Particle Suspensions (e.g., Electrophoretic) Patents (Class 345/107)
  • Patent number: 9733671
    Abstract: A flexible display apparatus is disclosed. The flexible display apparatus includes a display panel, a cover substrate, a first receiving portion and a first fluid. The display panel includes a first region and a second region surrounding at least one sides of the first region. The cover substrate is disposed over the display panel. The first receiving portion is disposed between the display panel and the cover substrate. The first receiving portion overlaps the first region of the display panel and has an empty space. The first fluid is disposed in the first receiving portion.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: August 15, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang-Won Lee, Man-Sik Myeong, Kyu-Young Kim, Tae-Hyeog Jung
  • Patent number: 9726957
    Abstract: An electro-optic display has a viewing surface through which a user views the display, a bistable, non-electrochromic electro-optic medium, and at least one electrode arranged to apply an electric field to the electro-optic medium, the display. The display comprises at least 10 micromoles per square meter of the viewing surface of at least one redox compound having an oxidation potential more negative that about 150 mV with respect to a standard hydrogen electrode, as measured at pH 8.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: August 8, 2017
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Peter Carsten Bailey Widger, Ana L. Lattes, Dan John Lauber
  • Patent number: 9730318
    Abstract: A rollable display device includes a flexible display panel, a housing, a grip part, and a connection part. The flexible display panel is configured to display an image. The flexible display panel is rolled and kept inside the housing. The grip part extends the flexible display panel from the housing to expose the flexible display panel to the outside of the housing. The connection part is between the flexible display panel and the grip part to connect the flexible display panel and the grip part. The connection part is not configured to display the image.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: August 8, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyungmin Choi, Youn Joon Kim, Sangjo Lee, Junghun Lee, Jusuck Lee
  • Patent number: 9726790
    Abstract: A system and method are provided for forming energy filter layers or shutter components, including energy/light directing/scattering layers that are actively electrically switchable. The energy filters or shutter components are operable between at least a first mode in which the layers, and thus the presentation of the shutter components, appear substantially transparent when viewed from an energy/light incident side, and a second mode in which the layers, and thus the presentation of the energy filters or shutter components, appear opaque to the incident energy impinging on the energy incident side. The differing modes are selectable by electrically energizing, differentially energizing and/or de-energizing electric fields in a vicinity of the energy scattering layers, including electric fields generated between a pair of transparent electrodes sandwiching an energy scattering layer.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: August 8, 2017
    Assignee: Face International Corporation
    Inventors: Clark D Boyd, Bradbury R Face, Jeffrey D Shepard
  • Patent number: 9726880
    Abstract: In a system having a matrix of electrowetting display elements, a column driving system transmits a column voltage signal to an electrode of each electrowetting display element of at least one selected row of n rows of electrowetting display elements. A first row driving system transmits a first row voltage signal to a switchable element associated with each respective electrowetting display element of the selected row. A second row driving system transmits a second row voltage signal to the switchable element associated with each respective electrowetting display element of rows of the n rows of electrowetting display elements. A configuration of respective first and second fluids of the electrowetting display elements of at least one row of the n rows is controlled by selectively transmitting: the first row voltage signal using the first row driving system, and the second row voltage signal, using the second row driving system.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: August 8, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Pavel Novoselov, Anthony John Slack, Henricus Petronella Maria Derckx, Jozef Elisabeth Aubert
  • Patent number: 9710020
    Abstract: A rollable display apparatus includes a flexible display panel and a housing. The flexible display panel includes a display region which displays an image and a dummy region which does not display an image. The dummy region is connected to a side of the display region, and the dummy region and the display region are disposed in one direction. The flexible display panel is rollable around an outside surface of the housing. The dummy region includes a first dummy portion fixed in the housing and a second dummy portion connected to the first dummy portion. The second dummy portion is wrapped around the housing.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: July 18, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyungmin Choi, Hyunwoo Koo, Taewoong Kim
  • Patent number: 9709799
