WO2005055267A1 - 発光管アレイ型表示装置およびその駆動方法 - Google Patents
発光管アレイ型表示装置およびその駆動方法 Download PDFInfo
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- WO2005055267A1 WO2005055267A1 PCT/JP2003/015365 JP0315365W WO2005055267A1 WO 2005055267 A1 WO2005055267 A1 WO 2005055267A1 JP 0315365 W JP0315365 W JP 0315365W WO 2005055267 A1 WO2005055267 A1 WO 2005055267A1
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- arc tube
- electrode
- discharge
- address
- light emitting
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/22—Electrodes, e.g. special shape, material or configuration
- H01J11/32—Disposition of the electrodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/2803—Display of gradations
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
- G09G3/292—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for reset discharge, priming discharge or erase discharge occurring in a phase other than addressing
- G09G3/2927—Details of initialising
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
- G09G3/294—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for lighting or sustain discharge
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/298—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels using surface discharge panels
- G09G3/2983—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels using surface discharge panels using non-standard pixel electrode arrangements
- G09G3/2986—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels using surface discharge panels using non-standard pixel electrode arrangements with more than 3 electrodes involved in the operation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/10—AC-PDPs with at least one main electrode being out of contact with the plasma
- H01J11/18—AC-PDPs with at least one main electrode being out of contact with the plasma containing a plurality of independent closed structures for containing the gas, e.g. plasma tube array [PTA] display panels
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/22—Electrodes, e.g. special shape, material or configuration
- H01J11/24—Sustain electrodes or scan electrodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/06—Details of flat display driving waveforms
- G09G2310/066—Waveforms comprising a gently increasing or decreasing portion, e.g. ramp
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0228—Increasing the driving margin in plasma displays
Definitions
- the present invention relates to an arc tube array type display device and a driving method thereof, and more particularly, to an arc tube in which a phosphor layer is disposed inside a thin tube having a diameter of about 0.5 to 5 mm and a discharge gas is sealed.
- the present invention relates to a light emitting tube array type display device in which a plurality of display tubes (also referred to as “display tubes” and “gas discharge tubes”) are arranged in parallel to display an arbitrary image, and a driving method thereof.
- display tubes also referred to as “display tubes” and “gas discharge tubes”
- FIG. 18 is a partial cross-sectional view of FIG. 17, showing a state where the display device is cut in a direction orthogonal to the longitudinal direction of the arc tube.
- arc tube array type display device a large number of arc tubes 1 (arc tube arrays) arranged in parallel are sandwiched between a pair of flat supports 31 1 and 32 made of glass or resin, for example. Is composed. Further, a support using a transparent film sheet as a support is also known. Inside the arc tube 1, a phosphor layer R for red, a phosphor layer G for green, and a phosphor layer B for blue are arranged. Is enclosed.
- discharge is generated inside the arc tube, and electrodes for that purpose are formed on the surface of the support facing the arc tube array so that the electrodes are in contact with the surface of the arc tube. ing.
- an address electrode (also referred to as a data electrode) A is arranged along each arc tube on the back surface of the support 32 facing the arc tube array, and the front side (display surface side) is supported.
- a large number of display electrode pairs X and Y for surface discharge are arranged on the surface of the body 31 facing the arc tube array in a direction crossing the address electrodes A.
- Each display electrode is formed by the path electrode 1 3 ing a transparent electrode 1 2 and the metal film made of ITO film or S n 0 2 film.
- Each address electrode A is formed of a metal film.
- the Y electrode of the display electrode pair is used as a scanning electrode, and an address discharge is generated at the intersection of the Y electrode and the address electrode A to select a light emitting area. I do.
- a display discharge also referred to as a sustain discharge or a sustain discharge
- the arc tube 1 emits red light 33, green light 34, and blue light 35.
- the address discharge is a counter discharge generated in the arc tube 1 between the Y electrode and the address electrode A, which face each other with the arc tube 1 interposed therebetween, and the display discharge is arranged in parallel on a plane. Between the two display electrodes X and Y This is a surface discharge generated in the light tube 1. With such an electrode arrangement, a plurality of light-emitting regions (unit light-emitting regions) are formed in the longitudinal direction of the arc tube.
- the display discharge is a surface discharge.
- a phosphor layer is formed on the back side inside the light emitting tube, but the surface discharge region is far from the phosphor layer, so that the vacuum ultraviolet rays for excitation are not sufficiently supplied to the phosphor layer.
- the light blocking ratio is large and the luminous efficiency is low.
