Transparent Substrate Having Light Entrapment Capability (i.e., Waveguides) Patents (Class 345/176)
  • Patent number: 8451248
    Abstract: Disclosed is a display device that provides a user with tactile feedback using a tactile user interface. The display device includes a touch sensitive display unit to display an object, a tactile feedback unit to generate tactile feedback, and a controller. The controller detects a first touch that is in contact with a region of a first object displayed on the display unit, detects a second touch controlling the first object that is consecutive to the first touch, controls the first object in response to the second touch, generates first tactile feedback according to properties of the first object in response to the second touch, detects a third touch controlling the first object that is consecutive to the second touch, the third touch being detected in a region of a second object displayed on the display unit, and generates the first tactile feedback in response to the third touch.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: May 28, 2013
    Assignee: LG Electronics Inc.
    Inventor: Jihwan Kim
  • Patent number: 8451241
    Abstract: Disclosed is a liquid crystal display device to realize soft touch and sense touch regardless of illumination of external light or reflected light. The liquid crystal display device includes a liquid crystal panel including a first substrate and a second substrate facing each other, wherein a liquid crystal layer is interposed between the first substrate and the second substrate, an infrared sensor arranged on the first substrate, an infrared filter arranged corresponding to the infrared sensor arranged on the second substrate facing the first substrate, a first polarizing plate adhered to the back surface of the first substrate, a second polarizing plate adhered to the back surface of the second substrate, a light guiding plate arranged under the first polarizing plate, a first light source arranged on one side of the light guiding plate to emit white light, and a second light source arranged on the other side of the light guiding plate to emit infrared light to the light guiding plate.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: May 28, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Cheol-Se Kim, Ji-Hyun Jung, Min-Jae Lee
  • Patent number: 8446391
    Abstract: An optical touch display includes a display panel, a light source module, and a sensing module. The display panel has a first edge, a second edge, a third edge and a fourth edge. The light source module is disposed beside the first edge and the second edge of the display panel. The light source module is configure for providing a first parallel light and a second parallel light passing through above a display surface of the display panel. The first parallel light passes from the first edge of the display panel through the third edge of the display panel, and the second parallel light passes from the second edge of the display panel through the fourth edge of the display panel. The sensing module is disposed beside the third edge and the fourth edge of the display panel for sensing the first parallel light and the second parallel light. The optical touch display has advantageous of high reliability and low cost.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: May 21, 2013
    Assignee: Pixart Imaging Inc.
    Inventors: Yi-Hsien Ko, Cho-Yi Lin
  • Patent number: 8441467
    Abstract: High-resolution, scalable multi-touch sensing display systems and processes based on frustrated total internal reflection employ an optical waveguide that receives light, such as infrared light, that undergoes total internal reflection and an imaging sensor that detects light that escapes the optical waveguide caused by frustration of the total internal reflection due to contact by a user. The optical waveguide may be fitted with a compliant surface overlay to greatly improve sensing performance, minimize the affect of contaminants on and damage to the contact surface, to generally extend system life and to provide other benefits. The systems and processes provide true multi-touch (multi-input) and high-spatial and temporal resolution capability due to the continuous imaging of the frustrated total internal reflection that escapes the entire optical waveguide.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: May 14, 2013
    Assignee: Perceptive Pixel Inc.
    Inventor: Jefferson Y. Han
  • Patent number: 8443302
    Abstract: A contactless display system enables a user to interact with a displayed image by moving a finger, or pointer, toward a selected portion of the image. Images can be enlarged, or translated dynamically in response to detected movement. Operational methodology can be manually switched between contact-type and contactless operation to enhance flexibility.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: May 14, 2013
    Assignee: Honeywell International Inc.
