KR20090083735A - Plasma display device thereof - Google Patents

Abstract

A plasma display device is provided to improve the picture quality of the display picture by removing the transparent electrode of ITO. The plasma display apparatus comprises the upper plate(11), the lower plate(21), the first electrode(12), the second electrode(13) and the third electrode(23). The upper and lower substrates are arranged in order to face each other. The first and second electrodes are arranged on the upper plate and have two or more electrode lines(12a, 12b, 13a, 13b) among the first and second electrodes at least. Two neighboring electrode lines are connected to the non-effective region of the plasma display panel. The third electrode is arranged on the lower plate.

Description

Plasma display device

The present invention relates to a plasma display device, and more particularly, to an electrode structure of a panel provided in the plasma display device.

In general, a plasma display panel is a partition wall formed between an upper substrate and a lower substrate to form one unit cell, and each cell includes neon (Ne), helium (He), or a mixture of neon and helium (Ne + He) and An inert gas containing the same main discharge gas and a small amount of xenon is filled. When discharged by a high frequency voltage, the inert gas generates vacuum ultraviolet rays (Vacu μm Ultraviolet rays), and emits phosphors formed between the partition walls to realize an image. Such a plasma display panel has a spotlight as a next generation display device because a thin and light configuration is possible.

In a typical plasma display panel, a scan electrode and a sustain electrode are formed on an upper substrate, and the scan electrode and the sustain electrode are laminated with a transparent electrode and a bus electrode made of expensive ITO (Indiμm Tin Oxide) to secure an aperture ratio of the panel. Has a structure.

Recently, the focus is on manufacturing a plasma display panel that can secure sufficient viewing characteristics, driving characteristics, and the like, while reducing manufacturing costs.

The present invention provides a plasma display apparatus that can reduce the manufacturing cost of the panel by removing the transparent electrode made of ITO, and at the same time improve the deterioration of image quality due to dark spots of the display image in the panel provided in the plasma display apparatus. For the purpose of

Plasma display device according to the present invention for solving the above technical problem, the upper substrate; First and second electrodes formed on the upper substrate; A lower substrate disposed to face the upper substrate; And a third electrode formed on the lower substrate, wherein at least one of the first and second electrodes includes two or more electrode lines, and two electrode lines adjacent to each other among the two or more electrode lines are formed of a panel. It is characterized in that the connection in the invalid area.

According to the plasma display device according to the present invention configured as described above, it is possible to reduce the manufacturing cost of the plasma display panel by removing the transparent electrode made of indium tin oxide (ITO), and the two forming the scan electrode or the sustain electrode By connecting the electrode lines in the non-effective area, it is possible to prevent the occurrence of dielectric bubbles by lifting or twisting the ends of the electrode lines, thereby improving the image quality of the display image by reducing dark spots caused by the breakdown of the electrodes. have.

Hereinafter, a plasma display device according to the present invention will be described in detail with reference to the accompanying drawings. 1 is a perspective view illustrating an embodiment of a structure of a plasma display panel according to the present invention.

Referring to FIG. 1, the plasma display panel includes an upper panel 10 and a lower panel 20 that are bonded at predetermined intervals.

The upper panel 10 includes a pair of sustain electrodes 12 and 13 formed in pairs on the upper substrate 11. The sustain electrode pairs 12 and 13 are divided into the scan electrode 12 and the sustain electrode 13 according to their function. The sustain electrode pairs 12 and 13 are covered by the upper dielectric layer 14 which limits the discharge current and insulates the electrode pairs, and a protective film layer 15 is formed on the upper dielectric layer 204, so that during the gas discharge. The upper dielectric layer 14 is protected from sputtering of charged particles generated, and the emission efficiency of secondary electrons is increased.

Discharge gas is injected into the discharge space provided between the upper substrate 11, the lower substrate 21, and the partition wall 22. Preferably, the discharge gas contains 10% or more of xenon (Xe). When the xenon (Xe) is included in the discharge gas with the above mixing ratio, the discharge / light emitting efficiency and the luminance of the plasma display panel can be improved.

The lower panel 20 is formed with a plurality of discharge spaces, that is, partitions 22 partitioning the discharge cells on the lower substrate 21. In addition, the address electrodes 23 are disposed in a direction crossing the sustain electrode pairs 22 and 23, and the surface of the lower dielectric layer 25 and the partition wall 22 are emitted by ultraviolet rays generated during gas discharge to generate visible light. Phosphor 24 is applied.

