Particle Suspensions (e.g., Electrophoretic) Patents (Class 345/107)
  • Patent number: 10663834
    Abstract: A constitution of the display device of the invention is shown in the following. The display device includes a pixel unit including TFTs of which the active layer contains an organic semiconductor material for forming channel portions in the opening portions in an insulating layer arranged to meet the gate electrodes. The pixel unit further includes a contrast media formed on the electrodes connected to the TFTs for changing the reflectivity upon the application of an electric field, or microcapsules containing electrically charged particles that change the reflectivity upon the application of an electric field. The pixel unit is sandwiched by plastic substrates, and barrier layers including an inorganic insulating material are provided between the plastic substrates and the pixel unit. The purpose of the present invention is to supply display devices which are excellent in productivity, light in weight and flexible.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: May 26, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yasuyuki Arai
  • Patent number: 10661547
    Abstract: A display laminate which includes a front electrode layer, a display material layer and a protective film layer, wherein the protective film layer and the display material layer are narrower than the front electrode layer and wherein the protective film layer and the display material layer have a common edge with the front electrode layer on a first side and a common edge with each other but not with the front electrode layer on an opposite side.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: May 26, 2020
    Assignee: MARIELLA LABELS OY
    Inventors: Esa Hämäläinen, Tero Kallioinen, Jouko Parppei
  • Patent number: 10656493
    Abstract: A laminate which can serve as either a smart window or a smart mirror is formed using first and second substrates coated with transparent first and second electrodes which are separated by foraminous layer and a third grid-like linear electrode insulated from the first and second electrodes The foraminous layer includes spacers defining a cell space which is filled with a colloidal ink having first and second particles. The first particles have a positive charge and a first color and second particles having a negative charge and a second color different from the first color. By altering the voltages of the first, second and third electrodes, one can achieve different light transmission characteristics which, for example, can alter the color temperature of the light transmitted through the laminate or enhance reflective colors.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: May 19, 2020
    Assignee: University of Cincinnati
    Inventors: Jason Charles Heikenfeld, Sayantika Mukherjee
  • Patent number: 10645807
    Abstract: Methods of and devices for coupling metal woven mesh or metal woven fabric with IC components to make flexible circuits are disclosed. The flexible circuits can be used to make wearable electronic devices, such as a garment with embedded IC chip.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: May 5, 2020
    Assignee: Flextronics AP, LLC.
    Inventors: Weifeng Liu, Anwar Mohammed, Murad Kurwa
  • Patent number: 10643541
    Abstract: The present disclosure relates to a driving circuit of a display panel, a display panel and a display device. The driving circuit includes at least one potential saving unit and at least one column of pixel driving units. The potential saving unit is arranged corresponding to a column of pixel units, and is configured to output a first potential signal based on a voltage of the external preset power supply and save the first potential signal to the first potential output terminal, while outputting a second potential signal and saving the second potential signal to the second potential output terminal.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: May 5, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Minghua Xuan, Shengji Yang, Li Xiao, Dongni Liu, Jie Fu, Pengcheng Lu, Xiaochuan Chen, Lei Wang
  • Patent number: 10599005
    Abstract: The invention provides an electrophoretic medium comprising at least two types of particles having substantially the same electrophoretic mobility but differing colors. The invention also provides article of manufacture comprising a layer of a solid electro-optic medium, a first adhesive layer on one surface of the electro-optic medium, a release sheet covering the first adhesive layer, and a second adhesive layer on an opposed second surface of the electro-optic medium.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: March 24, 2020
    Assignee: E Ink Corporation
    Inventors: Gregg M. Duthaler, Karl R. Amundson, Barrett Comiskey, Alberto Goenaga, John E. Ritter, Michael L. Steiner, Robert W. Zehner
  • Patent number: 10593272
    Abstract: A method for driving an electro-optic display having a front electrode, a backplane, and a display medium including at least three differently-colored particles, wherein the medium is positioned between the front electrode and the backplane. The method includes applying a reset phase and a color transition phase to the display such that the sum of all impulses results in an offset that maintains a DC-balance across the display medium. The invention additionally includes controllers for executing the method.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: March 17, 2020
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Christopher L. Hoogeboom, Kenneth R. Crounse
  • Patent number: 10586499
    Abstract: A color display device in which each pixel can display four high-quality color states. More specifically, an electrophoretic fluid is provided which comprises four types of particles, dispersed in a solvent or solvent mixture, wherein each type of particle has a different charge profile (polarity and magnitude) and a different optical characteristic. When driven with a two-step process, the particles of lower charge magnitude can be driven to the viewing surface while the particles with higher charge magnitude are not viewable at the viewing surface.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: March 10, 2020
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Ming-Jen Chang
  • Patent number: 10580368
    Abstract: A color reflective display device includes a plurality of color sub-pixels and a control circuit. The control circuit is configured to provide a first driving signal to at least one of a plurality of mini-pixels of a first color sub-pixel, such that the at least one of mini-pixels receiving the first driving signal displays a first color, provide a second driving signal to another at least one of the mini-pixels of the first color sub-pixel, such that the another at least one of the mini-pixels receiving the second driving signal displays a second color, and provide a third driving signal to a second color sub-pixel of the color sub-pixels, such that the second color sub-pixel displays a third color.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: March 3, 2020
    Assignee: E Ink Holdings Inc.