    Inventors: Rui Zhang, Yingfei Wu, Thomas A. Plocher
  • Patent number: 8442366
    Abstract: Provided are an optical waveguide for a touch panel which has high light-gathering power on a light-emitting side and which may materialize a touch panel having excellent position detection performance, and a touch panel using the optical waveguide. The optical waveguide for a touch panel includes: cores; and an over cladding layer covers the cores, the cores including light-emitting cores each formed as a lens portion having a shape in plan view including a tapered portion whose width gradually increases toward an end surface on the light-emitting side and an elliptical arc portion which bulges outwardly a tip side of the tapered portion having the gradually-increasing width so as to be in a shape of an elliptical arc, the elliptical arc portion having a major axis direction aligned in a longitudinal direction of the tapered portion.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: May 14, 2013
    Assignee: Nitto Denko Corporation
    Inventor: Naoki Shibata
  • Patent number: 8432362
    Abstract: An integrated keyboard includes a touch pad and a dynamic keyboard embedded in an area of the touch pad. The touch pad, which may provide a transparent surface to allow the keyboard to be visible, provides motion tracking in areas around the periphery of the keyboard and may be configured into many operating modes. For example, virtual touchable buttons may be configured in the periphery of the keyboard. The keyboard may be provided as a dynamic keyboard with various layouts. A keyboard protector may be provided for each layout, with printed symbols for the keys under the layout. The integrated keyboard may also include a mini-projector to allow projection of a large image on a surface and a virtual Human Interface Device (HID) system to facilitate data input. With the input capabilities of the touch pad and the keyboard, the projector may be controlled in many additional ways not available in conventional projectors that are controlled by a few buttons. The virtual HID may provide motion tracking.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: April 30, 2013
    Assignee: ICE Computer, Inc.
    Inventors: Shang-Che Cheng, Chia-Ming Lin
  • Patent number: 8432374
    Abstract: The present invention relates to a position detector and a touch sensing device of using same with SNR enhancement. In one embodiment, the position detector has (P+1) inputs, each input for receiving an input signal associated with a position, P being a positive integer, and P operational amplifiers, each operational amplifier having a non-inverting input and an inverting input, where the inverting input of the j-th operational amplifier is electrically connected to the non-inverting input of the (j+1)-th operational amplifier, and the non-inverting input and the inverting input of the j-th operational amplifier are electrically connected to the j-th input port and the (j+1)-th input port, respectively, j=1, 2, 3, . . . , (P?1).
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: April 30, 2013
    Assignee: AU Optronics Corporation
    Inventors: Chun-Wei Yang, Chia-Feng Yang, Yu-Min Hsu, Yung-Tse Cheng
  • Patent number: 8421747
    Abstract: Object detection and user setting techniques are described. In an implementation, an object placed on a surface of the client is detected by the client. A determination is made as to which of a plurality of users correspond to the detected object. One or more user settings are located that correspond to the determined user.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: April 16, 2013
    Assignee: Microsoft Corporation
    Inventors: Nadav M. Neufeld, Gionata Mettifogo, Charles J. Migos, Afshan A. Kleinhanzl
  • Patent number: 8421776
    Abstract: A touch input system, comprising a surface, adapted to receive at least one simultaneous touch inputs from human fingers; a sensor adapted to detect the at least one touch inputs and produce at least one signal representing a unique position for the at least one touch input; and a processor, adapted to receive the at least one signal and produce an output representing a touch detection and a mapping of a coordinate position on the surface for each of the simultaneous touch inputs. The system may detect, for example, two touch inputs simultaneously. The surface may be non-planar and distinct from a small solid angle section of a sphere.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: April 16, 2013
    Assignee: Elo Touch Solutions, Inc.
    Inventor: Joel Kent
  • Patent number: 8421765
    Abstract: A touch sensing device capable of accurately detecting a touched position on a touch panel includes a touch panel, a conversion unit and a calculation unit. The touch panel having a plurality of horizontal sensing lines and vertical sensing lines generates a plurality of horizontal sensing signals and vertical sensing signals in response to a touch on the touch panel. The conversion unit generates a plurality of two-dimensional (2D) sensing signals according to the horizontal and vertical sensing signals. The calculation unit determines a touched position on the touch panel according to the 2D sensing signals.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: April 16, 2013
    Assignee: MStar Semiconductor, Inc.
