JP4281689B2 - Plasma display panel member and plasma display panel using the same - Google Patents

Description

  The present invention relates to a member used for manufacturing a plasma display panel.

  Plasma display panels (hereinafter sometimes referred to as PDPs) are capable of high-speed display compared to liquid crystal panels and are easy to increase in size, so that they have penetrated into fields such as office equipment and public information display devices. ing. In addition, progress in the field of high-definition television is highly expected.

  With such expansion of applications, a color PDP having a delicate and large number of display pixels has attracted attention. The PDP causes plasma discharge between electrodes facing each other in a discharge space provided between a front member and a back member having an address electrode, and ultraviolet rays generated from the gas enclosed in the discharge space are fluorescent. Typically, the display is performed by using light emission generated by irradiation of the body. In a typical PDP, the front member has a scan electrode, a sustain electrode, and a dielectric layer on a substrate, and the back member has an address electrode, a dielectric layer, a barrier rib, and a phosphor on the substrate. In driving the PDP, scan pulses are sequentially applied to the scan electrodes, and in accordance with this timing, a data pulse having a polarity opposite to the scan pulse corresponding to the display data is applied to the display cells corresponding to the scan electrodes corresponding to the address electrodes. Light is emitted, and the discharge is maintained by a sustain pulse applied to the sustain electrode. In such a PDP, a discharge is generated by applying a voltage to address electrodes arranged in a direction orthogonal to the scan electrodes and sustain electrodes.

  In recent years, there has been an increasing demand for larger size especially for home use. As described above, the PDP needs to form a discharge space inside by bonding the front member and the back member. If these members are warped or twisted, or if the bonding accuracy is poor, the properties of each display cell (Sealing degree of the space, electrode gap, etc.) become non-uniform, and there arises a problem that characteristics are deteriorated particularly at the peripheral edge and corner. The larger the PDP, the more pronounced the effect. In addition, the progress of high definition requires that the electrode gap be narrow, but as the array interval between the scan electrode and the sustain electrode is reduced, the space charge moves to other cells adjacent in the column direction, resulting in erroneous discharge. And there was a problem that unlit lights occurred.

  As the cause of the deterioration of the panel characteristics, it is pointed out that the erroneous discharge and the drive voltage margin are narrowed due to the movement of the charges beyond the partition wall.

  Thus, in order to prevent such an erroneous discharge and a decrease in the driving voltage margin, there is a strict requirement for the accuracy of the base material, etc., particularly in a large-sized PDP, and the bonding accuracy is also high. A very high standard was required.

  However, using such highly accurate materials, or requiring high-level control for each process has had a great impact on productivity. For this reason, there has been a demand for a technique that does not impair display quality even with a large PDP with a high degree of freedom.

  To solve this problem, in addition to grid the barrier ribs, the scanning electrodes formed on the front plate and the address electrodes and barrier ribs are formed on the rear plate along the inclined direction with respect to the sustain electrodes. It has been proposed to prevent the movement of (Patent Document 1).

On the other hand, as address electrode design technology, a plurality of address electrodes that enter the discharge space with one side face as the entrance side are different from each other in order to suppress deterioration of display quality due to discharge variation in each display cell during write discharge. It is known to use an electrode width (Patent Document 2).
JP 2000-48727 A JP 2003-308783 A

  An object of the present invention is to provide a member for a plasma display that can suppress erroneous discharge and non-lighting associated with an increase in screen size and resolution in a conventional PDP and can provide a high-quality PDP even when the screen is large. And

In order to solve the above problems, the present invention provides a member for a plasma display in which a plurality of address electrodes disposed substantially in parallel with on board, the arrangement direction both end portions of the address electrodes of the display area The width of the address electrodes positioned is larger than the average width of the address electrodes in the center of the display area, and the widths of both longitudinal ends of the address electrodes located in the center of the display area in the arrangement direction of the address electrodes are and main idea that it is a plasma display panel member, wherein the greater than the average width of the address electrodes, also proposes various preferred embodiments.

  According to the present invention, it is possible to obtain a plasma display panel with high display quality that suppresses the movement of electric charges and prevents unnecessary discharge, prevents unlighting, and supports large size and high definition.

  The PDP member of the present invention will be specifically described below. The member for PDP according to the present invention is provided with a plurality of address electrodes on a substrate. In a general PDP member, the address electrode is often formed on a substrate together with a dielectric layer, a partition wall layer, and a phosphor layer, and is configured as a back member. Therefore, in the following description, the case of manufacturing as a back member will be described as an example.

  As the substrate used for the member for PDP of the present invention, heat-resistant glass is generally used, and examples thereof include “PD200” manufactured by Asahi Glass Co., “PP8” manufactured by Nippon Electric Glass Co., Ltd. in addition to soda glass. Note that the material does not necessarily need to be glass. If the required characteristics (flatness, thermal characteristics, heat resistance, etc.) as a substrate can be satisfied, the material is limited to glass, such as metal or ceramics. Is not to be done.

  The address electrode is formed by providing another layer on the substrate as necessary, and then disposing it in a desired pattern using a metal such as silver, aluminum, chromium, or nickel. The pattern of the address electrode is formed by applying a photosensitive metal paste containing the above metal powder and a photosensitive organic component, then pattern exposure using a photomask, and dissolving unnecessary portions in the development process. It is preferable to use a photosensitive paste method in which an electrode pattern is formed by removing and further heating and baking at 400 to 600 ° C. Other methods include a method of forming a metal paste containing metal powder by a printing method such as screen printing or offset printing, or a method of transferring an electrode pattern formed on a film to a substrate, for example. It is done. The address electrodes are usually formed in stripes, and the electrodes are formed substantially in parallel. The width of the address electrode is preferably 20 to 230 μm, more preferably 30 to 200 μm. If the width of the address electrode is too thin, the resistance value tends to be high and accurate driving tends to be difficult, and if it is too thick, the distance between adjacent electrodes tends to be small, so that a short defect tends to occur. The address electrodes are formed at a pitch corresponding to the display cell (region for forming each RGB of the pixel). A normal PDP is preferably formed at a pitch of 100 to 500 μm, and a high-definition PDP is preferably formed at a pitch of 100 to 400 μm.

