Patents Assigned to Display Technologies
  • Liquid crystal display device
    Patent number: 7742015
    Abstract: In order to prevent a gradation shift due to variations in the thickness of a film used to form an auxiliary capacitor, a detection capacitor having a layer structure similar to that of the auxiliary capacitor placed for each pixel is provided on an array substrate. Furthermore, the capacitor value of the detection capacitor as a representative of the plurality of auxiliary capacitors is detected, and the potential amplitude ?Vcs of a power supply line connected to the auxiliary capacitor is adjusted based on this detected value.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: June 22, 2010
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Masahiro Tada, Yoshiaki Nakazaki, Akihiko Saitoh, Hiroyuki Kimura, Shinichi Hirota
  • Drive method of el display apparatus
    Patent number: 7742019
    Abstract: A drive method of an EL display apparatus that includes a switching element that turns on and off a current path between a driver transistor and an EL element. The drive method aggregates image data input to the EL display apparatus, and determines a period to turn off the switching element according to an amount of the aggregate data. With the method, suppression of peak current and expansion of contrast and so on is realized.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: June 22, 2010
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Hiroshi Takahara
  • Liquid crystal display device capable of preventing reflectance and white balance value from shifting
    Patent number: 7742135
    Abstract: In the liquid crystal display device, a transparent area is formed in a part of the color filter layer which opposes the reflective electrode. A part of the transparent area opposes a part of the structure formed to make liquid crystal molecules incline. The structure and the transparent area are configured to keep a ratio constant, the ratio being a ratio between a size of the transparent area's part opposing the structure's part and a size of the rest of the transparent area.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: June 22, 2010
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Keiji Tago, Jin Hirosawa
  • Flat-panel display devices including markings and manufacturing method therefor
    Patent number: 7742141
    Abstract: A flat-panel display device comprises: a display panel having a pixel area for matrix imaging; a plurality of driver IC chips mounted in a row on a fringe part of the display panel; extension wirings extended out from wirings within the pixel area and electrically connected to terminals of the driver IC chips; and a marking visible with naked eye, which is disposed between a group of the extension wirings connected to one of the driver IC chips and another group of the extension wirings connected to other one of the driver IC chips, and which indicates boundary between said one group and said another group of the extension wirings.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: June 22, 2010
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Shinichi Kawano
  • PWM driver for a passive matrix display and corresponding method
    Patent number: 7738001
    Abstract: This invention generally relates to apparatus and methods for driving passive, electro-optic displays with greater efficiency. The invention is particularly suitable for driving passive matrix organic light emitting diode displays.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: June 15, 2010
    Assignee: Cambridge Display Technology Limited
    Inventors: Paul R. Routley, Euan C. Smith
  • Display unit and drive system thereof and an information display unit
    Patent number: 7737933
    Abstract: In a display panel, a dummy pulse of a predetermined voltage signal is superimposed on a data signal and the dummy pulse has an amplitude much larger than the amplitude of the data signal, and thus a signal waveform applied to a light modulation layer such as LC layer is changed to a high frequency wave. The applying position of the dummy pulse is varied according to each color of R, G and B, or varied according to frame or field. By performing a MLS drive with the dummy pulse superimposed on the data signal, the amplitude difference between the selection signal and the data signal can be reduced. Thus, a common driver IC and a segment driver IC can be formed as one semiconductor chip to be placed on one side, constructing a three side free type.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: June 15, 2010
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Atsuhiro Yamano, Hiroshi Takahara, Hitoshi Tsuge
  • Display device
    Patent number: 7737962
    Abstract: A display device, comprising: display elements formed in vicinity of intersections of signal lines and scan lines aligned vertically and horizontally; image pickup units provided corresponding to each of the display elements by at least one piece, each converting incident radiation at predetermined range into an electric signal; electric charge accumulators which accumulate the electric charge in accordance with the electric signal converted by the image pickup units; and signal processing unit which generates digital image data corresponding to image picked up by the image pickup unit, based on accumulated electric charge of the electric charge accumulator for each of a plurality of image pickup conditions.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: June 15, 2010
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Takashi Nakamura, Hirotaka Hayashi, Masahiro Yoshida, Tomonobu Motai
  • PRODUCT DISPLAY TRAY
    Publication number: 20100140197
    Abstract: A product display tray configured for use on a shelf is disclosed. The product display tray includes a base and at least one side wall. The base includes a front end, a back end, a left side, a right side, a lower surface and an upper surface for supporting items. The side wall is selectively positionable a distance from a side of the base and is substantially parallel to the side.
