Testing Or Adjusting Means Patents (Class 445/63)
  • Publication number: 20150104991
    Abstract: The present invention refers to a method for providing a light assembly emitting light with a desired color temperature comprising the steps of providing a light source in a first step measuring the color temperature of the light source in a second step, comparing the measured color temperature with the desired color temperature in a third step and printing an optical compensation means for compensating differences between the measured color temperature and the desired color temperature in a fourth step, if the measured color temperature deviates from the desired color temperature.
    Type: Application
    Filed: June 13, 2013
    Publication date: April 16, 2015
    Inventors: Joris Biskop, Richard Van De Vrie
  • Patent number: 8968045
    Abstract: A cathode selection method includes measuring, by using a cathode having an electron emission surface which is a flat surface and a emission area which is limited, a total emission emitted from the cathode; calculating, using a measured total emission value, work function by a Richardson Dash Man's formula; and determining whether or not the cathode has the work function equal to or under an acceptable value.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: March 3, 2015
    Assignee: NuFlare Technology, Inc.
    Inventor: Kenichi Saito
  • Patent number: 8939808
    Abstract: A spark plug includes a ceramic insulator extending in the direction of an axis (CL1) and a metallic shell provided around the ceramic insulator. Talc is pressed charged between the ceramic insulator and the metallic shell and a crimp portion is formed for fixing the metallic shell and the ceramic insulator while the metallic shell having the ceramic insulator inserted thereinto is supported by a tubular receiving member. The receiving member is made movable in relation to a pressing jig in its radial direction. Thus, at the time of pressing of the talc, etc., the eccentricity between the center axis (CL2), (CL3) of the pressing jig and the axis (CL1) in the radial direction can be reduced, whereby the misalignment between the axis (CL1) and the center axis of the metallic shell or the like assembly error can be suppressed.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: January 27, 2015
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Jiro Kyuno, Keiji Ozeki, Tomoaki Kato, Akiko Maruno
  • Patent number: 8876569
    Abstract: The embodiments of the present invention disclose a vacuum cell-assembling device and a cell-assembling method. The vacuum cell-assembling device comprises: an upper substrate, a signal processing apparatus, and a lower substrate provided opposite to the upper substrate, wherein the upper substrate is provided with a light-emitting apparatus thereon, and the lower substrate is provided a photosensitive receiving element array thereon, and the photosensitive receiving element array is connected with the signal processing apparatus, and the signal processing apparatus is adapted for converting the electrical signals from the photosensitive receiving element array to a liquid crystal diffusion-simulation image.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: November 4, 2014
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Bingyu Chen, Huan Tang, Tingze Dong, Ying Liu
  • Publication number: 20140141687
    Abstract: The provides an illuminance adjusting method of a liquid crystal photo alignment irradiation machine, including (1) providing a liquid crystal photo alignment irradiation machine, which includes UV lamps, an illuminance collecting device, and a stage for supporting a liquid crystal panel; (2) the illuminance collecting device collecting information of illuminance and illuminance homogeneity of a surface of the stage; (3) calculating distance for the UV lamps to descend according to the information of illuminance and illuminance homogeneity of the surface of the stage; and (4) lowering down altitude of the UV lamps according to the descending distance. The method uses the illuminance collecting device to completely and intensively collect the information of illuminance and illuminance homogeneity of the stage surface and to automatically adjust the altitude of the UV lamps according to the information of illuminance and illuminance homogeneity so as to adjust the illuminance of the stage surface.
    Type: Application
    Filed: November 25, 2012
    Publication date: May 22, 2014
    Applicant: Shenzhen China Star Optoelectronics Technology Co., LTD.
    Inventors: Shengpeng Mo, Wenpin Chiang
  • Publication number: 20140127962
    Abstract: The embodiments of the present invention disclose a vacuum cell-assembling device and a cell-assembling method. The vacuum cell-assembling device comprises: an upper substrate, a signal processing apparatus, and a lower substrate provided opposite to the upper substrate, wherein the upper substrate is provided with a light-emitting apparatus thereon, and the lower substrate is provided a photosensitive receiving element array thereon, and the photosensitive receiving element array is connected with the signal processing apparatus, and the signal processing apparatus is adapted for converting the electrical signals from the photosensitive receiving element array to a liquid crystal diffusion-simulation image.