    Abstract: The invention relates to the field of display technique, particularly relates to an electrowetting display panel, a fabrication method thereof and a display apparatus comprising the same. The electrowetting display panel comprises a first substrate and a second substrate which are disposed opposite to each other, wherein the first substrate, the second substrate and the space therebetween are divided into a plurality of sub-pixel areas, and a baffle wall is disposed in the gap area between each two adjacent sub-pixel areas, characterized in that the baffle wall is formed from a material having both a hydrophilic group and a hydrophobic group. The electrowetting display panel has a simpler structure, the baffle wall thereof has a superior adhesiveness, and there is no necessary to form a hole in the hydrophobic dielectric layer to enhance the adhesiveness of the baffle wall during fabrication, such that the fabrication process is simplified.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: July 18, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Juan Chen
  • Patent number: 9707743
    Abstract: A method of manufacturing electrophoresis particles having base particles exposing first functional groups on surfaces and block copolymers bonded to the base particles, the method including: obtaining the plurality of block copolymers in which dispersion portions formed by polymerizing monomers including side chains contributing to dispersibility in a dispersion medium and bonding portions formed by polymerizing second monomers including second functional groups having reactivity with the first functional group are bonded, by living polymerization; and bonding the bonding portions to the base particles by reacting the first functional groups and the second functional groups so that the block copolymers are bonded to the base particles.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: July 18, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Takashi Aoki, Shinobu Yokokawa
  • Patent number: 9701532
    Abstract: An electromechanical device comprises a substrate structure, a set of electrodes, one or more anchor trenches, and one or more multi-faced components. For example, each of the one or more multi-faced components comprises an isolation region formed on a first portion of the surface of the component, a high resistance region formed on a second portion of the surface of the component, and a low resistance region formed on a third portion of the surface of the component. For example, the synapse device is configured to provide an analog resistive output, ranging between the high resistance region and the low resistance region, from at least one of the set of electrodes in response to a pulsed voltage input to at least another one of the set of electrodes.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: July 11, 2017
    Assignee: International Business Machines Corporation
    Inventors: Qing Cao, Kangguo Cheng, Zhengwen Li, Fei Liu
  • Patent number: 9697778
    Abstract: An electrophoretic medium comprises a fluid and at least one species of particles disposed, When a first addressing impulse is applied to the medium, the first species of particles move in one direction relative to the electric field, but when a second addressing impulse, larger than the first addressing impulse, is applied to the medium, the first species of particles move in the opposed direction relative to the electric field.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: July 4, 2017
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Stephen Bull, Alain Bouchard, Craig A. Herb, Kosta Ladavac, Ana L. Lattes, Jennifer M. Morrison, Richard J. Paolini, Jr., Michael Thomas Regan, Luke M. Slominski, Lee Yezek, Kenneth R. Crounse, J. Ryan Kruse, Christopher L. Hoogeboom, Jason D. Feick, David Darrell Miller
  • Patent number: 9685100
    Abstract: A rollable display is disclosed. In one aspect, the rollable display includes a flexible display panel configured to display an image via at least a portion thereof and a housing accommodating at least a portion of the flexible display panel. The flexible display panel has a point of inflection in the portion of the flexible display panel accommodated in the housing.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: June 20, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyungmin Choi, Youn Joon Kim, Sangjo Lee, Junghun Lee, Jusuck Lee
  • Patent number: 9684340
    Abstract: Disclosed is a rollable flexible display device. The rollable flexible display device includes, for example, a display panel, a source board, and a panel roller unit. The panel roller unit provides a mechanical structure for rolling the display panel and the source board along an outer circumferential surface thereof. The panel roller unit may have a region forming a curved surface and a region forming a planar surface.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 20, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Changhoon Han, Bongchul Kim, Jaehyun Kim, Yongyub Kim, Jaewook Park, Woosub Kim
  • Patent number: 9685611
    Abstract: An electromechanical device comprises a substrate structure, a set of electrodes, one or more anchor trenches, and one or more multi-faced components. For example, each of the one or more multi-faced components comprises an isolation region formed on a first portion of the surface of the component, a high resistance region formed on a second portion of the surface of the component, and a low resistance region formed on a third portion of the surface of the component. For example, the synapse device is configured to provide an analog resistive output, ranging between the high resistance region and the low resistance region, from at least one of the set of electrodes in response to a pulsed voltage input to at least another one of the set of electrodes.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: June 20, 2017
