Magneto-optic Patents (Class 345/86)
  • Patent number: 11934593
    Abstract: A magneto-electrophoretic medium that can be globally and locally addressed and erased. The medium provides a writeable display with no perceivable lag and the ability to write and erase with only minimal power requirements. In particular, the magneto-electrophoretic medium can be erased by providing a subthreshold electric stimulus and supplementing a second non-electric stimulus that disturbs the written state and allows the magneto-electrophoretic particles to return to their original state.
    Type: Grant
    Filed: February 21, 2023
    Date of Patent: March 19, 2024
    Assignee: E Ink Corporation
    Inventors: Crystal Nguyen, Evan Griffith, Seth J. Bishop, Stephen J. Telfer, Kosta Ladavac, Andrew A. Drabek, Sunil Krishna Sainis, Richard J. Paolini, Jr., Samantha Morrill
  • Patent number: 9693475
    Abstract: The present invention discloses a display device. The display device includes a display panel and a module at the back side of the display panel, the module includes a back plate and a mold frame which is provided between the back plate and the display panel, the display device further includes a magnetic device, and the display panel and the mold frame are attached to each other and detached from each other by the magnetic device. In the present invention, the display panel is fixedly attached to the mold frame of the module through a magnetic field, avoiding the problem that the display panel is unable to be detached from the module when they are fixed with a double-sided adhesive, so as to achieve the effect that the display device is frameless while facilitating subsequent maintenance.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: June 27, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD
    Inventors: Wulijibaier Tang, Chunbing Zhang
  • Patent number: 9668678
    Abstract: Described herein is an integrated Faraday modulator and Faraday compensator (IFMC) system. Further described are methods of making an IFMC system, methods of customizing an IFMC system for a specific application, and methods of optimizing an IFMC system for a specific application. Further described is a robust 3D Finite Element Model (FEM) for designing and optimizing an IFMC system. Further described are optical instruments comprising an integrated Faraday modulator and Faraday compensator requiring only one optical crystal.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: June 6, 2017
    Assignee: The University Of Toledo
    Inventors: Brent D. Cameron, Brandon W. Clarke
  • Patent number: 8994635
    Abstract: The invention provides an image display device capable of reducing the transmission delay of a scanning signal. A plurality of scanning signal lines are wired in one pixel circuit row. Pixel circuits of the pixel circuit row are connected to any of the plurality of scanning signal lines.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: March 31, 2015
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Kenta Kajiyama, Takeshi Izumida, Norihiro Nakamura, Naoki Tokuda
  • Patent number: 8907874
    Abstract: Disclosed herein is a display apparatus has a pixel array section including: pixel circuits which are each provided with a driving transistor and an electro-optical device and are laid out to form a matrix; and a draw wire provided in each of the pixel circuits to serve as a wire connecting the driving transistor to a power-supply providing line, wherein the resistance of the draw wire is relatively large in the pixel circuit close to a source applying a power-supply voltage to the power-supply providing line.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: December 9, 2014
    Assignee: Sony Corporation
    Inventors: Takayuki Taneda, Katsuhide Uchino, Yukihito Iida
  • Patent number: 8766887
    Abstract: Described is a device comprising: an array of light modulating elements; and one or more processing elements for controlling each of the light modulating elements, wherein the light modulating elements are arranged in a two-dimensional array, and wherein the one or more processing elements are adapted to skip some bit locations and use other bit locations of bit values when performing multiple bit logical and/or arithmetic operations.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: July 1, 2014
    Assignee: Syndiant, Inc.
