: April 22, 2014Assignee: Sony CorporationInventors: Yasufumi Suzuki, Hisayuki Nakashima, Toru Furuwaka
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Patent number: 8698781Abstract: 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: GrantFiled: October 29, 2010Date of Patent: April 15, 2014Assignee: Pixart Imaging Inc.Inventors: Hui-Hsuan Chen, Wu-Chieh Liu, Hung-Ching Lai, Chiang-Yuan Chuang
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Publication number: 20140078111Abstract: 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: ApplicationFiled: December 11, 2012Publication date: March 20, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Wan Jae Lee, Seung Min Lee, Youn Soo Kim, Ho Joon Park
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Patent number: 8674709Abstract: 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: GrantFiled: May 12, 2011Date of Patent: March 18, 2014Assignee: Silicon Works Co., Ltd.Inventors: Ji Hun Kim, Hyun Min Song, Joon Ho Na, Ki Uk Gwak, Sang Gug Lee
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Patent number: 8669951Abstract: 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: GrantFiled: February 21, 2011Date of Patent: March 11, 2014Assignee: AU Optronics Corp.Inventors: Hsing-Jung Chuang, Fu-Cheng Fan, Jia-Wei Hu
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Patent number: 8664965Abstract: 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: GrantFiled: July 20, 2010Date of Patent: March 4, 2014Assignee: Pietro Fiorentini SpAInventors: Paolo Calciolari, Stefano Bernardi
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Patent number: 8665232Abstract: 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: GrantFiled: January 26, 2011Date of Patent: March 4, 2014Assignee: STANTUMInventors: Pascal Joguet, Guillaume Largillier
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Patent number: 8665075Abstract: 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: GrantFiled: October 26, 2009Date of Patent: March 4, 2014Assignee: AT&T Intellectual Property I, L.P.Inventors: James Pratt, Marc Sullivan
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Patent number: 8666456Abstract: 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: GrantFiled: August 15, 2012Date of Patent: March 4, 2014Assignee: HTC CorporationInventors: Cheng-Hsi Liu, Pi-Lin Lo, Jih-Jonq Shiue, Chung-Ju Wu
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Patent number: 8659548Abstract: 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: GrantFiled: May 21, 2008Date of Patent: February 25, 2014Assignee: QUALCOMM IncorporatedInventor: Evan Hildreth
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Publication number: 20140049518Abstract: 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: ApplicationFiled: August 14, 2012Publication date: February 20, 2014Applicant: LENOVO (SINGAPORE) PTE, LTD.Inventors: John Miles Hunt, John Weldon Nicholson
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Patent number: 8648819Abstract: A capacitive two-dimensional (2D) touch panel has three sets of interleaved electrodes. A first set of electrodes is spaced apart along the y-direction and these are galvanically connected to each other by a resistive strip connected at either end to a connection line. A second set of electrodes is also arrayed along the y-direction and these are galvanically connected to each other via a notionally non-resistive first connection. A third set of electrodes is also arrayed along the y-direction and these are galvanically connected to each other via a notionally non-resistive second connection. The second and third sets of electrodes are interleaved without galvanic cross-conduction to provide a gradient along the x-direction to resolve touch position in the x-direction. The first set of electrodes resolves touch position along the y-direction. Passive or active capacitive sensing techniques may be used to acquire the position information from the 2D touch panel.Type: GrantFiled: July 2, 2010Date of Patent: February 11, 2014Assignee: Atmel CorporationInventor: Harald Philipp
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Patent number: 8643625Abstract: Technologies described herein generally relate to communications between electronic systems. Each electronic system includes a touch-panel device that may be positioned in proximity to one another such that the near field emissions of the touch-panel devices interact with one another. The touch-panel devices can be adapted to sense one another based on these near field emissions. Once detected, the touch-panel devices can be configured to establish a communication channel to communicate information between one another via modulated near field emissions. Such exchanged information may include identification information, network addresses, security keys, and so forth. The exchanged information may be used for discovery or pairing between the touch-panel devices. The technology presented herein can support an intuitive user experience and improved security over traditional wireless pairing approaches.Type: GrantFiled: June 10, 2010Date of Patent: February 4, 2014Assignee: Empire Technology Development LLCInventor: Ezekiel Kruglick