    Type: Application
    Filed: July 20, 2012
    Publication date: May 8, 2014
    Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Bingyu Chen, Huan Tang, Tingze Dong, Ying Liu
  • Publication number: 20130337716
    Abstract: The present invention provides a manufacturing method for liquid crystal display panel, which includes: applying a voltage to form an electrical field between upper and lower substrates of liquid crystal display panel; forming layout and pretilt angle of liquid crystal molecules under the effect of electrical field; releasing the voltage between upper and lower substrates after forming pretilt angle of liquid crystal molecules. The present invention also provides a manufacturing method for liquid crystal display device and a manufacturing equipment for liquid crystal display panel. As such, reduces the dark pattern or fragmented bright spots in liquid crystal display panel and improve the displaying result of the liquid crystal display panel.
    Type: Application
    Filed: June 25, 2012
    Publication date: December 19, 2013
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO. LTD.
    Inventors: Jinjie Wang, Cheng-hung Chen
  • Publication number: 20130316609
    Abstract: In a method of fabricating a lightweight and thin liquid crystal display (LCD), when an auxiliary substrate is used to perform a process of a thin glass substrate, the auxiliary substrate is separated from the thin glass substrate by detaching an edge portion between the thin glass substrate and the auxiliary substrate using a knife and then injecting air into the edge portion using an air knife, so that the auxiliary substrate can be easily separated from a liquid crystal panel in a cell state, which is attached by completing the process. Further, it is possible to optimize the shape of a push pin for forming a point at which the detachment of the edge portion is started.
    Type: Application
    Filed: December 27, 2012
    Publication date: November 28, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventors: KiHyun Kwon, YeongGeun Hwang, JaeYoung Oh, SangYoung Lee, ByeongKeun Kim, JinKyoung Kim, GiSang Hong, EunJin Bae
  • Patent number: 8292686
    Abstract: An apparatus for manufacturing a light source and a method therefor are provided that enables a high efficient light source to be manufactured even when an optical element whose characteristic significantly varies is used. After maintaining temperatures of a laser device and a wavelength conversion element at a temperature where an output of light emitted from each of the device and the element is equal to or greater than a predetermined rate of the maximum output, the laser device and the wavelength conversion element whose temperatures have been maintained are joined together so that the output of the light emitted from the wavelength conversion element is equal to or greater than a predetermined value.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: October 23, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinichi Oe, Kazutaka Ikeda, Akira Nakamura, Motoaki Tamaya
  • Patent number: 8257126
    Abstract: The present invention is intended to evaluate outgoing light from a light emitting device including a structure in which four or more layers of thin films, including a light-emitting layer, are laminated, in a shorter period of computation time, as compared with conventional methods.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: September 4, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Fumihiro Sakano
  • Publication number: 20120086323
    Abstract: A method is described for manufacturing a display. The method includes providing a display layer for displaying an image having at least a luminosity component, providing a color filter layer comprising a color filter for filtering the image according to a predetermined pattern, and removably attaching the color filter layer to the display layer. Dependent on the outcome of a test on the product provided with the removably attached color filter layer it may be decided to remove the color filter layer.
    Type: Application
    Filed: October 7, 2011
    Publication date: April 12, 2012
    Applicant: Polymer Vision B.V.
    Inventors: Michel Josephus Marie Somers, Fredericus Johannes Touwslager, Nicolaas Aldegonda Jan Maria van Aerle
  • Patent number: 7955151
    Abstract: A method of repairing an organic light-emitting display capable of reducing an eliminated area of an electrode or the like, and preventing a decline in display quality is provided. The method of repairing an organic light-emitting display, the organic light-emitting display including an organic light-emitting device, the organic-emitting device including a plurality of pixels, each of the plurality of pixels including a first electrode, an organic layer including a light-emitting layer, and a second electrode on a substrate in order, each of the plurality of pixels emitting light from a light-emitting region where the first electrode and the second electrode overlap each other with the organic layer in between, the method includes a step of: applying a laser beam to the periphery of a light-emitting region of a pixel which is constantly a bright spot.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: June 7, 2011
    Assignee: Sony Corporation
    Inventor: Hiroshi Fujimaki
  • Publication number: 20100279575
    Abstract: A system and method for depositing a phosphor composition onto a light emitting device improves manufacturing yield, simplifies conventional processes, and decreases costs. For example, a method of dispensing a phosphor composition onto a light emitting device includes dispensing a portion of the phosphor composition onto the light emitting device utilizing a plurality of colored phosphor dispensers each for dispensing a respective type of phosphor. Power is applied to the light emitting device to emit light, and a characteristic the light emitted by the light emitting device is detected. Phosphor mixing and phosphor dispensing are dynamically controlled. Therefore the color characteristics of phosphor dispensed on LEDs are consistent. The system and method may also reduce the difference between detected characteristic of the light and a desired characteristic of the light.
