Dual Function Layer Or Element Patents (Class 349/162)
  • Patent number: 10732453
    Abstract: The embodiments of the present disclosure relate to a display panel, a method of manufacturing therefor, and a display device. The display panel includes: a first substrate, a second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate; a color film layer disposed on the side of the first substrate adjacent to the liquid crystal layer, the color film layer including a color filter layer, a black matrix, and a first reflector; a first polarizer and a second polarizer, which are respectively disposed on the first substrate and the second substrate; a light absorbing element disposed on the side of the second substrate away from the liquid crystal layer; and a backlight source disposed below the second substrate. The display panel provided by the embodiments of the present disclosure has a better display effect in a bright environment and a dark environment.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: August 4, 2020
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Yingtao Wang
  • Patent number: 10488707
    Abstract: A diffusion element and manufacturing method thereof, a backlight module and a display device are provided. The diffusion element including a non-woven fabric diffusion sheet, wherein the non-woven fabric diffusion sheet includes a substrate of non-woven fabric and a diffusion particle layer attached to at least one surface of the substrate. The diffusion element has the advantages of low cost, high yield and simple processes.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: November 26, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., K-TRONICS (SUZHOU) TECHNOLOGY CO., LTD.
    Inventors: Zhonghua Liu, Li Wang, Zhifu Zheng
  • Patent number: 10175528
    Abstract: An aspect of the present invention relates to a liquid crystal panel including a visible side polarizing plate, a liquid crystal cell, and a backlight side polarizing plate, in which the backlight side polarizing plate is a reflective polarizing plate of which a degree of polarization P550 nm with respect to light at a wavelength of 550 nm is greater than or equal to 99.90%, and the reflective polarizing plate and the liquid crystal cell are integrally laminated, a liquid crystal display device, and a reflective polarizing plate and a manufacturing method thereof.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: January 8, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Katsufumi Ohmuro, Yukito Saitoh, Takashi Yonemoto
  • Patent number: 9219157
    Abstract: A multi-gate structure is used and a width (d1) of a high concentration impurity region sandwiched by two channel forming regions in a channel length direction is set to be shorter than a width (d2) of low concentration impurity regions in the channel length direction. Thus, a resistance of the entire semiconductor layer of a TFT which is in an on state is reduced to increase an on current. In addition, a carrier life time due to photoexcitation produced in the high concentration impurity region can be shortened to reduce light sensitivity.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: December 22, 2015
    Assignee: Semiconductor Energy Laboratory Co., LTD.
    Inventors: Hiroshi Shibata, Shinji Maekawa
  • Patent number: 9070896
    Abstract: An OLED display includes: a substrate; a first signal line provided on the substrate; a second signal line crossing the first signal line; a thin film transistor connected to the first signal line and the second signal line; a pixel electrode connected to a drain electrode of the thin film transistor; an emission layer formed on the pixel electrode; a common electrode formed on the emission layer and formed of a reflective material; and a capacitor overlapping the pixel electrode.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: June 30, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki-Wook Kim, Dae-Hyun Noh
  • Patent number: 9025115
    Abstract: Light emitted by a backlight can be prevented from leaking through a chamfered portion of a front window of a liquid crystal display device. An upper polarizing plate is bonded over the counter substrate, and a front window is bonded over the upper polarizing plate with a UV-curable resin adhesive. The front window is chamfered and a light shielding member is formed on the chamfered portion. The UV adhesive exists between the chamfered portion and the surface of the upper polarizing plate or the counter substrate, and an outer end of the polarizing plate exists at a point outer than an outer end of the front window. Since the light shielding member for the chamfered portion is formed, light from the backlight does not penetrate from the chamfered portion. Thus, light leakage at a periphery of a screen can be prevented even when the view angle is large.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: May 5, 2015
    Assignee: Japan Display Inc.