- a PDP plasma display panel
- the present invention is applied to the present invention.
- a PDP as described in Japanese Patent Application Laid-Open No. 2000-33016 is known.
- This PDP has a configuration in which display electrodes are arranged on the side surfaces of the partition walls.
- the present invention has been made in view of such circumstances, and separately provides a scanning electrode and a display discharge electrode pair, and arranges the display discharge electrode pair on the side surface of the arc tube. With a four-electrode structure, the aim is to reduce discharge voltage and improve luminous efficiency.
- an arc tube array in which a plurality of arc tubes each having a discharge gas sealed therein is arranged, and at least one of a display surface side and a back side of the arc tube array is supported to support the arc tube array.
- a plurality of display electrodes which are disposed adjacent to the support and between the light emitting tube and the arc tube, and which apply a voltage to each arc tube from both sides to generate a counter discharge in the arc tube;
- a plurality of scan electrodes are arranged on the display surface side of the tube in a stripe shape in a direction intersecting the longitudinal direction of the arc tube, and form a light emitting area at the intersection with the arc tube.
- An arc tube array type display device comprising: a plurality of address electrodes for selecting a light emitting region.
- the present invention also relates to a method for driving the arc tube array type display device, wherein in displaying a screen, one frame is composed of a plurality of subfields having different luminances, and each subfield is
- the reset period consists of a reset period for initializing the charges in all the light-emitting regions, an address period for selecting the light-emitting region to emit light, and a sustain period for emitting light in the selected light-emitting region.
- a voltage pulse is applied to the electrodes to generate a discharge in all light emitting regions, and a scan pulse is sequentially applied to the scan electrodes during the address period, and a scan pulse is applied to the desired address electrodes during the address period.
- a method for driving a light emitting tube array type display device comprising: forming a charge in a charge compensation period, and generating a discharge for bringing the charge formed in the writing period into a state suitable for the next address discharge. It is.
- the discharge between the display electrodes is performed by a counter discharge. Therefore, the discharge voltage between the display electrodes can be reduced as compared with the arc tube array type display device in which the discharge between the display electrodes is performed by surface discharge, and furthermore, it is arranged on the display surface side of the arc tube array.
- the light blocking rate of light emitted from the arc tube array can be reduced. This makes it possible to provide a luminous tube array type display device having higher luminance and good luminous efficiency, making use of a low discharge voltage and a low light blocking ratio.
- FIG. 1 is an explanatory diagram showing the overall configuration of the arc tube array type display device of the present invention.
- FIG. 2 is a cross-sectional view of the arc tube array type display device shown in FIG. 1, and FIG. 3 is an explanatory diagram showing a configuration example of an electrode.
- FIG. 4 is an explanatory view showing a pattern example of the display electrode.
- FIG. 5 is an explanatory view showing a pattern example of a display electrode
- FIG. 6 is an explanatory view showing a pattern example of a display electrode
- FIG. 7 is an explanatory view showing a pattern example of a display electrode
- FIG. 9 is an explanatory diagram showing an example of a pattern of a display electrode
- FIG. 10 is an explanatory diagram showing an example of a pattern of a scan electrode
- FIG. 11 is an example of a pattern of a scan electrode.
- FIG. 12 is an explanatory view showing a pattern example of a scan electrode
- FIG. 13 is an explanatory view showing a comparative example of a driving method.
- FIG. 14 is an explanatory diagram showing an example of a basic driving waveform of the driving method of the present invention.
- FIG. 15 is an explanatory diagram showing another example of a driving waveform of the driving method of the present invention.
- FIG. 16 is an explanatory view showing an example of the arrangement of the driving circuits.
- FIG. 17 is a perspective view showing the whole of a conventional surface discharge type arc tube array type display device.
- FIG. 18 is a partial sectional view of the arc tube array type display device of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- the arc tube array may be any one in which a plurality of arc tubes in which a discharge gas is sealed are juxtaposed.
- the tubing of the arc tube may be of any diameter, but is preferably about 0.5 to 5 mm in diameter.
- the one made of glass is applied.
- the shape of the thin tube may have any shape such as a circular cross section, a flat elliptical cross section, and a rectangular cross section.
- the support only needs to support the arc tube array by contacting at least one of the display surface side and the back surface side of the arc tube array.
- a flexible sheet made of resin or a glass substrate can be used as the support.
- resin-made flexible sheets include light-transmitting film sheets.
- a film used for this film sheet a commercially available PET (polyethylene terephthalate) film or the like can be used.
- the glass substrate include a substrate made of soda lime glass.
