WO2008150065A1

WO2008150065A1 - Composition for dielectric layer of plasma display panel and plasma display panel including the same

Info

Publication number: WO2008150065A1
Application number: PCT/KR2008/002357
Authority: WO
Inventors: Munhyuk Lim; Euntae Lee
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2007-06-04
Filing date: 2008-04-25
Publication date: 2008-12-11
Anticipated expiration: 2009-12-04
Also published as: KR100829704B1

Abstract

A composition for a dielectric layer of a plasma display panel and a plasma display panel including the same are disclosed. The composition includes a tinder including a first monomer, a second monomer, and a third monomer. The Under includes about 60 to 85 parts by weight of the first monomer, about 10 to 20 parts by weight of the second monomer, and about 5 to 20 parts by weight of the third monomer. The first monomer is a hexacrylate monomer, the second monomer is an acrylate monomer containing an alkyl group having 1 to 5 carbon atoms, and the third monomer is a monomer containing a polar group.

Description

COMPOSITION FOR DIELECTRIC LAYER OF PLASMA DISPLAY PANEL AND PLASMA DISPLAY PANEL INCLUDING

THE SAME

Technical Field

[1] An exemplary embodment relates to a composition for a delectric layer of a plasma display panel and a plasma dsplay panel includng the same. Background Art

[2] A plasma dsplay panel has the structure in whbh an upper delectric layer and a lower delectrb layer respectively formed on a front substrate and a rear substrate and barrier ribs formed between the front substrate and the rear substrate form unit discharge cell or discharge cells. Each dscharge cell is filled with an inert gas containing a main discharge gas such as neon (Ne), helium (He) or a mixture of Ne and He, and a small amount of xenon (Xe).

[3] When the plasma display panel is dscharged by a high frequency voltage, the inert gas generates vacuum ultraviolet rays, which thereby cause phosphors formed between the barrier ribs to emit light, thus dsplaying an image. Since the plasma display panel can be manufactured to be thin and large and also can provide the greatly improved image quality by the recently technological development, it has attracted attention as a next generation display device.

[4] The upper delectric layer and the lower delectric layer limit a dscharge current during the generation of a plasma discharge, maintain a glow dscharge, and perform a memory function for accumulating wall charges and a voltage reduction function. The delectric layers may be manufactured by forming a delectric formation material of a paste form obtained by mixing and kneadng a powder such as a glass powder and an addtive using a screen printing method and by firing it.

[5] The plasma display panel includng the delectric layer was manufactured by printing, drying, exposing, developing, and firing an electrode material on a substrate and forming the delectric layer on the electrode.

[6] A method of manufacturing the plasma dsplay panel capable of simplifying the formation of the delectric layer was used. More specifically, a delectric was formed on a base film and a protective film for protecting the delectric was formed to manufacture a delectric green sheet. Then, the delectric green sheet was laminated on the substrate, on which the electrode is formed, to form the dielectric layer. Disclosure of Invention Technical Problem

[7] The method of manufacturing the plasma display panel using the dielectric green sheet included printing, drying, exposing, and developing an electrode material, firing the printed electrode, laminating the dielectric green sheet to form the dielectric, and firing the dielectric. However, a long period of time was required to individually fire the electrode and the dielectric, and thus the efficiency of the mass production was reduced.

[8] Accordingly, a process for firing the electrode was excluded so as to reduce time requred to fire the electrode and the dielectric. Instead, after the dielectric was formed, the electrode and the dielectric were simultaneously fired.

[9] However, bubbles generated in the electrode were not emitted to the outside and were trapped in the process for simultaneously firing the electrode and the dielectric. This caused a reduction in the reliability of the plasma display panel, for example, an error of an electrical agnal. Technical Solution

[10] An exemplary embodiment provides a dielectric composition for a plasma display panel and a plasma display panel including the same capable of improving the manufacturing yield and the reliability.

[11] In one aspect, a composition for a dielectric layer of a plasma dsplay panel comprises a binder including a first monomer, a second monomer, and a third monomer, wherein the binder includes about 60 to 85 parts by weight of the first monomer, about 10 to 20 parts by weight of the second monomer, and about 5 to 20 parts by weight of the third monomer, wherein the first monomer is hexacrylate monomer, the second monomer is acrylate monomer containing an alkyl group having 1 to 5 carbon atoms, and the third monomer is a monomer containing a polar group.