In this case, the partition wall 22 includes a vertical partition wall 22a formed in a direction parallel to the address electrode 23, and a horizontal partition wall 22b formed in a direction crossing the address electrode 23, and physically distinguishes the discharge cells. In addition, ultraviolet rays and visible light generated by the discharge are prevented from leaking to the adjacent discharge cells.

Further, in the plasma display panel according to the present invention, the sustain electrode pairs 12 and 13 consist of only opaque metal electrodes. That is, the ITO, which is a conventional transparent electrode material, is not used, and the sustain electrode pairs 12 and 13 are formed using silver (Ag), copper (Cu), chromium (Cr), or the like, which is a material of the conventional bus electrode. . That is, each of the electrode pairs 12 and 13 of the plasma display panel according to the present invention does not include a conventional ITO electrode and is formed of one layer of a bus electrode.

For example, each of the sustain electrode pairs 12 and 13 according to the embodiment of the present invention is preferably formed of silver, and silver (Ag) preferably has photosensitive properties. In addition, each of the sustain electrode pairs 12 and 13 according to an exemplary embodiment of the present invention has a darker color and lower light transmittance than the upper dielectric layer 14 or the lower dielectric layer 14 formed on the upper substrate 11. Can have properties.

The discharge cell may have a symmetrical structure in which the phosphor layers 24 each of R (Red), G (Green), and B (Blue) have the same pitch, or have an asymmetric structure having different pitches. When the discharge cells have an asymmetrical structure, the discharge cells may have the order of the width of the R (Red) cell <the width of the G (Green) cell <the width of the B (Blue) cell.

As shown in FIG. 1, the sustain electrodes 12 and 13 may be formed of a plurality of electrode lines in one discharge cell. That is, the first storage electrode 12 is formed of two electrode lines 12a and 12b, and the second storage electrode 13 is symmetrically arranged with the first storage electrode 12 based on the center of the discharge cell. Two electrode lines 13a and 13b may be formed.

Preferably, the first and second sustain electrodes 12 and 13 are scan electrodes and sustain electrodes, respectively. This takes into account the aperture ratio and the discharge diffusion efficiency by using the opaque sustain electrode pairs 12 and 13. That is, an electrode line having a narrow width is used in consideration of the aperture ratio, while a plurality of electrode lines are used in consideration of discharge diffusion efficiency. In this case, the number of electrode lines may be determined by considering the aperture ratio and the discharge diffusion efficiency simultaneously.

Since the structure shown in FIG. 1 is only an embodiment of the structure of the plasma panel according to the present invention, the present invention is not limited to the structure of the plasma display panel shown in FIG. For example, a black matrix (BM) that absorbs external light generated from the outside to reduce reflection and improves the purity and contrast of the upper substrate 11 includes a black matrix (BM). 11) may be formed on the black matrix, and both the detachable and integral BM structures are possible.

In addition, although the barrier rib structure of the panel shown in FIG. Stripe Type) or a structure such as a Fish Bone having a protrusion formed at a predetermined interval on the vertical partition wall.

FIG. 2 illustrates an embodiment of an electrode arrangement of a plasma display panel, and a plurality of discharge cells constituting the plasma display panel are preferably arranged in a matrix form as shown in FIG. 2. The plurality of discharge cells are provided at the intersections of the scan electrode lines Y1 to Ym, the sustain electrode lines Z1 to Zm, and the address electrode lines X1 to Xn, respectively. The scan electrode lines Y1 to Ym may be driven sequentially or simultaneously, and the sustain electrode lines Z1 to Zm may be driven simultaneously. The address electrode lines X1 to Xn may be driven by being divided into odd-numbered lines and even-numbered lines, or sequentially driven.

Since the electrode arrangement shown in FIG. 2 is only an embodiment of the electrode arrangement of the plasma panel according to the present invention, the present invention is not limited to the electrode arrangement and driving method of the plasma display panel shown in FIG. 2. For example, a dual scan method in which two scan electrode lines among the scan electrode lines Y1 to Ym are simultaneously scanned is possible. In addition, the address electrode lines X1 to Xn may be driven by being divided up and down or left and right in the center portion of the panel.

