Transparent Substrate Having Light Entrapment Capability (i.e., Waveguides) Patents (Class 345/176)
  • Patent number: 10268319
    Abstract: A touch-sensitive apparatus includes a light-transmissive panel having a front surface, an opposite rear surface, and a side edge connecting the front and rear surfaces, and a light-transmissive sheet laminated over the front surface of the light-transmissive panel. The light-transmissive sheet has a portion extending beyond the side edge of the light-transmissive panel to cover a light emitter and detector. The touch-sensitive apparatus further includes a shielding element on a lower surface of the light-transmissive sheet, the shielding element covering at least said light emitter and detector, and the shielding element blocking light having a wavelength range in which the light emitter outputs light. The lower surface of the light-transmissive sheet is in optical contact with the front surface of the light-transmissive panel.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: April 23, 2019
    Assignee: FlatFrog Laboratories AB
    Inventors: Ola Wassvik, Håkan Bergström, Gustav Fagrenius
  • Patent number: 10268288
    Abstract: According to some embodiments, an accessory device for use with a touch sensitive portion of an electronic device is described. The accessory device can include a housing having walls that carry operational components, where the operational components include a processor coupled to a feedback component arranged to provide feedback and a distal tip coupled to the feedback component. The distal tip is capable of engaging with and transmitting a load applied to the housing to an external surface of the touch sensitive portion. The processor can be further coupled to a sensor in communication with the distal tip, the sensor being capable of (i) detecting a physical change when the distal tip engages with the external surface, and (ii) responding to the physical change by providing a detection signal to the processor, that, in response, instructs the feedback component to provide the feedback to the distal tip.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: April 23, 2019
    Assignee: Apple Inc.
    Inventors: Paul X. Wang, Alex J. Lehmann, Joel N. Ruscher
  • Patent number: 10048792
    Abstract: An input device may include an input surface. The input device may further include a first display layer coupled to the input surface. The input device may further include a sensing element disposed on a second display layer and a spacer element disposed between the first display layer and the second display layer. The sensing element may be disposed below the spacer element. The sensing element may be further configured to detect an input force applied by an input object to the input surface.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: August 14, 2018
    Assignee: Synaptics Incorporated
    Inventor: Richard Schediwy
  • Patent number: 9977275
    Abstract: The present disclosure relates to a filter module and a touch screen having the filter module. The filter module includes a substrate, the substrate includes a first surface and a second surface opposite to the first surface, the first surface is provided with a shielding matrix and a color resister distributed in the shielding matrix, the shielding matrix includes intersecting grid lines, the grid lines intersect to form grids, the color resister is formed in the grids, the second surface is provided with a conductive layer, the conductive layer comprises a first conductive pattern and a second conductive pattern, the first conductive pattern and the second conductive pattern are spaced apart from each other to form a sensing structure, the conductive layer is coated with a coating layer.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 22, 2018
    Assignee: NANCHANG O-FILM TECH. CO., LTD.
    Inventors: Genchu Tang, Shengcai Dong, Wei Liu, Bin Tang, Shilei He
  • Patent number: 9927931
    Abstract: A touch panel includes: a substrate which has sensing and peripheral areas; first sensing electrodes located on a surface of the substrate and arranged along a first direction in the sensing area and second sensing electrodes arranged along a second direction intersecting the first direction; a first connector located on the surface of the substrate and connecting the first sensing electrodes along the first direction; an insulating layer pattern located on the first connector; a second connector located on the insulating layer pattern, intersecting the first connector to be insulated from the first connector, and connecting the second sensing electrodes along the second direction; wiring lines located on the surface of the substrate, located in the peripheral area, and electrically connected to the first sensing electrodes or the second sensing electrodes; and a conductive pattern located between each of the second sensing electrodes and the second connector.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: March 27, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hong Sick Park
  • Patent number: 9870080