    Inventors: Chi Kang Liu, Guo-Kiang Hung
  • Patent number: 8412281
    Abstract: A mobile phone of the present invention includes a first cabinet; a second cabinet that is slidable along an upper surface of the first cabinet; a first touch sensor that enables input by touching the upper surface; a projection that projects from the second cabinet toward the upper surface; a second touch sensor that detects a position of contact of the projection with the upper surface; and a CPU that controls input by the first touch sensor in accordance with output from the second touch sensor. The CPU enables input by the first touch sensor when the second cabinet is in a first position or OP position where the second case exposes a detection area of the first touch sensor to the outside, and disables input by the first touch sensor when the second cabinet is out of the first position.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: April 2, 2013
    Assignee: KYOCERA Corporation
    Inventors: Tadashi Higashiyama, Masaki Nakao
  • Patent number: 8411065
    Abstract: The present invention provides a touchpad with a double-layer printed circuit board structure. The touchpad comprises an upper layer, a bottom layer, a first conductor; and a second conductor; wherein the upper layer is configured to act as a touch-sensitive zone, and comprises a plurality of first conductive units, a first conductive wire and a plurality of second conductive units; the bottom layer comprises a wire connecting zone and a component zone, wherein the wire connecting zone further includes a second conductive wire and a connecting line configured to be electrically coupled to the component zone; and the first conductor and the second conductor are configured to connect the upper layer to the bottom layer; wherein the first and the second conductive units are each serially-connected to form a first touch-sensitive line and a second touch-sensitive line, respectively.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: April 2, 2013
    Assignee: BYD Company Ltd.
    Inventors: Jianbo Yang, Bangjun He, Yun Yang, Wei Feng
  • Patent number: 8405640
    Abstract: The invention relates to an optical-signal based control surface for a data processing system, the surface being designed as a planar optical fiber, on which photoelectric sensors are provided, the measured signals of which are used to deduce the position of a light signal striking the control surface and the position being associated with a processing mark in the data processing system. A layer having photoluminescent properties is in contact with at least one layer of the planar optical fiber. The light of the light beam shining on the control surface is converted into longer-wave light by way of photoluminescence, the light being coupled into the waveguide, diffusing therein, and being measured by the photoelectric sensors.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: March 26, 2013
    Assignee: Isiqiri Interface Technologies GmbH
    Inventors: Richard Ebner, Robert Koeppe
  • Patent number: 8400430
    Abstract: A touch panel is integrated into a flat panel display device having a visual display surface with a front polarizer layer, particularly a liquid crystal display device. The touch panel comprises a flexible transparent membrane containing the front polarizer layer and having a first transparent conductive layer on a lower surface of the flexible transparent membrane and a rigid base comprising the flat panel display device and having a second transparent conductive layer on an upper surface of the rigid base. At least one spacer separates the flexible transparent membrane from the rigid base, keeping the first and second transparent conductive layers in spaced-apart facing relationship. A bus bar and tail communicate a signal from the touch panel to the flat panel display device.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: March 19, 2013
    Assignee: American Panel Corporation
    Inventors: William R. Dunn, Daniel E. Molnar, Michael LeCave
  • Patent number: 8395888
    Abstract: A laptop computer includes: a substantially rectangular first chassis accommodating a display section; a substantially rectangular second chassis accommodating an operation control section; and a hinge mechanism coupling one side of the second chassis and one side of the first chassis. Another side parallel to the one side of the first chassis is configured so that only its widthwise central portion in parallel to the one side lays side-by-side to form a substantially flat face with another side of the second chassis when the chassis are closed together. The other side of the first chassis is configured, in a planar view, so that the more it departs from the central portion toward an edge portion in the widthwise direction, the more it comes closer to the one side of the first chassis than to the other side of the second chassis when the chassis are closed together.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: March 12, 2013
    Assignee: Panasonic Corporation
    Inventors: Tetsuya Kawamoto, Akira Iwamoto, Masaru Furujiku, Hitoshi Nakatani, Shintaro Tanaka
  • Patent number: 8395601
    Abstract: A touch sensing system which senses a touch position on a screen, including a light source to emit light; a light deflection unit to deflect the light emitted from the light source, a light guide plate which is arranged opposite to the screen and guides the light deflected by the light deflection unit to different positions on the screen according to an incident position, a light detector to receive at least part of the light reflected in a touch position on the screen, and a controller to calculate the touch position on the screen based on a point of time when the light detector detects the light.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: March 12, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-ho Nho, Yong-dok Cha
  • Patent number: 8390589
