WO2009122740A1 - プラズマディスプレイパネル - Google Patents
プラズマディスプレイパネル Download PDFInfo
- Publication number
- WO2009122740A1 WO2009122740A1 PCT/JP2009/001525 JP2009001525W WO2009122740A1 WO 2009122740 A1 WO2009122740 A1 WO 2009122740A1 JP 2009001525 W JP2009001525 W JP 2009001525W WO 2009122740 A1 WO2009122740 A1 WO 2009122740A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- insulator layer
- pdp
- glass substrate
- layer
- display panel
- Prior art date
Links
Images
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
- H01J11/38—Dielectric or insulating 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 a plasma display panel used for a display device or the like.
- the plasma display panel (hereinafter referred to as “PDP”) is a self-luminous and beautiful image display, and is easy to enlarge. Development for higher definition and larger screen is underway.
- the PDP has a front plate on which components such as a display electrode, a dielectric layer, and a protective layer made of MgO are formed, and a back plate on which components such as electrodes, partition walls, an insulator layer, and a phosphor layer are formed.
- -G and B are arranged opposite each other so as to form minute discharge cells (hereinafter simply referred to as cells), and the periphery is sealed with a sealing member.
- a discharge gas obtained by mixing neon (Ne) and xenon (Xe) or the like is sealed in the cell at a pressure of, for example, about 66500 Pa (about 500 Torr).
- PDP is a self-luminous type, so each cell has a very high viewing angle.
- uniform panel characteristics are required in all areas.
- Various measures are taken against it. For example, by defining the discharge space and the phosphor shape, finding a method for realizing the structure using two coating processes at the same location, and obtaining uniform light emission from the phosphor with respect to changes in viewing angle Etc. are disclosed.
- Patent Document 1 and Patent Document 2 are known as prior art document information relating to the invention of this application.
- the PDP of the present invention has a front plate in which a plurality of display electrodes are arranged on a front glass substrate, a back plate in which address electrodes are arranged on the rear glass substrate so as to intersect the display electrodes, and an insulator layer is arranged on the address electrodes. It is a PDP in which a face plate is disposed so as to form a discharge space, the insulator layer does not contain lead, and the average value of the porosity in the thickness of the insulator layer up to 50% from the back glass substrate Is in the range of 5% to 15%.
- a front plate in which a plurality of display electrodes are arranged on the front glass substrate, an address electrode on the rear glass substrate so as to intersect the display electrodes, and an insulator layer on the address electrode are arranged.
- the PDP is disposed so as to face the back plate so that a discharge space is formed, the insulator layer does not contain lead, and the surface roughness of the insulator layer surface is 0.5 ⁇ m to 0.75 ⁇ m in Ra. Range.
- FIG. 1 is a cross-sectional perspective view showing a schematic configuration of a PDP in an embodiment of the present invention.
- FIG. 2 is a perspective view showing the configuration of the back plate of the PDP.
- FIG. 3 is a diagram showing the relationship of the amount of the light-emitting portion oozing out with respect to the porosity of the PDP.
- FIG. 4 is a view showing the relationship of the coating margin amount to the porosity of the PDP.
- FIG. 5 is a diagram showing the relationship of the amount of the light-emitting portion oozing with respect to Ra of the PDP.
- FIG. 6 is a diagram showing the relationship of the coating margin amount to Ra of the PDP.
- FIG. 7 is a diagram showing the relationship between the reflectance of the PDP and the amount of the oozing part oozing out.
- FIG. 1 is a cross-sectional perspective view showing a schematic configuration of a PDP according to an embodiment of the present invention
- FIG. 2 is a perspective view showing a configuration of a back plate of the PDP.
- the PDP 10 includes a front plate 20 and a back plate 30, and the front plate 20 and the back plate 30 are opposed to each other so as to form a discharge space 40.
- the front plate 20 has a plurality of stripe-shaped display electrodes 24 that are paired with a scanning electrode 22 and a sustaining electrode 23 on a front glass substrate 21 such as sodium borosilicate glass formed by a float method. .
- a black stripe 25 serving as a light shielding portion is formed between adjacent display electrodes 24.
- a dielectric layer 26 is formed so as to cover the display electrode 24 and the black stripe 25, and a protective layer 27 made of magnesium oxide (MgO) is further formed so as to cover the dielectric layer 26.