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Patent number: 8643629Abstract: A color filter includes a transparent substrate, a conductive layer, a color filtering layer, and a protection layer. The conductive layer is formed on the transparent substrate for sensing touch signals, and the periphery of the conductive layer is provided with peripheral electrodes. The color filtering layer is formed on the conductive layer and includes multiple red light filtering sections, multiple green light filtering sections, and multiple blue light filtering sections, and a pixel of a liquid crystal display device includes at least one red light filtering section, at least one green light filtering section and at least one blue light filtering section. The protection layer is formed on the color filtering layer.Type: GrantFiled: February 27, 2009Date of Patent: February 4, 2014Assignee: Wintek CorporationInventor: Chien-Chung Kuo
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Patent number: 8644757Abstract: Methods and systems for coordinating user terminals are disclosed. A user terminal may receive a user terminal identifier and a sensor identifier from a user terminal, determine a group topology based on the user terminal identifier and the sensor identifier to identify a spatial relationship relative to the user terminal, receive a media signal, and identify a subsection of the media signal. The user terminal also may generate subsection information to assign a subsection of the media signal to the user terminal corresponding to the spatial relationship, and may communicate the subsection information to the user terminal.Type: GrantFiled: December 4, 2008Date of Patent: February 4, 2014Assignee: Nokia CorporationInventors: Igor Danilo Curcio, Sujeet Mate, Ye-Kui Wang, Jörg Ott, Jegadish Devadoss, Varun Singh, Juha Tapani Purho
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Patent number: 8643614Abstract: A touch-sensitive device includes a transparent substrate, a touch-sensing structure, a decorative layer, a trace layer, a passivation layer and a sheltering layer. The touch-sensing structure is disposed on the transparent substrate and located in a touch-sensitive region. The decorative layer is disposed on the transparent substrate and located in a non-touch-sensitive region, and the trace layer is disposed on the decorative layer. The passivation layer is disposed on the transparent substrate and at least covers the touch-sensing structure and the trace layer. The sheltering layer is disposed at least on the passivation layer and located in the non-touch-sensitive region.Type: GrantFiled: June 3, 2011Date of Patent: February 4, 2014Assignee: Wintek CorporationInventors: Ming-Kung Wu, Kuo-Chang Su, Chia-Chi Chen, Yu-Ting Lin
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Patent number: 8642895Abstract: A substrate with a transparent conductive layer includes a transparent supporting substrate, a thermosetting resin layer containing 50% by weight or more of a melamine resin, and a carbon nanotube conductive layer in this order, wherein a value of linearity of resistance of the carbon nanotube conductive layer is 1.5% or less.Type: GrantFiled: February 27, 2009Date of Patent: February 4, 2014Assignee: Toray Industries, Inc.Inventors: Junji Mata, Jun Tsukamoto, Hiroki Sekiguchi
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Patent number: 8633918Abstract: A light waveguide has a rectangular plate shape and is configured to totally reflect internal light arriving at an angle greater than a critical angle. Light emitting parts are disposed at corners of the light waveguide. Each of the light emitting parts emits light once in a period. A first light receiving part is disposed along a first side surface of the light waveguide, and receives light emitted from the light emitting parts adjacent to a second side surface facing the first side surface of the light waveguide. The second light receiving part is disposed along the second side surface of the light waveguide, and receives light emitted from the light emitting parts adjacent to the first side surface. A detecting part detects a touch position based on an amount of the light received by the first and second light receiving parts.Type: GrantFiled: December 17, 2010Date of Patent: January 21, 2014Assignee: Samsung Display Co., LtdInventors: Jin-Hwan Kim, Hyun-Min Cho, Guk-Hyun Kim, Jong-Hee Kim, Hyun-Jin Cho
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Patent number: 8629857Abstract: Light is prevented from being emitted from a region that overlaps a contract hole in a structure in which light emitting devices are stacked. A stacked organic electro-luminescent display apparatus includes a contact hole that electrically connects a first electrode or a second electrode to a driving circuit. The first or second electrode and a second organic compound layer are provided in the contact hole, and the second organic compound layer existing in the contact hole does not emit light.Type: GrantFiled: July 9, 2009Date of Patent: January 14, 2014Assignee: Canon Kabushiki KaishaInventors: Takashi Moriyama, Toshihiko Mimura, Nobuhiko Sato, Kohei Nagayama, Masami Iseki, Nozomu Izumi, Junya Tamaki
