Particle Suspensions (e.g., Electrophoretic) Patents (Class 345/107)
  • Patent number: 10067398
    Abstract: An electrophoretic light attenuator comprises a cell including a first substrate (90), a second substrate (90) spaced apart from the first substrate, a layer arranged between the substrates and containing an electrophoretic ink (30), and a monolayer of closely packed protrusions (2) projecting into the electrophoretic ink (30) and arranged adjacent a surface of the second substrate. The protrusions (2) have surfaces defining a plurality of depressions between adjacent protrusions. The ink (30) includes charged particles (11) of at least one type, the particles being responsive to an electric field applied to the cell to move between a first extreme light state, in which the particles (11) are maximally spread within the cell so as to lie in the path of light through the cell and thus strongly attenuate light transmitted from one substrate to the opposite substrate, and a second extreme light state, in which the particles (11) are maximally concentrated within the depressions so as to let light be transmitted.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: September 4, 2018
    Assignee: Vlyte Innovations Limited
    Inventor: Donal O'Keeffe
  • Patent number: 10062335
    Abstract: This application describes techniques for erasing (e.g., smudging, rendering illegible, etc.) images that are presented on display mediums, such as electronic-paper displays. Electronic-paper displays include a layer of electronic ink comprising charged particles suspended in a fluid. When a voltage differential is created across the reading surface, the charged colored particles may rise to the reading surface, retreat to the opposite surface, or suspend somewhere there between, thereby creating a visible image. In some instances described herein, a common electrode is partitioned into at least two sets of elements interleaved with one another. To erase an image, a voltage differential may be driven between these two sets of elements, creating an in-plane electrical field that erases the image.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: August 28, 2018
    Assignee: Amazon Technologies, Inc.
    Inventor: Jerry Yee-Ming Chung
  • Patent number: 10062322
    Abstract: The technology disclosed here integrates a light sensor with a dual-mode display, thus increasing the size of the dual-mode display. The light sensor can be a camera, an ambient sensor, a proximity sensor, etc. The light sensor is placed beneath the dual-mode display and can detect incoming light while the dual-mode display is displaying a display image. The dual-mode display and the light sensor can operate at the same time. For example, a camera placed beneath the dual-mode display can record an image of the environment, while at the same time the dual-mode display is showing the display image. Further, multiple light sensors can be placed at various locations beneath the dual-mode display.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: August 28, 2018
    Assignee: ESSENTIAL PRODUCTS, INC.
    Inventors: David John Evans, V, Xinrui Jiang, Andrew E. Rubin, Matthew Hershenson, Xiaoyu Miao, Joseph Anthony Tate, Jason Sean Gagne-Keats
  • Patent number: 10054561
    Abstract: An ionic conductance measuring instrument comprising a voltage/current test device and a test electrode, in which the test electrode comprises a bulk substrate with four linearly arranged through holes, four Pt wires inserted in the through holes respectively with their upper ends exposed outside of the bulk and their downside ends hidden inside of the bulk; the four axis of the Pt wire is in the same plane and parallel with each other; the gap distance between the mentioned Pt wire and the bulk substrate is 0.1-2 mm, and is filled with ionic conductive polymer.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: August 21, 2018
    Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Gongquan Sun, Zhangxun Xia, Suli Wang, Xudong Fu
  • Patent number: 10050562
    Abstract: Provided are a triboelectric energy generator using a control of a dipole polarization direction and a method of fabricating the same. The present invention controls a direction of a charging property generated by friction through a control of a dipole polarization using a ferroelectric or piezoelectric property of a material, and by using this control, the present invention is related to a triboelectric energy generator in a disk type in which a frictional charging material is slidable on a thin film only using control of a dipole polarization without need of an additional patterning process and output power is improved.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: August 14, 2018
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Sang Woo Kim, Wan Chul Seung, Ju-Hyuck Lee, Keun Young Lee, Sang Hyun Kim, Hong Joon Yoon
  • Patent number: 10048486
    Abstract: A display device includes a first support plate. A pixel region is formed on the first support plate and a reflective layer is positioned in the pixel region. The reflective layer includes a specular reflector and a diffuse reflector.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: August 14, 2018
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Steven Ramos Carneiro, Tulasi Sridhar Reddy Guntaka, Henricus Petronella Maria Derckx, Pavel Novoselov
  • Patent number: 10042504
    Abstract: In particular embodiments, a method includes receiving a signal from an electrode of a touch sensor that senses a charge displacement, based on the signal, in order to detect the contact or separation. The method further includes detecting a contact or separation input to the touch sensor.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: August 7, 2018
    Assignee: Samsung Electronics Company, Ltd.