By than the width of the table示域inner portion of the address electrode is increased structure towards the width of the address electrodes in the array direction both end portions of the address electrodes of the display area, the erroneous lighting or non-lighting can be suppressed to some extent. Here, the display area refers to an area used as a screen, and is usually an area where discharge occurs. 1A in sequence with the direction both end points to the area where several to several tens of both outer sides of the address electrodes formed in stripes in the display region is present (Figure 1 of the address electrodes of the display area, 1B regions of ). As this area is widely secured, the effect of suppressing erroneous lighting and non-lighting is greater. Therefore, such a large address electrode is provided in an area having a width of at least 0.5 cm from both ends of the display area. It is preferably provided in a range of 3 cm from the both ends, and more preferably in a range of 5 cm from the both ends. In particular, it is preferably provided in a range of 10 cm from both ends. In other words, most preferred PDP member according to the present invention in the case the arrangement so that the relationship as described below when a 10cm from both ends of the display area of the arrangement direction both end portions of the address electrodes of the display area are met Has been. The display area inner portion is a region other than the array direction both end portions of the address electrodes of the display area of the (1C in FIG. 1, 1D region). In aspects of this, the width of the address electrodes in the array direction both end portions of the address electrodes of the display area is made larger than the width of the address electrode of the display area inner part, which is present in each area respectively the width of the electrode has the above relationship (typically, a minimum of the address electrode width is greater than the maximum address electrode width of the display area inside portion in the arrangement direction both end portions of the address electrodes of the display area ) Is preferable, but it means that the average width of the electrodes in these regions has the above relationship. That is, when the average of the width of the address electrode of the display area inside portion Wa, the width of the address electrodes in the array direction both end portions of the address electrodes of the display area and Wb, have a relationship of Wb> Wa, preferably, Wb > 1.02 × Wa, more preferably Wb> 1.05 × Wa, more preferably Wb> 1.08 × Wa. The upper limit is not particularly limited, but if the width is too wide, the definition will be affected, and a short-circuit problem will also occur, so Wb <1.4 × Wa, more preferably about Wb <1.3 × Wa. . Further, in a preferred embodiment, the average width in the arrangement direction both end portions of the address electrodes of the display area of the address electrode when the xcm from both ends arrangement direction both end portions of the address electrodes of the display area Wb (x), If the average width of the address electrodes in the display area at that time is defined as Wa (x), Wb (10) / Wa (10)> 0.8 × Wb (3) / Wa (3), more preferably , Wb (10) / Wa (10)> 0.9 × Wb (3) / Wa (3). Here, when there is a change in the width in the longitudinal direction in each address electrode, the width of the electrode is obtained by dividing the electrode area by the length. The bonding of the front member and the rear member tends to leave distortion at both ends, and the distortion has the greatest influence at both ends. Therefore, by increasing the width of the address electrode in the region, the movement of charges is suppressed, and The overlap with the partition walls can be avoided, and the occurrence of erroneous discharge and non-lighting due to the movement of charges at both ends can be suppressed. Moreover, power consumption can be suppressed by setting the area | region with a large address electrode width to width 5-10 cm.

Oite The present onset bright, the address electrodes has a larger width in the display area periphery than the width of the display area central portion. The display area peripheral portion refers to an outer peripheral area in the display area (areas 1A, 1B, and 1C in FIG. 1), and the display area central portion refers to an area other than the display area peripheral edge in the display area (in FIG. 1). 1D region). That is, in the above-described aspect, the relationship between the electrode widths on both sides and the inner side in the arrangement direction of the address electrodes in the display area is shown. In this aspect, upper and lower ends, that is, regions at both ends in the longitudinal direction of the address electrodes. , Including the relationship with. In this aspect, the width of the electrode in the peripheral area of the display area is configured to be larger than the width of the electrode in the central area of the display area. By doing so, it is possible to suppress the occurrence of erroneous discharge and non-lighting due to the movement of charges generated at both ends of the address electrode in the longitudinal direction . Further, the power consumption can be further suppressed by setting the area having the large address electrode width at the periphery of the display area to be 5 to 10 cm from the end of the display area. Longitudinal both end address electrodes wide area of (the portion corresponding to 1C of FIG. 1) is or lighting erroneous who are widely ensured not address electrode positioned in the center portion, in the arranging direction of the address electrodes of the display area Since the effect of suppressing the lamp is great, it is provided at least in a region having a width of 0.5 cm or more from both ends in the longitudinal direction of the address electrode, and in a range within 3 cm from both ends in the longitudinal direction of the address electrode in the display region. Preferably, it is provided within a range of 5 cm from both ends of the address electrode in the longitudinal direction, and most preferably provided within a range of 10 cm from both ends of the address electrode in the longitudinal direction . Here, the width of the address electrode in the peripheral area of the display area is larger than the width of the address electrode in the central area of the display area. The width of the address electrodes at the ends is larger, and the width of the address electrodes at both ends in the longitudinal direction of the address electrodes located in the center of the display area in the arrangement direction of the address electrodes is larger than the width of the address electrodes at the center of the display area. Means that. Typically, the minimum of the address electrode width is large in the arrangement direction both end portions of the address electrodes of the display area than the maximum width of the address electrode of the display area central portion, and the maximum of the address electrodes of the display area central portion Although it is preferable that the address electrode width at both ends in the longitudinal direction of the address electrode located in the center of the display area in the arrangement direction of the address electrode in the display area is larger than the width, the average value of the width of the address electrode in the center of the display area is displayed as Wa ′. when the width of the address electrodes in the array direction both ends of the range of address electrodes Wb, the width of the longitudinal ends of the address electrodes of the address electrode of the display region periphery was Wc, Wb> Wa 'and Wc> Wa It means 'relationship'. Preferably, Wb> 1.02 × Wa ′ and Wc> 1.02 × Wa ′ or Wc> 1.05 × Wa ′ or Wc> 1.08 × Wa ′, more preferably Wb> 1.05 × Wa. 'And Wc> 1.02 × Wa' or Wc> 1.05 × Wa 'or Wc> 1.08 × Wa', more preferably Wb> 1.08 × Wa and Wc> 1.02 × Wa 'or Wc> 1.05 × Wa ′ or Wc> 1.08 × Wa ′. The upper limit is not particularly limited, but if it is too wide, it affects the definition and also causes a short circuit problem. Therefore, Wb <1.4 × Wa ′, more preferably Wb <1.3. × Wa ′, on the other hand, preferably Wc <1.4 × Wa ′, more preferably Wc <1.3 × Wa ′ . Contact name for each address electrodes, the address electrodes width when the width in the longitudinal direction are different, the width of the electrode in that region by dividing the electrode area in that region by the length of the region is determined.

