WO2009125461A1 - プラズマディスプレイパネル及びプラズマディスプレイ装置 - Google Patents
プラズマディスプレイパネル及びプラズマディスプレイ装置 Download PDFInfo
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- WO2009125461A1 WO2009125461A1 PCT/JP2008/056858 JP2008056858W WO2009125461A1 WO 2009125461 A1 WO2009125461 A1 WO 2009125461A1 JP 2008056858 W JP2008056858 W JP 2008056858W WO 2009125461 A1 WO2009125461 A1 WO 2009125461A1
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- WIPO (PCT)
- Prior art keywords
- plasma display
- display panel
- glass substrate
- discharge
- magnesium oxide
- Prior art date
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/34—Vessels, containers or parts thereof, e.g. substrates
- H01J11/40—Layers for protecting or enhancing the electron emission, e.g. MgO 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
- H01J11/12—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
Definitions
- the present invention relates to discharge stabilization of a plasma display, and particularly to priming particle emission.
- discharge stabilization is an important technology.
- a structure / material that starts discharge at a low voltage and supplies abundant priming particles is indispensable.
- the magnesium oxide crystals emit and maintain priming particles (electrons) for a sufficient time (16.6 mmsec or more, which corresponds to a display period of at least one frame). There is a need to.
- Patent Document 1 discloses a crystal having a particle size distribution in which a proportion of a crystal having a predetermined particle size or more out of a magnesium oxide crystal powder that emits cathodoluminescence is a predetermined value or more. It is disclosed that a crystalline magnesium oxide layer containing powder is provided. JP 2006-147417 A
- the inventor reduced the abundance of magnesium oxide deposited film (protective film layer) and aluminum, which is an impurity of magnesium oxide, which is a discharge stabilizing material particle applied on the protective film layer, to perform priming. It has been found that the particle release duration is significantly increased.
- An object of the present invention is to provide a technique for stabilizing the discharge of a plasma display panel by increasing the diameter of magnesium oxide and adjusting the residual amount of impurities in the magnesium oxide using the above characteristics. There is to do.
- a plasma display panel includes a glass substrate module having a glass substrate, a dielectric layer in contact with the glass substrate, and a protective film layer protecting the dielectric layer, Magnesium oxide having a BET specific surface area of 3 m 2 / mg or less is used as the discharge stabilizing material particles applied on the protective film layer.
- Another plasma display panel includes a glass substrate module having a glass substrate, a dielectric layer in contact with the glass substrate, and a protective film layer protecting the dielectric layer.
- the impurity of the magnesium oxide may be aluminum, iron, nickel, manganese, or chromium.
- a plasma display panel includes a glass substrate module having a glass substrate, a dielectric layer in contact with the glass substrate, and a protective film layer protecting the dielectric layer, As the discharge stabilizing material particles applied on the protective film layer, magnesium oxide containing impurities mixed with all or part of aluminum, iron, nickel, manganese, and chromium is used, and aluminum, iron, nickel, manganese, and chromium are used.
- the plasma display panel characterized in that each content in the magnesium oxide is 20 ppm or less.
- These plasma display panels may be characterized by using magnesium oxide, calcium oxide, strontium oxide, barium oxide, or a composite oxide thereof as a material for the protective film layer.
- a magnesium oxide single crystal particle having a large particle size and a small amount of impurities is used as a priming supply material for a discharge stabilizing material particle, so that it can be used for a long time of one frame or more. Good priming effect can be maintained.
- FIG. 5 is a graph showing the relationship between the resting time and the discharge delay in a state where a certain amount of magnesium oxide powders having different particle sizes used in the second embodiment are dispersed as discharge stabilizing material particles on the surface of the protective film. is there.
- FIG. 1 is a perspective sectional view showing a configuration of a front glass substrate side module 10 of a plasma display panel, which is assumed in the first embodiment of the present invention.
- FIG. 2 is a cross-sectional perspective view of a plasma display panel 100 using the front glass substrate side module 10.
