WO2000005740A1 - Tube a decharge pour afficheur et procede de commande d'un tel tube - Google Patents

Tube a decharge pour afficheur et procede de commande d'un tel tube Download PDF

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Publication number
WO2000005740A1
WO2000005740A1 PCT/JP1998/003248 JP9803248W WO0005740A1 WO 2000005740 A1 WO2000005740 A1 WO 2000005740A1 JP 9803248 W JP9803248 W JP 9803248W WO 0005740 A1 WO0005740 A1 WO 0005740A1
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WO
WIPO (PCT)
Prior art keywords
electrode
display
address
discharge
electrodes
Prior art date
Application number
PCT/JP1998/003248
Other languages
English (en)
Japanese (ja)
Inventor
Hideo Tanabe
Yuichi Kijima
Akira Shingai
Hiroshi Kawasaki
Akio Yamaguchi
Original Assignee
Hitachi, Ltd.
Hitachi Device Engineering Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi, Ltd., Hitachi Device Engineering Co., Ltd. filed Critical Hitachi, Ltd.
Priority to PCT/JP1998/003248 priority Critical patent/WO2000005740A1/fr
Publication of WO2000005740A1 publication Critical patent/WO2000005740A1/fr

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Classifications

    • 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
    • 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
    • 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
    • H01J11/12—AC-PDPs with at least one main electrode being out of contact with the plasma with main electrodes provided on both sides of the discharge space
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
    • H01J2211/20—Constructional details
    • H01J2211/22—Electrodes
    • H01J2211/32—Disposition of the electrodes
    • H01J2211/323—Mutual disposition of electrodes

Definitions

  • the present invention relates to a display discharge tube, and more particularly to a display discharge tube for selecting pixels by an address operation using plasma discharge and a driving method thereof.
  • FIG. 23 is a schematic perspective view of a conventional AC PDP disclosed in Japanese Patent Publication No. 3-76468
  • FIG. 24 is a schematic sectional view of the conventional AC PDP.
  • 1 is a transparent front glass substrate as a first substrate
  • 2 is a rear glass substrate as a second substrate
  • 3 is a partition
  • 5 is a display electrode (memory electrode).
  • 5a is a mother electrode
  • 5b is a transparent electrode
  • 11 is a first address electrode
  • 11a is a mother electrode
  • 11B is a transparent electrode
  • 7 is a second address electrode
  • 8a is a transparent dielectric layer
  • 9 is a protective film (Mg0)
  • 10 is a phosphor of RGB three primary colors.
  • the second substrate is shown rotated by 90 ° with respect to the first substrate for easy understanding of the structure.
  • a plurality of parallel second address electrodes 7 are formed on the rear glass substrate 2 by using a thick film technique such as a screen printing method or a thin film technique such as vapor deposition or etching. Further, a stripe-shaped partition wall 3 is formed by a screen printing method, a sand blast method, or the like so as to surround the second address electrode 7 in parallel with the second address electrode 7 on the rear glass substrate 2.
  • the phosphors 10 of the three primary colors of RGB are separately applied to the inside of the stripe-shaped partition walls 3 by a screen printing method, a sand plast method, or the like for each color.
  • a transparent front glass substrate 1 forming a tube in cooperation with the above-mentioned rear glass substrate 2 a plurality of parallel electrodes are formed so as to be orthogonal to the plurality of second address electrodes 7 formed on the rear glass substrate 2.
  • the first address electrode 11 and the display electrode 5 are formed by adhesion.
  • a transparent dielectric layer 8a is formed on the first address electrode 11 and the display electrode 5 by printing or the like, and a protective film (MgO film) 9 is deposited thereon.
  • a discharge gas is sealed in the inside of a tube composed of the front glass substrate 1, the rear glass substrate 2, and the like.
  • an address discharge is performed between the second address electrode 7 and the first address electrode 11, and then a display discharge is performed between the first address electrode 11 and the display electrode 5.
  • the phosphor 10 is excited by ultraviolet rays generated by the discharge plasma to emit visible light, and this light is displayed on the image through the front glass substrate 1.
  • the control of the presence / absence of discharge between the adjacent first address electrode and the display electrode is performed by controlling the distance between the first address electrode and the display electrode of the adjacent display cell. Perform by difference. For this reason, there is a problem that it is difficult to increase the definition and brightness of the PDP while ensuring the accuracy of the electrode dimensions. In general, high brightness and high efficiency can be achieved by increasing the distance between display electrodes. However, increasing the distance between the electrodes increases the discharge voltage. There is also a problem that becomes difficult.
  • FIG. 25 is a sectional view showing a configuration of a hybrid PDP disclosed in Japanese Patent Publication No. 3-76468.
  • a plurality of address electrodes 22 and 23 orthogonal to each other are provided on the rear glass substrate 2 side, and a transparent full-surface electrode 17 provided on the front glass substrate 1 side and a plurality of A semi-AC type memory part (semi-AC type memory part) composed of a perforated metal plate 20 having holes is provided.
  • an insulating substrate 24 is disposed in each gap between the plurality of address electrodes 22, and the transparent entire surface electrode 17 is covered with a transparent insulating layer 18.
  • Partition walls 19 and 21 are provided between the perforated metal plate 20 and the transparent insulating layer 18 and between the perforated metal plate 20 and the insulating substrate 24, respectively. It is enclosed in a tube composed of a glass substrate 2, a front glass substrate 1, and the like.
  • a tube composed of a glass substrate 2, a front glass substrate 1, and the like.
  • electrons generated by the discharge between the address electrodes 22 and 23 are drawn out to the semi-AC type memory section side by the voltage applied to the perforated metal plate 20 and covered with the transparent insulating layer 18. AC type discharge is maintained between the transparent entire surface electrode 17 and the perforated metal plate 20.
  • the conventional hybrid PDP shown in Fig. 25 has a complicated structure, which makes mass production difficult, and it is very difficult to optimize the diameter of the hole for connecting the discharge space on the address side and memory side. There is a point.
  • An object of the present invention is to provide a display discharge tube capable of solving the above-mentioned problems of the conventional PDP and enabling high-brightness, high-definition image display with a simple configuration, and a method of driving the display discharge tube. It is in.
  • the outline of the configuration of the present invention for achieving the above object is as follows.
  • the display discharge tube of the present invention includes, for each pixel (display cell), two pairs of electrodes, that is, a display electrode pair covered with a dielectric layer and a pad electrode pair, that is, four electrodes. It has a four-electrode structure in which at least one address electrode is covered with a dielectric layer. This makes it possible to increase the distance between the electrodes of the display electrode pair or to increase the electrode area, so that an image display with high efficiency and high luminance can be realized.
  • the display discharge tube of the present invention includes the display electrode pair and the address electrode pair independently of each other, the main discharge for image display is performed through a drive circuit connected to each of the display electrode pairs. It can be carried out. Therefore, even when the main discharge voltage rises due to the distance between the electrodes of the display electrode pair increasing, the load applied to the individual drive circuits can be reduced.
  • the driving method (driving waveform) specific to the four-electrode structure display cell of the present invention can realize high brightness, high contrast, and image display.
  • the configuration of the present invention is as follows.
  • a display discharge tube includes a first substrate (front plate) and a second substrate (back plate) facing each other, and a plurality of discharge tubes substantially parallel to each other on the first substrate surface.
  • a plurality of display electrodes, the display electrodes being covered with a dielectric, extending on the second substrate surface in a direction intersecting the display electrodes, and being substantially parallel to each other.
  • At least one of the first address electrode and the second address electrode is covered with a dielectric layer, and a discharge gas is sealed between the first substrate and the second substrate;
  • the display electrode pair for performing the main display discharge in (1) has substantially the same electrode width.
  • the power that becomes invalid in the display main discharge in (1) and (2) can be recovered to an external electric circuit through the electrode used in the main discharge.
  • the display discharge tube according to (1) or (2) further comprising: a display electrode pair that is parallelly arranged at a predetermined interval on the first substrate surface and covered with a dielectric layer. And a first address electrode covered with a dielectric layer.
  • the display discharge tube of the present invention according to (5) further comprising: a second address electrode on the second substrate; and a dielectric layer covering the second address electrode.
  • a second address electrode is provided on the second substrate, and the second address electrode is arranged so as to be exposed to a display discharge region, A phosphor was formed thereon.
  • the first address electrode extends between the electrodes of the display electrode pair.
  • the first address electrode is arranged close to one of the display electrode pairs.
  • the shape of the partition wall formed on the display electrode is substantially a lattice.