Further, in a preferred embodiment of the present invention, the address electrodes in the arrangement direction both end portions of the address electrodes of the display area, the address electrodes in the region of the longitudinal both ends of the address electrodes of the display area (area of 1B in FIG. 1) The width is larger than the width at the center (1A in FIG. 1). That is, it is preferable that the address electrode is configured to have the largest width in the corner area of the display area. The corners of the display area are most susceptible to the uneven thickness of the sealing material and the warpage of the front plate and the back plate. For this reason, the gap between the front member and the back member is particularly likely to occur, and the movement of charges is likely to occur. Therefore, to be larger than the address width of the center portion of the width in the region of the longitudinal both ends of the address electrodes in the arrangement direction both end portions of the address electrodes of the display area, the effect can be effectively suppressed In addition, the degree of freedom in the process can be increased, and at the same time, a PDP having a good display quality free from erroneous lighting or non-lighting due to charge transfer can be obtained. The longitudinal direction both ends of the area of the address electrode of the display region of the address electrodes in the arrangement direction both end portions of the address electrodes of the display area, from the longitudinal both ends 0.5cm above the address electrode of the display area of the address electrode provided in the region of the width, preferably provided in a range from the longitudinal both ends of the address electrodes of the display range to 3 cm, provided in a range from the longitudinal both ends of the address electrodes of the display region to 5cm Preferably it is. Especially in the range from the longitudinal both ends of the address electrodes of the display area to 10 cm (Incidentally, the the 1B area in the description of the display area periphery not necessarily the same, for example, the address electrode of the display area when the width in the arrangement direction both end portions is 10 cm, provided that a 5cm portions to increase constituting the width of the longitudinal both end portions of the address electrodes of the address electrodes on the inner region from the edge of the display area obtain.). Longitudinal both ends of the region except for the region (of 1A in Figure 1 region of the address electrodes in the arrangement direction both end portions of the address electrodes of the display area to the central portion in the arrangement direction both end portions of the address electrodes of the display area ). Also, the sense of the width in the region of the longitudinal both ends of the address electrodes in the arrangement direction both end portions of the address electrodes of the display area is larger than the width of the address electrodes of the central portion, i.e., the arrangement direction of the address electrodes of the display area the average value of the width of the address electrodes in the longitudinal direction both ends of the address electrodes of the both ends Wd, the average value of the width of the address electrodes in the longitudinal direction central portion of the address electrodes in the arrangement direction both end portions of the address electrodes of the display area When We is defined, it means that Wd> We is satisfied. Preferably, Wd> 1.02 × We, more preferably Wd> 1.05 × We, and even more preferably Wd> 1.08 × We. The upper limit is preferably Wd <1.4 × We, more preferably Wd <1.3 × We because it affects the definition and also causes a short circuit problem. .

  In the present invention, the width of the address electrode is adjusted by changing the mask width at the time of exposure, appropriately changing the coating / printing width when applying or printing the conductive paste, or at the time of etching. This can be achieved by adjusting the mask or forming a desired pattern as a transfer source pattern. The address electrodes may be arranged with two different width electrodes, but the address electrodes having various widths may be arranged in multiple stages. The width of the address electrode in the longitudinal direction may be continuously changed, but may be changed discontinuously or stepwise. Although there is no restriction | limiting in particular as the thickness of an address electrode, It is preferable to set it as 1-10 micrometers, and it is more preferable to set it as 2-7 micrometers. If the address electrode thickness is too thin, the resistance value tends to be large and accurate driving tends to be difficult. If the address electrode thickness is too thick, a large amount of material is required, and it tends to be difficult to obtain the effect of reducing the resistance value that matches the cost. .

  In the plasma display panel member of the present invention, a dielectric layer is preferably formed on the address electrodes. The dielectric layer can be formed, for example, by applying a glass paste mainly composed of glass powder and an organic binder so as to cover the address electrode layer, and then baking at 400 to 600 ° C. As the glass paste used for the dielectric layer, glass powder containing at least one of lead oxide, bismuth oxide, zinc oxide and phosphorus oxide and containing 10 to 80% by weight in total can be preferably used. By setting it as 10 weight% or more, baking at 600 degrees C or less becomes easy, and setting it as 80 weight% or less prevents crystallization and the fall of the transmittance | permeability. These glass powders and an organic binder can be kneaded to produce a paste. As the organic binder to be used, cellulose compounds typified by ethyl cellulose, methyl cellulose and the like, acrylic compounds such as methyl methacrylate, ethyl methacrylate, isobutyl methacrylate, methyl acrylate, ethyl acrylate and isobutyl acrylate can be used. Moreover, you may add additives, such as a solvent and a plasticizer, in glass paste. As the solvent, general-purpose solvents such as terpineol, butyrolactone, toluene and methyl cellosolve can be used. As the plasticizer, dibutyl phthalate, diethyl phthalate, or the like can be used. By adding a filler component in addition to the glass powder, a PDP having a high reflectance and a high luminance can be obtained. As the filler, titanium oxide, aluminum oxide, zirconium oxide and the like are preferable, and it is particularly preferable to use titanium oxide having a particle diameter of 0.05 to 3 μm. The filler content is preferably a glass powder: filler ratio of 1: 1 to 10: 1. The brightness can be improved by setting the filler content to 1/10 or more of the glass powder. Moreover, it can be set as the thing excellent in sinterability by making the quantity of a filler below the equivalent of glass powder. Further, by adding conductive fine particles, it is possible to prevent sparks due to excessive charging during driving. The conductive fine particles are preferably metal powders such as nickel and chromium, and the particle diameter is preferably 1 to 10 μm. When the thickness is 1 μm or more, a sufficient effect can be exhibited, and when the thickness is 10 μm or less, unevenness on the dielectric can be suppressed and partition formation can be facilitated. The content of these conductive fine particles contained in the dielectric layer is preferably 0.1 to 10% by weight. When the content is 0.1% by weight or more, an effect can be obtained, and when the content is 10% by weight or less, a short circuit between adjacent address electrodes can be prevented. The thickness of the dielectric layer is preferably 3 to 30 μm, more preferably 3 to 15 μm. If the thickness of the dielectric layer is too thin, pinholes tend to occur frequently, and if it is too thick, the discharge voltage tends to be high and the power consumption tends to increase.

  In the member for a plasma display panel of the present invention, a partition layer constituting a cell is preferably formed on the dielectric layer.

  The height of the partition provided in the partition layer is suitably 80 μm to 200 μm. By setting the thickness to 80 μm or more, the phosphor and the scan electrode can be prevented from being too close to each other, and the phosphor can be prevented from being deteriorated by discharge. In addition, by setting the thickness to 200 μm or less, it is possible to reduce the distance between the discharge at the scan electrode and the phosphor and to obtain sufficient luminance. Moreover, as a pitch (P) of the partition walls, one having 100 μm ≦ P ≦ 500 μm is often used. In the high-definition plasma display, the partition pitch (P) is 100 μm ≦ P ≦ 250 μm. By setting the thickness to 100 μm or more, the discharge space can be widened and sufficient luminance can be obtained, and by setting the thickness to 500 μm or less, a fine image with fine pixels can be displayed. By setting it to 250 μm or less, it is possible to display a beautiful video of HDTV (high definition) level. It is also preferable to make the gap between the partition walls corresponding to blue, which has a relatively low luminance among RGB, wider than other colors.