    Type: Application
    Filed: December 1, 2009
    Publication date: November 4, 2010
    Applicant: Bridgelux, Inc.
    Inventors: Tao Xu, Rene Helbing
  • Patent number: 7774152
    Abstract: A method of calculating node potentials in a network including current flow nodes on wirings with high precision at high speed is provided. Provided are a drive method of making voltages applied to electron-emitting devices uniform using the calculating method and an apparatus for manufacturing an image display apparatus including the electron-emitting devices. Assume that n nodes are located between one end of a wiring in which a potential DL is set and the other end of the wiring in which a potential DR is set. At a j-th node counted from the one end, when a current value flowing therefrom is Ij, a node potential is Vj, resistance elements between a terminal and a node and between adjacent nodes are R0 to Rn+1, and a resistance between both end of the wiring is Rall, the node potential Vj is calculated by the following expression.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: August 10, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuhiro Hamamoto
  • Publication number: 20100151761
    Abstract: A manufacturing apparatus for a three-dimensional image display includes a control unit configured to cause a display panel bonded to a lens plate while being housed in a decompression chamber to display an inspection chart, to cause an image capture to capture images of the inspection chart multiple times along with an increase in a decompression degree inside the decompression chamber while causing a decompressor to decompress the inside of the decompression chamber, to obtain variance of luminance distribution for each of the images captured by the image capture, to obtain change information of the variance that changes depending on a change in the decompression degree inside the decompression chamber, and to obtain the decompression degree at a change point of the variance based on the obtained change information of the variance.
    Type: Application
    Filed: December 16, 2009
    Publication date: June 17, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kentaro Miyazaki, Takashi Miyauchi, Takeshi Morita
  • Publication number: 20100127289
    Abstract: An optical device capable of illuminating visual light with adjusting color temperature after fabrication is disclosed. The optical device includes a solid state light emitter and a phosphor layer, which is formed over the solid state light emitter. The solid state light emitter, which can be a light emitter diode (“LED”), converts electrical energy to blue light. The phosphor layer subsequently converts first light with a first wavelength to second light with a second wavelength. In one example, the first light is blue light while the second light is white light. A portion of the phosphor layer is adjusted after the phosphor layer is formed for adjusting color of the white light in accordance with color quality of the light detected by a light detector.
    Type: Application
    Filed: November 26, 2008
    Publication date: May 27, 2010
    Applicant: BRIDGELUX, Inc.
    Inventors: Rene P. Helbing, Alexander Shaikevitch
  • Publication number: 20100056008
    Abstract: A method for detecting a bright dot or a dark dot in a LCD comprising applying a first detection voltage to a color filter substrate common electrode and forming a first voltage difference between the color filter substrate common electrode and a pixel electrode on an array substrate; collecting a first luminance value of the bright dot or the dark dot after the bright dot or the dark dot is observed; switching the first detection voltage applied to the color filter substrate common electrode to a second detection voltage, and thus forming a second voltage difference between the color filter substrate common electrode and the pixel electrode; collecting a second luminance value of the bright dot or the dark dot; determining the difference between the first luminance value and the second luminance value, so that the bright dot or the dark dot can be determined to result from a liquid crystal cell defect or an array substrate defect.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 4, 2010
    Inventors: Li Li, Zhilong Peng
  • Publication number: 20090325450
    Abstract: An inspection method for an organic electroluminescence panel of the present invention includes the steps of: applying a predetermined voltage to each of pixels of color filters of respective types relative to an organic electroluminescence panel on which the color filters of the respective types are installed; with respect to leakage light generated from the organic electroluminescence panel, detecting the leakage light transmitted from each of the color filters of the respective types; adjusting each of the amounts of light emissions of the leakage light detected from the color filters of the respective types so as to be set within reference permissible values for each of the color filters of all the types; and based upon the amount of light emission of each of the leakage light detected from the color filters of the respective types of the organic electroluminescence panel, inspecting the organic electroluminescence panel.
