Light-controlling Display Elements Patents (Class 345/84)
  • Patent number: 10345575
    Abstract: An electrowetting display device comprises electrowetting pixels. Each of the electrowetting pixels includes a hydrophobic layer portion disposed on a first electrode, an electrolyte solution overlying the hydrophobic layer, and a thin film transistor (TFT) that is switched on to select each of the electrowetting pixels using active matrix addressing, wherein the TFT is in electrical contact with the first electrode. The electrowetting display further includes a second electrode in electrical contact with the electrowetting pixels, and a reset control circuit in electrical contact with the second electrode to provide a reset pulse in unison to the electrowetting pixels.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: July 9, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Jack Shih-Chieh Wei, Siddharth Gupta, Robert Waverly Zehner
  • Patent number: 10325565
    Abstract: An array substrate includes a display region and a non-display region around the display region. The display region comprises a plurality of rows of pixel units arranged sequentially along a first direction and a plurality of gate scanning lines corresponding to the plurality of rows of the pixel units, respectively, and the gate scanning lines extend along a second direction. Cascaded first shift register units are disposed at at least one edge of the non-display region parallel to the second direction, and each of the first shift register units is connected with a corresponding one of the plurality of gate scanning lines; and cascaded second shift register units are disposed at at least one edge of the non-display region parallel to the first direction, and each of the second shift register units is connected with a corresponding one of the plurality of gate scanning line.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: June 18, 2019
    Assignees: Shanghai Tianma Micro-Electronics Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhaokeng Cao, Zhongshou Huang
  • Patent number: 10317787
    Abstract: A display screen includes a filter layer, a fluorescent layer having parallel fluorescent stripes, and an attachment layer between an excitation side of the fluorescent layer and a first side of the filter layer to attach the excitation side of fluorescent layer to the filter layer while providing vertical separation therebetween. The attachment layer includes attachment regions that are separated from each other by lateral spacings such that excitation-side air gaps are formed between areas of the fluorescent layer and the filter layer that correspond to the lateral spacings. During display operation, excitation light received on a second side of the filter layer propagates through to the first side of the filter layer, and at least a portion of the excitation light that propagates from the second side of the filter layer travels through the excitation-side air gaps to excite the fluorescent stripes.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: June 11, 2019
    Assignee: Prysm, Inc.
    Inventors: Robert L. Graves, Michael P. McMahon, Philip J. Ralli
  • Patent number: 10311810
    Abstract: A liquid crystal display device includes a plurality of data lines; a plurality of gate lines and a pixel array including a plurality of subpixels formed of first-color to fourth-color subpixels. The plurality of subpixels has a first arrangement or a second arrangement. The first arrangement is an arrangement in which in each row of the pixel array two of the first-color to fourth-color subpixels is interleaved. The second arrangement is a different arrangement than the first arrangement in which in each row of the pixel array two of the first-color to fourth-color subpixels are interleaved. A data driver is configured to drive the pixel array according to a first driving method when the pixel array has the first arrangement and drive the pixel array according to at least one second driving method that is different from the first driving method when the pixel array has the second arrangement.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: June 4, 2019
    Assignee: LG Display Co., Ltd.