    Abstract: Touch screen displays comprising at least one nanostructure-film, and fabrication methods thereof, are discussed. Nanostructure-films may comprise, for example, a network(s) of nanotubes, nanowires, nanoparticles and/or graphene flakes. Such films are preferably at least semi-transparent and relatively flexible, making them well-suited for use in a variety of touch screen applications.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: March 5, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Liangbing Hu, George Gruner
  • Patent number: 8390594
    Abstract: Human-computer interface devices are described in the present disclosure. In one embodiment, among several embodiments, a human-computer interface includes a display device configured to visually display images to a user and a touch sensitive device configured to sense contact with the user. Furthermore, the human-computer interface includes a composite piezoelectric layer positioned between the display device and the touch sensitive device. The composite piezoelectric layer is configured to provide haptic feedback to the user.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: March 5, 2013
    Assignee: Immersion Corporation
    Inventors: Ali Modarres, Juan Manuel Cruz-Hernandez, Danny A. Grant, Christophe Ramstein
  • Publication number: 20130050150
    Abstract: A handheld electronic device includes a casing, a transparent display panel and a transparent touch panel. The transparent display panel is disposed on the casing and has a viewing side and a non-viewing side opposite to the viewing side. The transparent touch panel is disposed on the casing and on the non-viewing side of the transparent display panel. When a user holds the handheld electronic device by a hand, the user can view the hand, which performs touch action on the transparent touch panel, through the transparent display panel and the transparent touch panel.
    Type: Application
    Filed: July 10, 2012
    Publication date: February 28, 2013
    Inventors: Yao-Tsung Chang, Chia-Hsien Li
  • Patent number: 8384687
    Abstract: A manipulation input apparatus includes a panel member, strain gauges, and a controller. The panel member has a front surface functioning as a manipulation input surface to which an input is executed by touch manipulation. The strain gauges detect a load which is applied to the panel member. The controller calculates a position to which a load is applied based on load detection result by the strain gauges. A stick as a convex-shaped structural section is further arranged and integrated in the manipulation input surface of the panel member such that an upward load against the panel member is applied via the stick.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: February 26, 2013
    Assignee: Denso Corporation
    Inventors: Shinsuke Hisatsugu, Masahiro Itoh, Kazunobu Nakanishi
  • Patent number: 8384691
    Abstract: A touch screen sensor includes a visible light transparent substrate and an electrically conductive micropattern disposed on or in the visible light transparent substrate. The micropattern includes a first region micropattern within a touch sensing area and a second region micropattern. The first region micropattern has a first sheet resistance value in a first direction, is visible light transparent, and has at least 90% open area. The second region micropattern has a second sheet resistance value in the first direction. The first sheet resistance value is different from the second sheet resistance value.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: February 26, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Matthew H. Frey, Lijun Zu, Edward S. Hagermoser
  • Patent number: 8373664
    Abstract: An apparatus and method for detecting a presence of a conductive object on a sensor array of a first circuit board using active electronic components of a second circuit board, which is coupled to the first circuit board. The apparatus may include a first circuit board, which includes a sensor array of sensor elements, and a second circuit board, coupled to the first circuit board, including sensing circuitry to measure capacitance on the sensor array of the first circuit board. The method may include measuring a capacitance on the sensor array using the active electronic components of the second circuit board, and processing the measured capacitance.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: February 12, 2013
    Assignee: Cypress Semiconductor Corporation
    Inventor: David G. Wright
  • Patent number: 8373675
    Abstract: A display panel includes an array substrate and an opposite substrate. The array substrate includes a plurality of data lines, a plurality of gate lines, a plurality of first signal lines, a plurality of second signal lines and a plurality of pixels. Each of the pixels includes a pixel electrode and a common electrode insulated from the pixel electrode. The opposite substrate includes a plurality of connecting members. At least one of the connecting members is electrically connected to at least one of the first signal lines and the second signal lines by an externally provided pressure. Thus, when an externally provided pressure is applied to the display panel in order to perform a touch screen function, an alignment of the liquid crystal molecules disposed on the array substrate may not be substantially changed, and a display quality may be improved.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: February 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Jeon, Hyung-Guel Kim
  • Patent number: 8368566
    Abstract: A method and system of an embodiment may include a system comprising a touch screen display panel, and a tactile panel with one or more raised surfaces wherein the touch screen display panel is positioned on top of the tactile panel and the tactile panel creates one or more raised surfaces on the touch screen display panel providing tactile information to a user of the touch screen display panel.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: February 5, 2013
    Assignee: Verizon Patent and Licensing Inc.