[12] In another aspect, a method of manufacturing a plasma display panel comprises performing printing, drying, exposing, and developing processes on a substrate on which an electrode is formed, laminating a green sheet for a dielectric on the electrode, and simultaneously firing the electrode and the dielectric, wherein the dielectric includes a binder including a first monomer, a second monomer, and a third monomer, wherein the binder includes about 60 to 85 parts by weight of the first monomer, about 10 to 20 parts by weight of the second monomer, and about 5 to 20 parts by weight of the third monomer, wherein the first monomer is hexacrylate monomer, the second monomer is aery late monomer containing an alkyl group having 1 to 5 carbon atoms, and the third monomer is a monomer containing a polar group.

[13] In still another aspect, a plasma display panel comprises a front substrate, a rear substrate portioned opposite the front substrate, and a dielectric layer on at least one of the front substrate or the rear substrate, the dielectric layer including an inorganic powder, the inorganic powder including about 38 to 68 parts by weight of Bi ₂O₃, about 10 to 35 parts by weight of B ₂O₃, about 1 to 17 parts by weight of SiO ₂, and about 1 to 15 parts by weight of Al ₂O₃.

Advantageous Effects

[14] As described above, in the plasma dsplay panel according to the exemplary embodiment, the manufacturing time can be reduced by simultaneously firing the electrode and the dielectric. Further, because there is no bubble trapped on the electrode, the plasma display panel with the excellent reliability can be provided Brief Description of the Drawings

[15] FIG. 1 shows a plasma display panel according to an exemplary embodiment;

[16] FIG. 2 is a flow chart for explaining a method of manufacturing the plasma display panel according to the exemplary embodiment;

[17] FIGs. 3 to 14 are plane views of plasma dsplay panels according to experimental examples and comparative examples; and

[18] FIGs. 15 to 20 are cross-sectional views of plasma display panels according to an experimental example 1 and a comparative example 1. Best Mode for Carrying Out the Invention

[19] FIG. 1 shows a plasma display panel according to an exemplary embodiment.

[20] As shown in FIG. 1, the plasma display panel according to the exemplary embodiment includes a front panel 100 and a rear panel 110 which are positioned parallel to each other at a given distance therebetween. The front panel 100 includes a front substrate 101 on whfch a scan electrode 102 and a sustain electrode 103 are formed. The rear panel 110 includes a rear substrate 111 on which an address electrode 113 is formed to intersect the scan electrode 102 and the sustain electrode 103.

[21] The scan electrode 102 and the sustain electrode 103 generate a mutual discharge therebetween in a dscharge cell and maintain light-emisaons of discharge cells. More specifically, the scan electrode 102 and the sustain electrode 103 each include transparent electrodes 102a and 103a made of a transparent indum-tin-oxide (ITO) material and bus electrodes 102b and 103b made of an opaque metal material.

[22] The scan electrode 102 and the sustain electrode 103 are covered with one or more upper dielectric layers 104 for limiting a discharge current and providing insulation between the scan electrode 102 and the sustain electrode 103. A protective layer 105 with a deposit of MgO is positioned on the upper dielectric layer 104 to facilitate discharge conditions.

[23] The rear panel 110 includes a plurality of stripe-type or well-type barrier ribs 112 for partitioning a plurality of discharge spaces, ie., a plurality of discharge cells.

[24] Red (R), green (Q, and blue (B) phosphor layers 114 for emitting viable lght for an image display during the generation of an address discharge are positioned inside the discharge cells partitioned by the barrier ribs 112.

[25] A lower dielectric layer 115 is formed between the address electrode 113 and the phosphor layer 114.

[26] Although the upper dielectric layer 104 and the lower dielectric layer 115 are formed on the front substrate 101 and the rear substrate 111, respectively, in the exemplary embodiment, the exemplary embodiment is not limited thereto. On the contrary, the upper dielectric layer 104 and the lower dielectric layer 115 may be formed on the rear substrate 111 and the front substrate 101, respectively.

[27] FIG. 1 has shown and described only an example of the plasma display panel, and thus the exemplary embodiment is not limited to the structure of the plasma display panel shown in FIG. 1. For instance, the plasma display panel shown in FIG. 1 includes the scan electrode 102, the sustain electrode 103, and the address electrode 113, but at least one of the scan electrode 102, the sustain electrode 103, or the address electrode 113 may be omitted.