- the support preferably comprises a pair of supports capable of supporting the arc tube array from both the display surface side and the back surface side. In this case, it is not necessary that both are made of the same material, and any configuration is possible, such as forming one with resin and the other with glass.
- the size of the support is desirably sheet-like or plate-like so as to support the entire arc tube array, and is large enough to cover almost the entire arc tube array.
- the display electrode may be disposed at an adjacent portion between the arc tubes, and may be any electrode capable of applying a voltage to each arc tube from both sides to generate a counter discharge in the arc tube.
- This display electrode can be formed using various materials known in the art.
- Materials used for the electrodes include, for example, ITO, and transparent conductive material such as S n O 2, A g, A u, A 1, C u, include metal conductive materials such as C r is.
- As a method for forming an electrode various methods known in the art can be applied. For example, it may be formed using a thick film forming technique such as printing, or may be formed using a thin film forming technique such as a physical deposition method or a chemical deposition method. Examples of the thick film forming technology include a screen printing method.
- examples of the physical deposition method include an evaporation method and a sputtering method.
- Examples of the chemical deposition method include a thermal CVD method, a photo CVD method, and a plasma CVD method.
- the display electrode may be formed on the outer wall surface on both sides of the arc tube, or may be formed on the outer wall surface on one side of the arc tube, and one display electrode between adjacent arc tubes may be formed. It may be configured to be shared.
- the display electrode be composed of a thick electrode portion corresponding to a light emitting region and a thin electrode portion corresponding to a non-light emitting region. In this case, it is desirable that the fine electrode portion is formed near the back of the arc tube array.
- the scan electrode may be arranged on the display surface side of the arc tube in a strip shape in a direction crossing the longitudinal direction of the arc tube, and may be any electrode that can form a light emitting region at the intersection with the arc tube.
- This scan electrode is desirably formed on the arc tube facing surface of the support disposed on the display surface side of the arc tube array from the viewpoint of ease of formation.
- An address electrode is provided on the back side of each arc tube for selecting the luminous area. What is necessary is just the thing arrange
- This address electrode is preferably composed of a thick electrode portion corresponding to the light emitting region and a thin electrode portion corresponding to the non-light emitting region.
- These scan electrodes and address electrodes can also be formed using various materials and methods known in the art.
- the present invention also relates to a method for driving the arc tube array type display device, wherein in displaying a screen, one frame is composed of a plurality of subfields having different luminances, and each subfield is
- the reset period consists of a reset period for initializing the charges in all the light-emitting regions, an address period for selecting the light-emitting region to emit light, and a sustain period for emitting light in the selected light-emitting region.
- a voltage pulse is applied to the electrodes to generate a discharge in all the light emitting regions.
- a scan pulse is sequentially applied to the scan electrode, and during that time, a scan pulse is applied to the desired address electrode.
- a method for driving an arc tube array type display device is characterized in that a discharge is generated to bring the charge formed in the writing period into a state suitable for the next address discharge.
- the voltage pulse applied between the scan electrode and the address electrode and the voltage pulse applied between the two display electrodes are voltages that exceed the firing voltage. It is desirable.
- the voltage pulse applied to the scan electrode may be blunt.
- the blunt wave means a voltage pulse whose peak value gradually rises. The degree of increase may be linear or curved (exponential).
- the voltage pulse applied to one of the display electrodes may have a blunt wave.
- the blunt wave in this case also means a voltage pulse whose peak value gradually increases, and the degree of this rise may be linear or curved (exponential). It is desirable that the voltage value of these obtuse waves is about 1.5 to 3 times the respective static firing voltage.
- the voltage pulse applied during the charge compensation period is a charge compensation pulse between the display electrodes that generates a discharge between the two display electrodes facing each other with the arc tube in between, and a discharge is generated between the scan electrode and the address electrode. It is desirable to use the address and the charge compensation pulse between the scan electrodes.
- the charge compensation pulse between the display electrodes and the address scan may be a blunt wave.
- the blunt wave means a voltage pulse whose peak value gradually decreases.
- the degree of decline may be linear or curved (exponential). It is desirable that the charge compensation pulse between the display electrodes precedes the charge compensation pulse between the address and scan electrodes.
- the peak value of the fixed potential given to the address electrode is the same as the peak value of the address pulse, and the fixed potential given to the scan electrode is the same as the peak value of the sustain pulse. desirable.
- the fixed potential applied to the display electrodes facing each other across the arc tube is not less than the peak value of the sustain pulse and not more than the discharge starting voltage between the two electrodes, and furthermore, the discharge is generated between the address electrode and the scan electrode.