    Inventor: Wookyu Sang
  • Patent number: 10242623
    Abstract: An organic light emitting display apparatus according to an embodiment includes a thermal sensor configured to sense temperature and a controller including a first leakage current compensation unit configured to supply a first compensation signal to a plurality of sub-pixels based on the sensed temperature from the thermal sensor and a second leakage current compensation unit configured to supply a second compensation signal, which is different from the first compensation signal, wherein the controller compensates an amount of leakage current of the plurality of sub-pixels according to the sensed temperature.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: March 26, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Kyuil Han
  • Patent number: 10229638
    Abstract: An image display device includes: a pixel array part formed of first to fourth scanning lines arranged in rows, signal lines arranged in columns, pixel circuits in a matrix connected to the scanning lines and signal lines, and a plurality of power source lines which supplies first to third potentials necessary for the operations of pixel circuit; a signal part which supplies a video signal to the signal lines; and a scanner part which supplies a control signal to the first to fourth scanning lines, and in turn scans the pixel circuit for every row, wherein the pixel circuits include a sampling transistor, a drive transistor, first to third switching transistors, a pixel capacitance, and a light emitting device, and a channel length of the drive transistor is made longer than a channel length of the switching transistors to suppress fluctuations in threshold voltage.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: March 12, 2019
    Assignee: Sony Corporation
    Inventors: Junichi Yamashita, Yutaka Mitomi, Tetsuo Minami, Takao Tanikame
  • Patent number: 10206073
    Abstract: A call switching method and a mobile device are provided that rapidly and conveniently switch calls. The method includes performing a first operation; receiving an event for a second operation that is different from the first operation, while the first operation is being performed; detecting a movement of the mobile device; and performing the second operation, based on determining that the detected movement satisfies a condition.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: February 12, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Dayama Dwarkaprasad, Das Kumarbrata
  • Patent number: 10204546
    Abstract: A display device includes a first pixel group having first, second, third, and fourth pixels arranged along a column direction, and a second pixel group having fifth, sixth, seventh, and eighth pixels arranged along the column direction. A gate line is connected to the first, second, third, fourth, fifth, sixth, seventh, and eighth pixels. A first data line is connected to the first pixel, the third pixel, the fourth pixel, and the sixth pixel, and a second data line is connected to the second pixel, the fifth pixel, the seventh pixel, and the eighth pixel. The first pixel group and the second pixel group are alternately disposed along a row direction. This arrangement allows inversion driving wherein the first data line receives a voltage having a different polarity from that of the second data line so as to reduce line flickering and reduce power consumption in the display device.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: February 12, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sungman Kim, Junho Song, Seongsu Lim, Taehyung Hwang
  • Patent number: 10185058
    Abstract: The present invention relates to protection films comprising an optical film suitably sized for an illuminated display device, the optical film having perimeter surface portions defining a central region. The protection film further comprises a pressure sensitive adhesive layer at the perimeter surface portions of the optical film. The optical film and/or pressure sensitive adhesive layer has been adapted such that the at least the central region of the optical film contacts the illuminated display device or the central region of the optical film is bonded to the illuminated display device by means of a self-wetting layer. The protection film may be preassembled or may be provided as a kit, the kit comprising an optical film and a double-faced pressure sensitive tape.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: January 22, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas M. Snyder, Michelle L. Toy, Scott M. Tapio, Audrey A. Sherman, Joan M. Noyola, Patrick E. Bisek, John P. Baetzold, John J. Stradinger
  • Patent number: 10182224
    Abstract: A method for creating 3D image is provided. First, capture device, subject to be captured, and lenticular array are provided. Lenticular array comprises strip-shaped lenticular lenses, subject is disposed between capture device and lenticular array, length of a bottom of each lenticular lens is 2L, and center of the bottom is set as 0. Lens of the capture device is aimed at a top of one of lenticular lenses and ?xL of bottom coordinate of lenticular lens, and the value of x is smaller than 1 but greater than 0. Capture device is turned with top of lenticular lens as center to capture the subject until lens of capture device is aimed at xL of bottom coordinate of lenticular lens. Pixel from ?L to ?xL and from L to xL of bottom coordinate is mapped with pixel from ?xL to 0 and from xL to 0 captured by capture device.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: January 15, 2019
    Inventors: Yu-Hsuan Lin, Tang-Hung Po
  • Patent number: 10162170
    Abstract: An optical device includes: an excitation light source; a first light transmitter that transmits excitation light emitted from the excitation light source; a fluorescent light part that is disposed on a surface of the first light transmitter opposite a surface through which the excitation light enters, and emits fluorescent light from the excitation light; a second light transmitter that interposes the fluorescent light part with the first light transmitter, and transmits light emitted from the fluorescent light part; a light transmission fiber that guides the light exiting from the second light transmitter; and a microfabricated film that is disposed on a side of the second light transmitter closer to the light transmission fiber, and collects, toward the light transmission fiber, the light emitted from the fluorescent light part.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: December 25, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuyuki Yamae, Shintaro Hayashi
  • Patent number: 10156351
    Abstract: A temperature control device includes a first light source unit; a second light source unit, a temperature control effort for which is different from a temperature control effort for the first light source unit; a heat exchanger plate in contact with the first light source unit and the second light source unit; a single temperature control element configured to control temperature of the first light source unit and temperature of the second light source unit via the heat exchanger plate; and a thermal resistance adjustment part configured to adjust at least one of a value of a thermal resistance between the temperature control element and the first light source unit and a value of a thermal resistance between the temperature control element and the second light source unit.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: December 18, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masafumi Takahashi, Naoyuki Yamashita
  • Patent number: 10153461
    Abstract: A display panel includes a display device, a first anti-reflection layer and a cover layer. The first anti-reflection layer is disposed over the display device, wherein the first anti-reflection layer comprises a first structural layer including a plurality of first protrusion structures opposite to the display device. The cover layer is disposed over the first anti-reflection layer.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: December 11, 2018
    Assignee: INT TECH CO., LTD.