    Inventors: Ernest Rehmi Post, Olivier Bau, Iliya Tsekov, Sajid Sadi, Mike Digman, Vatche Attarian, Sergi Consul, Cody Wortham
  • Patent number: 10043456
    Abstract: A display device includes a first support plate and a second support plate opposite the first support plate. A plurality of pixel regions are positioned between the first support plate and the second support plate and arranged in a plurality of rows and a plurality of columns. A controller is configured to: determine that a measured operating condition value for a first performance property of the display device is outside an operating range for the first performance property; adjust a first value for a first device parameter to an adjusted first value based on the measured operating condition value; and adjust a second value for a second device parameter to an adjusted second value based on the measured operating condition value.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: August 7, 2018
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventor: Petrus Maria de Greef
  • Patent number: 10037735
    Abstract: An active matrix electro-optic display (100) includes capacitor electrodes (110, 112) associated with the pixel electrodes (106, 108) so that the pixel electrode and its associated capacitor electrode form a capacitor. The display (100) also includes switching means (120) having one position in which each capacitor electrode (110, 112) is electrically connected to the light-transmissive front electrode (102) of the display (100) and a second position in which each capacitor electrode (110, 112) is electrically connected to a voltage source having a voltage independent of the voltage on the light-transmissive electrode.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: July 31, 2018
    Assignee: E Ink Corporation
    Inventor: Karl R. Amundson
  • Patent number: 10032419
    Abstract: The present invention is directed to driving methods for driving a color display device which can display high quality color states. The display device utilizes an electrophoretic fluid which comprises three types of pigment particles having different optical characteristics.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: July 24, 2018
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Ming Wang
  • Patent number: 10013132
    Abstract: In particular embodiments, a method includes receiving a signal from an electrode of a touch sensor that senses a charge displacement, based on the signal, in order to detect the contact or separation. The method further includes detecting a contact or separation input to the touch sensor.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: July 3, 2018
    Assignee: Samsung Electronics Company, Ltd.
    Inventors: Ernest Rehmi Post, Olivier Bau, Iliya Tsekov, Sajid Sadi, Mike Digman, Vatche Attarian, Sergi Consul, Cody Wortham
  • Patent number: 10002579
    Abstract: According to one embodiment, a first Pixel is connected to a first source line via a first switch included in a first Pixel and the second Pixel is connected to a second source line via a second switch included in the second Pixel. The first Pixel has a first memory, and the second Pixel has a second memory. A first potential line supplies data 1 and a second potential line supplies data 0. The first and second Pixels can store data 1 or 0, when a gate signal is applied to a gate line and the first and second switches are turned on. In this case, in order to store the same data (1 or 0) in the first and second memories, the first and second source lines should be applied different revel signals each other.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: June 19, 2018
    Assignee: Japan Display Inc.
    Inventor: Takanori Tsunashima
  • Patent number: 9997742
    Abstract: A method of manufacturing an organic EL display device includes disposing a second base material that is disposed to face a first base material having a display region and including a TFT layer on a supporting substrate that supports the second base material, disposing the first base material on a side opposite to a side where the supporting substrate of the second base material is disposed, disposing a dam material that surrounds the display region between the first base material and the second base material, filling an inside of the dam material with a filling material between the first base material and the second base material, disposing an auxiliary wall to be separated from an outside of the dam material between the first base material and the second base material, and cutting the second base material through the supporting substrate between the dam material and the auxiliary wall.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: June 12, 2018
    Assignee: Japan Display Inc.