[28] Although FIG. 1 has shown the case where the barrier ribs 112 are formed on the rear substrate 111, the barrier ribs 112 may be formed on the front substrate 101. The barrier ribs 112 may be formed on both the front substrate 101 and the rear substrate 111.

[29] In the plasma display panel according to the exemplary embodiment, the upper dielectric layer 104 and the lower dielectric layer 115 are formed on the front substrate 101 and the rear substrate 111, respectively, and the dielectric layers 104 and 115 include a binder including a first monomer, a second monomer, and a third monomer, wherein the binder includes about 60 to 85 parts by weight of the first monomer, about 10 to 20 parts by weight of the second monomer, and about 5 to 20 parts by weight of the third monomer, wherein the first monomer is hexacrylate monomer, the second monomer is aery late monomer containing an alkyl group having 1 to 5 carbon atoms, and the third monomer is a monomer containing a polar group. The plasma display panel according to the exemplary embodiment may be variously changed except the above-described conditions.

[30] The composition for the dielectric layer of the plasma display panel according to the exemplary embodiment will be below described in detail.

[31] The composition for the dielectric layer (Le., the dielectric composition) of the plasma display panel according to the exemplary embodiment may include an inorganic powder, a binder, a plastidzer, and a solvent so as to maintain a glow discharge and accumulate wall charges.

[32] The inorganic powder may include about 38 to 68 parts by weight of Bi ₂O₃, about 10 to 35 parts by weight of B ₂O₃, about 1 to 17 parts by weight of SiO ₂, and about 1 to 15 parts by weight of Al ₂O₃. The inorganic powder may further include at least one selected from the group consisting of BaO, CaO and ZnO. BaO content may be more than 0 and equal to or less than 18 parts by weight, CaO content may be more than 0 and equal to or less than 5 parts by weight, and ZnO content may be more than 0 and equal to or less than 12 parts by weight.

[33] The binder may include a first monomer, a second monomer, and a third monomer.

More specifically, the binder may include about 60 to 85 parts by weight of the first monomer, about 10 to 20 parts by weght of the second monomer, and about 5 to 20 parts by weight of the third monomer based on 100 parts by weight of the binder.

[34] The first monomer may use hexacrylate monomer. For instance, the hexacrylate monomer may be hexamethacrylate or 2-ethyl hexamethacrylate.

[35] The second monomer may use acrylate monomer containing an alkyl group having 1 to 5 carbon atoms. For instance, the acrylate monomer may be at least one selected from the group consisting of methacrylate, iso-butyl methacrylate, normal-butyl methacrylate, methyl methacrylate, and ethyl methacrylate.

[36] The third monomer may use a monomer containing a polar group. For instance, the monomer containing the polar group may be at least one selected from the group consisting of methacrylate, acrylate, 2-hydroxy ethyl methacrylate, and methacrylic add.

[37] The plastidzer can adjust a dry speed of the dielectric layer and give the flexibility to a dried layer. The plastidzer may use butylbenzyl phthalate, doctyl phthalate, cfcooctyl phthalate, dfcapryl phthalate, dibutyl phthalate, and a combination thereof.

[38] The solvent can melt the binder and a photoiniiator. The solvent may use a solvent with a boiling point higher than 150 ? obtained by mixing a cross linking agent with additives. For instance, the solvent may use at least one selected from the group conasting of ethyl carbitol, butyl carbitol, ethyl carbitol acetate, butyl carbitol acetate, texanol, terpene oil, dpropylene glycol methyl ether, dpropylene glycol ethyl ether, dipropylene glycol monomethyl ether acetate, cellosolve acetate, butyl cellosolve acetate, and tripropylene glycol.

[39] A content of the solvent may depend on a content of the binder. More specifically, the dielectric composition may include about 100 to 500 parts by weight of the solvent based on 100 parts by weight of the binder.

[40] The delectrb composition for the plasma display panel accordng to the exemplary embodment may further include an addtive. The addtive may include an antioxidant, an ultraviolet ray absorbent for improving resolution, a sensitizer for improving sensitivity, a dspersing agent for improving dspersibility.

