WO2007088622A1 - Affichage et tube a decharge gazeuse - Google Patents

Affichage et tube a decharge gazeuse Download PDF

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Publication number
WO2007088622A1
WO2007088622A1 PCT/JP2006/301773 JP2006301773W WO2007088622A1 WO 2007088622 A1 WO2007088622 A1 WO 2007088622A1 JP 2006301773 W JP2006301773 W JP 2006301773W WO 2007088622 A1 WO2007088622 A1 WO 2007088622A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas discharge
display
tube
support member
display device
Prior art date
Application number
PCT/JP2006/301773
Other languages
English (en)
Japanese (ja)
Inventor
Yosuke Yamazaki
Hitoshi Hirakawa
Manabu Ishimoto
Koji Shinohe
Kenji Awamoto
Original Assignee
Shinoda Plasma 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 Shinoda Plasma Co., Ltd. filed Critical Shinoda Plasma Co., Ltd.
Priority to PCT/JP2006/301773 priority Critical patent/WO2007088622A1/fr
Priority to JP2007556759A priority patent/JPWO2007088622A1/ja
Publication of WO2007088622A1 publication Critical patent/WO2007088622A1/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
    • H01J11/34—Vessels, containers or parts thereof, e.g. substrates
    • H01J11/42—Fluorescent layers
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel

Definitions

  • the present invention relates to a display device having a plurality of gas discharge tube forces having a phosphor layer therein, and in particular, includes a plurality of gas discharge tubes in which a support member on which a phosphor layer is formed is incorporated.
  • the present invention relates to a display device.
  • Patent Document 1 As a thin color display device using a discharge light emitting element, a plasma “tube” array and a plasma “display” panel (PDP) are known (Patent Document 1).
  • Patent Document 1 Japanese Patent Laid-Open No. 2004-178854
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2003-187711 describes a plasma display panel.
  • a pair of substrates are arranged opposite to each other with a discharge space formed therebetween, and a display electrode comprising a pair of scanning electrodes and sustaining electrodes facing the front substrate with a discharge gap. A plurality of are formed. As a result, the distance between the display electrodes is changed between the display electrodes to reduce the noise level during operation from flat to high ground.
  • Patent Document 2 Japanese Patent Laid-Open No. 2003-187711
  • An object of the present invention is to suppress noise generated by a gas discharge tube. Means for solving the problem
  • a display device includes a plurality of light emitting points each having a plurality of light emitting points in the longitudinal direction, with a support member having a phosphor layer formed therein and a discharge gas sealed therein. Gas discharge tubes are juxtaposed, and an electrode is disposed on at least one surface of the plurality of gas discharge tubes. The support member of each gas discharge tube of the plurality of gas discharge tubes is divided into a plurality of portions in the longitudinal direction.
  • the present invention also relates to a gas discharge tube for the display device described above.
  • FIG. 1 illustrates a schematic partial structure of a plasma 'tube' array type color display device 10 according to an embodiment of the present invention.
  • the display device 10 includes a plurality of transparent elongated gas / gas discharge tubes 11R, 11G, 11B, 12R, 12G and 12B arranged in parallel to each other, a transparent front support sheet or a thin substrate force.
  • X indicates a sustain electrode or X electrode of the display electrode 2
  • Y indicates a scan electrode or Y electrode of the display electrode 2.
  • R, G and B indicate red, green and blue, which are the emission colors of the phosphors.
  • the support substrates 31 and 32 are made of, for example, a flexible PET film or glass.
  • the narrow tube 20 of the elongated gas discharge tube 11R, 11G, 11B,... Is made of a transparent insulator, such as, for example, borosilicate glass, Pyrex®, soda glass, quartz glass or zerodur, Typically, the outer diameter is 2 mm or less, for example, the tube has a cross-sectional width of about lmm and a height of about 0.55 mm, a length of 300 mm or more, and a tube wall thickness of about 0.1 mm.
  • a transparent insulator such as, for example, borosilicate glass, Pyrex®, soda glass, quartz glass or zerodur
  • the outer diameter is 2 mm or less, for example, the tube has a cross-sectional width of about lmm and a height of about 0.55 mm, a length of 300 mm or more, and a tube wall thickness of about 0.1 mm.
  • the support member 6 is made of an insulator such as borosilicate glass, Pyrex (registered trademark), quartz glass, soda glass, and lead glass, as with the gas discharge tubes 11R, 11G, and 1IB thin tubes 20.
  • the phosphor layer 4 is formed on the support member.
  • the support member is formed by applying a phosphor paste on the support member outside the glass tube, firing it to form the phosphor layer 4 on the support member, and then inserting the support member into the glass tube. Can be arranged.
  • Various phosphor pastes known in the art can be used as the phosphor paste.
  • the electron emission film 5 generates charged particles by collision with the discharge gas.
  • the phosphor layer 4 excites the discharge gas enclosed in the gas discharge tube and generates visible light using vacuum ultraviolet light generated during the deexcitation process of the excited rare gas atoms. Emits light.
  • FIG. 2A shows a front-side support substrate 31 on which a plurality of transparent display electrode pairs 2 are formed.
  • FIG. 2B shows a back side support substrate 32 on which a plurality of signal electrodes 3 are formed.
  • the signal electrode 3 is formed on the front surface, that is, the inner surface of the back-side support substrate 32, and is provided along the longitudinal direction of the gas discharge tubes 11R, 11G, 11B,.
  • the pitch between adjacent signal electrodes 3 is the same as the width of each of the gas discharge tubes 11R, 11G, 11B,..., For example, 1 mm.
  • the plurality of display electrode pairs 2 are formed on the back surface, that is, the inner surface of the front-side support substrate 31 in a known form, and are arranged in a direction intersecting with the signal electrode 3.
  • FIG. 3 shows the arrangement of the display electrode pair 2 as viewed from the display surface side of the display device 10.
  • the width W of each display electrode pair 2 is, for example, 0.85 mm, and each pair of display electrodes 2 faces each other.
  • the distance G between the edges is, for example, 0.4 mm.
  • Each of the display electrode pairs 2 includes a transparent electrode 24 having a width of, for example, 0.75 mm, and a copper electrode bus 24 having a width of, for example, 0.1 mm on the non-discharge region side.
  • the signal electrode 3 and the display electrode pair 2 are connected to the gas discharge tubes 11R and 11G when the display device 10 is assembled. , 11B, ... Make contact with the lower outer peripheral surface part and the upper outer peripheral surface part in close contact with each other. In order to improve the adhesion, an adhesive may be interposed between each electrode and the surface of the gas discharge tube to bond them.
  • an intersection between the signal electrode 3 and the display electrode pair 2 is a unit light emitting region.
  • one of the display electrode pairs 2 is used as a scanning electrode, a selective discharge is generated at the intersection of the scanning electrode and the signal electrode 3, and a light emitting region is selected.
  • a display discharge is generated at the display electrode pair 2 to emit light from the phosphor layer.
  • the selective discharge is a counter discharge generated in the gas discharge tubes 11R, 11G, 11B,... Between the scanning Y electrode and the signal electrode 3 facing each other in the vertical direction.
  • a display discharge is a surface discharge generated in a gas discharge tube 11R, 11G, 11B,... Between a pair of display electrodes arranged in parallel on a plane.
  • the display electrode pair 2 and the signal electrode 3 can generate a discharge in the discharge gas in the tube by applying a voltage.
  • the electrode structure of the gas discharge tubes 11R, 11G, 11B,... Is a structure in which three electrodes are arranged in one light emitting portion, and a display discharge is generated by a display electrode pair.
  • a structure in which display discharge is generated between the display electrode 2 and the signal electrode 3 is not limited to this.