    Inventor: Masumi Nishimura
  • Patent number: 9996195
    Abstract: A touch screen electro-optic display is arranged such that upon a touch being detected on the display surface, the display surface surrounding the touch “blinks” by being driven to a different optical state, then back to its original state. A second method uses a display having a pen or stylus which can draw lines upon the display. A first line segment is detected and its area updated using a first drive scheme having short waveforms. The area of a second line segment is updated using the first drive scheme. Thereafter, the areas of both line segments are updated using a second drive scheme different from the first drive scheme.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: June 12, 2018
    Assignee: E Ink Corporation
    Inventors: Theodore A. Sjodin, Yuval Ben-Dov, Kenneth R. Crounse, Jason Lin, Karl Raymond Amundson, Michael Patrick Almon, Hugh M. Enxing, Timothy J. O'Malley
  • Patent number: 9984634
    Abstract: A method of displaying color data on an electronic paper display is displayed. The method comprises providing an electronic paper display having display pixels at a display pixel pitch and providing a color filter for said display. Said color filter comprises groups of colored filter elements, each said colored filter element having one of a plurality of different colors, wherein each group of colored filter elements defines a pattern of said colored filter elements. In said pattern a colored filter element overlies an integral number, n, of said display pixels, where n is two or more. The method also comprises providing color image data defining a plurality of color image planes, one for each of said different colors. Data in a said color image plane comprises image pixel data defining values for image pixels corresponding to said display pixels.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: May 29, 2018
    Assignee: Flexenable Limited
    Inventor: Will Reeves
  • Patent number: 9977308
    Abstract: The present invention relates to a light-transmissive element (106, 200, 500) which has light controlling properties. The light-transmissive element (106, 200, 500) comprises a plurality of first particles (206) and a plurality of second particles (208). The first particles (206) are configured to control the transmission of light of a first wavelength range being infrared light. The second particles (208) are configured to control the transmission of light of a second wavelength range being visible light. The first (206) and second particles (208) may independently be redistributed in an enclosure (207) enclosing the particles. Redistribution is enabled by an applied electric field which causes the particles to move in the enclosure (207). Thus, transmission of light of the first wavelength range and transmission of light of the second wavelength range is thereby independently controlled by the first (206) and second particles (208) respectively.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: May 22, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Kars-Michiel Hubert Lenssen, Marius Leendert Borst
  • Patent number: 9965049
    Abstract: A display apparatus is provided. The apparatus includes: a user interface configured to adjust a friction force between the user interface and a pen; and a controller configured to, in response to a pen being touched and moved on the user interface, control the user interface to adjust the friction force based on an input mode of the pen.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: May 8, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Soo-jung Kim, Sang-hyun Park
  • Patent number: 9961950
    Abstract: A necktie with integrated, individually addressable, multi-colored light emitting diode (LED) modules arranged in a rectangular matrix format. These LED modules are connected together and controlled by means of an onboard microcontroller. Functionality is included in order to facilitate the installation of custom light patterns by the user after manufacture. The device includes an onboard wireless communication module in order to facilitate communication with an external control interface, such as an application on a smartphone, so the light patterns displayed by the LEDs may be modified based on user input.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: May 8, 2018
    Inventor: Darius Kuddo
  • Patent number: 9958752
    Abstract: An electrophoresis display device includes an element substrate (first substrate); a counter substrate (second substrate) arranged facing the element substrate; an electrophoresis layer arranged between the element substrate and the counter substrate and which includes a dispersion liquid which contains electrophoretic particles and a dispersion medium in which the electrophoretic particles are dispersed; a dividing wall arranged to partition the electrophoresis layer into a plurality of cells; and a sealing layer arranged between the counter substrate and the dividing wall. The sealing layer has a modulus of elasticity at 25° C. of 1 MPa or more to 100 MPa or less.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: May 1, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Tadashi Yamada, Kiyoshi Nakamura, Saichi Hirabayashi, Nobukazu Nagae, Toru Katakabe
  • Patent number: 9953589
    Abstract: An electrowetting display device may comprise pixels that include: a hydrophobic layer portion disposed on a first electrode, electrowetting fluids overlying the hydrophobic layer portion, and a thin film transistor (TFT) that is in electrical contact with the first electrode. The electrowetting display device also comprises a display control circuit in electrical contact with a drain or a source of the TFT of each of the pixels to provide a drive voltage to the drain or the source of the TFT of each of the pixels, and a reset control circuit in electrical contact with the drain or the source of the TFT of each of the pixels to provide a reset voltage pulse to the drain or the source of the TFT of each of the pixels. A magnitude of the reset voltage pulse may be based, at least in part, on the drive voltage.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: April 24, 2018