[41] The delectrb compoation for the plasma display panel accordng to the exemplary embodment may further include a labeling agent for improving the planarization of a layer during a printing process. The labeling agent may include a polymerization prohibiting agent for improving the conservation of a coating composition such as phosphate, ester phosphate, and carboxylic add containing compound, polyester degeneration dmethyl polysiloxane, polyhydroxy carboxylic acid amide, albone-based polyacrylate copolymer, or fluorine-based paraffin compound.

[42] The above-described delectrb compoation for the plasma dsplay panel accordng to the exemplary embodment and a method of manufacturing the plasma display panel will be described below.

[43] The delectrb compoation for the plasma display panel accordng to the exemplary embodment can be manufactured through the following manufacturing method. More specifically, a predetermined amount of inorganb powder is uniformly mixed. Then, the mixture is melted in a platinum crucible at a temperature of 1,000 to 1,500 ⁰C for 10 to 60 minutes, and thus can uniformly mixed in a melting state.

[44] The melted mixture is rapidly cooled and then ground. The rapid cooling process may be performed in a dry or wet manner, and water may be used in the wet manner. After the rapid cooling process, the grindng process may be performed in a dry or wet manner, and water or an organb solvent may be used in the wet grindng process.

[45] The ground inorganb powder, ie., the delectrb powder is filtered, dried, and dsin- tegrated to manufacture a delectrb powder having a small particle dameter, for example, a particle dameter of 0.1 to 10 μm. Subsequently, the delectrb powder, the Under, the plastϋzer, and the solvent are mixed in a predetermined rate and knead to form a dielectric paste.

[46] The dielectric composition according to the exemplary embodiment can be formed by forming the manufactured dielectrb paste in the form of a green sheet. More specifically, the dielectric paste is coated on a base film such as polyester, and then a protective film is formed on the coated dielectric paste to form a dielectric green sheet.

[47] FIG. 2 is a flow chart for explaining a method of manufacturing the plasma dsplay panel according to the exemplary embodiment.

[48] As shown in FIG. 2, an electrode printing step S 1 is to form an electrode on a substrate. More specifically, an electrode forming paste is formed by dispersing a conductive material, a glass frit, a binder, a plastidzer, and a photoinitiator in a solvent and coated on the substrate to form a photosenative conductive layer. A coating method may use a general wet coating method, for example, a screen printing method, a coating method using a roll coater, a coating method uang a braid coater, a coating method using a slit coater, a coating method uang a curtain coater, a coating method uang a wire coater.

[49] An electrode drying step S2 is to dry the printed photosenative conductive layer on the substrate. A drying process may be performed at a temperature of 50 to 150 ⁰C for 1 to 15 minutes.

[50] In an electrode exposing process S3, a photomask having a predetermined pattern is formed on the surface of the dried photosenative conducive layer on the substrate, and radiation is selectively applied to the photosenative conductive layer through the photomask to expose to the photosenative conductive layer. Hence, a latent image of the pattern is formed on the photosenative conductive layer. The exposing process may be performed uang at least one selected from the group conasting of viable light, ultraviolet rays, far ultraviolet rays, electron rays, X rays through a general exposing apparatus.

[51] In an electrode developing step S4, the exposed photosenative conductive layer on the substrate is developed using an alkali developer to remove the non-exposed photosensitive conductive layer except the electrode pattern. Hence, an electrode pattern is formed on the substrate.

[52] The alkali developer may use an aqueous solution including a base. The base may include at least one selected from the group conasting of an inorganic alkaline compound such as lithium hydroxide, sodium hydroxide, potasaum hydroxide, sodium hydroxide phosphate, ammonium dihydrogen phosphate, sodium dhydrogen phosphate, potassium Aydrogen phosphate and ammonia or an organic alkaline compound such as tetramethyl ammonium hydroxide, trimethyl hydroxyl ethyl ammonium hydroxide, monomethyl amine and dimethyl amine.

[53] The developing process may be performed using a dgestion method, a shaking method, a shower method, a spray method, a paddle method, and so forth. In the developing process, a developing time and a developing temperature may be adjusted depending on a kind, a composition, and a concentration of the developer.

[54] A dielectric forming step S5 is to form a dielectric on the electrode pattern on the substrate using the above-described dielectric green sheet through a laminating method. More specifically, a protective film of the dielectric green sheet is removed, and then the dielectric is coated on the electrode pattern using a laminating apparatus. In the dielectric forming step S 5, a manufacturing process can be simple and the manufacturing time can be reduced.