  • the partition formed on the display electrode has a lattice shape, and the partition wall is formed on the second substrate along the second address electrode.
  • the display has a stripe-shaped partition wall extending, and one electrode of the display electrode pair is common to two adjacent display cells.
  • the distance D (nnn) from the end facing the display electrode, and the pressure P (Torr) of the sealed discharge gas at 25 ° C.
  • the display electrode in (19), includes a transparent electrode, and a mother electrode that is a conductor having a different electrical resistance from the transparent electrode.
  • the mother electrode of the display electrode is formed by partitioning a partition formed on the display electrode in a portion parallel to an extending direction of the display electrode. Alternatively, the lattice-shaped partition formed on the second substrate is overlapped and arranged on a portion parallel to the extending direction of the display electrode.
  • the width (Ml) of an address electrode covered with the dielectric layer formed on the first substrate is 0.03: 1 to 0.4: 1.
  • the address electrode covered with the dielectric layer comprises a transparent electrode and a mother electrode which is a conductor having a different electrical resistance from the transparent electrode.
  • a width (nun) of a mother electrode constituting the address electrode and a display cell in a direction intersecting with a direction in which the display electrode pair extends are provided.
  • the ratio with the array pitch (band) is 0.03: 1 to 0.1: 1.
  • a display discharge tube includes a first substrate (front plate) and a second substrate (back plate) facing each other, and a plurality of substrates substantially parallel to each other on the first substrate surface.
  • a display electrode, the display electrode being covered with a dielectric, a plurality of first electrodes extending in a direction intersecting the display electrode on the second substrate surface, and being substantially parallel to each other.
  • At least one of the first address electrode or the second address electrode is covered with a dielectric layer, A discharge gas is sealed between the first substrate and the second substrate, and a display electrode pair for performing a main discharge for display in one display cell, a first address electrode for performing an address discharge, and a third electrode.
  • It has four electrodes consisting of two pairs of address electrodes and an address electrode pair consisting of address electrodes, and applies a signal for performing a main discharge for display between the electrodes of the display electrode pair. Drive.
  • the address electrode is driven by applying a trigger signal.
  • the wall charges are accumulated on the address electrodes, and the address electrodes are driven by applying a trigger signal having a polarity opposite to that of the wall charges.
  • the magnitude of the signal applied between the address electrodes at the time of the address discharge is a signal of a magnitude such that no wall charges are accumulated after the address discharge, and an electric field is applied between the pair of display electrodes during the address discharge or after the address discharge. Then, discharge is caused between the electrodes of the display electrode pair, or discharge is caused between the electrodes of the display electrode pair using the address discharge as a trigger, so that the wall charges are accumulated and driven.
  • the magnitude of the signal applied between the address electrodes during the address discharge is a magnitude signal at which no wall charge is accumulated after the address discharge, and the electrodes or electrodes of the address electrode and the display electrode after the address discharge.
  • An electric field is applied between the pair to cause discharge between the address electrode and the display electrode or the electrode pair, or discharge between the address electrode and the display electrode or the electrode pair by triggering the address discharge. It drives by accumulating wall charges.
  • the discharge between the address electrode pairs may be triggered, and the discharge between the display electrode pairs may be performed. Alternatively, it is driven by discharging between the address electrode and the display electrode or the display electrode pair.
  • the distance between the discharge electrodes can be increased, the luminous efficiency can be improved, the luminance can be greatly increased, the contrast can be improved, and a high-definition, high-quality image display can be obtained. be able to.
  • the load on the drive circuit can be reduced even if the discharge voltage of the main discharge increases, and the reactive power can be easily collected. I can do it.
  • FIG. 1 is an exploded perspective view showing a schematic structure of a display discharge tube according to Embodiment 1 of the present invention.
  • FIG. 2 is a sectional view of the display discharge tube shown in FIG.
  • FIG. 3 is an exploded perspective view illustrating a schematic structure of a display discharge tube according to a modification of the first embodiment of the present invention.
  • FIG. 4 is a sectional view showing a schematic structure of the display discharge tube shown in FIG.
  • FIG. 5 is a view showing a manufacturing process of a display discharge tube according to the first embodiment of the present invention and a modification of the first embodiment.
  • FIG. 6 is an exploded perspective view showing a schematic structure of a display discharge tube according to Embodiment 2 of the present invention.
  • FIG. 7 is a sectional view of a schematic structure of the display discharge tube shown in FIG.
  • FIG. 8 is an exploded perspective view showing a schematic structure of a display discharge tube according to a modification of the second embodiment of the present invention.
  • FIG. 9 is a sectional view of a schematic structure of the display discharge tube shown in FIG.
  • FIG. 10 is a view showing a manufacturing process of a display discharge tube according to the second embodiment of the present invention and a modification of the second embodiment.
  • FIG. 11 is a schematic sectional view of a front glass substrate of a display discharge tube according to Embodiment 3 of the present invention.
  • FIG. 12 is a schematic sectional view of a front glass substrate of a display discharge tube according to Embodiment 4 of the present invention.
  • FIG. 13 is a sectional view showing a schematic structure of a display discharge tube according to a modified example of the first to fourth embodiments of the present invention.
  • FIG. 14 is a schematic sectional view of a front glass substrate of a display discharge tube according to Embodiment 5 of the present invention.
  • FIG. 15 is a schematic sectional view of a display discharge tube according to Embodiment 6 of the present invention.
  • FIG. 16 is a driving waveform diagram of a discharge tube for display according to Embodiment 7 of the present invention.
  • FIG. 17 is a driving waveform diagram of a discharge tube for display according to Embodiment 8 of the present invention.
  • FIG. 18 is a driving waveform diagram of a discharge tube for display according to Embodiment 9 of the present invention.
  • FIG. 19 is a driving waveform diagram of a discharge tube for display according to Embodiment 9 of the present invention.
  • FIG. 20 is a driving waveform diagram of a discharge tube for display according to Embodiment 10 of the present invention.
  • FIG. 21 is a driving waveform diagram of a discharge tube for display according to Embodiment 11 of the present invention.
  • FIG. 22 is a driving waveform diagram of a discharge tube for display according to Embodiment 12 of the present invention.
  • FIG. 23 is a schematic perspective view of a conventional AC PDP.
  • FIG. 24 is a schematic sectional view of an AC type PDP according to the prior art.
  • FIG. 25 is a cross-sectional view of a conventional hybrid PDP.
  • FIG. 1 is an exploded perspective view illustrating a schematic structure of a display discharge tube according to the present embodiment
  • FIG. 2 is a cross-sectional view illustrating a schematic structure of the display discharge tube according to the present embodiment. It is.
  • the second substrate is 90 relative to the first substrate to facilitate understanding of the structure. It is rotated and displayed.
  • 1 is a transparent front glass substrate as a first substrate
  • 2 is a rear glass substrate as a second substrate
  • 3 and 4 are partition walls
  • 5 is a display electrode
  • 5a is a display
  • 5b is the transparent electrode part of the display electrode
  • 5M1 and 5M2 are the display electrode pair
  • 6 is the first address electrode
  • 6a is the mother electrode of the first address electrode
  • 6b is the first address electrode.
  • a transparent electrode portion 7 is a second address electrode
  • 8a is a transparent dielectric layer
  • 9 is a protective film (Mg0)
  • 10 is a phosphor of three primary colors of RGB.
  • the periphery of the front glass substrate 1 and the rear glass substrate 2 is sealed with a frit glass, and the following structure is housed in a sealed tube, and the tube is evacuated to helium.
  • a discharge gas such as a mixed gas of (He), neon (Ne), argon (Ar) and xenon (Xe) is sealed.
  • the structure housed in the tube is formed as follows.
  • the second address electrode 7 is formed on the rear glass substrate 2 by a thin film process or a thick film process such as printing.
  • grid-like partition walls 3 are formed by screen printing, sandblasting, or the like.
  • the lattice-shaped barrier ribs 3 are arranged such that the barrier ribs in one direction are parallel to the second address electrode 7 and are located in the gap between the second address electrodes 7, and the barrier ribs in another direction intersecting with the barrier ribs 3 in the front glass substrate 1.
  • the upper display electrode pairs 5M1 and 5M2 are formed so as to be disposed substantially at the centers thereof.
  • the respective phosphors 10 of the RGB primary colors are formed on the second address electrode 7 or on the inner wall surface of the grid-like partition 3 by printing or the like.
  • FIG. 3 is an exploded perspective view illustrating a schematic structure of a modification of the first embodiment of the display discharge tube according to the present invention.
