JP2007188763A - Plasma display panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plasma display panel in which a short-circuiting between leading out wires from data electrodes due to attachment of contaminant, or migration caused by electric field concentration, hardly occurs, and a circumference space on a rear substrate is reduced. <P>SOLUTION: The plasma display panel includes: a front substrate on which display electrodes are formed; and a rear substrate 3 on which a plurality of data electrodes 11 intersecting with the display electrodes are arranged by a prescribed pitch. In the plasma display panel, at ends of the rear substrate 3, there are provided: data electrode terminals 30 arranged by a pitch narrower than that of the data electrodes 11, which electrically connect the data electrodes 11 with external terminals, respectively; and the leading out wires 25 which connect the data electrodes 11 with the data electrode terminals 30, respectively. Sections connected to the data electrode terminals 30 respectively of the leading out wires 25 have curvilinear forms 32. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a plasma display panel used for an image display device or the like.

  A typical AC surface discharge panel as a plasma display panel (hereinafter abbreviated as “panel”) has a front substrate on which a plurality of display electrode pairs are arranged and a rear substrate on which a plurality of data electrodes are arranged facing each other. In the meantime, a plurality of discharge cells are formed. The discharge cell is filled with a gas that emits ultraviolet rays by discharge, and the phosphor layer emits light upon receiving the ultraviolet rays to display an image.

  FIG. 7A is a diagram showing a configuration of data electrodes 72 arranged on a rear substrate 71 of a conventional panel. An image display area 73 in which a plurality of data electrodes 72 are arranged is formed on the back substrate 71. A plurality of terminal portions 74 are provided on the upper long side of the outer peripheral portion on the back substrate 71. The terminal portion 74 is provided with a data electrode terminal 76 formed to the vicinity of the end surface of the back substrate 71 so that a voltage can be applied to the data electrode 72 from the outside. Then, the data electrode 72 and the data electrode terminal 76 are connected by the lead wire 77. A flexible printed wiring board (hereinafter abbreviated as “FPC”) 75 is pressure-bonded to each of the terminal portions 74, and a voltage is applied to the data electrode 72 from the outside through this. In order to crimp the FPC 75, a margin is required, and the width of the terminal portion 74 is narrower than the width of the FPC 75. Therefore, the pitch of the data electrode terminals 76 is designed to be narrower than the pitch of the data electrodes 72.

  FIG. 7B is a diagram showing details of the lead-out line 77 of the conventional panel. The lead line 77 is formed in a straight line shape, and includes a connection part 78 to which the data electrode 72 and the data electrode terminal 76 are connected. Therefore, in order to match the pitch between the data electrode 72 and the data electrode terminal 76, the lead line 77 is bent so as to be narrowed down from the data electrode 72 and connected to the data electrode terminal 76. As shown in the figure, since the lead line 77 is bent and connected to the data electrode terminal 76 in the connection portion 78, the line width and the line width of the lead line 77 are the line width and the line width of the data electrode terminal 76, respectively. The connection portion 78 has a corner that is narrower than the space width.

  As a method of forming the data electrode 72, a method of forming a conductive paste made of Ag or the like by screen printing, or a method of forming a film of an electrode material on the back substrate 71 and using a photolithography method. Is used. When the number of data electrodes 72 increases and the line width and the line width decrease, the lead lines 77 of the data electrodes 72 are disconnected depending on conditions such as the accuracy of the screen and mask for forming the electrodes. And short circuit between wires is likely to occur. Further, if the connecting portion 78 between the data electrode terminal 76 and the lead-out line 77 has a corner, there is dust during electrode formation because the organic material for fixing the electrode material such as Ag or glass cannot be completely dissolved. It adheres to the corner portion, and the lead wire 77 is easily short-circuited.