    Abstract: A method for controlling a user interface using an indirect input device includes determining a first touchdown location of an input object, determining a first subsequent location of the input object, calculating a first direction and a first distance between the first touchdown location and the first subsequent location, and moving a cursor representation on a display in a second direction and at a velocity. The method further includes detecting a touchdown event of at least two input objects, determining a second touchdown location of the at least two input objects, determining a second subsequent location of the at least two input objects, calculating a third direction and a second distance from the second touchdown location and the second subsequent location, and modulating a user interface action in a fourth direction at a magnitude.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: January 16, 2018
    Assignee: Synaptics Incorporated
    Inventors: Mohamed Ashraf Sheik-Nainar, Daniel L. Odell, Eric Faggin, Kipling Inscore
  • Patent number: 9830020
    Abstract: The present disclosure relates to a touch panel. The touch panel includes a substrate; one or more infrared light-emitting devices; an infrared total reflection coverplate that is deformable in response to a touch of a touching object; an infrared sensing layer including at least one sensing wire in a first direction and at least one sensing wire in a second direction. The sensing wires in the first direction and the sensing wires in the second direction are insulated from each other and are made of photoconductive material sensitive to the infrared light emitted from the infrared light-emitting device.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: November 28, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventor: Ang Xiao
  • Patent number: 9756722
    Abstract: The transparent electroconductive film is provided with: a transparent substrate formed from a film-shaped polymer resin; a first hard coat layer laminated on one surface of the substrate; and a first transparent conductor layer laminated on the upper side of the first hard coating layer. The substrate has a film thickness of 2 to 250 ?m. The first hard coating layer is formed from a curable resin containing an inorganic oxide, and has a film thickness of 0.01 ?m to less than 0.5 ?m, or more than 6 ?m to 10 ?m. The first transparent conductor layer is formed from at least one material selected from the group consisting of an inorganic oxide, a metal, and carbon, has a film thickness of 10 nm to 2 ?m, and is patterned so as to have formed thereon a patterned section and a non-patterned section.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 5, 2017
    Assignee: JNC CORPORATION
    Inventors: Yoshitaka Morimoto, Takuro Tanaka, Koji Ohguma, Aki Kuromatsu
  • Patent number: 9740318
    Abstract: In an aspect, a display device including: an entire window, said entire window including a display area and a non-display area outside the display area; a display panel; a first adhesive layer disposed on the display panel; a touch screen panel disposed on the first adhesive layer; a first light blocking member disposed on the touch screen panel; a second adhesive layer disposed on the touch screen panel and the first light blocking member; and a protection window disposed on the second adhesive layer is provided.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: August 22, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Woo Han, Tae Joon Kim, Kwan Young Han
  • Patent number: 9727227
    Abstract: An invention is disclosed for using multi-touch input in a remote presentation session. In embodiments of the invention, a client computer is configured to locally receive both mouse and keyboard input, and multi-touch input. Where the client computer receives mouse or keyboard input, it sends this input to a remote presentation session server via a TCP connection. Where the client computer receives multi-touch input, it sends this input to the remote presentation session server via a UDP connection. The server computer processes input received from the client computer, via either the TCP or UDP connection, and sends the client a graphical result of performing processing corresponding to that received input.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: August 8, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Elton Saul, Benjamin Meister, Daniel Keymer
  • Patent number: 9720547
    Abstract: An optical apparatus includes a touch substrate; a waveguide layer arranged on the touch substrate, the waveguide layer including a plurality of waveguides; an optical output structure arranged on the waveguide layer and configured to output light propagating in the plurality of waveguides at touched locations on the touch substrate; a gap layer arranged to provide a predetermined gap between the waveguide layer and the optical output structure; and an optical system, which projects light output by the optical output structure.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: August 1, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-taek Seo, Seung-hoon Han, Hong-seok Lee, Wan-joo Maeng
  • Patent number: 9582117