    Assignee: AMAZON TECHNOLOGIES, INC
    Inventors: Pavel Novoselov, Steven Ramos Carneiro, Henricus Petronella Maria Derckx, Tulasi Sridhar Reddy Guntaka
  • Patent number: 9922603
    Abstract: The invention relates to electrophoretic layers containing at least five different particles, and to driving methods for displaying at least five, and in some embodiments, six different colors at each pixel or sub-pixel.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: March 20, 2018
    Assignee: E INK CALIFORNIA, LLC
    Inventor: Craig Lin
  • Patent number: 9921422
    Abstract: Various types of edge seals for protecting electro-optic displays against environmental contaminants are described. In one type of seal, the electro-optic layer is sandwiched between a backplane and a protective sheet and a sealing material extends between the backplane and the protective sheet. In other seals, the protective sheet is secured to the backplane or to a second protective sheet adjacent the backplane. The electro-optic layer can also be sealed between two layers of adhesive or between one layer of adhesive and the backplane. Other seals make use of flexible tapes extending around the periphery of the display.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: March 20, 2018
    Assignee: E Ink Corporation
    Inventors: Guy M. Danner, Shamus Ford Patry, Charles Howie Honeyman, Thomas H. Whitesides, Michael D. McCreary, Gregg M. Duthaler
  • Patent number: 9904324
    Abstract: The present disclosure discloses a secondary screen structure of a display device, a double-sided display device and a method for manufacturing an e-paper screen. The secondary screen structure of the display device includes an e-paper screen and a secondary screen driving unit connected with each other. The e-paper screen includes an e-paper layer, a touch control unit layer and a solar energy unit layer. The e-paper layer is controlled by the secondary screen driving unit to display. The touch control unit layer may input instructions to the secondary screen driving unit. The solar energy unit layer may supply power for the e-paper layer.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: February 27, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jiuxia Yang, Jiantao Liu
  • Patent number: 9904510
    Abstract: Devices, methods and products are described that provide information handling devices with touch-based reflective display. One aspect provides a method including: providing a touchable control having one or more areas, said one or more areas providing both reflective display and accepting touch-based input; displaying data on a display device of an information handling device which does not overlap the reflective display of said one or more areas; ascertaining touch-based input to said one or more areas of said touchable control area; and executing one or more functions responsive to said touch-based input. Other embodiments are described.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: February 27, 2018
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Aaron M. Stewart, Adam M. Smith, Jeffrey E. Skinner, Thomas J. Sluchak
  • Patent number: 9904140
    Abstract: An electrophoretic particle, a method for manufacturing the electrophoretic particle, an electrophoretic microstructure and an electrophoretic display device are disclosed. The electrophoretic particle includes an electrophoretic particle body and a layer of photoluminescence material coated on the surface of the electrophoretic particle body. A method for manufacturing an electrophoretic particle includes: preparing a photoluminescence material; preparing an electrophoretic particle body; and forming a layer of photoluminescence material on the surface of the electrophoretic particle body.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: February 27, 2018
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Peizhi Cai
  • Patent number: 9904142
    Abstract: A light-modulating element comprises: first and second transparent substrates arranged in opposition to one another; a first transparent electrode arranged on the opposition surface of the first transparent substrate; a plurality of light transmissive regions arranged between the first transparent electrode and the second transparent substrate so as to be separated from one another; a plurality of second transparent electrodes arranged at respective positions on the second transparent substrate opposing the respective light transmissive regions, and that are arranged so as to be separated by a given distance from the respective light transmissive regions; a plurality of third transparent electrodes arranged individually between the second transparent electrodes at a predetermined distance therefrom on the second transparent substrate side; and an electrophoretic member arranged within a gap formed between the first transparent substrate and the second transparent substrate, and that includes light-shielding e
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: February 27, 2018
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventor: Kunihiro Shiota
  • Patent number: 9897890
    Abstract: Reflective image display architecture embodiments are disclosed comprising a perforated continuous reflective sheet. The perforated continuous sheet comprises a coating that provides a threshold to particle movement. The coating may be designed to provide a passive or electro-active physical barrier. The coating improves bistability of the display.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: February 20, 2018
    Assignee: CLEARink Displays, Inc.