    Inventors: Takeshi Harayama, Takashi Yoshimoto, Katsuhiko Ishii, Setsuo Kobayashi, Akira Ishii, Shinji Tanabe, Kiyoshi Sento
  • Patent number: 8917362
    Abstract: A touch-sensitive display device has an active display area and a non-active area and includes a touch-sensitive unit, a display unit and a liquid optical adhesive. The touch-sensitive unit has a touch-sensitive region substantially overlapping the active display area, and the display unit is disposed on one side of the touch-sensitive unit. The liquid optical adhesive is disposed between the touch-sensitive unit and the display unit to combine the touch-sensitive unit with the display unit, and an outer edge of the liquid optical adhesive is located in the non-active area of the touch-sensitive display device.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: December 23, 2014
    Assignee: Wintek Corporation
    Inventors: Wen-Chun Wang, Ming-Sin Jian, San-Shien Wu, Ming-Chuan Lin, Chiu Wen Lo, Wen-Hung Wang, Shyh-Jeng Chen, Ping-Wen Chen
  • Patent number: 8913202
    Abstract: It is characterized in that there is provided a liquid crystal panel including a pair of transparent substrates having electrodes for liquid crystal display disposed thereon, respectively, the electrodes for liquid crystal display being made of a transparent conductive film and serving as electrodes for liquid crystal display, and a liquid crystal sandwiched between the pair of transparent substrates; and that one of the pair of transparent substrates has an electrode for a projection capacitive sensor disposed on a side thereof with the electrode for liquid crystal display disposed thereon, the electrode for a projection capacitive sensor being made of the same conductive film as the electrode for liquid crystal display and serving as an electrode for a projection capacitive sensor.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: December 16, 2014
    Assignee: OPTREX Corporation
    Inventors: Masao Ozeki, Tokihito Sawada, Takashi Yuchi, Kiyoshi Watanabe
  • Publication number: 20140354937
    Abstract: Provided is a display unit that includes: a display panel having a pair of substrates that are bonded to each other in a seal region along an outer edge of the display panel; a transparent plate facing the display panel; an optical film provided on a surface of the display panel which faces the transparent plate, and having an outer edge positioned over the seal region; and a resin layer sandwiched between the optical film and the transparent plate.
    Type: Application
    Filed: May 21, 2014
    Publication date: December 4, 2014
    Applicant: Sony Corporation
    Inventors: Shuji Moro, Nobutake Iwase, Hisanori Tsuboi, Kenji Hata, Kazuyuki Uchihira
  • Patent number: 8860898
    Abstract: An array substrate is provided and it comprises a base substrate and data lines and gate lines that crossed with one another to define pixel units on the base substrate. Each pixel unit comprises a pixel electrode and a thin film transistor (TFT) switch, and the TFT switch comprises a gate electrode, a source electrode, a drain electrode and an active layer. A gate insulation layer is provided between the gate electrode and the active layer, and the gate insulation layer comprises a nontransparent insulation layer.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: October 14, 2014
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventor: Zhenyu Xie
  • Patent number: 8786818
    Abstract: Disclosed is a liquid crystal display panel that can minimize the occurrence of short circuits (leaks) between the pair of substrates even if a certain amount of pressing force is applied to the substrates. A liquid crystal display panel of the present invention is provided with a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, such that one of the pair of substrates is provided with a support substrate, a laminated spacer formed by laminating three or more resin layers including transparent colored layers, and an electrode that covers the laminated spacer; the other of the pair of substrates is provided with a support substrate and electrodes; and the degree of deformation of the topmost resin layer of the three or more resin layers is at most 5% of the degree of deformation of the entire laminated spacer, when a certain amount of pressing force is applied to the support substrate supporting the laminated spacer.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: July 22, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yusuke Waratani, Takaya Uno, Yoshitaka Okumoto
  • Patent number: 8767133
    Abstract: Herein are disclosed methods by which a layer of oriented chromonic material may be transferred from a flexible substrate to a receiving substrate, so as to form a subassembly for use in the assembly of liquid crystal cells. The oriented chromonic material layer may function as an alignment layer for aligning liquid crystal material, and may also incorporate a pleochroic dye so to function as a polarizing layer. An oriented chromonic material layer of relatively large area can be transferred, which enables the production of relatively large liquid crystal cells for use in, e.g., autodarkening filters such as used for eye protection in welding operations. Curved liquid crystal cells are also disclosed.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: July 1, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Hassan Sahouani, Feng Bai
  • Patent number: 8687151
    Abstract: A polarization element includes: a substrate; a plurality of protruding sections formed on the substrate in a striped manner in a plan view; and a heat radiation section formed on a top portion of each of the protruding sections, wherein the heat radiation section has a concavo-convex section.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: April 1, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Yoshitomo Kumai
  • Publication number: 20140063422
    Abstract: Methods and devices to compensate for image color variance due to display temperatures are provided. In one example, a display of an electronic device may include a first pixel section that has multiple pixels. The pixels may include a red subpixel, green subpixel, and blue subpixel that each has a respective aperture ratio. The display may also include a second pixel section that has multiple pixels. Again, the pixels may include a red subpixel, green subpixel, and blue subpixel that each has a respective aperture ratio. One or more of the subpixel aperture ratios of the first pixel section may be greater than a respective one or more of the subpixel aperture ratios of the second section to overcome image color variance that may exist due to temperature variations of the display.