    Inventor: George Higa
  • Patent number: 8368657
    Abstract: An input sensor for an electronic device which includes a touch sensor panel, multiple electrodes and a sensor circuit. The electrodes include multiple regional electrodes and multiple local electrodes. Each regional electrode covers a corresponding region of the touch sensor panel and each local electrode includes multiple pads including one pad located within each of the regional electrodes. The electrodes are distributed so that a touch anywhere across the touch sensor panel is detected by at least one regional electrode and at least one local electrode. A sensor circuit determines a value for each of the electrodes indicating relative change, and compares relative values of the electrodes to identify a location of a touch of the touch sensor panel. The regional electrodes are used to determine a region of a touch and the local electrodes are used to determine a more specific touch location within the determined region.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: February 5, 2013
    Assignee: Freescale Semiconductor, Inc.
    Inventor: Rodrigo L. Borras
  • Patent number: 8369663
    Abstract: An optical waveguide for a touch panel which eliminates the need for alignment between the optical waveguide and a lens and which achieves the appropriate emission and reception of light beams, to provide a touch panel using the optical waveguide, and to provide a manufacturing method of the optical waveguide for a touch panel. A total distance (L) which is the sum of a distance from the center of curvature of the first lens portion 30 to the light reflecting surface 60 and a distance from the light reflecting surface 60 to the tip of the second lens portion 50, and the radius (R) of curvature of the second lens portion 50 satisfy the following condition (A): (L/3)?0.5<R<(L/3)+0.5??(A) where L in mm, and R in mm.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: February 5, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Noriyuki Juni, Yusuke Shimizu
  • Patent number: 8363035
    Abstract: An illumination device includes a light incident face onto which light is incident, a light guide plate that has a light emitting face that is disposed adjacent to the light incident face and intersects the light incident face, an illumination light source that is disposed to face the light incident face such that an optical axis thereof faces the light incident face, a position detecting beam source that is disposed to face the light incident face such that an optical axis thereof faces the light incident face, and a wiring substrate that extends along the light incident face and has both the illumination light source and the position detecting beam source mounted thereon.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: January 29, 2013
    Assignee: Epson Imaging Devices Corporation
    Inventor: Daisuke Nakanishi
  • Patent number: 8361263
    Abstract: The invention relates to a device for protecting a display facility, comprising a protective element for covering an image surface of the display facility. As the protective element is designed to be transparent and the retaining means are provided for the exchangeable arrangement of the protective element in front of the image surface, a protective device is provided, which allows the image surface to be examined and is easy to operate.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: January 29, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventor: Martin Hoheisel
  • Patent number: 8363030
    Abstract: A touch panel includes a transparent base board, a mesh-shaped sensor portion formed on the base board and made of piezoelectric materials, a mesh-shaped black matrix formed on the sensor portion; and a pixel portion formed on portions of the base board exposed from the sensor portion and the black matrix for displaying images. When the base board is touched, the sensor portion transforms the pressure on the base board into piezoelectric signals for inputting operating instruction.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: January 29, 2013
    Assignee: Chi Mei Communication Systems, Inc.
    Inventor: Chi-Ming Lee
  • Patent number: 8358288
    Abstract: The present invention relates to a touch-sensor-provided liquid crystal display device (10), the touch-sensor-provided liquid crystal display device (10) including a liquid crystal display panel (20) which includes a plurality of photo sensors (40) for detecting a touched position, and a backlight unit (90) provided on a backside of the liquid crystal display panel (20). The backlight unit (90) emits light at least part of which serves as light (L10) dedicated to sensing which is used for position detection by the plurality of photo sensors (40), and the light (L10) dedicated to sensing travels in a direction (D2) which is different from a direction (D1) toward a main viewer (V) of the liquid crystal display panel (20).