  • FIG. 4 is a cross-sectional view for explaining the schematic structure of the display discharge tube shown in FIG. 3, and in order to facilitate understanding of the structure, the second substrate is rotated by 90 ° with respect to the first substrate. Is displayed.
  • Fig. 3 and Fig. 4 After the white dielectric layer 8b is formed on the electrode 7 by printing or the like, the grid-like partition walls 3 and the phosphors 10 may be sequentially formed.
  • Other configurations are the same as those of the first embodiment shown in FIGS.
  • display electrodes 5 composed of electrode pairs 5M1 and 5M2 are formed by a thin film process or a thick film process such as printing.
  • a first address electrode 6 is formed between the electrode pair 5M1 and 5M2 of the display electrode 5 by a thin film process or a thick film process such as printing.
  • a transparent dielectric layer 8a On the electrode pair 5M1, 5M2 of the display electrode 5 and the first address electrode 6, a transparent dielectric layer 8a, a grid-like partition 4 and a protective film 9 are formed.
  • the transparent dielectric layer 8a is formed by printing an insulator made of transparent glass or the like
  • the grid-like partition 4 is formed by printing an insulator made of black glass or the like.
  • the protective film 9 is an oxide thin film of MgO or the like having a high secondary electron emissivity, and is formed by evaporation or the like.
  • One display cell (hereinafter simply abbreviated as a cell) formed by a discharge area defined by the lattice-shaped barrier ribs 4 on the front glass substrate 1 side and the lattice-shaped barrier ribs 3 on the rear glass substrate 2 side is included.
  • the two electrode pairs 5M1, 5M2 of the display electrode 5, the first address electrode 6, and the second address electrode 7 are arranged.
  • the electrode for display can share the electrode 5M1 and the electrode 5M2 forming the electrode pair in the discharge region of the adjacent cell.
  • a discharge space discharge area
  • a grid-shaped partition wall 4 can be separated by forming a grid-shaped partition wall 4 on the approximate center of each of 5M1 and 5M2 so that their two sides overlap, and the display electrode is shared by adjacent cells. Even when used, a clear image without crosstalk can be reproduced.
  • Front glass substrate 1 and rear glass substrate 2 were made of soda glass with a thickness of 2.0.
  • the display cell pitch is 0.33 mm in width and 1,0 mm in height.
  • the thickness of the glass substrate is basically vacuum strength and is not particularly limited as long as there is no problem in handling. Further, as the material of the glass, it is preferable to use soda glass as long as a glass having a high strain point can be used.
  • transparent electrodes 5b and 6b as electrode pairs 5MK 5M2 and first address electrodes 6 of the display electrode 5 are formed on the front glass substrate 1 with a width of 0.60 band and 0.15 band, for example, using an IT0 film. .
  • Cr—Cu—Cr multilayer films each having a width of 0.06 mm are formed as mother electrodes 5a and 6a, for example, at the center on the transparent electrodes 5b and 6b.
  • the electrode width of the electrode pair 5M1 and 5M2 of the display electrode 5 is approximately 0.05 to 0.8 mm when the discharge cell (discharge area) pitch is 1.0 mm, and the electrode width of the transparent electrode constituting the electrode pair 5MK 5M2 The width ranges from 0.1 to 0.8. If the width of the electrode pair 5M1 and 5M2 of the display electrode is not less than 0.8, the electrode width of the first address electrode 6 formed on the same substrate cannot be sufficiently secured, and it takes time for address discharge, which is practical. is not.
  • the electrode width of the transparent electrode 5b constituting the electrode pair 5M1 and 5M2 is less than 0.1, the electric resistance of the transparent electrode increases, and the mother electrode 5a is thickened so that the electric resistance of the display electrode pair 5MU5M2 does not decrease. Must not increase the definition of the displayed image.
  • the width of the mother electrode 5a is approximately 0.05 to 0.3 mm.
  • the width of the mother electrode 5a is 0.3 mm or more, the light transmittance of the discharge cell decreases and the luminance decreases. If the width of the mother electrode 5a is less than 0.05, the electric resistance of the display electrode 5 (transparent electrode) does not decrease, and it is difficult to drive.
  • a transparent electrode and a mother electrode are used for the first address electrode 6 as well as the electrode pairs 5M1 and 5M2 of the display electrode 5, the decrease in light transmittance and the increase in electric resistance are suppressed, and the electrode area is reduced. Can be bigger. JP9 / 032 8
  • the electrode width of the first address electrode 6 is approximately 0.03 to 0.4 mm. If the electrode width of the first address electrode 6 is not more than 0.03, the electrode area is small, so that the voltage for the address discharge becomes high and it takes a long time to generate a reliable discharge, which is not preferable. If the electrode width of the first address electrode 6 is 0.4 mm or more, the electrode width of the display electrode 5 becomes small, and it is difficult to increase the brightness, which is not preferable.
  • the electrode width of the mother electrode 5a is approximately 0.03 to 0.1 mm. If the electrode width of the mother electrode 5a is more than 0.1, the transmittance of the discharge cells is reduced, and the luminance is undesirably reduced. When the width of the mother electrode 5a is less than 0.03 dragon, the electric resistance of the first address electrode does not decrease and the driving becomes difficult.
  • a transparent electrode for each electrode For example, in a pattern consisting of only the mother electrode 5a without using a transparent electrode for the electrode pair 5M1 and 5H2 of the display electrode 5, if the electrode width is set to 0.2 to 0.6, the electrode interval becomes wide. Although the sustaining voltage increases, the luminous efficiency can be increased.
  • the material of the mother electrodes 5a and 6a only needs to have a small electric resistance, and there is no problem even if the material is a metal such as Ag, Ni, Al, or Au, or a multilayer film such as Cr-Au-Cr.
  • a transparent dielectric layer 8a made of transparent glass or the like is formed on the entire surface so as to cover the electrodes, and further formed on the transparent electrode 5b of the electrode pair 5MK5M2 constituting the display electrode 5.
  • a grid-shaped partition wall 4 is formed at a height of 0.01 mm so that two sides of the four sides overlap substantially on the mother electrode 5a thus formed.
  • This lattice-shaped partition 4 is made of black glass or the like.
  • the formation position of the grid-shaped partition 4 is formed on the transparent electrode 5b of the display electrode, there is no problem in the image display function, but the grid-shaped partition 4 is parallel to the extending direction of the display electrode 5. If the partition wall 4 is formed so as to overlap the mother electrode 5a, the transmittance can be increased, and the display image becomes bright.
  • an MgO film is formed as a protective film 9 to a thickness of 500 to 800 nm by a known method such as electron beam evaporation (EB evaporation).
  • EB evaporation electron beam evaporation
  • a second electrode 7 is printed with a 0.10 mm-wide metal such as Ag, Ni, Al, Au or a multilayer film of Cr_Cu—Cr, Cr-Au-Cr or the like. Formed by a photo process.
  • a white dielectric layer 8b having a thickness of 0.015 mm is formed of an insulating material such as white glass by printing or the like.
  • the electrode width of the second address electrode 7 is approximately 0.05 to 0.2 thigh when the cell pitch is 0.33 mra. If the electrode width is less than 0.05 mm, the discharge starting voltage will be high or the discharge will take time, making it difficult to ensure address discharge.
  • the white dielectric 8b has no significant difference in basic functions whether or not it is formed. However, the utilization of the reflected light of the phosphor 10 is improved by forming the white dielectric 8b, and the role of the protective film of the second address electrode 7 when the grid-like partition 3 is formed by the sand-plast method. There are advantages to
  • the one-way wall of the grid-like partition 3 is parallel to the second address electrode 7 and is located in the gap between the second address electrodes 7, and this and the wall in the other direction of the partition 3 are the front glass substrate.
  • a grid-like partition wall 3 is formed by printing, sand blasting, or the like so as to be located substantially at the center of each of the display electrode pairs 5M1 and 5M2 on the upper part 1.
  • Grid-shaped bulkhead 3 has a width of 0.06 and a height of 0.15 mm It is.
  • the width of the lattice-shaped partition wall 3 is approximately 0.020. Lmm, and the height is 0.050. 25, which is formed by printing or sand plasting.
  • the width of the grid-like partition walls 3 is 0.1 mm or more, the aperture ratio becomes low, and it becomes difficult to increase the brightness of the display image.
  • the width is 0.02 mni or less, a partition having a sufficient height cannot be formed.
  • the height of the grid-shaped partition walls 3 is less than 0.05, it is not possible to apply a sufficient amount of phosphor, and if the height of the grid-shaped partition walls 3 is 0.25 mm or more, the partition walls will not be coated. Formation becomes difficult.