In order to solve such a problem, for example, as shown in FIG. 8 showing the details of the vicinity of the data electrode terminal portion 76 of the conventional panel, the lead lines 79 of the data electrode 72 have two or more right-angled bent portions. A method of forming a crank pattern is disclosed. By providing the two crank-shaped patterns after extending the data electrode 72 in a straight line shape, the line width and the line width equal to or larger than the line width and the line width of the data electrode terminal portion 76 also in the lead-out line 79 (For example, refer to Patent Document 1).
JP 2001-283737 A

  However, the demand for panel resolution is increasing and the resolution is getting higher. A panel for high-definition television broadcasting is required to have a higher resolution than a panel for VGA (Video Graphics Array) display. In an example of a panel of 50 inches or more, the line width of the data electrode 72 is 100 μm and the line width is 150 μm. The data electrode terminal 76 has a line width of 80 μm and a line-to-line width of 135 μm. Further, it is assumed that even a panel having a smaller size can achieve higher accuracy. In this case, the line width of the data electrode terminal 76 is assumed to be narrower than 80 μm. When the line width of the lead lines 79 is narrowed, a larger electric field is generated by the voltage applied to the lead lines 79. Since the time required for dielectric breakdown due to migration becomes shorter as the electric field becomes larger, it is preferable that the width between the lead lines 79 is wider.

  Further, in the method of forming the lead wire 79 into a crank-shaped pattern having two or more right-angled bent portions, the line width of the data electrode terminal 76 is used to connect the data electrode 72 and the data electrode terminal 76 with the lead wire 79. And a space obtained by multiplying the sum of the line widths by half the number of data electrode terminals 76. For example, since about 400 data electrode terminals 76 are connected to one FPC 75, the space for forming the lead line 79 between the data electrode 72 and the data electrode terminal 76 is about 40 mm. Therefore, a large space for forming the lead lines 79 is required on the outer peripheral portion on the back substrate 71.

  As described above, in the high-definition panel, the line width and the line width of the lead lines 79 are extremely narrow near the terminal portion 76, and the lead lines 79 are likely to be disconnected or short-circuited. Further, if there is a corner portion close to a right angle to the lead-out line 79, a short circuit due to adhesion of dust generated during electrode formation or migration due to electric field concentration is likely to occur, and a large space is required on the outer peripheral portion on the back substrate 71. It had the problem that.

  The present invention solves such a conventional problem, and even in a high-definition panel, a short-circuit of a lead wire of a data electrode due to adhesion of dust or the like and migration due to electric field concentration hardly occur and It aims at providing the panel which can make the space of an outer peripheral part small.

  In order to solve the above problems, a panel of the present invention is a plasma display panel comprising a front substrate on which display electrodes are formed, and a rear substrate having a plurality of data electrodes that intersect with the display electrodes and are arranged at a predetermined pitch. In addition, at the end of the back substrate, the data electrodes and the external terminals are electrically connected to each other, the data electrode terminals arranged at a pitch narrower than the pitch of the data electrodes, the respective data electrodes, and the respective data electrode terminals And a portion connected to the data electrode terminal of the lead-out line has a curved portion.

  With such a configuration, even in a high-definition panel, since there is no corner at the connection between the lead wire and the data electrode terminal, migration of the data electrode lead wire due to dust adhesion or the like due to electric field concentration It is possible to provide a panel that is less likely to occur and can reduce the outer peripheral space on the back substrate.

  Furthermore, the curve of the curved portion of the lead line of the panel of the present invention may be formed by an arc having a center on the extension line of the end portion of the data electrode terminal. With such a configuration, even in a high-definition panel, there is no corner at the connection between the lead-out line and the data electrode terminal, and the line width and inter-line width equal to or greater than the data electrode terminal with the strictest dimensional tolerance. Therefore, it is possible to provide a panel that can hardly cause a short circuit of a lead wire of a data electrode due to adhesion of dust or the like and migration due to electric field concentration and can reduce a space on an outer peripheral portion on a back substrate.

  Furthermore, the portion of the panel of the present invention connected to the data electrode of the lead line may be formed by a straight line in contact with the curve. With such a configuration, the lead-out line can be configured to have a line width and an inter-line width equal to or greater than that of the data electrode terminal by a smooth and continuous curve and a straight line. Since the line width and the line width of the data electrodes are wider than the data electrode terminals, it is possible to easily design a pattern by forming the lead lines in a linear shape. Therefore, even in a high-definition panel, there is an advantage that it is difficult to cause a short circuit of a lead wire of a data electrode due to adhesion of dust or the like and a migration due to electric field concentration, and a space on the outer peripheral portion on the back substrate can be reduced.