- the front glass substrate side module 10 includes a front glass substrate 1, a dielectric layer 2, a protective film layer 3, discharge stabilizing material particles 4, an X electrode 5, and a Y electrode 6.
- the front glass substrate 1 is a glass substrate used for sealing the constituent elements of the plasma display panel between a rear glass substrate (not shown in the figure) (the rear glass substrate 21 in FIG. 2).
- the dielectric layer 2 is a transparent dielectric layer coated on the front glass substrate 1. After the X electrode 5 and the Y electrode 6 are configured, a low melting point glass layer is formed with a thickness of 20 microns.
- the protective film layer 3 is an insulating protective film for preventing the dielectric layer 2 from being damaged by a discharge phenomenon. It is formed by forming a layer of a protective film material (magnesium oxide, strontium oxide, calcium oxide, barium oxide, etc.) by 1 micron by vacuum deposition.
- a protective film material magnesium oxide, strontium oxide, calcium oxide, barium oxide, etc.
- the discharge stabilizing material particles 4 supply priming particles and emit luminescence. After the protective film layer 3 is formed, magnesium oxide powder is dispersed on the protective film as a discharge stabilizing material.
- the X electrode 5 and the Y electrode 6 apply a voltage between the X electrode 5 and the Y electrode 6 after preliminary discharge by an address electrode (address electrode 27 in FIG. 2) provided on a rear glass substrate (not shown in FIG. 1).
- This is a transparent electrode for plasma discharge of a rare gas such as xenon sealed between the front glass substrate 1 and the back glass substrate.
- Each of these electrodes includes a transparent electrode 14 and a bus electrode 15.
- the discharge generated by the plasma excites and emits a phosphor (any one of the red phosphor 24, the green phosphor 25, and the blue phosphor 26).
- These X electrode 5 and Y electrode 6 are formed of ITO and Cr / Cu / Cr on the front glass substrate 1.
- the plasma display panel 100 using the front glass substrate side module 10 includes the front glass substrate side module 10 and the back glass substrate side module 20.
- the rear glass substrate side module 20 includes a rear glass substrate 21, a base layer 22, a rib 23, a red phosphor 24, a green phosphor 25, a blue phosphor 26, and an address electrode 27.
- the rear glass substrate 21 is a glass substrate used for sealing the components of the plasma display panel between the rear glass substrate 1 and the front glass substrate 1.
- the underlayer 22 is a dielectric layer for protecting the address electrode 27 in the configuration of the ribs 23 and the like.
- the rib 23 is a partition for making plasma discharge independent for each cell.
- a space (discharge space) partitioned by this, the front glass substrate side module 10 and the rear glass substrate 21 is filled with a discharge gas.
- the red phosphor 24 is a phosphor that emits red light when excited by plasma generated by voltage application to the X electrode 5, the Y electrode 6, and the address electrode 27. Mainly yttrium compounds are used.
- the green phosphor 25 is a phosphor that emits green light by ultraviolet excitation by plasma.
- a green silicate phosphor is used as the green phosphor 25.
- the blue phosphor 26 is a phosphor that emits blue light by ultraviolet excitation by plasma. As the blue phosphor 26, a blue aluminate-based phosphor is used.
- the address electrode 27 is an electrode for performing preliminary discharge for plasma discharge.
- front glass substrate side module 10 and rear glass substrate side module 20 are combined, and the periphery is sealed with low melting glass. After sealing, the inside of the panel is evacuated to a temperature and degassed. After that, discharge gas (xenon 10% + neon 90%) is sealed inside the panel.
- FIG. 3 is a graph showing the relationship between the concentration of aluminum, which is one of the impurities in the magnesium oxide powder, and the discharge delay.
- the horizontal axis of the graph represents the content of aluminum impurities in the magnesium oxide powder. This unit is PPM. On the other hand, the vertical axis represents the delay of static discharge, and the unit is ⁇ (micro) sec.
- FIG. 4 is a graph showing the relationship between the concentration of iron, one of the impurities in the magnesium oxide powder, and the discharge delay.