- MgO magnesium oxide
- the back plate 30 has an address electrode 32 formed on the back glass substrate 31 in a direction perpendicular to the display electrode 24 of the front plate 20, and an insulating layer 33 is provided to cover the address electrode 32.
- an insulating layer 33 is provided to cover the address electrode 32.
- the insulator layer 33 for example, stripe-shaped and cross-beam-shaped barrier ribs 34 are provided, and phosphor layers 35 are provided on the side surfaces of the barrier ribs 34 and on the surface of the insulator layer 33.
- the phosphor layer is formed in order in the discharge space 40 partitioned by the adjacent partition walls 34, a red phosphor layer 35R that emits red light, a green phosphor layer 35G that emits green light, and a blue phosphor layer 35B that emits blue light. Has been.
- FIG. 2 is a perspective view showing the configuration of the back plate of the PDP in the embodiment of the present invention.
- the partition walls 34 of the PDP 10 are formed in a cross-beam shape by horizontal partition walls 34b parallel to the display electrodes 24 and vertical partition walls 34a orthogonal to the horizontal partition walls 34b. It is formed to be slightly higher than the height.
- the present invention can also be applied to a flat cross-beam shape. Further, the present invention can be applied to a stripe-shaped partition excluding the horizontal partition 34b.
- the scanning electrode 22 and the sustain electrode 23 that constitute the display electrode 24 provided on the front plate 20 are each constituted by a transparent electrode and a bus electrode.
- the bus electrode is made of a material such as chromium (Cr) / copper (Cu) / chromium (Cr) or silver (Ag), and is electrically connected to the transparent electrode.
- the front plate 20 and the back plate 30 are arranged opposite to each other with the partition wall 34 interposed therebetween so that the display electrode 24 and the address electrode 32 are orthogonal to each other and form a minute discharge space 40 inside, and the periphery is a sealing member. Seal with. Thereafter, a discharge gas mixed with neon (Ne) and xenon (Xe) or the like is sealed in the discharge space 40 at a pressure of about 66500 Pa (500 Torr) to complete the PDP, and a video signal voltage is selectively applied to the display electrode 24. When applied, the discharge gas is discharged, and the ultraviolet rays generated thereby excite the phosphor layers 35 of the respective colors to emit red, green and blue colors, thereby displaying a color image.
- a discharge gas mixed with neon (Ne) and xenon (Xe) or the like is sealed in the discharge space 40 at a pressure of about 66500 Pa (500 Torr) to complete the PDP, and a video signal voltage is selectively applied to the display electrode
- the insulator layer 33 is formed through a drying process and a baking process.
- a partition wall forming paste containing a material for the partition wall 34 is applied on the insulator layer 33 and patterned into a predetermined shape to form a partition wall material layer, and then the partition wall 34 is formed by firing.
- a method of patterning the partition wall forming paste applied on the insulator layer 33 a photolithography method or a sand blast method can be used.
- the phosphor layer 35 is formed by applying and baking a phosphor paste containing a phosphor material on the insulator layer 33 between the adjacent partition walls 34 and on the side surfaces of the partition walls 34.
- the front plate 20 and the back plate 30 provided with predetermined constituent members are arranged to face each other so that the scanning electrodes 22 and the address electrodes 32 are orthogonal to each other, and the periphery thereof is sealed with a glass frit and discharged.
- the PDP 10 is completed by enclosing a discharge gas containing neon (Ne), xenon (Xe), or the like in the space 40.
- An insulator paste layer is formed by applying an insulator paste on the rear glass substrate 31 on which the address electrodes 32 are formed by a die coating method or the like so as to cover the address electrodes 32. Thereafter, the back glass substrate 31 is dried in a drying furnace or the like to volatilize and remove the solvent component in the insulator paste layer. Next, by baking the insulator paste layer, the binder in the insulator paste layer is removed and the glass component is melted to form the insulator layer 33.
- insulator pastes were used with a blending ratio of 30-40% glass component, 20-30% filler, 10-20% binder, and 20-30% solvent.
- the glass component is a material component that does not substantially contain lead.
- the porosity of the insulator layer 33, surface roughness, a reflectance, etc. can be changed by changing the ratio of a filler and a glass component. In the experimental results described later, samples were prepared by changing these mixing ratios.
