Patents Assigned to Display Technologies
  • DEVICE FOR DISPLAYING INFORMATION
    Publication number: 20110290358
    Abstract: A device for displaying information comprising at least one display element which includes: a liquid, the surface energy thereof being variable by means of an electric field; a first and a second volume for receiving the liquid, wherein said first and said second volume are defined by a first effective radius or a second effective radius, respectively, a fluidic passage between said first and said second volume, wherein in a first state said liquid substantially occupies said first volume and wherein in a second state said liquid substantially occupies said second volume, is characterized in that said passage is configured such that the fraction of the liquid facing to the unoccupied volume comprises a radius which is smaller than the effective radius of the presently occupied volume.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 1, 2011
    Applicant: ADVANCED DISPLAY TECHNOLOGY AG
    Inventors: Andriy Bitman, Oliver Mueller-Marc, Dieter Jerosch
  • Display Drivers
    Publication number: 20110291572
    Abstract: An active matrix display comprises a display area of the matrix comprising drive circuitry including a control circuit comprising chiplets outside the display area. The output of the control circuit is distributed among the plurality of chiplets. This arrangement is advantageous in that the chiplets allow for a much smaller fan-in and fan-out structure, thus allowing a much larger percentage of the substrate to be devoted to display area.
    Type: Application
    Filed: October 21, 2009
    Publication date: December 1, 2011
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Jeremy Burroughes, Stephen Coats, Haydn Gregory, Euan Smith, Julian Carter
  • Optical Sensor Array
    Publication number: 20110291992
    Abstract: An optical sensor array comprises a photo-sensitive area formed by an array of chiplets having individual light-sensitive elements, each element configured to produce a signal or signals in response to incident light. The displacement of a chiplet from a predetermined position is derivable from the output signal or signals of the element or elements associated with the chiplet. The arrangement provides a method of measuring the displacement of at least one chiplet in an active display.
    Type: Application
    Filed: October 21, 2009
    Publication date: December 1, 2011
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Jeremy Burroughes, Stephen Coats, Haydn Gregory, Euan Smith, Julian Carter
  • Liquid crystal display device
    Patent number: 8068075
    Abstract: The liquid crystal display device of the invention includes a liquid crystal display element section that is initialized such that the alignment state of liquid crystal molecules is transitioned from a splay alignment to a bend alignment capable of displaying an image, and a driving circuit that applies to the liquid crystal display element section a transition voltage that causes the alignment state of liquid crystal molecules to be transitioned from the splay alignment to the bend alignment in the initialization. Further, a clock signal generator generates upon supply of power to the driving circuit, a clock signal, which is delivered to the driving circuit, as a reference for starting application of the transition voltage and for measuring a transition voltage application period.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: November 29, 2011
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Kenji Nakao
  • Electric devices and methods of manufaturing the same
    Patent number: 8067265
    Abstract: A process for manufacturing an electrical device, the process comprising the steps: providing a substrate; bringing a stamp into contact with the substrate whereby areas of the substrate contacted by the stamp have decreased wettability; and depositing a liquid comprising an electrically active material over areas of the substrate located between the areas of decreased wettability.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: November 29, 2011
    Assignees: Cambridge Display Technology Limited, Cambridge Enterprises Ltd.
    Inventors: Zi-Jian Zheng, Wilhelm Huck, Richard Friend, Jonathan Halls, Jeremy Burroughes
  • Phosphorescent OLED
    Patent number: 8063554
    Abstract: An organic light emitting device having a phase-separated light-emissive layer comprising: a charge transport phase comprising a charge transport material; and an emitting phase, the emitting phase comprising a plurality of discrete emissive domains dispersed in the charge transport phase, each emitting domain comprising a host material and one or more metal complexes for emitting light by phosphorescence; wherein the charge transport material has a T1 energy level lower than the T1 energy level of the metal complexes and the host material has a T1 energy level higher than the T1 energy level of the metal complexes.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: November 22, 2011
    Assignees: CDT Oxford Limited, Cambridge Display Technology Limited
    Inventors: Andrew Bruce Holmes, Carl Towns, Stephen O'Connor
  • Display device capable of measuring an illuminance and widening a dynamic range of the measured illuminance
    Patent number: 8063866
    Abstract: A capacitor charged beforehand is discharged according to a light surrounding a display unit. A data is decreased similarly to the voltage between the electrodes of the capacitor. A trigger signal is outputted if the data becomes equal to or less than a threshold value. A clock signal whose cycle of changing levels gradually becomes long is generated. A count value is updated at each change of the clock signal's level and the updated count value is outputted. The count value is sampled when the trigger signal is outputted.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: November 22, 2011
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Hirotaka Hayashi, Takashi Nakamura, Masayoshi Fuchi, Masahiro Tada, Hiroki Nakamura
  • Liquid crystal display device and method of manufacturing the same
    Patent number: 8064022