- the horizontal axis of this graph also represents the content (ppm) of iron impurities in the magnesium oxide powder, and the vertical axis represents the delay ( ⁇ sec) of static discharge.
- FIG. 5 is a graph showing the relationship between the concentration of nickel, one of the impurities in the magnesium oxide powder, and the discharge delay.
- FIG. 6 is a graph showing the relationship between the concentration of manganese, which is one of the impurities in the magnesium oxide powder, and the discharge delay. Also in nickel and manganese, the change in slope is gradual, but a change in discharge delay is observed at a content of 20 ppm.
- the content of these impurities in the magnesium oxide powder is preferably 20 ppm or less.
- FIG. 7 is a graph showing the relationship between the concentration of chromium, which is one of the impurities in the magnesium oxide powder, and the discharge delay.
- the slope of the graph changes at the measurement point before the content rate of 40 ppm.
- the number that is practically important as the discharge delay of the plasma display panel is 1 ⁇ sec. In the meaning of the region of 1 ⁇ sec or less, it is desirable to set it to 20 ppm or less, which is the same as other impurities described so far.
- these may be mixed as impurities depending on the process of production and distribution, but even when mixed, each may be 20 ppm or less.
- the impurity concentration in the magnesium oxide powder used for the discharge stabilizing material particles 4 As described above, by setting the impurity concentration in the magnesium oxide powder used for the discharge stabilizing material particles 4 to 20 ppm or less for the single species, it is possible to suppress the discharge delay.
- FIG. 8 is a graph showing the particle size distribution of magnesium oxide powders having two different particle sizes, “small particle size” and “large particle size”, used in the present embodiment.
- FIG. 9 is a graph showing the relationship between the resting time and the discharge delay in a state where a certain amount of these powders are dispersed as the discharge stabilizing material particles 4 on the surface of the protective film.
- the magnesium oxide powder used in the measurement of “small particle size” in this figure is vapor-phase synthesized MgO (particle size 2000A product) manufactured by Ube Materials. This product has the following properties.
- BET surface area 2.4 square meters / mg
- BET particle diameter 8950 ⁇
- Arithmetic mean diameter 1.4202 ( ⁇ m)
- Arithmetic standard deviation 0.8222 ( ⁇ m)
- Mode diameter 1.0812 ( ⁇ m)
- Geometric mean diameter 1.2587 ( ⁇ m)
- the horizontal axis in FIG. 9 represents the rest time until re-discharge.
- the vertical axis represents 90% successful discharge delay at which the cumulative probability of successful discharge after voltage pulse application is 90%.
- the unit is ⁇ sec on both the vertical and horizontal axes.
- the longer the rest period until re-discharge the greater the delay in discharge. This is due to the decrease in the amount of priming particles in the discharge space due to the longer rest period.
- the discharge delay is remarkably increased at 1 msec or more.
- the discharge delay time is maintained at 1 ⁇ sec up to 100 msec (100,000 ⁇ sec) or more.
- the plasma display panel in the present specification is not provided to the end user as it is, and is actually distributed as a product after assembling a high voltage system circuit, a control system circuit, a housing, and the like.
- products using the plasma display panel of the present invention are also included in the field of view.
- the present invention is assumed to be used for a plasma display panel as described above. However, the present invention can also be applied to a plasma display tube (PDT) that uses the same kind of technology of phosphor emission by plasma discharge, and products using the same.
- PDT plasma display tube
- discharge stabilizing material particles are applied on the protective film of the front glass substrate of the front glass substrate side module.
- the priming particles are supplied by energizing the X electrode and the Y electrode (these may not be in the front glass substrate side module)
- the discharge stabilizing material particles are applied to the back glass substrate side module. Even in such a case, it is applicable.