    Type: Application
    Filed: June 26, 2009
    Publication date: December 31, 2009
    Inventors: Noriyuki SUZUKI, Hiroki KITAGAWA
  • Publication number: 20090275258
    Abstract: A liquid crystal display (LCD) panel transferring system including a panel transferring apparatus that takes out and transfers a LCD panel formed at a surface of a substrate; a camera installed at the panel transferring apparatus that captures an image of the LCD panel; and a controlling unit that aligns the LCD panel with the panel transferring apparatus based on an image captured using the camera. The panel transferring apparatus includes a main body, a plurality of suction holes formed at the main body that fix an LCD panel to the main body, and a pin formed at the peripheral area of the main body that applies an impact to a dummy region to separate the LCD panel from the substrate.
    Type: Application
    Filed: July 9, 2009
    Publication date: November 5, 2009
    Inventors: Kil-Hyun Jo, Hyung-Jin Park
  • Publication number: 20090215347
    Abstract: A test apparatus for a liquid crystal display device includes: a stage having a substrate thereon; a plurality of light emitting diodes (LEDs) on the stage and supplying a light to the substrate; a heating nozzle supplying a hot air to the substrate; a needle applying a test signal to the substrate; and a microscope inspecting the needle and the substrate.
    Type: Application
    Filed: November 21, 2008
    Publication date: August 27, 2009
    Inventor: Chae-Hyun Lee
  • Publication number: 20090195746
    Abstract: A liquid crystal aligning device (10) includes a UV light source (11), a plurality of liquid crystal cells (13), a mask (12), and a drive circuit (14) is described. The mask (12) is positioned between the liquid crystal cells, containing a mixture of a UV polyimide solution and liquid crystal molecules (131), and the UV light source. The drive circuit applies a voltage to the liquid crystal cells. The liquid crystal cells include a reflective area (13a) and a transmissive area (13b), and after exposing the liquid crystal cells to the UV light source and the voltage from the drive circuit, a pretilt angle of the liquid crystal molecules in the reflective area is larger than that in the transmissive area. Further, an alignment method for liquid crystal cells is also described.
    Type: Application
    Filed: June 30, 2008
    Publication date: August 6, 2009
    Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.
    Inventor: Kuei-Lin Chu
  • Publication number: 20090186550
    Abstract: Apparatus and methods for forming optoelectronic devices such as an array of light emitting diodes or photovoltaic cells employ in one embodiment a roll-to-roll process in which a uniquely configured roller having a plurality of spaced-apart raised coating surfaces is aligned with a plurality of columns of first electrodes on a substrate for coating a plurality of spaced-apart strips of optoelectronic materials along the longitudinal direction of the substrate and on a plurality of spaced-apart columns of the first electrodes.
    Type: Application
    Filed: January 21, 2008
    Publication date: July 23, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Donald Franklin FOUST, Hak Fei POON
  • Publication number: 20090135166
    Abstract: A pixel array section includes a plurality of pixel circuits disposed in a matrix and each including a driving transistor, a storage capacitor, an electro-optical element, and a sampling transistor. Each pixel circuit includes a pixel divided into a plurality of divisional pixels for each of which an electro-optical element is provided, and a test transistor provided between the driving transistor and the electro-optical elements for carrying out on/off operations for specifying whether or not the electro-optical element is a dark spot element so that the electro-optical element of the dark spot can be specified. The number of the test transistors is smaller than the number of the divisional elements of the original one pixel.
    Type: Application
    Filed: October 30, 2008
    Publication date: May 28, 2009
    Applicant: Sony Corporation
    Inventors: Katsuhide Uchino, Tetsuro Yamamoto
  • Patent number: 7497755
    Abstract: An apparatus for improving testability of electroluminescent displays (ELDs) comprises at least two sets of electrodes, one set for connecting rows of pixels, and a second set for connecting columns of pixels, wherein at least one electrode set is interleaved in two subsets. The first subset has electrode extensions of a first length, and the second subset has electrode extensions of a second, shorter, length. A first connector is disposed generally in a direction perpendicular to the electrode extensions of both subsets and in electrical contact with the electrode extensions of the second subset. A second connector is disposed generally in a direction perpendicular to the electrode extensions of the first subset, and in electrical contact with the electrode extensions of only the first subset. A set of insulating patches separate the electrode extensions of the first subset from the first connector.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: March 3, 2009
    Assignees: Ifire IP Corporation, Sanyo Electric Co., Ltd.