    Assignee: International Business Machines Corporation
    Inventors: Qing Cao, Kangguo Cheng, Zhengwen Li, Fei Liu
  • Patent number: 9671667
    Abstract: An electrophoretic particle includes a polymer having at least a reactive compound represented by the following Formula (I) as a polymerizable component, at least on a surface: wherein in Formula (I), Ra represents a hydrogen atom or a methyl group, X represents a substituted or unsubstituted divalent hydrocarbon group, Y represents a substituted or unsubstituted divalent hydrocarbon group, and Z represents a hydrogen atom, or a substituted or unsubstituted monovalent hydrocarbon group.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: June 6, 2017
    Assignee: E Ink Corporation
    Inventor: Yasuo Yamamoto
  • Patent number: 9671669
    Abstract: The invention relates to a device comprising a multilayered structure with a first portion and a second portion wherein the first portion is conceived to be rolled about a first roller, said device comprising a second roller for receiving the second portion for at least partially counteracting the effects of mechanical strain induced in the multilayered structure upon said rolling. The first roller is rotated in a first direction, whereby the second roller is rotated in a second direction. Preferably, the diameters of the first roller and the second roller are equal. Alternatively, the edge portions A, B of the multilayer structure are suitably interconnected by stoppers for preventing creeping.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: June 6, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Petrus Johannes Gerardus Van Lieshout, Erik Van Veenendaal, Elgar Denys Kleijne, Volker Barnhart Verschoor
  • Patent number: 9664977
    Abstract: Disclosed is an electrophoretic display device manufacturing method including bonding a substrate including a pixel electrode and a stacked film including a transparent electrode layer and an electrophoretic display layer, and forming a color filter layer having a pixel pattern corresponding to a pattern of the pixel electrode above a base material surface of the stacked film. The substrate has a region where the electrophoretic display layer is not arranged when the substrate and the stacked film are bonded, a pixel alignment pattern is drawn in the region, and in the forming the color filter layer, the color filter layer is formed while performing alignment using the pixel alignment pattern.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: May 30, 2017
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Ryuji Doi, Akira Emori, Kayo Shoji
  • Patent number: 9664978
    Abstract: A dielectrophoretic display comprises a substrate having walls defining at least one cavity, the cavity having a viewing surface and a side wall inclined to the viewing surface; a suspending fluid contained within the cavity; a plurality of at least one type of particle suspended within the suspending fluid; and means for applying to the fluid an electric field effective to cause dielectrophoretic movement of the particles to the side wall of the cavity.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: May 30, 2017
    Assignee: E Ink Corporation
    Inventors: Alexi C. Arango, Joseph M. Jacobson, Karl Raymond Amundson, Dirk Hertel
  • Patent number: 9661364
    Abstract: An exemplary method includes a media content presentation system dynamically maintaining a list of recommended media content programs for a user and available by way of a media content access device during a media content presentation session, detecting a channel surfing command provided by the user during the media content presentation session, and directing, in response to the channel surfing command, the media content access device to switch to a channel presenting a recommended media content program included in the list of recommended media content programs. Corresponding methods and systems are also disclosed.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: May 23, 2017
    Assignee: VERIZON PATENT AND LICENSING INC.
    Inventor: Fred C. Scheer
  • Patent number: 9659539
    Abstract: A gate driver, a display apparatus having the same, and a gate driving method are provided. The display apparatus includes a plurality of pixels, a data driver circuit, and a gate driver circuit. The gate driver circuit includes M groups of gate channels. Each of the M groups of gate channels includes a control circuit and an output buffer. The control circuit receives a power supply voltage from a power supply circuit and generates a modulated supply voltage. The output buffer is connected to the control circuit, the output buffer is powered by the modulated supply voltage to output a gate signal to a gate line of the display panel, wherein a driving pulse of the gate signal is shaped during a charge period according to the modulated supply voltage, and the shape of the driving pulse of the gate signal is maintained during a pre-charge period.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: May 23, 2017
    Assignee: Novatek Microelectronics Corp.
