Electrochromic Elements Patents (Class 345/105)
  • Patent number: 10349038
    Abstract: A depth camera assembly (DCA) determines depth information for a scene in a field of view of the DCA. The DCA includes a structured light (SL) illuminator, a camera, and a controller. The SL illuminator includes a source assembly, a SL element, a liquid crystal (LC) array, and a polarizer. The source assembly generates light, and the SL element generates a SL pattern using the generated light source. The LC array includes a plurality of addressable cells configured to polarize the SL pattern in accordance with adjustment instructions. The polarizer attenuates portions of the SL pattern based on the polarization of the portions of the SL pattern. The camera captures an image of the SL pattern, and the controller identifies portions of the image that are saturated and generates adjustment instructions based in part on the identified portions of the image, and provides the adjustment instructions to the LC array.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: July 9, 2019
    Assignee: Facebook Technologies, LLC
    Inventors: Nicholas Daniel Trail, Stephen James McNally
  • Patent number: 10281793
    Abstract: An electrochromic dimming device is provided. The electrochromic dimming device includes an electrochromic element, a color development power source, a color discharge powder source, and a variable resistance. The color development power source supplies electric power to the electrochromic element when the electrochromic element develops color. The color discharge powder source supplies electric power to the electrochromic element when the electrochromic element discharges color. The variable resistance is disposed on a first current path without being disposed on a second current path. The first current path is formed from the color development power source through a ground via the electrochromic element, and the second current path is formed from the color discharge power source to the ground via the electrochromic element.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: May 7, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Atsushi Ohshima, Shigenobu Hirano, Keiichiroh Yutani, Takahiko Matsumoto, Hidekazu Yaginuma, Kazuaki Tsuji, Sukchan Kim, Yasuo Katano, Kohji Takeuchi, Shun Goto, Tohru Hasegawa, Hiroaki Kobayashi
  • Patent number: 10236472
    Abstract: A method for producing a light-emitting device includes preparing a supporting substrate forming a porous layer on or above the supporting substrate, the porous layer being an organic material layer and containing a plurality of pores, and forming a transparent substrate on or above the porous layer. The method further includes forming a light-emitting element on or above the transparent substrate, breaking the porous layer at a portion inside the porous layer or at an interface between the supporting substrate and the porous layer, and separating the supporting substrate from the transparent substrate while at least part of the broken porous layer is attached to the transparent substrate.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: March 19, 2019
    Assignee: PANASONIC CORPORATION
    Inventors: Kenji Okumoto, Yuji Tanaka
  • Patent number: 10156764
    Abstract: An electrochromic system and method for controlling photochromic darkening of an electrochromic device, the system including an EC device, a control unit, a voltage detector, and a power supply. The EC device includes a working electrode, a counter electrode, and a solid-state polymer electrolyte disposed therebetween. The control unit is configured to control a sweep voltage applied between the working and counter electrodes, such that the sweep voltage is applied when an open circuit voltage (OCV) between the working and counter electrodes is less than a threshold voltage.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: December 18, 2018
    Assignee: HELIOTROPE TECHNOLOGIES, INC.