  • the phosphor 10 is formed on the rear glass substrate 2 by applying a paste-like phosphor by printing or the like to correspond to each of the RGB colors.
  • the lattice-shaped partitions 3 formed on the front glass substrate 1 and the rear glass substrate, the rear glass substrate 2 thus formed, and the lattice-shaped partitions 4 formed on the front glass substrate 1 are overlapped with each other. Seal and exhaust with frit glass so that the exhaust pipe (not shown) is fixed. Next, gas is sealed and the chip is turned off.
  • the filling gas is a gas that can be ionized by electric discharge such as He-Xe Ne-Xe, and is filled at 25 ° C with a pressure of approximately 400 Torr.
  • the grid-like partition walls 4 are formed on the front glass substrate 1 in substantially the same grid shape as the grid-like partition walls 3 on the rear glass substrate 2 by changing the height and color.
  • the grid-like partition walls 4 on the front glass substrate 1 may or may not be formed. If the grid-shaped partition walls 4 are not formed, the transmittance is reduced if the portions of the grid-shaped partition walls 3 that are parallel to the extending direction of the display electrode 5 overlap the mother electrodes 5a of the display electrodes 5. This is convenient.
  • at least the uppermost layer is preferably black to improve contrast.
  • the height of the partition walls 4 on the front glass substrate 1 depends on the type and pressure of the discharge gas to be sealed, but is as high as the thickness of the negative glow formed during discharge. If there is, a stripe-shaped partition wall in a direction parallel to or perpendicular to the second address electrode 7 may be used.
  • the electrode pair 5M1 which constitutes the display electrode 5
  • the display electrode pair for performing main discharge for display and the address electrode pair for mainly performing address discharge are separated, so that the reactive power of the main discharge can be easily collected. Can be done. That is, the display electrode pairs 5M1 and 5M2 that perform the main discharge are commonly connected, and the reactive power recovery circuit can be connected to the common connection portion.
  • a drive circuit common to each cell can be used for each of the display electrode pairs 5M1 and 5M2, and the electrodes are separated to obtain high brightness and high efficiency. As a result, the rise in the discharge voltage of the main discharge has little effect on the drive circuit.
  • FIG. 6 is an exploded perspective view illustrating a schematic structure of a display discharge tube according to the present embodiment
  • FIG. 7 is a cross-sectional view illustrating a schematic structure of the display discharge tube shown in FIG.
  • the second substrate is shown rotated by 90 ° with respect to the first substrate for easy understanding of the structure.
  • a transparent glass substrate is used as the first substrate, and the front glass substrate 1 is used.
  • the second substrate for example, a transparent glass substrate is used, and this is referred to as a rear glass substrate 2.
  • the periphery of the front glass substrate 1 and the rear glass substrate 2 is sealed with a frit glass, and the following structure is housed in a sealed tube, and the tube is evacuated to helium.
  • a discharge gas such as a mixture of (He), neon (Ne), argon (Ar), and xenon (Xe) is sealed.
  • the structure housed in the tube is formed as follows.
  • the second address electrode 7 is formed on the rear glass substrate 2 by a thin film process or a thick film process such as printing.
  • stripe-shaped partition walls 3 are formed by screen printing, sandblasting, or the like.
  • the stripe-shaped partition walls 3 are arranged in parallel with the second address electrodes 7.
  • each of the phosphors 10 of the three primary colors of RGB is formed on the second address electrode 7 and on the inner wall surface of the stripe-shaped partition wall 3 by a method such as printing.
  • FIG. 8 is an exploded perspective view illustrating a schematic structure of a modification of the second embodiment of the display discharge tube according to the present invention.
  • FIG. 9 is a cross-sectional view for explaining the schematic structure of the display discharge tube shown in FIG. 8, in which the second substrate is rotated by 90 ° with respect to the first substrate to facilitate understanding of the structure. It is displayed.
  • the white dielectric layer 8b is formed on the second address electrode 7 by printing or the like, the stripe-shaped partition walls 3 and the phosphor 10 may be formed.
  • Other configurations are the same as in the second embodiment.
  • the display electrode 5 composed of the electrode pairs 5M1 and 5M2 is formed by a thin film process or a thick film process such as printing.
  • a first address electrode 6 is formed between the electrode pair 5M1 and 5M2 of the display electrode 5 by a thin film process or a thick film process such as printing.
  • a transparent dielectric layer 8a On the electrode pair 5M1, 5M2 of the display electrode 5 and the first address electrode 6, a transparent dielectric layer 8a, a grid-like partition 4 and a protective film 9 are formed.
  • a transparent dielectric layer 8a an insulator made of transparent glass or the like was formed by printing or the like, and for the grid-like partition 4, an insulator made of black glass or the like was formed by printing or the like.
  • the protective film 9 is an oxide thin film such as MgO having a high secondary electron emissivity, and is formed by a vapor deposition method or the like.
  • Two display electrodes 5 are included in one display cell formed by a discharge region defined by the grid-like partition walls 4 on the front glass substrate 1 side and the stripe-shaped partition walls 3 on the rear glass substrate 2 side. Electrode pairs 5M1, 5M2, first address electrode 6, and second address electrode 7 are arranged.
  • the electrode for display can share the electrode 5M1 and the electrode 5M2 forming the electrode pair in the discharge region of the adjacent cell.
  • a discharge space discharge area
  • a grid-like partition 4 can be separated by forming a grid-like partition 4 on the substantially center of each of 5M1 and 5M2 so that the two sides thereof overlap.
  • the separation of the discharge area does not require the formation of the grid-shaped partition walls 4, but the distance D (band) and electrode width W (mm) between the electrode pair 5M1 and 5M2 of the display electrode 5, the front glass substrate 1 and the back
  • the display discharge tube of this embodiment is manufactured as follows.
  • the second embodiment shown in FIGS. 8 and 9 and a modification of the second embodiment will be described with reference to FIG. 10 which is a flowchart illustrating the outline of the manufacturing process of the display discharge tube according to the present invention.
  • the second embodiment and a modification of the second embodiment are different from the first embodiment in that the shape of the partition walls formed on the rear glass substrate 2 in the first embodiment is changed from a lattice shape to a stripe shape.
  • Soda glass with a thickness of 2.0 mm was used for the front glass substrate 1 and the rear glass substrate 2.
  • the display cell pitch is 0.33mm in width and 1.0 in height.
  • the thickness of the glass substrate is not particularly limited as long as it has vacuum strength and there is no problem in handling during manufacture. Further, the material of the glass is preferable to soda glass as long as high strain point glass can be used.
  • transparent electrodes 5b and 6b as electrode pairs 5M1 and 5M2 of the display electrode 5 and a first address electrode 6 are formed with a pattern of, for example, an IT0 film to a width of 0.60 mm and 0.15 mm, respectively.
  • a Cr—Cu—Cr multilayer film having a width of 0.06 mm, for example is formed on the transparent electrodes 5b and 6b, for example, as the mother electrodes 5a and 6a, respectively.
  • the electrode width of the electrode pair 5M1 and 5M2 of the display electrode 5 is approximately 0.05 to 0.8 when the discharge cell (discharge area) pitch is 1. Omm, and the electrodes constituting the electrode pair 5M1 and 5M2 are transparent.
  • the width of the electrodes is between 0.1 and 0.8 mni. If the width of the electrode pair 5M1 and 5M2 of the display electrode is 0.8 ram or more, the electrode width of the first address electrode 6 formed on the same substrate cannot be sufficiently secured, and it takes time for address discharge. Absent. Further, when the electrode width of the transparent electrode 5b constituting the electrode pair 5M1 and 5M2 is 0.1 mm or less, a thick mother electrode is required to reduce the electric resistance of the transparent electrode, so that the definition of the displayed image cannot be increased.
  • the width of the mother electrode 5a is approximately 0.05 to 0.3 mm.
  • the width of the mother electrode 5a is 0.3 or more, the light transmittance of the discharge cell decreases and the luminance decreases. If the width of the mother electrode 5a is less than 0.05, the electric resistance of the display electrode 5 (transparent electrode) does not decrease, and it is difficult to drive.
  • a transparent electrode and a mother electrode are used for the first address electrode 6 in the same manner as the electrode pairs 5M1 and 5M2 of the display electrode 5, a decrease in light transmittance and an increase in electric resistance are suppressed to increase the electrode area. be able to.