    Type: Application
    Filed: September 4, 2012
    Publication date: March 6, 2014
    Applicant: APPLE INC.
    Inventor: Chia-Ching Chu
  • Patent number: 8599342
    Abstract: A liquid crystal display panel including liquid crystal sandwiched between a pair of substrates is prepared. A light-transmitting reinforcing plate is prepared. A photocuring resin is provided between the liquid crystal display panel and the reinforcing plate. Light is irradiated to a side surface of a laminated body constituted of the liquid crystal display panel, the reinforcing plate and the photocuring resin. The photocuring resin is arranged to face the liquid crystal in an opposed manner. The light is allowed to advance to the inside of the photocuring resin from an edge portion of the photocuring resin. The light is allowed to advance to the inside of the reinforcing plate from an edge portion of the reinforcing plate, is propagated in the inside of the reinforcing plate, and is irradiated to the photocuring resin from the reinforcing plate at a position away from the edge portion of the reinforcing plate.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: December 3, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Setsuo Kobayashi, Akira Ishii, Masanori Katsuyama, Shinji Tanabe, Kiyoshi Sento, Takeharu Furusawa
  • Patent number: 8427725
    Abstract: The present invention relates to a light modulating device, comprising a SLM and a pixelated optical element, in which a group of at least two adjacent pixels of the SLM in combination with a corresponding group of pixels in the pixelated optical element form a macropixel, the pixelated optical element being of a type such that its pixels comprise a fixed content, each macropixel being used to represent a numerical value which is manifested physically by the states of the pixels of the SLM and the content of the pixels of the pixelated optical element which form the macropixel.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: April 23, 2013
    Assignee: Seereal Technologies S.A.
    Inventors: Gerald Futterer, Bo Kroll, Steffen Buschbeck
  • Patent number: 8368866
    Abstract: A liquid crystal display device includes first and second substrates, liquid crystal molecules positioned between the first and second substrates, a heat generating electrode for generating heat in response to a direct current being supplied to the heating electrode, and a backlight unit for irradiating light onto the first and second substrates.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: February 5, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Sun-Hwa Lee, Kyo-Seop Choo
  • Patent number: 8319915
    Abstract: The present invention relates to a liquid crystal on silicon imager. The imager includes a backplane substrate, a reflective polarization electrode array, a planar liquid crystal cell, a transparent conductive film and a transparent plate. The reflective polarization electrode array is placed onto the backplane substrate, consists of a plurality of reflective polarization electrodes, and a pattern of each of the reflective polarization electrodes is configured in a planar arrangement having regularly spaced and electrically isolated gaps in parallel to each other. The planar liquid crystal cell is placed above the reflective polarization electrode array. The transparent conductive film is placed above the planar liquid crystal cell. The transparent plate is placed on the transparent conductive film and facing incident light.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: November 27, 2012
    Assignee: Shanghai Lexvu Opto Microelectronics Technology Co., Ltd.