- the prior art has a problem that the voltage required for discharging gradually increases with the cumulative lighting time of the PDP, and finally the lighting cannot be performed with the voltage set by the circuit. It was.
- the insulating layer 33 is coated with a resin in the gap and the periphery in order to increase the contrast at the time of SEM imaging and to prevent measurement variations due to cracking at the time of cleaving.
- This measurement was performed using a scanning electron microscope S-3000 manufactured by Hitachi, Ltd. Imaging used for the calculation was performed in the backscattered electron measurement mode with an acceleration voltage of 15 kV and a work distance of 15 mm.
- the degree of increase in the required lighting voltage value of the PDP 10 is estimated as the amount of seepage of the lighting part.
- the amount of seepage of the lighting part is measured as follows. (1) Only a certain area of the PDP image display area is always lit in white, and the other areas are always in a non-lighting state, and 100 hours have elapsed in that state. (2) A phenomenon is observed in which light is emitted in a peripheral portion of a region that is always lit white, that is, a region that is normally not lit. (3) The width of the light emitting area of the non-lighting portion is measured, and this is used as the amount of the lighting portion oozing out.
- FIG. 3 is a diagram showing the relationship between the porosity of the insulator layer 33 and the amount of the light-emitting portion that leaks out. As described above, when the average value of the void ratio in the region from the rear glass substrate 31 side to 50% of the thickness of the insulating layer 33 in the rear plate 30 exceeds 15%, the amount of the light-emitting portion seepage may increase. Recognize.
- the lighting part seepage amount that is 10 mm or less that can sufficiently achieve the life of the PDP 10. That is, in order to ensure the life of the PDP 10, the porosity of the insulator layer 33 needs to be 15% or less.
- the coating margin amount is a width of an appropriate coating thickness that can be normally applied when the phosphor paste is applied to the back plate 30. For example, if the coating thickness is smaller than the appropriate value, the phosphor layer 35 will come off at that location, resulting in a defective discharge cell that does not emit light or has a low luminance.
- the phosphor paste overflows the adjacent discharge cells beyond the barrier ribs 34, and the color mixture between the discharge cells and the phosphor film thickness vary greatly, resulting in a failure as well.
- the back plate 30 having a large appropriate value width that does not cause phosphor coating defects is desirable.
- FIG. 4 is a diagram showing the relationship between the porosity of the insulator layer 33 and the phosphor coating margin amount.
- the coating margin amount decreases as the porosity of the region from the rear glass substrate 31 side to 50% of the thickness of the insulator layer 33 decreases.
- the allowable range of the phosphor coating defect occurrence rate of the PDP 10 is an application margin amount of 10 ⁇ m or more. That is, in order to secure the manufacturing yield of the PDP 10, it can be seen that the porosity of the region from the rear glass substrate 31 side to 50% of the thickness of the insulator layer 33 is required to be 5% or more.
- the average value of the porosity in the region from the back glass substrate 31 side to 50% of the thickness of the insulating layer 33 in the back plate 30 is in the range of 5 to 15%. This is a requirement required for the insulator layer 33 in order to ensure and not to reduce the yield due to defective phosphor coating.
- the inventors have found that the surface roughness (Ra) of the insulating layer 33 in the back plate 30 has a great influence on the problems of the prior art described above. Specifically, it has been found that the above-mentioned problems can be solved by setting the surface roughness (Ra) of the insulator layer 33 in the range of 0.5 to 0.75 ⁇ m.
- the surface roughness (Ra) of the insulator layer 33 is 0.75 ⁇ m or less in order to set the amount of the light-emitting portion leaching to 10 mm or less.
- the phosphor coating margin amount can be secured.
- the surface roughness (Ra) of the insulator layer 33 needs to be 0.5 ⁇ m or more. This is because a paste-like coating solution is repelled if the surface is too smooth during phosphor coating.
- the inventors have found that the reflectance of the insulating layer 33 on the back plate 30 has a great influence on the problems of the prior art described above. Specifically, it has been found that the above problem can be solved by setting the reflectance of the insulating layer 33 in the range of 50 to 67%.
- the reflectance was measured in accordance with JIS-R-3106 as a total reflectance with respect to a wavelength of 550 nm. Further, the measurement was performed using Spectrophotometer: CM-3600d manufactured by MINOLTA.