    Abstract: A liquid crystal display device includes a liquid crystal display panel which is configured to hold a liquid crystal layer between an array substrate and a counter-substrate. The array substrate includes a pixel electrode which is connected to a switching element, and a counter-electrode which is opposed to the pixel electrode via an interlayer insulation film. The pixel electrode includes a plurality of slits. The slit is formed in a substantially parallelogrammatic shape, and includes, at a corner portion with an acute interior angle, an arcuate recess portion which is recessed toward an outside of an edge.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: November 22, 2011
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Yohei Kimura, Toshiyuki Higano
  • Liquid crystal display device
    Patent number: 8063862
    Abstract: A liquid crystal display device includes a display section which enables color display in each of pixels, and a gradation control unit which controls a gradation level in each of the pixels. The display section includes a first white display structure which is configured to combine primary colors and to display white, and a second white display structure which is configured to include a color with a chromaticity different from a chromaticity of the primary color of the first white display structure and to display white. The gradation control unit has a first control mode in which the gradation level of each pixel is controlled by one of the first white display structure and the second white display structure, and a second control mode in which the gradation level of each pixel is controlled by a combination of the first white display structure and the second white display structure.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: November 22, 2011
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Yuuzo Hisatake
  • Drive method of EL display panel
    Patent number: 8063855
    Abstract: A switching transistor is controlled to turn on or off depending on a turn-on voltage or a turn-off voltage applied to a gate signal line. A driver transistor is supplied with an image signal applied to a source signal line through a switching transistor. A voltage based on the supplied image signal is retained by a capacitor. The driver transistor supplies a light-emitting current to an EL element based on the voltage retained in the capacitor. A capacitor is formed between one terminal of the capacitor (that is, a gate terminal of the driver transistor) and a gate signal line. The capacitor causes the gate terminal voltage of the driver transistor to be varied depending on variation of the potential on the gate signal line.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: November 22, 2011
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Hiroshi Takahara, Hitoshi Tsuge
  • Liquid crystal display device
    Patent number: 8054427
    Abstract: A liquid crystal display device, which is configured to have a liquid crystal layer held between a pair of substrates, includes a display area including a red color pixel, a green color pixel and a blue color pixel, a pixel electrode which is disposed in each of the color pixels, a counter-electrode which is opposed to the pixel electrode via an interlayer insulation film, and an alignment film which is disposed in contact with the liquid crystal layer and is subjected to such rubbing treatment as to restrict alignment of liquid crystal molecules included in the liquid crystal layer. The pixel electrode has a slit which is formed to be inclined with respect to a direction of rubbing of the alignment film, and the slit of the red pixel and the slit of the blue pixel are formed to be inclined in different directions.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: November 8, 2011
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Toshiyuki Higano
  • Compositions and Methods for Manufacturing Light-emissive Devices
    Publication number: 20110269255
    Abstract: A composition adapted for use in the manufacture of an organic light-emissive device by passing the composition through one or more openings under pressure to deposit the composition, the composition comprising: a semi-conductive organic host material; a luminescent metal complex; and a first solvent, wherein the first solvent has a structure: where X, X? independently comprise O, S or N and R, R? independently comprise an aromatic or aliphatic group.
    Type: Application
    Filed: July 20, 2009
    Publication date: November 3, 2011
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Simon Goddard, Paul Wallace
  • Light emissive device having electrode comprising a metal and a material which is codepositable with the metal
    Patent number: 8049408
    Abstract: An organic light emissive device comprising: a first electrode; a second electrode; and an organic light emissive region between the first and second electrodes comprising an organic light emissive material which has a peak emission wavelength, wherein at least one of the electrodes is transparent and comprises a composite of a charge injecting metal and another material which is codepositable with the charge injecting metal, the other material having a different refractive index to that of the charge injecting metal and wherein the other material has a lower degree of quenching at the peak emission wavelength than the charge injecting metal whereby quenching of excitons by the at least one electrode is reduced, the charge injecting metal comprising either a low work function metal having a work function of no more than 3.5 eV or a high work function metal having a work function of no less than 4.5 eV.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: November 1, 2011
    Assignee: Cambridge Display Technology Limited
    Inventors: Euan C. Smith, Matthew Roberts, William Young, Clare Louise Foden
  • Electroluminescent devices with electrode protection
    Patent number: 8039041
    Abstract: A method of manufacturing an electroluminescent device which has an anode and a cathode and arranged between the anode and the cathode a light emissive layer, also includes an anode protection layer which protects the anode against the effects of converting a precursor polymer to a semiconductive conjugated polymer which constitutes the light emissive layer. This has been found to increase the brightness and half-life of devices.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: October 18, 2011
    Assignee: Cambridge Display Technology, Ltd.