3 is a timing diagram illustrating an embodiment of a time division driving method by dividing a frame into a plurality of subfields. The unit frame may be divided into a predetermined number, for example, eight subfields SF1, ..., SF8 to realize time division gray scale display. Each subfield SF1, ... SF8 is divided into a reset section (not shown), an address section A1, ..., A8 and a sustain section S1, ..., S8.

Here, according to an embodiment of the present invention, the reset period may be omitted in at least one of the plurality of subfields. For example, the reset period may exist only in the first subfield or may exist only in a subfield about halfway between the first subfield and all the subfields.

In each address section A1, ..., A8, a display data signal is applied to the address electrode X, and scan pulses corresponding to each scan electrode Y are sequentially applied.

In each of the sustain periods S1, ..., S8, a sustain pulse is alternately applied to the scan electrode Y and the sustain electrode Z to form wall charges in the address periods A1, ..., A8. Sustain discharge occurs in the discharge cells.

The luminance of the plasma display panel is proportional to the number of sustain discharge pulses in the sustain discharge periods S1, ..., S8 occupied in the unit frame. When one frame forming one image is represented by eight subfields and 256 gradations, each subfield in turn has different sustains at a ratio of 1, 2, 4, 8, 16, 32, 64, and 128. The number of pulses can be assigned. In order to obtain luminance of 133 gradations, cells may be sustained by addressing the cells during the subfield 1 section, the subfield 3 section, and the subfield 8 section.

The number of sustain discharges allocated to each subfield may be variably determined according to weights of the subfields according to the APC (Automatic Power Control) step. That is, in FIG. 3, a case in which one frame is divided into eight subfields has been described as an example. However, the present invention is not limited thereto, and the number of subfields forming one frame may be variously modified according to design specifications. . For example, the plasma display panel may be driven by dividing one frame into eight or more subfields, such as 12 or 16 subfields.

The number of sustain discharges allocated to each subfield can be variously modified in consideration of gamma characteristics and panel characteristics. For example, the gray level assigned to subfield 4 may be lowered from 8 to 6, and the gray level assigned to subfield 6 may be increased from 32 to 34.

4 is a timing diagram illustrating an embodiment of a drive signal for driving a plasma display panel.

The subfield is a wall formed by a pre-reset section and a pre-reset section for forming positive wall charges on the scan electrodes Y and negative wall charges on the sustain electrodes Z. It may include a reset section for initializing the discharge cells of the entire screen by using the charge distribution, an address section for selecting the discharge cells, and a sustain section for maintaining the discharge of the selected discharge cells. have.

The reset section includes a setup section and a setdown section. In the setup section, rising ramp waveforms (Ramp-up) are simultaneously applied to all scan electrodes to generate fine discharges in all discharge cells. Thus, wall charges are generated. In the set-down period, a falling ramp waveform (Ramp-down) falling at a positive voltage lower than the peak voltage of the rising ramp waveform (Ramp-up) is simultaneously applied to all the scan electrodes (Y), thereby eliminating discharge discharge in all the discharge cells. Generated, thereby eliminating unnecessary charges during wall charges and space charges generated by the setup discharges.

In the address period, a scan signal having a negative scan voltage Vsc is sequentially applied to the scan electrode, and at the same time, a positive data signal is applied to the address electrode X. The address discharge is generated by the voltage difference between the scan signal and the data signal and the wall voltage generated during the reset period, thereby selecting the cell. On the other hand, in order to increase the efficiency of the address discharge, a sustain bias voltage Vzb is applied to the sustain electrode during the address period.

During the address period, the plurality of scan electrodes Y may be divided into two or more groups, and scan signals may be sequentially supplied to each group, and each of the divided groups may be further divided into two or more subgroups and sequentially by the subgroups. Scan signals can be supplied. For example, the plurality of scan electrodes Y is divided into a first group and a second group, and scan signals are sequentially supplied to scan electrodes belonging to the first group, and then scan electrodes belonging to the second group Scan signals may be supplied sequentially.

According to an embodiment of the present invention, the plurality of scan electrodes Y may be divided into a first group located at an even number and a second group located at an odd number according to a position formed on a panel. In another embodiment, the panel may be divided into a first group positioned above and a second group positioned below the center of the panel.

The scan electrodes belonging to the first group divided by the above method are further divided into a first subgroup located at an even number and a second subgroup located at an odd number, or the first group. The first subgroup positioned above and the second group positioned below may be divided based on the center of the.