  According to the present invention, even if it is a high-definition panel, it is difficult to cause a migration due to a short circuit of a lead wire of a data electrode due to dust adhesion or an electric field concentration, and a panel capable of reducing the outer peripheral space on the back substrate is provided. be able to.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is an exploded perspective view of a panel 1 according to the first embodiment of the present invention. In the panel 1, a plurality of discharge cells are formed between a front substrate 2 and a rear substrate 3 that are arranged to face each other. On the front substrate 2, a plurality of display electrode pairs 18 including scan electrodes 16 and sustain electrodes 17 covered with the dielectric layer 6 and the protective layer 7 are arranged in parallel. The scanning electrode 16 includes a transparent electrode 12 that transmits visible light and a bus electrode 13 that plays a role of reducing the resistance of the electrode. Similarly, the sustain electrode 17 includes a transparent electrode 14 and a bus electrode 15. On the other hand, on the back substrate 3, a plurality of data electrodes 11 covered with the base dielectric layer 10 are arranged in parallel to each other in a direction orthogonal to the display electrode pair 18. A partition wall 8 is provided between adjacent data electrodes 11 to partition the discharge space. A phosphor layer 9 is formed on the base dielectric layer 10 and on the side surfaces of the barrier ribs 8. In the discharge cell, for example, neon or xenon is enclosed as a gas that emits ultraviolet rays by discharge. Then, the phosphor layer 9 is excited by the ultraviolet rays generated by the discharge in the discharge cell, and generates visible light and displays an image.

  As described above, in the panel 1, the front substrate 2 and the rear substrate 3 are arranged to face each other, and a discharge space is formed in the gap therebetween. An image display area is composed of the discharge cells formed in the discharge space. Further, the outer peripheral portions of the front substrate 2 and the rear substrate 3 are sealed with a sealing material such as glass frit. When the electrode terminals are drawn out from the front substrate 2 and the rear substrate 3, the electrodes formed up to the vicinity of the end surfaces of the front substrate 2 and the rear substrate 3 so that a voltage can be applied to the display electrode pair 18 and the data electrode 11 from the outside. This is done by providing a terminal and connecting to an external circuit through this electrode terminal. Further, the connection between the electrode terminal and the external circuit is performed by crimping the FPC to the electrode terminal.

  FIG. 2 is a diagram showing the configuration of the data electrodes 11 arranged on the rear substrate 3 of the panel 1 in the first embodiment of the present invention. In FIG. 2, the image display area 19 is surrounded by a broken line. In the image display area 19, a plurality of data electrodes 11 are formed side by side. In the high-definition panel in the present embodiment, the number of data electrodes 11 is 5760. The line width is designed to be 100 μm and the line width is designed to be 150 μm.

  A plurality of data electrode terminals 30 are divided into a plurality of terminal portions 26 on the upper long side of the outer peripheral portion on the back substrate 3. One FPC 27 is crimped to one terminal portion 26. In the present embodiment, since 15 FPCs 27 are used, 384 data electrode terminals 30 are connected to one FPC 27. In order to crimp the FPC 27, a margin is required, and the width of the terminal portion 26 is narrower than the width of the FPC 27. Therefore, the line width and the line width of the data electrode terminal 30 are designed to be narrower than the line width and the line width of the data electrode 11. In this embodiment, the data electrode terminal 30 is designed to have a line width of 80 μm and a line width of 135 μm.

  The lead line 25 connects the data electrode 11 and the data electrode terminal 30. The 384 data electrodes 11 are narrowed down to one terminal portion 26.

  FIG. 3 is a diagram showing details of the lead lines 25 of the panel 1 according to the first embodiment of the present invention. At the end of the back substrate 3, the data electrodes 11 and the external terminals are electrically connected to each other, the data electrode terminals 30 arranged at a pitch narrower than the pitch of the data electrodes 11, the respective data electrodes 11 and the respective data A lead line 25 for connecting the electrode terminal 30 is formed. In the present embodiment, the lead lines 25 are formed symmetrically with respect to the symmetry axis 33.

  The lead wire 25 has a curved portion 32 in which a portion connected to the data electrode terminal 30 is formed in a curved shape, and a portion connected to the data electrode 11 is formed in a linear shape in contact with the curved portion 32. A straight portion 31 is provided.