    Inventor: Herb He Huang
  • Patent number: 8314898
    Abstract: A display device includes a first substrate, a heating layer formed on the first substrate, an insulating layer having a first opening formed on the heating layer, at least one switching device, two contact pads formed on the insulating layer, and respectively electrically connected to the scan line and the data line, a capacitor, a passivation layer covering the switching device and the capacitor, and a pixel electrode formed on the passivation layer and electrically connected to the drain of the switching device. The source of the switching device is connected to the data line. The passivation layer has a plurality of second openings exposing the contact pads.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: November 20, 2012
    Assignee: AU Optronics Corp.
    Inventors: Mao-Yi Chang, Chia-Tien Peng, Chih-Wei Chao, Chien-Sen Weng, Chao-Shun Liao
  • Patent number: 8228467
    Abstract: A reflective color filter liquid crystal display, in the reverse order of receiving incident light, includes a backplane substrate, a reflective electrode layer, a planar liquid crystal cell, a transparent protective dielectric layer and a transparent plate. The transparent plate is adapted for receiving and transmitting the incident light. The planar liquid crystal cell is sandwiched between the reflective electrode layer and the transparent conductive film. The reflective electrode layer further includes a first band reflective electrode, a second band reflective electrode and a third band reflective electrode in a regularly tiled planar arrangement.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: July 24, 2012
    Assignee: Shanghai Lexvu Opto Microelectronics Technology Co., Ltd.
    Inventor: Herb He Huang
  • Patent number: 8212975
    Abstract: A liquid crystal display device according to the invention includes a first substrate, on a surface of which are formed: a first color film which has a color other than black, and one portion of which configures a first pixel; a second color film, one portion of which configures a second pixel adjacent to the first pixel; a third color film, at least one portion of which configures a third pixel; and a fourth color film, a second substrate, and a liquid crystal layer sandwiched between the first substrate and second substrate, wherein the first color film and second color film have a first overlapping portion in which they overlap each other in the boundary between the first pixel and second pixel, and the fourth color film, being formed on the first overlapping portion, configures a post spacer which defines the space between the first substrate and second substrate.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: July 3, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Jun Fujiyoshi, Yasukazu Kimura, Daisuke Sonoda
  • Patent number: 8194205
    Abstract: An electro-optical device includes a transparent substrate, a PIN type diode formed in the transparent substrate and receiving light introduced through a light receiving side surface of the transparent substrate, and a reflecting portion provided on a surface side opposite to the light receiving side surface of the transparent substrate and for reflecting light passed through the transparent substrate to the PIN type diode.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: June 5, 2012
    Assignee: Sony Corporation
    Inventors: Shin Koide, Hiroko Muramatsu, Shin Fujita
  • Patent number: 8149356
    Abstract: A liquid crystal display device according to the present invention includes a liquid crystal panel which has a liquid crystal cell including a predetermined liquid crystal layer and polarizing plates for holding the liquid crystal cell, a backlight source which is arranged on the rear side of the liquid crystal panel, for irradiating the liquid crystal panel with white light, and an absorbing layer which is arranged between the backlight source and the liquid crystal cell, for absorbing only the light of the wavelength band corresponding to a changed color of the white light while passing through the liquid crystal panel in the oblique direction with respect to the normal direction of the liquid crystal panel.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: April 3, 2012
    Assignee: Sony Corporation
    Inventors: Toyokazu Ogasawara, Tsuyoshi Maeda
  • Patent number: 8120739
    Abstract: A liquid crystal display (LCD) device includes first and second substrates, a liquid crystal (LC) layer sandwiched between the first substrate and the second substrate, the first substrate defining an array of pixel areas, each of the pixel areas including a pixel electrode and a common electrode, and an insulator film formed on the first substrate and on the pixel electrode, the insulator film including a contact hole and the pixel electrode being exposed through the contact hole such that a voltage supplied to the pixel electrode generates a radial electric field around the contact hole and between the pixel electrode and the common electrode.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: February 21, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Chikaaki Mizoguchi
  • Patent number: 8059254