In the sustain period, a sustain pulse having a sustain voltage Vs is alternately applied to the scan electrode and the sustain electrode to generate sustain discharge in the form of surface discharge between the scan electrode and the sustain electrode.

The width of the first sustain signal or the last sustain signal among the plurality of sustain signals alternately supplied to the scan electrode and the sustain electrode in the sustain period may be greater than the width of the remaining sustain pulses.

After the sustain discharge occurs, an erase period for erasing the wall charge remaining in the scan electrode or the sustain electrode of the selected ON cell in the address period by generating a weak discharge may be further included after the sustain period.

The erase period may be included in all or some of the plurality of subfields, and the erase signal for the weak discharge is preferably applied to the electrode to which the last sustain pulse is not applied in the sustain period.

The cancellation signal is a ramp-type signal that gradually increases, a low-voltage wide pulse, a high-voltage narrow pulse, an exponential signal, or half Sinusoidal pulses can be used.

In addition, a plurality of pulses may be sequentially applied to the scan electrode or the sustain electrode to generate the weak discharge.

The driving waveforms shown in FIG. 4 are exemplary embodiments of signals for driving the plasma display panel according to the present invention, and the present invention is not limited to the waveforms shown in FIG. 4. For example, the pre-reset period may be omitted, and the polarity and the voltage level of the driving signals illustrated in FIG. 4 may be changed as necessary. After the sustain discharge is completed, an erase signal for erasing wall charge may be applied to the sustain electrode. May be authorized. In addition, the single sustain driving may be performed by applying the sustain signal to only one of the scan electrode (Y) and the sustain (Z) electrode to generate a sustain discharge.

FIG. 5 is a schematic cross-sectional view of an electrode structure formed on an upper substrate of the plasma display panel, and only the structure of the sustain electrode pairs 12 and 13 formed in one discharge cell of the plasma display panel shown in FIG. It is shown.

Referring to FIG. 5, a sustain electrode, that is, a scan electrode and a sustain electrode according to an embodiment of the present invention are formed in a symmetrical pair on the substrate with respect to the center of the discharge cell. Each of the sustain electrodes may include at least two electrode lines 61, 62, 71, and 72 that cross the discharge cells.

In addition, each of the sustain electrodes may further include connection electrodes 63 and 73 connecting the two electrode lines 61 and 62, 71 and 72.

The electrode lines 61, 62, 71, and 72 may cross the discharge cell and may extend in a direction parallel to the horizontal partition wall 50 among partition walls that partition the discharge cell.

The connecting electrodes 63 and 73 help the discharge initiated in the center portion of the discharge cell to easily diffuse to the electrode lines 61 and 71 disposed away from the center of the discharge cell.

As described above, by improving the discharge efficiency using the plurality of electrode lines 61, 62, 71, 72 and the connection electrodes 63, 73, the luminous efficiency of the plasma display panel may be improved as a whole. Accordingly, the ITO transparent electrode can be removed without reducing the luminance of the plasma display panel.

FIG. 5 is a cross-sectional view illustrating embodiments of an electrode structure formed on an upper substrate of a plasma display panel, wherein the sustain electrode pairs 12 and 13 formed in one discharge cell of the plasma display panel shown in FIG. Only the structure of the scan electrode and the sustain electrode is shown briefly.

Referring to FIG. 5, the storage electrodes 110 and 120 are formed in a symmetrical pair on the substrate with respect to the center of the discharge cell. Each of the sustain electrodes 110 and 120 is connected to at least two electrode lines 111, 112, 121, and 122 crossing the discharge cell and the electrode lines 112 and 121 closest to the center of the discharge cell. Two protruding electrodes 114, 115, 124, and 125 protruding in the center direction may be included.

In addition, each of the sustain electrodes 110 and 120 may further include connection electrodes 113 and 123 connecting the two electrode lines 111 and 112, 121 and 122.

The electrode lines 111, 112, 121, and 122 cross the discharge cells and extend in one direction of the plasma display panel. The electrode line according to the embodiment of the present invention is formed to have a narrow width to always maintain the aperture ratio.

In addition, although a plurality of electrode lines 111, 112, 121, and 122 are used to improve discharge diffusion efficiency, it is preferable to determine the number of electrode lines in consideration of the aperture ratio.