    Inventor: Karl M. Guttag
  • Patent number: 8730136
    Abstract: Disclosed herein is a display apparatus has a pixel array section including: pixel circuits which are each provided with a driving transistor and an electro-optical device and are laid out to form a matrix; and a draw wire provided in each of the pixel circuits to serve as a wire connecting the driving transistor to a power-supply providing line, wherein the resistance of the draw wire is relatively large in the pixel circuit close to a source applying a power-supply voltage to the power-supply providing line.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: May 20, 2014
    Assignee: Sony Corporation
    Inventors: Takayuki Taneda, Katsuhide Uchino, Yukihito Iida
  • Patent number: 8711069
    Abstract: A circuit board includes a capacitor and a circuit substrate. The capacitor is mounted on the first insulation layer, and a first conductive layer is disposed between the first and second insulation layers. A plurality of first holes is disposed extended through the first conductive layer, and has a mesh pattern to decrease the spread of vibration generated by the capacitor. A third insulation layer is disposed in the first holes, and the third and first insulation layers may include the same material.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: April 29, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki-Yong Park, Young-Soo Choi, Hyeok-Tae Kwon
  • Patent number: 8674933
    Abstract: An integrated system comprising both imaging and computing capabilities comprises a light valve and a CPU, as well as other functional members for performing computing and imaging.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: March 18, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Wei-Yan Shih, Henry W. Neal, Michael McCormick, Paul Gerard Barker
  • Patent number: 8638206
    Abstract: The invention relates to a method for displaying a pointer on a display surface of a vehicle instrument panel, wherein: a first position (P1) of the pointer on the display surface (1) is computed according to a first measurement carried out by a sensor of the vehicle; the pointer (21) is displayed on the display surface (1) at said first position (P1); a second position (P2) of the pointer on the display surface (1) is computed according to a second measurement carried out by said sensor of the vehicle; the pointer (22) is displayed on the display surface (1) at said second position (P2); the method being characterized in that at least one of the physical characteristics of the pointer (22), displayed at said second position (P2), is modified according to the deviation between the first and second computed positions.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: January 28, 2014
    Assignee: Johnson Controls Technology Company
    Inventor: Tony Boutin
  • Patent number: 8508516
    Abstract: A display device includes a plurality of pixels arranged in a matrix with columns and rows. A source driver provides either analogue or digital image data for the pixels. Each pixel includes a plurality of sub-pixels. Each sub-pixel includes a display components, a memory unit for memorizing gradation display data included in the digital image data provided by the source driver for the display component, and a data switching unit for switching data providing for the display component to either the gradation display data memorized in the memory unit or the analogue image data provided by the source driver.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: August 13, 2013
    Assignee: Chimei Innolux Corporation
    Inventors: Keitaro Yamashita, Yoshikazu Matsui
  • Patent number: 8497821
    Abstract: A display device, including a substrate; an array of pixels arranged in rows and columns forming a light-emitting area over the substrate, each pixel including a first electrode, one or more layers of light-emitting material located over the first electrode, and a second electrode located over the one or more layers of light-emitting material; a first serial buss having a plurality of electrical conductors, each electrical conductor connecting one chiplet in a first set of chiplets to only one other chiplet in the first set in a serial connection, the chiplets being distributed over the substrate in the light-emitting area, each chiplet including one or more store-and-forward circuits for storing and transferring data connected to its corresponding electrical conductor; and a driver circuit in each chiplet for driving at least one pixel in response to data stored in the store-and-forward circuit.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: July 30, 2013
    Assignee: Global OLED Technology LLC
    Inventor: Ronald S. Cok
  • Patent number: 8310442
    Abstract: The invention relates to methods and apparatus for forming images on a display utilizing a control matrix to control the movement of MEMs-based light modulators.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: November 13, 2012
    Assignee: Pixtronix, Inc.
    Inventors: Nesbitt W. Hagood, Stephen Lewis, Abraham McAllister, Roger W. Barton, Richard S. Payne, Jasper Lodewyk Steyn
  • Patent number: 8289249
    Abstract: Provided is a light blocking display device of an electric field driving type, including a barrier layer (150) including a plurality of driving holes (151) and having a first surface and a second surface, driving bodies (101) which are inserted into the driving holes (151) and have charges, a pixel electrode (120) formed on the first surface of the barrier layer (150), and a common electrode (22) formed on the second surface of the barrier layer (150), wherein the area of a cross section parallel to the first and second surfaces of the driving holes (151) is gradually changed from the first surface to the second surface.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: October 16, 2012
    Assignee: Dongjin Semichem Co., Ltd.