    Abstract: A transmissive beam steering aperture includes a common superstrate provided from an optical material and having first and second opposing surfaces with at least one of the first and second surfaces having an electrode coating provided thereon to provide the at least one surface as a common electrode surface and having a first plurality of electrically isolated common electrodes. One or more electrode containing substrates is disposed over respective ones of the first plurality of electrically isolated common electrodes to form one or more one liquid crystal (LC) cells. In one embodiment, the transmissive beam steering aperture is used as an aperture in an optical phased array.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: November 15, 2011
    Assignee: Raytheon Company
    Inventors: Robert D. O'Shea, Michael R. Benoit
  • Patent number: 8054442
    Abstract: A low color shift polarizer assembly is provided, comprising a cholesteric liquid crystal film with a plurality of very tiny grooves which are irregularly dispersed on a surface of the cholesteric liquid crystal film. The selective reflective wavelength range of the cholesteric liquid crystal film has a long wavelength boundary ?700 nm and a short wavelength boundary ?420 nm. A quarter wavelength retardation plate can be disposed on the cholesteric liquid crystal film to build up the final low color shift polarizer assembly. The polarizer assembly can be combined with a backlight unit and further with a liquid crystal display to provide low color shift at large viewing angles and high brightness.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: November 8, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Hui-Lung Kuo, Mei-Chih Peng, Pin-Chen Chen, Ying-Jui Lin
  • Patent number: 8018540
    Abstract: The present invention relates to a liquid crystal display and a manufacturing method thereof. The liquid crystal display includes a first substrate, a plurality of gate lines and data lines disposed on the first substrate and crossing each other to define a plurality of pixels, a plurality of thin film transistors connected to the gate lines and the data lines, a plurality of color filters disposed on the thin film transistors, a partition to divide the color filters, a plurality of pixel electrodes connected to the thin film transistors, a second substrate facing the first substrate, a common electrode disposed on the second substrate, the common electrode forming a liquid crystal capacitor and a storage capacitor along with the pixel electrode, and a liquid crystal layer disposed between the first substrate and the second substrate.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: September 13, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung-Ju Shin, Chong-Chul Chai, Se-Young Song
  • Patent number: 7999897
    Abstract: An electro-optic device includes first electrodes that apply voltage to the liquid crystal layer in the pixel area and second electrodes that apply voltage to the liquid crystal layer in the peripheral area for shielding the peripheral area from light.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: August 16, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Shin Oyamada
  • Patent number: 7999895
    Abstract: A contrast compensator for improving the panel contrast of liquid crystal (LC) microdisplays having a high-order waveplate configured as an O-plate and supporting a thin film transistor layer is provided. The contrast compensator includes a counter high-order waveplate configured as an O-plate, which has a birefringence opposite in sign to a birefringence of the thin film transistor substrate.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: August 16, 2011
    Assignee: JDS Uniphase Corporation
    Inventors: Kim Leong Tan, Nada A. O'Brien
  • Patent number: 7978289
    Abstract: A flexible display device may include a first panel including a multifunction film, a second panel arranged facing the first panel with a gap therebetween, the second panel including a substrate and electrodes formed on the substrate, and an electro-optical active layer disposed in the gap between the first panel and the second panel. The multifunction film may perform at least two of the following functions: aligning molecules in the electro-optical active layer, protecting the electro-optical active layer, keeping the thickness of the electro-optical active layer uniform, and serving as a flexible substrate.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: July 12, 2011
    Assignees: Samsung Mobile Display Co., Ltd., Seoul National University Industry Foundation
    Inventors: Sin-Doo Lee, Yeun-Tae Kim
  • Patent number: 7940348
    Abstract: An electrically conductive film is placed between a contact finger and an electrically conductive polarizing plate which hold a display panel therebetween, and static electricity accumulated in the display panel is released to a front frame through the electrically conductive film and the finger. This structure makes it possible to prevent deterioration in the display quality of a display device due to static electricity.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: May 10, 2011
    Assignee: Nec Corporation
    Inventors: Hideki Nishimura, Hiroshi Suzuki
  • Patent number: 7826028