    Inventors: Hisashi Abe, Derek Luke
  • Publication number: 20080139072
    Abstract: A pixel observation system includes a memory unit, a coordinate generation unit, and an observation unit. The memory unit is configured to store at least nozzle information indicative of discharge states of a liquid material in a plurality of nozzles and arrangement information indicative of an arrangement of each of the nozzles with respect to each of a plurality of pixel regions in relative movement of the nozzles and a substrate. The coordinate generation unit is configured to generate observation coordinates of observation regions on the substrate based on the nozzle information and the arrangement information, and to include coordinates of at least some of the pixel regions over which the nozzles scan through one cycle of the relative movement in the observation coordinates. The observation unit is configured and arranged to observe the pixel regions positioned at the observation coordinates generated by the coordinate generation unit.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 12, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Toyotaro KINOSHITA
  • Patent number: 7226331
    Abstract: In an electron source manufacturing apparatus, the quantity of heat generated from an electron source substrate is measured. A temperature of a support member for the electron source substrate is controlled based on the measured quantity of heat generated. A variation in performances of electron source substrates is suppressed, which increase their life.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: June 5, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeto Kamata, Kazuhiro Oki, Akihiro Kimura, Kazumasa Takatsu
  • Patent number: 7108573
    Abstract: In order to be capable of high-precision gas measurement and evaluating influences of a gas on an electron source, and to predict a life of an image display device with high precision for a short period of time, there is provided a sealed container which is capable of maintaining an inside thereof to a lower pressure than an atmospheric pressure, and is used for an image display device including in the inside: a phosphor; an electron-emitting device for causing the phosphor to emit light; and a getter, the sealed container including an exhaust pipe having a breakable vacuum isolating member on at least one side of the image display device.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: September 19, 2006
    Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
  • Patent number: 7086919
    Abstract: A detection and repair system includes an optical microscope, an image-retrieving device, an emission detector, a data controller, and a laser beam generator. When detecting the location of a defect, the system charges a detected region of an organic electroluminescent device with a negative bias or low forward bias before the device is lighted on. Then, the emission detector detects the locations of defects, which generate emission such as photons, thermal or IR emission, in an enlarged image. The laser beam generator generates a laser beam, which is used to isolate one of the defects. Furthermore, this invention also discloses a method for detecting and repairing an organic electroluminescent device.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: August 8, 2006
    Assignee: RiTdisplay Corporation
    Inventors: Meng-Chieh Liao, Jiun-Haw Lee, Chi-Chung Chen
  • Patent number: 7037162
    Abstract: An optical fiber code holding structure, includes: an optical adapter and an optical fiber code holding member. An optical connector of an optical fiber is connected to an optical adapter. The optical connector is attached to an end of an optical fiber code of the optical fiber. The optical fiber code holding member has a light shielding device shielding lights emitted from the optical adapter and a holding device holding the optical fiber code.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: May 2, 2006
    Assignee: NEC Corporation
    Inventors: Shintaro Fujioka, Hiroshi Ootani, Yoshinori Nakamura, Hisakazu Meguro
  • Patent number: 6974941
    Abstract: A light source testing system includes a light source to form an image, an image capturing apparatus capturing the image by a plurality of pixels, and an image processing apparatus calculating a plurality of gray levels of the plurality of pixels to determine a characteristic parameter of the light source.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: December 13, 2005
    Assignee: BenQ Corporation
    Inventor: Chien-Fong Kuo
  • Patent number: 6962516
    Abstract: A voltage applying apparatus including a holder, a probe and the like as voltage applying means enabling the application of a voltage to electrode wiring connected with electric conductors formed on a substrate on which the electrode wiring is formed. The apparatus is equipped with aligning means making the position of the probe follow to the changes of the position of the electrode wiring to coincide with them. The aligning means makes the position of the probe follow the position of the electrode wiring so that the probe aligns the electrode wiring by the thermal expansion of the holder.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: November 8, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiro Ohki, Shigeto Kamata, Akihiro Kimura
  • Patent number: 6893309
    Abstract: A seamless magnetic sheath is mounted on a funnel of a cathode ray tube, behind the deflection windings of a deflection yoke. Various combinations of magnetic poles are formed in the sheath magnetic ferrite material for varying the beam landing location of the screen of a cathode ray tube. The seamless magnetic sheath is formed by an extrusion or a molding fabrication process.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: May 17, 2005
    Assignee: Thomson Licensing S.A.