    Inventor: Chun-Hyuk Lee
  • Patent number: 8237643
    Abstract: A driving method and a transreflective display apparatus are provided herein. In the driving method, a plurality of voltage-to-transparency curves are provided. An ambient light intensity of the display apparatus is detected for determining a display mode, wherein the display mode is either a transmissive mode or a reflective mode. Next, one of the voltage-to-transparency curves is selected according to the display mode and the ambient light intensity for driving the display apparatus. Therefore, by referring a proper voltage-to-transparency curve to drive the display apparatus, the display quality of the display apparatus can be enhanced.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: August 7, 2012
    Assignee: Himax Technologies Limited
    Inventors: Biing-Seng Wu, Lin-Kai Bu, Ying-Lieh Chen
  • Patent number: 8237749
    Abstract: An image display device and a method for correcting a display characteristic thereof are provided. The image display device includes a composite color luminance determination unit which determines luminance of a composite color using luminance of a neutral color and luminance of a pure chromatic color, a display unit which displays an image signal using the luminance of the neutral color and the luminance of the pure chromatic color and the determined luminance of the composite color, a display characteristic measurement unit which measures a display characteristic parameter from the displayed image signal, and a display characteristic correction unit which corrects a display characteristic according to a result of comparing the measured display characteristic parameter and a preset target value. Accordingly, an accurate gamma correction can be performed.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: August 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-hee Kim, Jae-young Choi
  • Patent number: 8194056
    Abstract: Another embodiment has a method of driving a display device including an array of MEMS elements is disclosed. The MEMS elements are characterized by a preferred set of drive potential differences including preferred positive and preferred negative actuation potential differences, preferred positive and preferred negative hold potential differences, and a preferred release potential difference, where the preferred set of drive potential differences is symmetric about a voltage differing from 0V by an offset ?V. Another embodiment has a reduced set of supply voltages are used, while maintaining the charge balancing effects of applying potential differences of opposite polarity without visible artifacts.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: June 5, 2012
    Assignee: QUALCOMM MEMS Technologies Inc.
    Inventor: Manish Kothari
  • Patent number: 8159426
    Abstract: Organic light emitting display (OLED) devices and methods of rendering image of an OLED device. A pixel of the OLED device includes a first sub-pixel corresponding to a first color, comprising a first pixel electrode and a second sub-pixel corresponding to a second color, comprising a second pixel electrode. A portion of the second pixel electrode is operatively associated with a portion of the first sub-pixel, such that activation of second pixel electrode activates both the first sub-pixel and said portion of the first sub-pixel independent of activation of the first pixel electrode.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: April 17, 2012
    Assignee: Chimei Innolux Corporation
    Inventors: Shih-Chang Chang, Du-Zen Peng
  • Patent number: 8154789
    Abstract: The electronic paper display device may include a first electrode; a dielectric layer that is disposed on the first electrode and has a plurality of cells defined by a barrier; a second electrode that faces the dielectric layer; and electronic balls that are disposed in the inside of the respective cells to display an image according to the electric fields applied to the first and second electrodes wherein a side of the barrier is formed in a recessed round shape.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: April 10, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hye Yeon Cha, Young Soo Oh, Sang Moon Lee, Jeong Bok Kwak, Hwan Soo Lee
  • Patent number: 8106860
    Abstract: A composite display may include a paddle configured to sweep out an area and a plurality of pixel elements mounted on the paddle. Selectively activating one or more of the plurality of pixel elements while the paddle sweeps the area may cause at least a portion of an image to be rendered. A characteristic of at least one pixel element of the plurality of pixel elements that is associated with balancing luminance across the composite display associated with the paddle may be based, at least in part, on a radial distance of the one pixel element from an axis of rotation of the paddle.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: January 31, 2012
    Assignee: Qualcomm Mems Technologies, Inc.