    Inventors: Po-Yuan Lo, Tai-Yuan Lee, Pei-Lin Huang
  • Patent number: 10573222
    Abstract: A first display comprises a layer of electro-optic material with first and second electrodes on opposed sides thereof, at least one electrode. One or both electrodes having at least two spaced contacts, and voltage control means are arranged to vary the potential difference between the two spaced contacts attached to the same electrode. A second display comprises a layer of electro-optic material with a sequence of at least three electrodes adjacent thereto. Voltage control means vary the potential difference between the first and last electrodes of the sequence. The electrodes of the sequence alternate between the two surfaces of the layer of electro-optic material, and have edges which overlap with or lie adjacent the preceding and following electrodes of the sequence. The electrodes, other than the first and last, are electrically isolated such that the potential thereof is controlled by passage of current through the layer of electro-optic material. Methods for driving these displays are also provided.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: February 25, 2020
    Assignee: E Ink Corporation
    Inventors: Richard J. Paolini, Jr., Stephen Bull, Seth J. Bishop, Stephen J. Telfer, Karl Raymond Amundson
  • Patent number: 10565942
    Abstract: One example provides a display device. The display device includes an electronic paper display imageable by receiving charges on an imaging surface of the electronic paper display. The display device includes a first ground electrode opposite to a first portion of the imaging surface of the electronic paper display and a second ground electrode opposite to a second portion of the imaging surface of the electronic paper display. Writing to the second portion of the electronic paper display is selectively disableable.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: February 18, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Henryk Birecki, Omer Gila, Napoleon J Leoni, Steven J Simske
  • Patent number: 10559617
    Abstract: Embodiments of the invention include a semiconductor light emitting device including a semiconductor structure. The semiconductor structure includes a light emitting layer disposed between an n-type region and a p-type region. A wavelength converting structure is disposed in a path of light emitted by the light emitting layer. A diffuse reflector is disposed along a sidewall of the semiconductor light emitting device and the wavelength converting structure. The diffuse reflector includes a pigment. A reflective layer is disposed between the diffuse reflector and the semiconductor structure. The reflective layer is a different material from the diffuse reflector.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: February 11, 2020
    Assignee: LUMILEDS LLC
    Inventors: Dawei Lu, Oleg Shchekin
  • Patent number: 10540486
    Abstract: A transaction medium comprises a non-e-paper portion and a passive e-paper display portion to display a first expression of an authentication element in a secure representation. The first expression is related to a second expression of the authentication element, wherein a comparison of the first expression and the second expression determines authentication.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: January 21, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Steven J Simske, Omer Gila, Henryk Birecki, Napoleon J Leoni
  • Patent number: 10517180
    Abstract: A display device includes a flexible display panel; a rolling driver including a rolling shaft connected to the flexible display panel and a rotation motor which rotates the rolling shaft; a housing which receives the flexible display panel in a rolled state, where a first opening is defined in the housing for unrolling and rolling the flexible display panel; a rolling stopper coupled to the flexible display panel; and a rolling controller which controls the rolling driver such that the rotation motor rotates in a clockwise or counterclockwise direction. The rolling controller rotates the rotating motor in a direction opposite to a rotating direction of the rotation motor for a previous rolling to unroll the flexible display panel. The rolling controller rotates the rotating motor in a same direction as a rotating direction of the rotation motor for a previous unrolling to roll the flexible display panel.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: December 24, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byeong Hwa Choi, Seung Bae Lee
  • Patent number: 10509294
    Abstract: An image display medium includes a first and second layer of encapsulated dispersion fluid containing charged particles and a front and rear light-transmissive electrode. The first layer is positioned between the front light-transmissive electrode and the second layer and the second layer is position between the first layer and the rear light-transmissive electrode. The charged particles within the first layer have a color similar to and a charge opposite of the charged particles within the second layer. Alternatively, the charged particles within the first layer may have a color and a charge similar to the charged particles within the second layer and the display medium includes a common conductor positioned between the first and second layer that is configured to drive the charged particles in the first and second layer.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 17, 2019
    Assignee: E Ink Corporation
    Inventor: Stephen J. Telfer
  • Patent number: 10504457