    Inventors: Guillermo Garcia, Sourav Basu, Jason Holt
  • Patent number: 10152087
    Abstract: A flexible display device including a display panel including a first space area and a second space area; a touch panel disposed on the display panel to sense a touch signal; a first sensor disposed on the touch panel in the first space area and configured to sense a first coordinate signal for the first space area; a second sensor disposed on the touch panel in the second space area and configured to sense a second coordinate signal for the second space area; and a driving control unit configured to calculate a folding angle between the first space area and the second space area based on the first and second coordinate signals and calculate a coordinate of a touch point based on the touch signal.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: December 11, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventor: Chansung Jung
  • Patent number: 10137764
    Abstract: A window control system is provided that includes a plurality of electro-optic windows each having a variable transmittance level, a portable control unit for generating wireless control signals for controlling the transmittance level of the electro-optic windows, and a plurality of window control circuits each coupled to a respective one of the electro-optic windows and each having a transceiver for receiving the wireless control signals from the portable control unit. Each window control circuit is configured to adjust the transmittance level of the respective one of the electro-optic windows in response to a wireless control signal received by the transceiver from the portable control unit.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: November 27, 2018
    Assignee: GENTEX CORPORATION
    Inventors: David I. Driscoll, Christopher J. Adamski
  • Patent number: 10133082
    Abstract: A 3D grating, a color filter substrate, a display device and a control method thereof are provided. The 3D grating comprises: a first transparent electrode layer; a second transparent electrode layer; and an electrochromic material layer formed between the first transparent electrode layer and the second transparent electrode layer; wherein the first transparent electrode layer comprises a pattern of strip-shaped electrodes, which comprises a plurality of strip-shaped electrodes and an electrode wire electrically connected with each of the strip-shaped electrodes in the pattern; and wherein the electrochromic material layer is configured to be non-transparent when it is in an electric field and to be transparent when it is not in an electric field, or the electrochromic material layer is configured to be transparent when it is in an electric field and to be non-transparent when it is not in an electric field.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: November 20, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shengji Yang, Xue Dong, Hailin Xue, Haisheng Wang, Wenqing Zhao, Renwei Guo, Peng Liu, Chung-Chun Chen, Jinghua Miao, Mubing Li, Changfeng Li, Yingming Liu, Weijie Zhao, Xiaoliang Ding, Wei Liu, Hongjuan Liu
  • Patent number: 10031356
    Abstract: An optical device, having an active matrix, containing polymer dispersed liquid crystals, guest-host liquid crystals, suspended particles and/or polymer stabilized cholesteric liquid crystals, the active high transmissive mode has at least 40% of incoming light transmitted through the optical device and in low transmissive mode less than 40% of incoming light transmitted through the optical device, the active matrix is switchable between high transmissive mode and low transmissive mode. The optical device containing a fail-safe mechanism, which is capable to switch the active matrix from a low transmissive mode in a high transmissive mode without the power of an applied grid. The optical device has a fail-safe mechanism comprising at least one battery and a controller.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: July 24, 2018
    Assignee: Merck Patent GmbH
    Inventors: Casper Van Oosten, Felix Schlosser
  • Patent number: 10001809
    Abstract: A flexible display device including: a flexible display; a first sensor configured to sense an exposed area of the display which is exposed in a rolled state of the display; a second sensor configured to sense a user grip area within the exposed area, the user grip area corresponding to a user grip; and a controller configured to, in response to the exposed area and the user grip area being sensed, control the display to display a screen on the exposed area excluding the user grip area.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: June 19, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon-kyu Seo, Kyung-a Kang, Hyun-jin Kim, Nipun Kumar, Chang-soo Lee
  • Patent number: 9971224
    Abstract: To prevent damage in an electro-optical device that uses electrochromic material. The device includes electro-optical elements and a driving device that applies a driving voltage to the electro-optical elements. The driving device applies a first DC voltage of a positive polarity that cyclically repeats a first voltage and a second voltage that is lower than the first voltage, or a second DC voltage of a negative polarity that cyclically repeats a third voltage and a fourth voltage that is higher than the third voltage, to the electro-optical elements. According to the driving device, when the first DC voltage is applied to one and the second DC voltage is applied to the other electro-optical elements adjacent in the planar view, the first and the second DC voltages are supplied by time division so that the applied period of the first voltage and the third voltage do not overlap.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: May 15, 2018
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventor: Yasuo Toko
  • Patent number: 9928785