[55] An electrode and dielectric firing step S6 is to simultaneously remove an organic material from the electrode and the dielectric. The firing process may be performed in an air at a temperature of 400 to 600 ⁰C for 10 minutes to 3 hours similar to a general firing process.

[56] Accordingly, the method of manufacturing the plasma display panel according to the exemplary embodiment simultaneously fires the electrode and the dielectric after the dielectric formation without the related art electrode firing process, and thus can reduce the manufacturing time. Mode for the Invention

[57] Various experimental examples of a method of manufacturing the dielectric layer of the plasma display panel will be described below. The following experimental examples are only one example of the exemplary embodiment, and thus the exemplary embodiment is not limited thereto.

[58] Experimental example 1>

[59] Bi₂O₃ of 68g, B₂O₃ of 1Og, SiO₂ of 7g, and Al₂O₃ of 15g were mixed with one another, and the mixture was melted in a furnace at 1 ,200 ⁰C. The melted mixture was dried, rapidly cooled, and then ground to manufacture a dielectric powder.

[60] 2-ethyl hexamethacrylate of 17.82g as a first monomer, iso-butyl methacrylate of

3.82g as a second monomer, and 2-hydroxy ethyl methacrylate of 3.82g as a third monomer were mixed with one another to form a binder of 25.46g.

[61] Dioctyl phthalate of 1.41g as a plastϋzer, phosphate of Ig and dimethyl poly- siloxane of 0.22g as an additive, ethyl carbitol of 11.15g as a solvent were prepared, and then were mixed with the manufactured dielectric powder of 60.76g, the hinder of 25.46g to manufacture a dielectrb paste.

[62] The manufactured dielectric paste was coated on a polyester base film, and then a protective film was formed to manufacture a dielectric green sheet. Next, the dielectric green sheet was laminated on a rear substrate on whth an address electrode was formed, and then fired to manufacture a dielectric layer.

[63] Experimental example 2>

[64] A dielectric layer of the experimental example 2 was manufactured under the same conditions as the above experimental example 1 , except a compoation of a binder. More specifically, 2-ethyl hexamethacrylate of 15.28g as a first monomer, iso-butyl methacrylate of 5.09g as a second monomer, and 2-hydroxy ethyl methacrylate of 5.09g as a third monomer were mixed with one another to form a binder of 25.46g.

[65] Experimental example 3>

[66] A dielectric layer of the experimental example 3 was manufactured under the same conditions as the above experimental example 1, except a compoation of a binder. More specifically, 2-ethyl hexamethacrylate of 18.33g as a first monomer, iso-butyl methacrylate of 4.58g as a second monomer, and 2-hydroxy ethyl methacrylate of 2.55g as a third monomer were mixed with one another to form a binder of 25.46g.

[67] Experimental example 4>

[68] A dielectric layer of the experimental example 4 was manufactured under the same conditions as the above experimental example 1 , except a compoation of a binder. More specifically, 2-ethyl hexamethacrylate of 16.80g as a first monomer, iso-butyl methacrylate of 4.84g as a second monomer, and 2-hydroxy ethyl methacrylate of 3.82g as a third monomer were mixed with one another to form a binder of 25.46g.

[69] Experimental example 5>

[70] A dielectric layer of the experimental example 5 was manufactured under the same conditions as the above experimental example 1, except a compoation of a binder. More specifically, 2-ethyl hexamethacrylate of 18.59g as a first monomer, iso-butyl methacrylate of 3.06g as a second monomer, and 2-hydroxy ethyl methacrylate of 3.82g as a third monomer were mixed with one another to form a binder of 25.46g.

[71] Experimental example 6>

[72] A dielectric layer of the experimental example 6 was manufactured under the same conditions as the above experimental example 1 , except a compoation of a binder. More specifically, 2-ethyl hexamethacrylate of 21.64g as a first monomer, iso-butyl methacrylate of 2.55g as a second monomer, and 2-hydroxy ethyl methacrylate of 1.27g as a third monomer were mixed with one another to form a Under of 25.46g.

[73] <Comparative example 1>

[74] A dielectric layer of the comparative example 1 was manufactured under the same conditions as the above experimental example 1 , except a composition of a binder. More specifically, 2-ethyl hexamethacrylate of 23.93g as a first monomer, iso-butyl methacrylate of 1.27g as a second monomer, and 2-hydroxy ethyl methacrylate of 0.25g as a third monomer were mixed with one another to form a binder of 25.46g.