    Inventor: Clarence Chui
  • Patent number: 8102363
    Abstract: In at least one embodiment, a driving method of an electrophoresis display device includes an image-erasing step in which an old image displayed on the displaying section of the electrophoresis display device is erased. The image-erasing step of the driving method of the electrophoresis display device further includes a first image-erasing sub step of displaying a first gradation in each of the pixels of a first area and displaying a second gradation in each of the pixels of a second area; and a second image-erasing sub step of displaying the second gradation in each of the pixels of the first area and displaying the first gradation in each of the pixels of the second area.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: January 24, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Hiroshi Hirayama
  • Patent number: 8089431
    Abstract: The present invention provides a various methods, systems and devices for controlling light modulating elements and/or spatial light modulators. In some embodiments of the present invention, a recursive feedback method is used to control light modulating elements and/or spatial light modulators.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: January 3, 2012
    Assignee: Syndiant, Inc.
    Inventors: Karl M. Guttag, Alvin Guttag
  • Patent number: 8063878
    Abstract: An apparatus and method related to rendering substantially permanent aspects of electronic paper.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: November 22, 2011
    Assignee: The Invention Science Fund I, LLC
    Inventors: Edward K. Y. Jung, Royce A. Levien, Mark A. Malamud, John D. Rinaldo, Jr., Clarence T. Tegreene
  • Patent number: 8040362
    Abstract: An output enable signal transformation device for a gate driver in an LCD device includes a reception terminal coupled to a timing generator of the LCD device for receiving an enable synchronization signal, an enable clock signal and a plurality of enable control signals generated by the timing generator, a shift register module coupled to the reception terminal for shifting the enable synchronization signal according to the enable clock signal, a multiplexer module coupled to the shift register module and the timing generator for generating a plurality of output enable signals according to the enable synchronization signal and the plurality of enable control signals, and an output terminal coupled to the multiplexer module and a logic circuit of the gate driver for outputting the plurality of output enable signals to the logic circuit.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: October 18, 2011
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Yu-Tsung Hu, Ching-Wen Kong
  • Patent number: 8020326
    Abstract: Composite magneto-optical elements with unique shapes and architectures comprising a magnetic component and a colored component. These magneto-optical elements can also be manufactured by a small variety of low-cost processes resulting in their use in a variety of applications including low-cost, large-format, reflective display devices.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: September 20, 2011
    Assignee: TRED Displays Corporation
    Inventors: Charles O. Edwards, James Caruso
  • Patent number: 8018410
    Abstract: An improved electric paper structure is provided. A ground plane assembly having discontinuous grounding elements is used to render electric paper applications more flexible.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: September 13, 2011
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Gregory P. Schmitz, Michael B. Heaney
  • Patent number: 7999773
    Abstract: A display apparatus and a manufacturing method thereof which allow a component to be replaced and repaired simply, rapidly, and stably are provided. The display apparatus comprises a main body which accommodates a light source part, and comprises a display element which displays an image using light emitted from the light source part; an element panel which accommodates the display element; a front cover which is coupled to the main body and provided with a panel mounting part to which the element panel is detachably coupled; and an element driving board which is coupled to the front cover, is opposite to the main body, interposes the front cover between the element driving board and the main body, and is electrically connected with the display element.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: August 16, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-hak Moon, Kyoung-choul Jang, Byung-jo Kang