    Abstract: In one general aspect, a computing device can include a base, and a lid coupled to the base. The lid can house a display section including a first side and a second side. The display section can include a display device having a first side and a second side. The first side of the display device can be located on the first side of the display section and the second side of the display device can be located on the second side of the display section. An enclosure can surround the display device. The enclosure can include a fluid, a plurality of particles suspended in the fluid, and a layer of circuitry disposed on a surface of the enclosure. The computing device can be configured to control movement of the particles within the fluid by applying an electric field to the layer of circuitry.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: March 27, 2018
    Assignee: Google LLC
    Inventors: Nicholas Jordan Sanders, Derek Basehore
  • Patent number: 9694422
    Abstract: In one embodiment, a method is provided for fabrication of a semitransparent conductive mesh. A first solution having conductive nanowires suspended therein and a second solution having nanoparticles suspended therein are sprayed toward a substrate, the spraying forming a mist. The mist is processed, while on the substrate, to provide a semitransparent conductive material in the form of a mesh having the conductive nanowires and nanoparticles. The nanoparticles are configured and arranged to direct light passing through the mesh. Connections between the nanowires provide conductivity through the mesh.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: July 4, 2017
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Mark Greyson Christoforo, Saahil Mehra, Alberto Salleo, Peter Peumans
  • Patent number: 9692954
    Abstract: Various exemplary devices and methods are provided for adjusting brightness of a light source. In general, the devices and methods can allow brightness of a light source to be adjusted by varying a power supply of the light source. The power supply can be varied in response to a user input. In one exemplary embodiment, the light source can be included as part of a scope, e.g., a borescope, an endoscope, etc., configured to be advanced into a target and to gather one or more video images and/or one or more still images within the target using a camera. The light source can be configured to illuminate the target at a selected one of the variable amounts of brightness. A white balance of the light source can be configured to automatically adjust in response to the selected amount of brightness.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: June 27, 2017
    Assignee: General Electric Company
    Inventors: James J. Delmonico, Dennis William Mcenery
  • Patent number: 9625703
    Abstract: An electrowetting display comprises a first support plate and a second support plate, pixel regions between the first support plate and the second support plate, and two walls on the first support plate that delineate the pixel regions from one another. The two walls are separated by a gap. The electrowetting display further comprises an electrolyte solution between the first support plate and the second support plate and in the gap that separates the two walls.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: April 18, 2017
    Assignee: Amazon Technologies, Inc.
    Inventor: Pavel Novoselov
  • Patent number: 9606353
    Abstract: A variable transparency glass and an apparatus for adjusting a transparency variable glass are provided. The transparency variable glass includes a first transparent plate that has a first electrode part formed on an inner surface thereof and a second transparent plate that has a second electrode part formed on an inner surface thereof. In addition, a variable transmission layer is disposed between the first transparent plate and the second transparent plate.
    Type: Grant
    Filed: December 7, 2014
    Date of Patent: March 28, 2017
    Assignee: Hyundai Motor Company
    Inventors: Sung Woo Lee, Hoon Choi, Min Jae Kang
  • Patent number: 9341909
    Abstract: A window assembly comprises a plurality of dynamic electrochromic zones formed on a single transparent substrate in which at least two electrochromic zones are independently controllable. In one exemplary embodiment, the window assembly comprises an Insulated Glass Unit (IGU), and at least one transparent substrate comprises a lite. In another exemplary embodiment, the IGU comprises at least two lites in which at least one lite comprises a plurality of independently controllable dynamic zones.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: May 17, 2016
    Assignee: View, Inc.
    Inventors: Peter Egerton, Drew Gaskell
  • Patent number: 9183793
    Abstract: An electrophoretic display apparatus driving method that allows DC balance to be achieved and reduces variations in size and color tone of a displayed image that may occur in a partial-screen drive method and related apparatus are provided. The drive method includes a first image display step (S2) of displaying a first image in a first color on a display section, a first image adjustment step (S3) of displaying a background of the first image in a second color, a first image deletion step (S4) of displaying the background of the first image in the first color, a second image display step (S12) of displaying a background of a second image in the second color, a second image adjustment step (S13) of displaying the second image in the first color, and a second image deletion step (S14) of displaying the second image in the second color.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: November 10, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Tetsuro Murayama
  • Publication number: 20150138224
    Abstract: A method of changing a light transmittance of a head-mounted display device and the head-mounted device are provided. The method of changing a light transmittance of a head-mounted display device includes detecting an illuminance; determining an application displayed on a display unit of the head-mounted display device; determining a first light transmittance corresponding to the illuminance and the application; and changing a second light transmittance of a light transmission unit of the head-mounted display device to the determined first light transmittance.