    Type: Application
    Filed: February 12, 2010
    Publication date: June 10, 2010
    Applicant: DISPLAY TECHNOLOGIES
    Inventors: Raymond M. SCHNEIDER, Richard JAY, Eleanor LOVINSKY
  • Liquid crystal display device
    Patent number: 7733438
    Abstract: An area light source device, which is disposed between a liquid crystal display panel and a display medium and illuminates the liquid crystal display panel from a back side thereof, includes a light source, a light guide, and a first optical sheet and a second optical sheet which are stacked between the liquid crystal display panel and the light guide and impart predetermined optical characteristics to emission light emerging from the light guide. The first optical sheet is disposed on the liquid crystal display panel side, and the second optical sheet is disposed on the light guide side. The first optical sheet and the second optical sheet have opening parts opposed to the display medium, and the first optical sheet is disposed to cover edges that define the opening part of the second optical sheet.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: June 8, 2010
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Kenji Aoshima, Hiroshi Nagahama
  • Liquid crystal display device and driving method of the same
    Patent number: 7733322
    Abstract: A liquid crystal display device includes a liquid crystal display panel having pixels, a light source which illuminates the display panel, and a control unit which controls the display panel and the light source. The control unit includes an insertion unit which causes the pixel to store a first voltage corresponding to a video signal in a first period within one frame period and to store a second voltage corresponding to a non-video signal in a second period that follows the first period, and a driving unit which enables the light source at least in a period corresponding to the first period in which the first voltage is held in the pixel, and disables the light source in a period corresponding to the second period in which the second voltage is held in the pixel, and is configured to set the first and second voltages at different independent values.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: June 8, 2010
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Shigesumi Araki, Kazuhiro Nishiyama, Mitsutaka Okita, Daiichi Suzuki
  • Display Element Comprising a Reflector
    Publication number: 20100123946
    Abstract: The invention relates to a display element for the display of a plurality of a colors and a method for their display. For this purpose, the invention teaches a display element 1 based on one or more color-producing surfaces 2 which can be oriented parallel to the viewing direction 3 of an observer, for example, so that the observer views only the narrow edges of the surfaces 2. The actual content is perceptible only because a movable reflector 4 is also provided in which the color-producing surface 2 is reflected. The display element claimed by the invention has a particularly good aperture. In the case of static images, the power consumption of the display element is very low. In one preferred embodiment, the display element also makes possible the presentation of a large color space and can be independent of the presence of ambient light.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 20, 2010
    Applicant: ADVANCED DISPLAY TECHNOLOGY AG
    Inventors: Oliver Mueller-Marc, Andriy Bitman
  • Distinct color LCD apparatus
    Patent number: 7719501
    Abstract: A distinct color LCD apparatus including at least two layers of respectively disparate encapsulated liquid crystal materials; Structural means for maintaining said layers proximate to each other and in a substantially parallel orientation; Electrically conductive means for addressing at least one substantially parallel address across the encapsulated liquid crystal material in each of the respective layers; and Coordinated with said means for addressing, an electrical pulse driving means (I) wherein a state is selected from the list Homeouopre and planar and (U) whereby said state is communicated to a predetermined address between one of said parallel layers.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: May 18, 2010
    Assignee: Magink Display Technologies Ltd.
    Inventors: Amir Ben-Shalom, David Coates
  • Anti-theft ring tag
    Patent number: 7714721
    Abstract: An anti-theft tag deterring theft of a ring is provided. The anti-theft tag includes an elongated housing for accommodating an EAS marker, a product support member that locks into the housing and which supports the ring, and a flexible, tear resistant strap for securing the ring to the support member, the strap being disposed at least partially within the housing during use. In one embodiment, the support member includes an arcuate seat portion for supporting a circular shank portion of the ring, and a locking member that locks into a corresponding cavity in the housing. In use, the tear resistant strap extends over the ring shank, and the strap ends are received within the cavity of the housing to protect the strap from unauthorized removal by a consumer.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: May 11, 2010
    Assignee: Display Technologies, Inc.