    Abstract: This disclosure provides systems, methods and apparatus related to touch and gesture recognition with an electronic interactive display. The interactive display has a front surface that includes a viewing area, a planar light guide disposed proximate to and behind the front surface, a light source, and at least one photo sensing element coupled with the first planar light guide. The planar light guide is configured to receive scattered light, the received scattered light resulting from interaction between light emitted by the light source and an object in optical contact with the front surface. The photo sensing element is configured to detect at least some of the received scattered light and to output, to a processor, image data. The processor is configured to recognize, from the image data, one or both of a contact pressure and a rotational orientation of the object.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: February 28, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: John Michael Wyrwas, Evgeni Petrovich Gousev, Russell Wayne Gruhlke, Khurshid Syed Alam, Jacek Maitan, Linda Stacey Irish, Evgeni Yurij Poliakov, Thomas Gordon Brown, Samir Kumar Gupta
  • Patent number: 9569896
    Abstract: A glass type mobile terminal is provided. The mobile terminal includes a band frame wearable on a user's head, a light transmissive lens coupled to the band frame to be located in front the user wearing the band frame, the light transmissive lens comprising a transparent screen where an image is focused, a projector for outputting an image toward the transparent screen from a lateral surface of the light transmissive lens, a photo shutter coupled to a front surface of the lens, with a controllable transparency, and a controller for controlling the transparency of the photo shutter, such that the visibility of the image focused on the light transmissive lens may be enhanced by controlling the transparency of the light transmissive lens, using the photo shutter, that a clear image may be seen even in a bright place.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: February 14, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Seungmin Seen, Kyunghee Yoo, Anna Yoo, Jongpil Kim
  • Patent number: 9529383
    Abstract: To this end, according to one embodiment, the display device, comprising: a touch sensor unit; a display unit; a transparent display unit; a position sensor unit; and a processor configured to: detect the second touch input by activating the second touch sensor unit and control the first object displayed in the display unit based on the detected second touch input when a first position, and detect the first touch input and the third touch input respectively by activating the first touch sensor unit and the third touch sensor unit, control the first object displayed in the display unit based on the detected first touch input, and control the second object displayed in the transparent display unit based on the detected third touch input when a second position.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: December 27, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Sinae Chun, Jihwan Kim, Jongho Kim, Doyoung Lee, Yongsin Kim
  • Patent number: 9507450
    Abstract: To prevent disconnection of a touch panel to which a three-dimensional shape has been imparted, the touch panel includes a first electrode layer that is formed upon a first base material sheet and includes material having flexibility. The first electrode layer has a first electrode part and a first mount part extending from the first electrode part. A first routing circuit layer is formed upon the first mount part. A second electrode layer is formed upon a second base material sheet and includes material which has flexibility. The second electrode layer has a second electrode part and a second mount part extending from the second electrode part. A second routing circuit layer is formed upon the second mount part. A first bonding layer bonds the first base material sheet to the second base material sheet. A second bonding layer bonds the second base material sheet to a protective layer.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: November 29, 2016
    Assignee: NISSHA PRINTING CO., LTD.
    Inventor: Kazuto Nakamura
  • Patent number: 9442604
    Abstract: An optical-touch calibration method and an optical-touch panel are disclosed herein. The optical-touch calibration method is suitable for the optical-touch panel including a projective light source and a line optical sensor. The optical-touch calibration method includes steps of: generating a projective beam by the projective light source, and the projective beam being reflected to the line optical sensor; utilizing the line optical sensor to measure the reflected projective beam for obtaining a reflected intensity curve relative to a linear coordinate axis; calculating an intensity difference between the reflected intensity curve and a reference intensity curve; and, adjusting an emitting power of the projective light source if the intensity difference exceeds a threshold value.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: September 13, 2016
    Assignee: WISTRON CORP.