    Inventors: Po-Yu Tseng, Chieh-An Lin, Po-Hsiang Fang, Jhih-Siou Cheng, Ju-Lin Huang, Yi-Chuan Liu
  • Patent number: 9658707
    Abstract: Apparatus for providing modular connection means to electrodes in a touch-sensitive device. The modular connections may include electronics allowing controlling electronics to individually address electrodes associated with driving electrodes and sensing signals occurring on electrodes.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: May 23, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Gordon F. Taylor, Thomas J. Rebeschi
  • Patent number: 9655172
    Abstract: A touch slider unit includes: a touch slider having a contact part to be in contact with a user and a light-transmitting part disposed to surround a circumference of the contact part; an electrode disposed on a back surface of the contact part of the touch slider; a controller which detects a change in electrostatic capacity of the electrode to detect a contact of the user with the touch slider based on the detected change in the electrostatic capacity of the electrode; and a light source disposed on the back side of the touch slider to emit a light, thereby having a favorable backlight characteristic and an improved operability.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: May 16, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroshi Sumi, Haruka Ohno
  • Patent number: 9640126
    Abstract: Embodiments of the present invention disclose an array substrate, a driving method thereof and a display panel. The array substrate includes: data lines, connected with a source driver IC; gate lines, connected with a gate driver IC; and pixel units, arranged in an array, wherein each row of pixel units are connected with a first gate line and a second gate line, the first gate line receives a gate driving signal in the case of displaying an odd frame image, the second gate line receives a gate driving signal in the case of displaying an adjacent even frame image, each pixel unit comprises a first and second TFTs, the first TFT is connected with the first gate line; the second TFT is connected with the second gate line; each column of pixel units are connected with two data lines, two adjacent columns of pixel units share one data line.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: May 2, 2017
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.
    Inventors: Zhihua Sun, Baoyu Liu, Weichao Ma
  • Patent number: 9640119
    Abstract: The present invention provides driving methods for color displays using electrophoretic fluids comprises four types of particles to display four colors at each pixel. Methods are also provided for displaying mixtures of certain pairs of colors at each pixel.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: May 2, 2017
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Ming-Jen Chang
  • Patent number: 9620068
    Abstract: The present invention discloses a liquid crystal display including a first common voltage regulator, a second common voltage regulator, a switching circuit, and a sequential controller. The first common voltage regulator regulates a common voltage to minimize a flicker during a switching mode between a white frame and a black frame and set this common voltage as a first common voltage. The second common voltage regulator regulates a common voltage to minimize a flicker during a switching mode between a gray frame and a black frame and set this common voltage as a second common voltage. The sequential controller inserts predetermined number of abnormal frames every predetermined number of normal frames according to a preset scan frequency. The switching circuit is correspondingly connected to the first common voltage regulator and a second common voltage regulator.
    Type: Grant
    Filed: January 19, 2014
    Date of Patent: April 11, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Liang Xu
  • Patent number: 9620067
    Abstract: An electro-optic display uses first and second drive schemes differing from each other, for example a slow gray scale drive scheme and a fast monochrome drive scheme. The display is first driven to a pre-determined transition image using the first drive scheme, then driven to a second image, different from the transition image, using the second drive scheme. The display is thereafter driven to the same transition image using the second drive scheme; and from thence to a third image, different from both the transition image and the second image, using the first drive scheme.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: April 11, 2017
    Assignee: E Ink Corporation
    Inventors: Demetrious Mark Harrington, Theodore A. Sjodin, Robert W. Zehner, Timothy J. O'Malley, Benjamin Harris Paletsky
  • Patent number: 9613502
    Abstract: In an example embodiment, there is described herein an apparatus comprising a cassette operable to store documents, the cassette having an external surface, an electrophoretic display coupled with the external surface, and a wireless interface coupled with the cassette and operably coupled with the electrophoretic display. In particular embodiments, the electrophoretic display is operable to receive data representative of configuration from a wireless device in data communication with the wireless interface.