  The width of the partition wall is preferably 30 μm or more for the lower limit as the top width, more preferably 40 μm or more, and preferably 100 μm or less for the upper limit, and more preferably 90 μm or less. By setting the top width to 30 μm or more, it is possible to obtain a strength that can withstand a subsequent process. Further, by setting the thickness to 100 μm or less, uniform and strong firing can be performed.

  Here, the top width of the partition wall means the length in the width direction at a portion cut by a 90% horizontal plane from the bottom of the partition wall height. Typically, the length is indicated by 5A shown in FIG. Moreover, when the partition top is flat, it is preferable that the relationship described later is satisfied as the width in a portion cut off at a horizontal plane of approximately 100% of the partition wall height.

  In the member for PDP of the present invention, it is preferable that the top width of the partition has a width relationship corresponding to the width relationship of the address electrodes. By doing in this way, the movement of the electric charge which moves the top of a partition can be suppressed and display quality can be improved. Here, the width relationship corresponding to the width relationship of the address electrodes means that the width of the address electrodes is displayed at the display area edge or display area edge (hereinafter referred to as area β for convenience). The width of the address electrode in the inner part or the display area central part (hereinafter referred to as a region α for convenience) is increased, and the top width of the partition wall in the region β (the top width of the partition wall in the region is referred to as Wβ). Is larger than the top width of the partition wall in the region α (the average partition wall top width in the region is referred to as Wα). That is, it preferably has a relationship of Wβ> Wα. The lower limit of Wβ is preferably Wβ> 1.05 × Wα, more preferably Wβ> 1.10 × Wα, and the upper limit is preferably Wβ <1.70 × Wα, and Wβ <1.40 × More preferably, Wα is used. By setting it to 105% or more, the effect of widening the width can be sufficiently obtained, and charge transfer can be effectively suppressed. Moreover, a brightness | luminance can be raised by setting it as 170% or less.

  In the PDP member of the present invention, preferably, the width of the bottom of the partition has a magnitude relationship opposite to the magnitude relation of the address electrode width. Here, the width relationship opposite to the width relationship between the address electrodes means that the width of the address electrode in the region α is increased in the region β according to the present invention. This means that (the bottom width of the partition wall in the region is referred to as Wβ ′) is smaller than the bottom width of the partition wall in the region α (the average partition wall bottom width in the region is referred to as Wα ′). That is, it preferably has a relationship of Wβ ′ <Wα ′. The lower limit of Wα ′ is preferably 0.7 × Wβ ′ <Wα ′, more preferably 0.80 × Wβ ′ <Wα ′, and the upper limit is preferably 0.95 × Wβ ′> Wα ′. Is preferred. By setting the ratio of the width of the bottom of the partition wall to 95% or less, the influence due to charge transfer can be suppressed, and by setting the ratio to 70% or more, peeling of the partition wall is suppressed and the process stability is not adversely affected. Note that the bottom width of the partition wall is the length in the width direction on the surface of the partition wall in contact with the substrate surface, and is typically the length indicated by 5B in FIG.

  In the present invention, it can be preferably formed as a so-called grid pattern in which auxiliary partitions are formed in a direction perpendicular to the partitions.

  By forming the auxiliary barrier rib, a phosphor layer can also be formed on the wall surface of the auxiliary barrier rib, so that the light emission area can be increased, and erroneous light emission other than the cells that should emit light can be suppressed by the auxiliary barrier rib. it can. Accordingly, it is possible to increase the luminance because the ultraviolet rays efficiently act on the phosphor screen. Further, since the auxiliary barrier ribs are present, the barrier ribs are two-dimensionally coupled, so that the structural strength of the member can be obtained. As a result, the width of the barrier ribs and auxiliary barrier ribs can be reduced, so that the discharge volume in the display cell portion can be increased and the discharge efficiency can be further improved.

  The cross-sectional shape of the auxiliary partition wall can also be formed in a trapezoidal shape or a rectangular shape.

  The height of the auxiliary partition is preferably 1/10 to 1/1 of the height of the partition. By making the height of the auxiliary partition wall 1/10 or more of the height of the partition wall, it is possible to obtain an effect of improving luminance by increasing the light emitting area. Also, considering the color mixing when forming the phosphor layer and the occurrence of crosstalk between other colors when displaying on the plasma display, the height of the auxiliary barrier ribs should be 1/1 or less of the barrier rib height. Is preferred.

  The positions and pitches for forming the auxiliary barrier ribs are preferably formed at positions where the pixels are divided when the plasma display is combined with the front plate from the viewpoint of gas discharge and light emission efficiency of the phosphor layer.

  The width of the auxiliary partition is preferably 30 μm to 100 μm, more preferably 40 to 90 μm, as the top width. By setting the top width of the auxiliary partition wall to 30 μm or more, it is possible to obtain the strength to withstand the auxiliary partition formation process and the subsequent process. Further, by setting the thickness to 100 μm or less, uniform and strong firing can be performed.

  Moreover, it is preferable that the bottom width of the auxiliary partition wall is 110 to 150% of the top width in terms of preventing the auxiliary partition wall from jumping up due to firing shrinkage.

  As a method for forming the partition layer, there are a sand blast method, a screen printing method, and the like. In the present invention, a photolithography method using a photosensitive paste comprising an insulating inorganic component and a photosensitive organic component is preferably applied.

  As the inorganic fine particles of the photosensitive paste, glass, ceramic (alumina, cordierite, etc.) and the like can be used. In particular, glass or ceramics containing silicon oxide, boron oxide, or aluminum oxide as an essential component is preferable.

The particle diameter of the inorganic fine particles is selected in consideration of the shape of the pattern to be produced, but the volume average particle diameter (D50) is preferably 1 to 10 μm, and more preferably 1 to 5 μm. By setting D50 to 10 μm or less, it is possible to prevent surface irregularities from occurring. Moreover, the viscosity adjustment of a paste can be made easy by setting it as 1 micrometer or more. Further, it is particularly preferable in the pattern formation to use glass fine particles having a specific surface area of 0.2 to ³ m ² / g.

  Since the partition wall and the auxiliary partition wall are preferably patterned on a glass substrate having a low heat softening point, inorganic particles containing 60% by weight or more of glass particles having a heat softening temperature of 350 ° C. to 600 ° C. are used as the inorganic particles. Is preferred. Further, by adding glass fine particles or ceramic fine particles having a heat softening temperature of 600 ° C. or higher, the shrinkage ratio during firing can be suppressed, but the amount is preferably 40% by weight or less.

The glass powder to be used has a linear expansion coefficient of 50 × 10 ⁻⁷ / ° C. to 90 × 10 ⁻⁷ / ° C., and further 60 × 10 ⁻⁷ / ° C. to 90 ° C. so as not to warp the glass substrate during firing. It is preferable to use glass fine particles of × 10 ⁻⁷ / ° C.