The protruding electrodes 114, 115, 124, and 125 lower the discharge start voltage when the plasma display panel is driven. That is, since discharge is initiated even between the protruding electrodes 111, 112, 121, and 122 formed adjacent to each other, the discharge start voltage of the plasma display panel can be lowered. Here, the discharge start voltage may mean a voltage level at which discharge starts when a pulse is supplied to at least one of the sustain electrode pairs 110 and 120.

The connecting electrodes 113 and 123 help the discharges initiated through the protruding electrodes 111, 112, 121, and 122 to easily diffuse from the center of the discharge cell to the far electrode lines 111 and 122.

As described above, the discharge start voltage is reduced by the protruding electrodes 111, 112, 121, and 122, and the discharge is performed by using the connection electrodes 113 and 123 and the plurality of electrode lines 111, 112, 121, and 122. By increasing the diffusion efficiency, it is possible to improve the luminous efficiency of the plasma display panel as a whole. Accordingly, the ITO transparent electrode can be removed without reducing the luminance of the plasma display panel.

In addition, in order to spread the discharge efficiently to the upper and lower end spaces of the discharge cells, the plasma display panel according to the present invention protrudes from the electrode line (111, 122) far from the center of the discharge cell in the transverse bulkhead direction adjacent thereto. It may further include other protruding electrodes (not shown).

6 is a cross-sectional view illustrating terminal structures of sustain electrodes formed in an invalid region of the plasma display panel.

As described above, since the opening ratio of the panel may be reduced by removing the ITO transparent electrode, the width w of the electrode lines 210, 215, 220, and 225 formed on the upper substrate of the plasma display panel according to the present invention. The silver is preferably formed narrow in order to always keep the aperture ratio of the panel.

However, as the width (w) of the electrode lines 210, 215, 220, and 225 is decreased, the resistance of the electrode lines may increase, thereby increasing power consumption. Accordingly, power consumption for driving the panel may not be increased. In order to improve the aperture ratio of the panel, the width w of the electrode lines 210, 215, 220, and 225 is preferably 30 μm to 50 μm.

Referring to FIG. 6, a plurality of electrode lines constituting one sustaining electrode may be connected to a driving unit supplying a driving signal from one side of the left and right sides of the panel, and may have an open structure on the other side.

For example, the two electrode lines 210 and 215 constituting the scan electrode are connected to a scan driver that extends to the right side of the panel to supply driving signals to the scan electrodes, respectively, and is located on the left side of the panel. The dummy cell 200 may have an open structure.

In this case, curling or peeling off may occur after firing at the ends 211 and 216 of the open electrode line, and thus dielectric bubbles are generated near the ends 211 and 216 of the electrode line. As a result, dark spots may occur due to dielectric breakdown.

As the width w of the electrode lines 210, 215, 220, and 225 is narrowed to improve the aperture ratio of the panel, curl or peel off of the ends 211 and 216 of the electrode lines are formed. The possibility of occurrence of a phenomenon may be higher.

Accordingly, in the plasma display device according to the present invention, the terminal portions of the left and right ends of the electrode lines 210, 215, 220, and 225, which are not connected to the driving unit, are connected to each other in the non-effective region, thereby the electrode lines 210 and 215. It is possible to increase the surface area of the ends of the, 220, 225, thereby reducing the curl (curl) or the peel off phenomenon of the ends (211, 216) of the electrode line.

7 to 11 illustrate cross-sectional views of embodiments of an electrode structure formed on an upper substrate of a plasma display panel according to the present invention.

Referring to FIG. 7, electrode lines 310 and 315 constituting one sustaining electrode may be connected to each other in an invalid area of the panel. That is, in the plasma display apparatus according to the present invention, the connection portions 311 of the electrode lines 310 and 315 may overlap with the dummy cell 300 positioned in the ineffective region.

In order to increase the surface area of the ends of the electrode lines 310 and 315, the cross section of the connecting portion 311 of the electrode lines 310 and 315 may have a curved shape as shown in FIG. 7.

Referring to FIG. 8, a cross section of the connection portion 411 of the electrode lines 410 and 415 may have an oblique shape.

As illustrated in FIG. 8, the connecting portions 411 of the electrode lines 410 and 415 may be diagonally formed to prevent discharge from occurring in the dummy cell 400.