    Inventor: Lorne A. Whitehead
  • Patent number: 9898946
    Abstract: A magnetic scanning method includes acquiring an image from a storage device of a magnetic scanning device, controlling a magnetic read-write head of the magnetic scanning device to touch a reference point on a plane, generating an electric signal which reflects relevant information of the acquired image, inputting the electric signal reflecting the relevant information of the acquired image to the magnetic read-write head, when the electric signal reflecting the relevant information of the acquired image flows through the magnetic read-write head, controlling the magnetic read-write head to generate a magnetic field corresponding to the electric signal, controlling the magnetic read-write head to move and scan the plane from the reference point, to magnetize the magnetic powder on the plane by the magnetic field, and driving the magnetic powder to move relatively to generate an image similar to the acquired image.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: February 20, 2018
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Chin-Pin Kuo, Tung-Tso Tsai, Tsung-Yuan Tu, Yu-Cheng Chen, I-Hua Chen, Chun-Chang Chang, Shuo-Yen Chung, Chien-Tsung Lee
  • Patent number: 9897891
    Abstract: Apparatus and methods for forming a composite electrophoretic display comprised of multiple, stacked electrophoretic displays are described. The individual electrophoretic displays that form the composite display may be driven separately using different driving signals. The electrical connections for the individual displays may be configured to minimize the impact of the electrical connections on the overall aesthetic of the composite display.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: February 20, 2018
    Assignee: E Ink Corporation
    Inventors: George G. Harris, Olga Vladimirovna Barykina-Tassa, Brandon MacDonald
  • Patent number: 9891765
    Abstract: A system made up of a first device which includes a communication interface and a processing device and a second device which includes a touch sensor assembly and a controller, where the controller uses the touch sensor assembly to communicate with the processing device through a capacitor that is jointly formed by the touch sensor assembly and a conductive portion of the communications interface.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: February 13, 2018
    Assignee: Cypress Semiconductor Corporation
    Inventor: David G. Wright
  • Patent number: 9892677
    Abstract: An organic light emitting diode display is discussed. The organic light emitting diode display according to an embodiment a plurality of pixels configured to operate in an image mode for displaying images, and in an electricity generation mode for generating an electric current. Each pixel includes an organic light emitting diode and a pixel driving circuit. The pixel driving circuit electrically separates the corresponding light emitting diode from one or more adjacent organic light emitting diodes in the image mode, and electrically connects the corresponding light emitting diode to the one or more adjacent organic light emitting diodes in the electricity generation mode.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: February 13, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hoyoung Jeong, Bokyoung Lee
  • Patent number: 9885912
    Abstract: A liquid crystal display according to an exemplary embodiment includes: a substrate; a liquid crystal layer positioned on the substrate and formed with a plurality of microcavities including liquid crystal molecules; a roof layer positioned on the liquid crystal layer; a capping layer positioned on the roof layer; and a light source positioned on the capping layer and positioned between the plurality of microcavities.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: February 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventor: Tae Gyun Kim
  • Patent number: 9880677
    Abstract: A touch display device includes: a touch display panel including a display region and a non-display region; gate lines and data lines crossing each other to define a pixel region in the display region; a thin film transistor in the pixel region and connected to the corresponding gate and data lines; a touch block having a plurality of pixel regions; a touch line connected to the touch block; a touch display driver IC that supplies a gate signal, a data signal and a common voltage to the pixel region, and supplies a touch scan signal to the touch block; a flexible printed circuit board that transfers timing signals and image data from an external system to the touch display driver IC; and a memory mounted on the flexible printed circuit board.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: January 30, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Jong-Hyun Lee, Hong-Chul Kim
  • Patent number: 9883175