    Abstract: The present invention is directed to methods of passively driving an electrophoretic display. The electrophoretic fluid comprises three types of particles wherein two types particles are charged pigment particles having opposite charge polarities and contrasting colors. The third type of particle is larger in diameter than the first and second types of particles, and is less charged than the first and second types of particles, i.e., the third particle type is substantially uncharged. The electrophoretic medium is driven with two sets of electrodes, each set comprising a number of addressable electrodes.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: December 10, 2019
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Ming Wang, Craig Lin, Hui Du, HongMei Zang, Xiaojia Zhang
  • Patent number: 10495940
    Abstract: A composite electrophoretic display comprised of multiple, stacked, non-planar electrophoretic displays. The individual electrophoretic displays that form the composite display may be driven separately using different driving signals. The electrical connections for the individual displays may be configured to minimize the impact of the electrical connections on the overall aesthetic of the composite display.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: December 3, 2019
    Assignee: E Ink Corporation
    Inventors: George G. Harris, Olga Vladimirovna Barykina-Tassa, Brandon MacDonald
  • Patent number: 10475399
    Abstract: An electrophoretic display comprising a fluid including a first species of particles and a charge control agent disposed between first and second electrodes. When a first addressing impulse have an electrical polarity 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 but having the same electrical polarity, is applied to the medium, the first species of particles move in the opposed direction relative to the electric field.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: November 12, 2019
    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: 10475401
    Abstract: An electrowetting display device comprising an electrowetting element comprising a control system, a first fluid, a second fluid immiscible with the first fluid, and a first and second support plate. A first and second electrode are, respectively, overlapped by a first and second portion of a surface of the first support plate. The control system is operable to, in response to input data indicative of a first grey level, apply a first voltage between the second fluid and the first electrode such that the second fluid is in contact with at least part of the first portion and, subsequently, apply a second voltage between the second fluid and the second electrode to translate the first fluid such that the second fluid is in contact with at least part of the second portion.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: November 12, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Robert Andrew Hayes, Gor Manukyan, Melanie Maria Hubertina Wagemans, Daniel Figura, Bokke Johannes Feenstra, Toru Sakai
  • Patent number: 10475396
    Abstract: Electro-optic displays with reduced remnant voltage, and related apparatus and methods are provided. A remnant voltage of a pixel of an electro-optic display may be discharged by activating the pixel's transistor and setting the voltages of the front and rear electrodes of the pixel to approximately the same voltage for a specified period of time, and/or until the amount of remnant voltage remaining in the pixel is less than a threshold amount. The remnant voltages of substantially all pixels or a subset of pixels in an active matrix electro-optic display may be simultaneously discharged. The simultaneous discharge of the remnant voltages of pixels may take place when the pixels are in a same state, characterized by (1) the transistor of each pixel being active, and (2) the voltages applied to the front and rear electrodes of each pixel being approximately equal.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: November 12, 2019
    Assignee: E Ink Corporation
    Inventors: Teck Ping Sim, Kenneth R. Crounse, Pierre-Yves Emelie, Karl Raymond Amundson
  • Patent number: 10475148
    Abstract: A smart display including one or more groups of smart pixels and at least one graphics engine. The at least one graphics engine is fragmented into GPU (graphics processing unit) minute cores. The GPU minute cores are distributed throughout the smart display. The smart pixels with distributed graphics within the smart display perform deep learning. Libraries stored on GPU minute core embedded memory are used to perform object identification using deep learning. The smart display monitors for pixel degradation and, if necessary, performs pixel enhancement.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: November 12, 2019
    Assignee: Intel Corporation
    Inventors: Kunjal Parikh, Srikanth Kambhatla, Gary Smith, Changliang Wang
  • Patent number: 10459262
    Abstract: According to one embodiment, a display device includes a driver, a first pixel circuit disposed apart from the driver in plan view but electrically connected to the driver, a second pixel circuit separated further from the driver than the first pixel circuit in plan view but electrically connected to the driver, a first pixel electrode overlapping the driver in plan view, a second pixel electrode overlapping the first pixel circuit in plan view, a first relay line electrically connecting the first pixel circuit and the first pixel electrode to each other, and a second relay line electrically connecting the second pixel circuit and the second pixel electrode to each other.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 29, 2019
    Assignee: Japan Display Inc.