    Inventor: Yu-Chen Liu
  • Patent number: 10147349
    Abstract: Architecture and designs of display devices are described, where the display devices possesses high spatial resolution as well as high intensity resolution and may be readily used in various display applications. According to one aspect of the present invention, a display device includes an array of image elements, each of the image elements further includes an array of sub-image elements. A portion of an image element area, namely some of the sub-image elements, is turned on, which has the same perceived brightness level of turning on an entire image element for a specific time. In addition, various designs of an image element or a sub-image element are described.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: December 4, 2018
    Inventors: Darwin Hu, Tsung-Lu Syu
  • Patent number: 10146060
    Abstract: A display apparatus is provided. The display apparatus includes a display panel; a backlight configured to irradiate visible ray to the display panel in a 2D mode, and configured to irradiate ultraviolet ray to the display panel in a 3D mode; and a 3D film disposed between the display panel and backlight, wherein the 3D film comprises: a pattern formed by a plurality of lines distanced from one another by a predetermined distance; and a coating layer that is formed on one side of the plurality of lines pattern and transmits or reflects light patterned by the plurality of lines pattern, per line. Accordingly, it is possible to prevent deterioration of resolution of a screen image, provide a simple structure and enable a change to and from a 2D mode and a 3D mode.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: December 4, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seon-deok Hwang, Farid Mukhtarov
  • Patent number: 10126237
    Abstract: An inspection apparatus comprises an illumination system (12) for illuminating a target structure with illuminating radiation and a collection system for collecting the illuminating radiation after it has been scattered by the target structure. A programmable spatial light modulator (713) comprises an array of movable mirror elements (742) in a conjugate pupil plane (P?) of the illumination system. Between the array of mirror elements and the target a common optical path is defined forming part of the illumination system and the collection system. Each mirror element is movable between a first position where it reflects illuminating radiation into the common optical path and a second position where it reflects radiation from the common optical path toward a detector (19, 23). Various combinations of illumination aperture and collection aperture can be defined without the light losses associated with beam splitters and transmissive spatial light modulators.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: November 13, 2018
    Assignee: ASML Netherlands B.V.
    Inventor: Gerbrand Van Der Zouw
  • Patent number: 10120183
    Abstract: A display device or optical switch, based on layer break up or layer displacement having at least two different states, in which one fluid, e.g., oil, in a first state adjoins at least a first support plate, and in a second state another fluid at least partly adjoins the first support plate. Sub-picture elements are separated by areas having a hydrophilic surface.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: November 6, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Bokke Johannes Feenstra, Robert Andrew Hayes, Ivo Godfried Jozef Camps
  • Patent number: 10095099
    Abstract: A display screen includes a filter layer, a fluorescent layer having parallel fluorescent stripes, and an attachment layer between an excitation side of the fluorescent layer and a first side of the filter layer to attach the excitation side of fluorescent layer to the filter layer while providing vertical separation therebetween. The attachment layer includes attachment regions that are separated from each other by lateral spacings such that excitation-side air gaps are formed between areas of the fluorescent layer and the filter layer that correspond to the lateral spacings. During display operation, excitation light received on a second side of the filter layer propagates through to the first side of the filter layer, and at least a portion of the excitation light that propagates from the second side of the filter layer travels through the excitation-side air gaps to excite the fluorescent stripes.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 9, 2018
    Assignee: Prysm, Inc.