  As a material for forming the partition wall, a glass material containing an oxide of silicon or boron is preferably used.

  It is preferable that silicon oxide is blended in the range of 3 to 60% by weight. When the content is 3% by weight or more, the denseness, strength, and stability of the glass layer are improved, and the thermal expansion coefficient is within a desired range, thereby preventing mismatch with the glass substrate. Moreover, by setting it as 60 weight% or less, there exists an advantage that a thermal softening point becomes low and baking to a glass substrate is attained.

  Boron oxide can improve electrical, mechanical and thermal characteristics such as electrical insulation, strength, thermal expansion coefficient, and denseness of the insulating layer by blending in the range of 5 to 50% by weight. The stability of glass can be maintained by setting it as 50 weight% or less.

  Furthermore, by containing at least one of bismuth oxide, lead oxide, and zinc oxide in a total amount of 5 to 50% by weight, a glass paste having temperature characteristics suitable for patterning on a glass substrate can be obtained. it can. In particular, when glass fine particles containing 5 to 50% by weight of bismuth oxide are used, advantages such as a long pot life of the paste can be obtained. As the bismuth-based glass fine particles, glass powder containing the following composition is preferably used.

Bismuth oxide: 10 to 40 parts by weight Silicon oxide: 3 to 50 parts by weight Boron oxide: 10 to 40 parts by weight Barium oxide: 8 to 20 parts by weight Aluminum oxide: 10 to 30 parts by weight

  Moreover, you may use the glass fine particle which contains 3-20 weight% of at least 1 sort (s) among lithium oxide, sodium oxide, and potassium oxide. By adding the alkali metal oxide in an amount of 20% by weight or less, preferably 15% by weight or less, the stability of the paste can be improved. Of the above three types of alkali metal oxides, lithium oxide is particularly preferred from the viewpoint of paste stability. As the lithium glass fine particles, for example, glass powder containing the following composition is preferably used.

  As specific glass fine particles in this case, it is preferable to use glass powder having the following composition.

Lithium oxide: 2-15 parts by weight Silicon oxide: 15-50 parts by weight Boron oxide: 15-40 parts by weight Barium oxide: 2-15 parts by weight Aluminum oxide: 6-25 parts by weight

  In addition, if glass fine particles containing both metal oxides such as lead oxide, bismuth oxide and zinc oxide and alkali metal oxides such as lithium oxide, sodium oxide and potassium oxide are used, with a lower alkali content, The thermal softening temperature and linear expansion coefficient can be easily controlled.

  Also, workability is improved by adding aluminum oxide, barium oxide, calcium oxide, magnesium oxide, titanium oxide, zinc oxide, zirconium oxide, etc., especially aluminum oxide, barium oxide, zinc oxide, etc. to the glass fine particles. However, the content is preferably 40% by weight or less, more preferably 25% by weight or less from the viewpoint of the thermal softening point and the thermal expansion coefficient.

  As the photosensitive organic component, it is preferable to contain a photosensitive component selected from at least one of a photosensitive monomer, a photosensitive oligomer, and a photosensitive polymer, and, if necessary, a photopolymerization initiator, A light absorber, a sensitizer, an organic solvent, a sensitization aid, and a polymerization inhibitor are added.

  The photosensitive monomer is a compound containing a carbon-carbon unsaturated bond, and specific examples thereof include monofunctional and polyfunctional (meth) acrylates, vinyl compounds, allyl compounds, and the like. be able to. These can be used alone or in combination of two or more.

  As the photosensitive oligomer and photosensitive polymer, an oligomer or polymer obtained by polymerizing at least one of compounds having a carbon-carbon double bond can be used. In the polymerization, it can be copolymerized with other photosensitive monomers so that the content of these monomers is 10% by weight or more, more preferably 35% by weight or more. By copolymerizing an unsaturated acid such as an unsaturated carboxylic acid with a polymer or oligomer, the developability after exposure can be improved. Specific examples of the unsaturated carboxylic acid include acrylic acid, methacrylic acid, itaconic acid, crotonic acid, maleic acid, fumaric acid, vinyl acetic acid, and acid anhydrides thereof. The acid value (AV) of the polymer or oligomer having an acidic group such as a carboxyl group in the side chain thus obtained is preferably in the range of 50 to 180, and more preferably in the range of 70 to 140. By adding a photoreactive group to the side chain or molecular end of the polymer or oligomer shown above, it can be used as a photosensitive polymer or photosensitive oligomer having photosensitivity. Preferred photoreactive groups are those having an ethylenically unsaturated group. Examples of the ethylenically unsaturated group include a vinyl group, an allyl group, an acrylic group, and a methacryl group.

  Specific examples of the photopolymerization initiator include benzophenone, methyl O-benzoylbenzoate, 4,4-bis (dimethylamino) benzophenone, 4,4-bis (diethylamino) benzophenone, 4,4-dichlorobenzophenone, 4- Examples include benzoyl-4-methylphenyl ketone, dibenzyl ketone, fluorenone, 2,3-diethoxyacetophenone, 2,2-dimethoxy-2-phenyl-2-phenylacetophenone, and the like. One or more of these can be used. The photopolymerization initiator is preferably added in the range of 0.05 to 10% by weight, more preferably 0.1 to 5% by weight, based on the photosensitive component. If the amount of the polymerization initiator is too small, the photosensitivity tends to decrease, and if the amount of the photopolymerization initiator is too large, the residual ratio of the exposed portion tends to be too small.

  It is also effective to add a light absorber. By adding a compound having a high absorption effect of ultraviolet light or visible light, a high aspect ratio, high definition, and high resolution can be obtained. As the light absorber, those comprising organic dyes are preferably used. Specifically, azo dyes, aminoketone dyes, xanthene dyes, quinoline dyes, anthraquinone dyes, benzophenone dyes, diphenylcyanoacrylate dyes are used. Dyes, triazine dyes, p-aminobenzoic acid dyes, and the like can be used. Since organic dye does not remain in the insulating film after baking, it is preferable because the deterioration of the insulating film characteristics due to the light absorber can be reduced. Among these, azo dyes and benzophenone dyes are preferable. The addition amount of the organic dye is preferably 0.05 to 5% by weight, and more preferably 0.05 to 1% by weight. When the addition amount is too small, the effect of adding the light absorber tends to decrease, and when it is too large, the insulating film characteristics after firing tend to decrease.