  The curved portion 32 is connected to the data electrode terminal 30 with a curvature, and is formed in a smooth curved shape. In the connection portion 34 with the data electrode terminal 30, the line width and the line width of the curved portion 32 are formed to be equal to the line width and the line width of the data electrode terminal 30, respectively. For example, such a curved portion 32 is formed by connecting an arc-shaped pattern having a line width and an inter-line width equal to the line width and the inter-line width of the data electrode terminal 30 to the connection portion 34 to the data electrode terminal 30. Can be formed.

  Further, the line width and the line width of the curved portion 32 are equal to or larger than the line width and the line width of the data electrode terminal 30 in the portion other than the connection portion 34 to the data electrode terminal 30. It is formed in an arbitrary curved shape.

  The straight line portion 31 is connected to the curved portion 32, and in order to smoothly connect to the curved portion 32 so that there are no corners, the line width and the line width are equal to each other at the boundary with the curved portion 32. It is formed in a linear shape. The straight portion 31 is connected to the data electrode 11. Since the line width and the line width of the data electrode 11 are wider than the line width and the line width of the data electrode terminal 30, the line width and the line width of the straight line portion 31 are the line width and the line width of the data electrode terminal 30. Wider than width. For this reason, migration due to electric field concentration is unlikely to occur, so the straight line portion 31 is formed in a straight line shape that allows easy pattern design.

  As described above, the lead line 25 is formed in a curved shape in the connecting portion 34 to the data electrode terminal 30 so that the line width and the line width are equal to the line width and the line width of the data electrode terminal 30. In other parts, the line width and the line width are formed so as to be equal to or larger than the line width and the line width of the data electrode terminal 30. There is an effect that it is difficult to cause a short circuit of the lead wire 25 due to the adhesion of the metal or migration due to electric field concentration.

  Next, an example of a specific procedure for forming the lead line 25 will be described. FIG. 4 is a diagram showing an example of a detailed configuration method of the lead lines 25 of the panel 1 in the first embodiment of the present invention.

  First, a procedure for forming the curved portion 32 will be described. In order to form a curved portion 32 smoothly connected from one data electrode terminal 30, arcs 40 and 41 are formed around the point A. In the present embodiment, the point A is a point on a line obtained by extending the connection portion 34 between the data electrode terminal 30 and the lead wire 25 to the outside of the terminal portion 26 as shown in the figure.

  Then, an arc 40 and an arc 41 are drawn so as to be in contact with the connection portion 34 on the left and right sides of the data electrode terminal 30 with the point A as the center. The arc 40 forms the left side of the curved portion 32. Similarly, the arc 41 forms the right side of the curved portion 32. Since the arc 40 and the arc 41 are in contact with the left and right sides of the data electrode terminal 30 at the connection portion 34, the curve portion 32 formed by the arc 40 and the arc 41 has a line width of the line width of the data electrode terminal 30. Is the same. Thus, the curve of the curved portion 32 is formed by the arcs 40 and 41 having the center on the extension line of the end portion of the data electrode terminal 30.

  Similarly, another curved portion 32 positioned on the left side from the symmetry axis 33 can be formed with the point A as the center. When the curved portion 32 is formed in this manner, the line width is the same as that of the data electrode terminal 30.

  Further, the curved portion 32 on the right side from the symmetry axis 33 can be formed in the same manner with a point symmetrical to the point A as the center.

  Next, a procedure for forming the straight portion 31 will be described. The straight line portion 31 is formed by connecting the line segment in contact with the left and right sides of the curved portion 32 to the data electrode 11 in order to connect the curved portion 32 and the data electrode 11 in a pattern formed in a straight line shape. First, a tangent line that passes through the left side of the data electrode 11 and touches the arc 40 that forms the left side of the curved portion 32 is drawn. A line segment connecting the left side of the data electrode 11 and the point in contact with the arc 40 is defined as the left side of the straight line portion 31. Similarly, a tangent line passing through the right side of the data electrode 11 and in contact with the arc 41 forming the right side of the curved portion 32 is drawn. A line segment connecting the right side of the data electrode 11 and the point in contact with the arc 41 is defined as the right side of the straight line portion 31. In this way, the straight portion 31 is formed by two line segments that are in contact with the two arcs 40 and 41 constituting the curved portion 32 and are connected to the left and right sides of the data electrode 11 respectively. In the same manner, the straight line portions 31 of the other lead lines 25 can be formed.