    Inventors: Anthony Stanley Baran, Richard William Collins
  • Patent number: 6821180
    Abstract: This invention provides an electron source manufacturing apparatus and manufacturing method which facilitate downsizing and operation and are suitable for mass production. The electron source manufacturing apparatus includes a support which supports a substrate having conductors formed on it and has a means for adjusting the temperature of the substrate, a vessel which has a gas inlet port and gas exhaust port and covers a partial region on the surface of the substrate, an unit for introducing and exhausting gas into and from the vessel, and an unit for applying a voltage to the conductors. The support has a groove.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: November 23, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Kimura, Kazuhiro Ohki
  • Patent number: 6743066
    Abstract: In an electron source manufacturing method and apparatus, a plurality of electron-emitting devices are commonly connected to a first wiring and to a plurality of second wirings, respectively. A voltage V1 is applied to the plurality of devices connected to the first wiring by the difference between potentials applied to the first wiring and the plurality of second wirings.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: June 1, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahiro Oguchi, Noritake Suzuki
  • Patent number: 6739927
    Abstract: A position of an inner surface of a panel (10) is measured with the panel being held, and a position of a main surface of a color selection electrode (30) is measured with a color selection electrode frame (40) being held, so that the measured positional data provide a measured value corresponding to a spacing between the panel inner surface and the main surface of the color selection electrode. In a state that the engaging holes of the supporting members are engaged with dummy pins (200) arranged in a predetermined positional relationship to the panel pins (20) on the condition that the panel is held, the position of the main surface of the color selection electrode is adjusted with respect to engaging holes on the basis of the predetermined positional relationship and the measured value, and supporting members are fixed by welding to the color selection electrode frame.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: May 25, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masayuki Tsuruha, Kenichi Satoh, Kazuya Aoyama, Osamu Hirota
  • Patent number: 6712659
    Abstract: A method for controlling gap widths of a cell gap of an LCD panel and a relevant apparatus are provided. When a front substrate and a rear substrate of an LCD panel are being pressed to combine together before a sealant between hardens, gap widths at several measured points located on the front or rear substrate are monitored to provide a reference for modifying a parameter distribution, thereby fine-tuning the gap widths. Therefore, gap widths, equivalent to the uniformity of the cell gap, can meet the manufacturer's requirement, and LCD panel yields are increased.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: March 30, 2004
    Assignee: Hannstar Display Corp.
    Inventors: Li-Yi Chen, GowZin Yiu
  • Patent number: 6685522
    Abstract: Disclosed is a product quality test in a winding step of the entire manufacturing process of a deflection yoke, which is a core part of a display device employing a cathode ray tube such as a color TV or a monitor, and in particular, a winding zig for measuring magnetic fields of a deflection yoke and a magnetic field measuring system of a deflection yoke using the winding zig.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: February 3, 2004
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: In Jung Yun, Ho Jin Cho, Bong Woo Lee, Byung Hoon Kang, Kwang Yun Choi
  • Patent number: 6679744
    Abstract: Disclosed is an electron gun assembling method used for assembling a first electrode having a plurality of beam apertures as opposed to one cathode used as an electron beam emitting source with a cathode structure having the cathode. The method includes: a first step of rotating the cathode structure on its axis in a state in which the cathode structure is opposed to the first electrode, and measuring, during rotation of the cathode structure, a distance between each of the beam apertures of the first electrode and a beam emission plane of the cathode; and a second step of setting a rotational position of the cathode structure on the basis of the result measured in the first step. In the second step, particularly, the rotational position of the cathode structure may be set under a condition that the maximum one of the differences between the distances from the beam apertures of the first electrode to the beam emission plane of the cathode is minimized.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: January 20, 2004
    Assignee: Sony Corporation
    Inventor: Izuho Hatada
  • Patent number: 6661179
    Abstract: A method for adjusting electron emitting characteristics of a multi-electron source having plural electron emitting devices disposed on a substrate. The method comprises measuring electron emission characteristics of the devices and setting a characteristic adjustment target value. Plural characteristic shift voltages having discrete values are applied to some of the devices, electron emission characteristics of each of these devices are measured, and a characteristic adjustment table is generated for each characteristics shift voltage value according to change rates of these measured characteristics. A predetermined characteristics shift voltage value is selected based on the corresponding table, and that voltage is applied to the devices to cause their characteristics to shift towards the target value. A change in the electron emission characteristics is monitored to revise the characteristics shift condition.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: December 9, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuji Aoki, Takahiro Oguchi
  • Patent number: 6648708
    Abstract: An apparatus (20) for measuring alignment and tilt of a CRT neck (14) attached to a recycled CRT funnel portion (11) includes a support structure (21) that engages and supports a seal edge (24) of the CRT funnel portion (11), and a plurality of stopper pads (28-30) which engage respective alignment stoppers (34-36) molded on the CRT funnel portion (11). Distance measuring gauges (45-48) contact lower and upper points on two sides of the CRT neck (14). The alignment of the CRT neck (14) is determined by readings from the lower gauges (45, 47) on the first and second sides of the CRT neck (14). The tilt of the CRT neck (14) is measured by comparing the readings from the lower and upper gauges (45-48) on each of the first and second sides of the CRT neck. The stopper pads (28-30) on the support structure (21) can be changed to accommodate different sizes of CRT funnel portions (11, 11′).
