KR20100045779A - Plasma display device thereof - Google Patents

Abstract

PURPOSE: A plasma display device thereof is provided to enlarge a concentration of electric filed in discharge cell by arranging a parallel electrode in an electrode line. CONSTITUTION: A first and a second electrode are formed on the top plate. The bottom plate is faced with the top plate. A third electrode is formed on the bottom plate. First electrodes(110,120) are formed into a monolayer. First electrode lines(111,121) are crossed with the third electrodes. First parallel electrodes(115,125) are parallel with the first electrode. First concatenated electrodes(113,123) interlink the first electrode line and the first parallel electrode.

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 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 indium tin oxide (ITO) 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.

SUMMARY OF THE INVENTION An object of the present invention is to provide a plasma display device capable of reducing the manufacturing cost of a panel and improving the brightness of a display image by removing the transparent electrode made of ITO in a panel provided in the plasma display device.

Plasma display device according to the present invention for solving the above technical problem, the upper substrate, the first electrode and the second electrode formed on the upper substrate, the lower substrate disposed to face the upper substrate, the lower substrate is formed A first electrode line including a third electrode, the first electrode being formed in a single layer, and formed in a direction crossing the third electrode, and a first parallel formed in a direction parallel to the first electrode line And a first connection electrode connecting the electrode and the first electrode line and the first parallel electrode.

According to the plasma display device according to the present invention configured as described above, the manufacturing cost of the plasma display panel can be reduced by removing the transparent electrode made of indium tin oxide (ITO).

In addition, as the parallel electrodes parallel to the electrode lines are disposed, the distribution of the areas where electric fields are concentrated in the discharge cells can be widened, thereby increasing the discharge volume and preventing short or electrode wear between the sustain electrodes in the discharge cells. It becomes possible.

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. It is preferable that 10% or more of xenon (Xe) is contained in discharge gas. When xenon (Xe) is included in the discharge gas with the above mixing ratio, the discharge / light emitting efficiency and luminance of the plasma display panel may 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 the direction crossing the sustain electrode pairs 12 and 13, and the surface of the lower dielectric layer 25 and the partition wall 22 are emitted by ultraviolet light 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.

In the discharge cells, the phosphor layers 24 of R (Red), G (Green), and B (Blue) may each have a symmetrical structure having the same pitch or asymmetrical structures 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.

It is preferable that 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) can be formed on, the black matrix can be both a separate and integral BM structure.

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 forms a wall reset formed by a pre-reset section and a pre-reset section for forming the positive wall charges on the scan electrodes Y and the 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 distribution, an address section for selecting the discharge cells, and a sustain section for maintaining the discharge of the selected discharge cells. .

The reset section is composed of 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 discharge in all discharge cells. 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 erasing discharge in all the discharge cells. Therefore, the unnecessary charges of the wall charges and the space charges generated by the setup discharges are eliminated.

In the address period, a scan signal having a negative scan voltage Vsc is sequentially applied to the scan electrode, and a positive data signal is applied to the address electrode X at the same time. 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, the 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 the scan signals may be sequentially processed for each subgroup. Can be supplied. For example, the plurality of scan electrodes Y may be 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 to 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 the even-th and a second subgroup located at the odd (odd), or It may be divided into a first subgroup positioned above and a second group located below, based on the center.

In the sustain section, 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 it is preferable that an erase signal for weak discharge is applied to an 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 a 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 a weak discharge.

The driving waveforms shown in FIG. 4 are examples of signals for driving the plasma display panel according to the present invention, and the present invention is not limited by 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, and an erase signal for erasing wall charge may be applied to the sustain electrode after the sustain discharge is completed. It may be. In addition, a single sustain drive in which a sustain signal is applied to only one of the scan electrode (Y) and the sustain (Z) electrode to generate a sustain discharge is also possible.

FIG. 5 is a schematic cross-sectional view of an electrode structure formed on an upper substrate of a plasma display panel according to an embodiment of the present invention. The structure of a sustain electrode pair formed in one discharge cell of the plasma display panel shown in FIG. It is a simplified illustration of the bay.

Referring to FIG. 5, the sustain electrodes 110 and 120, that is, the scan electrodes and the sustain electrodes according to the exemplary embodiment of the present invention are symmetrically paired with respect to the center of the discharge cell on the substrate. Here, the discharge cells include sustain electrodes 110 and 120, horizontal partitions 102 and 104, vertical partitions 106 and 108, address electrodes (not shown), and phosphors (not shown).