  • Patent number: 7916103
    Abstract: Systems and methods of displaying an end-of-life image on an electronic display are disclosed. An end-of-life image is displayed on a MEMS display device in the presence of sufficient water vapor and without continued activation of the display. The image can he displayed in response to user input, in response to detection of a predefined level of water vapor within the display package, according to a prestored lifetime of the device, or according to the natural expiration of the lifetime of the display device and packaging.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: March 29, 2011
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventor: Lauren Palmateer
  • Patent number: 7903058
    Abstract: A circuit and method for monitoring the forward voltage for a plurality of LEDs in a battery powered device so that the gain in the LED driver circuit can be switched at a point that optimizes the energy provided by the battery. The invention provides for sensing each LED's voltage, VLED, and determining the maximum forward voltage, VLEDmax, between the plurality of LEDs. The invention uses the knowledge of VLEDmax in conjunction with VIN, converter output resistance and LED current, and current source/sink minimum headroom to switch from an initial gain to some higher gain just before the current sinks/sources would drop out, or from a higher gain to a lower gain in the event of the battery voltage going back to a voltage close to its initial value after being momentarily pulled down by a heavy load.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: March 8, 2011
    Assignee: National Semiconductor Corporation
    Inventors: Florence Jacquet, William J. McIntyre, Damian Swank, Nathanael Griesert
  • Patent number: 7855711
    Abstract: Electric paper with an anisotropic conductive island writing and viewing surface includes a ground plane, a media layer that is formed adjacent to the ground plane and that includes a plurality of microencapsulated multi-chromal particles, and a conductive layer formed adjacent to the media layer, wherein the conductive layer includes a plurality of embedded conductive fibers that form an anisotropic conductive island surface for writing and viewing images.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: December 21, 2010
    Assignee: Palo Alto Research Center Incorporated
    Inventor: Gregory P. Schmitz
  • Patent number: 7701412
    Abstract: A scalable laser scanning angle apparatus and method of scaling a scanning angle using MEMS devices and elliptical mirrors includes disposing a first scanner at one focal point of an elliptical mirror and scanning the emitted light beam in a first direction at a first scanning angle toward a concave surface of the elliptical mirror such that the scanned light beam is directed toward the second focal point of the elliptical mirror, and scanning the light beam from the concave surface of the elliptical mirror in a second direction at a second scanning angle using a second scanner, wherein the second scanner outputs the light beam across a system scanning angle which corresponds to a combination of the first scanning angle and the second scanning angle. The scanning angle is scalable by repeatedly scanning the light beam at corresponding focal points of a predetermined number of elliptical mirrors, wherein the total scanning angle is scaled by a multiple of a number of times the light beam is scanned.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: April 20, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Ju-Hyun Lee, Youngchul Ko, Plisoo Ahn, Jinwoo Cho, Serafirnovich Pavel
  • Patent number: 7663582
    Abstract: An exemplary embodiment for an electric paper application is provided. The embodiment utilizes a disordered percolation layer for forming conductive islands on electric paper. The percolation layer is comprised of a disordered mixture of conductive and non-conductive particles that are attached to a non-conductive surface to provide conductive islands therein so that the electric charge can be appropriately held near the media plane of the electric paper.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: February 16, 2010
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Gregory P. Schmitz, Michael B. Heaney
  • Patent number: 7643005
    Abstract: An apparatus and method to control the writing on electronic paper.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: January 5, 2010
    Assignee: Searete, LLC