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: November 18, 2003
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventor: Christopher Monks
  • Patent number: 6648709
    Abstract: An alignment tool (300) designed to replace a high-powered lamp with a low-powered lamp to facilitate safe alignment of a projector lamp console. The alignment tool (300) comprised of a cathode portion (302) and an anode portion (304) connected by one or more rods (306). The alignment tool holds a light source such as a flashlight (324) having an exposed bulb (320) in the approximate location of the arc of the high-powered lamp. The cathode and anode sockets and the reflector of the projector lamp console are adjusted until the exposed bulb (320) is at the F1 focal point of the reflector and the optical axis of the alignment tool is the optical axis of the reflector.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: November 18, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Bryan R. Teichgraeber, Steven P. Krycho
  • Publication number: 20030203699
    Abstract: A process for anticipating the service life of a rare gas discharge lamp and a system for anticipating the service life of a rare gas discharge lamp. In a process for anticipating the lifetime of a rare gas discharge lamp in which an arc tube contains an opposed anode and cathode and in which the cathode contains an emitter substance, the rare gas discharge lamp is supplied with a certain current which is lower than the rated current, the voltage of the rare gas discharge lamp is determined at this instant and the swing width of this voltage is measured, and using the value of the swing width of this voltage, the service life of the rare gas discharge lamp is anticipated.
    Type: Application
    Filed: April 28, 2003
    Publication date: October 30, 2003
    Applicant: Ushiodenki Kabushiki Kaisha
    Inventors: Masaharu Otsuka, Takeo Matsushima
  • Patent number: 6559591
    Abstract: A non-adhesive, conductive strip is used to provide an electrical ground path between a solder electrode on the anti-reflective film of a cathode ray tube and the reinforcement or heat shrinkage band on the tube. The conductive strip is preferably held in place on the cathode ray tube using a magnet or magnets. Consequently, because the conductive strip is held in place by magnets and is non-adhesive, it can be removed and replaced repeatedly during the testing of the solder electrodes and anti-reflective film without potentially damaging the solder electrode or degrading the performance of the conductive tape that is typically used as the ground path in a completed cathode ray tube.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: May 6, 2003
    Assignees: Sony Corporation, Sony Electronics, Inc.
    Inventor: David Allen Murtishaw
  • Publication number: 20030036331
    Abstract: A method for adjusting characteristics of an electron source having a plurality of electron-emitting devices, and a method for manufacturing the electron source include the step of applying a pulse of a voltage for adjustment to an electron-emitting device to be adjusted one or more times according to a characteristic of the electron-emitting device, wherein the voltage for adjustment is selected from a plurality of voltages having discrete values according to the characteristic of the electron-emitting device, and a number of applying times of the pulse is determined according to the characteristic of the electron-emitting device and the selected voltage.