    Inventors: Robert L. Graves, Michael P. McMahon, Philip J. Ralli
  • Patent number: 10054838
    Abstract: A light control system is provided with a spatial light modulator of a liquid-crystal type, an input unit, and a controller. The input unit is configured to input a light to the spatial light modulator. The controller is configured to cause the spatial light modulator to function as a diffraction grating by electrically controlling the spatial light modulator. The controller is configured to change a path of a diffracted light from the spatial light modulator corresponding to the light input from the input unit by changing a shape of the diffraction grating.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: August 21, 2018
    Assignee: Santec Corporation
    Inventor: Yasuki Sakurai
  • Patent number: 9990887
    Abstract: A pixel driving circuit is provided. The pixel driving circuit includes a driving transistor (M1), a storage capacitor (Cs) and a data writing unit. The data writing unit is configured to receive an nth-row scanning signal (Vscan (n)) and apply the data voltage (Vdata) to the gate electrode of the driving transistor (M1) in the case that the nth-row scanning signal (Vscan (n)) is valid. The pixel driving circuit further includes: a reverse control unit, receiving an (n?2)th-row scanning signal (Vscan (n?2)) and connected to the cathode of the OLED, and configured to control the cathode of the OLED to receive the (n?2)th-row scanning signal (Vscan (n?2)) in the case that the (n?2)th-row scanning signal (Vscan (n?2)) is valid. A voltage of the (n?2)th-row scanning signal (Vscan (n?2)) is greater than the driving voltage (Vdd), and n is an integer greater than 2.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: June 5, 2018
    Assignees: BOE TECHNOLOGY GROUP, CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Peng Chen, Xinxia Zhang
  • Patent number: 9978335
    Abstract: A display apparatus includes gate lines extending in a first direction, data lines extending in a second direction crossing the first direction, first color pixels, and second color pixels. A first color pixel arranged in an f-th column between an f-th data line and an (f+1)th data line is connected to one of the f-th data line and the (f+1)th data line. A first color pixel arranged in a g-th column between a g-th data line and a (g+1)th data line is connected to one of a (g?1)th data line and a (g+2)th data line. First color pixels in a first color pixel diagonal group receive data voltages having a same polarity. Second color pixels in a second color pixel diagonal group receive data voltages having a same polarity.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: May 22, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jai-hyun Koh, Jin-kyu Park, Seokyun Son, Kuk-hwan Ahn, Joon-chul Goh, Bonghyun You
  • Patent number: 9953591
    Abstract: Systems, apparatuses, and methods for driving a split display with multiple display pipelines. Frames for driving a display are logically divided into portions, a first display pipeline drives a first portion of the display, and a second display pipeline drives a second portion of the display. Each display pipeline generates dither noise for each frame in its entirety but only utilizes dither noise for the portion of the frame which is being driven to its respective portion of the display. This approach prevents visual artifacts from appearing at the dividing line between the first and second portions of the display.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: April 24, 2018
    Assignee: Apple Inc.
    Inventors: Peter F. Holland, Brijesh Tripathi, Hari Ganesh R. Thirunageswaram
  • Patent number: 9928798
    Abstract: A voltage control method and device for electrodes, wherein the method includes inputting a varying voltage signal to common electrodes on an array substrate. The solution of the present application may avoid the problem of greenish picture of products due to influence of data line voltage on common electrodes.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 27, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yoon Sung Um, Hyun Sic Choi, Zhiqiang Xu, Hui Li
  • Patent number: 9927641
    Abstract: A flexible display panel includes a flexible substrate including a first region including a display region and having a curved display surface, and a plurality of non-display regions that is located outside the display region and including a second region located outside the first region and folded in a direction different from a display direction of the first region, and an encapsulation member for encapsulating the display region along the curved display surface.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: March 27, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Un Jin, Woo-Jong Lee, Yang-Wan Kim, Young-Sik Kim, Jun-Sang Lyu, Sang-Min Kim
  • Patent number: 9892678
    Abstract: Provided is an OLED display device that is in a black mode in which a threshold voltage of a driving TFT need not accurately be sensed. Further, a low voltage value of zero or less is constantly and continuously supplied to a data line during an initialization period, a sampling period, and a programming period in a pixel. As a result, when the pixel is driven in the black mode, a reference voltage and a data voltage having different values are not alternately supplied to the data line to minimize power consumption.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: February 13, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Janghoon Song, SeokHee Jeong, ChangHeon Kang, Jung-Min Lee
  • Patent number: 9892683
    Abstract: An electroluminescent (EL) display apparatus and manufacturing method are provided. A display screen includes gate signal lines which are arranged to intersect source signal lines. A pixel corresponds to each intersection of the gate signal lines and the source signal lines. Each pixel includes: an EL device; a driving transistor to supply a current to the EL device; a first switch transistor through which the current is supplied by the driving transistor to the EL device; a second switch transistor provided to supply, to the driving transistor, an image signal supplied to a corresponding one of the source signal lines; a third switch transistor provided between a gate terminal and a drain terminal of the driving transistor; and a capacitor connected to the gate terminal of the driving transistor for holding the image signal. The third switch transistor has a multi-gate structure.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: February 13, 2018
    Assignee: JOLED INC.
