Particle Suspensions (e.g., Electrophoretic) Patents (Class 345/107)
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Patent number: 9733671Abstract: 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: GrantFiled: October 21, 2014Date of Patent: August 15, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kang-Won Lee, Man-Sik Myeong, Kyu-Young Kim, Tae-Hyeog Jung
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Patent number: 9726957Abstract: 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: GrantFiled: January 10, 2014Date of Patent: August 8, 2017Assignee: E Ink CorporationInventors: Stephen J. Telfer, Peter Carsten Bailey Widger, Ana L. Lattes, Dan John Lauber
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Patent number: 9730318Abstract: 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: GrantFiled: April 30, 2015Date of Patent: August 8, 2017Assignee: Samsung Display Co., Ltd.Inventors: Kyungmin Choi, Youn Joon Kim, Sangjo Lee, Junghun Lee, Jusuck Lee
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Patent number: 9726790Abstract: 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: GrantFiled: January 26, 2016Date of Patent: August 8, 2017Assignee: Face International CorporationInventors: Clark D Boyd, Bradbury R Face, Jeffrey D Shepard
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Patent number: 9726880Abstract: 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: GrantFiled: December 24, 2014Date of Patent: August 8, 2017Assignee: Amazon Technologies, Inc.Inventors: Pavel Novoselov, Anthony John Slack, Henricus Petronella Maria Derckx, Jozef Elisabeth Aubert
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Patent number: 9710020Abstract: 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: GrantFiled: August 19, 2014Date of Patent: July 18, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyungmin Choi, Hyunwoo Koo, Taewoong Kim
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Patent number: 9709799Abstract: 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: GrantFiled: October 30, 2014Date of Patent: July 18, 2017Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Juan Chen
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Patent number: 9707743Abstract: 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: GrantFiled: January 30, 2015Date of Patent: July 18, 2017Assignee: Seiko Epson CorporationInventors: Takashi Aoki, Shinobu Yokokawa
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Patent number: 9701532Abstract: 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: GrantFiled: June 29, 2016Date of Patent: July 11, 2017Assignee: International Business Machines CorporationInventors: Qing Cao, Kangguo Cheng, Zhengwen Li, Fei Liu
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Patent number: 9697778Abstract: 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: GrantFiled: May 14, 2014Date of Patent: July 4, 2017Assignee: E Ink CorporationInventors: 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
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Patent number: 9685100Abstract: 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: GrantFiled: May 11, 2015Date of Patent: June 20, 2017Assignee: Samsung Display Co., Ltd.Inventors: Kyungmin Choi, Youn Joon Kim, Sangjo Lee, Junghun Lee, Jusuck Lee
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Patent number: 9684340Abstract: 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: GrantFiled: December 28, 2015Date of Patent: June 20, 2017Assignee: LG DISPLAY CO., LTD.Inventors: Changhoon Han, Bongchul Kim, Jaehyun Kim, Yongyub Kim, Jaewook Park, Woosub Kim
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Patent number: 9685611Abstract: 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: GrantFiled: June 29, 2016Date of Patent: June 20, 2017Assignee: International Business Machines CorporationInventors: Qing Cao, Kangguo Cheng, Zhengwen Li, Fei Liu
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Patent number: 9671667Abstract: 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: GrantFiled: August 22, 2013Date of Patent: June 6, 2017Assignee: E Ink CorporationInventor: Yasuo Yamamoto
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Patent number: 9671669Abstract: 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: GrantFiled: October 7, 2015Date of Patent: June 6, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Petrus Johannes Gerardus Van Lieshout, Erik Van Veenendaal, Elgar Denys Kleijne, Volker Barnhart Verschoor
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Patent number: 9664977Abstract: 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: GrantFiled: July 30, 2013Date of Patent: May 30, 2017Assignee: TOPPAN PRINTING CO., LTD.Inventors: Ryuji Doi, Akira Emori, Kayo Shoji