That is, by forming the connecting portions 411 of the electrode lines 410 and 415 in an oblique form, the gap between the scan electrode and the sustain electrode in the dummy cell 400 located in the non-effective area of the panel can be increased. As a result, the dummy cell 400 may be prevented from being discharged.

Referring to FIG. 9, electrode lines 520 and 525 constituting another sustaining electrode may be connected to each other in an ineffective region located on the right side of the panel.

Accordingly, the electrode lines of any one of the sustain electrode pairs are connected to each other in an invalid region located on the left side of the panel, and the other electrode lines are connected to each other in an invalid region located on the right side of the panel, thereby And on the right side may have a structure connected respectively.

This may be the case in which the scan driver supplying the driving signal to the scan electrode and the sustain driver supplying the driving signal to the sustain electrode are located at different left and right sides of the panel.

Referring to FIG. 10, two electrode lines 610 and 615 constituting the scan electrode and two electrode lines 620 and 625 constituting the sustain electrode may be connected at the same side of the left and right sides of the panel.

This is because the scan driver for supplying the drive signal to the scan electrode and the sustain driver for supplying the drive signal to the sustain electrode are located on the same side of the left and right sides of the panel, or the drive signal is supplied to the scan electrode and the sustain electrode using one common driver. It may be the case.

Referring to FIG. 11, two or more dummy cell lines may be formed in an invalid area on the left or right side of the panel.

For example, as shown in FIG. 11, three dummy cells 700, 701, and 702 may be formed on the left or right side of the panel, respectively, in which case the electrode lines 710 and 715 are the innermost. It may be connected on the dummy cell 702 located in.

That is, the connection portion 711 of the electrode lines 710 and 715 overlaps the dummy cell 702 closest to the center of the panel among the plurality of dummy cells 700, 701, and 702 formed on one side of the panel. Can be formed on.

In FIG. 11, the electrode lines 620 and 625 formed in the dummy cells 700, 701, and 702 in the non-effective region also include protruding electrodes and connection electrodes. 620 and 625 may not include protruding electrodes and connecting electrodes.

Although a preferred embodiment of the present invention has been described in detail above, those skilled in the art to which the present invention pertains can make various changes without departing from the spirit and scope of the invention as defined in the appended claims. It will be appreciated that modifications or variations may be made to the branches. Accordingly, modifications to future embodiments of the present invention will not depart from the technology of the present invention.

1 is a perspective view showing an embodiment of the structure of a plasma display panel according to the present invention.

2 is a diagram illustrating an embodiment of an electrode arrangement of a plasma display panel.

FIG. 3 is a timing diagram illustrating an embodiment of a method of time-divisionally driving a plasma display panel by dividing one frame into a plurality of subfields.

4 is a timing diagram illustrating an embodiment of a waveform of a driving signal for driving a plasma display panel.

5 is a cross-sectional view schematically illustrating an electrode structure formed on an upper substrate of a plasma display panel.

6 is a cross-sectional view illustrating an electrode terminal structure formed in an invalid region of a plasma display panel.

7 to 11 are cross-sectional views illustrating embodiments of an electrode structure formed on an upper substrate of a plasma display panel according to the present invention.

Claims (9)

Upper substrate; First and second electrodes formed on the upper substrate; A lower substrate disposed to face the upper substrate; And a third electrode formed on the lower substrate. At least one of the first and second electrodes And at least two electrode lines, wherein two of the at least two electrode lines adjacent to each other are connected in an invalid region of the panel. The method of claim 1, At least one of the first and second electrodes is formed of a single layer. The method of claim 1, And the first and second electrodes do not include a transparent electrode made of indium tin oxide (ITO). The method of claim 1, And the connection portions of the two adjacent electrode lines overlap at least one of a plurality of dummy cells formed in an invalid region of the panel. The method of claim 4, wherein And the connection portion is formed at a position overlapping a dummy cell closest to a center of the panel among the plurality of dummy cells. The method of claim 1, And a connecting portion of the two adjacent electrode lines has a curved shape. The method of claim 1, And the connecting portion of the two adjacent electrode lines has an oblique shape. The method of claim 1, The connecting portion of the two electrode lines included in the first electrode is located on the left side of the panel, and the connecting portion of the two electrode lines included in the second electrode is located on the right side of the panel. . The method of claim 1, The line width of the electrode line is a plasma display device, characterized in that 30㎛ to 50㎛.

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