Patents Assigned to Display Technologies
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Patent number: 7443467Abstract: For the purpose of preventing line defects from occurring on a display screen in consequence of uneven coating of pigmented layers, a first pigmented layer is formed in a pattern obtained by thinning out a portion in an otherwise complete grid every other pixel in a direction of signal lines and also every other pixel in a direction of scanning lines.Type: GrantFiled: November 25, 2005Date of Patent: October 28, 2008Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Hideyuki Takahashi, Sakae Yoshida
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Publication number: 20080259987Abstract: A device comprising an organic light emitting diode coupled to a cavity, said cavity containing an emitting species, said device being arranged such that light emitted from said organic light emitting diode is at least partially absorbed by the emitting species and re-emitted from the emitting species. The device may be arranged such that the emitting species acts as the gain media of a laser, and the organic light emitting diode may be arranged to pump the emitting species. Also provided is method of generating light, said method comprising: coupling an organic light emitting diode to a cavity, said cavity containing an emitting species, said organic light emitting diode and said cavity being arranged such that light emitted from said organic light emitting diode is at least partially absorbed by the emitting species; operating said organic light emitting diode to emit light which is at least partially absorbed by the emitting species; and re-emitting light from the emitting species.Type: ApplicationFiled: August 17, 2005Publication date: October 23, 2008Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITEDInventor: Euan C. Smith
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Publication number: 20080258606Abstract: A light-emitting device comprising: an anode; a cathode; and a light emitting region situated between the anode and the cathode, the light emitting region comprising an exciton generating layer and a phosphorescent layer, the exciton generating layer comprising an organic material, wherein the organic material of the exciton generating layer generates singlet and triplet excitons and emits light by fluorescent emission from the singlet excitons and the phosphorescent layer accepts the triplet excitons from the exciton generating layer and emits light by phosphorescent emission from the triplet excitons.Type: ApplicationFiled: October 7, 2005Publication date: October 23, 2008Applicant: Cambridge Display Technology LimitedInventors: Timothy Butler, Nalinkumar Patel, Matthew Roberts, Nicholas Baynes
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Publication number: 20080252804Abstract: In a multi-gap liquid crystal display device, a capacity of a storage capacitor (Cst) in a transmission region is set to be smaller than that of a storage capacitor (Csr) in a reflection region (Cst<Csr). In addition, a change amount (V1t) of a compensation voltage to be applied to storage capacitor lines in the transmission region is set to be smaller than a change amount (V1r) of a compensation voltage to be applied to storage capacitor lines in the reflection region (V1t<V1r).Type: ApplicationFiled: March 25, 2008Publication date: October 16, 2008Applicant: Toshiba Matsushita Display Technology CO., LTD.Inventors: Akihiko SAITOH, Hiroyuki Kimura
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Publication number: 20080252837Abstract: A liquid crystal display device includes an array substrate, terminal electrodes formed on the array substrate, an anisotropic conductive film, a semiconductor device mounted via the anisotropic conductive film on the array substrate and a dummy pattern formed on the array substrate as facing the anisotropic conductive film. A manufacturing method of the liquid crystal display device includes forming the terminal electrodes and dummy pattern on the array substrate, temporarily pressure-bonding the anisotropic conductive film onto the terminal electrodes and dummy pattern and mounting the semiconductor device on the anisotropic conductive film through thermal compression bond.Type: ApplicationFiled: March 20, 2008Publication date: October 16, 2008Applicant: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Atsushi YAMAZAKI
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Publication number: 20080252617Abstract: In making a contact determination between an object and a display screen, a display apparatus of the present invention is capable of adjusting a region on which to make a contact determination in response to the displayed image in a liquid crystal panel, so that the influence by the displayed image can be suppressed. Moreover, for simplifying the contact determination process, the display apparatus sets solid a region in the picked-up image that is not a target of the contact determination, with a predetermined gradation value.Type: ApplicationFiled: October 5, 2007Publication date: October 16, 2008Applicant: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Hiroki Nakamura, Takashi Nakamura, Hirotaka Hayashi, Norio Tada, Takayuki Imai