    Inventors: Kuo-Hsien Lu, Yu-Yen Chen
  • Patent number: 9405382
    Abstract: An optical touch-sensitive device is able to determine the locations of multiple simultaneous touch events. The optical touch-sensitive device includes multiple emitters and detectors coupled with an optical coupler assembly through a waveguide on the surface on the optical-touch sensitive device. Each emitter produces optical beams which propagate in the waveguide via total internal reflection and are received by the detectors. Touch events disturb the optical beams, and are determined based on the disturbances. The optical touch-sensitive device further includes an intermediate layer interposed between the waveguide and a display surface. The intermediate layer preserves optical beam propagation in the waveguide and is transparent to visible light. The optical touch-sensitive device may further include at least one frame zone, at least one dead zone, and/or at least one fixed graphics zone.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: August 2, 2016
    Assignee: Rapt IP Limited
    Inventors: Owen Drumm, Julien Piot, Robert Copperwhite
  • Patent number: 9348038
    Abstract: Systems and methods of resetting a blocking-type photoconductive imaging detector are provided. In one embodiment, after having obtained an image, the imaging detector may be reset by applying a reversed bias potential difference and illuminating the imaging radiation detector with photoexcitation radiation. The photoexcitation radiation has a wavelength selected to excite mobile charges within the photoconductive layer and a spatial intensity profile related to the measured image for neutralizing the trapped charges in a spatially compensated manner. In another embodiment, a photoionizing beam is directed onto an x-ray light valve having a liquid crystal layer in contact with a photoconductive layer.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: May 24, 2016
    Assignee: THUNDER BAY REGIONAL INSTITUTE
    Inventors: John Rowlands, Giovanni Decrescenzo, Chandra Pokhrel, Alla Reznik
  • Patent number: 9342187
    Abstract: The present invention relates to an optical touch-sensitive device and a method of determining a position and determining a position change of an object contacting an optical touch sensitive device. In particular, the present invention relates to an optical touch pad and a method of determining a position and determining a position change of an object contacting an optical touch pad. A touch-sensitive device, according to the present invention may comprise a light source, a touch-sensitive waveguide, a detector array, and a first light redirecting member, wherein at least a part of the light propagating towards a specific point of the detector array is prevented from being incident upon the specific point of the detector array when an object contacts a touch-sensitive surface of the touch-sensitive waveguide at a corresponding specific contact point.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: May 17, 2016
    Assignee: O-NET WAVETOUCH LIMITED
    Inventors: Michael Linde Jakobsen, Vagn Steen Gruner Hanson, Henrik Chresten Pedersen
  • Patent number: 9323396
    Abstract: A touch-screen device includes an imaging waveguide, in which the imaging waveguide has a radiation receiving surface and an imaging surface different than the radiation receiving surface. The imaging waveguide is configured to receive, at the radiation receiving surface, radiation emitted by a contact receiving structure, and transmit the received radiation from a position on the radiation receiving surface to a position and/or angle of incidence on the imaging surface as a function of the position on the radiation receiving surface at which the transmitted radiation was received. An imaging sensor coupled to the imaging surface of the imaging optical waveguide is configured to detect radiation incident upon the imaging surface of the imaging optical waveguide. A processing device coupled to the imaging sensor is configured to determine contact points on the exposed contact surface of a contact receiving structure based on radiation detected by the imaging sensor.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: April 26, 2016
    Assignee: PERCEPTIVE PIXEL, INC.
    Inventors: Jefferson Y. Han, Joel S. Kollin
  • Patent number: 9268413
    Abstract: The present invention relates to a multi-touch display system that supports both multi-touch human input as well as input from a digital pen. The display system has a display panel that is configured to allow human touches along a front surface to be detected and tracked. The display panel also includes a location pattern that preferably covers the viewable areas of the display panel. The location pattern is configured to allow any location within the location pattern to be detected by analyzing a portion of the display pattern that is associated with the particular location. The digital pen is used to “write” on the display panel, wherein such a writing function involves detecting the location where writing occurs and controlling display content that is displayed on the display panel to reflect what is being written.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: February 23, 2016
    Assignee: RPX CLEARINGHOUSE LLC
    Inventors: Bernard Doray, Paul To, Michael Haller, James Robert Powell, Peter Brandl, Jakob Leitner, Thomas Josef Seifried, Moses Tao-Ling Ma
  • Patent number: 9268447
    Abstract: A touch display panel including a first substrate, scan lines, data lines, a second substrate, a display medium, a second electrode set and a patterned-common-electrode layer is provided. The scan lines and the data lines are disposed on the first substrate and at least parts of the data lines form a first electrode set including first electrode subsets. The second substrate opposite to the first substrate has a top surface and a bottom surface facing the first substrate. The display medium is sandwiched between the first and the second substrates. The second electrode set disposed on the second substrate includes second electrode subsets arranged along a second direction intersected with the first direction. The patterned-common-electrode layer includes openings is disposed between the first and the second electrode sets. An orthogonal projection of the openings is overlapped with that of the first and the second electrode subsets.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: February 23, 2016