    Type: Application
    Filed: November 11, 2014
    Publication date: May 21, 2015
    Inventors: Dae-Hyun KIM, Lae-Kyoung Kim, Soon-Seob Han
  • Publication number: 20150077316
    Abstract: In a display device having a display area in which a plurality of pixels are formed to display an image, each of the plurality of pixels includes a brightness control layer that controls brightness of the pixel by light emission, and a light emission color control layer that controls a light emission color in the pixel by controlling a transmission wavelength band of a light emitted from the brightness control layer to be transmitted, and a light emission color control signal for controlling the transmission wavelength band to control the light emission color in the pixel is input to the light emission color control layer in each pixel.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Inventor: Toshihiro SATO
  • Patent number: 8970455
    Abstract: Systems and methods are provided for managing the display of content on a display screen (110) of an electronic device (100). According to certain aspects, a sensor (119) or a set of a plurality of sensors (225) generate image data corresponding to a user viewing the device. Further, in one embodiment, a film (111) generates electrical signals corresponding to a shape or configuration of the display screen. The electronic device can calculate a distortion parameter based on the electrical signals. In another embodiment, an additional set of the plurality of sensors generates image data, from which the electronic device can calculate the distortion parameter. The electronic device generates processed image data based on the viewing position and the distortion parameter, and displays the processed image data on the display screen in such a way that the content appears oriented and proportioned to the user viewing the display screen.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: March 3, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Dean E Thorson, William P Alberth, Jr.
  • Patent number: 8946715
    Abstract: Problems exist in areas such as image visibility, endurance of the device, precision, miniaturization, and electric power consumption in an information device having a conventional resistive film method or optical method pen input function. Both EL elements and photoelectric conversion elements are arranged in each pixel of a display device in an information device of the present invention having a pen input function. Information input is performed by the input of light to the photoelectric conversion elements in accordance with a pen that reflects light by a pen tip. An information device with a pen input function, capable of displaying a clear image without loss of brightness in the displayed image, having superior endurance, capable of being miniaturized, and having good precision can thus be obtained.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: February 3, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama
  • Patent number: 8941582
    Abstract: An electrophoretic display device includes: first and second substrates; an electrophoretic layer which is interposed between the first and second substrates; and a third substrate which is disposed opposite the first substrate with the second substrate interposed therebetween, which is joined to the first substrate with a sealing member interposed therebetween, and which seals the electrophoretic layer with the second substrate interposed therebetween. The first and third substrates have extension sections extending with respect to the second substrate in a plan view. The sealing member fills a part of a gap between the extension section of the first substrate and the extension section of the third substrate, and the sealing member does not come into contact with an outer edge of the third substrate.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: January 27, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Hiroyasu Yamada
  • Patent number: 8902151
    Abstract: An electrochromic display device includes a display substrate, a counter substrate facing the display substrate, counter electrodes arranged on the counter substrate, an electrolyte layer arranged between the display substrate and the counter electrodes, display electrodes separately arranged from one another between the display substrate and the counter electrodes, electrochromic layers to develop or reduce a color by redox reactions, the electrochromic layers being formed on the respective display electrodes arranged such that the electrochromic layers face the set of the counter electrodes, a voltage applying unit to select one of the display electrodes to connect the selected display electrode and the counter electrodes to apply a voltage between the connected display electrode and counter electrodes, a disconnecting unit to disconnect the unselected display electrodes from the counter electrodes, and an interelectrode connecting unit to connect the display electrodes.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: December 2, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Tohru Yashiro, Shigenobu Hirano, Yoshihisa Naijo, Koh Fujimura, Akishige Murakami, Hiroyuki Takahashi, Yoshinori Okada
  • Patent number: 8896520
    Abstract: An electrophoretic display apparatus includes a first substrate and a second substrate; an electrophoretic layer that is allocated between the first substrate and the second substrate; and a first electrode and a second electrode that are each formed in an island shape, for each pixel, at the electrophoretic layer side of the first substrate, and are mutually independently driven. The first and second electrodes form a comb-teeth shaped electrode in a plan view, which include a plurality of branch portions and a trunk portion combining the plurality of branch portions, and each of first ones of the branch portions, which are located at respective edge portions of a pixel area, has a width smaller than a width of each of second ones of the branch portions, which are branch portions other than the first branch portions.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: November 25, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuro Murayama, Yukimasa Ishida
  • Publication number: 20140333685
    Abstract: An electro-optic display has a plurality of pixels, each of which is capable of displaying two extreme optical states and at least one intermediate gray level. Each pixel is driven from an initial intermediate gray level to one extreme optical state and thence to a first desired intermediate gray level, so producing a first image on the display. The pixel then remains at this first desired intermediate gray level for a finite length of time. The pixel is then driven from this first desired intermediate gray level to the opposed extreme optical state and thence to a second desired intermediate gray level, so producing a second image on the display.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Inventors: Teck Ping Sim, Kenneth R. Crounse
  • Patent number: 8886257
    Abstract: An electronic device includes a housing, a display module, and a touch panel. On the housing, an opening is formed. The display module is fixed to the inside of the housing in such a way that a display surface faces the side of the opening. The touch panel is placed to be opposed to the display surface of the display module via a first elastic member placed on the display surface of the display module, and is fixed to the housing via a second elastic member placed on the housing. Hardness of the first elastic member is higher than that of the second elastic member.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: November 11, 2014
    Assignee: Fujitsu Limited
    Inventors: Tomohiro Butsusaka, Kei Kojima, Chikara Kobayashi, Masahiko Ina, Shigehiro Fujii
  • Patent number: 8864321
    Abstract: A controller or control method may be designed or configured to operate without information about the current temperature of the device and/or the device's environment. Further, in some cases, the controller or control method is designed or configured to control transition of an optical device to an intermediated state between two end states. For example, the controller may be configured to control a transition to a state of transmissivity that is intermediate between two end states of transmissivity. In such case, the device has three or more stable states of transmissivity.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: October 21, 2014
    Assignee: View, Inc.