  • the electrode width of the first address electrode is approximately 0.03 to 0.4 mm when the discharge cell pitch is 1. Omm. If the electrode width of the first address electrode 6 is less than 0.03 dragon, the electrode area is reduced, so that the voltage of the address discharge is increased and it takes a long time to generate a reliable discharge, which is not preferable. If the electrode width of the first address electrode 6 is not less than 0.4 thigh, the electrode width of the display electrode 5 becomes narrow, and it is not preferable to increase the brightness.
  • the electrode width of the mother electrode formed on the transparent electrode of the first address electrode is approximately 0.03 to 0.1 mm. If the electrode width of the mother electrode is more than 0.1, the transmittance of the discharge cell is lowered, and the luminance is undesirably reduced. When the width of the mother electrode is less than 0.03 mm, the driving becomes difficult because the electric resistance of the first address electrode does not decrease.
  • the electrode pairs 5M1, 5M2 and the first address electrode of the display electrode 5 are used. It is not necessary to use a transparent electrode.
  • a transparent electrode for example, in a pattern composed of only the mother electrode without using a transparent electrode for the electrode pair 5M1 and 5M2 of the display electrode 5, for example, if the electrode width is set to 0.2 to 0.6, it is formed. Although the electrode spacing is widened and the sustaining voltage is high, the luminous efficiency can be increased.
  • the material of the mother electrodes 5a and 6a only needs to have a small electric resistance. P / P98 / 03248
  • a transparent dielectric layer 8a made of transparent glass or the like was formed on the entire surface to cover the electrodes, and further formed on the transparent electrode 5b of the electrode pair 5111 constituting the display electrode 5 and 5M2.
  • a grid-like partition wall 4 is formed at a height of 0.03 mm on the outline of the mother electrode 5a so that two opposing sides of the four sides overlap.
  • This lattice-shaped partition 4 is made of black glass or the like.
  • the grid-like partition 4 is formed on the transparent electrode 5b of the display electrode, there is no problem in the image display function. It is preferable to form a partition wall portion of the grid-like partition wall 4 parallel to the extending direction of the display electrode 5 so as to overlap the mother electrode 5a, since a decrease in transmittance can be suppressed and a display image becomes bright. .
  • an MgO film is formed as a protective film 9 to a thickness of 500 to 800 nm by a known method such as electron beam evaporation (EB evaporation).
  • EB evaporation electron beam evaporation
  • a second address electrode ⁇ is formed of a metal such as Ag, Ni, Al, Au or a metal such as Cr—Cu—Cr or Cr—Au—Cr with an electrode width of 0.10.
  • the layer film is formed by a printing method and a photo process.
  • a white dielectric layer 8b having a thickness of 0.015 mm is formed on the second address electrode 7 by printing a thread color edge material such as white glass.
  • the electrode width of the second address electrode 7 is approximately 0.05 to 0.2 when the discharge cell pitch is 0.33. If the electrode width is less than 0.05, the discharge starting voltage will be high and the discharge will take time, making it difficult to perform a reliable address discharge.
  • the white dielectric 8b has no significant difference in basic functions whether or not it is formed.
  • the phosphor 10 There is an advantage that the utilization rate of the reflected light is improved, and that it also functions as a protective film for the second address electrode 7 when the stripe-shaped partition walls 3 are formed by the sand blast method.
  • the stripe-shaped barrier ribs 3 are formed by printing, sand plasting, or the like so as to be located in the gaps in parallel with the second electrode electrodes 7.
  • the phosphors 10 of each of the RGB colors are formed on the inner wall surface of the upper stripe electrode-like partition wall 3 by printing or the like on the second address electrode 7.
  • the width of the stripe-shaped partition wall 3 is 0.60 ⁇ , and the height is 0.15 mm.
  • the width of the stripe-shaped partition wall 3 is approximately 0.02 to 0.1 and the height is 0.05 to 0.25 mm, and is formed by printing or sandblasting. If the width of the stripe-shaped partition walls 3 is more than 0.1 plate, the aperture ratio becomes low, and it becomes difficult to increase the brightness.
  • the opening ratio of the strip-shaped partition wall 3 is better as the width is smaller, but a partition wall of sufficient height cannot be formed if the width is less than 0.02 dragon. If the height of the strip-shaped partition walls 3 is less than 0.05, it is not possible to apply a sufficient amount of phosphor, and if the height of the strip-shaped partition walls 3 is 0.25 mm or more. It becomes difficult to form partition walls.
  • the phosphor 10 is formed on the rear glass substrate 2 by applying a paste-like phosphor by printing or the like in accordance with each of the RGB colors.
  • the sealing gas is an ionizable gas such as He-Xe, Ne-Xe, etc., and sealed at 25 ° C with a pressure of about 400 Torr.
  • Crosstalk can be suppressed to the extent that it does not hinder the function of the spray.
  • the height of the partition wall 4 necessary for suppressing the crosstalk is related to the thickness of the negative glow. For example, when the filling gas is He-5% Xe and 400 Torr, slight crosstalk occurs when the partition wall height is 0.01 mm. Further, if the height of the partition wall 4 is more than 0.1 band, the viewing angle of the displayed image is narrowed, which is not preferable.
  • the basic functions of the electrode pairs 5M1 and 5M2 constituting the display electrode 5 are not limited even if they are bundled outside the discharge tube or inside the discharge tube (in the panel). There is no big difference. Even if only one of the electrode pairs of the display electrode 5, for example, only 5M1 is bundled into a plurality, or the electrodes 5M1 and 5M2 are bundled depending on the electric capacity, there is no significant difference in the basic function.
  • the display electrode pairs 5MU and 5M2 are shared by the adjacent discharge areas, a structure in which the distance between the display electrode pairs is large can be obtained, so that light emission with high efficiency and high luminance can be obtained. be able to.
  • FIG. 11 is a schematic cross-sectional view for explaining the configuration of the front glass substrate of the display discharge tube according to the present embodiment.
  • the electrode pairs 5M1 and 5M2 constituting the display electrode 5 is used as an electrode of two discharge spaces (discharge areas) by the partition wall 4, and the other electrode 5M1 of the electrode pair is a partition wall. 4 are formed at symmetrical positions with respect to 4, and serve as display electrodes in adjacent discharge regions. Other configurations are the same as those of the first or second embodiment.
  • FIG. 12 is a schematic cross-sectional view for explaining the configuration of the front glass substrate of the display discharge tube according to the present embodiment, and the same reference numerals as those in the drawings of the above embodiments correspond to the same parts.
  • the electrode pairs 5M1 and 5M2 of the display electrode 5 are formed at symmetrical positions with respect to the partition wall 4, respectively. That is, one electrode 5M1-1 of the electrode pair and the other electrode 5M2-2 are arranged so as to constitute a display electrode in one discharge region, and the electrode 5M1-1 and the electrode 5M2-2 are connected to each other.
  • the first address electrode 6 is disposed between the two. Other configurations are the same as those of the first and second embodiments. According to this embodiment, since there are a pair of address electrodes and a pair of display electrodes, the distance between the pair of display electrodes can be increased.
  • the electrodes 5MK5M1-1) and the electrodes 5M2-2 that perform the main discharge are formed.
  • Distance Dl (mm) and distance D2 (II) between other electrode 5M2-1 and pressure of filled gas at 25 ° C P (Torr) and vertical direction of front glass substrate 1 and rear glass substrate 2 The relationship of the length L (mm) of the discharge space may satisfy the following equation. That is,
  • crosstalk occurs when the value of 0 is less than 0.5, and is not realistic when the value of ⁇ is greater than 2.
  • the pressure ⁇ of the gas limits the thickness of the negative glow, and the length L of the discharge space limits the spread of the electric field to control the spread of the discharge.
  • the first end electrode 6 may be arranged close to one of the display electrode pairs, for example, 5M1.
  • light emission at the time of discharge between the first address electrode 6 and one of the display electrode pairs 5M1 is achieved. Brightness can be suppressed and discharge can be easily generated.
  • the first address electrode 6 is composed of the mother electrode 6a and the transparent electrode 6b
  • one 5M1 of the display electrode pair and the transparent electrode 6b are arranged close to each other, and the mother electrode 6a contacts the transparent electrode 6b.
  • the mother electrode 6a contacts the transparent electrode 6b.
  • FIG. 14 is a schematic sectional view of a display discharge tube front glass substrate according to the present embodiment.
  • the display electrodes 5M1 and 5M2 are formed so as to be located on both sides of the partition wall 4, respectively. Is different from the third embodiment.
  • two pairs of electrodes ie, a pair of address electrodes and a pair of display electrodes, are provided in the same manner as in Embodiments 1 to 4. The distance between the electrodes of the pair of electrodes can be increased.
  • FIG. 15 is a schematic sectional view illustrating the configuration of a display discharge tube according to the present embodiment.