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Patent number: 8629855Abstract: An apparatus operable in touch-input mode and scanning mode uses a light guide and a camera to look through a slanted facet at one corner of the light guide. The light guide has an upper surface for placing a touch object or an item for scanning. An angular sensitive grating is located on lower surface having fringes such that when a light beam directed from a location P on upper surface toward lower surface at a predefined direction, it is diffracted by the grating and guided toward the slanted facet. The diffracted beam exits the slanted facet at an exiting angle indicative of the location P. When an object or item is placed on upper surface, it causes changes in exit beam intensity. From exiting angles and intensity changes, a camera is able to locate touch objects or to acquire an image of the scanned item.Type: GrantFiled: December 20, 2007Date of Patent: January 14, 2014Assignee: Nokia CorporationInventors: Seppo Pienimaa, Kong Qiao Wang
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Patent number: 8619042Abstract: A display apparatus includes a touch panel provided overlapped on a display screen, a touch pen allowing switching of degree of smoothness of a pen tip portion in a plurality of levels and a controller causing, when the tip end of the touch pen touches the touch panel, a prescribed object image to be displayed on a position corresponding to the touched position. The controller includes a display manner selecting unit for selecting a manner of displaying the object image in accordance with the degree of smoothness of the tip end portion of the touch pen, and a display controller for displaying the object in the display manner selected by the display manner selecting unit at the position corresponding to the touched position.Type: GrantFiled: November 10, 2008Date of Patent: December 31, 2013Assignee: Sharp Kabushiki KaishaInventor: Toshiyuki Taniuchi
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Patent number: 8605057Abstract: A reflection detection apparatus includes: a light-emitting surface; a detection light output portion to obliquely emit detection light from an emission area as a part of the light-emitting surface; a plurality of light-receiving devices to selectively receive, as reflected detection light, the detection light that is emitted to an external object from the emission area and enters the light-emitting surface with a predetermined angle after being reflected by the external object; and a height detection portion to obtain a height of a spot at which the detection light is reflected by the external object using positional information of the light-receiving device which has received the reflected detection light and positional information of the emission area, the height being a distance from the light-emitting surface.Type: GrantFiled: February 18, 2010Date of Patent: December 10, 2013Assignee: Sony CorporationInventor: Ying Bao Yang
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Patent number: 8599321Abstract: A touch-sensing display device, specifically to a borderless touch-sensing display device, is disclosed. The touch-sensing display device includes a display module and a touch-sensing module. The touch-sensing module includes a first sensing sheet and a second sensing sheet, wherein a space exists between the first sensing sheet and the second sensing sheet. The first sensing sheet includes a lens layer, a plurality of first conductive portions, and a conductive film, wherein the conductive film is disposed on the lens layer while the first conductive portions are distributed on two opposite sides of the lens layer. The second sensing sheet includes a substrate, a plurality of second conductive portions, and a plurality of conductive strips, wherein the second conductive portions are selectively distributed on one of two sides of the substrate while the conductive strips are respectively connected to the second conductive portions and have different voltages.Type: GrantFiled: December 30, 2010Date of Patent: December 3, 2013Assignee: AU Optronics CorporationInventors: Kuo-Feng Kao, Tsung-Chin Cheng, Kung-Chieh Huang, Zeng-De Chen, Seok-Lyul Lee
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Patent number: 8597569Abstract: Technologies are described herein for providing sterilization of a touchscreen or other tactile input surface of a user input device. A self-sterilizing user input device includes a touchscreen for receiving tactile user input and an ultraviolet (UV) light source that emits UV light onto a touchscreen at a sterilization wavelength. A controller selectively activates and deactivates the UV light source according to whether a user is at or near the user input device. According to one aspect, the user input device includes a backlight to illuminate the touchscreen. The UV light source is positioned with the backlight to provide the UV light from a rear side of the touchscreen.Type: GrantFiled: April 19, 2010Date of Patent: December 3, 2013Assignee: Microsoft Corporation, LLCInventors: Robert Warren Gruen, James F. St. George
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Patent number: 8599138Abstract: An information processing apparatus is provided which includes a position acquisition unit for obtaining a display position of an input area in a display area, and a display control unit for controlling, based on the display position of the input area, in the display area a display position of an input operation area in which a character to be displayed in the input area is input. The display control unit displays the input area near the display position of the input area, and makes the input operation area follow the movement of the input area when the display position of the input area is moved.Type: GrantFiled: July 19, 2010Date of Patent: December 3, 2013Assignee: Sony CorporationInventors: Kazuma Takahashi, Manabu Yasumi