- FIG. 7 is a diagram showing the relationship between the reflectance of the insulator layer 33 and the amount of the lighting portion that oozes out.
- the amount of the lighting portion increases.
- the amount of seepage of the lighting part is 10 mm or less that can sufficiently achieve the life of the PDP 10. That is, in order to ensure the life of the PDP 10, the reflectance of the insulator layer 33 needs to be 67% or less.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
Description
20 前面板
21 前面ガラス基板
22 走査電極
23 維持電極
24 表示電極
25 ブラックストライプ
26 誘電体層
27 保護層
30 背面板
31 背面ガラス基板
32 アドレス電極
33 絶縁体層
34 隔壁
34a 縦隔壁
34b 横隔壁
35 蛍光体層
35R 赤色蛍光体層
35G 緑色蛍光体層
35B 青色蛍光体層
40 放電空間
図1から図7により、本発明の実施の形態におけるPDPの構成および特徴について説明する。まず、図1から図2により本発明のPDPの主要構成について説明する。図1は、本発明の実施の形態におけるPDPの概略構成を示す断面斜視図、図2は同PDPの背面板の構成を示す斜視図である。
(1)背面板30を割断し、絶縁体層33の断面が露出したサンプルを切り出す。
(2)絶縁体層33の厚みのうち背面ガラス基板31から50%までの領域を二次電子走査型電子顕微鏡(SEM)で撮像する。
(3)撮像された絶縁体層33断面の画像から、空隙率を算出する。
(1)PDP画像表示領域のある領域のみを常時白色点灯し、その他の領域を常時非点灯の状態とし、その状態で100時間経過させる。
(2)常時白色点灯している領域の周辺部、すなわち本来常時非点灯の領域で発光する現象が観測される。
(3)上記、常時非点灯部の発光している領域の幅を測定し、これを点灯部染み出し量とする。
Claims (5)
- 前面ガラス基板上に複数の表示電極を配置した前面板と、前記表示電極に交差するように背面ガラス基板上にアドレス電極を配置し前記アドレス電極上に絶縁体層を配置した背面板とを、放電空間が形成されるように対向配置したプラズマディスプレイパネルであって、前記絶縁体層の厚みのうち、前記背面ガラス基板から50%までにおける空隙率の平均値が5%~15%の範囲であることを特徴とするプラズマディスプレイパネル。
- 前記絶縁体層の表面粗さがRaで0.5μm~0.75μmの範囲であることを特徴とする請求項1に記載のプラズマディスプレイパネル。
- 前面ガラス基板上に複数の表示電極を配置した前面板と、前記表示電極に交差するように背面ガラス基板上にアドレス電極を配置し前記アドレス電極上に絶縁体層を配置した背面板とを、放電空間が形成されるように対向配置したプラズマディスプレイパネルであって、前記絶縁体層表面の表面粗さが、Raで0.5μm~0.75μmの範囲であることを特徴とするプラズマディスプレイパネル。
- 前面ガラス基板上に複数の表示電極を配置した前面板と、前記表示電極に交差するように背面ガラス基板上にアドレス電極を配置し前記アドレス電極上に絶縁体層を配置した背面板とを、放電空間が形成されるように対向配置したプラズマディスプレイパネルであって、前記絶縁体層表面の波長550nmに対する反射率が50%~67%の範囲であることを特徴とするプラズマディスプレイパネル。
- 前記絶縁体層が鉛を含まないことを特徴とする請求項1から請求項4のいずれか一項に記載のプラズマディスプレイパネル。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980000362A CN101681774A (zh) | 2008-04-04 | 2009-04-01 | 等离子显示器面板 |
US12/602,575 US20100176721A1 (en) | 2008-04-04 | 2009-04-01 | Plasma display panel |
EP09727952A EP2144268A1 (en) | 2008-04-04 | 2009-04-01 | Plasma display panel |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008097913 | 2008-04-04 | ||
JP2008097912 | 2008-04-04 | ||
JP2008-097913 | 2008-04-04 | ||
JP2008-097912 | 2008-04-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009122740A1 true WO2009122740A1 (ja) | 2009-10-08 |
Family
ID=41135140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/001525 WO2009122740A1 (ja) | 2008-04-04 | 2009-04-01 | プラズマディスプレイパネル |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100176721A1 (ja) |
EP (1) | EP2144268A1 (ja) |
JP (1) | JP2009266810A (ja) |
KR (1) | KR20090130341A (ja) |
CN (1) | CN101681774A (ja) |
WO (1) | WO2009122740A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10134723A (ja) * | 1996-09-04 | 1998-05-22 | Toray Ind Inc | プラズマディスプレイ |
WO2000019479A1 (fr) * | 1998-09-29 | 2000-04-06 | Fujitsu Limited | Procede de fabrication d'un ecran a plasma et d'une structure de substrat |