    Inventors: Hiroshi Takahara, Hitoshi Tsuge
  • Patent number: 9865206
    Abstract: Provided are a liquid crystal display device and a driving method therefor that do not cause problems such as occurrence of flicker even when performing pause driving. When an off signal Soff instructing to turn off power is inputted, a polarity bias value W at the power-off is stored in a balance storage circuit. When the power is turned on again, the polarity bias value W is read from the balance storage circuit and provided to a balance control circuit. The balance control circuit starts insertion of a pause frame period to cancel out the polarity bias value W. By this, decrementing the polarity bias value W by “1” every insertion of a pause frame period is repeated. Then, at a point of time when the polarity bias value W becomes “0”, insertion of a pause frame period is ceased and normal pause driving is performed.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: January 9, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Jin Miyazawa, Kouji Kumada, Norio Ohmura, Noriyuki Tanaka, Tatsuhiko Suyama, Kentaroh Uemura
  • Patent number: 9851616
    Abstract: A method for directing light beams includes generating a light beam along a light path. A voltage differential is created by generating a voltage in a first and second linear electrode contacts arranged such that the first and second linear electrical contacts alternate with each other. The light path is altered by passing the light beam through a liquid crystal device coupled to the first and second linear electrical contacts.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: December 26, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Sajjad A. Khan
  • Patent number: 9830006
    Abstract: Embodiments of the invention provide a handwritten type electronic paper display and a manufacture method thereof. The handwritten type electronic paper display comprises: a first electrode substrate (1) and a second electrode substrate (2) having a same pixel electrode matrix structure, an electronic paper thin film (3), a flexible printed circuit (4), a stylus (5) and an electrical source. The electronic paper thin film (3) is bonded onto an upper surface of the first electrode substrate (1), a common electrode of the electronic paper thin film is electrically connected to a negative electrode of the electrical source; the second electrode substrate (2) is fixed on the electronic paper thin film (3) in a thin film manner; the flexible printed circuit (4) is adapted for electrically connecting pixels of the first electrode substrate (1) to corresponding pixels of the second electrode substrate (2); and the stylus (5) is electrically connect to a positive electrode of the electrical source.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: November 28, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Danna Song, Zhuo Zhang
  • Patent number: 9773444
    Abstract: Each modulator of an image projector includes multiple pixels arranged in rows and columns, switchable independently of each other into a first state, in which light incident on them is used to generate an image, and into a second state, in which light incident on them is not used to generate an image. At least one first pixel is assigned to each second pixel such that the imaging optical system a) strikes the second pixel with light from the respective assigned first pixel when the assigned first pixel is switched into the first state, in order to illuminate the second pixel actively, and b) does not strike the second pixel it with light from the respective assigned first pixel when the assigned first pixel is switched into the second state, in order not to illuminate the second pixel actively. A control unit that controls the modulators is also disclosed.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: September 26, 2017
    Assignee: Carl Zeiss AG
    Inventors: Bryce Anton Moffat, Christoph Nieten, Enrico Geiβler, Alexander Gratzke, Axel Krause
  • Patent number: 9728111
    Abstract: The present disclosure provides a display drive method for driving a 3D display device. The method comprises: dividing a first view and a second view to be displayed into a plurality of theoretical pixel units, respectively, and determining a respective gray value corresponding to a color of each type of subpixels in original display information corresponding to each theoretical pixel unit; and for each subpixel of each view, determining brightness of the subpixel based on respective gray values corresponding to the color of the subpixel in the original display information corresponding to respective theoretical pixel units which are covered by a rectangular sampling region of the subpixel and belong to the view. The present disclosure further provides a display drive apparatus and a method and apparatus for generating a sampling region.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: August 8, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Renwei Guo, Xue Dong
  • Patent number: 9709809
    Abstract: Disclosed herein is an optical position adjustment method of a head mounted display, the head mounted display including (a) an eyeglass type frame worn on the head of a viewer, and (b) two image display devices for the right and left eyes attached to the frame, and each of the image display devices including (A) an image forming device, and (B) an optical device adapted to receive, guide and emit light emitted from the image forming device, wherein the optical position adjustment method includes the step of: controlling an image signal that is supplied to the image forming device making up at least one of the image display devices so as to control the position of the image displayed on the optical device making up at least one of the image display devices and adjust the mutual positions of the two images.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: July 18, 2017
    Assignee: Sony Corporation
    Inventors: Tetsuyuki Miyawaki, Ikuo Matsumura
  • Patent number: 9699422
    Abstract: Techniques and optically excited light-emitting devices based on phosphors are provided to use phosphor materials which absorb excitation light to emit visible light and include a composite phosphor material including two or more different transition metal compounds that, under optical excitation of the excitation light, emit visible light at spectrally close but different spectral wavelengths or bands that spectrally overlap to produce a desired color.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: July 4, 2017
    Assignee: PRYSM, INC.
