Patents Examined by Timothy L Rude
  • Patent number: 9933627
    Abstract: An optical system includes: a first optical member having a concave surface that reflects a light having a first circularly polarized light component and transmits a light having a second circularly polarized light component a rotation direction of which is opposite to a rotation direction of the first circularly polarized light component; and a second optical member that transforms the light having the first circularly polarized light component reflected from the first optical member into the light having the second circularly polarized light component to be reflected so as to be incident on the first optical member.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: April 3, 2018
    Assignee: NIKON CORPORATION
    Inventor: Toru Iwane
  • Patent number: 9915812
    Abstract: A compact display module, such as can be used in wearable computing headset applications, includes a microdisplay with a display surface that is virtually imaged by a lens. The lens is positioned to receive light from the display surface of the microdisplay. The lens defines an angled fold, whereby light from a display generated at the display surface is reflected within the lens to thereby form a virtual image of the display in a virtual image plane that is angled non-perpendicularly relative to the display surface of the microdisplay.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: March 13, 2018
    Assignee: Kopin Corporation
    Inventors: Rodney J. Bumgardner, Bor-Yeu Tsaur
  • Patent number: 9898951
    Abstract: A display screen for secure representation of information comprising a background grid with light-emitting background grid elements of a first type and light-emitting or light-blocking background grid elements of a second type. A foreground grid (4) having completely light-transmissive foreground grid elements and light-attenuating foreground grid elements is arranged in front of the background grid. The lateral dimensions of the foreground grid elements, the distance and the lateral position of the foreground grid are matched in relation to the background grid in such a manner that a viewer looking at the foreground grid perceives coded information in a decoded form, on the basis of a contrast difference and/or color difference in relation to those fields of the background grid that are base-coded, only from one direction of view or one view angle range of up to ±50° about the view direction. Further, a method for secure representation of information on such a display screen.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: February 20, 2018
    Assignees: Sioptica GmbH, Secco GmbH
    Inventors: Juergen Schwarz, Sven Emmrich, Ullrich Daehnert
  • Patent number: 9891465
    Abstract: Provided is a liquid crystal display (LCD) apparatus including: a first substrate including a first region realizing an image and a second region which transmits external light; a second substrate facing the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a first polarizer arranged on a surface of the first substrate; and a second polarizer arranged between the second substrate and the liquid crystal layer and comprising a first polarization region positioned in the first region and a second polarization region positioned in the second region and having a polarization axis different from a polarization axis of the first polarization region.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: February 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joonggun Chong, Hyungjune Kim, Hyoungcheol Lee, Wansoon Im, Jonghak Hwang
  • Patent number: 9885920
    Abstract: Disclosed is a liquid crystal display including: a first substrate; a second substrate facing the first substrate; a liquid crystal layer provided between the first substrate and the second substrate; and an alignment layer disposed at at least one of between the first substrate and the liquid crystal layer and between the second substrate and the liquid crystal layer, wherein the alignment layer includes a first region that is hydrophilic and a second region that is hydrophobic are periodically repeated in a direction that is parallel to the first substrate or the second substrate, and the liquid crystal layer includes liquid crystal molecules having a helical structure and a self-aligned liquid crystal additive to form a uniform lying helix (ULH) structure.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: February 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Heung Shik Park, Ki Chul Shin
  • Patent number: 9885926
    Abstract: The present invention discloses a slit electrode for solving the problem that the process margin of the existing slit electrode is relatively low. The slit electrode provided by the present invention comprises: at least one slit electrode unit, the slit electrode unit comprising a plurality of strip electrodes, a slit being provided between two adjacent strip electrodes; wherein each strip electrode has a given average width, the average widths of at least two strip electrodes in the slit electrode unit are not equal. The present invention further discloses an array substrate comprising the slit electrode and a display device.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: February 6, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qiangtao Wang, Hyunsic Choi, Zheng Fang, Yunyun Tian
  • Patent number: 9874678
    Abstract: A liquid crystal display device includes a LCD panel having a first polarizer, a first substrate, a second substrate and a second polarizer are sequentially provided from a front surface side, a frame which surrounds the LCD panel and has a first opening having first to fourth sides, a planar light source disposed on the rear surface side of the LCD panel in the first opening, a plurality of optical sheet groups which are disposed between the planar light source and the LCD panel, and an adhesive layer which has a second opening formed along the first to fourth sides of the frame. A front surface side of the adhesive layer is adhered to the LCD panel along at least the first side, and a rear surface side of the adhesive layer is adhered to the plurality of optical sheet groups and the frame along at least the first side.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: January 23, 2018
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Eiji Oohira
  • Patent number: 9857627
    Abstract: A provided is a liquid crystal display device for reducing power consumption by increasing efficiency of a backlight. The liquid crystal display includes, on a TFT substrate, a semiconductor layer and a gate electrode are laminated via a gate insulating film. A TFT is formed by the semiconductor layer and the gate electrode. A base film is formed of an insulating film and at a lower layer of the semiconductor layer. As seen in plan view, a reflection film is formed on a lower side of the base film at an area corresponding to the TFT. The reflection film is independently formed for each of the TFTs. Each of the reflection films is electrically floating. The reflection film has a reflectance of 70% or more at a lower side thereof. The use efficiency of the light from a backlight can be increased because of the existence of the reflection film.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: January 2, 2018
    Assignee: Japan Display Inc.