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Patent number: 9664978Abstract: 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: GrantFiled: March 4, 2015Date of Patent: May 30, 2017Assignee: E Ink CorporationInventors: Alexi C. Arango, Joseph M. Jacobson, Karl Raymond Amundson, Dirk Hertel
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Patent number: 9661364Abstract: 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: GrantFiled: September 27, 2011Date of Patent: May 23, 2017Assignee: VERIZON PATENT AND LICENSING INC.Inventor: Fred C. Scheer
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Patent number: 9659539Abstract: 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: GrantFiled: April 16, 2015Date of Patent: May 23, 2017Assignee: Novatek Microelectronics Corp.Inventors: Po-Yu Tseng, Chieh-An Lin, Po-Hsiang Fang, Jhih-Siou Cheng, Ju-Lin Huang, Yi-Chuan Liu
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Patent number: 9658707Abstract: 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: GrantFiled: March 12, 2014Date of Patent: May 23, 2017Assignee: 3M Innovative Properties CompanyInventors: Gordon F. Taylor, Thomas J. Rebeschi
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Patent number: 9655172Abstract: 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: GrantFiled: June 4, 2013Date of Patent: May 16, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroshi Sumi, Haruka Ohno
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Patent number: 9640126Abstract: 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: GrantFiled: December 17, 2014Date of Patent: May 2, 2017Assignees: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.Inventors: Zhihua Sun, Baoyu Liu, Weichao Ma
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Patent number: 9640119Abstract: 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: GrantFiled: October 5, 2016Date of Patent: May 2, 2017Assignee: E INK CALIFORNIA, LLCInventors: Craig Lin, Ming-Jen Chang
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Patent number: 9620068Abstract: 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: GrantFiled: January 19, 2014Date of Patent: April 11, 2017Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTDInventor: Liang Xu
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Patent number: 9620067Abstract: 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: GrantFiled: November 23, 2015Date of Patent: April 11, 2017Assignee: E Ink CorporationInventors: Demetrious Mark Harrington, Theodore A. Sjodin, Robert W. Zehner, Timothy J. O'Malley, Benjamin Harris Paletsky
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Patent number: 9613502Abstract: 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: GrantFiled: May 25, 2015Date of Patent: April 4, 2017Assignee: Diebold, IncorporatedInventors: Ken Turocy, Bryan Simmons, Eric Klein, Dustin Boley, David Nikkel, Daniel Bissler, Mike Ryan
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Patent number: 9608322Abstract: 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: GrantFiled: August 12, 2015Date of Patent: March 28, 2017Assignees: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Zhi-Cheng Yu, Cheng-Qiu Wei
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Patent number: 9595231Abstract: 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: GrantFiled: April 20, 2011Date of Patent: March 14, 2017Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Atsushi Umezaki
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Patent number: 9594286Abstract: 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: GrantFiled: December 24, 2013Date of Patent: March 14, 2017Assignee: LG Display Co., Ltd.Inventors: IlHo Kim, JungHoon Seo, KiPyo Hong, ByungChun Yu, SangLyn Lee
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Patent number: 9585277Abstract: 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: GrantFiled: March 12, 2014Date of Patent: February 28, 2017Assignee: Amazon Technologies, Inc.Inventors: Andrea Giraldo, Paul Vermeulen
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Patent number: 9568800Abstract: 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: GrantFiled: April 29, 2015Date of Patent: February 14, 2017Assignee: Amazon Technologies, Inc.Inventor: Robert Arthur Sprague
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Patent number: 9564088Abstract: The invention provides materials and methods (including driving methods) for reducing the effects of remnant voltages in electro-optic displays.Type: GrantFiled: April 15, 2015Date of Patent: February 7, 2017Assignee: E Ink CorporationInventors: 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
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Patent number: 9563099Abstract: 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: GrantFiled: January 20, 2016Date of Patent: February 7, 2017Assignee: E Ink CorporationInventors: 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