    Inventor: Sergey A. Bukesov
  • Patent number: 9685121
    Abstract: An electrowetting display device includes an electrowetting pixel cell and a driving circuit. The electrowetting pixel cell including a polar liquid and a non-polar liquid disposed between a common electrode and a pixel electrode, the pixel electrode configured to receive a fixed voltage and the common electrode configured to receive a variable voltage that varies according to an image signal. The driving circuit configured to control an operation of the electrowetting pixel cell by, providing an image signal to the electrowetting pixel cell at a display interval where the electrowetting pixel cell displays an image, and providing a reset voltage to the electrowetting pixel cell at a reset interval. An absolute value of a difference between the voltage applied to the pixel electrode and the reset voltage is greater than that of a difference between the voltage applied to the pixel electrode and the voltage applied to the common electrode.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: June 20, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myoung-hoon Jung, Jung Woo Kim, Young-jun Yun
  • Patent number: 9659520
    Abstract: A gamma correction method adapted for a liquid crystal display panel is provided. The gamma correction method includes the following steps. A reference gamma curve is provided. The LCD panel is lighted up with at least one of primary-color frames. Gamma voltages of the primary-color frame are set for the LCD panel based on the reference gamma curve to obtain at least one primary-color gamma curve. The gamma correction is performed on the LCD panel based on the at least one primary-color gamma curve or a linear combination curve of the at least one primary-color gamma curve. By using the gamma correction method, the LCD panel could be allowed to provide good image quality.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: May 23, 2017
    Assignee: Himax Display, Inc.
    Inventors: Sheng-Jen Hsiao, Chia-Lin Wu
  • Patent number: 9612508
    Abstract: An electronic device is provided, which includes: a first component which includes a first portion and a second portion opposite to the first portion, with the thickness of the first component is gradually decreased from the first portion to the second portion; a display unit arranged on a first surface of the first component; and a projection component arranged on the first portion.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: April 4, 2017
    Assignee: Lenovo (Beijing) Co., Ltd.