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Publication number: 20080246703Abstract: A method of driving a passive matrix multicolor electroluminescent display, the display comprising a plurality of pixels arranged in rows and columns, each said pixel comprising at least first and second sub-pixels having different respective first and second colors, the method comprising: driving groups of said pixels in turn to display a multicolor image frame, said driving of a group of pixels comprising driving first and second sub-groups of sub-pixels of respective said first and second colors; and wherein said driving further comprises driving a said group of pixels for a duration dependent upon a maximum drive level of a sub-pixel of a said sub-group.Type: ApplicationFiled: August 9, 2006Publication date: October 9, 2008Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITEDInventor: Euan C. Smith
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Publication number: 20080246740Abstract: Provided are a display device with an optical input function, an image manipulation method, and an image manipulation program. Shape information on an object adjacent to a display unit is detected. A function indicated by an icon which corresponds to contact coordinates of the object is assigned to the shape information. This makes it possible for a user to assign dedicated functions respectively to, for example, a thumb and a little finger. Hence, a user-friendly user interface can be provided.Type: ApplicationFiled: March 4, 2008Publication date: October 9, 2008Applicant: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Takashi Nakamura, Takayuki Imai, Hirotaka Hayashi, Hiroki Nakamura, Masahiro Yoshida
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Publication number: 20080246606Abstract: A consumer electronic device (CED) having a display and including at least one light sensor for recalibrating said display at intervals, wherein said display and said at least one light sensor are mounted within different parts of a unitary housing such that when said CED is not in use said light sensor is able to monitor light from said display. Preferably the different parts of the unitary housing comprise two hinged parts, one mounting the display, the other at least a light sensing portion of the sensor.Type: ApplicationFiled: October 6, 2006Publication date: October 9, 2008Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITEDInventors: Euan Smith, Jeremy Burroughes
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Publication number: 20080246781Abstract: A display system and method created by adjusting the properties of one or more displays to obtain coarse control over display behavior, by using sensors to optimize display parameters and meet a quality target. The display may construct a display map by selectively driving the display and sensing the optical image created. The system reports on its status, and is able to predict when the system will no longer meet a quality target. The system and method may optimize a display system and keep it optimized over time. Operators of the display who require a minimum level of quality for the display system can be ensured that the display meets those requirements. And, they can be warned in advance as to when system maintenance can be necessary, when quality falls below targeted goals system and method provides for sending out methods of the quality of the system.Type: ApplicationFiled: March 14, 2008Publication date: October 9, 2008Applicant: SCALABLE DISPLAY TECHNOLOGIES, INC.Inventors: Rajeev J. Surati, Samson Timoner, Kevin Amaratunga, Thomas F. Knight
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Patent number: 7431624Abstract: A method of manufacturing an organic EL element includes applying a reverse bias to an organic EL element with an inverse layered structure until a current density of the organic EL element at an impressed voltage of 10 V reaches 0.075 mA/cm2 or more.Type: GrantFiled: November 2, 2005Date of Patent: October 7, 2008Assignees: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Norihisa Maeda, Hirofumi Kubota, Hideyuki Murata
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Patent number: 7431625Abstract: A method of manufacturing an organic EL display includes forming organic EL elements on a first portion of a first substrate, forming a frame-shaped sealing resin layer on the first portion such that the sealing resin layer surrounds the organic EL elements, putting the first substrate and a second substrate together such that the sealing resin layer is interposed between the first and second substrates, thereby forming a prebroken panel, and breaking the first substrate of the prebroken panel along a boundary between the first portion and a second portion of the first substrate, wherein, before forming the sealing resin layer, a release layer is formed on the second portion at a position adjacent to the boundary, the release layer including a layer made of a material equal to a material of a layer included in an organic layer of the organic EL element.Type: GrantFiled: December 16, 2005Date of Patent: October 7, 2008Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Norihisa Maeda
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Patent number: 7425801Abstract: Driving voltages of an LED of each color are stored in applied voltage storage register 11, 12 or 13, and the LED of each color is driven with independent driving voltage, whereby current consumption is reduced. Further, data in applied voltage storage registers 11, 12 and 13 is made rewritable via storage value setting bus 14, and when there are fluctuations in minimum emission voltage in actually mounted LEDs due to individual differences, voltages to store in the applied voltage storage registers 11, 12 and 13 can be changed as appropriate corresponding to the fluctuations.Type: GrantFiled: March 26, 2004Date of Patent: September 16, 2008Assignee: Hunet Display Technology Inc.Inventor: Yutaka Ozaki