    Inventors: Disha Mehtani, Gordon Jack, Anshu Pradhan
  • Patent number: 8844128
    Abstract: A method for manufacturing an electrophoretic display device includes forming partition walls for defining a plurality of pixel regions on a lower substrate; filling charged particles into the plurality of pixel regions; filling a pixel solvent in the plurality of pixel regions having been filled with the charged particles; and attaching the lower substrate and an upper substrate to each other.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: September 30, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Yu Sok Lim, Myoung Ho Lee, Young Mu Oh, Seung Han Paek, Young Jun Yu, Sung Jin Park, Seung-Hee Kang
  • Patent number: 8823753
    Abstract: A display driver circuit configured to be shared by three grey-scale voltage generators to be respectively used with red (R), green (G) and blue (B) colors. In particular, two of the three grey-scale voltage generators share first and second resistor strings, gamma voltage selectors, and gamma adjustment buffers provided in the other grey-scale voltage generator, thereby reducing the size and power consumption of the display driver circuit. Also, when only a single grey-scale voltage is output, it is possible to deactivate the grey-scale voltages provided by two of the grey-scale generators and further reduce power consumption.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: September 2, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: In-Suk Kim, Jae-Goo Lee, Jae-Hyuck Woo
  • Patent number: 8823605
    Abstract: An incandescent light source display includes a container and a number of incandescent light sources. The incandescent light sources are located in the container. Each of the incandescent light sources includes a first electrode, a second electrode and an incandescent element. The second electrode is spaced from the first electrode. The incandescent element is electrically connected to the first electrode and the second electrode. The incandescent element includes a carbon nanotube structure.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: September 2, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Peng Liu, Liang Liu, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 8797258
    Abstract: The present invention is directed to a highlight color display. One of the key features of the invention is the dark color of the display fluid filled in the microcups, which allows the dark state to appear black. There is no alignment required between the pixel electrodes and the microcups. In practice, a standard active matrix array may be used to drive the display device.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: August 5, 2014
    Assignee: SiPix Imaging, Inc.
    Inventor: Robert A. Sprague
  • Patent number: 8797302
    Abstract: In a flexible display panel and a fabricating method thereof, the flexible display panel includes a flexible substrate, a plurality of electro-phoretic pixel units, a plurality of electro-wetting pixel units, a transparent protective layer and a driving circuit. The electro-phoretic pixel units and the electro-wetting pixel units are formed in a first displaying area and a second displaying area of the flexible substrate respectively. The transparent protective layer is formed on the electro-phoretic pixel units and the electro-wetting pixel units, and the driving circuit is formed in the non-displaying area of the flexible substrate and electrically connected to the electro-phoretic pixel units and the electro-wetting pixel units. The flexible display panel may display static pictures through the electro-phoretic pixel units and display animation through the electro-wetting pixel units. Therefore, the flexible display panel has both the abilities for saving power and displaying animation.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: August 5, 2014
    Assignee: E Ink Holdings Inc.