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
Description
図1は本発明の第1の実施の形態で想定する、プラズマディスプレイパネルの前面ガラス基板側モジュール10の構成を表す斜視断面図である。また、図2はこの前面ガラス基板側モジュール10を用いたプラズマディスプレイパネル100の断面斜視図である。
次に、本発明の第2の実施の形態について説明する。本実施の形態では粒度の相違による放電遅れの相違について検討している。
BET粒径 :2793オングストローム
算術平均径 :0.9254(μm)
算術標準偏差:0.9790(μm)
モード径 :0.6267(μm)
幾何平均径 :0.7321(μm)
一方「粒度大」の計測時に用いた酸化マグネシウムの粉体は、上記「粒度小」の製品を固相合成により粒径を増大させたものを用いた。以下はその性質である。
BET粒径 :8950オングストローム
算術平均径 :1.4202(μm)
算術標準偏差:0.8222(μm)
モード径 :1.0812(μm)
幾何平均径 :1.2587(μm)
なお、実際に個々の粉体を正確にそろえることは不可能であり、実際にはばらつきが生じる。このばらつきは図8に表したとおりである。
Claims (10)
- ガラス基板と、前記ガラス基板に接する誘電体層と、前記誘電体層を保護する保護膜層と、を有するガラス基板モジュールを含むプラズマディスプレイパネルであって、
前記保護膜層上に塗布される放電安定化材料粒子としてBET比表面積が3m2/mg以下である酸化マグネシウムを用いることを特徴とするプラズマディスプレイパネル。 - ガラス基板と、前記ガラス基板に接する誘電体層と、前記誘電体層を保護する保護膜層と、を有するガラス基板モジュールを含むプラズマディスプレイパネルであって、
前記保護膜層上に塗布される放電安定化材料粒子として不純物の含有量が20ppm以下の酸化マグネシウムを用いることを特徴とするプラズマディスプレイパネル。 - 請求項2記載のプラズマディスプレイパネルにおいて、前記不純物がアルミニウムであることを特徴とするプラズマディスプレイパネル。
- 請求項2記載のプラズマディスプレイパネルにおいて、前記不純物が鉄であることを特徴とするプラズマディスプレイパネル。
- 請求項2記載のプラズマディスプレイパネルにおいて、前記不純物がニッケルであることを特徴とするプラズマディスプレイパネル。
- 請求項2記載のプラズマディスプレイパネルにおいて、前記不純物がマンガンであることを特徴とするプラズマディスプレイパネル。
- 請求項2記載のプラズマディスプレイパネルにおいて、前記不純物がクロムであることを特徴とするプラズマディスプレイパネル。
- ガラス基板と、前記ガラス基板に接する誘電体層と、前記誘電体層を保護する保護膜層と、を有するガラス基板モジュールを含むプラズマディスプレイパネルであって、
前記保護膜層上に塗布される放電安定化材料粒子としてアルミニウム、鉄、ニッケル、マンガン、クロムの全て、あるいは一部が混在した不純物を含む酸化マグネシウムを用い、
前記アルミニウム、前記鉄、前記ニッケル、前記マンガン、前記クロムの前記酸化マグネシウム中におけるそれぞれの含有量が20ppm以下であることを特徴とするプラズマディスプレイパネル。 - 請求項1ないし8のいずれか1項に記載のプラズマディスプレイパネルにおいて、前記保護膜層の材料として、酸化マグネシウム、酸化カルシウムを用いることを特徴とするプラズマディスプレイパネル。
- 請求項1ないし9のいずれか1項に記載のプラズマディスプレイパネルを用いることを特徴としたプラズマディスプレイ装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2008/056858 WO2009125461A1 (ja) | 2008-04-07 | 2008-04-07 | プラズマディスプレイパネル及びプラズマディスプレイ装置 |
CN2008801251391A CN101919021A (zh) | 2008-04-07 | 2008-04-07 | 等离子体显示面板和等离子体显示装置 |
KR1020107016033A KR101109958B1 (ko) | 2008-04-07 | 2008-04-07 | 플라즈마 디스플레이 패널 및 플라즈마 디스플레이 장치 |
US12/863,616 US20110018786A1 (en) | 2008-04-07 | 2008-04-07 | Plasma display panel and plasma display device |
JP2010507071A JPWO2009125461A1 (ja) | 2008-04-07 | 2008-04-07 | プラズマディスプレイパネル及びプラズマディスプレイ装置 |
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PCT/JP2008/056858 WO2009125461A1 (ja) | 2008-04-07 | 2008-04-07 | プラズマディスプレイパネル及びプラズマディスプレイ装置 |
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US (1) | US20110018786A1 (ja) |
JP (1) | JPWO2009125461A1 (ja) |
KR (1) | KR101109958B1 (ja) |
CN (1) | CN101919021A (ja) |
WO (1) | WO2009125461A1 (ja) |