  A sensitizer is added in order to improve sensitivity. Specific examples of the sensitizer include 2,4-diethylthioxanthone, isopropylthioxanthone, 2,3-bis (4-diethylaminobenzal) cyclopentanone, 2,6-bis (4-dimethylaminobenzal) cyclohexanone, and the like. Is mentioned. One or more of these can be used. When adding a sensitizer to a photosensitive paste, the addition amount is 0.05 to 10 weight% normally with respect to the photosensitive component, More preferably, it is 0.1 to 10 weight%. If the amount of the sensitizer is too small, the effect of improving the photosensitivity tends not to be exhibited, and if the amount of the sensitizer is too large, the residual ratio of the exposed portion tends to be small.

  Examples of the organic solvent include methyl cellosolve, ethyl cellosolve, butyl cellosolve, propylene glycol monomethyl ether acetate, methyl ethyl ketone, dioxane, acetone, cyclohexanone, cyclopentanone, isobutyl alcohol, isopropyl alcohol, tetrahydrofuran, dimethyl sulfoxide, and γ-butyllactone. , N-methylpyrrolidone, N, N-dimethylformamide, N, N-dimethylacetamide, bromobenzene, chlorobenzene, dibromobenzene, dichlorobenzene, bromobenzoic acid, chlorobenzoic acid and the like, and one or more of these An organic solvent mixture is used.

  The photosensitive paste is usually prepared by mixing the above-mentioned inorganic fine particles and organic components so as to have a predetermined composition, and then uniformly mixing and dispersing them with a three roller or kneader.

  Next, the photosensitive paste as described above can be applied and dried, and after exposure, development and baking can be performed to form a partition pattern.

  As a method for applying the photosensitive paste in the series of partition forming steps, a screen printing method, a bar coater, a roll coater, a die coater, a blade coater, or the like can be used. The coating thickness can be adjusted by selecting the number of coatings, screen mesh, and paste viscosity.

  The drying after the application can be performed by using a ventilation oven, a hot plate, an infrared furnace, or the like.

  Next, the coating film after coating and drying is exposed through a photomask having a desired pattern.

Examples of the energy beam used in the exposure operation in the present invention include visible light, near ultraviolet light, ultraviolet light, electron beam, X-ray, and laser light. Among these, ultraviolet rays are most preferable, and as the light source, for example, a low-pressure mercury lamp, a high-pressure mercury lamp, an ultrahigh-pressure mercury lamp, a halogen lamp, or a germicidal lamp can be used. Among these, an ultrahigh pressure mercury lamp is suitable. Exposure conditions vary depending on the coating thickness, but exposure is performed for 0.1 to 10 minutes using an ultrahigh pressure mercury lamp with an output of 1 to 100 mW / cm ² .

  Here, the distance between the photomask and the coating film surface of the photosensitive paste, that is, the gap is preferably adjusted to 50 to 500 μm, more preferably 70 to 400 μm. By setting the gap to 50 μm or more, further 70 μm or more, contact between the photosensitive paste coating film and the photomask during movement of the substrate or photomask can be prevented, and destruction or contamination of both can be prevented. Moreover, moderately sharp patterning is attained by setting it as 500 micrometers or less, More preferably, it is 400 micrometers or less.

  In the present invention, the width of the top or bottom of the partition can be adjusted by adjusting the mask width during exposure in the above-described method for forming the partition.

  The development performed after the exposure is generally performed using a difference in solubility between the exposed portion and the non-exposed portion in the developer. Development can be performed by a dipping method, a spray method, a brush method, or the like.

  As the developer, a solution having a high dissolution rate of the organic component in either the exposed part or the unexposed part in the photosensitive paste is used. When a compound having an acidic group such as a carboxyl group is present in the photosensitive paste, it can be developed with an alkaline aqueous solution. As the alkaline aqueous solution, sodium hydroxide, sodium carbonate, sodium carbonate aqueous solution, calcium hydroxide aqueous solution or the like can be used. However, it is preferable to use an organic alkaline aqueous solution because an alkaline component can be easily removed during firing. As the organic alkali, a general amine compound can be used. Specific examples include tetramethylammonium hydroxide, trimethylbenzylammonium hydroxide, monoethanolamine, and diethanolamine. The concentration of the alkaline aqueous solution is usually 0.01 to 10% by weight, more preferably 0.1 to 5% by weight. If the alkali concentration is too low, the soluble portion tends not to be removed. If the alkali concentration is too high, the pattern portion tends to be peeled off or the insoluble portion tends to be corroded. The development temperature during development is preferably 20 to 50 ° C. in terms of process control.

  Next, the pattern of the partition walls (including needless to say, auxiliary partition walls) obtained by development is fired in a firing furnace. The firing atmosphere and temperature vary depending on the type of paste and substrate, but firing is performed in an atmosphere of air, nitrogen, hydrogen, or the like. As the firing furnace, a batch-type firing furnace or a roller hearth-type continuous firing furnace can be used. The firing temperature is preferably 400 to 800 ° C. In the case where the partition walls are formed directly on the glass substrate, the baking is preferably performed by holding at a temperature of 450 to 620 ° C. for 10 to 60 minutes.

  When the width of the partition wall and the auxiliary partition wall is extremely different, specifically, when the width of the auxiliary partition wall is extremely thicker than the partition wall width, the partition wall may be disconnected at the interface between the two due to the difference in firing shrinkage behavior between the partition wall and the auxiliary partition wall. Or cracks in the auxiliary partition.

  In such a case, by forming a stripe-shaped groove at the top of the auxiliary partition, the shrinkage during firing of the auxiliary partition can be alleviated, and the disconnection of the partition at the interface between the auxiliary partition and the partition can be suppressed.

  Next, phosphor layers that emit light of R (red), G (green), and B (blue) colors are formed between the barrier ribs. The phosphor layer is generally formed by applying a phosphor paste mainly composed of phosphor powder, an organic binder, and an organic solvent between predetermined partitions, drying, and firing as necessary. be able to.

  As a method of applying the phosphor paste between predetermined partition walls, a screen printing method in which a pattern is printed using a screen printing plate, a dispenser method in which the phosphor paste is discharged from the tip of a discharge nozzle, or a phosphor paste The phosphor paste of each color can be applied in a predetermined place by a method such as the photosensitive paste method using the organic component having photosensitivity as an organic binder, and any method is adopted in the present invention. Of course, the screen printing method and the dispenser method, which are excellent in economic efficiency, are preferably applied in the present invention.

  In the member for a plasma display panel of the present invention, as long as the object of the present invention is not hindered, it does not preclude providing a configuration other than the above-described dielectric layer, partition layer, and phosphor layer.

  The member for a plasma display panel according to the present invention is used together with another member prepared separately, and is manufactured as a panel module by enclosing an inert gas.