  Two line segments that form the straight line portion 31 are in contact with the curved line portion 32 at the boundary between the curved line portion 32 and the straight line portion 31. Therefore, the width of the lead line 25 is the same as that of the data electrode terminal 30 at the boundary between the curved portion 32 and the straight portion 31.

  As described above, since the curved portion 32 is formed in a curved shape by the two arcs 40 and 41 centering on the point A, the same line width and line spacing as those of the data electrode terminal 30 having the strictest dimensional tolerance. Have a width. Further, since the line width and the line width of the straight line portion 31 are wider than the line width and the line width of the data electrode terminal 30, migration due to electric field concentration hardly occurs in the straight line portion 31. For this reason, the straight line part 31 is formed in a straight line shape with a simple pattern design.

  FIG. 5 is a diagram showing details of the panel lead lines in the first embodiment of the present invention. An example in which the lead wire 25 is formed around the point B in contact with the terminal portion 26 on the line obtained by extending the connection portion 34 along the above-described procedure is shown for the left portion of the symmetry axis 33. In the present embodiment, the data electrode 11 is designed to have a line width of 100 μm and a line width of 150 μm, the data electrode terminal 30 has a line width of 80 μm, and a line width of 135 μm. The width W1 of the terminal portion 26 is about 80 mm, and the width W2 of the plurality of data electrodes 11 narrowed down to one terminal portion 26 is about 95 mm. Further, the width L1 of the lead portion forming the lead wire 25 is about 15 mm.

  A broken line connecting the boundary between the straight line portion 51 and the curved line portion 52 of the lead line 25 is shown as a boundary line 53. In this case, the width L2 between the boundary line 53 and the terminal portion 26 is about 7 mm. When the boundary line 53 is in contact with the data electrode 11, the straight part 51 cannot be smoothly connected to the curved part 52. Therefore, L1 may be equal to or slightly larger than L2, and can be reduced to about 7 mm if there is no restriction such as a sealing material such as glass frit. In the conventional example, L1 is required to be about 40 mm, so that the space for forming the outer peripheral portion on the back substrate 3 can be greatly reduced.

  In this way, the lead-out line 25 is configured so that there are no corners in the connection part 34 and the boundary line 53 with the strictest dimensional tolerance, and the line width and the inter-line width are equal to or greater than those of the data electrode terminal 30. Therefore, even in a high-definition panel, it is difficult to cause a short circuit of the lead wire 25 due to adhesion of dust or migration due to electric field concentration, and the space on the outer peripheral portion on the back substrate 3 can be reduced.

(Second Embodiment)
FIG. 6 is a diagram showing an example of a detailed configuration method of the lead lines 25 of the panel 1 in the second embodiment of the present invention. The same components as those in the first embodiment of the present invention are denoted by the same reference numerals, and the description of the same components is omitted.

  A feature of the present embodiment is that the lead line 25 is configured by an arc that does not share the center. This figure shows an example in which the line widths of the curved lines 61 and 62 are made equal and the line width W3 by the curved lines 61 and 62 is increased.

  First, a curved portion 61 connected to the data electrode terminal 63 is formed by an arc centered at the point K. The curved portion 62 connected to the data electrode terminal 64 is formed by an arc centered on the L point on the left side of the K point. The straight portions 65 and 66 are formed in the same manner as described above. When the lead line 25 is formed in this manner, the line width W3 can be increased by changing the center. In this example, the case where the line width of the curved portion 32 is increased is shown, but the line width can also be increased. Thus, the curved portion 32 has a center of an arc on a line obtained by extending the connecting portion 34 to the outside of the terminal portion 26, and the curved portion 32 formed by an arc having a larger radius sets the center farther from the terminal portion 26. Then, by forming in a curved shape, the line width and the line width can be made wider than the line width and the line width of the data electrode terminal 30. Thereby, there is an effect that it is difficult to cause a short circuit due to disconnection of the lead wire 25 or adhesion of dust.

  In the first and second embodiments of the present invention, the straight portion 31 is formed between the curved portion 32 and the data electrode 11, but in addition to the straight portion 31, a curved portion is formed. May be. In this way, the lead-out line 25 can be drawn out while maintaining the line width and the line-to-line width of the data electrode 11 by the curved portion, so that it is difficult to cause a short-circuit of the lead-out line due to dust adhesion or migration due to electric field concentration. The effect is obtained.