- the potential is such that a sustain discharge can be generated by using the charge formed by the discharge as a trigger.
- the present invention relates to an arc tube array type display device, wherein the driving voltage is low. Bottom and luminous efficiency are improved.
- a scanning electrode hereinafter referred to as a scan electrode
- an address electrode hereinafter referred to as an address electrode
- a pair of main electrodes for display are provided in each light emitting region of one arc tube. It has a four-electrode structure in which electrodes (hereinafter referred to as display electrodes) are arranged. Then, a pair of display electrodes are arranged on the side wall of the arc tube, a scan electrode is arranged on the front side of the arc tube in a direction intersecting the longitudinal direction of the arc tube, and a pad electrode is arranged on the back side of the arc tube. It is arranged parallel to the longitudinal direction. The padless discharge is generated between the scan electrode and the padless electrode, and the priming effect causes a sustain discharge between the pair of display electrodes.
- FIG. 1 is an explanatory diagram showing the overall configuration of the arc tube array type display device of the present invention.
- a phosphor layer is arranged inside a glass tube having a diameter of about 0.5 to 5 mm, and a plurality of arc tubes containing a discharge gas are arranged in parallel.
- This is an arc tube array type display device.
- 31 is a support (substrate) on the front side (display surface side)
- 32 is a support (substrate) on the back side
- 1 is an arc tube
- S is a scan electrode
- X and Y are displays.
- the electrode A is an address electrode.
- a plurality of arc tubes 1 are arranged in parallel to form an arc tube array, and the arc tube array is sandwiched between a support 31 on the front side and a support 32 on the back side. It has a configuration.
- the front support 31 and the back support 32 are made of a flexible sheet such as a PET film.
- the support 31 on the front side is transparent.
- the support 32 on the back side is preferably opaque in view of the contrast of the display.
- the tube of the arc tube 1 is made of borosilicate glass or the like.
- a plurality of scan electrodes S are formed on the arc tube facing surface of the support 31 on the front side.
- the scan electrode S is provided so as to be in contact with the arc tube 1 in a direction crossing the address electrode A.
- Scan electrode S of this includes a transparent electrode such as ITO or S n O 2, Interview nickel, copper, aluminum, and a path electrodes made of metal such as chromium.
- the scan electrode S may be an electrode formed only of a metal electrode without using a transparent electrode.
- An address electrode A is formed on the back side of the support 32 facing the arc tube. It is made.
- the address electrode A is provided so as to contact the arc tube 1 along the longitudinal direction of the arc tube 1.
- the address electrode A is formed using nickel, copper, aluminum, silver, or the like.
- the display electrodes X and Y are arranged between the arc tube 1 and the arc tube 1.
- the display electrodes X and Y are formed directly on the outer wall surface of the light emitting tube by a sputtering method, a vapor deposition method, a plating method, a printing method, or the like using nickel, copper, aluminum, silver, or the like.
- the scan electrode S is arranged on the front side of the arc tube 1
- the address electrode A is arranged on the back side of the arc tube 1
- the side surface of the arc tube 1 is arranged.
- Display electrodes X and Y are arranged.
- the scan electrode S and the address electrode A are arranged so as to be orthogonal to each other when the display device is viewed in a plan view, and the intersection between the address electrode A and the scan electrode S is a unit light emitting area (unit). (Discharge area).
- the electrode structure of the arc tube array type display device is a four-electrode structure in which the scan electrode S, the address electrode A, and the display electrodes X and Y are arranged in one light emitting region.
- an address discharge is generated at the intersection of the scan electrode S and the address electrode A to select a light-emitting area, and the wall charge formed on the inner surface of the tube in the area is used with the address discharge.
- a sustain discharge is generated between the display electrodes X and Y.
- the address discharge is an opposite discharge generated in the arc tube 1 between the scan electrode S and the address electrode A, and the sustain discharge is generated between the display electrodes X and Y arranged on the side surface of the arc tube 1. Generated within the arc tube 1 This is the opposite discharge.
- FIG. 2 is an explanatory diagram showing a cross section of the arc tube array type display device. This figure shows a cross section orthogonal to the longitudinal direction of the arc tube.
- the tube of the arc tube 1 is a thin tube made of glass.
- This thin tube has a circular cross section and is made of Pyrex (registered trademark: heat-resistant glass manufactured by Ko Jung Co., USA) with a tube diameter of 0.7 to 1.5 mm and a wall thickness of 0.07 to It was manufactured in a size of 0.1 mm and a length of 220 to 300 mm.