    Abstract: The present disclosure provides a grating structure, a display device and a display mode switching method. The grating structure includes a light-entering surface, a light-exiting surface, and a plurality of grating units arranged continuously between the light-entering surface and the light-exiting surface. Each grating unit includes: an accommodation chamber; a non-transparent electronic ink received in the accommodation chamber and having a predetermined electric polarity; and a controlling module arranged at a periphery of the accommodation chamber and configured to control a region of the electronic ink in the accommodation chamber. When an electric signal is applied by the controlling module, the electronic ink moves to a corresponding region in the accommodation chamber, and after the electric signal is cancelled by the controlling module, the electronic ink is maintained at the current region.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: January 30, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Chunbing Zhang
  • Patent number: 9874799
    Abstract: An optical device including first and second transparent substrates disposed so that the principal surfaces thereof face each other; conductive light shielding patterns disposed on the principal surface side of the first transparent substrate; a transparent conductive film disposed on the principal surface of the second transparent substrate; a plurality of light transmissive regions disposed on the first transparent substrate; and an electrophoretic element disposed in gaps between each adjacent light transmissive regions is configured such that the dispersion state of electrophoretic particles 61 is changed by externally applied electric fields, thereby changing the range of outgoing directions of transmitted light. Thus, it is possible to relieve a decrease in the amount of charging of an electrophoretic element caused by the ingress of incident light and to ensure operation stability.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: January 23, 2018
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventor: Kunihiro Shiota
  • Patent number: 9864206
    Abstract: An optical modulation device includes a first electrode layer in which a plurality of electrodes are arranged and a second electrode layer, where the optical modulation device configures a Fresnel zone plate wherein groups of adjacent electrodes of the plurality of electrodes define zones of the Fresnel zone plate. A method of driving the optical modulation device includes applying a common voltage to the second electrode layer, applying starting voltages to the first electrode layer in a first step, applying lens voltages to the first electrode layer in a second step, where polarities of the lens voltages with respect to the common voltage are inverted for every zone, and an absolute difference between starting voltages applied to electrodes adjacent to a zone boundary in the first step is less than an absolute difference of the lens voltages applied to electrodes adjacent to a zone boundary in the second step.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Hwan Yi, Kyung Ho Jung
  • Patent number: 9857658
    Abstract: In a device for displaying images by application of an electric field to a charged substance, a structure for reducing afterimages and a method for manufacturing the structure are provided. The device is a display device which includes a plurality of pixel electrodes and a charged layer (a layer including a charged substance) provided over the pixel electrodes. An end of one of two pixel electrodes that are adjacent to each other among the plurality of pixel electrodes has a depression in an end-face direction, and an end of the other of the pixel electrodes has a projection in the end-face direction. In a state in which the depression and the projection are in a set, a gap is formed between the two pixel electrodes.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: January 2, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 9847048
    Abstract: An apparatus for driving an e-paper display is provided. The display includes a plurality of segments. The apparatus includes: a memory module for each segment; a SEG 4-to-1 multiplexor connected with the memory module for each segment; a 2-to-1 multiplexor connected with the SEG 4-to-1 multiplexor for each segment; a SEG waveform generator connected with the SEG 4-to-1 multiplexor; a COM waveform generator connected with the 2-to-1 multiplexor; a SEG waveform table connected with the SEG waveform generator; and a COM waveform table connected with the COM waveform generator. The memory module for each segment includes an old Data corresponding to a current state of the segment of the display, a new Data corresponding to a new state to be driven for the segment in a display update period, and a COM_Option memory corresponding to an option state. A method for driving an e-paper display is also provided.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: December 19, 2017