Hereinafter, the present invention will be specifically described by way of examples. However, the present invention is not limited to these examples. Novolac resin A: m-cresol / p-cresol / formaldehyde in a molar ratio of 60/40/80 under reflux in the presence of an oxalic acid catalyst. A novolak resin having a polystyrene-reduced weight average molecular weight of about 8000 obtained by reacting according to a conventional method and then fractionating, and having a polystyrene-reduced molecular weight of 6000 or less with respect to the total pattern area excluding the pattern area of unreacted cresol The area ratio is 34% and the area ratio of polystyrene equivalent molecular weight 1000 or less is 15%.

  Novolak resin B: m-cresol / p-cresol / formaldehyde at a molar ratio of 40/60/80, reacted in the presence of an oxalic acid catalyst under reflux in the usual manner, and then fractionated, in terms of polystyrene A novolak resin having a weight average molecular weight of about 8000, and in the GPC pattern, the area ratio of polystyrene equivalent molecular weight of 6000 or less to the total pattern area excluding the pattern area of unreacted cresol is 34%, and the polystyrene equivalent molecular weight of 1000 or less The ratio is 15%.

  Acrylic resin A: a copolymer of methacrylic acid and methyl methacrylate (weight average molecular weight 25,000, acid value 105).

  Acrylic resin B: Copolymer (weight average molecular weight 37,000) of tricyclodecanyl methacrylate / t-butyl methacrylate / methacrylic acid (50/20/30 in charge molar ratio).

  Photoacid generator A: ester of tetrahydroxybenzophenone and 2-diazo-1-naphthoquinone-5-sulfonic acid.

  Photoacid generator B: bis (cyclohexylsulfonyl) diazomethane.

  Photobase generator A: [[(α, α-dimethyl-3,5-dimethoxybenzyl) oxy] carbonyl] propylamine.

  Polymerization initiator: 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -1-butanone.

  Cross-linking agent: tetrapropylene glycol dimethacrylate.

  Ultraviolet absorber: Basic blue 26 (absorption maximum wavelength: 592 nm).

  Glass powder A: Boron oxide 42%, silicon oxide 10%, aluminum oxide 3%, barium oxide 20%, zinc oxide 5%, calcium oxide 2%, zirconium oxide 10%, glass transition point 462 ° C., softening The point is 493 ° C. and the refractive index is 1.70.

  Glass powder B: 25% silicon oxide, 28% boron oxide, 28% bismuth oxide, 15% barium oxide, 4% aluminum oxide, glass transition point 488 ° C., softening point 527 ° C., refractive index 1.73 .

  Glass powder C: Lithium oxide 7%, silicon oxide 22%, boron oxide 33%, zinc oxide 3%, aluminum oxide 19%, magnesium oxide 6%, barium oxide 5%, calcium oxide 5%, glass transition point 491 ° C, softening point 528 ° C, refractive index 1.59.

  Glass powder D: 40% silicon oxide, 36% aluminum oxide, 9% boron oxide, 5% barium oxide, 5% magnesium oxide, 5% calcium oxide, glass transition point 652 ° C, softening point 754 ° C, refraction The rate is 1.73.

Silver powder: average particle diameter 1.5 μm, specific surface area 0.80 m ² / g.

  Solvent: dipropylene glycol monomethyl ether acetate.

  Mix 9 parts by weight of novolak resin A, 1 part by weight of novolak resin B, 2 parts by weight of photoacid generator A and 10 parts by weight of solvent, dissolve while heating to 50 ° C., and then add 78 weight of silver powder. 2 parts by weight of glass powder A were added and kneaded using a kneader.

  The photosensitive paste thus obtained was applied on a 42-inch diagonal glass substrate by a screen printing method to obtain a film having a dry thickness of 6 μm.

Next, exposure was performed through a predetermined positive photomask (line width 50 μm, pattern pitch 230 μm) for the purpose of forming an electrode pattern for plasma display. At this time, in order to prevent the mask from being contaminated, a gap of 100 μm was provided between the mask and the coating film. Thereafter, a 0.8 wt% aqueous solution of monoethanolamine maintained at 35 ° C. is processed by developing for 60 seconds in a shower to form a striped electrode pattern on a glass substrate, and washed with water using a shower spray. went. In addition, it was possible to obtain a favorable electrode pattern when an ultraviolet ray having an exposure amount of 100 to 800 mJ / cm ² was irradiated.

  Next, the glass substrate that had been processed with the electrode pattern was dried at 80 ° C. for 15 minutes and then baked at 600 ° C. for 15 minutes to form an electrode. After firing, there was no edge curl where both ends of the pattern peeled off the substrate, and a good electrode was obtained.

  On the glass substrate on which the electrode was manufactured, 60% by weight of low melting glass powder containing 75% by weight of bismuth oxide, 10% by weight of titanium oxide powder having an average particle size of 0.3 μm, 15% by weight of ethyl cellulose, and 15% by weight of terpineol. A glass paste obtained by kneading% was applied by screen printing to a thickness of 5 μm so as to cover the address electrodes of the display portion, and then baked at 570 ° C. for 15 minutes to form a dielectric layer.

  A first photosensitive paste was applied on the dielectric layer. The photosensitive paste is composed of glass powder and an organic component containing a photosensitive component. As the glass powder, lithium oxide 10% by weight, silicon oxide 25% by weight, boron oxide 30% by weight, zinc oxide 15% by weight, aluminum oxide 5 A glass powder having an average particle diameter of 2 μm obtained by pulverizing glass having a composition consisting of 15% by weight and 15% by weight of calcium oxide was used. The organic component including the photosensitive component includes 30% by weight of an acrylic polymer containing a carboxyl group, 30% by weight of trimethylolpropane triacrylate, and 10% by weight of “Irgacure 369” (manufactured by Ciba Specialty Chemicals) as a photopolymerization initiator. %, Γ-butyrolactone 30% by weight was used.

  The photosensitive paste was prepared by mixing the glass powder and the organic component containing the photosensitive component in a weight ratio of 70:30, and then kneading them with a roll mill. Next, this photosensitive paste was applied to a thickness of 90 μm after drying using a die coater. Drying was performed in a clean oven (manufactured by Yamato Scientific Co., Ltd.).

  After drying, exposure was performed in the direction perpendicular to the address electrodes using a photomask having a stripe pattern with a pitch of 230 μm.

  After the exposure, the photosensitive paste was further applied and dried to obtain a 90 μm coating film.

  Next, it exposed in the direction parallel to an address electrode using the photomask which has a pattern.

  After exposure, development is performed in a 0.5% by weight ethanolamine aqueous solution, followed by baking at 560 ° C. for 15 minutes to form partition walls with a pitch of 230 μm and height of 130 μm, and auxiliary partitions with a pitch of 230 μm and height of 65 μm. did.