- Pyrex registered trademark: heat-resistant glass manufactured by Ko Jung Co., USA
- a cylindrical tube is manufactured by the Danner method, and the cylindrical tube is heated and molded to form a glass base material similar in shape to the thin tube to be manufactured. It is made by redrawing (stretching) while heating and softening.
- red light 33, green light 34, and blue light 35 are emitted from arc tube 1, and these three adjacent arc tubes for R, G, and B form a set. Thus, one pixel is formed.
- a structure known in the art as described in JP-A-2003-86142 can be applied.
- the display electrodes X and Y are not formed directly on the outer wall surface of the arc tube, but are formed on both sides of a resin sheet or the like by low-temperature sputtering or printing, and the electrodes are used as display electrodes X and Y. Between the tube and the arc tube You may make it pinch and contact a side surface of an arc tube. However, this display electrode is desirably formed directly on the arc tube in order to increase the contact area with the arc tube.
- FIG. 2 shows an example in which one display electrode is shared by adjacent arc tubes, but a display electrode may be formed on each outer wall surface of the arc tube.
- the display electrodes of the adjacent arc tubes come into contact with each other. Therefore, in the case of a sustain discharge, a voltage is applied to two adjacent display electrodes with the same polarity.
- FIG. 3 is an explanatory diagram showing a configuration example of an electrode. In this figure, only one arc tube is shown.
- the arc tube of this example has a rectangular cross section, but the arc tube is not limited to this, and the cross section may have any shape such as a circle, an ellipse, a rectangle, and a trapezoid.
- the scan electrode S is formed on the support on the front side, and the address electrode A is formed on the support on the back side.
- the display electrodes X and Y are formed directly on the side surface of the arc tube 1.
- the display electrodes X and Y are thick electrode portions Xa and Ya in order to improve the discharge characteristics in the light emitting area at the intersection of the scan electrode S and the address electrode A.
- the thick electrodes Xa and Ya are formed at the center of the outer wall surface of the arc tube.
- the fine electrodes Xb and Yb are formed on the outer wall of the arc tube near the back.
- the two display electrodes X and Y are in the light emitting region (light emitting cell).
- the width of the electrode is periodically changed in order to delimit), and the thick electrodes Xa and Ya are arranged so as to face each other. This is because the light emitting region is defined by utilizing the fact that the discharge voltage varies depending on the area of the facing electrode.
- FIGS. 4 to 9 are explanatory diagrams showing examples of display electrode patterns.
- the electrode pattern shown in Fig. 4 is a basic pattern in which the discharge region, that is, the thick electrode portions Xa and Ya are formed of a solid metal film.
- the fine electrode portions Xb and Yb all have the same pattern in FIGS.
- the electrode pattern shown in Fig. 5 is such that the thick electrode portions Xa and Ya are formed in a comb shape.
- the electrode pattern shown in FIG. 6 is obtained by forming thick electrode portions Xa and Ya in a ladder shape.
- the electrode pattern shown in FIGS. 7 to 8 is a modification of the electrode pattern shown in FIGS. 4 to 6, and includes a connecting portion for connecting the thick electrode portions Xa and Ya to the thin electrode portions Xb and Yb. Xc and Yc are provided.
- FIG. 7 shows the thick electrode portions Xa and Ya formed by a solid metal film
- FIG. 8 shows the thick electrode portions Xa and Ya formed in a comb shape
- FIG. The electrode portions Xa and Ya are formed in a ladder shape.
- the electrode patterns in FIGS. 5 and 6 are used for the purpose of reducing the capacitance, reducing the discharge current, improving the luminous efficiency, improving the operation margin, and the like, in comparison with the electrode patterns in FIG.
- the electrode patterns of FIGS. 8 and 9 are used for the purpose of reducing the capacitance, reducing the discharge current, improving the luminous efficiency, improving the operation margin, and the like, with respect to the electrode pattern of FIG.
- the thick electrode portions Xa and Ya of the display electrodes X and Y are not limited to the above example, and may have any shape as long as the area is larger than the narrow electrode portions Xb and Yb.
- FIGS. 10 to 12 are explanatory diagrams showing examples of scan electrode patterns.
- the electrode width should be as narrow as possible. However, if the width of the electrode is small, the area of the intersection between the scan electrode S and the address electrode A is reduced, which causes an increase in the firing voltage and a decrease in the discharge probability.