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Patent number: 7425728Abstract: A surface light source control device has a plane light source control circuit for setting a current amount to a plurality of diode arrays. The light source control circuit comprises a constant current circuit for holding currents respectively flowing in the plurality of diode arrays constant at the same current value; and a power supply voltage control loop for selecting a notable diode array with a minimum reference voltage, among reference voltages appearing at each terminal of the plurality of diode arrays, appeared thereon to select the minimum reference voltage by a voltage selection circuit and adjusting a common power supply voltage so that the reference voltage becomes a prescribed value.Type: GrantFiled: November 21, 2005Date of Patent: September 16, 2008Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Kenshi Tsuchiya
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Publication number: 20080218667Abstract: In the liquid crystal display device, the overcoat layer enters the area where a color filter layer is not formed. The opposing substrate when the overcoat layer is formed is thin. This makes the difference between the cell-gap length in the display area and the cell-gap length in the picture frame area become small.Type: ApplicationFiled: November 12, 2007Publication date: September 11, 2008Applicant: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Keiji TAGO
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Publication number: 20080218668Abstract: 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: ApplicationFiled: December 14, 2007Publication date: September 11, 2008Applicant: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Keiji TAGO, Jin HIROSAWA
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Patent number: 7423622Abstract: A display device, comprising: signal lines and scanning lines arranged vertically and horizontally on an insulating substrate; display elements formed in vicinity of the signal lines and the scanning lines on said insulating substrate; a signal line drive circuit which drives the signal lines; and a scanning line drive circuit which drives the scanning lines, wherein said signal line drive circuit includes: a display data storage implemented on said insulating substrate, which stores ordinary display data supplied from outside; and a signal driver formed of polysilicon process on said insulating substrate, which drives the signal lines based on the ordinary display data stored in said display data storage.Type: GrantFiled: June 18, 2004Date of Patent: September 9, 2008Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Tomonobu Motai
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Patent number: 7423715Abstract: A liquid crystal display device includes a liquid crystal panel having a structure in which a liquid crystal layer LQ is held between a pair of electrode substrates AR, CT, a pair of polarizers PL which hold the liquid crystal panel therebetween, and a pair of optical retardation plates RT arranged between the liquid crystal panel and the pair of polarizers PL. Each optical retardation plate RT has a refractive anisotropy in which average refractive indices nx, ny, and nz in an x-axis direction, a y-axis direction, and a z-axis direction being perpendicular to each other satisfy nx>ny>nz in a state when the z-axis direction conforms to the normal direction. The x-axis direction of each optical retardation plate RT is almost parallel to the transmission axis of the polarizer PL adjacent to a corresponding optical retardation plates RT.Type: GrantFiled: August 18, 2004Date of Patent: September 9, 2008Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Yuzo Hisatake
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Patent number: 7420214Abstract: An array substrate for a display device includes an insulating substrate, a buffer layer which is disposed on the insulating substrate and is formed of silicon oxide with a refractive index equal to a refractive index of the insulating substrate, a first insulation layer which is disposed on the buffer layer and formed of silicon nitride, a second insulation layer which is disposed on the first insulation layer and formed of silicon oxide, a switching element including a semiconductor layer disposed on the second insulation layer, and a pixel electrode connected to the switching element.Type: GrantFiled: March 15, 2007Date of Patent: September 2, 2008Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Noriyuki Adachi
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Patent number: 7417628Abstract: A liquid crystal display apparatus comprises a liquid crystal display panel including a display region, a planar light source device having a light exit surface which faces the liquid crystal display panel and from which planar light exits toward the liquid crystal display panel, and a back surface located opposite to the light exit surface, a coordinates position detecting device which detects coordinates of a position designated on the display region; and a frame which has a projection and supports the liquid crystal display panel and the planar light source, the projection being formed integrally with the frame and extending along the back surface with a distance corresponding to a thickness of the coordinates position detecting device from the planar light source device. The coordinates position detecting device is interposed between the projection and the planar light source device and supported by the projection.Type: GrantFiled: January 10, 2006Date of Patent: August 26, 2008Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Tomohiro Tobari