  Furthermore, red, green and blue phosphor layers were formed. The phosphor layer is prepared by preparing a phosphor paste from 90% by weight of phosphor powder and a solution (solid content: 10%) composed of ethyl cellulose and terpineol, and discharging the phosphor from the die to obtain a phosphor thickness of 30 μm after drying. It applied so that it might become. The plasma display back plate thus produced was combined with the front plate and sealed with sealing glass, and Ne gas containing Xe 5% was sealed so as to have an internal gas pressure of 66500 Pa. Further, a driving circuit was mounted to produce a PDP.

  The occurrence of false discharges and non-lights caused by charge transfer between the regions in the panel and emission of non-designated cells is defined as 170V, and visual inspection is performed to determine whether false discharges occur at this voltage. did. In the following examples and comparative examples, 100 PDPs were produced and evaluated by the number of panels in which erroneous discharge and non-lighting occurred due to charge transfer.

Example 1
Using the methods described above, by adjusting the pattern provided on the mask, and from both ends of the display area of the arrangement direction both end portions of the address electrodes of the display area as shown in FIG. 2 and 10cm regions, region (left and right the width of the address electrodes of each 43 present each) and 60 [mu] m, in the display area inside portion, and 60 [mu] m the width of Oite address electrode from the address electrodes longitudinal both ends in the realm of each 10 cm, Table示域Striped address electrodes were formed so that the address electrode width in the center was 50 μm. Next, by adjusting the pattern shape provided on the mask, a partition having a top width of 40 μm and a bottom width of 60 μm was formed to produce a plasma display back plate, and a panel was produced using this. In Example 1, the number of erroneous discharges and non-lights in one panel was small and erroneous discharges and non-lights were confirmed for three of the 100 panels.

  Note that FIG. 2 is prepared for grasping the mode according to the present embodiment. The size of the substrate and the address electrode may be greatly different, and the relationship between the sizes of the components depends on a certain reduction ratio. In addition, some of the address electrodes in each region are omitted.

Example 2
Using the methods described above, by adjusting the pattern provided on the mask, and the display area across the array direction both end portions of the display area of the address electrodes as shown in FIG. 3 and 10cm regions, region (left and right 43 in the address electrodes in the portions), 5cm from the array direction both side ends of the address electrodes of the display area, 65 .mu.m the width of the address electrodes in the longitudinal direction from both ends 5cm region of the address electrodes of the display area, and the other display area end portion the width of the address electrode is 60 [mu] m, in the display area inside portion, and 60 [mu] m the width of the address electrodes in each 10cm from the longitudinal both ends of the address electrodes, the display area longitudinal both of the inner portion of the address electrode Striped address electrodes were formed so that the width of the address electrode in the region other than the end was 50 μm. Next, by adjusting the pattern shape provided on the mask, a partition wall having a top width of 40 μm and a bottom width of 60 μm was formed, a plasma display back plate was manufactured, and a panel was manufactured using this. As a result, no erroneous discharge and unlighting were confirmed in any one of 100 sheets, and erroneous discharge and unlighting due to charge transfer could be suppressed.

  FIG. 3 is prepared for grasping the mode according to the present embodiment. The size of the substrate and the address electrode may be greatly different. It is not based on the rate, and some of the address electrodes in each region are omitted.

Example 3
In the same manner as in Example 1, the address electrodes are formed. In the formation of the partition walls, the top width is set to 50 μm in the region where the width of the address electrode is 60 μm, and the top width is set in the region where the width of the address electrode is 50 μm. A plasma display back plate was produced in the same manner as in Example 1 except that the thickness was 40 μm, and a panel was produced using this. As a result, it was not possible to confirm erroneous discharge and non-lighting in 100 panels, and it was possible to suppress erroneous discharge and non-lighting due to charge transfer.

Example 4
In the same manner as in Example 1, the address electrodes are formed. In the region where the width of the address electrode is 60 μm, the partition is formed in a region where the top width is 50 μm, the bottom width is 55 μm, and the address electrode width is 50 μm. In Example 1, a plasma display back plate was produced in the same manner as in Example 1 except that the top width was 45 μm and the bottom width was 60 μm, and a panel was produced using this. As a result, one of the 100 panels obtained could not confirm erroneous discharge and non-lighting, and erroneous discharge and non-lighting due to charge transfer could be suppressed.

Comparative Example 1
A plasma display back plate was produced in the same manner as in Example 1 except that the width of the address electrode was uniformly 50 μm, and a panel was produced using this. As a result, in 21 of 100 manufactured panels, a large number of erroneous discharges and non-lighting were confirmed at the four corners of the panel.

Comparative Example 2
The width of the address electrodes in the region of the region of 10cm from the array opposite ends of the address electrodes of the display area (each side each 43 pieces) and 40 [mu] m, also, in its inner portion, each from the longitudinal both ends of the address electrodes the width of Oite address electrodes and 40μm to realm of 10 cm, except for the longitudinally both ends than in the region of the address electrodes of the display area inside part, i.e. the display area central, the width of the address electrode in a 50μm is A plasma display back plate was produced in the same manner as in Example 1, and a panel was produced using this. In 38 out of 100 panels obtained, erroneous discharge due to charge transfer, non-lighting, etc. were confirmed. In particular, the occurrence of erroneous discharge and non-lighting was confirmed at the top and bottom and squares of the panel.

It is a figure for demonstrating a display area, a display area inner side part, a display area edge part, a display area peripheral part, and a display area center part. Only one address electrode is shown for convenience. FIG. 3 is a diagram for explaining an aspect of the first embodiment. FIG. 6 is a diagram for explaining an aspect of Example 2. It is sectional drawing of the cell of a general PDP. It is a figure for demonstrating the width | variety of the top part of a partition, and the width | variety of a bottom part.

Explanation of symbols

1: Display area 1A: Center area of display area edge 1B: Upper edge area or lower edge area of display area edge area 1C: Upper edge area or lower edge area of edge area of display area 1D: Display area central area 2: Address electrode 21: Electrode Drawing part 3: Glass substrate 4: Dielectric layer 5: Partition wall 5A: Top width of partition wall 5B: Bottom width of partition wall 6: Phosphor layer

Claims (3)

A member for a plasma display in which a plurality of address electrodes are arranged substantially in parallel on a substrate, and the width of the address electrodes located at both ends in the arrangement direction of the address electrodes in the display area is the address in the center of the display area The width of both ends of the address electrode in the longitudinal direction of the address electrode located at the center of the display area in the arrangement direction of the address electrode is larger than the average width of the address electrode at the center of the display area. Materials for plasma display panels . Oite the address electrodes in the arrangement direction both end portions of the address electrodes of the display area, the plasma of claim 1 Symbol placement towards the width in the longitudinal ends of the address electrodes is equal to or greater than the width at the central portion Display panel member . A plasma display panel, which comprises using a plasma display panel member according to claim 1 or 2.

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