    Assignee: Solomon Systech Limited
    Inventors: Wai Sum Choi, Jian Han
  • Patent number: 9846493
    Abstract: Example systems and methods for writing on electronic paper (“e-paper”) are described. In one example, a system for writing information on electronic paper includes a writing module comprising an array of electrodes. The writing module is configured to selectively operate one or more electrodes in the array of electrodes to write information on the electronic paper. The system also includes a compliant mechanism coupled to the writing module to establish contact between the writing module and the electronic paper.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: December 19, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Omer Gila, Napoleon J Leoni, Henryk Birecki
  • Patent number: 9846344
    Abstract: A display panel includes a display layer and two electrophoresis layers; the display layer is located between the two electrophoresis layers; the display layer has two display surfaces; each of the two electrophoresis layers comprises a plurality of electrophoresis units, and states of the electrophoresis units include transparent state and non-transparent state. The display panel can implement single-side display, two-side display and completely-transparent display and has a simple structure, thereby leading to a reduced thickness.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: December 19, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Chunbing Zhang
  • Patent number: 9841595
    Abstract: An electrowetting element comprises a first fluid and a second fluid immiscible with the first fluid. A support plate includes a support plate surface in contact with at least one of the first or second fluids. The support plate includes an electrode for applying a voltage to control a configuration of the first and second fluids and a reflective surface. A first layer positioned between the reflective surface and the support plate surface has a first layer optical thickness substantially equal to a quarter multiple of a reference wavelength.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: December 12, 2017
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Karel Johannes Gerhardus Hinnen, Gerben Boon, Cristina Maria Petcu, Tulasi Sridhar Reddy Guntaka, Erno Langendijk
  • Patent number: 9835926
    Abstract: The present invention is directed to an electrophoretic dispersion, in particular, an electrophoretic dispersion comprising uncharged or lightly charged additive particles for improving bistability of an electrophoretic display. The average diameter of the additive particles is about 1% to about 25% of the average hydrodynamic diameter of the charged pigment particles.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: December 5, 2017
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Robert A. Sprague, Bo-Ru Yang, Peter B. Laxton
  • Patent number: 9835925
    Abstract: Improvements in the production of electro-optic displays include: (a) use of a masking film to keep a selected area of a backplane (such as a front electrode contact) free from electro-optic material; (b) spray coating of electrophoretic capsules on to a substrate under controlled conditions; (c) forming a monolayer of capsules on a substrate by prior deposition of a water-swellable polymer; and (d) overcoating a layer of electro-optic material with a solvent-free polymerizable liquid material, contacting this layer with a light-transmissive electrode layer, and polymerizing the liquid material to adhere the electrode layer to the electro-optic material.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: December 5, 2017
    Assignee: E Ink Corporation
    Inventors: Stephen Bull, Damien Brewer, Jay William Anseth, Richard J. Paolini, Jr., Thomas Fauvell, George G. Harris, Michael Thomas Regan
  • Patent number: 9830868
    Abstract: A display device including a first common electrode, an active device array substrate, a display medium layer and a power system is provided. The active device array substrate includes a plurality of scan lines, a plurality of data lines, a plurality of transistors, a plurality of pixel electrodes and a second common electrode. Each of the transistors is electrically connected to one scan line and one data line, and the pixel electrodes are electrically connected to the transistors, respectively. The second common electrode and the pixel electrodes form a plurality of storage capacitors. The display medium layer is disposed between the first common electrode and the active device array substrate. The power system is electrically connected to the first common electrode and the second common electrode through two separated conductive routes, respectively. A reset method of a display device is also provided.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: November 28, 2017
    Assignee: E Ink Holdings Inc.