    Inventors: Masaya Tamaki, Akihiko Saitoh
  • Patent number: 10455710
    Abstract: A display device including: a display panel configured to display an image; and a winder configured to fix a first end portion of the display panel thereinto, wherein the winder includes a first fixing portion including a first external surface which is curved, and a second fixing portion that includes a second external surface which is curved and that faces the first external surface, wherein the first end portion of the display panel may be interposed between the first external surface and the second external surface.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: October 22, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min-Sung Kim, Tae An Seo, Jung Hun Lee, Jin Hwan Choi
  • Patent number: 10446585
    Abstract: The present invention provides for an electro-optic display having a backplane assembly with at least two electrode layers, a first electrode layer of a first dimension electrically connected to and driving a second electrode layer of a second dimension that is larger than the first dimension. The second electrode layer overlies the first electrode layer, such that the entire viewing area of an electro-optic display may be optically-active. The backplane assembly may have at least one interposer layer disposed between the two electrode layers to electrically connect the first and second electrode layers.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: October 15, 2019
    Assignee: E Ink Corporation
    Inventors: George G. Harris, Stephen J. Telfer, Richard J. Paolini, Jr.
  • Patent number: 10431168
    Abstract: The present invention provides driving methods for a color display device in which each pixel can display four high-quality color states. More specifically, an electrophoretic fluid is provided which comprises four types of particles, dispersed in a solvent or solvent mixture.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: October 1, 2019
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Ming-Jen Chang
  • Patent number: 10426046
    Abstract: A rollable display device includes a roller, a rollable display that is rollable onto the roller in a first direction, and a plurality of thin plates positioned at a rear surface of the rollable display, the thin plates being rollable onto the roller in the first direction along with the rollable display.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: September 24, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Khachatryan Hayk, Ki Hyun Kim, Sun Ho Kim, Jeong Ho Kim, Tae Woong Kim, Jung Hun Lee
  • Patent number: 10416114
    Abstract: A structure of an electrochemical unit includes a substrate, a first metal layer disposed on the substrate, and an array of electrochemical cells disposed on the first metal layer. The array of the electrochemical cells includes a plurality of electrochemical cells. Each of the electrochemical cells includes the first metal layer disposed on the substrate, a first electrode disposed on the first metal layer, a polymer layer disposed on the substrate and adjacent to the first metal layer and the first electrode. A second metal layer is disposed on the polymer layer, and a second electrode is disposed on the second metal layer. A pore is constituted between the polymer layers of every the two electrochemical cells. A cavity located above the first electrode is defined between every the two electrochemical cells, wherein the cavity is communicated with the pore.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: September 17, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jui-Chin Chen, Pei-Jer Tzeng, Tzu-Kun Ku, Yu-Chen Hsin, Yiu-Hsiang Chang
  • Patent number: 10411075
    Abstract: A pixel array, a method for fabricating the same, and an OLED array substrate are disclosed. The pixel array includes a plurality of pixels, wherein each pixel includes four sub-pixels, the four sub-pixels are of the same size and all in a shape of isosceles trapezoid, and the four sub-pixels are arranged into a form of half of a regular hexagon. A display panel having the above structure has a better rotational symmetry, as a result, a high resolution and homogeneity can be achieved for each direction of the display panel.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: September 10, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xiaobo Du
  • Patent number: 10409134
    Abstract: An electronic paper display panel, including a first and second substrate; an electrophoresis layer arranged between the first and second substrates, the electrophoresis layer including black electrophoretic particle, white electrophoretic particle and at least one color electrophoretic particle; a first electrode layer arranged at a side of the first substrate facing the second substrate including multiple first electrodes; a second electrode layer arranged at a side of the second substrate facing the first substrate including multiple second electrodes; and a drive circuit; multiple pixel areas correspond multiple second electrodes; each first electrode includes a first sub-electrode and a second sub-electrode placed in same pixel area, which are insulated from each other, correspond to one second electrode and are connected with drive circuit, the first sub-electrode receives voltage signal different from voltage signal the second sub-electrode receives; the first electrode is common electrode and the seco
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: September 10, 2019
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONIC CO., LTD.