    Inventors: Edward K. Y. Jung, Royce A. Levien, Mark A. Malamud, Kenneth P. Paley, John D. Rinaldo, Jr., Clarence T. Tegreene
  • Patent number: 7626581
    Abstract: Embodiments of an exemplary MEMS interferometric modulator comprise a movable layer and a fixed layer separated by an air gap. A driving scheme employs row/column actuation protocols which maintain voltages to the MEMS interferometric modulator that are above or below the voltage range necessary to place the MEMS interferometric modulator within a “hysteresis window” or “stability window.” Stable operation of the MEMS interferometric modulator is achieved by selecting mechanical design features that optimize the actuation and release times of the interferometric modulator. Some of the features affecting the release and actuation times include altering post spacing, altering internal stress or tension of the movable layer, altering the thickness or composition of the movable layer, altering the bulkiness of the tethers, perforating the movable layer and providing vias in the fixed layer.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: December 1, 2009
    Assignee: IDC, LLC
    Inventors: Clarence Chui, Manish Kothari
  • Patent number: 7592988
    Abstract: A display device is provided that includes a display panel having a light-emitting unit for emitting light according to predetermined display data, an elongated optical waveguide unit which guides the light incident from the light-emitting unit and has a core layer and an addressing unit for selecting the light from the light waveguide unit according to the predetermined display data. The core layer is composed of light scattering liquid crystal, and the addressing unit allows the light to be emitted from a predetermined part of the optical waveguide unit by using the light scattering operation of the light scattering liquid crystal.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: September 22, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Katase
  • Patent number: 7561140
    Abstract: Provided is a microcapsule magnetic migration display including microcapsules arrayed on a substrate. A dispersion liquid containing an oily dispersion medium having two components of light-absorptive magnetic particles and light-reflective non-magnetic particles dispersed therein is encapsulated in the microcapsules, and positions of the two components are allowed to vertically migrate by a magnetic field. The dispersion liquid is one or two or more kinds of oily liquids having a flash point of 70° C. or more, a volume density at 15° C. of 0.75 to 0.91 g/cm3, and a dynamic viscosity at 40° C. of 7 mm2/S or less, is added with 0.5 to 8.0 wt % of non-ionic surfactant with an HLB value of 5.0 or less, and is added with solid particles having a true specific gravity exceeding 1.0 and a particle diameter of 0.1 to 30 ?m, thereby adjusting the volume density thereof at 15° C. to 1.0 to 1.2 g/cm3.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: July 14, 2009
    Assignee: Japan Capsular Products, Inc.
    Inventor: Yasuyuki Kanno
  • Patent number: 7535434
    Abstract: Systems and methods are disclosed for providing a more robust flat panel display by using the Faraday effect to control light emission from a solid state material so as to form two-dimensional or three-dimensional images. Flux tubes can be configured to define a two dimensional array. Each flux tube is somewhat analogous to a single bubble of a magnetic bubble memory and can define a pixel. At least some aspect of light transmitted through a flux tube can be varied thereby, so as to facilitate the formation of an image.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: May 19, 2009
    Assignee: The Boeing Company
    Inventors: Robert J. Atmur, Jeffrey H. Hunt
  • Patent number: 7527998
    Abstract: Methods and apparatus are provided for controlling a depth of a cavity between two layers of a light modulating device. A method of making a light modulating device includes providing a substrate, forming a sacrificial layer over at least a portion of the substrate, forming a reflective layer over at least a portion of the sacrificial layer, and forming one or more flexure controllers over the substrate, the flexure controllers configured so as to operably support the reflective layer and to form cavities, upon removal of the sacrificial layer, of a depth measurably different than the thickness of the sacrificial layer, wherein the depth is measured perpendicular to the substrate.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: May 5, 2009
    Assignee: Qualcomm Mems Technologies, Inc.