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: January 22, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takashi Kurihara, Yasuhiro Kume, Takaaki Okamoto, Tomoko Nango
  • Patent number: 8358284
    Abstract: The touch screen panel according to the embodiment of the present invention includes a plurality of coupling patterns arranged on a transparent substrate in an island shape, an insulating film formed on the coupling patterns and having contact holes arranged corresponding to end portions of the coupling patterns, and first and second sensing patterns formed on the insulating film. The second sensing pattern includes second sensing cells, and each of the second sensing cells are formed in a region of the insulating film having a pair of adjacent contact holes to be electrically coupled to coupling patterns exposed through the contact holes.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: January 22, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwan-Hee Jeong, Tae-Hyeog Jung, Sung-Ku Kang, Jung-Mok Park, Choon-Hyop Lee, Shawn Kim, Sang-Kook Kim
  • Patent number: 8358901
    Abstract: Various embodiments of wedge-shaped light guide optics are disclosed. One embodiment comprises a wedge-shaped light guide having opposing first and second faces and includes a material having a first refractive index. The first face of the wedge-shaped light guide supports a cladding layer having a second refractive index less than the first refractive index. The optic further comprises a turning film bonded to the cladding layer via an interface layer. The interface layer has a third refractive index matched to the first refractive index.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: January 22, 2013
    Assignee: Microsoft Corporation
    Inventor: Timothy Andrew Large
  • Patent number: 8358887
    Abstract: In an optical waveguide 10 with a light emitting device to be used in the present invention, branched points 16 are sequentially provided in a guiding light direction 17 of a main path 14 and the width of the main path 14 becomes narrower as the main path 14 moves away from a light emitting device 11. The optical waveguide 10 having this structure can reduce a width W1 because there are no portions that correspond spaces (cladding layers) among adjacent branched paths 15. Moreover, the optical waveguide 10 has an excellent optical transmission efficiency, resulting in high intensity of light emitted. Uniformity of the light emitted is equal or more than a conventional optical waveguide 60 with a light emitting device.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: January 22, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Akiko Nagafuji, Yusuke Shimizu
  • Patent number: 8355011
    Abstract: Disclosed herein is a resistive touch screen, including: a transparent film 100 that has a first transparent electrode 110 and is bent when the transparent film 100 is pressed; a dot spacer 200 that is formed on one surface of the first transparent electrode 110 and is configured to include a plurality of projection members 210; a transparent substrate 300 that has a second transparent electrode 310; and an adhesive layer 400 that adheres the edge of the transparent film 100 to the edge of the transparent substrate 300, wherein the side surfaces of the plurality of projection members 210 are closely adhered to each other but when the transparent film 100 is bent, the side surfaces of the plurality of projection members 210 are spaced from each other.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: January 15, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Woon Chun Kim, Yong Soo Oh, Jong Young Lee
  • Patent number: 8350828
    Abstract: An exemplary touch screen apparatus comprises a display screen, a first reflector, a first infrared light source, and an infrared light receiving unit. The display screen includes a display area. The first reflector is disposed outside said display screen and surrounds the display area. The first reflector has a first focal point, and the first infrared light source is disposed on the first focal point. The infrared light receiving unit is capable of receiving the infrared light from the display screen.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: January 8, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chun-Cheng Ko
  • Patent number: 8345015
    Abstract: A sensor apparatus for generating electrical signals which indicate the position or movement of limbs relative to a reference area has a transmitter electrode apparatus, a voltage generator for applying an alternating voltage to the transmitter electrode, a first receiver electrode apparatus, a second receiver electrode apparatus, and a third receiver electrode apparatus, wherein the first, second, and third receiver electrode apparatuses are each connected to high-impedance tapping systems. The first, second, and third receiver electrode apparatuses are preferably each connected to high-impedance inputs of an impedance transformer system, wherein information indicative of a location or movement is obtained on the basis of differences between the electrical events present at the outputs of the respective impedance transformer.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: January 1, 2013
    Assignee: Ident Technology AG
    Inventor: Artem Ivanov
  • Patent number: 8345021
    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; and a plurality of second sensing patterns on the first insulating film and coupled to each other along a second direction crossing the first direction, the second sensing patterns being alternately arranged with the first sensing patterns to not overlap with the first sensing patterns.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: January 1, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae-Hyeog Jung, Jin-Guen Kim