    Inventors: Ted-Hong Shinn, Yi-Ching Wang, Yuan-Chih Tsai
  • Patent number: 8786932
    Abstract: The present invention provides for a display device and a method to manufacture the display device. The display device includes: a transparent layer; a coloring electrode; a separator; a second electrode; an electrolyte permeating throughout the display device; and a back layer positioned on the back side of the display. The transparent layer, which has a top surface and a bottom surface, is positioned at the viewer side of the display. The coloring electrode is positioned on the transparent layer bottom surface and includes: a connected conductor system formed from one or more heterogeneous conductive layers and a coloring layer, with the proviso that the heterogeneous conductive layers are not positioned between the transparent layer bottom surface and the coloring layer. The conductor heterogeneity includes variations in one or more of: conductor material composition; conductor layer dimension; conductor layer pattern; conductor layer grid design, and combinations thereof.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: July 22, 2014
    Assignees: Ntera, Inc., Ntera Limited
    Inventors: Gavin Copeland, Alain Briancon, Martin Moeller, Nigel Leyland, Chris Giacoponello, Micheal Cassidy, Christian Grave, David Corr, David Bevk, Michael Ryan
  • Patent number: 8754845
    Abstract: Methods of manufacturing electrophoretic display devices are disclosed. The display including a back substrate and including a substantially hollow container that includes a transparent substrate forming a cavity therebetween. The transparent substrate including one or more cathode electrodes forming a plurality of electronically and selectively addressable pixels; one or more side walls extending from the transparent substrate, the side walls defining corresponding pixels, and a suspension fluid including a plurality of pigment particles in fluid communication with each of the cells by a gap formed between the side walls.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: June 17, 2014
    Assignee: Copytele, Inc.
    Inventors: Denis A. Krusos, Anthony J. Campisi
  • Patent number: 8749479
    Abstract: An electronic paper (E-paper) display device includes a first substrate comprising at least one side wall having a high reflectance film coated thereon, an E-paper layer, and a second substrate. A light source installed beside and facing the at least one sidewall of the first substrate, the light source being configured for illuminating the E-paper layer with some of the light from the light source directly illuminating the E-paper layer and some of the light from the light source illuminating the E-paper layer via the reflection of the high reflectance film.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: June 10, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Chun-Wei Pan, Kuan-Hong Hsieh, Han-Che Wang, Chiu-Hsiung Lin
  • Patent number: 8749869
    Abstract: This invention discloses corrosion resistant metal compositions that may be used to form nanoparticles or for coating of particles. Further, such particles may be used to fabricate printable transparent conductors that may be used in electronic devices. Electrochromic displays formed using such conductors are described.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: June 10, 2014
    Assignee: AJJER, LLC
    Inventors: Anoop Agrawal, John P. Cronin
  • Patent number: 8743048
    Abstract: A disclosed electrochromic display element includes a display substrate, a counter substrate facing the display substrate, display electrodes arranged between the display substrate and the counter substrate, electrochromic layers formed on the respective display electrodes, a plurality of drive elements arranged on the counter substrate at predetermined intervals, a plurality of pixel electrodes arranged on the drive elements, a charge retention layer formed over the pixel electrodes as a continuous layer, the charge retention layer being formed of a mixed film including a polymer and one of electric conductive microparticles and semiconductor microparticles, and an electrolyte layer sandwitched between the display substrate and the charge retention layer.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: June 3, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Takahashi, Yoshinori Okada, Tohru Yashiro, Akishige Murakami, Shigenobu Hirano, Yoshihisa Naijo
  • Patent number: 8736942
    Abstract: An electrochromic device that is capable of changing the transmission of either visible or infrared radiations as a function of the polarity of a voltage applied to the device.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: May 27, 2014
    Assignee: Battelle Memorial Institute
    Inventors: Steven M. Risser, Vincent D. McGinniss, Amy M. Heintz, Kevin B. Spahr, James D. Browning
  • Patent number: 8736944
    Abstract: A transparent electrochromic system includes a cellular structure, two power supply electrodes together supported on a single wall, and at least one additional electrode. The additional electrode can be used as a reference electrode or as a polarization electrode. The additional electrode can also form a condenser with a fourth electrode that is added to the system, in order to control a migration of certain electroactive substances responsible for coloring and decoloring the system. The operation of the system can thus be improved.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: May 27, 2014
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventors: Claudine Biver, Jean-Paul Cano, Sandrine Duluard, Anthony Saugey
  • Patent number: 8728266
    Abstract: An electro-optic display is produced using a sub-assembly comprising a front sheet, an electro-optic medium; and an adhesive layer. An aperture is formed through the adhesive layer where the adhesive layer is not covered by the electro-optic medium, and the sub-assembly is adhered to a backplane having a co-operating member with the aperture engaged with a co-operating member, thus locating the sub-assembly relative to the backplane. In another form of electro-optic display, a chip extends through an aperture in the electro-optic medium and adhesive layer. In a third form, the aforementioned sub-assembly is secured to a backplane and then a cut is made through both backplane and sub-assembly to provide an aligned edge.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: May 20, 2014
    Assignees: E Ink Corporation, Creator Technology B.V.