JP2000306513A (ja) * | 1999-04-20 | 2000-11-02 | Dainippon Printing Co Ltd | プラズマディスプレイパネル用の背面板 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005276762A (ja) * | 2004-03-26 | 2005-10-06 | Fujifilm Electronic Materials Co Ltd | Pdp用無機隔壁層及びその製造方法 |
-
2009
- 2009-03-26 JP JP2009075541A patent/JP2009266810A/ja active Pending
- 2009-04-01 KR KR1020097025184A patent/KR20090130341A/ko not_active Application Discontinuation
- 2009-04-01 CN CN200980000362A patent/CN101681774A/zh active Pending
- 2009-04-01 WO PCT/JP2009/001525 patent/WO2009122740A1/ja active Application Filing
- 2009-04-01 US US12/602,575 patent/US20100176721A1/en not_active Abandoned
- 2009-04-01 EP EP09727952A patent/EP2144268A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10134723A (ja) * | 1996-09-04 | 1998-05-22 | Toray Ind Inc | プラズマディスプレイ |
WO2000019479A1 (fr) * | 1998-09-29 | 2000-04-06 | Fujitsu Limited | Procede de fabrication d'un ecran a plasma et d'une structure de substrat |
JP2000306513A (ja) * | 1999-04-20 | 2000-11-02 | Dainippon Printing Co Ltd | プラズマディスプレイパネル用の背面板 |
Also Published As
Publication number | Publication date |
---|---|
JP2009266810A (ja) | 2009-11-12 |
KR20090130341A (ko) | 2009-12-22 |
CN101681774A (zh) | 2010-03-24 |
EP2144268A1 (en) | 2010-01-13 |
US20100176721A1 (en) | 2010-07-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
USRE41465E1 (en) | Plasma display and method for producing the same | |
JP2005322507A (ja) | プラズマディスプレイパネル | |
JP3007751B2 (ja) | プラズマディスプレイパネルの製造方法 | |
WO2009122740A1 (ja) | プラズマディスプレイパネル | |
US7687993B2 (en) | Image display | |
JP4375113B2 (ja) | プラズマディスプレイパネル | |
JP2010027322A (ja) | プラズマディスプレイパネル | |
JP2009277517A (ja) | プラズマディスプレイパネル | |
JP2009277518A (ja) | プラズマディスプレイパネル | |
JP2010097788A (ja) | プラズマディスプレイパネル | |
JP2010102836A (ja) | プラズマディスプレイパネル | |
JP2011258401A (ja) | プラズマディスプレイパネル | |
JP2013084355A (ja) | プラズマディスプレイパネルおよびその製造方法 | |
JP2013084354A (ja) | プラズマディスプレイパネルおよびその製造方法 | |
JP4788391B2 (ja) | プラズマディスプレイパネルの製造方法 | |
JP2001319579A (ja) | プラズマディスプレイ用部材およびそれを用いたプラズマディスプレイ | |
JP5035210B2 (ja) | プラズマディスプレイパネル | |
KR100560511B1 (ko) | 플라즈마 디스플레이 패널의 제조 방법 | |
JP2010257576A (ja) | プラズマディスプレイパネル | |
JP2000323031A (ja) | ガス放電表示装置の蛍光体層形成方法 | |
JP2009193947A (ja) | プラズマディスプレイパネル | |
JP2011228001A (ja) | プラズマディスプレイパネル | |
JP2013222572A (ja) | プラズマディスプレイパネル | |
JP2012238409A (ja) | 蛍光体ペースト、およびそれを用いたプラズマディスプレイパネル装置とプラズマディスプレイ装置の製造方法 | |
JP2012238480A (ja) | 蛍光体ペースト、およびそれを用いたプラズマディスプレイパネル装置とプラズマディスプレイ装置の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980000362.8 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009727952 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12602575 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09727952 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20097025184 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |