Testing Or Adjusting Means Patents (Class 445/63)
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Patent number: 11815544Abstract: A display panel inspection jig includes a stage comprising a seating area in which a display panel is to be disposed for inspection thereof, and a peripheral area surrounding the seating area, and comprising an uneven upper surface and a lower surface, the seating area of the stage being provided with an opening, a first supporter disposed on a first portion of the uneven upper surface of the stage, and a first barrier disposed on a second portion of the uneven upper surface of the stage. The first portion of the uneven upper surface being at the seating area and spaced apart from the opening, and the second portion of the uneven upper surface is at the peripheral area. The first barrier has an uneven lower surface such that the uneven lower surface of the first barrier and the uneven upper surface of the stage are fitted with each other.Type: GrantFiled: May 24, 2021Date of Patent: November 14, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hansu Cho, Junghun Sin, Keeyong Kim, Minhyeon Yu
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Patent number: 10785875Abstract: A flexible printed circuit board and a display module are capable of enhancing a fixing force of the flexible printed circuit board to a display panel or an inspection jig, and prevent the flexible printed circuit board from being separated or detached as well as being torn upon attachment and detachment. The flexible printed circuit board includes a display panel including a display area and a non-display area; a flexible film attached to the display area and to which a driving unit is mounted; and a flexible printed circuit board attached to the flexible film and having a connector for receiving external signals, wherein the flexible printed circuit board includes: at least one hole fixing the flexible printed circuit board to a rear surface of the display panel by bending the flexible film; and at least one indent fixed to an inspection jig.Type: GrantFiled: December 10, 2018Date of Patent: September 22, 2020Assignee: LG Display Co., Ltd.Inventor: Juhee Eun
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Publication number: 20150104991Abstract: 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: ApplicationFiled: June 13, 2013Publication date: April 16, 2015Inventors: Joris Biskop, Richard Van De Vrie
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Patent number: 8968045Abstract: 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: GrantFiled: October 28, 2013Date of Patent: March 3, 2015Assignee: NuFlare Technology, Inc.Inventor: Kenichi Saito
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Patent number: 8939808Abstract: 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: GrantFiled: November 11, 2011Date of Patent: January 27, 2015Assignee: NGK Spark Plug Co., Ltd.Inventors: Jiro Kyuno, Keiji Ozeki, Tomoaki Kato, Akiko Maruno
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Patent number: 8876569Abstract: 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: GrantFiled: July 20, 2012Date of Patent: November 4, 2014Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.Inventors: Bingyu Chen, Huan Tang, Tingze Dong, Ying Liu
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Publication number: 20140141687Abstract: 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: ApplicationFiled: November 25, 2012Publication date: May 22, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co., LTD.Inventors: Shengpeng Mo, Wenpin Chiang
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Publication number: 20140127962Abstract: 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: ApplicationFiled: July 20, 2012Publication date: May 8, 2014Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Bingyu Chen, Huan Tang, Tingze Dong, Ying Liu
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Publication number: 20130337716Abstract: 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: ApplicationFiled: June 25, 2012Publication date: December 19, 2013Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO. LTD.Inventors: Jinjie Wang, Cheng-hung Chen
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Publication number: 20130316609Abstract: 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: ApplicationFiled: December 27, 2012Publication date: November 28, 2013Applicant: LG DISPLAY CO., LTD.Inventors: KiHyun Kwon, YeongGeun Hwang, JaeYoung Oh, SangYoung Lee, ByeongKeun Kim, JinKyoung Kim, GiSang Hong, EunJin Bae
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Patent number: 8292686Abstract: 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: GrantFiled: August 6, 2010Date of Patent: October 23, 2012Assignee: Mitsubishi Electric CorporationInventors: Shinichi Oe, Kazutaka Ikeda, Akira Nakamura, Motoaki Tamaya
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Patent number: 8257126Abstract: 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: GrantFiled: June 26, 2008Date of Patent: September 4, 2012Assignee: Sumitomo Chemical Company, LimitedInventor: Fumihiro Sakano
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Publication number: 20120086323Abstract: 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: ApplicationFiled: October 7, 2011Publication date: April 12, 2012Applicant: Polymer Vision B.V.Inventors: Michel Josephus Marie Somers, Fredericus Johannes Touwslager, Nicolaas Aldegonda Jan Maria van Aerle
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Patent number: 7955151Abstract: 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: GrantFiled: August 20, 2008Date of Patent: June 7, 2011Assignee: Sony CorporationInventor: Hiroshi Fujimaki
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Publication number: 20100279575Abstract: 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: ApplicationFiled: December 1, 2009Publication date: November 4, 2010Applicant: Bridgelux, Inc.Inventors: Tao Xu, Rene Helbing
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Patent number: 7774152Abstract: 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: GrantFiled: December 28, 2005Date of Patent: August 10, 2010Assignee: Canon Kabushiki KaishaInventor: Yasuhiro Hamamoto
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Publication number: 20100151761Abstract: 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: ApplicationFiled: December 16, 2009Publication date: June 17, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro Miyazaki, Takashi Miyauchi, Takeshi Morita
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Publication number: 20100127289Abstract: 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: ApplicationFiled: November 26, 2008Publication date: May 27, 2010Applicant: BRIDGELUX, Inc.Inventors: Rene P. Helbing, Alexander Shaikevitch
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Publication number: 20100056008Abstract: 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: ApplicationFiled: August 26, 2009Publication date: March 4, 2010Inventors: Li Li, Zhilong Peng
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Publication number: 20090325450Abstract: 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: ApplicationFiled: June 26, 2009Publication date: December 31, 2009Inventors: Noriyuki SUZUKI, Hiroki KITAGAWA
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Publication number: 20090275258Abstract: 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: ApplicationFiled: July 9, 2009Publication date: November 5, 2009Inventors: Kil-Hyun Jo, Hyung-Jin Park
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Publication number: 20090215347Abstract: 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: ApplicationFiled: November 21, 2008Publication date: August 27, 2009Inventor: Chae-Hyun Lee
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Publication number: 20090195746Abstract: 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: ApplicationFiled: June 30, 2008Publication date: August 6, 2009Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.Inventor: Kuei-Lin Chu
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Publication number: 20090186550Abstract: 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: ApplicationFiled: January 21, 2008Publication date: July 23, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Donald Franklin FOUST, Hak Fei POON
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Publication number: 20090135166Abstract: 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: ApplicationFiled: October 30, 2008Publication date: May 28, 2009Applicant: Sony CorporationInventors: Katsuhide Uchino, Tetsuro Yamamoto
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Patent number: 7497755Abstract: 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: GrantFiled: September 29, 2004Date of Patent: March 3, 2009Assignees: Ifire IP Corporation, Sanyo Electric Co., Ltd.Inventors: Hisashi Abe, Derek Luke
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Publication number: 20080139072Abstract: 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: ApplicationFiled: December 5, 2007Publication date: June 12, 2008Applicant: SEIKO EPSON CORPORATIONInventor: Toyotaro KINOSHITA
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Patent number: 7226331Abstract: 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: GrantFiled: October 5, 2004Date of Patent: June 5, 2007Assignee: Canon Kabushiki KaishaInventors: Shigeto Kamata, Kazuhiro Oki, Akihiro Kimura, Kazumasa Takatsu
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Patent number: 7108573Abstract: 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: GrantFiled: October 14, 2003Date of Patent: September 19, 2006Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
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Patent number: 7086919Abstract: 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: GrantFiled: May 21, 2003Date of Patent: August 8, 2006Assignee: RiTdisplay CorporationInventors: Meng-Chieh Liao, Jiun-Haw Lee, Chi-Chung Chen
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Patent number: 7037162Abstract: 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: GrantFiled: May 29, 2002Date of Patent: May 2, 2006Assignee: NEC CorporationInventors: Shintaro Fujioka, Hiroshi Ootani, Yoshinori Nakamura, Hisakazu Meguro