    Type: Application
    Filed: August 2, 2002
    Publication date: February 20, 2003
    Inventors: Shuji Aoki, Takahiro Oguchi
  • Patent number: 6520818
    Abstract: The present invention provides a method of manufacturing a cathode ray tube, comprising a step of automatically setting peculiar information to a panel of a cathode ray tube, a step of performing a plurality of treatments on an inner surface of the panel of the cathode ray tube, thereby forming a phosphor film pattern on the inner surface, a step of automatically measuring a condition set in the phosphor film pattern forming step, a step of automatically storing a measurement value obtained in the measuring step such that the value is coupled with the peculiar information, a step of inspecting the panel obtained in the treatment step to determine whether or not the panel is defective, and a step of automatically storing a defectiveness code coupling with the peculiar information if the panel is determined to be defective.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: February 18, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuo Wakamatsu, Kazumasa Hirayama
  • Publication number: 20030027479
    Abstract: A panel inspection apparatus that contacts a PDP electrode, which is arranged on a display panel, with high accuracy. An inspection unit includes a pressurizing lever for pressing an inspection electrode, which is fastened to a fastening block, against the PDP electrode. The pressurizing levers move away from the display panel without altering the position of the fastening block.
    Type: Application
    Filed: December 14, 2001
    Publication date: February 6, 2003
    Applicant: Fujitsu Limited
    Inventor: Akira Sawamori
  • Patent number: 6514110
    Abstract: The adjustment apparatus automatically adjusts the position and angle of a deflection yoke attached to the neck part of a cathode ray tube. A cathode ray tube having a deflection yoke as an adjustment target attached to its neck part is fixed to a predetermined adjustment position such that its tube axis extends in the horizontal direction. The adjustment apparatus holds a deflection yoke attached to the neck part of the cathode ray tube fixed to an adjustment position by means of a hold mechanism. A test image displayed through a fluorescent surface of the cathode ray tube is picked up by a plurality of cameras. The deflection yoke held by the hold mechanism is moved based on image data picked up by the cameras. The position and angle of the deflection yoke with respect to the neck part are automatically adjusted.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: February 4, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazumasa Hirayama, Maki Yoshida, Tatsuhiko Asaka
  • Publication number: 20020193042
    Abstract: An apparatus (20) for measuring alignment and tilt of a CRT neck (14) attached to a recycled CRT funnel portion (11) includes a support structure (21) that engages and supports a seal edge (24) of the CRT funnel portion (11), and a plurality of stopper pads (28-30) which engage respective alignment stoppers (34-36) molded on the CRT funnel portion (11). Distance measuring gauges (45-48) contact lower and upper points on two sides of the CRT neck (14). The alignment of the CRT neck (14) is determined by readings from the lower gauges (45, 47) on the first and second sides of the CRT neck (14). The tilt of the CRT neck (14) is measured by comparing the readings from the lower and upper gauges (45-48) on each of the first and second sides of the CRT neck. The stopper pads (28-30) on the support structure (21) can be changed to accommodate different sizes of CRT funnel portions (11, 11′).
    Type: Application
    Filed: June 13, 2001
    Publication date: December 19, 2002
    Applicant: Sony Corporation
    Inventor: Christopher Monks
  • Publication number: 20020111101
    Abstract: A jig is used in place of a master Cathode Ray Tube (“CRT”) for calibrating a Stray Emissions Detection System (“SEDS”). Light Emitting Diodes (“LEDs”) are placed in the neck portion of a CRT, where the electron gun would normally be disposed, to form the test jig. These LEDs are activated during the calibration process to simulate the stray emissions that would be released through defects in a CRT. Because the number, pattern and light output of the LEDs can be controlled, and are not changed by the calibration procedure itself, the jig can be used to more reliably and effectively calibrate the SEDS for CRT manufacture.
    Type: Application
    Filed: February 12, 2001
    Publication date: August 15, 2002
    Applicant: Sony Corporation and Sony Electronics Inc.
    Inventors: David Allen Murtishaw, Harry Savage
  • Publication number: 20020034915
    Abstract: A spark plug gap adjustment system is provided which is designed to adjust a spark gap between a ground electrode and a center electrode installed in a spark plug to a target value. The system determines the position of the ground electrode in a given coordinate system to calculate a target distance required to move an end of the ground electrode toward an end of the center electrode for bringing the spark gap into agreement with the target value and moves the ground electrode under pressure by the target distance to define a desired spark gap. This achieves the spark gap adjustment precisely at high speeds.
    Type: Application
    Filed: September 17, 2001
    Publication date: March 21, 2002
    Inventor: Hiroshi Nakatani