- a Sukiyan electrode S, and a wide transparent electrode width consisting of I Ding 0 film Ya 3 n 0 2 film or the like, and the configuration child in a narrow path electrode width formed of a metal film desirably .
- FIG. 10 shows an example in which the scan electrode S is formed only of a metal film.
- FIGS. 11 and 12 show examples in which the scan electrode S is formed by the pass electrode S 1 and the transparent electrode S 2.
- the difference between FIG. 11 and FIG. 12 is that in FIG. 11 the transparent electrode S2 is provided on the entire scan electrode, whereas in FIG. 12 the transparent electrode S2 is provided only on the light emitting area.
- the capacitance can be reduced as compared with the case where the transparent electrode S2 is provided on the whole.
- the intersection between the scan electrode S and the address electrode A is a light emitting region, it is desirable that the corresponding portion of the light emitting region of the address electrode A be wider than the other portions.
- the surface discharge is generated between the display electrodes by providing the display electrodes on the outer wall surface of the arc tube, setting the sustain discharge to the counter discharge, and setting the number of scan electrodes to one for one light emitting region.
- a display device with higher luminance and good luminous efficiency can be obtained by utilizing the low discharge starting voltage and the low light blocking ratio.
- the driving method of the present invention is a driving method of the above-described four-electrode-structured arc tube array type display device, and utilizes a structural advantage of the arc tube and a low discharge starting voltage of the opposed discharge. As a result, it is possible to improve a reduction in light emission efficiency due to a high driving voltage and a high light blocking ratio, which is a problem in the arc tube type display device in which the sustain discharge is generated by surface discharge.
- an address discharge is generated between the scan electrode S and the address electrode A, and the priming effect causes the sustain discharge between the two display electrodes X and Y formed on the outer wall surface of the arc tube.
- Discharges With this driving method, all operations from address discharge to sustain discharge can be performed by opposed discharge.
- sustain discharge is performed with the electrodes formed on the outer wall surface of the arc tube, the discharge start voltage is low because of counter discharge, and discharge is generated near the phosphor layer. Excitation efficiency is increased, and improvement in luminous efficiency can be expected.
- the surface discharge type The light-shielding ratio is reduced as compared with the arc tube array type display device, and the luminous efficiency can be expected to increase due to the reduced light-shielding ratio.
- one frame When displaying a screen, one frame is composed of a plurality of subfields with different luminances, and each subfield has a reset period for initializing the charge of all the light emitting regions and an address for selecting the light emitting region to be made to emit light. A period and a sustain period in which the selected light emitting region emits light.
- a voltage pulse is applied to all the electrodes to generate a discharge in all the light emitting regions.
- a scan pulse is sequentially applied to the scan electrode S, and during that time, an address pulse is applied to the desired address electrode A to apply an address pulse between the scan electrode S and the address electrode A.
- a sustain pulse is alternately applied between the display electrodes X and Y opposed to each other with the arc tube interposed therebetween to generate a re-sustain discharge in the light emitting region where the wall charges are accumulated.
- the light emission in the light emitting region is performed by exciting the phosphor with ultraviolet rays generated by the sustain discharge to generate visible light of a desired color from the phosphor.
- FIG. 13 is an explanatory diagram showing a comparative example of the driving method.
- This figure shows the driving waveforms of the surface discharge type arc tube array type display device shown in FIGS. 17 and 18.
- the driving waveform shown in the figure shows a period of one subfield.
- the driving method of this comparative example differs from the driving method of the present invention in that a reset discharge is generated between the display electrodes X and Y during the reset period, and between the address electrode A and the display electrode Y during the address period.
- an address discharge is generated, and a sustain discharge is generated between the display electrodes X and Y during the sustain period.
- FIG. 14 is an explanatory diagram showing an example of a basic driving waveform of the driving method of the present invention.
- this driving method is a driving method for a four-electrode-structured arc tube display device, it is necessary to devise a device for that. Details are described below.
- the drive waveform is roughly divided into three steps: a reset period, an address period, and a sustain period.
- the reset period is further composed of a write period and a charge compensation period
- the sustain period is It also consists of a sustain pre-processing period and a sustain loop.
- the voltage applied in each period will be described.
- the purpose is to generate a discharge in all the light emitting regions regardless of the state of the residual charge in the sustain period of the previous subfield.
- a positive write pulse is applied to the scan electrode S. Also, it is necessary to accumulate positive and negative charges on the two display electrodes X and Y in the next address period, respectively. Therefore, a positive write pulse is applied to any one of the display electrodes.
- the applied voltage value is set so as to satisfy the following conditions.