    Inventors: Jinyu Li, Kerui Xi, Zuzhao Xu, Wenqin Xu, Lei Du, Yian Zhou
  • Patent number: 10410592
    Abstract: A driving method for reducing ghosting in an electrophoretic display is provided without prolonging driving waveform time and scintillation by improving a driving waveform design. The method comprises four steps: erasing an original image (S1); activating activity of electrophoretic particle (S2); activating electrophoretic particle (S3); and writing a new image (S4). At the electrophoretic particle activating (S3) stage, the electrophoretic particle activating is carried out for a preset duration time (tx), wherein the voltage of the driving waveform is 0V within the preset duration time (tx).
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: September 10, 2019
    Assignees: Shenzhen Guohua Optoelectronics Co., South China Normal University, Academy of Shenzhen Guohua
    Inventors: Zichuan Yi, Li Wang, Guofu Zhou
  • Patent number: 10403215
    Abstract: An imaging device for a passive e-paper display includes an erasing head to emit ions in a first polarity followed by an opposite second polarity after a first time period. The passive e-paper display is mountable on a support in a spaced apart relationship relative to the erasing head and by which the emitted ions are receivable onto substantially the entire surface of the passive e-paper display. Relative movement occurs between the support and the erasing head at least some of the time during the emission of ions from the erasing head.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: September 3, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Omer Gila, Napoleon J Leoni, Henryk Birecki
  • Patent number: 10401668
    Abstract: A display device comprises a layer of display cells separated from each other by partition walls and filled with a display fluid. The display of the invention is divided into a non-watermark area and a watermark area, the latter forming a watermark. The watermark aims to protect against counterfeiting or to be used for decoration purposes. The watermark is visible at certain viewing angles and/or under certain lighting conditions and it does not interfere with displaying of the regular images. For example, each of the display cells in the watermark area may have a different size from each of the display cells in the non-watermark area. Alternatively, the watermark area differs from the non-watermark area in at least one parameter selected from partition wall height, partition wall width and the shape of each display cell, and the watermark area is divided into at least two parts having differing values of the parameter.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: September 3, 2019
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Bryan Hans Chan
  • Patent number: 10395583
    Abstract: This disclosure is directed to methods, apparatuses, and systems for providing driving signals to present electronic content on an electronic display. The electronic display may include an electronic paper display that utilizes electronic ink to render the electronic content. An electronic signal can be generated by a display controller to drive individual pixels to a black state, a white state, or a gray state in-between the black state and the white state. In some instances, the display controller can provide a first driving signal to set a pixel to a target state, followed by turning a power off for the display. After a predetermined amount of time, a second driving signal can be provided to drive the pixel to the target state, without changing the target state of the pixel.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: August 27, 2019
    Assignee: Amazon Technologies, Inc.