    Inventors: Yuming Lan, Xiang Gao
  • Patent number: 9589507
    Abstract: The disclosure discloses a driving circuit for AMOLED consisting essentially of a scanning line for providing a scanning voltage; a reverse scanning line for providing a reverse scanning voltage reverse to the scanning voltage; a data line for providing a data voltage; a storage capacitor; and a CMOS transmission gate having two control terminals, an input terminal and an output terminal. The two control terminals are respectively electrically coupled to the scanning line and the reverse scanning line. The input terminal is electrically coupled to the data line. The output terminal is electrically coupled to the storage capacitor. The CMOS transmission gate is configured to couple the data voltage to the storage capacitor via control of the scanning voltage and the reverse scanning voltage.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: March 7, 2017
    Assignee: EverDisplay Optronics (Shanghai) Limited
    Inventor: Yu-Hsiung Feng
  • Patent number: 9588335
    Abstract: An electrowetting display device includes a base substrate, a hydrophobic layer disposed on the base substrate and including at least about 49 atomic percent (at %) of fluorine atoms in a surface thereof, a wall disposed on the base substrate which partitions a pixel area, and an electrowetting layer that includes a first fluid and a second fluid, which are disposed in the pixel area and are immiscible with each other. The second fluid has an electrical conductivity or a polarity. The electrowetting display device further includes an electronic device is configured to apply an electric field to the electrowetting layer to control the electrowetting layer.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: March 7, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Myunghwan Kim, Byeong-Jin Lee, Sang-Il Kim
  • Patent number: 9569997
    Abstract: A display device includes a timing control circuit, a driving circuit, a display panel, and a DC voltage converter. The timing control circuit generates a data signal based on an image signal. The driving circuit generates a first conversion control signal and a second conversion control signal representing a status of the first conversion control signal. The driving circuit generates a driven signal based on the data signal and is powered by a first DC voltage. The display panel is powered by a second DC voltage. The DC voltage converter includes first and second DC voltage conversion circuits. The first DC voltage conversion circuit generates the first DC voltage based on an external voltage. The second DC voltage conversion circuit generates the second DC voltage based on the external voltage. The DC voltage converter executes time-shared control of the first and second DC voltage conversion circuits based on the first and second conversion control signals.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: February 14, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Bo-Young An
  • Patent number: 9570006
    Abstract: An organic light-emitting display device which divides each frame into a plurality of sub-frames and represents gray levels based on the sum of the lengths of one or more sub-frames during which light is emitted, the organic light-emitting display device comprising a display unit including a plurality of pixels arranged in a matrix, a scan driver configured to provide a scan signal to the display unit during each sub-frame period and a precharge voltage unit configured to provide a precharge voltage to the pixels, wherein the pixels are divided into a first pixel column block including a pixel receiving the scan signal before the other pixels and a second pixel column block next to the first pixel column block in a direction of the application of the scan signal and the precharge voltage is selectively provided to pixels included in the first pixel column block.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: February 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Woo Song, Jae Hoon Lee, Mi Young Kim, Do Hyung Ryu, Hae Goo Jung
  • Patent number: 9558689
    Abstract: A pixel structure includes a plurality of red sub-pixels, white sub-pixels, blue sub-pixels and green sub-pixels, which are arranged to form a plurality of first sub-pixel cells and second sub-pixel cells. The first and second sub-pixel cells may be arranged to form a plurality of pixel cells. The pixel cells may be arranged in the vertical direction repeatedly to form a plurality of pixel array cells. The pixel array cells may be arranged in the horizontal direction repeatedly to form a plurality of pixel arrays. The pixel structure further includes a supplement pixel array disposed in the pixel arrays according to a preset mode and configured to supplement polarity inversion in the pixel structure. The sub-pixels with a same color in a same row in a same signal frame may not have a same polarity, thereby reducing flicker and horizontal crosstalk of images and improving the image display quality.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: January 31, 2017
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Kang Yang, Jun Ma, Tianyi Wu, Hao Chen
  • Patent number: 9525988
    Abstract: A call switching method and a mobile device are provided that rapidly and conveniently switch calls. The method includes establishing, by the mobile device, a first call with a first device; receiving, by the mobile device, a request for a second call from a second device, during the first call; informing a user of the mobile device of the call request; determining, by the mobile device, whether the user moves the mobile device from a first ear to a second ear; and accepting, by the mobile device, the second call with the second device, when the mobile device is moved from the first ear to the second ear.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: December 20, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Dayama Dwarkaprasad, Das Kumarbrata
  • Patent number: 9500866
    Abstract: A method and device for eye gaze tracking has coincident display and imaging channel with shared field of view; a pupil forming/collimating subsystem that is part of the imaging channel; and a microdisplay that is part of the imaging channel. The method and device enable simultaneous display and eye tracking by using a pond of mirrors in a micromirror array.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: November 22, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Vikrant R. Bhakta