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Patent number: 9541813Abstract: 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: GrantFiled: January 30, 2012Date of Patent: January 10, 2017Assignee: NLT TECHNOLOGIES, LTD.Inventors: Michiaki Sakamoto, Koji Shigemura
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Patent number: 9540516Abstract: 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: GrantFiled: December 3, 2013Date of Patent: January 10, 2017Assignee: BOE Technology Group Co., Ltd.Inventors: Jianchao Lun, Yangyang Xin, Jinbo Lu
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Patent number: 9541814Abstract: 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: GrantFiled: February 19, 2015Date of Patent: January 10, 2017Assignee: E INK CALIFORNIA, LLCInventors: Craig Lin, Ming Wang, Hui Du, Xiaojia Zhang, Yu Li, Roman Ivanov, Yajuan Chen
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Patent number: 9527224Abstract: Flexible members for use in imaging devices comprise a polymerizable release agent.Type: GrantFiled: February 17, 2011Date of Patent: December 27, 2016Assignee: Xerox CorporationInventors: Edward F. Grabowski, Yuhua Tong
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Patent number: 9513743Abstract: 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: GrantFiled: May 21, 2013Date of Patent: December 6, 2016Assignee: E Ink CorporationInventors: 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.
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Patent number: 9500852Abstract: 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: GrantFiled: September 30, 2014Date of Patent: November 22, 2016Assignee: Amazon Technologies, Inc.Inventors: Lara Tauk, Pavel Novoselov
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Patent number: 9494842Abstract: 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: GrantFiled: December 17, 2014Date of Patent: November 15, 2016Assignee: SEIKO EPSON CORPORATIONInventor: Yasushi Yamazaki
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Patent number: 9488895Abstract: 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: GrantFiled: February 17, 2016Date of Patent: November 8, 2016Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
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Patent number: 9470898Abstract: 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 corType: GrantFiled: September 16, 2014Date of Patent: October 18, 2016Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventor: Yuan Xiong
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Patent number: 9459510Abstract: 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: GrantFiled: May 15, 2014Date of Patent: October 4, 2016Assignee: E INK CALIFORNIA, LLCInventor: Craig Lin
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Patent number: 9436058Abstract: 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: GrantFiled: September 11, 2015Date of Patent: September 6, 2016Assignee: E INK CALIFORNIA, LLCInventors: Yu Li, HongMei Zang
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Patent number: 9424794Abstract: 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: GrantFiled: June 6, 2014Date of Patent: August 23, 2016Assignee: INNOLUX CORPORATIONInventors: Yu-Lun Hsu, Chao-Hsiang Wang, An-Chang Wang
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Patent number: 9424800Abstract: 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: GrantFiled: July 30, 2013Date of Patent: August 23, 2016Assignee: E Ink CorporationInventors: Masaaki Abe, Naoki Hiji, Yasufumi Suwabe, Yoshinori Machida
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Patent number: 9423666Abstract: 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: GrantFiled: November 6, 2014Date of Patent: August 23, 2016Assignee: E INK CALIFORNIA, LLCInventors: Ming Wang, Yu Li, Hui Du, Xiaojia Zhang, Haiyan Gu, Roman Ivanov, Robert Sprague
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Patent number: 9423829Abstract: 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: GrantFiled: March 2, 2015Date of Patent: August 23, 2016Assignee: CFPH, LLCInventor: Gregory P. Manning
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Patent number: 9417499Abstract: 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: GrantFiled: March 25, 2011Date of Patent: August 16, 2016Assignee: LG Display Co., Ltd.Inventors: Chul Hwan Kim, Yong Eui Lee
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Patent number: 9412314Abstract: 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: GrantFiled: March 26, 2009Date of Patent: August 9, 2016Assignee: E Ink CorporationInventors: Karl R. Amundson, Robert W. Zehner, Ara N. Knaian, Benjamin Zion