    Inventor: Scott Michael Dylewski
  • Patent number: 10388233
    Abstract: Devices and techniques for electronically erasing an externally addressed electrophoretic drawing device are described. An electronically-erasable drawing device comprises an electro-optic display medium and interdigitated electrodes disposed adjacent one surface of the medium and configured to drive the medium to an intermediate (gray) optical state. A mobile electronic drawing implement may include electrodes configured to apply a fringing electric field to an electro-optic display medium from one side of the medium, the fringing electric field being arranged to drive a portion of the display medium adjacent the implement to an intermediate optical state, the electrodes being movable relative to the medium.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: August 20, 2019
    Assignee: E Ink Corporation
    Inventors: Richard J. Paolini, Jr., Stephen J. Telfer
  • Patent number: 10386690
    Abstract: A media includes a frame and an e-paper display recessed relative to a portion of the frame.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: August 20, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Henryk Birecki, Napoleon J Leoni, Omer Gila
  • Patent number: 10386692
    Abstract: An electrophoretic element according to an embodiment of the present invention includes: a first substrate and a second substrate facing each other; and an electrophoretic layer provided between the first substrate and the second substrate, and has a plurality of pixels. In each pixel, the electrophoretic layer includes a dispersion medium, and a plurality of types of electrophoretic particles dispersed in the dispersion medium. The plurality of types of electrophoretic particles include first electrophoretic particles and second electrophoretic particles that are charged with the same polarity and have different threshold characteristics from each other. In each pixel, the electrophoretic element includes at least three electrodes to which different potentials can be applied.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: August 20, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyuki Moriwaki, Hiromi Katoh
  • Patent number: 10386693
    Abstract: An electrophoretic element according to an embodiment of the present invention includes: a first substrate and a second substrate facing each other; and an electrophoretic layer provided between the first substrate and the second substrate, and has a plurality of pixels. In each pixel, the electrophoretic layer includes a dispersion medium, and a plurality of types of electrophoretic particles dispersed in the dispersion medium. The plurality of types of electrophoretic particles include first electrophoretic particles and second electrophoretic particles that are charged with the same polarity and have different threshold characteristics from each other. In each pixel, the first substrate includes at least three electrodes to which different potentials can be applied.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: August 20, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Hiroyuki Moriwaki
  • Patent number: 10380933
    Abstract: In one embodiment, a display screen includes one or more pixels that are configured to operate in multiple modes. The multiple modes include a first mode in which the one or more pixels modulate, absorb, or reflect visible light and a second mode in which the one or more pixels are substantially transparent to visible light. When the one or more pixels are in the second mode a component behind the display screen is viewable through the one or more pixels.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: August 13, 2019
    Assignee: Samsung Electronics Company, Ltd.
    Inventors: Sergio Perdices-Gonzalez, Sajid Sadi, Pranav Mistry
  • Patent number: 10380931
    Abstract: The present invention is directed to driving methods for a color display device which can display high quality color states. The display device utilizes an electrophoretic fluid which comprises three types of pigment particles having different optical characteristics, and provides for displaying at a viewing surface not only the colors of the three types of particles but also the colors of binary mixtures thereof.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: August 13, 2019
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Jo-Cheng Huang, Heng-Che Chen, Peter B. Laxton, Ming Wang, Ping-Yueh Cheng, HongMei Zang
  • Patent number: 10380955
    Abstract: The invention relates to electrophoretic layers containing at least five different particles, and to driving methods for displaying at least five, and in some embodiments, six different colors at each pixel or sub-pixel. The electrophoretic layers may also contain uncharged neutral buoyancy particles, and the driving methods may include special shaking waveform sequences.
    Type: Grant
    Filed: December 30, 2017
    Date of Patent: August 13, 2019
    Assignee: E INK CALIFORNIA, LLC
    Inventor: Craig Lin
  • Patent number: 10372008
    Abstract: A wavelength selective reflection display (10) comprises a wavelength selective reflection medium (20) and a backing member (30) having a first, non-reflective optical state, and a second, reflective optical state. Both the wavelength selective reflection medium (20) and the backing member (30) are divided into pixels (40, 50, 60), and the backing member (30) is switchable between its first and second optical states on a pixel-by-pixel basis. The pixels of the backing member (30) are substantially aligned with those of the wavelength selective reflection medium (20).