  • Patent number: 9496682
    Abstract: According to the present invention there is provided a method of operating a laser comprising the steps of; defining an intensity value (KVIDEO red, KVIDEO green, KVIDEO blue) for a light beam which is to be output from the laser; determining if the defined intensity value is greater than, or less than, a threshold intensity (KTH red, KTH green, KTH blue) for the laser, wherein the threshold intensity is the intensity of the light which is output from the laser when the input current to the laser is equal to the threshold current (ITH red, ITH green, ITH blue) of the laser, wherein the threshold current (ITH red, ITH green, ITH blue) of the laser is an input current value below which the laser would operate in its light emitting region and equal to, or above which, the laser will operate in its laser region; operating the laser using current from at least a DAC current source if the defined intensity value (KVIDEO red, KVIDEO green, KVIDEO blue) is greater than the threshold intensity (KTH red, KTH green, KTH
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: November 15, 2016
    Assignee: INTEL CORPORATION
    Inventors: Nicolas Abele, Mohammed Adham
  • Patent number: 9465206
    Abstract: Subject matter disclosed herein relates to improving a contact diameter of an adhesive/sealing material on surfaces of substrates by altering rheological properties of the adhesive/sealing material. An electrowetting display device comprises a first substrate and a second substrate, a first fluid and a second fluid disposed between the first substrate and the second substrate, wherein the first fluid is immiscible with the second fluid. An adhesive/sealing material comprising UV curable epoxy glue is in contact with the second fluid and couples the second substrate to the first substrate. The adhesive/sealing material further comprises silica particles in a range of 1-6% mass fraction of silica that alter rheological properties of the UV curable epoxy glue.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: October 11, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Maurice Hendrikus Hubertinus Thijssen, Jeroen Cornelis van der Gaag
  • Patent number: 9459444
    Abstract: An electrowetting display device includes a first base substrate, a second base substrate facing the first base substrate, an electrowetting layer that includes a first fluid and an electrically conducting second fluid that are immiscible with each other, black partition walls disposed on the first base substrate to partition a display area into pixel areas, and an electronic device that applies a voltage to the electrowetting layer to control the electrowetting layer. The partition walls restrict a flow of at least one of the first fluid or the second fluid.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: October 4, 2016
    Assignee: Amazon Technologies, Inc.
    Inventor: Tae Hyung Hwang
  • Patent number: 9429790
    Abstract: An array substrate and a liquid crystal display device are provided. The array substrate (11) comprises a first substrate (110) and a switch element (112) disposed on an inner side of the first substrate (110), and further comprises a polarizing light-emitting layer (111), the polarizing light-emitting layer (111) has an EL mode. In the liquid crystal display device (1), the polarizing light-emitting layer (111) with an EL mode is disposed in the array substrate (11), therefore, no backlight is required and the power consumption of the liquid crystal display device (1) is further reduced.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: August 30, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Miki Kashima, Teruaki Suzuki
  • Patent number: 9430972
    Abstract: An electrowetting display device has at least one display element. The method of driving the display device comprises receiving data representing a display effect for display by the element. A driving scheme is selected for the display element in dependence on a characteristic of the data. The driving scheme is selected from at least an analog driving scheme and a pulse width modulation driving scheme.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: August 30, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Henricus Petronella Maria Derckx, Jozef Elisabeth Aubert, Johannes Wilhelmus Hendrikus Mennen
  • Patent number: 9401108
    Abstract: A data driver supplies a data signal to a display panel to control luminance of a plurality of pixels. The data signal comprises a plurality of frames, and each of the frames comprises a plurality of sub-frames. Each of the sub-frames comprises an addressing time, followed by an emission time, followed by an erase time. Subpixels each include a first scan line switch controlled by the first scan line signal to turn on during the addressing time of each sub-frame and to turn off during the emission time and the erase time of each sub-frame. A second scan line switch is controlled by a second scan line signal to provide a discharge path to discharge the storage capacitor during the erase time of each sub-frame.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: July 26, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dongwon Park, Yongchul Kwon
  • Patent number: 9400405
    Abstract: A method for aligning optical layers of a multi-layer display includes displaying a dark screen image on each of a plurality of transmissive pixel arrays separated from each other by spacing regions. The transmissive pixel arrays are disposed on a display layer of the multi-layer display. The display layer is illuminated with a plurality of illumination sources of an illumination layer disposed behind the display layer. Each of the illumination sources corresponds to one of the transmissive pixel arrays to illuminate the corresponding one of the transmissive pixel arrays. An illumination pattern is cast onto a screen layer disposed in front of the display layer. The illumination pattern includes bright regions due to overlapping illumination cast from adjacent ones of the transmissive pixel arrays. The bright regions of the illumination pattern cast onto the screen layer are analyzed to identify misalignments between the display layer and the illumination layer.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: July 26, 2016
    Assignee: Google Inc.
    Inventors: Behnam Bastani, Peyman Milanfar