[75] <Comparative example 2>

[76] A dielectric layer of the comparative example 2 was manufactured under the same conditions as the above experimental example 1 , except a composition of a binder. More specifically, 2-ethyl hexamethacrylate of 16.80g as a first monomer, iso-butyl methacrylate of 6.11g as a second monomer, and 2-hydroxy ethyl methacrylate of 2.55g as a third monomer were mixed with one another to form a binder of 25.46g.

[77] <Comparative example 3>

[78] A dielectric layer of the comparative example 3 was manufactured under the same conditions as the above experimental example 1 , except a composition of a binder. More specifically, 2-ethyl hexamethacrylate of 17.57g as a first monomer, iso-butyl methacrylate of 7.64g as a second monomer, and 2-hydroxy ethyl methacrylate of 0.25g as a third monomer were mixed with one another to form a binder of 25.46g.

[79] <Comparative example 4>

[80] A dielectric layer of the comparative example 4 was manufactured under the same conditions as the above experimental example 1 , except a composition of a binder. More specifically, 2-ethyl hexamethacrylate of 17.82g as a first monomer, iso-butyl methacrylate of 6.11g as a second monomer, and 2-hydroxy ethyl methacrylate of 1.53g as a third monomer were mixed with one another to form a binder of 25.46g.

[81] <Comparative example 5>

[82] A dielectric layer of the comparative example 5 was manufactured under the same conditions as the above experimental example 1 , except a composition of a binder. More specifically, 2-ethyl hexamethacrylate of 19.1Og as a first monomer, iso-butyl methacrylate of 1.27g as a second monomer, and 2-hydroxy ethyl methacrylate of 5.09g as a third monomer were mixed with one another to form a binder of 25.46g.

[83] <Comparative example 6>

[84] A dielectric layer of the comparative example 6 was manufactured under the same conditions as the above experimental example 1 , except a composition of a binder. More specifically, 2-ethyl hexamethacrylate of 13.75g as a first monomer, iso-butyl methacrylate of 7.64g as a second monomer, and 2-hydroxy ethyl methacrylate of 4.07g as a third monomer were mixed with one another to form a tinder of 25.46g.

[85] In each of plasma display panels manufactured according to the experimental examples 1 to 6 and the comparative examples 1 to 6, bubbles of an electrode were measured, and the measuring result was indcated in the following Table 1 and FIGs. 3 to 14.

[86] Table 1

[Table 1] [Table ]

[87] The above Table 1 and FIGs. 3 to 14 show whether the bubbles were trapped or not on the electrode when the electrode and the dielectric were smultaneously fired after the electrode and the dielectric were formed.

[88] More spedtbally, in the experimental examples 1 to 6 shown in FIGs. 3 to 8, because the first monomer was 60 to 85 parts by weight, the second monomer was 10 to 20 parts by weight, and the third monomer was 5 to 20 parts by weght based on 100 parts by weight of the binder, there was no bubble trapped on the electrode. However, in the comparative examples 1 to 6 shown in FIGs. 9 to 14, there were bubbles trapped on the electrode.

[89] FIGs. 15 to 20 are cross-sectional views of plasma display panels according to the experimental example 1 and the comparative example 1.

[90] While bubbles and insulation breakdown appear in FIGs. 15 to 17 showing the comparative example 1, there are no bubble and insulation breakdown in FIGs. 18 to 20 showing the experimental example 1.

[91] In other words, since the dielectric composition for the plasma display panel according to the exemplary embodment includes the first monomer of 60 to 85 parts by weight, the second monomer of 10 to 20 parts by weight, and the third monomer of 5 to 20 parts by weight based on 100 parts by weight of the binder, there is no bubble trapped on the electrode when the electrode and the dielectric are simultaneously fired after the electrode and the dielectric are formed. Therefore, an error of electrical sgnals does not occur. The plasma display panel with the excellent reliability can be provided

[92] As described above, in the plasma dsplay panel according to the exemplary embodiment, the manufacturing time can be reduced by amultaneously firing the electrode and the dielectric. Further, because there is no bubble trapped on the electrode, the plasma display panel with the excellent reliability can be provided

[93] The foregoing embodiments and advantages are merely exemplary and are not to be construed as limiting the present invention. The present teaching can be readily applied to other types of apparatuses. The description of the foregoing embodiments is intended to be illustrative, and not to limit the scope of the claims. Many alternatives, modifications, and variations will be apparent to those skilled in the art.