- V sw is a voltage applied to the scan electrode S
- V fs ⁇ a is a discharge start voltage between the scan and address electrodes.
- V xw is the voltage applied to the display electrode X
- V yw is the voltage applied to the display electrode Y
- the voltage V sw applied to the scan electrode S and the voltage V yw applied to the display electrode Y during the writing period are obtuse waves, and are voltages that rise linearly.
- the sum of the absolute value of the voltage Vsw applied to the scan electrode S and the voltage Vyw applied to the display electrode X and the voltage Vyw applied to the display electrode Y IV xw I + IV yw I is the value of each static firing voltage 1. Desirably about 5 to 3 times.
- This charge compensation period is further subdivided into charge compensation for the display electrodes that generate a discharge between the display electrodes X and Y, and between the address and the scan electrodes that generate a discharge between the end electrode A and the scan electrode S. Performed separately for charge compensation.
- the applied voltage value is set so as to satisfy the following conditions.
- V aX is a voltage applied to the display electrode X
- V ay is a voltage applied to the display electrode Y.
- the voltage may be the same as the voltage Vsw or the voltage Vs during the sustain discharge.
- an address discharge is generated between the end electrode A and the scan electrode S, and the discharge is used as a trigger to form an amount of charge capable of generating a sustain discharge between the display electrodes X and Y in the light emitting region.
- the sustain period is divided into a sustain pre-processing period and a sustain loop that repeats discharge.
- the wall charges formed by the address discharge are unstable, so the charges are shaped so that a stable sustain discharge can be performed. Therefore, in the first pulse, the voltage V Xd is added in addition to the voltage V s to ensure that the discharge is generated. It is desirable to apply several voltage pulses having a pulse width wider than the pulse width in the sustain loop before the sustain loop is started.
- FIG. 15 is an explanatory diagram showing another example of a driving waveform of the driving method of the present invention. .
- This drive waveform is based on the premise that no write discharge is generated in the display electrodes X and Y during the reset period, and that the residual charges from the previous subfield emission are used. Therefore, it is possible to use it alone, but when one frame is composed of multiple subfields and displayed, the drive waveform in Fig. 14 is applied to the first subfield in one frame, Second and subsequent sub fees It is preferable to apply this drive waveform in the field.
- a write discharge is generated only between the scan electrode S and the address electrode A during the write period.
- a pulse having the same polarity as the write pulse is applied to the display electrodes X and Y so that erroneous discharge does not occur between the scan electrode S and the display electrode X (or Y).
- the operation is the same as the drive waveform in FIG.
- FIG. 16 is an explanatory diagram showing an example of the arrangement of the drive circuits.
- the scan driver SD for the scan electrode S is placed beside the arc tube array type display device 10
- the address driver AD for the address electrode A is placed below
- the sustain drivers for the display electrodes X and Y are placed.
- TDs are placed on top of each other. Since the address electrode A, the scan electrode S, and the display electrodes X and Y are completely independent, a dedicated substrate can be manufactured for each, and mutual countermeasures such as noise and heat countermeasures are made more smooth. Become.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/015365 WO2005055267A1 (ja) | 2003-12-01 | 2003-12-01 | 発光管アレイ型表示装置およびその駆動方法 |
JP2005511259A JP4198155B2 (ja) | 2003-12-01 | 2003-12-01 | 発光管アレイ型表示装置およびその駆動方法 |
CNA2003801105513A CN1860577A (zh) | 2003-12-01 | 2003-12-01 | 电弧管阵列型显示装置及其驱动方法 |
AU2003284516A AU2003284516A1 (en) | 2003-12-01 | 2003-12-01 | Light emitting tube array type display unit and driving method therefor |