    Inventors: Guy M. Danner, Valerie C. Northrop, Jonathan D. Albert, Holly G. Gates, Erik van Veenendaal, Fredericus J. Touwslager
  • Patent number: 8711469
    Abstract: An electrophoretic element includes: an electrophoretic particle; a porous layer formed of a fibrous structure containing a non-migrating particle having optical reflective characteristics different from those of the electrophoretic particle and having a plurality of pores; and a partition that is partially adjacent to the porous layer and defines a space for accommodating the electrophoretic particle. An area rate of the pores per unit area of the porous layer is small in an adjacent region where the partition is adjacent to the porous layer compared with in a non-adjacent region where the partition is not adjacent to the porous layer.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: April 29, 2014
    Assignee: Sony Corporation
    Inventors: Atsuhito Yasui, Hidehiko Takanashi, Ken Kobayashi, Ryo Kasegawa, Aya Shuto
  • Patent number: 8638275
    Abstract: An incandescent light source display includes a substrate, a plurality of first electrode down-leads, a plurality of second electrode down-leads and a plurality of heating units. The plurality of first electrode down-leads are located on the substrate in parallel to each other and the plurality of second electrode down-leads are located on the substrate in parallel to each other. The first electrode down-leads cross the second electrode down-leads and corporately define a grid having a plurality of cells. Each of the incandescent light sources is located in correspondence with each of the cells. Each incandescent light source includes a first electrode, a second electrode and an incandescent element. The incandescent element includes a carbon nanotube structure.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: January 28, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Peng Liu, Liang Liu, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 8629833
    Abstract: Single particle and dual-particle electrophoretic display devices are disclosed. The display comprises a back substrate and a transparent substrate forming a cavity therebetween. The transparent substrate including one or more cathode electrodes forming a plurality of electronically and selectively addressable pixels; one or more side walls extending from the transparent substrate, the side walls defining corresponding pixels, and a suspension fluid in fluid communication with each of the cells by a gap formed between the top of the side walls and the back substrate. In addition, the displays include a thin-film transistor (TFT) active matrix substrate to selectively drive one or more of the cathode electrodes. In addition, methods for manufacturing of the displays are disclosed.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: January 14, 2014
    Assignee: Copytele, Inc.
    Inventors: Anthony J. Campisi, Denis A. Krusos
  • Patent number: 8610662
    Abstract: The invention relates to a method of driving an electrowetting display which includes a plurality of electrowetting elements, the display comprising at least one first fluid and a second fluid immiscible with each other, each of the electrowetting elements comprising at least one surface area. In a first, relatively low voltage, driving state of an electrowetting element the second fluid tends to cover the at least one surface area, and in a second, relatively high voltage, driving state of an electrowetting element the first fluid tends to cover the at least one surface area.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: December 17, 2013
    Assignee: Liquavista B.V.
    Inventors: Robert Gerardus Hendrik Boom, Roy Van Dijk, Henricus Petronella Maria Derckx
  • Patent number: 8581899
    Abstract: A display medium includes a pair of substrates, a dispersion medium sealed between the pair of substrates, a migrating particle group dispersed in the dispersion medium, and a surface layer provided on at least one of the facing surfaces of the pair of substrates and including a polymer compound that is a copolymer containing the following constitutional unit (A) and constitutional unit (B), X represents a group containing a silicone chain, Ra1 and Ra2 each independently represent a hydrogen atom or a methyl group, Rb2 represents an organic group containing a substituted or unsubstituted phenyl group, n1 and n2 each represent mol % of the constitutional unit relative to the whole copolymer and satisfy 0<n1<50 and 0<n2<80, respectively, and n represents a natural number of 1 or more and 3 or less.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: November 12, 2013
    Assignee: Fuji Serox Co., Ltd.