    Inventors: Ming-Hau Tung, Lior Kogut
  • Patent number: 7495651
    Abstract: The electrophoretic display panel (1) for displaying pictures has drive means (100) which are arranged for controlling the potential difference of each picture element (2) to be a picture potential difference having a picture value and an associated picture duration representing a picture energy for enabling the particles (6) to occupy one of the positions for displaying one of the pictures, subsequently to be an inter-picture potential difference having an inter-picture value and an associated inter-picture duration representing an inter-picture energy and subsequently to be a subsequent picture potential difference for enabling the particles (6) to occupy one of the positions for displaying a subsequent one of the pictures.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: February 24, 2009
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Guofu Zhou, Mark Thomas Johnson
  • Patent number: 7495681
    Abstract: A resolution detection method for an electronic display device. The method first receives a line rate, a frame rate, and a horizontal total of an electronic display device to calculate candidate resolutions. A horizontal display of the electronic display device is then received. Next, a horizontal blank is calculated according to the line rate and the horizontal display. An adjustment method for application to the electronic display device is determined according to the horizontal blank. Finally, an optimum resolution is selected from the candidate resolutions according to the determined adjustment method.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: February 24, 2009
    Assignee: Qisda Corporation
    Inventors: Yun-Wen Liu, Min-Jye Chen
  • Patent number: 7486263
    Abstract: An electronic device includes a first member, and a second member which includes segments. At least one of the first member and the second member is movable relative to the other of the first member and the second member among a plurality of distinct positions as a result of differing voltage states of the segments.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: February 3, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E. Anderson, Eric T. Martin, Andrew L. Van Brocklin
  • Patent number: 7463226
    Abstract: A display device according to this invention includes: a display panel (2) having plural pixels configured to display image information; plural driver circuits (10) configured to drive the plural pixels according to a video signal indicative of the image information which is inputted externally, the video signal being a radio signal; and plural wireless input portions (22) each configured to obtain a part of the video signal from the radio signal, wherein the plural driver circuits (10) are each configured to drive a part of the plural pixels according to the part of the video signal obtained by a respective one of the wireless input portions (22).
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: December 9, 2008
    Assignee: Panasonic Corporation
    Inventor: Naohide Wakita
  • Publication number: 20080199667
    Abstract: Provided is an active reflector that transmits or reflects light by being controlled by a magnetic field and a magnetic display panel that employs the active reflector. The active reflector includes a magnetic material layer in which magnetic particles are buried in a transparent insulating medium, and the magnetic material layer has an optical incident surface having an array of hybrid curved surfaces which include a central surface having a convex parabolic shape and an axis of symmetry and a peripheral surface having a focal point on the axis of symmetry of the central surface and a concave parabolic shape extending from the central surface.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 21, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sung Nae CHO
  • Publication number: 20080074365
    Abstract: Reflective, low-cost display pixels and displays incorporating magneto-optical elements wherein an externally applied magnetic field is perpendicular to an axis of rotation of the magneto-optical elements and parallel to a viewing plane of a display made from these elements. The display elements have a restricted rotation about their long axis which can be actuated by an external magnetic field to produce a bistable, electronically writable image. In addition, architectural modifications to this arrangement can be made such that the power required to write the image to such a display is decreased, overall display efficiency is increased and cross-talk between pixels is nearly eliminated.
    Type: Application
    Filed: September 24, 2007
    Publication date: March 27, 2008
    Applicant: TRED Displays Corporation
    Inventors: Charles O. Edwards, James Caruso
  • Patent number: 7292222
    Abstract: An electrophoretic display and a method of manufacturing the electrophoretic display are provided. The electrophoretic display includes an lower electrode formed on an under layer, an lower electrode protection layer formed on the lower electrode, an insulating template formed on the lower electrode protection layer and having a plurality of holes of smaller size than the wavelength of visible rays region, a dielectric fluid filling the holes and having a color, a plurality of charged particles suspended in the dielectric fluid filling each of the plurality of holes having a color different from the color of the dielectric fluid, and an upper electrode formed on the insulating template in sequential order. Accordingly, a problem of agglomeration of the charged particles can be solved by the insulating template having holes of smaller size than the wavelength of visible rays region, and thus a reliable electrophoretic display emitting light of one color or natural colors is achieved.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: November 6, 2007