    Inventor: Takeshi Sakai
  • Patent number: 9851600
    Abstract: Provided are a liquid crystal display panel and a manufacturing method thereof, and more particularly, a liquid crystal display panel including white pixels and a manufacturing method thereof. The liquid crystal display panel includes: a first substrate and a second substrate facing each other; a liquid crystal layer positioned between the first substrate and the second substrate; a plurality of color filters positioned on the first substrate and representing different colors from each other, in which at least two of the plurality of color filters overlap with each other on the first substrate to form an overlapping portion, and the overlapping portion forms a first spacer; a transparent filter positioned on the first substrate and positioned in a transmitting area of a white pixel; and a second spacer including the same material as the transparent filter.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: December 26, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoung Sun Na, Hee June Kwak, Seok Kyu Yoon, Sang-Uk Lim, Seung Soo Baek, Seong Young Lee, Wan-Soon Im
  • Patent number: 9846325
    Abstract: An array substrate, a touch display panel and a touch display device. The array substrate includes: a substrate; a pixel electrode layer; a common electrode layer, which comprises a plurality of common electrode blocks, wherein the common electrode blocks are operable as touch electrodes; a wiring layer, comprises a plurality of wirings, wherein each of the wirings is electrically connected with a corresponding one of the common electrode blocks, and at least one wiring is each overlapped with at least one common electrode block electrically insulated therefrom; and first bridge structures and auxiliary electrodes disposed in the pixel electrode layer, wherein each first bridge structure is configured for a connection between the wiring and the common electrode block, and each auxiliary electrode is connected with one of the wirings and disposed above the common electrode block insulated from and overlapped with the wiring.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: December 19, 2017
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Quanpeng Yu, Yong Yuan, Danping Wei
  • Patent number: 9841635
    Abstract: A reliability of seal portion of a liquid crystal display device can be improved by the following structure. A liquid crystal display device includes: a TFT substrate which includes a display region and a terminal part, and has an inorganic insulating film formed on an organic passivation film and an alignment film formed over the inorganic insulating film; a counter substrate, the TFT substrate and the counter substrate bonded together by a sealing material formed at a seal part surrounding the display region; and a liquid crystal sealed inside. At the seal part, a transparent conductive oxide film is formed between the inorganic insulating film and the alignment film. The transparent conductive oxide film exists inside an edge of the TFT substrate and hence, the edge of the TFT substrate is free of the transparent conductive oxide film.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: December 12, 2017
    Assignee: Japan Display Inc.
    Inventors: Takenori Hirota, Yasuhiro Kanaya, Hidehiro Sonoda, Toshiki Kaneko
  • Patent number: 9841632
    Abstract: Provided are a liquid crystal display panel, a composite substrate, and a method for fabricating the composite substrate. The composite substrate includes: a substrate, a carbon nanotube layer, a polarizing material and a photoalignment matrix material. The carbon nanotube layer is adhered to a surface of the substrate with the photoalignment matrix material; the carbon nanotube layer includes multiple carbon nanotubes extending in a same direction; the polarizing material is mixed into the photoalignment matrix material, and a molecule arrangement direction of the polarizing material is the same as the extending direction of the carbon nanotube. Multiple grooves arranged in parallel may be formed between carbon nanotubes since the extending direction of the carbon nanotube is the same, and the groove may be used for an initial alignment of liquid crystal molecules.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: December 12, 2017
    Assignees: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Sifan Wei
  • Patent number: 9835889
    Abstract: A display device with compact integrated structural design in a portable information handling system may have a narrow or no border. The display device with compact integrated structural design may include a combined display assembly that is fixed to an A-cover using selected means of attachment. The combined display assembly may internally integrate a backplate, a backlight, a liquid crystal display (LCD) cell, and a cover glass. The cover glass may be direct bonded to the LCD cell without direct attachment to the A-frame.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: December 5, 2017
    Assignee: Dell Products L.P.