  • FIG. 15 shows the second substrate rotated by 90 ° with respect to the first substrate for easy understanding of the structure.
  • the electrode pairs 5M1 and 5M2 forming the display electrode 5 are arranged in the same discharge space on the front glass substrate 1, and the first address electrode 6 and the second address electrode 7 are connected to the rear glass substrate. It is formed on two sides.
  • the first address electrode 6 is formed on the upper surface of the rear glass substrate 1, and the second address electrode 7 is formed thereon via the dielectric layer 8b.
  • the same effect can be obtained even when the arrangement of the first address electrode 6 and the second address electrode 7 is reversed.
  • the formation positions of the endless electrodes are different from those of the first to fifth embodiments, but since they have a pair of address electrodes and a pair of display electrodes, they can be used in a conventional AC-type display discharge tube. In comparison, the distance between the pair of display electrodes can be increased.
  • the display electrode pair for performing main discharge for display and the address electrode pair for mainly performing address discharge are provided separately. Therefore, the display electrode pairs 5M1 and 5M2, which perform the main discharge, can be connected in common to each cell.This suppresses the effect of the increase in the discharge voltage of the main discharge due to the separation of the electrodes on the drive circuit, and the main discharge. Reactive power can be easily recovered without complicating the circuit.
  • FIG. 16 is a drive waveform diagram for explaining a method of driving the display discharge tube according to the present embodiment.
  • first in order to make all the discharge cells on the screen of the display discharge tube uniform, that is, the electrodes 5M1 and 5M2 and the first address electrode 6 constituting the electrode pair of the display electrode 5 are used.
  • PwSK pulse This is performed by applying a PwSK pulse to the first address electrode 6. Since this pulse is intended to erase the wall charge, it is a narrow pulse. Generally, in a so-called AC-type PDP, wall charges are not generated if the pulse width is small during discharge, and wall charges are generated if the pulse width is wide.
  • PwsA the pulse width of PwSK is 1 beta s
  • voltage PwsA is + 140 V
  • P WSK - 140 V.
  • This reset discharge is for the purpose of erasing the electric charge on the electrode surface in the cell, and if a discharge occurs, it is between the display electrode pair, between the address electrode pair, the display electrode or the electrode pair and the address electrode or A reset discharge may be performed between the electrode pairs.
  • Performing a reset discharge between the first address electrode 6 and the display electrode, for example, 5M1 produces less light emission due to the reset discharge than a reset discharge between the pair of display electrodes, resulting in better display image contrast. Become.
  • the display electrode width of each of the electrodes 5M1 and 5M2 is 0.6 mm, and the width of the first address electrode 6 is 0.2 band, the display electrode Assuming that the brightness due to the discharge between the electrodes 5M1 and 5M2 of the electrode pair constituting 5 is 1, the brightness due to the discharge between the first address electrode 6 and the electrode 5M1 is about 0.5.
  • the reset discharge is performed between the first address electrode 6 and the display electrode 5M1
  • the reset discharge is performed between the first address electrode 6 and the display electrodes 5M1 and 5M2.
  • the first electrode electrode 6 and the display electrode 5M1 are arranged close to each other, so that the display electrode Reset between 5M1 and first address electrode 6 CT / JP98 / 03248
  • the waveform shown in FIG. 16 is applied to the display electrodes 5M1, 5M2 and the first address electrode 6 during the electric field 1 application period.
  • the display electrodes 5M1, 5M2 and the first address electrode 6 are on the first substrate, a positive voltage is applied to the first substrate side, the second address electrode is on the second substrate, and the second Since the substrate side remains at 0 V, an electric field is applied between the electrode group of the first substrate and the electrode group of the second substrate, and the negative space charge generated by the discharge generated during the reset period is reduced to the first space. Positive space charges are accumulated as wall charges in the electrode group of the second substrate in the electrode group of the second substrate.
  • V M2 is + 70V
  • V C + is + 80V.
  • the waveforms of the address period after the electric field 1 application period in FIG. 16 are displayed.
  • the first address electrodes 6 (6-1, 6-2,... 6-n) correspond to so-called scan electrodes
  • the second address electrodes 7 (7-n) correspond to so-called data electrodes.
  • Discharge occurs between the first and second address electrodes. That the potential difference become as the pulse P C of the negative polarity to the first Adoresu electrode 6, a positive pulse PA is applied to the second Adoresu electrode 7, the wall charges on the first Adoresu electrode 6 and the second address electrodes 7 To accumulate.
  • V M1 + is applied to the display electrode 5M1 and a negative voltage V M1 — is applied to 5M2.
  • V M1 + applied to the display electrode 5M1 is a voltage that does not discharge any of the other electrodes (the display electrode 5M2, the first address electrode 6 and the second address electrode 7), and is applied to the display electrode 5M2.
  • V M1 — is a voltage that does not discharge any of the other electrodes (display electrode 5M1, first end electrode 6 and second address electrode 7).
  • VM1 + is + 60V
  • V M1 one is - 60V
  • P C pulse width with P A is 4 s
  • the voltage is P C - 140 V
  • P A is + 40V .
  • the wall charges can be accumulated on the display electrodes.
  • the first discharge can be easily generated. Therefore, after the address period of FIG. 16, the waveform of the electric field 2 application period is applied to the display electrodes 5M1, 5M2 and the first address electrode 6.
  • V M1 + is +60 V
  • V M1 — is ⁇ 60 V
  • V C — is ⁇ 140 V.
  • the waveform of the sustain period is applied to the display electrodes 5MK 5M2 and the first address electrode 6.
  • a trigger signal is input to the first address electrode 6, but there is no problem in basic functions without inputting a single trigger signal. In that case, it is only necessary to use the wall charges on the first address electrode 6 to discharge the trigger once.
  • the range of voltage setting that can be driven can be increased.
  • the wall charge is erased by the last pulse of the sustain period. However, there is no problem even if a wide pulse is applied without erasing. In that case, the pulse to be applied is set so that the generated wall charges facilitate the next reset discharge.
  • the reset discharge between the sustain period and the address period does not have to be performed, so that the number of reset discharges can be reduced. And the contrast of the displayed image can be improved.
  • Pulse PTC is applied to PTM2 and first address electrode 6. Pulse PTC is the pulse width 1 s enough to the wall electric load is not accumulated, the pulse P TM1 P T M2 is the 4 s enough wall charges are accumulated.
  • the voltage of the PTC is +80 V
  • the voltage of ⁇ is _100 V
  • the voltage of ⁇ 2 is +140 V.
  • Pulse for performing triggers discharge after the main discharge of the sustain period is a PSM + and PSM-, pulse width 4 mu s, in the present embodiment, the voltage P SM + is + 40V P SM - is - 200V It is.
  • the pulse for erasing the wall charge on the display electrode PSSM-PSSM + has the same pulse and voltage as the pulse for continuing the main discharge, and has a pulse width of 1 s.
  • a pulse in both the positive and negative polarities is applied as the pulse in the sustain period.
  • the present invention is not limited to this. As long as the potential does not discharge to the address electrode pair, it is sufficient that a predetermined potential is applied between the display electrode pair 5MK and 5M2. Even if the applied pulse is a pulse of only positive polarity or a pulse of only negative polarity, there is no problem. Absent.
  • the reset period, the electric field 1 application period, the address period, the electric field 2 application period, the sustain period, and the cycle adjustment period are shown in FIG. 16, but at least the address discharge performed between the address electrode pair is performed. It suffices if there is an address period in which the display is performed and a sustain period in which the main discharge for display performed between the display electrode pairs is performed. In the sustain period, there are cases where a main discharge for performing display and a trigger discharge prior to the main discharge occur. (Example 8)
  • FIG. 17 is a drive waveform diagram for explaining a method of driving the display discharge tube according to the present embodiment.
  • first in order to make all the discharge cells on the screen of the display discharge tube uniform, that is, the electrodes 5M1 and 5M2 constituting the display electrode pair, the first address electrode 6, and the second address are used.
  • the first address electrode 6 and the second address are used.
  • a reset discharge is performed between the display electrode 5M1 and the first address electrode 6 to erase the wall charge on the electrode in the display cell.
  • the pulse P WSK to the electrode 5M1 during the reset period of FIG. 17 is performed by applying a pulse of PwsA the first Adoresu electrode 6. Since this pulse is intended to erase the wall charge, it is a narrow pulse.
  • the pulse width of PWSA ⁇ PWSK is 1 s
  • the voltage PwsA is + 40V
  • the P WSK - is 240V.