    Type: Grant
    Filed: May 25, 2015
    Date of Patent: April 4, 2017
    Assignee: Diebold, Incorporated
    Inventors: Ken Turocy, Bryan Simmons, Eric Klein, Dustin Boley, David Nikkel, Daniel Bissler, Mike Ryan
  • Patent number: 9608322
    Abstract: An electronic device includes a printed circuit board (PCB), an antenna and a switch. The antenna is printed on the PCB. The antenna includes multiple key contacts. Each of the multiple key contacts includes a first terminal, a second terminal and a third terminal. The first terminal is an output terminal. The second terminal and the third terminal are connected in series in the antenna. The switch switches the electronic device to an input mode and an antenna mode, thus the electronic device can be alternatively switched to an input function or a communication function.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: March 28, 2017
    Assignees: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Zhi-Cheng Yu, Cheng-Qiu Wei
  • Patent number: 9595231
    Abstract: Objects are to provide a display device in which images with higher quality are displayed by a reduction in afterimages of a previously displayed image, and to reduce power consumption of the display device. A pixel in the display device is initialized to suppress an afterimage due to the previous gray level of a display element. Specifically, a voltage applied to the display element for initialization and the time for applying the voltage are changed in accordance with the previous gray level of the display element. Initialization of the display element can prevent an afterimage of a previously displayed image.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: March 14, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Atsushi Umezaki
  • Patent number: 9594286
    Abstract: There are provided a transparent display apparatus and a method for controlling the same. The transparent display apparatus includes a transparent display unit that includes a plurality of first pixels having an emissive area on which an image is displayed and a transmissive area on which a background is projected; a light control unit that includes a plurality of second pixels disposed on one surface of the transparent display unit; and a transmittance control device that extracts at least one object from an image displayed by the transparent display unit and controls transmittance of an area, which corresponds to the light control unit and the extracted object.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: March 14, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: IlHo Kim, JungHoon Seo, KiPyo Hong, ByungChun Yu, SangLyn Lee
  • Patent number: 9585277
    Abstract: An electrowetting display device comprising at least one picture element with a first support plate including a first electrical element, a second electrical element and a through-connection electrically connecting the first electrical element to the second electrical element. The through-connection is arranged outside a projected display area of the at least one picture element.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: February 28, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Andrea Giraldo, Paul Vermeulen
  • Patent number: 9568800
    Abstract: A thin border display for an electronic device may comprise an optical assembly that includes a support frame and an electrophoretic display (EPD) structure attached to the support frame in a manner that allows for the display of the electronic device to exhibit a “thin border” or “borderless” look at a periphery of the electronic device. A portion of the EPD structure may at least partly curve around a curved portion of the support frame, the curved portion of the support frame being near the periphery of the support frame. In some embodiments, an electrode may be disposed at a periphery of the display to drive the margin of the display for achieving a thin border/borderless appearance. The EPD structure may include a backplane substrate that is either rigid or flexible.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: February 14, 2017
    Assignee: Amazon Technologies, Inc.
    Inventor: Robert Arthur Sprague
  • Patent number: 9564088
    Abstract: The invention provides materials and methods (including driving methods) for reducing the effects of remnant voltages in electro-optic displays.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: February 7, 2017
    Assignee: E Ink Corporation
    Inventors: Russell J. Wilcox, Thomas H. Whitesides, Karl R. Amundson, Guy M. Danner, Richard M. Webber, Charles H. Honeyman, Lan Cao, Richard J. Paolini, Jr., Rajesh Chebiyam
  • Patent number: 9563099
    Abstract: A front plane laminate useful in the manufacture of electro-optic displays comprises, in order, a light-transmissive electrically-conductive layer, a layer of an electro-optic medium in electrical contact with the electrically-conductive layer, an adhesive layer and a release sheet. This front plane laminate can be prepared as a continuous web, cut to size, the release sheet removed and the laminate laminated to a backplane to form a display. Methods for providing conductive vias through the electro-optic medium and for testing the front plane laminate are also described.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: February 7, 2017
    Assignee: E Ink Corporation
    Inventors: Richard D. LeCain, Ara N. Knaian, Steven J. O'Neil, Gregg M. Duthaler, Guy M. Danner, Robert W. Zehner, Alberto Goenaga, Benjamin Max Davis, Randolph W. Chan, Jonathan D. Albert, Glen Crossley
  • Patent number: 9541813