    Abstract: In order to prevent irreversible deformation of column-shaped spacers which retain the gap between a pair of substrates between which the liquid crystal layer of a liquid crystal display device is interposed, spacers which assist in preventing such irreversible deformation are newly provided. According to the invention, two or more kinds of spacers which differ in height from a reference surface are disposed on one of the pair of substrates. In addition, a step pattern with which the spacers are to come into contact is formed in advance on the other of the pair of substrates so that the heights of the spacers can be made different.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: November 2, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Hiromasa Shimizu, Tatsuo Hamamoto
  • Patent number: 7639341
    Abstract: A display device useful to create an interactive image having different sizes by employing one display panel that is allowed to emit the light toward both directions.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: December 29, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong-Un Jin, Chan-Young Park
  • Patent number: 7633566
    Abstract: An input-capable display device includes a first substrate a second substrate, a detection electrode, a dielectric film, and a detector. A pair of electrodes that drive a liquid crystal layer are provided on the first substrate. The second substrate is opposed to the first substrate through the liquid crystal layer. The detection electrode and the dielectric film are laminated on an outer surface of the second substrate. The detector detects a position at which an electrostatic capacitance is formed with the detection electrode through the dielectric film. The second substrate includes a shield conductor that is provided on a side adjacent to the liquid crystal layer. An electric potential of the shield conductor is fixed. The shield conductor has a plurality of birefringent structures that are arranged in a stripe.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: December 15, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Sumio Utsunomiya, Takeshi Koshihara, Takeyoshi Ushiki, Yoichi Fujikawa
  • Patent number: 7619712
    Abstract: A polarizer-alignment dual function film. The film comprising an optically anisotropic material layer having a plurality of strips integrally formed thereon. The strips provide an alignment function for aligning the liquid crystal molecules while the optically anisotropic material provides a polarization function such that the two functions can be integrated into a single-layered film.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: November 17, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Yi-Ying Lai, Hui-Lung Kuo, Sheng-Wen Lin, Pin-Chen Chen, Mei-Chih Peng, Yi-Ping Hsieh
  • Patent number: 7557875
    Abstract: The present invention relates to a display comprising at least one substrate, at least one electrically conductive layer and at least one electronically modulated imaging layer, wherein the electronically modulated imaging layer comprises a self-assembled, close-packed, ordered monolayer of domains of electrically modulated material in a random coil fixed polymer matrix and filler.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: July 7, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Debasis Majumdar, Joseph S. Sedita, Krishnan Chari
  • Publication number: 20080158499
    Abstract: A polarizer-alignment dual function film. The film comprising an optically anisotropic material layer having a plurality of strips integrally formed thereon. The strips provide an alignment function for aligning the liquid crystal molecules while the optically anisotropic material provides a polarization function such that the two functions can be integrated into a single-layered film.
    Type: Application
    Filed: September 21, 2007
    Publication date: July 3, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yi-Ying Lai, Hui-Lung Kuo, Sheng-Wen Lin, Pin-Chen Chen, Mei-Chih Peng, Yi-Ping Hsieh
  • Publication number: 20070296909
    Abstract: A display device includes a prism layer including a plurality of prisms on a surface thereof, a support layer facing with the prisms on the prism layer: a medium layer placed between the prism layer and the support layer, and including a first medium having a first refractive index and a second medium having a second refractive index, the first and second media being freely movable in the medium layer, and electrodes supplying a potential difference between the prism layer and the support layer.
    Type: Application
    Filed: February 8, 2007
    Publication date: December 27, 2007
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hitoshi Nagato, Rei Hasegawa, Yasushi Shinjo
  • Patent number: 7136138
    Abstract: A timepiece provided with a liquid crystal display panel (9) for displaying thereon at least one of time information (5) and calendar information (4), wherein a solar battery unit (12) is provided to face at least a part of a visual recognition side surface of the liquid crystal display panel (9) or an opposite-side (lower-side) surface thereof, the light being applied to a power generation portion of the solar battery unit (12) through a transmission portion of the liquid crystal display panel (9) to generate electric power or what is displayed on the liquid crystal display panel (9) being visually recognized through a transmission portion of the solar battery unit (12), a timepiece circuit and the liquid crystal display panel (9) being driven by utilizing the electric power generated by the solar battery unit (12).