  • this reset discharge is to erase the electric charge on the electrode surface in the cell. good.
  • a reset discharge is performed between the first address electrode 6 and the display electrode, for example, 5M1
  • less light is emitted due to the reset discharge than when a reset discharge is performed between the pair of display electrodes, and the display image contrast is improved.
  • the waveforms of the address period shown in Fig. 19 are displayed. Display electrodes 5M1, 5M2, 1st address electrode 6 (6-1, 6-2, 6-n) , And the second address electrode 7 (7-n).
  • the first address electrodes 6 (6-1, 6-2, ⁇ 6-n) correspond to so-called scan electrodes, and the second address electrodes 7 (7-1n) correspond to so-called data electrodes.
  • a negative pulse Pc is applied to the first address electrode 6 and a positive pulse PA is applied to the second address electrode 7 with a potential difference, and wall charges are accumulated on the first address electrode 6 and the second address electrode 7. Let it.
  • the waveform of the sustain period is applied to the display electrodes 5M1, 5M2 and the first address electrode 6.
  • a trigger discharge is generated between the first address electrode 6 and the display electrode 5M1, and the discharge is transferred to another electrode 5M2.
  • the pulse ⁇ has a pulse width of 1 Hs at which wall charges cannot be generated, and the pulse width of the pulse P S has a pulse width of 4 s at which wall charges are accumulated.
  • the voltage of the P T is + 200V, the voltage of P S is + 240V.
  • the trigger discharge occurs first between the first address electrode 6 and the electrode 5M1, and then the discharge occurs between the electrode 5M1 and the electrode 5M2. Will migrate.
  • the pulse width of the pulse P S is wide, and in the cell where the discharge occurred, the wall charge is formed on the display electrodes 5M1 and 5M2 by the discharge, and the discharge continues as the wall charge of the next discharge.
  • a trigger signal is applied to the first address electrode 6, but the trigger discharge is performed using only the wall charge on the first address electrode without applying the trigger signal. There is no problem.
  • the range of voltage settings that can be driven can be increased. Also applied to the display electrode during the sustain period
  • the positive pulse has been described as a positive pulse, the present invention is not limited to this, and it is also possible to use a negative pulse or a bipolar pulse.
  • FIGS. 18 and 19 are drive waveform diagrams for explaining a method of driving the display discharge tube according to the present embodiment.
  • Pulses (PwWK, PWWA) are applied to the electrode 5M1, the electrode 5M2, and the first address electrode 6 as shown in FIGS. 18 and 19 during the reset period. Since this pulse is intended to generate wall charges, the pulse width is long enough to accumulate wall charges (4, and the voltage of P ffffA is
  • the voltage of PffffK is _240V.
  • a wall width is not generated when the pulse width is narrow at the time of discharge, and a wall charge is generated when the pulse width is wide.
  • the reset discharge for accumulating wall charges on the electrodes may be either the first address electrode 6 or one of the display electrodes 5M1 and 5M2 as shown in FIG. That is, it is only necessary that wall charges are generated on the first address electrode 6.
  • the waveforms during the address period in FIGS. 18 and 19 are applied to the first address electrode 6, the second address electrode 7, and the electrodes 5M1 and 5M2 of the display electrode pair. .
  • the pulse width of Pc and PA is 1 ⁇ s, and the voltage is -140V for Pc and + 40V for PA.
  • the pulse applied to the address electrode is a pulse having a narrow pulse width at which no wall charge is generated in the address electrode, causing an address discharge, and the space charge after the address discharge erases the wall charge of the first address electrode 6.
  • an electric field may be applied between the electrodes to accumulate space charges in the cells on the electrodes.
  • the method of applying an electric field at this time is that an address discharge is performed, that is, a discharge cell in which space charge exists is a discharge cell that does not want to cause a main discharge for display, and an electrode used in the main discharge is An electric field is applied as the same potential.
  • an electric field may be applied between the display electrode pair 5M1, 5M2 and the first address electrode 6 with the same potential and the second address electrode 7.
  • the first discharge in the sustain period causes a trigger discharge between the first address electrode 6 and the display electrode 5M1, and transfers the discharge to another electrode 5M2.
  • a pulse Ps is applied to the electrode 5M2 and a pulse ⁇ is applied to the first address electrode 6 to the electrodes 5M1 and 5M2 of the display electrode pair and the first address electrode 6.
  • Pulse ⁇ is pulse width so as not to generate wall charge power (1 s)
  • the pulse width of the pulse P S is the pulse width extent that the wall charge is accumulated (4 s). Note that the voltage of ⁇ is 200 V and the voltage of Ps is 240 V.
  • the cell where no paddle discharge has occurred that is, the cell with the wall charge on the first paddle electrode 6 first triggers discharge between the first paddle electrode 6 and the electrode 5M1, and then between the electrodes 5M1 and 5M2.
  • the discharge shifts.
  • the pulse width of the pulse P S is large, the wall charges by the discharge in the discharge of happened cells respectively formed in the display electrode 5M1 and 5M2, discharge goes persist as the wall charges for the next discharge.
  • a trigger signal is applied to the first address electrode 6 in this embodiment.
  • a trigger is discharged using only the wall charges on the first address electrode without applying a trigger signal.
  • the range of voltage settings that can be driven can be increased.
  • the pulse applied to the display electrode during the sustain period has been described as a pulse of negative polarity, the present invention is not limited to this, and a pulse of positive polarity and bipolar may be used.
  • FIG. 20 is a drive waveform diagram for explaining a method of driving the display discharge tube according to the present embodiment.
  • the electrodes 5M1 and 5M2, which constitute the display electrode pair, and the first address electrode 6 A reset discharge for accumulating wall charges is performed between the display electrode 5M1 and the first address electrode 6 in order to initialize the upper charges.
  • the pulse (PwWK PWWA) shown during the reset period of FIG. 20 is applied to the display electrode 5M1 and the first address electrode 6 as shown in the figure. Since this pulse is that the purpose of the wall charges are generated, the pulse width is much long pulse (4 s) next to the wall charges are accumulated, the voltage of the voltage of PwwA is + 40V P WWK in one 240V is there.
  • the reset discharge is performed between the display electrode 5M1 and the first address electrode 6, but if there is a charge on the first address electrode 6 or the second address electrode 7 before the address discharge, the reset discharge is performed. It is good to apply an electric field at least between the pair of address electrodes even after a reset discharge between the first address electrode 6 and the electrode pair of the display electrode 5, or after the reset discharge. There is no problem with accumulating charge.
  • the waveform during the address period shown in FIG. 20 is changed to the first address electrode 6, the second address electrode 7, and the display electrode pair electrode 5M1. And 5M2.
  • a pulse P C of the negative polarity to the first Adoresu electrode 6 potentiometrically you discharge Adoresu period, the second Adoresu electrodes 7 for applying a positive pulse PA.
  • the pulse width of Pc PA is 1 s, and the voltage is -140V for Pc and + 40V for PA.
  • the pulse applied to the address electrode is a pulse having a narrow pulse width at which no wall charge is generated in the address electrode, causing an address discharge, and the space charge after the address discharge erases the wall charge of the first address electrode 6.
  • a pulse Ps is applied to the electrodes 5M1 and 5M2 of the display electrode pair and the first electrode 6 at the beginning of the sustain period shown in FIG. 20, and a pulse ⁇ is applied to the first address electrode 6.
  • the pulse ⁇ has a pulse width (1 ⁇ s) at which wall charges cannot be generated, and the pulse width of the pulse Ps has a pulse width (4 ⁇ s) at which wall charges are accumulated.
  • the voltage of the [rho T is + 40V
  • the voltage of the P S - is 200V.
  • the pulse ⁇ applied to the first address electrode 6 is a pulse having a polarity opposite to that of the wall charge existing on the first address electrode. Since no wall charge exists in the cell where the address discharge has occurred, and the wall charge exists in the cell where the address discharge has not occurred, the pulse having the opposite polarity to the wall charge existing on the first address electrode 6 is discharged.
  • a trigger discharge first occurs between the first address electrode 6 and the electrode 5M1, and thereafter, the electrode 5M1 and the electrode 5M1 The discharge shifts between 5 ⁇ 2, followed by the main discharge.
  • the pulse width of the pulse Ps is wide, and in the cell where the discharge has occurred, wall discharge is formed on the display electrodes 5M1 and 5M2 by the discharge, and the discharge continues as the wall charge of the next discharge.
  • the pulse applied to the display electrode during the sustain period has been described with the pulse of negative polarity, the present invention is not limited to this, and a pulse of positive polarity and bipolar may be used.