  • the display electrode pair 2 may be a single electrode, and the display electrode 2 may be used as a scanning electrode to generate a selective discharge and a display discharge (opposite discharge) between the display electrode 2 and the signal electrode 3. ⁇ .
  • the support member 6 having the phosphor layer 4 formed therein is inserted into the thin tube 20 having the electron emission film 5 formed on the inner surface.
  • the capillary tube 20 is filled with a discharge gas in which neon and xenon are mixed, and both ends of the capillary tube 20 are fused and sealed. At that time, the support member 6 is fused together with the thin tube 20 and fixed to the gas discharge tubes 11R, 11G, 11B,.
  • FIG. 4 shows a cross-sectional structure perpendicular to the longitudinal direction of the plurality of gas discharge tubes 11R, 11G, and 1IB of the display device 10.
  • the gas discharge tubes 11R, 11G, 11B,... Have phosphor layers 4R, 4G, and 4B formed on the inner surfaces of the back support members 6R, 6G, and 6B.
  • a tubule 20 having a length of lm to 3 m.
  • the red phosphor 4R includes a material of an iterator system ((Y. Ga) BO: Eu), and the green phosphor 4G is a zinc silicate system (Zn Si).
  • blue phosphor 4B contains BAM-based (BaMgAl 2 O: Eu) material.
  • a back side support substrate 32 is bonded to the bottom surfaces of the gas discharge tubes 11R, 11G, 11B,.
  • Signal electrodes 3R, 3G, 3B,... are disposed on the bottom surfaces of the gas discharge tubes 11R, 11G, 11B,.
  • the support members 6R, 6G, and 6B have a generally boat-like or rod-like shape, and a cross-sectional shape perpendicular to the longitudinal direction is generally U-shaped or C-shaped.
  • the support members 6R, 6G, and 6B have, for example, a lateral width of about 700 ⁇ m, a height force S of about 400 ⁇ m, and a wall thickness of about 100 ⁇ m.
  • the display device 10 can have a curved non-planar shape. Therefore, the gas discharge tubes 11R, 11G, 11B,... Can be bent together with the internal support members 6R, 6G, and 6B.
  • FIG. 5A shows a structure of a cross section in the longitudinal direction of a tube of a normal display device.
  • FIG. 5B shows the structure of the longitudinal section of the tube of the display device 10 according to the embodiment of the present invention.
  • a plurality of gas discharge tubes 11 including a support member 6 in a normal display device have the same natural vibration frequency in the longitudinal direction, so that the gas discharge occurs during the driving of the display device. There may be audible noise from tube 11. Noise generated while driving the display device is highly directional. The reason is that the plurality of gas discharge tubes 11 constituting the display device 10 have substantially uniform dimensions, have the same natural frequency, and generate in-phase resonance vibrations. It is estimated to be.
  • the wavelength ⁇ of the standing wave in the length direction of the gas discharge tube 11 is as follows.
  • the support member 6 of the phosphor layer 4 inserted into the gas discharge tube 11 is divided into a plurality of portions 61, 62, 63,.
  • the lengths of the plurality of portions 61 to 69 are distributed to various different non-uniform lengths.
  • the plurality of gas discharge tubes 11 have different natural frequencies. As a result, the occurrence of in-phase vibration and noise caused by the resonance phenomenon is prevented.
  • the number of the divided parts 61 to 69 of the support member 6 is typically 1 to 14, and preferably 2 to 7. As the number of parts 61-69 increases, the amount of work for the insertion increases.
  • FIG. 6 shows a plurality of gas discharge tubes 11R, 11G, 11B,.
  • the value of several m of the plurality of portions 61 to 69 of the support member 6 is different between 11R, 11G, and 1IB.
  • some non-adjacent lengths of the plurality of portions 61 to 69 may be the same.
  • the positions of the dividing boundaries of the plurality of portions 61 to 69 that is, the ends between the discharge tubes adjacent to each other in the gas discharge tubes 11R, 11G, 11B,. It is preferable to arrange so that the positions of the parts do not coincide with each other and the positions of the boundaries deviate from each other.
  • the natural vibration frequencies of the multiple support members 6R, 6G, and 6B that support the phosphor layers 4R, 4G, and 4B can be dispersed as much as possible so as not to concentrate on the same value, thereby generating audible noise. Can be prevented.
  • the support member 6 may not be smoothly inserted into the gas discharge tube 11. This is due to contact friction or mechanical resistance generated between the gas discharge tube 11 and the support member 6 due to the length and the minute irregularities that occur during the manufacture of the gas discharge tube. The friction increases with increasing length. In order to smoothly insert the long support member 6, it is necessary to provide a large clearance or space between the thin tube 20 and the support member 6. As a result, the width of the phosphor layer 4 in the gas discharge tube 11 becomes narrow, so that the ultraviolet rays generated in the internal space cannot be efficiently used for display.
  • the gas discharge tubes 11R, 11G, 11B,... are divided into a plurality of short portions 61 to 69, thereby forming the gas discharge tubes 11R, 11G, 11B,.
  • the widths of the support members 6R, 6G, and 6B of the phosphor layers 4R, 4G, and 4B in the gas discharge tubes 11R, 11G, and 1IB can be further increased.
  • FIG. 1 illustrates a partial structure of a color display device in the form of a plasma 'tube' array, according to an embodiment of the present invention.
  • FIG. 2A shows a front-side support substrate on which a plurality of transparent display electrode pairs are formed.
  • FIG. 2B shows a backside support substrate on which a plurality of signal electrodes or signal electrodes are formed.
  • FIG. 3 shows the arrangement of display electrode pairs as viewed from the display surface of the display device.
  • FIG. 4 shows a cross-sectional structure perpendicular to the longitudinal direction of a plurality of gas discharge tubes of the display device.
  • FIG. 5A shows a structure of a cross section in the longitudinal direction of a tube of a normal display device.
  • FIG. 5B shows the structure of the longitudinal section of the tube of the display device according to an embodiment of the present invention.
  • FIG. 6 shows an example of the arrangement of support members divided into a plurality of portions of each gas discharge tube of the plurality of gas discharge tubes in the front view of the display device.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne un affichage (10) comprenant une pluralité de tubes à décharge gazeuse installés côte à côte. Chacun des tubes à décharge gazeuse est doté d'un support (6R, 6G, 6B) muni d'une couche (4R, 4G, 4B) de luminophore, d'un gaz de décharge et d'une pluralité de points lumineux dans la direction longitudinale. Une électrode (2, 3R, 3G, 3B) est installée sur au moins un côté des tubes à décharge gazeuse. Le support (6R, 6G, 6B) de chaque tube à décharge gazeuse est découpé en plusieurs parties dans la direction longitudinale.
PCT/JP2006/301773 2006-02-02 2006-02-02 Affichage et tube a decharge gazeuse WO2007088622A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2006/301773 WO2007088622A1 (fr) 2006-02-02 2006-02-02 Affichage et tube a decharge gazeuse
JP2007556759A JPWO2007088622A1 (ja) 2006-02-02 2006-02-02 表示装置およびガス放電管