    Inventors: Jeffrey Feibelman, David Brown
  • Liquid crystal display
    Patent number: 7714819
    Abstract: A liquid-crystal-panel drive and driving method capable of preventing unevenness on a display face from occurring after turning off a power supply in a liquid crystal display apparatus using OCB mode liquid crystal. The liquid crystal display apparatus includes a liquid crystal layer using OCB mode liquid crystal, a driver applying a voltage to the liquid crystal layer, a liquid-crystal driving power supply supplying power to the driver, and a switch outputting an on/off signal to the driver. When the switch outputs an off signal, the driver applies a predetermined voltage that can be applied to each pixel of the liquid crystal layer for a predetermined time, and after the elapse of the predetermined time, stops the supply of power to the driver from the liquid-crystal driving power supply.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: May 11, 2010
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Seiji Kawaguchi, Kenji Nakao
  • USE OF A FLUID MIXTURE FOR ELECTROWETTING A DEVICE
    Publication number: 20100108516
    Abstract: The invention relates to the use of a fluid mixture for electrowetting in a device that is suitable for this. According to the invention, the fluid mixture consists of at least two components, namely an electrically inducible liquid and an electrically inert fluid. These two components form a bi- or multiphasic mixture. The electrically inducible liquid responds to a change of an electric field that surrounds it or completely or partly permeates it, in such way that it changes its surface tension so that its form is changed too, particularly if only parts of its surface are permeated by the electric field, or if the field strength is distributed not homogenously. According to a particularly preferred embodiment, the electrically inducible liquid consists of propylene carbonate.
    Type: Application
    Filed: April 17, 2008
    Publication date: May 6, 2010
    Applicant: Advanced Display Technology AG
    Inventors: Frank Bartels, Dieter Jerosch
  • Cavity Glass for Light-Emissive Devices and a Method of Manufacturing the Same
    Publication number: 20100109033
    Abstract: A method of manufacturing a transparent encapsulating sheet for a light-emissive device, the method comprising the steps: forming a plurality of cavities in one side of a transparent sheet of material for receiving light-emissive structures therein, said forming step producing a frosted surface comprising micro cracks in the cavities; coating said frosted surface with a low viscosity material whereby the micro cracks in the frosted surface are filled with the low viscosity material in order to form the transparent encapsulating sheet.
    Type: Application
    Filed: December 1, 2006
    Publication date: May 6, 2010
    Applicant: CAMBRIDEGE DISPLAY TECHNOLOGY LIMITED
    Inventor: Russell Lees
  • Active Matrix Optical Device
    Publication number: 20100102300
    Abstract: An active matrix organic optical device comprising a plurality of organic thin film transistors and a plurality of pixels disposed on a common substrate, wherein a common bank layer is provided for the organic thin film transistors and the pixels, the common bank layer defining a plurality of wells, wherein some of the wells contain the organic semiconducting material of the organic thin film transistors therein and others of the wells contain organic optically active material of the pixels therein.
    Type: Application
    Filed: April 3, 2008
    Publication date: April 29, 2010
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Jeremy Henley Burroughes, Mark Bale, Mark Garbett, Jonathan J. Halls
  • Liquid crystal display
    Patent number: 7705822
    Abstract: A liquid crystal display 1 displays an image of 16:9 aspect ratio by sequentially driving scan lines Y(1) to Y(30) and capacitor lines CL(1) to CL(30), in synchronization with this, sequentially driving scan lines Y(211) to Y(240) and capacitor lines CL(211) to CL(240), and thereafter, sequentially driving scan lines Y(31) to Y(210) and capacitor lines CL(31) to CL(210).
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: April 27, 2010
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Kenji Harada
  • Product display tray
    Patent number: 7703614
    Abstract: A product display tray configured for use on a shelf is disclosed. The product display tray includes a base and at least one side wall. The base includes a front end, a back end, a left side, a right side, a lower surface and an upper surface for supporting items. The side wall is selectively positionable a distance from a side of the base and is substantially parallel to the side.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: April 27, 2010
    Assignee: Display Technologies
    Inventors: Raymond M. Schneider, Richard Jay, Eleanor Lovinsky
  • Web cam
    Patent number: D614682
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: April 27, 2010
    Assignee: Promotion and Display Technology Ltd.
    Inventor: David Holder