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: November 14, 2006
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Kanetaka Sekiguchi, Katsumi Aota, Kozo Miyoshi, Yuichi Akiba
  • Patent number: 7132138
    Abstract: The LC information display contains a layer of liquid crystal situated between the front and the rear panels with functional layers, and the liquid crystal has parameters providing interference maximum or minimum of transmission or reflection at the exit of the display and/or at the boundary of at least two functional layers and/or between the LC layer and a functional layer, for at least one linearly polarized component of light, and for at least one wavelength. The disclosed invention allows optimizing transmission of light through optically anisotropic functional layers of the display, which leads to substantial increase of its effectiveness.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: November 7, 2006
    Assignee: Nitto Denko Corporation
    Inventor: Pavel I. Lazarev
  • Patent number: 7133108
    Abstract: In order to prevent irreversible deformation of column-shaped spacers which retain the gap between a pair of substrates between which the liquid crystal layer of a liquid crystal display device is interposed, spacers which assist in preventing such irreversible deformation are newly provided. According to the invention, two or more kinds of spacers which differ in height from a reference surface are disposed on one of the pair of substrates. In addition, a step pattern with which the spacers are to come into contact is formed in advance on the other of the pair of substrates so that the heights of the spacers can be made different.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: November 7, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Hiromasa Shimizu, Tatsuo Hamamoto
  • Patent number: 7081941
    Abstract: There is provided a liquid-crystal display device has at least a liquid-crystal panel which is constituted by a back side substrate having a colored resin substrate with an electrode, a visual side transparent substrate having a transparent electrode, and a reflection type liquid-crystal layer interposed between the visual side substrate and the back side substrate. There is provided a colored resin substrate formed of at least a mixture of a transparent resin and a pigment.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: July 25, 2006
    Assignee: Nitto Denko Corporation
    Inventors: Seiji Umemoto, Kiichi Shimodaira
  • Patent number: 7075610
    Abstract: An LCD device for displaying an image includes pixel control electrodes constructed as a transparent metal stack having a photonic band gap (PBG) structure that transmits a visible range of wavelengths and suppresses a non-visible range of wavelengths. A liquid crystal layer between the pixel control electrodes controls the transmission of light in response to a voltage applied across the pixel control electrodes. A light emitting structure (LES), such as a light emitting diode (LED) or light emitting polymer (LEP) device includes a cathode electrode, a substrate, an active layer for emitting visible light, and a transparent anode electrode having a PBG structure.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: July 11, 2006
    Inventors: Michael Scalora, Mark Bloemer
  • Patent number: 6847426
    Abstract: The liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer interposed between the first and second substrates, and a plurality of picture-element regions for providing display. Each of the plurality of picture-element regions has a transmission region for providing display in a transmission mode by using light incident through the first substrate, and a reflection region for providing display in a reflection mode by using light incident through the second substrate. The second substrate has a color filter layer provided in the transmission region and the reflection region. The thickness of the color filter layer in at least a part of the reflection region is smaller than the thickness of the color filter layer in the transmission region.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: January 25, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohichi Fujimori, Yozo Narutaki
  • Patent number: 6798466
    Abstract: A liquid crystal device (and method for forming the LCD) includes a first transparent substrate having a first surface and a second surface, and a second transparent substrate having a first surface and a second surface. The first transparent substrate and the second transparent substrate are arranged such that the first surface of the first transparent substrate faces the first surface of the second transparent substrate, and a liquid crystal material is enclosed between the first surface of the first transparent substrate and the first surface of the second transparent substrate. A pixel array, in which a plurality of pixel regions are arranged in row and column directions and data signals are applied to the pixel regions through data lines, is formed on the first surface of the first transparent substrate and the first surface of the second transparent substrate.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: September 28, 2004
    Assignee: International Business Machines Corporation
    Inventors: Masatomo Takeichi, Hiroaki Kitahara
  • Patent number: 6721019
    Abstract: There is provided a highly reliable screen input type display device using a touch panel which can facilitate the control of a gap formed between upper and lower substrates and can stabilize the linearity of the resistance value detection of a resistance film, whereby an erroneous detection of coordinated can be eliminated. For this purpose, a tape-like conductive pressure sensitive adhesive member, which is formed by sandwiching a metal foil with conductive pressure sensitive adhesive material, is used at a connection portion between an upper wiring electrode mounted on an upper resistance film formed on an upper substrate and an inter-substrate connection wiring electrode formed on a lower substrate.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: April 13, 2004
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd., Hitachi Chiba Electronics, Ltd.