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventor: Chia-Wei Hu
  • Patent number: 9262011
    Abstract: An interactive input system comprises an optical waveguide, a radiation source directing radiation into the optical waveguide, the radiation undergoing total internal reflection within the optical waveguide in response to at least one touch input on a surface of the optical waveguide. At least one imaging device is positioned adjacent to the waveguide, the at least one imaging device having a field of view looking inside the optical waveguide and capturing image frames thereof. Processing structure processes the image frames captured by the at least one imaging device to determine a location of the at least one touch input based on a frequency of reflections of the radiation appearing in the image frame.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: February 16, 2016
    Assignee: SMART Technologies ULC
    Inventors: David Gregory Popovich, Yunqiu Rachel Wang, Vaughn E. Keenan, Grant McGibney, Robbie Rattray, Patrick James Gurtler, Chris Willson, Nicholas Svensson
  • Patent number: 9134854
    Abstract: An apparatus is controlled to detect locations of a plurality of objects on a touch surface of a panel. An input scanner arrangement introduces at least three beams of radiation into the panel for propagation by internal reflection, and sweeps the beams inside the panel across a sensing area, preferably in at least two different principal directions. At least one radiation detector is arranged to receive the beams from the input scanner arrangement while they are swept across the sensing area. A data processor is connected to the radiation detector(s) and operated to identify the locations based on an attenuation of the beams caused by the objects touching the touch surface within the sensing area, the attenuation being identifiable from an output signal of the radiation detector(s). Each output signal may be further processed to generate a transmission signal, by dividing the output signal by a background signal which represents the output signal without any object on the touch surface.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: September 15, 2015
    Assignee: FlatFrog Laboratories AB
    Inventors: Ola Wassvik, Tomas Christiansson
  • Patent number: 9134802
    Abstract: A gesture judgment method used in an electronic device having frame capturing function is provided. A plurality of MHI (motion history image) angles/directions are obtained from a plurality of corresponding MHIs. Whether a current gesture control is valid is judged according to the MHI angles/directions. If the current gesture control is valid, then weight assignment is performed on the MHI angles/directions to obtain a judgment result of the current gesture control.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: September 15, 2015
    Assignee: LITE-ON TECHNOLOGY CORPORATION
    Inventor: Lieh-Kuang Hu
  • Patent number: 9128569
    Abstract: A touch screen panel includes a thin film substrate having sensing patterns formed thereon that is implemented as an isotropic film, and a polarizing plate is disposed on the sensing patterns so that it is possible to minimize or reduce degradation of image quality. The touch screen panel includes a thin film substrate, sensing patterns, and sensing lines. The thin film substrate is divided into an active area and a non-active area. The sensing patterns are formed in the active area of the thin film substrate. The sensing lines are formed in the non-active area of the thin film substrate so as to be connected to the sensing patterns. In the touch screen panel, the thin film substrate is implemented as an isotropic film.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: September 8, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Ku Kang, Mi-Ae Park, Kwan-Young Han, Tae-Hyeog Jung, Mikiya Itakura
  • Patent number: 9118329
    Abstract: Accordingly, an embodiment of the present invention provides a touch screen panel including: sensing patterns in a display region of a transparent base; and sensing lines in a non-display region positioned at an outer side of the display region and coupled to the sensing patterns. Here, the sensing patterns include: a plurality of first sensing cells in a plurality of first lines in a first direction; first connecting lines coupling the first sensing cells in corresponding first lines to each other; second sensing cells in a plurality of second lines in a second direction; and second connecting lines coupling the second sensing cells in corresponding second lines to each other, and the first sensing cells and the second sensing cells each have a stacked structure, and the first connecting lines are integral with an upper layer of the first sensing cells.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: August 25, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Bum Kim, Jung-Mok Park
  • Patent number: 9098124
    Abstract: An electronic device may be provided with a touch screen display that is controlled based on information from a proximity sensor attached underneath a display layer. The proximity sensor may have a light source that emits infrared light and a light detector that detects reflected infrared light. When the electronic device is in the vicinity of a user's head, the proximity sensor may produce data indicative of the presence of the user's head. Variations in proximity sensor output due to smudges on the proximity sensor can be detected by providing the proximity sensor with an additional light source. The additional light source may be used to inject light into the display layer. The injected light may be guided within the display layer by total internal reflection. In the presence of smudge, the internally reflecting light may deviate from its normal propagation path.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: August 4, 2015
    Assignee: Apple Inc.