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Patent number: 8593435Abstract: An optical touch apparatus includes an inputting interface, an optical module, a light receiving module, and a processing module. The inputting interface includes a surface and a light transmitting unit under the surface. The optical module and the light receiving module are set on a first side and a second side of the inputting interface. The optical module receives an incident beam and generates a plurality of parallel sensing lights according to the incident beam. When the plurality of parallel sensing lights pass the light transmitting unit to the light receiving module, the light receiving module generates a sensing result according to the condition the light receiving module receives the plurality of sensing lights. The processing module determines a touch point position formed on the surface according to the sensing result.Type: GrantFiled: June 10, 2010Date of Patent: November 26, 2013Assignee: Raydium Semiconductor CorporationInventors: Meng-Shin Yen, William Wang, Chung-Cheng Chou
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Patent number: 8587564Abstract: The present invention relates to a touch module including a light emitting part, a light waveguide, a frustration layer, and a light receiving part. The light emitting part emits light and is disposed along a first direction. The light waveguide includes a first side surface and a second side surface and transmits light incident to the first side surface to the second side surface. The light emitting part is disposed on the first side surface, and the second side surface is disposed opposite to the first side surface along a second direction substantially perpendicular to the first direction. The frustration layer is disposed over the light waveguide and contacts the light waveguide in response to a touch to frustrate a total internal light reflection. The light receiving part is disposed on the second side surface of the light waveguide to detect a position of the touch.Type: GrantFiled: September 20, 2010Date of Patent: November 19, 2013Assignee: Samsung Display Co., Ltd.Inventors: Jong-Hee Kim, Cheol-Woo Park, Jin-Hwan Kim, Guk-Hyun Kim
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Publication number: 20130300717Abstract: A touch display device including a display module and a touch module is provided. The touch module is disposed above the display module and includes a transparent cover, a touch electrode layer and a phase retardation protection layer. The display module is configured to provide an image light. The touch-sensing layer is disposed on the transparent cover and between the display module and the transparent cover. The phase retardation protection layer covers the touch-sensing layer. A polarization direction of the image light provided by the display module is changed after passing through the phase retardation protection layer. A touch display device including a phase retardation planarization layer is also provided.Type: ApplicationFiled: December 13, 2012Publication date: November 14, 2013Applicant: HTC CORPORATIONInventors: Syuan-Ling Yang, Chih-Jen Hu
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Patent number: 8581868Abstract: To prevent a function assigned to a selection item from being performed by an erroneous operation at the time when both housings are expanded or housed.Type: GrantFiled: October 26, 2009Date of Patent: November 12, 2013Assignee: Sharp Kabushiki KaishaInventor: Naoto Satokata
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Patent number: 8581884Abstract: A touch sensing apparatus is controlled to determine the position of one or more objects (7) that interact with a touch surface (1). The apparatus includes a group of emitters (2) arranged to emit light to illuminate at least part of the touch surface (1), a light detector (4) arranged to receive light from the group of emitters (2), and a processing element (7). Each emitter (2) is controlled to transmit a code by way of the emitted light such that the code identifies the respective emitter (2). The codes may at least partly be transmitted concurrently. The codes may be selected such that a value of an autocorrelation of each code is significantly higher than a value of a cross-correlation between any two codes of different emitters (2).Type: GrantFiled: December 2, 2009Date of Patent: November 12, 2013Assignee: FlatFrog Laboratories ABInventors: Christer FĂ„hraeus, Henrik Wall, Ola Wassvik, Tomas Christiansson
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Patent number: 8576201Abstract: A stylus for a portable electronic device, includes a bar portion, a nib portion, and a lens member. The nib portion is formed at an end of the bar portion, the lens member is rotatably connected to the nib portion and used as a magnifying lens to better observe characters written using the stylus.Type: GrantFiled: April 27, 2011Date of Patent: November 5, 2013Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) LimitedInventors: Zheng Shi, Guo-Wu Jiang
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Patent number: RE44866Abstract: 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: GrantFiled: May 10, 2013Date of Patent: April 29, 2014Assignee: Samsung Display Co., Ltd.Inventors: Sung-Ku Kang, Tae-Hyeog Jung, Choon-Hyop Lee, Dong-Wook Kang