    Inventors: Masao Kono, Akira Kakinuma, Koji Ishii, Haruhisa Otsuka, Kazuo Ishii
  • Patent number: 6707511
    Abstract: Disclosed are a reflective and transflective liquid crystal display device and its manufacturing method, which can raise light efficiency by removing a depressed part in a reflective device without forming a capacitor contact hole in a storage capacitor.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: March 16, 2004
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Dong Guk Kim, Woong Kwon Kim, Kyoung Su Ha, Heume Il Baek, Yong Beom Kim
  • Patent number: 6600470
    Abstract: The invention relates to driving a transflective liquid-cystal panel in such a manner as to increase a contrast ratio during a transmissive-type display time while appropriately maintaining the brightness during a reflective-type display. The liquidcrystal panel includes a Y driver circuit and an X driver circuit for supplying an applied voltage having an effective value of a magnitude corresponding to the gray scale level indicated by gray scale data to a liquid crystal element, and a driver control circuit for switching the setting of each magnitude of an effective value of an applied voltage with respect to each gray scale level in the X driver circuit to a setting for a reflective-type display in response to the non-switching on of a light source and to a setting for a transmissive-type display in response to the switching on of the light source.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: July 29, 2003
    Assignee: Seiko Epson Corporation
    Inventor: Atsunari Tsuda
  • Patent number: RE39082
    Abstract: A liquid crystal display device is constructed such that a liquid crystal layer is sandwiched between an upper substrate, which is provided with upper transparent electrodes for forming pixels, and a lower substrate, which is provided with lower transparent electrodes disposed so as to intersect with the upper transparent electrodes. The liquid crystal panel includes a half reflection layer having a reflection function and a transmission function which is formed on the inner surface of the lower substrate as a lower layer of the lower transparent electrodes; an upper retardation film, an upper polarizing plate, and a light diffusing plate which are laminated on the upper substrate; and a lower retardation film and a lower polarizing plate, which are laminated on the surface of the lower substrate. Due to such a construction, the half reflection type liquid crystal display device is capable of providing an image display of high brightness and high contrast.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: May 2, 2006
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Kiichirou Kubo, Yoshikuni Nagashima, Masaru Suzuki, Terunori Saitou
  • Patent number: RE41678
    Abstract: A liquid crystal display device is constructed such that a liquid crystal layer is sandwiched between an upper substrate, which is provided with upper transparent electrodes for forming pixels, and a lower substrate, which is provided with lower transparent electrodes disposed so as to intersect with the upper transparent electrodes. The liquid crystal panel includes a half reflection layer having a reflection function and a transmission function which is formed on the inner surface of the lower substrate as a lower layer of the lower transparent electrodes; an upper retardation film, an upper polarizing plate, and a light diffusing plate which are laminated on the upper substrate; and a lower retardation film and a lower polarizing plate, which are laminated on the surface of the lower substrate. Due to such a construction, the half reflection type liquid crystal display device is capable of providing an image display of high brightness and high contrast.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: September 14, 2010
    Assignees: Hitachi, Ltd., Hitachi Displays, Ltd.
    Inventors: Kiichirou Kubo, Yoshikuni Nagashima, Masaru Suzuki, Terunori Saitou