    Inventor: Prashanth S. S. Holenarsipur
  • Patent number: 9035871
    Abstract: An apparatus, and an associated method, forms a user interface permitting input of input instructions to an electronic device. Input commands are evidence by tactile input forces applied to a force receiving surface. Force sensing elements are positioned to sense indications of the tactile input force. The force sensing element is caused to exhibit a selected input parameter value through application of a selected force thereto by application of a tightening torque to a fastener positioned in proximity to the force sensing element.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: May 19, 2015
    Assignee: BlackBerry Limited
    Inventors: Patrick Clement Strittmatter, Marc Edward Holbein, Rene Pierre Marchand, Angela Dawn Usiski
  • Patent number: 9035909
    Abstract: An apparatus for determining a location of at least one object on a touch surface, comprising: a light transmissive panel defining the touch surface and including a controllable reflective boundary; an illumination arrangement configured to introduce light into the panel; a control device configured to selectively control the reflective boundary such that the light may pass between a first layer and a second layer via an opening in the reflective boundary; a light detection arrangement configured to measure the light passed via the opening and impinged on the touch surface; and a processor unit configured to determine the location as a function of the measured light passed via the opening and the selective control of the reflective boundary. A method and computer readable medium is also described.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: May 19, 2015
    Assignee: FLATFROG LABORATORIES AB
    Inventor: Tomas Christiansson
  • Patent number: 9036240
    Abstract: The disclosure provides an electronic paper display. The electronic paper display includes an electronic paper panel. A light guide plate is disposed on the electronic paper panel. The light guide plate has a first surface and a second surface opposite to the first surface. A conductive pattern structural layer is disposed on the light guide plate. A light source is disposed on a side of the light guide plate. The first surface of the light guide plate is a patterned surface. A light generated by the light source is reflected or scattered to the electronic paper panel by the patterned surface.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: May 19, 2015
    Assignee: Wistron Corp.
    Inventor: Sheng-Shan Huang
  • Patent number: 9035915
    Abstract: A photo sensor type touch panel includes a plurality of readout lines electrically connected in parallel. The overall capacitance of a coupling capacitor between the readout lines connected in parallel and adjacent data lines having one type of polarity is equal to the overall capacitance of a coupling capacitor between the readout lines connected in parallel and adjacent data lines having the other type of polarity.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: May 19, 2015
    Assignee: AU Optronics Corp.
    Inventors: Yueh-Hung Chung, Yi-Ru Cheng, Ya-Ling Hsu, Hsueh-Ying Huang
  • Patent number: 9030426
    Abstract: A touch system including a display panel associated with a first electrode, a touch panel having a plurality of touch electrodes having a plurality of transmit electrodes and a plurality of receive electrodes, and a voltage generating circuit is provided. When a mutual capacitance between a selected transmit electrode and a selected receive electrode is measured, the voltage generating circuit applies a first voltage of a first polarity to the selected transmit electrode, and substantially concurrently applies a second voltage of a second polarity that is opposite to the first polarity to at least one other transmit electrode for minimizing charges associated with an application of the first voltage to the selected transmit electrode and accumulated at the first electrode.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: May 12, 2015
    Assignees: Innolux Corporation, Innocom Technology (Shenzhen) Co., Ltd.
    Inventors: Martin Edwards, Richard Ayres
  • Patent number: 9024889
    Abstract: An information presenting device of present invention includes a conductive layer to which an AC voltage is applied, an insulating layer for covering the conductive layer and presenting a tactile sense when a part of a body of a user set to a ground potential is in contact with the insulating layer.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: May 5, 2015
    Assignee: Sony Corporation
    Inventors: Ivan Poupyrev, Shigeaki Maruyama
  • Patent number: 9024775
    Abstract: A control panel for a measuring device with a housing and a control and inspection window. The control panel includes at least one optical key that is operable through the control and inspection window using a finger. The optical key includes a transmitting element and a receiving element. The control panel is constructed such that it allows reliable and quick control even when the housing is open and the control panel is exposed. Specifically, the control panel has at least one corresponding finger-operable mechanical key in addition to the finger-operable optical key in order to reliably and quickly control the measuring device when a predefined control distance for the optical key is no longer ensured by the control and inspection window of the housing.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: May 5, 2015
    Assignee: KROHNE Messtechnik GmbH
    Inventor: Helmut Brockhaus
  • Patent number: 9024917
    Abstract: A light guide for illuminating a display screen, including a vertical cone-shaped entrance surface including an aperture for admitting light beams emitted by an LED, a folding mirror for reflecting the admitted light beams at an angle of approximately 90°, and for horizontally collimating the admitted light beams, a horizontal guide for guiding the reflected light beams to an exit surface, and an exit surface positioned above a perimeter of a display screen for directing the guided light towards a portion of the display screen, the exit surface being tilted vertically from the horizontal at a slight angle to direct the guided light beams towards the display, and being shaped horizontally as a concave lens to spread the guided light beams horizontally over an angular expanse of the display screen.