    Abstract: An image display device having improved image retention capability by analyzing the mechanism behind the creation of an unwanted electric field applied to an element after a power supply is turned off, and devising a drive method and so forth for compensating for the same, is provided. Electrophoretic particles contain three types of charged particles, C (cyan), M (magenta), and Y (yellow) that are mutually different in color and threshold voltage for starting electrophoresis. When the threshold voltages of C (cyan), M (magenta) and Y (yellow) are respectively Vth3, Vth2, and Vth3, these satisfy the relationship |Vth3|<|Vth2|<|Vth1|. Further, a voltage application unit applies a voltage (VE) different from a reference potential during the final period of image update period. The voltage (VE) is a compensation voltage that suppresses the movement of charged particles.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: January 10, 2017
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventors: Michiaki Sakamoto, Koji Shigemura
  • Patent number: 9540516
    Abstract: The invention relates to use of quantum dots in a pigment dispersion liquid. The invention also relates to a pigment dispersion liquid, which comprises a pigment, quantum dots, a dispersion agent, a dispersing resin and a solvent. The invention also relates to the process for producing the pigment dispersion liquid. The use of quantum dots provided by the invention broadens the application field of the quantum dots and develops the use thereof in the field of liquid crystal display. The pigment dispersion liquid having quantum dots added therein provided by the invention has a significantly improved stability of dispersion. Furthermore, the quantum dots and the organic pigment can interact with each other by adjusting the composition, the size or the like of the quantum dots, so that the properties of the pigment are improved and the contrast thereof is increased.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: January 10, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Jianchao Lun, Yangyang Xin, Jinbo Lu
  • Patent number: 9541814
    Abstract: The present invention is directed to a color display device in which each pixel can display at least five high-quality color states, and an electrophoretic fluid for such an electrophoretic display. In one aspect, the different types of particles exhibit different levels of attraction force to display different color states. In another aspect, the different types of particles exhibit different levels of mobility in different driving voltage ranges to display different color states.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 10, 2017
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Ming Wang, Hui Du, Xiaojia Zhang, Yu Li, Roman Ivanov, Yajuan Chen
  • Patent number: 9527224
    Abstract: Flexible members for use in imaging devices comprise a polymerizable release agent.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: December 27, 2016
    Assignee: Xerox Corporation
    Inventors: Edward F. Grabowski, Yuhua Tong
  • Patent number: 9513743
    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: May 21, 2013
    Date of Patent: December 6, 2016
    Assignee: E Ink Corporation
    Inventors: Theodore H. Sjodin, Yuval Ben-Dov, Kenneth R. Crounse, Jason Lin, Karl Raymond Amundson, Michael Patrick Almon, Hugh M. Enxing, Timothy J. O'Malley, Jr.
  • Patent number: 9500852
    Abstract: An electrowetting device includes an electrowetting element having a first fluid; a second fluid immiscible with the first fluid, a configuration of the first and second fluids being controllable with an applied voltage; and at least one electrode for providing the applied voltage. The electrowetting device includes a plurality of electrical elements for providing the applied voltage, which include a first electrical element and a second electrical element. A portion of the first electrical element overlaps a portion of the second electrical element. The electrowetting device includes a dielectric layer between the portions of the first and second electrical elements, the dielectric layer formed at least partly of a dielectric material having a dielectric constant less than 3.9.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: November 22, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Lara Tauk, Pavel Novoselov
  • Patent number: 9494842
    Abstract: In an electrophoretic material, first particles which are charged with a first polarity and second particles which are charged with a second polarity are dispersed in a solvent. A volume, which is obtained by dividing a volume of the solvent by a total number of particles, is called free volume, and a radius of a spherical space, which is occupied by sum of an average volume of the particles and the free volume, is called a free volume radius. A first particle average radius is greater than a second particle average radius. A difference between the free volume radius and the first particle average radius is greater than the second particle average radius.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: November 15, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yasushi Yamazaki
  • Patent number: 9488895
    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: February 17, 2016
    Date of Patent: November 8, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 9470898
    Abstract: The present invention provides a 2D-3D switching device of a naked eye 3D display, comprising a first substrate (1), a second substrate (2) oppositely located to the first substrate (1), a plurality of electrodes (3) located between the first substrate (1) and the second substrate (2) and on the second substrate (2), a dielectric layer (4) formed on the second substrate (1) and completely covering surfaces of the plurality of electrodes (3) and a first fluid (51) which is hydrophobic and a second fluid (52) which is hydrophilic which fill between the first substrate (1) and the second substrate (2); the first substrate (1) comprises a prism (11), and a side of the first substrate (1) having the prism (11) is opposite to the second substrate (2), and the prism (11) of the first substrate (1) comprises a plurality of curved surface zones (111) which are evenly distributed and a plurality of perimeter zones (112) located surrounding the curved surface zones (111), and each of the electrodes (3) is positioned cor
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: October 18, 2016