TW092133882A TWI260570B (en) | 2003-12-01 | 2003-12-02 | Light emitting tube array display device and driving method thereof |
US11/386,693 US7315121B2 (en) | 2003-12-01 | 2006-03-23 | Arc tube array-type display device and driving method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2003/015365 WO2005055267A1 (ja) | 2003-12-01 | 2003-12-01 | 発光管アレイ型表示装置およびその駆動方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/386,693 Continuation US7315121B2 (en) | 2003-12-01 | 2006-03-23 | Arc tube array-type display device and driving method thereof |
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WO2005055267A1 true WO2005055267A1 (ja) | 2005-06-16 |
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PCT/JP2003/015365 WO2005055267A1 (ja) | 2003-12-01 | 2003-12-01 | 発光管アレイ型表示装置およびその駆動方法 |
Country Status (6)
Country | Link |
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US (1) | US7315121B2 (ja) |
JP (1) | JP4198155B2 (ja) |
CN (1) | CN1860577A (ja) |
AU (1) | AU2003284516A1 (ja) |
TW (1) | TWI260570B (ja) |
WO (1) | WO2005055267A1 (ja) |
Cited By (1)
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WO2014142140A1 (ja) * | 2013-03-13 | 2014-09-18 | 凸版印刷株式会社 | 発光管アレイ |
Families Citing this family (4)
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WO2006098025A1 (ja) * | 2005-03-17 | 2006-09-21 | Shinoda Plasma Co., Ltd. | 複数のガス放電管からなる表示装置、および表示装置の製造方法 |
BRPI0604090A (pt) * | 2006-09-21 | 2008-05-13 | Alaide Pellegrini Mammana | lámpada fluorescente com eletrodos externos transparentes (teefl) |
KR20080092749A (ko) * | 2007-04-13 | 2008-10-16 | 엘지전자 주식회사 | 플라즈마 디스플레이 장치 |
KR20120076388A (ko) * | 2010-02-08 | 2012-07-09 | 파나소닉 주식회사 | 플라즈마 디스플레이 패널 |
Citations (5)
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JPH0990899A (ja) * | 1995-09-22 | 1997-04-04 | Hitachi Ltd | 4電極プラズマディスプレイパネルの駆動方式 |
JP2000331615A (ja) * | 1999-05-20 | 2000-11-30 | Fujitsu Ltd | プラズマディスプレイパネル及びその駆動方法 |
US20030025451A1 (en) * | 2001-07-31 | 2003-02-06 | Fujitsu Limited | Gas discharge tube and method for forming electron emission layer in gas discharge tube |
US20030052592A1 (en) * | 2001-09-17 | 2003-03-20 | Fujitsu Limited | Display device |
JP2003316313A (ja) * | 2002-04-22 | 2003-11-07 | Fujitsu Hitachi Plasma Display Ltd | プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 |
Family Cites Families (3)
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JP2003045337A (ja) * | 2001-07-31 | 2003-02-14 | Fujitsu Ltd | 表示管および表示装置 |
JP3989209B2 (ja) | 2001-09-12 | 2007-10-10 | 篠田プラズマ株式会社 | ガス放電管及びそれを用いた表示装置 |
JP4909475B2 (ja) | 2001-09-13 | 2012-04-04 | 篠田プラズマ株式会社 | 表示装置 |
-
2003
- 2003-12-01 WO PCT/JP2003/015365 patent/WO2005055267A1/ja active Application Filing
- 2003-12-01 AU AU2003284516A patent/AU2003284516A1/en not_active Abandoned
- 2003-12-01 CN CNA2003801105513A patent/CN1860577A/zh active Pending
- 2003-12-01 JP JP2005511259A patent/JP4198155B2/ja not_active Expired - Fee Related
- 2003-12-02 TW TW092133882A patent/TWI260570B/zh not_active IP Right Cessation
-
2006
- 2006-03-23 US US11/386,693 patent/US7315121B2/en not_active Expired - Fee Related
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JPH0990899A (ja) * | 1995-09-22 | 1997-04-04 | Hitachi Ltd | 4電極プラズマディスプレイパネルの駆動方式 |
JP2000331615A (ja) * | 1999-05-20 | 2000-11-30 | Fujitsu Ltd | プラズマディスプレイパネル及びその駆動方法 |
US20030025451A1 (en) * | 2001-07-31 | 2003-02-06 | Fujitsu Limited | Gas discharge tube and method for forming electron emission layer in gas discharge tube |
US20030052592A1 (en) * | 2001-09-17 | 2003-03-20 | Fujitsu Limited | Display device |
JP2003316313A (ja) * | 2002-04-22 | 2003-11-07 | Fujitsu Hitachi Plasma Display Ltd | プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 |
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WO2014142140A1 (ja) * | 2013-03-13 | 2014-09-18 | 凸版印刷株式会社 | 発光管アレイ |
Also Published As
Publication number | Publication date |
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CN1860577A (zh) | 2006-11-08 |
TWI260570B (en) | 2006-08-21 |
TW200519816A (en) | 2005-06-16 |
AU2003284516A1 (en) | 2005-06-24 |
US20060170327A1 (en) | 2006-08-03 |
JPWO2005055267A1 (ja) | 2007-06-28 |
JP4198155B2 (ja) | 2008-12-17 |
US7315121B2 (en) | 2008-01-01 |
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