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seong Deok Ahn, Kyung Soo Suh, Seung Youl Kang, Yong Eui Lee, Chul Am Kim, Meyoung Ju Joung, Mi Kyung Kim, Gun Hong Lee
  • Patent number: 7199773
    Abstract: A magnetic display panel includes strips of first electrodes arranged in a first direction on an inner surface of a rear plate. Strips of second electrodes are arranged in a second direction, perpendicular to the first electrodes, and insulated from the first electrodes. Pixel electrodes are installed on each of the intersections of the first and second electrodes, and each has a spiral magnetic field producing unit electrically connected to the first and second electrodes. A magnetic film on the pixel electrodes has a magnetic gap through which a magnetic field produced by the pixel electrodes leaks. A magnetic fluid has a predetermined thickness on the inner surface of the rear plate. Such a display panel can provide moving pictures because of its improved responsivity, and, particularly, is easily fabricated at a low cost in large quantities because of its simple structure. Furthermore, the display panel is advantageous in building super-large display devices based on multiple integration.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: April 3, 2007
    Assignee: Hongik University Industry-Academia Cooperation Foundation
    Inventor: Jong Wook Seo
  • Patent number: 7170470
    Abstract: The invention includes providing a display by moving a colorant particle, having an electric charge, inside a channel of a body in a direction that is substantially parallel to a direction of extension of the channel and a direction of incoming illumination rays. The colorant particle can be moved between a position at a bottom of the channel and at a top of the channel by the force of an electric field generated by a charge at the bottom of the channel. The invention can be applied to an analog dot display as well as a digital dot display. The invention covers methods of manufacturing the displays discussed above. The invention is also not limited to covering displays, and also covers at least print media, wherein colorant particles are locked at appropriate locations within the channels, either temporarily or permanently.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: January 30, 2007
    Assignee: Brother International Corporation
    Inventor: Mark Darty
  • Patent number: 7133183
    Abstract: Due to an ever growing shortage of conventional energy sources, there is an increasingly intense interest in harnessing solar energy. The instant invention can contribute to the goal of achieving environmentally clean solar energy to be competitive with conventional energy sources. Method and apparatus are presented for coupling to a transparent sheet with an embedded array of preformed or formable mirrored micro-balls for use in a solar energy concentrator, and functionally similar applications such as optical switches and solar rocket assist. Mirrored micro-balls and particulate formable mirrors in cells are covered with a thin spherical shell of lubricating liquid so that they are free to rotate in an almost frictionless encapsulation in the sheet. Induced polarization electric or magnetic dipoles in the mirrors provide a method of controlling the alignment of the mirrored balls. Electrophoretically and magnetophoretically forming mirrors in situ on a rigid surface in a rotatable cell are also disclosed.
    Type: Grant
    Filed: March 6, 2004
    Date of Patent: November 7, 2006
    Inventor: Mario Rabinowitz
  • Patent number: 7130102
    Abstract: This invention deals with the broad general concept for dynamic reflection, illumination and direct image projection. A mini-optics reflection and focussing system is presented that ranges from interior illumination, to exterior illumination, to large scale space based illumination, to ordinary and to telescopic image formation. It can be used both as a source of illumination, and to project images, figures, and the written word. This system has broad applications such as dynamic full color displays. Its use of a novel induced dipole coupling for rotation of planar mirrors lets it operate with greater simplicity and efficiency than other display devices. Furthermore in its capacity as a high altitude active reflector of solar radiation, it can be utilized to supply illumination, energy, and provide climate control.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: October 31, 2006
    Inventor: Mario Rabinowitz
  • Patent number: 7116295
    Abstract: A method and a system for testing a plurality of driver circuits of an AMOLED before OLEDs are formed are provided. Each driver circuit includes a terminal, which is connected to an OLED after the OLED is formed, and is connected to a test element to form an electrical loop during the test. The system selects one specific driver circuit to test. The method and the system measure the value of a current signal flowing through the test element, and then analyze it to determine the status of the driver circuit. The said steps executed repeatedly, all driver circuits of the AMOLED are tested efficiently and precisely.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: October 3, 2006
    Assignee: TPO Displays Corp.
    Inventor: An Shih