    Type: Grant
    Filed: March 9, 2013
    Date of Patent: May 5, 2015
    Assignee: Neonode Inc.
    Inventors: Thomas Eriksson, Lars Sparf, Björn Magnus Jacobsson Le Normand
  • Patent number: 9019217
    Abstract: A touch input location correction device (112) includes: a touch location detecting unit detecting a set of touch point coordinates; a user operation determining unit (105) determining details of an operation; a touch portion shift detecting unit (106) detecting a first state transition at a first time point during which the portion of the user is sliding on a touch area, the first state transition showing transition from a state where the user touches the touch area with both of a first portion and a second portion to a state where the user touches the touch area only with the second portion; a touch point coordinate correcting unit (107) correcting a set of touch point coordinates of the second portion based on sets of touch point coordinates, of the first portion and the second portion, before the first time point and outputting the corrected set of touch point coordinates.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: April 28, 2015
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventor: Shigehiro Iida
  • Publication number: 20150109259
    Abstract: A touch screen panel includes: a wave guide; a first transmitter at a first end of the wave guide to output an ultrasonic or light wave into the wave guide; a second transmitter at a second end of the wave guide to output the ultrasonic or light wave into the wave guide; a first receiver at the first end to receive the ultrasonic or light wave from the second transmitter and generate a first receipt signal; a second receiver at the second end to receive the ultrasonic or light wave and generate a second receipt signal; and a controller connected to the first receiver and the second receiver to detect a touch position on the wave guide using a time difference between a time point at which the first receipt signal is varied and a time point at which the second receipt signal is varied.
    Type: Application
    Filed: April 11, 2014
    Publication date: April 23, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Won-Ki HONG, Seung-Won PARK, Jong Seo LEE
  • Patent number: 9013441
    Abstract: A method and apparatus scan a plurality of scan groups in a capacitive sense array to generate signals corresponding to a mutual capacitance between the electrodes. Each of the plurality of scan groups is formed from a subset of the plurality of electrodes. A processing device identifies a scan group where the generated signal is affected by a presence of a conductive object. The processing device individually scans the subset of the plurality of sense elements in the identified scan group to determine a location of the conductive object.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: April 21, 2015
    Assignee: Cypress Semiconductor Corporation
    Inventors: Victor Kremin, Oleksandr Pirogov, Andriy Ryshtun
  • Patent number: 9015616
    Abstract: A computer-implemented user input method includes sensing a user manipulation of a mobile device to present a keyboard, automatically presenting, in response to the sensed manipulation, a search entry area on a display of the user device, and activating the keyboard to provide input into the search entry area.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: April 21, 2015
    Assignee: Google Inc.
    Inventors: Erick Tseng, Nickolas Jay Sears
  • Patent number: 9007347
    Abstract: A multi-touch sensing display apparatus is provided. The multi-touch sensing display apparatus may include a back light unit, a display panel, a sensor unit on a display surface of the display panel, and a touch light source unit providing light to be diffused by a touch of a user so that the sensor unit senses the touch of the user. The touch light source unit may include a touch light source and a transparent light guide plate. The transparent light guide plate may include a light guiding unit and a plurality of light emitting units integrally formed with each other as a single body, wherein the light guiding unit guides light from the touch light source to an inside thereof, and the plurality of light emitting units protrudes from the light guiding unit and emits light from the light guiding unit.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: April 14, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong-seok Lee, Yong-kweun Mun, Jung-woo Kim
  • Patent number: 9003335
    Abstract: The present disclosure relates to a mobile terminal capable of displaying a plurality of objects on a wallpaper, and a method for providing a user interface thereof. The mobile terminal includes a display unit to display a plurality of objects on a wallpaper, a sensing unit to detect a touch input on the display unit, and a controller to control the plurality of objects to be invisible in response to the touch input such that portions of the wallpaper obscured by the plurality of objects are visible.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: April 7, 2015
    Assignee: LG Electronics Inc.