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/301773 WO2007088622A1 (fr) 2006-02-02 2006-02-02 Affichage et tube a decharge gazeuse

Publications (1)

Publication Number Publication Date
WO2007088622A1 true WO2007088622A1 (fr) 2007-08-09

Family

ID=38327210

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/301773 WO2007088622A1 (fr) 2006-02-02 2006-02-02 Affichage et tube a decharge gazeuse

Country Status (2)

Country Link
JP (1) JPWO2007088622A1 (fr)
WO (1) WO2007088622A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05190153A (ja) * 1992-01-14 1993-07-30 Mitsubishi Electric Corp 発光デバイスとその製造方法
JP2003203603A (ja) * 2001-12-28 2003-07-18 Fujitsu Ltd ガス放電管
JP2003272561A (ja) * 2002-03-15 2003-09-26 Fujitsu Ltd ガス放電管及びそれを用いた表示装置
JP2004178854A (ja) * 2002-11-25 2004-06-24 Fujitsu Ltd 発光管アレイ型表示装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05190153A (ja) * 1992-01-14 1993-07-30 Mitsubishi Electric Corp 発光デバイスとその製造方法
JP2003203603A (ja) * 2001-12-28 2003-07-18 Fujitsu Ltd ガス放電管
JP2003272561A (ja) * 2002-03-15 2003-09-26 Fujitsu Ltd ガス放電管及びそれを用いた表示装置
JP2004178854A (ja) * 2002-11-25 2004-06-24 Fujitsu Ltd 発光管アレイ型表示装置

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