    Inventors: Hiroaki Moriyama, Yasuo Yamamoto, Yoshinori Machida, Ryota Mizutani
  • Patent number: 8570272
    Abstract: An electrophoresis display panel includes a plurality of first sub-pixels, a plurality of second sub-pixels, a plurality of third sub-pixels, and a plurality of white sub-pixels. The first sub-pixels, the second sub-pixels, and the third sub-pixels are suitable for irradiating different light of three primary colors, respectively, while the white sub-pixels are suitable for irradiating white light. Each of the first sub-pixels does not adjoin the second sub-pixels and the third sub-pixels. Each of the second sub-pixels does not adjoin the third sub-pixels. Each of the first sub-pixels adjoins the white sub-pixels exclusively or adjoins the white sub-pixels and other first sub-pixels exclusively.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: October 29, 2013
    Assignee: Au Optronics Corporation
    Inventors: Ming-Che Hsieh, Chih-Wei Chu, Shih-Yu Wang
  • Patent number: 8558785
    Abstract: A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: October 15, 2013
    Assignee: E Ink Corporation
    Inventors: Robert W. Zehner, Holly G. Gates, Karl R. Amundson, Joanna F. Au, Ara N. Knaian, Alexi C. Arango, Jonathan L. Zalesky
  • Patent number: 8519150
    Abstract: Provided are a ?-electron conjugated polymer having a constitutional unit represented by general formula (2) that is suitable as an electrochromic material that changes from a desired colored state to a decolored state, a new compound that is a raw material of the polymer, and a method for producing the polymer: wherein each X independently represents one selected from the group consisting of an oxygen atom, a sulfur atom, —NH—, and —NR1— (wherein R1 is an optionally substituted alkyl group having 1 to 20 carbon atoms or an optionally substituted aryl group having 6 to 20 carbon atoms); each Y independently represents an oxygen atom or a sulfur atom; each Z independently represents one selected from the group consisting of a hydrogen atom and optionally substituted organic groups having 1 to 20 carbon atoms, and W is one selected from the group consisting of an ethynylene group, an optionally substituted ethenylene group, optionally substituted arylene groups, and optionally substituted divalent heteroaromati
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: August 27, 2013
    Assignee: Kuraray Co., Ltd.
    Inventors: Yoshirou Kondou, Kirihiro Nakano, Tomiaki Otake
  • Publication number: 20130215004
    Abstract: A data matrix code arrangement, and a method for making the same are disclosed. The data matrix code arrangement includes a fix data matrix code including a static pattern forming a first readable Data Matrix code, and an electrochemically switchable organic electrochromic display comprising pixel element including a controller arranged for enabling an application of a predetermined potential difference between an electrochromic layer and a counter electrode layer of the pixel element. The application of a potential difference initiates and maintains a colour switch of the predetermined ones of the pixel elements. The fix Data Matrix code and the display are aligned such that the static pattern of the first Data Matrix code and the predetermined ones of the pixel elements, when switched, forms a second readable Data Matrix code, which is different from the first readable Data Matrix code.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 22, 2013
    Inventor: Staffan NORDLINDER
  • Patent number: 8508436
    Abstract: A display or light-modulating device incorporates one or more measures of liquid that obstruct or filter light that passes onto or through the liquid; a space distribution of different light-modulating filters, optical instrument or materials or of materials that change the frequency or color of light passing onto or through them, to emit a different frequency or color of light; and means to apply electrowetting effect to controllably modulate the location or shape of one or more measures of a polar or conductive liquid, so that at least some portion of one or more light-obstructing or light-filtering measures of liquids is caused to be located between one or more light sources and the space distribution of light-modulating filters, optical instruments or light-modulating materials, or said space distribution of materials that change the frequency or color of light passing onto or through them, to emit a different frequency or color of light, thereby controllably modulating properties of light emitted from sa
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: August 13, 2013
    Assignee: Intellectual Properties | Kft
    Inventor: Richard V. Jessop