  • Patent number: 8345020
    Abstract: The touch screen panel of the present invention includes first sensing patterns formed on a transparent substrate, a first insulating film formed on the first sensing patterns, second sensing patterns formed on the first insulating film, a plurality of metal patterns disposed on edge regions of the first and second sensing patterns, and a plurality of auxiliary metal patterns formed in the same layer as the metal patterns. Each of the first and second sensing patterns has sensing cells and coupling lines. Each of the coupling lines connects two of the sensing cells. Each of the metal patterns is coupled to the first sensing pattern or to the second sensing pattern, and each of the auxiliary metal patterns being formed on one of the first coupling lines or on one of the second coupling lines.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: January 1, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwan-Hee Jeong, Tae-Hyeog Jung, Sung-Ku Kang, Jung-Mok Park, Choon-Hyop Lee, Shawn Kim, Sang-Kook Kim
  • Patent number: 8339380
    Abstract: An optical operating apparatus includes a soft plate, a transparent supporting plate, a deformable unit, a light source, and an image sensing module. The soft plate is configured for being pressed. The transparent supporting plate is disposed under the soft plate. The deformable unit is disposed between the transparent supporting plate and the soft plate, and has a pattern configuration. The deformable unit deforms as applying an external force on the soft plate and restores after the external force is removed. The light source is configured for providing a light beam to the transparent supporting plate and the deformable unit, and the light beam is reflected by the deformable unit. The image sensing module is arranged on a transmitting path of the light beam reflected by the deformable unit, and a visual field of the image sensing module covers the whole deformable unit. In addition, the present invention also relates to a method for determining operation motion.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: December 25, 2012
    Assignee: Pixart Imaging Inc.
    Inventors: Cho-Yi Lin, Yao-Ching Hsu
  • Patent number: 8330742
    Abstract: A touch sensor device is provided that uses a flexible circuit substrate to provide an improved input device. Specifically, the present invention uses a touch sensor controller affixed to the flexible circuit substrate, which is coupled to a sensor component to provide a flexible, reliable and cost effective touch sensor suitable for a wide variety of applications. In one embodiment the touch sensor uses a flexible circuit substrate that provides relatively high temperature resistance. This allows the touch sensor controller to be affixed using reliable techniques, such as various types of soldering. The sensor component can comprise a relatively low-temperature-resistant substrate that can provide a cost effective solution. Taken together, this embodiment of the touch sensor provides reliability and flexibility at relatively low cost.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: December 11, 2012
    Assignee: Synaptics Incorporated
    Inventors: Joseph Kurth Reynolds, Shawn P. Day
  • Patent number: 8330740
    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: June 16, 2009
    Date of Patent: December 11, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Ku Kang, Tae-Hyeog Jung, Choon-Hyop Lee, Dong-Wook Kang
  • Patent number: 8325160
    Abstract: Systems and methods for detecting temporally overlapping trace events on a touch sensitive device.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: December 4, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Richard L. St. Pierre, Damir Suljic
  • Patent number: 8325158
    Abstract: A method of manufacturing an optical waveguide includes forming a core layer on a first clad layer, forming a second clad layer on the core layer, forming a first groove including at least one inclined surface in the second clad layer and the core layer to be in substantially parallel to and near one end of the second clad layer and one end of the core layer, the at least one inclined surface of the first groove having such an angle that the core layer is exposed when viewed above the second clad layer, forming a second groove including at least one inclined surface in the second clad layer on a inner side of the first groove, forming a separation groove in the clad layers and the core layer in a direction intersecting the first groove, and forming a plurality of cores intersecting the first groove.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: December 4, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazutoshi Yatsuda, Masahiro Igusa, Akira Fujii, Toshihiko Suzuki, Keishi Shimizu, Shigemi Ohtsu
  • Patent number: 8325143
    Abstract: A portable device is provided having a touch sensitive display (100) comprising an active matrix display element (101) and a touch sensitive element (103). The touch sensitive element (103) is disposed on the viewer distal side of the active matrix display element (101) thereby not affecting the display properties. The touch sensitive element (103) comprises a first and second conductive layer (113, 115) each having a plurality of conductors. The conductive layers (113, 115) sandwich a pressure sensitive layer (117) which modifies an electrical conductivity between two conductors of the two conductive layers (113, 115) in response to a pressure point resulting from an applied pressure. Thus, accurate position detection is achieved. The conductors may be aligned with the active matrix and the requirement for calibration may be obviated.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: December 4, 2012
    Assignee: Creator Technology B.V.