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: August 6, 2019
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Richard J. Paolini, Jr., Michael D. McCreary, David John Cole
  • Patent number: 10353265
    Abstract: This invention relates to electrophoretic fluids, the use of these fluids for the preparation of an electrophoretic display device, and electrophoretic displays comprising such fluids.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: July 16, 2019
    Assignee: Merck Patent GmbH
    Inventors: Nils Greinert, Thomas Bauer, Matthias Koch, Wolfgang Hechler
  • Patent number: 10325974
    Abstract: The present disclosure provides a display substrate, a manufacturing method thereof, and a display device. The display substrate includes a shielding pattern created from a layer identical to a pixel electrode and configured to prevent a display function of a display function layer from being adversely affected by a signal from a signal line.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: June 18, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Like Hu, Xiaoxiang He
  • Patent number: 10319314
    Abstract: A method for addressing a bistable electro-optic display having at least one pixel comprises applying an addressing pulse to drive the pixel to a first optical state; leaving the pixel undriven for a period of time, thereby permitting the pixel to assume a second optical state different from the first optical state; and applying to the pixel a refresh pulse which substantially restores the pixel to the first optical state, the refresh pulse being short relative to the addressing pulse.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: June 11, 2019
    Assignee: E Ink Corporation
    Inventors: Guy M. Danner, Karl R. Amundson, Alexandros Cosmos Arango, Jay Britton Ewing, Robert W. Zehner
  • Patent number: 10317946
    Abstract: The present application relates to the computer technical field, and discloses a portable desktop computer which is capable of solving the technical problem of inconvenient transportation and carrying of the desktop computer. The portable desktop computer comprises a columnar host and a flexible display; a columnar outer surface of the host is provided with a ring groove with which the flexible display is wound, and the host is provided with block pins used for blocking the flexible display within the ring groove. The portable desktop computer is featured with combining the host with the flexible display together for easily carrying and convenient transportation.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: June 11, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE CHANTANI ELECTRONICS CO., LTD.
    Inventor: Yingli Meng
  • Patent number: 10310353
    Abstract: A charge-receiving layer for an e-paper assembly includes a plurality of conductive paths spaced apart throughout an insulative matrix, with each conductive path including at least one elongate pattern of conductive particles.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: June 4, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Doris Chun, Napoleon J Leoni, Henryk Birecki, Omer Gila
  • Patent number: 10307871
    Abstract: In one aspect, a device with dynamic optical properties comprises a fluid transfer component comprising a polymer film with one or more layers; an active region of the fluid transfer component comprising a plurality of fluid channels defined by one or more interior surfaces within the polymeric film. In one embodiment, each fluid channel comprises at least 1 row of fluid channels in a thickness direction of the polymeric film. Each fluid channel comprises a first fluid with a first optical property and the active region has a first optical state, and when the a flow source generates fluid flow for a second fluid with a second optical property different from the first optical property to flow through the fluid channels in the active region, the optical state of the active region changes from a first optical state to a second optical state different from the first optical state.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: June 4, 2019
    Inventor: Zane Coleman
  • Patent number: 10288975
    Abstract: The present invention is directed to an electrophoretic dispersion comprising charged pigment particles, in particular, an electrophoretic dispersion including both uncharged or lightly charged neutral buoyancy particles and uncharged or lightly charged additive particles. The combination improves the performance of an electrophoretic display, in particular the color state stability over time.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: May 14, 2019
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Robert A. Sprague, Bo-Ru Yang, Peter B. Laxton
  • Patent number: 10276109
    Abstract: A method for driving an electro-optic display having a front electrode, a backplane and a display medium positioned between the front electrode and the backplane, the method comprising of applying a first driving phase to the display medium, the first driving phase having a first signal and a second signal, the first signal having a first polarity, a first amplitude as a function of time, and a first duration, the second signal succeeding the first signal and having a second polarity opposite to the first polarity, a second amplitude as a function of time, and a second duration, such that the sum of the first amplitude as a function of time integrated over the first duration and the second amplitude as a function of time integrated over the second duration produces a first impulse offset. The method further comprising applying a second driving phase to the display medium, the second driving phase produces a second impulse offset, wherein the sum of the first and second impulse offset is substantially zero.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: April 30, 2019
    Assignee: E Ink Corporation
    Inventors: Kenneth R. Crounse, Christopher L. Hoogeboom, Stephen J. Telfer
  • Patent number: 10274804
    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: January 9, 2017
    Date of Patent: April 30, 2019
    Assignee: Amazon Technologies, Inc.
    Inventor: Robert Arthur Sprague