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Yuan Xiong
  • Patent number: 9459510
    Abstract: The present invention provides a multicolor display device which can display high quality color states. More specifically, an electrophoretic fluid is provided which comprises three or four types of particles and color filters are placed on the viewing side of the display device.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: October 4, 2016
    Assignee: E INK CALIFORNIA, LLC
    Inventor: Craig Lin
  • Patent number: 9436058
    Abstract: The present invention is directed to an electrophoretic display film which can be controlled to malfunction permanently within a period of time. It provides an elegant method to utilize an electrophoretic film for anti-counterfeit purposes. The concept involves the removal of strong barrier layer(s) from the film to allow the solvent in the electrophoretic fluid within the film to evaporate through weak barrier layer(s), and within a period of time, the performance of the display film will be significantly degraded and the film cannot be re-used.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: September 6, 2016
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Yu Li, HongMei Zang
  • Patent number: 9424794
    Abstract: A display panel comprises a first substrate, a second substrate disposed opposite to the first substrate, a liquid crystal layer disposed between the first and second substrates, and a pixel array disposed on the first substrate and including at least one pixel, which includes a first electrode layer, a second electrode layer and an insulation layer disposed between the first and second electrode layers. The second electrode layer has n electrode portions, the electrode portions are spaced from each other and disposed along a first direction, an electrode width of one of the electrode portions along the first direction is denoted by W (?m), the maximum width of a light-emitting area of the pixel along the first direction is denoted by Ax (?m), and the equation is satisfied as below: 1 2 × ( 10 × Ax 3 × W - 1 ) - 1 ? n ? 1 2 × ( 10 × Ax 3 × W - 1 ) + 1.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: August 23, 2016
    Assignee: INNOLUX CORPORATION
    Inventors: Yu-Lun Hsu, Chao-Hsiang Wang, An-Chang Wang
  • Patent number: 9424800
    Abstract: Provided is a driving device of an image display medium including a voltage application unit that varies a voltage applied to a common electrode provided in one of a pair of substrates, and applies a voltage to a pixel electrode provided in the other substrate through active matrix driving, with respect to the image display medium including plural kinds of particles, and a controller that controls the voltage application unit such that a voltage is applied between the pair of substrates, and controls the voltage application unit such that a deviation time of a scanning timing generated due to the active matrix driving during transition to the steps and a potential difference between the pair of substrates in the deviation time are equal to or less than predefined threshold characteristics of the particles.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: August 23, 2016
    Assignee: E Ink Corporation
    Inventors: Masaaki Abe, Naoki Hiji, Yasufumi Suwabe, Yoshinori Machida
  • Patent number: 9423666
    Abstract: The present invention is directed to an electrophoretic fluid which comprises uncharged or lightly charged neutral buoyancy particles. The resulting fluid can improve not only image stability but also contrast ratio of a display device, without significantly affecting the switching speed. The present invention is also directed to an electrophoretic display comprising display cells filled with the electrophoretic fluid.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: August 23, 2016
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Ming Wang, Yu Li, Hui Du, Xiaojia Zhang, Haiyan Gu, Roman Ivanov, Robert Sprague
  • Patent number: 9423829
    Abstract: Various configurations of an electronic display, and devices incorporating the display, are provided. The display may have multiple portions connected along one or more axes, lines, points, or other connecting areas. The portions are movable about the connections. In various configurations, the display portions emulate different media and/or communication and computing devices. Two or more of the display devices may be coupled in an array.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: August 23, 2016
    Assignee: CFPH, LLC
    Inventor: Gregory P. Manning
  • Patent number: 9417499
    Abstract: A multi-color electrophoretic display (EPD) device, an image sheet, and a method of fabricating the same. The multi-color EPD device includes: a plurality of unit color pixels; and a plurality of color capsules, each comprising color capsule shell which stores a dielectric fluid and at least one type of electrophoretic particles dispersed in the dielectric fluid, the plurality of color capsules being arranged to define subpixels of each of the plurality of unit color pixels.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: August 16, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Chul Hwan Kim, Yong Eui Lee
  • Patent number: 9412314
    Abstract: An electro-optic display, having at least one pixel capable of achieving any one of at least four different gray levels including two extreme optical states, is driven by displaying a first image on the display, and rewriting the display to display a second image thereon, wherein, during the rewriting of the display, any pixel which has undergone a number of transitions exceeding a predetermined value without touching an extreme optical state, is driven to at least one extreme optical state before driving that pixel to its final optical state in the second image.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: August 9, 2016
    Assignee: E Ink Corporation
    Inventors: Karl R. Amundson, Robert W. Zehner, Ara N. Knaian, Benjamin Zion