  In the first and second embodiments of the present invention, the line width and the line width of the data electrode terminal 30 are designed to be narrower than the line width and the line width of the data electrode 11. It was. However, the data electrode terminal 30 and the data electrode 11 have the same line width and the data electrode terminal 30 has a narrow line width, or the data electrode terminal 30 and the data electrode 11 have the same line width and the data electrode terminal 30 has the same line width. The present invention can also be applied to a case where the line width is narrow. Even in these cases, if the lead line 25 is formed in a curved shape as described above, a line width and an inter-line width equal to or greater than the line width and the inter-line width of the data electrode terminal 30 can be secured.

  In the first and second embodiments of the present invention, the lead line 25 is formed symmetrically with respect to the symmetry axis 33. However, the present invention can also be applied to the case where the lead lines 25 are not formed symmetrically. Even in this case, if the lead lines 25 are formed in a curved shape as described above, a line width and an inter-line width equal to or greater than the line width and the inter-line width of the data electrode terminal 30 can be secured.

  In the first and second embodiments of the present invention, an arc is used to form the curved portion 32. However, a point on a line obtained by extending the connection portion 34 between the data electrode terminal 30 and the curved portion 32 is used. You may use the ellipse made into a focus. Thus, even if the curved portion 32 is formed so that the ellipse is in contact with the left and right sides of the data electrode terminal 30, the curved portion 32 having the same line width and interline width as the data electrode terminal 30 can be configured. . According to this configuration, the radius of curvature of the curved portion 32 can be changed and the degree of freedom in design increases, so that the curved portion 32 can be formed to have an optimum line width and inter-line width.

  In the first and second embodiments of the present invention, the lead line 25 of the data electrode 11 is provided with the curved portion 32 along the arc or ellipse. Providing a curved line along the circular arc or ellipse also in the lead line can provide an effect that it is difficult to cause a short circuit of the lead line due to dust adhesion or migration due to electric field concentration.

  As described above, according to the present invention, it is possible to provide a panel that is less likely to cause migration due to short-circuiting of data electrode lead lines due to adhesion of dust or the like due to electric field concentration, and can reduce the outer peripheral space on the back substrate. This is useful for a display device or the like.

The disassembled perspective view of the panel in the 1st Embodiment of this invention The figure which shows the structure of the data electrode of the panel in the 1st Embodiment of this invention. The figure which shows the detail of the leader line of the panel in the 1st Embodiment of this invention The figure which shows the detailed structure method of the leader line of the panel in the 1st Embodiment of this invention The figure which shows the detail of the leader line of the panel in the 1st Embodiment of this invention The figure which shows the detailed structure method of the leader line of the panel in the 2nd Embodiment of this invention (A) is a figure which shows the structure of the data electrode of the conventional panel, (b) is a figure which shows the detail of the drawing-out line of the conventional panel The figure which shows the detail near the data electrode terminal part of the conventional panel

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Panel 2 Front substrate 3,71 Rear substrate 6 Dielectric layer 7 Protective layer 8 Partition 9 Phosphor layer 10 Underlying dielectric layer 11, 72 Data electrode 12, 14 Transparent electrode 13, 15 Bus electrode 16 Scan electrode 17 Sustain electrode 18 Display electrode pair 19, 73 Image display area 25, 77, 79 Lead line 26, 74 Terminal part 30, 63, 64, 76 Data electrode terminal 31, 51, 65, 66 Straight line part 32, 52 (of lead line 25) 61, 62 Curved portion (of lead wire 25) 33 Axis of symmetry 34 Connection portion 40, 41 Arc 53 Boundary line

Claims (3)

A plasma display panel comprising a front substrate on which display electrodes are formed, and a rear substrate having a plurality of data electrodes that intersect with the display electrodes and are arranged at a predetermined pitch,
At the end of the back substrate, the data electrodes and the external terminals are electrically connected, the data electrode terminals arranged at a pitch narrower than the pitch of the data electrodes, the data electrodes and the data A plasma display panel comprising: a lead line for connecting to an electrode terminal; and a portion of the lead line connected to the data electrode terminal has a curved portion. The plasma display panel according to claim 1, wherein the curve of the curved portion is an arc having a center on an extension line of the end portion of the data electrode terminal. The plasma display panel according to claim 1, wherein a portion of the lead line connected to the data electrode is a straight line in contact with the curved portion.

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