    Inventors: Ya-Wen Lin, Yi-Ming Wu, Pei-Lin Huang
  • Patent number: 9823537
    Abstract: A reflective display device includes an electrophoretic display module, an adhesive layer, and a color filter layer. The adhesive layer is located on the electrophoretic display module. The color filter layer is located on the adhesive layer, and the adhesive layer is between the electrophoretic display module and the color filter layer. The color filter layer includes at least one color resist. The color resist has at least one opening, such that light can pass through the opening.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: November 21, 2017
    Assignee: E Ink Holdings Inc.
    Inventors: Po-Yuan Lo, Tai-Yuan Lee, Hsiao-Tung Chu
  • Patent number: 9824641
    Abstract: There is disclosed a method of driving an electrophoresis display device including a display unit having a plurality of pixel electrodes, a common electrode opposite to the plurality of pixel electrodes, and a first and second electrophoresis particles that are disposed between the plurality of pixel electrodes and the common electrode, the method including applying a first or second potential to each of the pixel electrodes, and applying the first or second potential, which is periodically switched, to the common electrode, when an image displayed on the display unit is rewritten, wherein, when the first and second potentials are periodically applied to the common electrode, the application of the first potential for a first application time and the application of the second potential for a second application time different from the first application time are repeatedly performed.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: November 21, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Atsushi Miyazaki, Kazuki Imai
  • Patent number: 9817292
    Abstract: A display unit of the present invention includes, in an insulating liquid (1), migrating particles (10), and a porous layer (20) formed using a fibrous structure (21), and the fibrous structure (21) includes non-migrating particles (22) having light reflectivity different from light reflectivity of the migrating particles (10) and being at least partially modified with a surfactant.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: November 14, 2017
    Assignee: SONY CORPORATION
    Inventors: Aya Shuto, Ken Kobayashi, Yuriko Kaino
  • Patent number: 9799278
    Abstract: A display system includes a plurality of light emitting units configured to float in a fluid medium such that each light emitting unit is movable, each light emitting unit including a light emitting element configured to selectively emit light, a communication element operable to receive instruction data to control operation of the light emitting element; and a power element configured to provide power to at least the light emitting element, and an image capture element configured to receive light emitted by at least one light emitting unit and to generate image data based on the light received and a controller configured to generate the instruction data based at least on a comparison of the image data to a desired image and transmit the instruction data to the communication element to control the light emitting element such that the display system provides the desired image.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: October 24, 2017
    Assignee: GREEN DISPLAY LLC
    Inventors: Craig P. Mowry, Jesper K. Thomsen
  • Patent number: 9788440
    Abstract: A rollable display device includes a display panel for displaying an image, a printed circuit board connected to an edge of the display panel, and a roller which the display panel is rolled onto or unrolled from. The roller has a cylindrical shape having an inner space, and the printed circuit board is disposed in the inner space.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: October 10, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seok-Hyo Cho, Chul Park
  • Patent number: 9778535
    Abstract: A particle dispersion and the display devices in which the dispersion may be incorporated are provided. The particle dispersion includes a dispersion medium, one or more types of particle groups that are dispersed in the dispersion medium that may differ based on color and/or charge, and counter-ions oppositely charged than the one or more particle groups. The particle groups and counter-ions are moved in the dispersion medium according to an electric field formed in the dispersion medium. The one or more types of particle groups are configured such that the total amount of charges of one type of particle group (a) among the one or more types of particle groups is greater than a total amount of charges of the counter-ions that are charged with a polarity opposite to that of the particle group (a).
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: October 3, 2017
    Assignee: E Ink Corporation
    Inventors: Taijyu Gan, Tomozumi Uesaka, Hiroaki Moriyama, Nami Tokunaga, Yoshinori Machida