    Inventors: Karl Pichler, Carl Towns
  • Organic Electroluminescent Device
    Publication number: 20110240966
    Abstract: An organic electroluminescent device comprising: a substrate; a first electrode disposed over the substrate for injecting charge of a first polarity; a second electrode disposed over the first electrode for injecting charge of a second polarity opposite to said first polarity; an organic light emitting layer disposed between the first and the second electrode; an encapsulant can disposed over, and spaced apart from, the second electrode, defining a cavity therebetween; wherein a plurality of spacers are disposed between the encapsulant can and the second electrode forming multiple sealed cavities between the second electrode and the encapsulant can.
    Type: Application
    Filed: August 21, 2009
    Publication date: October 6, 2011
    Applicant: Cambridge Display Technology Limited
    Inventors: Russell Lees, Angela Lees, William Young
  • Organic Electroluminescent Device
    Publication number: 20110241051
    Abstract: An organic electroluminescent device comprising: a substrate; a first electrode disposed over the substrate for injecting charge of a first polarity; a second electrode disposed over the first electrode for injecting charge of a second polarity opposite to said first polarity; an organic light emitting layer disposed between the first and the second electrode, the second electrode being transparent to light emitted by the light emitting layer; and a transparent encapsulant disposed over the second electrode, wherein the transparent encapsulant comprises a microlens array formed by a top surface of the transparent encapsulant and a diffraction grating formed by a bottom surface of the transparent encapsulant.
    Type: Application
    Filed: September 25, 2009
    Publication date: October 6, 2011
    Applicant: Cambridge Display Technology Limited
    Inventors: Julian Carter, Shunpu Li
  • Liquid crystal display device
    Patent number: 8031306
    Abstract: A device includes a first substrate including a pixel electrode and an underlayer electrode a part of which is opposed to the pixel electrode, a second substrate including a counter-electrode which is opposed to the pixel electrode, and a layer which is held between the first and the second substrate, and which is in a first state prior to power-on and transitions to a second state, at a time of a display operation, wherein the pixel electrode includes a first part that passes light and a second part that reflects light, the second part includes a projection which is opposed to the counter-electrode, and a transverse electric field generating section, which is provided near the projection so as to generate a transverse electric field between the underlayer electrode and the second part, is disposed at an end portion of the second part, which is opposed to the underlying electrode.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: October 4, 2011
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Tetsuo Fukami, Mitsutaka Okita, Kenji Nakao
  • Display element
    Patent number: 8030671
    Abstract: A thin film transistor layer including a thin film transistor is formed at a liquid crystal layer side of a color filter layer on an array substrate. Since it becomes possible to form the color filter layer at a position on a relatively flat glass substrate, satisfactory characteristics of the color filter layer can be obtained. The color filter layer is unlikely to have influence on the thin film transistor layer, so that the yield can be improved.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: October 4, 2011
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Azusa Ikeda, Yasushi Kawata
  • Multi-colored display device
    Publication number: 20110235158
    Abstract: The invention relates to a display device having at least one electrically controllable display element comprising a first and at least one further liquid, a plurality of fluidically closed volumes and at least one voltage source which is connected to an electrode array, wherein said volumes include flat visible subvolumes which stacked upon another along their shortest dimension, having associated second subvolumes which pass through those flat visible subvolumes which are underlying that flat visible subvolume which is associated with the respective second subvolume.
    Type: Application
    Filed: March 22, 2011
    Publication date: September 29, 2011
    Applicant: ADVANCED DISPLAY TECHNOLOGY AG
    Inventors: Oliver Mueller-Marc, Dieter Jerosch, Andriy Bitman, Frank Bartels
  • PRODUCT DISPLAY SHELF WITH COMPLIANT MEMBER
    Publication number: 20110233159
    Abstract: A product display shelf comprising a bottom surface, a rear surface and at least one compliant member is disclosed. The bottom surface is configured to support at least one product thereon. The rear surface extends upwardly from the bottom surface. The at least one compliant member is disposed in mechanical cooperation with the rear surface and is configured to substantially prevent the product supported by the bottom surface from movement relative to the bottom surface upon movement of the product display shelf.
    Type: Application
    Filed: June 10, 2011
    Publication date: September 29, 2011
    Applicant: Display Technologies
    Inventor: Raymond Schneider