    Inventors: Mark Andrew Schwager, Stefan Peana, Deeder M. Aurongzeb, David Michael Meyers
  • Patent number: 9837447
    Abstract: A thin film transistor array panel according to an exemplary embodiment of the invention includes: an insulating substrate; a gate line disposed on the insulating substrate and including a gate pad portion; a data line insulated from and crossing the gate line, and including a source electrode and a data pad portion; a drain electrode facing the source electrode; an organic insulating layer disposed on the data line and the drain electrode, and including a first contact hole; a common electrode disposed on the organic insulating layer, and including a second contact hole; a passivation layer disposed on the common electrode, and including a third contact hole; and a pixel electrode disposed on the passivation layer, and being in contact with the drain electrode, in which the third contact hole is disposed to be adjacent to one surface of the first contact hole for improvement of an aperture ratio and a stable electrode connection.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: December 5, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Hyun Park, Jun Ho Song, Jean Ho Song, Jae Hak Lee
  • Patent number: 9835924
    Abstract: A silicon based terahertz full wave liquid crystal phase shifter is provided. The liquid crystal phase shifter has a first silicon conductive substrate, a second silicon conductive substrate, a plurality of pads, and a liquid crystal. The first and second silicon conductive substrates, instead of the quartz glass and transparent electrode, such as ITO, are used as substrates and to provide electrodes of the liquid crystal phase shifter. Thus, the effect of the liquid crystal phase modulation of the liquid crystal phase shifter in the THz range can be improved.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: December 5, 2017
    Assignee: National Sun Yat-Sen University
    Inventors: Chao-Kuei Lee, Han-Wei Zhang, Tsung-Hsien Lin, Chun-Ta Wang, Jun-Ting Guo
  • Patent number: 9817279
    Abstract: The present invention relates to a display device, comprising: a display unit comprising a pixel layer; a backlight unit; and a modulation unit disposed between the display unit and the backlight unit, wherein the modulation unit comprises a plurality of conductive layers and a liquid crystal layer disposed between the plurality of conductive layers, and the liquid crystal layer comprises a polymer dispersed liquid crystal (PDLC) or a polymer stabilized liquid crystal (PSLC).
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: November 14, 2017
    Assignee: INNOLUX CORPORATION
    Inventors: Yu-Wei Chen, Meng-Chieh Chang, Chia-Liang Hung
  • Patent number: 9810813
    Abstract: A display device includes a display panel, an optical film arranged on an upper portion of the display panel and including first and second intaglio pattern portions having different depths from each other, a bonding member configured to contact at least a part of the display panel and a surface of the first intaglio pattern portion and an air layer configured to fill between a surface of the second intaglio pattern portion and the display panel.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: November 7, 2017
    Assignee: SAMSUNG DISPLAY CO. LTD
    Inventors: Joong Hyun Kim, Min Su Kim, Ju Youn Son, Seung Hwan Chung
  • Patent number: 9804316
    Abstract: A display has an array of display pixels formed from display layers such as one or more polarizer layers, a substrate on which an array of display pixel elements such as color filter elements and downconverter elements are formed, a liquid crystal layer, and a thin-film transistor layer that includes display pixel electrodes and display pixel thin-film transistors for driving control signals onto the display pixel electrodes to modulate light passing through the display pixels. A light source such as one or more laser diodes or light-emitting diodes may be used to generate light for the display. The light may be launched into the edge of a polymer layer or other light guide plate structure. A light guide plate ma include phase-matched structures such as holographically recorded gratings or photonic lattices that direct the light upwards through the array of display pixels.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: October 31, 2017
    Assignee: Apple Inc.
    Inventors: Jean-Jacques Drolet, Wei Chen
  • Patent number: 9798217
    Abstract: Variable liquid crystal devices for controlling the propagation of light through a liquid crystal layer use a frequency dependent material to dynamically reconfigure effective electrode structures in the device. The drive signal source uses pulse-width modulation to set a frequency and an amplitude of the drive signal.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: October 24, 2017
    Assignee: LensVector Inc.
    Inventors: Tigran Galstian, Vladimir Presniakov, Karen Asatryan, Amir Tork, Armen Zohrabyan, Aram Bagramyan
  • Patent number: 9798188
    Abstract: The disclosure provides a detecting accessories of a liquid crystal panel. The detecting accessories comprises a backlight module and two adjusting plates. The backlight module comprises a bottom plate, an edge frame surrounding the bottom plate, a backlight source assembled on the bottom plate, and a diffusion plate disposed opposite to the bottom plate, and the diffusion plate covers the edge frame. Each adjusting plate comprises a carrying section and an assembling section. The two adjusting plates are disposed adjacent with each other. The assembling sections of each adjusting plates are detachably assembled on one side of the edge frame away from the bottom plate. The light of the backlight source emits outward through the diffusion plate. The carrying sections of the two adjusting plates are configured for shading an edge of the diffusion plate for changing an emitting area of the diffusion plate.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: October 24, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Quan Li, Yujun Xiao, Guofu Tang