    Inventors: Choonjae Lee, Sangwoon Lee, Samsick Kim, Minjeong Lee
  • Patent number: 9001079
    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: February 12, 2014
    Date of Patent: April 7, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Ku Kang, Tae-Hyeog Jung, Choon-Hyop Lee, Dong-Wook Kang
  • Publication number: 20150091875
    Abstract: Pressure-sensing touch systems and methods are disclosed for sensing the occurrence of a touch event based on pressure applied at a touch location. The touch system includes a light-source system and a detector system operably adjacent respective input and output edges of a waveguide. Pressure at a touch location on the waveguide gives rise to a touch event causes the waveguide to bend or flex. The waveguide bending causes a change in the optical paths of light traveling by FTIR, causing the light distribution in the output light to change. The changes are detected and are used to determine whether a touch event occurred, as well as the time-evolution of the touch event. The changes in the output light can include polarization changes caused by birefringence induced in the waveguide by the applied pressure applied. Various detector configurations are disclosed for sensing the location and pressure of a touch event.
    Type: Application
    Filed: August 15, 2014
    Publication date: April 2, 2015
    Inventor: Ming-Jun Li
  • Patent number: 8996038
    Abstract: A method for displaying an idle screen, which is varied depending on a specific condition of a mobile communication terminal, for better graphic impressions. When the user of the mobile communication terminal travels between countries, and a border crossing is detected, a landmark image of a corresponding country is displayed on the idle screen. In addition, an animation effect is displayed on the idle screen so as to inform of the occurrence of the corresponding event. Accordingly, a novel graphic effect is provided to the user via a user interface having enhanced entertaining features.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 31, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Hwan Baek, Jin-Yong Kim, Kyoung-Sik Yoon, Hee-Woong Choi, In-Won Jong, Hee-Kyung Jeon
  • Patent number: 8994695
    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: Grant
    Filed: April 4, 2013
    Date of Patent: March 31, 2015
    Assignee: Corning Incorporated
    Inventors: Jeffrey Stapleton King, Mathieu Charbonneau-Lefort, Timothy James Orsley, William Richard Trutna
  • Patent number: 8988379
    Abstract: A display method, an electronic device, and a non-transitory storage medium are provided. The display method includes following steps. A picture having a first transparency is displayed on a touch screen of the electronic device. A touch operation on the touch screen is detected. A second transparency of the picture is determined according to a position of the touch operation, where the second transparency is higher than the first transparency. The picture having the second transparency and a screen image covered by the picture are simultaneously displayed on the touch screen.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: March 24, 2015
    Assignee: HTC Corporation
    Inventors: Kai-Feng Chiu, Yu-Jhang Lu, Shih-Yun Yang
  • Patent number: 8988360
    Abstract: A method for detecting a touch position includes integrating a readout current detected at a sensing part to generate an integrated readout voltage, converting the integrated readout voltage into a digital converted readout voltage data and compensating a variation of the digital converted readout voltage data to determine whether the sensing part is touched.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seiki Takahashi, Satoru Saito, Sang-Soo Kim, Bong-Hyun You, Byoung-Jun Lee, Jai-Hyun Koh
  • Patent number: 8982098
    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 12, 2014
    Date of Patent: March 17, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Yeon Kim, Sung-Sik Lee, Il Geun Bok, Hyun Kyung Shin
  • Patent number: 8982100
    Abstract: An interactive panel comprises an optical waveguide within which totally internally reflected (TIR) illumination propagates, a display device beneath the optical waveguide and a partially transparent layer beneath the display device. The partially transparent layer reflects backlight illumination towards the display device and at least allows TIR illumination escaping from the optical waveguide and passing through the optical waveguide and the display panel, as a result of one or more contacts made on the optical waveguide, to pass therethrough.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: March 17, 2015
    Assignee: SMART Technologies ULC
    Inventors: Robbie Rattray, David Popovich