[94]

[95]

Claims

[1] A composition for a dielectric layer of a plasma display panel compriang a tinder including a first monomer, a second monomer, and a third monomer, wherein the binder includes about 60 to 85 parts by weight of the first monomer, about 10 to 20 parts by weight of the second monomer, and about 5 to 20 parts by weight of the third monomer, wherein the first monomer is hexacrylate monomer, the second monomer is acrylate monomer containing an alkyl group having 1 to 5 carbon atoms, and the third monomer is a monomer containing a polar group.

[2] The composition of claim 1 , wherein the hexacrylate monomer includes hexa- methacrylate or 2-ethyl hexamethacrylate.

[3] The composition of claim 1, wherein the acrylate monomer includes iso-butyl methacrylate, normal-butyl methacrylate, methyl methacrylate, or ethyl methacrylate.

[4] The composition of claim 1 , wherein the monomer containing the polar group includes 2-hydroxy ethyl methacrylate or methacrylc acid.

[5] The composition of claim 1, further compriang an inorganic powder, the inorganic powder including about 38 to 68 parts by weight of Bi ₂O₃, about 10 to 35 parts by weight of B ₂O₃, about 1 to 17 parts by weight of SiO ₂, and about 1 to 15 parts by weght of Al ₂O₃.

[6] The composition of claim 5, wherein the inorganic powder further includes at least one selected from the group consisting of BaO, CaO, and ZnO, wherein BaO content is more than 0 and equal to or less than 18 parts by weight, CaO content is more than 0 and equal to or less than 5 parts by weght, and ZnO content is more than 0 and equal to or less than 12 parts by weight.

[7] A method of manufacturing a plasma display panel comprising: performing printing, drying, exposing, and developing processes on a substrate on whbh an electrode is formed; laminating a green sheet for a dielectric on the electrode; and simultaneously firing the electrode and the dielectric, wherein the dielectric includes a binder including a first monomer, a second monomer, and a third monomer, wherein the binder includes about 60 to 85 parts by weight of the first monomer, about 10 to 20 parts by weight of the second monomer, and about 5 to 20 parts by weight of the third monomer, wherein the first monomer is hexacrylate monomer, the second monomer is aery late monomer containing an alkyl group having 1 to 5 carbon atoms, and the third monomer is a monomer containing a polar group.

[8] The method of claim 7, wherein the hexacrylate monomer includes hexa- methacrylate or 2-ethyl hexamethacrylate.

[9] The method of claim 7, wherein the aery late monomer includes iso-butyl methacrylate, normal-butyl methacrylate, methyl methacrylate, or ethyl methacrylate.

[10] The method of claim 7, wherein the monomer containing the polar group includes 2-hydroxy ethyl methacrylate or methacrylc acid.

[11] The method of claim 7, the dielectric include an inorganic powder including about 38 to 68 parts by weight of Bi ₂O₃, about 10 to 35 parts by weight of B ₂O₃, about 1 to 17 parts by weight of SiO ₂, and about 1 to 15 parts by weight of Al ₂O₃.

[12] The method of claim 11, wherein the inorganic powder further includes at least one selected from the group consisting of BaO, CaO, and ZnO, wherein BaO content is more than 0 and equal to or less than 18 parts by weight, CaO content is more than 0 and equal to or less than 5 parts by weght, and ZnO content is more than 0 and equal to or less than 12 parts by weight.

[13] A plasma display panel comprising : a front substrate; a rear substrate positioned opposite the front substrate; and a dielectric layer on at least one of the front substrate or the rear substrate, the dielectrb layer including an inorganic powder, the inorganic powder including: about 38 to 68 parts by weight of Bi ₂O₃; about 10 to 35 parts by weight of B ₂O₃; about 1 to 17 parts by weight of SiO ₂; and about 1 to 15 parts by weight of Al ₂O₃.

[14] The method of claim 13, wherein the inorganic powder further includes at least one selected from the group consisting of BaO, CaO, and ZnO, wherein BaO content is more than 0 and equal to or less than 18 parts by weight, CaO content is more than 0 and equal to or less than 5 parts by weght, and ZnO content is more than O and equal to or less than 12 parts by weight.