    Inventors: Galileo June Adeva Destura, Hjalmar Edzer Ayco Huitema, Martinus Hermanus Wilhelmus Maria Van Delden, Jozef Thomas Martinus Van Beek, Antonius Lucien Adrianus Maria Kemmeren
  • Publication number: 20120287080
    Abstract: An image display device includes: a mechanical shutter unit provided for each of pixels arrayed in a matrix shape and configured to move on a transparent substrate in parallel to the transparent substrate and perform transmission and blocking of light; a pair of control electrodes arranged on both side of the mechanical shutter unit on the transparent substrate; a control electrode driving circuit configured to apply a high voltage or a low voltage to the control electrodes; and a shutter control circuit provided for each of the pixels and configured to apply the high voltage or the low voltage set via a signal line to thereby electrostatically control the operation of the mechanical shutter unit.
    Type: Application
    Filed: May 7, 2012
    Publication date: November 15, 2012
    Inventor: Hajime AKIMOTO
  • Patent number: 8294675
    Abstract: A touchpad assembly for use in an electronic device is provided. The touchpad assembly may include a touchpad frame operative to be placed within an opening in an electronic device frame. The touchpad assembly may include a support plate for supporting a touchpad, and a bracket for receiving a pick button. The support plate and bracket may be manufactured into a same component to increase the rigidity of the touchpad assembly. The pick button may include a varying height to prevent the pick button from deflecting and to make the pick button travel for providing a selection instruction uniform. The pick button may be coupled to the frame using any suitable approach, including using springs connected the ends of the pick button to the frame. The frame may also include pads to muffle the sound of the pick button when it returns to its initial position after having been pressed.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: October 23, 2012
    Assignee: Apple Inc.
    Inventors: Dinesh Mathew, Chris Ligtenberg, Brett William Degner, Thomas W. Wilson, Jr., John Brock
  • Patent number: 8294691
    Abstract: A method and apparatus are provided for detecting activation of a touch panel. The method includes the steps of providing an N by M touch panel including a matrix of N rows of touch elements along a first axis and M columns of touch elements along a second axis, providing N optical beams where a characteristic of each beam of the N beams is different than the corresponding characteristic of any other of the N optical beams, where the summation of a characteristic any first group of the N optical beams is different than the summation the corresponding characteristic of any other N beams and where each respective beam of the N optical beams corresponds to an input of each of the N rows; and summing the characteristic from an output of each of the N rows.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: October 23, 2012
    Assignee: Motorola Mobility LLC
    Inventors: Andrew Cady, Tomo Ishikawa, Robert D. Polak
  • Patent number: 8279201
    Abstract: A touch screen panel having an improved reflectance difference between sensing patterns. The touch screen panel includes a transparent substrate; a plurality of first sensing patterns on the transparent substrate and connected along a first direction; a first insulating layer on the first sensing patterns; and a plurality of second sensing patterns on the first insulating layer and connected along a second direction. The second sensing patterns are alternately disposed with the first sensing patterns and not overlapped with the first sensing patterns. The touch screen panel further includes a plurality of dummy patterns in at least one of first dummy regions between the first sensing patterns and second dummy regions between the second sensing patterns.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: October 2, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Ku Kang, Tae-Hyeog Jung, Jin-Guen Kim, Gi-Min Kim
  • Patent number: 8279476
    Abstract: An input device including a frame in the form of a rectangular parallelepiped body which is supported by a base and which is movable between a first angular position in which an angle of a lower surface of the frame with respect to a horizontal upper surface of the base is smaller than a predetermined threshold value, and a second angular position in which the angle of the lower surface of the frame as seen in the first angular position with respect to the horizontal upper surface of the base is not smaller than the threshold value, a first input portion disposed on an upper surface of the frame as seen when the frame has a horizontal posture in the first angular position, in which a lower surface of the frame is parallel to the horizontal upper surface of the base, a second input portion disposed on a side surface of the frame as seen when the frame has the horizontal posture; and a detecting portion configured to detect an operation by an operator of the input device on at least one of the first and second
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: October 2, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Masahiko Kimura