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Patent number: 6974941Abstract: 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: GrantFiled: August 20, 2004Date of Patent: December 13, 2005Assignee: BenQ CorporationInventor: Chien-Fong Kuo
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Patent number: 6962516Abstract: 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: GrantFiled: September 9, 2002Date of Patent: November 8, 2005Assignee: Canon Kabushiki KaishaInventors: Kazuhiro Ohki, Shigeto Kamata, Akihiro Kimura
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Patent number: 6893309Abstract: 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: GrantFiled: January 13, 2004Date of Patent: May 17, 2005Assignee: Thomson Licensing S.A.Inventors: Anthony Stanley Baran, Richard William Collins
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Patent number: 6821180Abstract: 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: GrantFiled: June 26, 2001Date of Patent: November 23, 2004Assignee: Canon Kabushiki KaishaInventors: Akihiro Kimura, Kazuhiro Ohki
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Patent number: 6743066Abstract: 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: GrantFiled: February 24, 2000Date of Patent: June 1, 2004Assignee: Canon Kabushiki KaishaInventors: Takahiro Oguchi, Noritake Suzuki
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Patent number: 6739927Abstract: 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: GrantFiled: December 5, 2002Date of Patent: May 25, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masayuki Tsuruha, Kenichi Satoh, Kazuya Aoyama, Osamu Hirota
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Patent number: 6712659Abstract: 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: GrantFiled: July 10, 2001Date of Patent: March 30, 2004Assignee: Hannstar Display Corp.Inventors: Li-Yi Chen, GowZin Yiu
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Patent number: 6685522Abstract: 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: GrantFiled: June 8, 2001Date of Patent: February 3, 2004Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: In Jung Yun, Ho Jin Cho, Bong Woo Lee, Byung Hoon Kang, Kwang Yun Choi
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Patent number: 6679744Abstract: 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: GrantFiled: March 2, 2001Date of Patent: January 20, 2004Assignee: Sony CorporationInventor: Izuho Hatada
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Patent number: 6661179Abstract: 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: GrantFiled: August 26, 2002Date of Patent: December 9, 2003Assignee: Canon Kabushiki KaishaInventors: Shuji Aoki, Takahiro Oguchi
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Patent number: 6648709Abstract: 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: GrantFiled: December 21, 2000Date of Patent: November 18, 2003Assignee: Texas Instruments IncorporatedInventors: Bryan R. Teichgraeber, Steven P. Krycho
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Patent number: 6648708Abstract: 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: GrantFiled: June 13, 2001Date of Patent: November 18, 2003Assignees: Sony Corporation, Sony Electronics Inc.Inventor: Christopher Monks
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Publication number: 20030203699Abstract: 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: ApplicationFiled: April 28, 2003Publication date: October 30, 2003Applicant: Ushiodenki Kabushiki KaishaInventors: Masaharu Otsuka, Takeo Matsushima
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Patent number: 6559591Abstract: 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: GrantFiled: June 5, 2001Date of Patent: May 6, 2003Assignees: Sony Corporation, Sony Electronics, Inc.Inventor: David Allen Murtishaw
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Publication number: 20030036331Abstract: 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: ApplicationFiled: August 2, 2002Publication date: February 20, 2003Inventors: Shuji Aoki, Takahiro Oguchi
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Patent number: 6520818Abstract: 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: GrantFiled: October 21, 1999Date of Patent: February 18, 2003Assignee: Kabushiki Kaisha ToshibaInventors: Yasuo Wakamatsu, Kazumasa Hirayama
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Publication number: 20030027479Abstract: 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: ApplicationFiled: December 14, 2001Publication date: February 6, 2003Applicant: Fujitsu LimitedInventor: Akira Sawamori
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Patent number: 6514110Abstract: 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: GrantFiled: December 23, 1999Date of Patent: February 4, 2003Assignee: Kabushiki Kaisha ToshibaInventors: Kazumasa Hirayama, Maki Yoshida, Tatsuhiko Asaka
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Publication number: 20020193042Abstract: 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: ApplicationFiled: June 13, 2001Publication date: December 19, 2002Applicant: Sony CorporationInventor: Christopher Monks