  • the driving voltage of the trigger discharge during the sustain period is increased, but there are advantages that the address speed is high and the contrast of the displayed image is high.
  • FIG. 21 is a drive waveform diagram for explaining a method of driving the display discharge tube according to the present embodiment.
  • an embodiment of the driving method of the display discharge tube will be described with reference to FIG.
  • the charges on the electrodes 5M1 and 5M2 and the first address electrode 6 constituting the electrode pair of the display electrode 5 are initialized.
  • a discharge is performed between the electrodes 5M1 and 5M2 to erase wall charges on the surface of the dielectric layer 8a. That is, the pulse P WSA the electrode 5M1 during the reset period of FIG. 21 is performed by applying a pulse of P ⁇ SK to 5M2. This pulse is narrow and a pulse because it is intended to prevent wall charges.
  • the pulse width of PwSA PfSK is 1 ⁇ s
  • the voltage of PffSA is + 40V P WSK
  • the waveform during the address period in FIG. 21 is applied to the first address electrode 6, the second address electrode 7, and the display electrodes 5M1 and 5M2.
  • a pulse P C of the negative polarity to the first Adoresu electrode 6 at a potential difference to discharge in the address period, a second ad A positive pulse PA is applied to the electrode 7.
  • a voltage + V higher than the potential of the discharge space generated by the address discharge is applied to one side of the electrode of the display electrode 5, for example, 5M1, so as not to cause a discharge with the first address electrode 6 on the low voltage side.
  • a voltage of 1 V M lower than the potential of the discharge space generated by the address discharge is applied to the second address electrode 7 on the high voltage side within a range in which no discharge occurs.
  • the pulse applied to these address electrodes is such that a pulse (Pc, PA) with a narrow pulse width that does not generate wall charges is applied to the address electrodes to cause an address discharge, and the space charges after the address discharge are applied to the display electrode 5.
  • the wall charges of the opposite polarities to the voltage applied to the electrodes 5M1 and 5M2 are accumulated.
  • the pulse width of the pulse Pc and the pulse PA is both a 1 mu s, the voltage of the pulse P C is an 140 V, pulse PA is + 40V, + VM is + 30V, one V M is one 30V .
  • the sustaining pulse Ps is applied to the electrodes 5M1 and 5M2 constituting the display electrodes during the sustain period shown in FIG.
  • discharge sustain during the sustain period can be controlled according to the presence or absence of the address discharge (image information).
  • FIG. 22 is a drive waveform diagram for explaining a method of driving the display discharge tube according to the present embodiment.
  • first in order to make all the discharge cells on the screen of the display discharge tube uniform, namely, the electrodes 5M1 and 5M2 of the electrode pair constituting the display electrode 5 and the first electrode 6
  • a discharge for accumulating wall charges is performed between the electrodes 5M1 and 5M2.
  • the pulse width of the PW K is 4 ⁇ s
  • the voltage of PwwA is + 40V
  • the voltage of the P WWK an 240V.
  • the waveform during the address period in FIG. 22 is applied to the first address electrode 6, the second address electrode 7, and the display electrodes 5M1 and 5M2.
  • the pulse applied to the address electrode applies a pulse with a narrow pulse width that does not generate wall charge to the address electrode, causing an address discharge, and the space charge after the address discharge erases the wall charge of the display electrodes 5M1 and 5M2.
  • the pulse width of the pulse p A is 1 beta s
  • pulse PA is + 40V.
  • a sustaining pulse P S was applied to the display electrodes 5M1 and 5M2, and no address discharge occurred.
  • cells having wall charges on the display electrodes were discharged, and an address discharge occurred. That is, a cell having no wall charge in the display electrode does not discharge.
  • the pulse width of Ps is 4 ⁇ s, and the voltage is -240 V.
  • the sustaining of the discharge during the sustain period can be controlled according to the presence or absence of the address discharge (that is, the image information).

Abstract

L'invention se rapporte à un tube à décharge pour afficheur comportant un groupe d'électrodes comprenant une paire d'électrodes pour afficheur et de premières électrodes d'adressage sur l'une des surfaces frontales de deux substrats opposés et un autre groupe d'électrodes comprenant de secondes électrodes d'adressage sur l'autre surface frontale. Les deux groupes d'électrodes sont disposés de sorte que les électrodes d'un groupe peuvent croiser celles de l'autre groupe et des zones de décharge renfermant un gaz sont situées au niveau des intersections. Lesdites zones de décharge sont cloisonnées par des parois de cloisonnement disposées entre les deux substrats. Les paires d'électrodes d'affichage sont recouvertes d'une couche diélectrique et orientées de manière sensiblement parallèle l'une par rapport à l'autre. Au moins l'une des premières et secondes électrodes d'adressage est également recouverte d'une couche diélectrique. Chaque première électrode d'adressage est disposée entre les deux électrodes de la paire d'électrodes d'affichage et chaque paroi de cloisonnement est disposée entre deux secondes électrodes d'adressage. Lorsque le tube à décharge est fabriqué de la manière décrite ci-dessus, l'efficacité lumineuse et la luminance du tube sont améliorées, du fait que les paires d'électrodes d'affichage et les électrodes d'adressage sont indépendantes les unes des autres et que les paires d'électrodes d'affichage peuvent être placées de façon à être séparées par de longs intervalles.
PCT/JP1998/003248 1998-07-21 1998-07-21 Tube a decharge pour afficheur et procede de commande d'un tel tube WO2000005740A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/003248 WO2000005740A1 (fr) 1998-07-21 1998-07-21 Tube a decharge pour afficheur et procede de commande d'un tel tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/003248 WO2000005740A1 (fr) 1998-07-21 1998-07-21 Tube a decharge pour afficheur et procede de commande d'un tel tube

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WO2000005740A1 true WO2000005740A1 (fr) 2000-02-03

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1146538A2 (fr) * 2000-03-22 2001-10-17 Fujitsu Hitachi Plasma Display Limited Panneau d'affichage à plasma
EP1659609A1 (fr) * 2004-11-17 2006-05-24 Samsung SDI Co., Ltd. Panneau d'affichage à plasma
WO2007013139A1 (fr) * 2005-07-26 2007-02-01 Fujitsu Hitachi Plasma Display Limited Dispositif d'affichage à plasma
EP1791153A3 (fr) * 2005-11-28 2007-08-08 LG Electronics Inc. Ecran plasma

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JPH06260092A (ja) * 1993-03-01 1994-09-16 Pioneer Electron Corp プラズマディスプレイ装置
JPH0896714A (ja) * 1994-09-28 1996-04-12 Nec Corp プラズマディスプレイパネルとその駆動方法
JPH08306318A (ja) * 1995-05-02 1996-11-22 Nec Corp プラズマディスプレイパネル及びその駆動方法
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
JPH0992163A (ja) * 1995-09-21 1997-04-04 Noritake Co Ltd Ｄｃ型放電表示装置

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Publication number Priority date Publication date Assignee Title
JPH06260092A (ja) * 1993-03-01 1994-09-16 Pioneer Electron Corp プラズマディスプレイ装置
JPH0896714A (ja) * 1994-09-28 1996-04-12 Nec Corp プラズマディスプレイパネルとその駆動方法
JPH08306318A (ja) * 1995-05-02 1996-11-22 Nec Corp プラズマディスプレイパネル及びその駆動方法
JPH0992163A (ja) * 1995-09-21 1997-04-04 Noritake Co Ltd Ｄｃ型放電表示装置
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

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1146538A2 (fr) * 2000-03-22 2001-10-17 Fujitsu Hitachi Plasma Display Limited Panneau d'affichage à plasma
EP1146538A3 (fr) * 2000-03-22 2004-03-31 Fujitsu Hitachi Plasma Display Limited Panneau d'affichage à plasma
EP1659609A1 (fr) * 2004-11-17 2006-05-24 Samsung SDI Co., Ltd. Panneau d'affichage à plasma
US7304433B2 (en) 2004-11-17 2007-12-04 Samsung Sdi Co., Ltd. Plasma display panel
WO2007013139A1 (fr) * 2005-07-26 2007-02-01 Fujitsu Hitachi Plasma Display Limited Dispositif d'affichage à plasma
US7990341B2 (en) 2005-07-26 2011-08-02 Fujitsu Hitachi Plasma Display Limited Plasma display device
EP1791153A3 (fr) * 2005-11-28 2007-08-08 LG Electronics Inc. Ecran plasma
US7501758B2 (en) 2005-11-28 2009-03-10 Lg Electronics Inc. Plasma display apparatus

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