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JP2010140837A (ja) * | 2008-12-15 | 2010-06-24 | Panasonic Corp | プラズマディスプレイパネル |
US10720197B2 (en) | 2017-11-21 | 2020-07-21 | Samsung Electronics Co., Ltd. | Memory device for supporting command bus training mode and method of operating the same |
Citations (3)
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JP2007265914A (ja) * | 2006-03-29 | 2007-10-11 | Pioneer Electronic Corp | ガス放電表示装置 |
WO2007139184A1 (ja) * | 2006-05-31 | 2007-12-06 | Panasonic Corporation | プラズマディスプレイパネルとその製造方法 |
JP2008053012A (ja) * | 2006-08-23 | 2008-03-06 | Fujitsu Hitachi Plasma Display Ltd | プラズマディスプレイパネル用基板構体の製造方法、プラズマディスプレイパネル |
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KR100515678B1 (ko) * | 2002-10-10 | 2005-09-23 | 엘지전자 주식회사 | 플라즈마 디스플레이 패널과 그 보호막 |
CA2744925C (en) * | 2003-04-08 | 2014-06-03 | Grant L. Hutchison | Method and system for executing a database query |
JP4674360B2 (ja) * | 2004-03-19 | 2011-04-20 | テクノロジーシードインキュベーション株式会社 | 電子ビーム蒸着法により成膜する酸化マグネシウム薄膜材料 |
JP4683547B2 (ja) * | 2004-09-16 | 2011-05-18 | パナソニック株式会社 | プラズマディスプレイパネル |
JP4399344B2 (ja) * | 2004-11-22 | 2010-01-13 | パナソニック株式会社 | プラズマディスプレイパネルおよびその製造方法 |
KR100980069B1 (ko) * | 2005-09-29 | 2010-09-03 | 삼성에스디아이 주식회사 | 플라즈마 디스플레이 패널 및 그 구동 방법 |
KR20070047075A (ko) * | 2005-11-01 | 2007-05-04 | 엘지전자 주식회사 | 플라즈마 디스플레이 패널의 보호막 |
EP1780749A3 (en) * | 2005-11-01 | 2009-08-12 | LG Electronics Inc. | Plasma display panel and method for producing the same |
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2008
- 2008-04-07 KR KR1020107016033A patent/KR101109958B1/ko not_active IP Right Cessation
- 2008-04-07 WO PCT/JP2008/056858 patent/WO2009125461A1/ja active Application Filing
- 2008-04-07 US US12/863,616 patent/US20110018786A1/en not_active Abandoned
- 2008-04-07 JP JP2010507071A patent/JPWO2009125461A1/ja active Pending
- 2008-04-07 CN CN2008801251391A patent/CN101919021A/zh active Pending
Patent Citations (3)
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JP2007265914A (ja) * | 2006-03-29 | 2007-10-11 | Pioneer Electronic Corp | ガス放電表示装置 |
WO2007139184A1 (ja) * | 2006-05-31 | 2007-12-06 | Panasonic Corporation | プラズマディスプレイパネルとその製造方法 |
JP2008053012A (ja) * | 2006-08-23 | 2008-03-06 | Fujitsu Hitachi Plasma Display Ltd | プラズマディスプレイパネル用基板構体の製造方法、プラズマディスプレイパネル |
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US20110018786A1 (en) | 2011-01-27 |
KR20100093612A (ko) | 2010-08-25 |
CN101919021A (zh) | 2010-12-15 |
KR101109958B1 (ko) | 2012-02-24 |
JPWO2009125461A1 (ja) | 2011-07-28 |
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