Each of the storage electrodes 110 and 120 may be formed of a single layer, and may include electrode lines 111 and 121, connection electrodes 113 and 123, and parallel electrodes 115 and 125 that cross the discharge cells.

The electrode lines 111 and 121 may cross the discharge cell and may extend in a direction parallel to the horizontal partition walls 102 and 104 among the partition walls defining the discharge cells. The parallel electrodes 115 and 125 are formed in parallel with the electrode lines 111 and 121 in the discharge cell. The connection electrodes 113 and 123 may extend in a direction crossing the address electrode (not shown), that is, in a direction parallel to the vertical partitions 106 and 108. The connection electrodes 113 and 123 connect the electrode lines 111 and 121 to the parallel electrodes 115 and 125.

According to an embodiment of the present invention, when the sustain electrodes 110 and 120 include the electrode lines 111 and 121, the connection electrodes 113 and 123, and the parallel electrodes 115 and 125, a constant electric field is formed between the parallel electrodes 115 and 125. Will be formed. By forming a constant electric field between the parallel electrodes 115 and 125, the discharge between the sustain electrodes 110 and 120 is initiated between the parallel electrodes 115 and 125 where a constant electric field is concentrated, and the connecting electrodes 113 and 123 and the electrode. It is enlarged in the directions of the lines 111 and 121.

Due to the parallel electrodes 115 and 125, it is possible to widen the distribution of a region in which a constant electric field is concentrated, thereby increasing the discharge volume. Accordingly, the luminous efficiency of the plasma display panel can be improved as a whole such as characteristics such as visible light luminance are improved. As a result, the ITO transparent electrode can be removed without reducing the luminance of the plasma display panel.

On the other hand, by adjusting the distance between the parallel electrodes 115 and 125, the discharge start voltage and the luminance characteristics can be improved. For example, as the interval between the parallel electrodes 115 and 125 is narrower, the discharge start voltage may be lowered, but the luminance characteristics may deteriorate at the center of the discharge cell due to the parallel electrodes 115 and 125 made of a conductive material. Therefore, the spacing between the parallel electrodes 115 and 125 is preferably set at a predetermined interval.

On the other hand, by adjusting the opposing areas of the parallel electrodes 115 and 125, the discharge start voltage and the discharge volume can be adjusted. For example, as the opposing areas of the parallel electrodes 115 and 125 increase, the discharge start voltage may be lowered, but the discharge may be concentrated between the parallel electrodes 115 and 125 so that the discharge volume may no longer be expanded. Therefore, it is preferable that the opposing areas of the parallel electrodes 115 and 125 be set to a predetermined area.

6 is a schematic cross-sectional view of an electrode structure formed on an upper substrate of a plasma display panel according to an exemplary embodiment of the present invention. The structure of a sustain electrode pair formed in one discharge cell of the plasma display panel shown in FIG. It is a simplified illustration of the bay.

Referring to FIG. 6, the sustain electrodes 210 and 220, that is, the scan electrode and the sustain electrode according to the exemplary embodiment of the present invention are symmetrically paired with respect to the center of the discharge cell on the substrate. The discharge cells include sustain electrodes 210 and 220, horizontal partitions 202 and 204, vertical partitions 206 and 208, address electrodes (not shown), and phosphors (not shown).

Each of the sustain electrodes 210 and 220 may be formed of a single layer, and may include electrode lines 211 and 221 crossing the discharge cells, connection electrodes 213 and 223, and parallel electrodes 215 and 225. Each of the sustain electrodes 210 and 220 of FIG. 6 may further include a plurality of protruding electrodes 217, 219, 227, and 229 which are connected to both ends of the parallel electrodes 215 and 225 and protrude in the direction of the electrode lines 211 and 221.

Since each of the sustain electrodes 210 and 220 of FIG. 6 is substantially similar to each of the sustain electrodes 110 and 120 of FIG. 5, only the differences will be described below.

The plurality of protruding electrodes 217, 219, 227, and 229 of FIG. 6 are connected to and extended to both ends of the parallel electrodes 215 and 225, thereby starting between the parallel electrodes 215 and 225, and connecting electrodes 213 and 223 and electrode lines 211 and 221. Since the discharge which is enlarged in the direction of ()) also expands along the plurality of protruding electrodes 217, 219, 227, and 229, the discharge enlargement becomes easier. Thus, the discharge efficiency is improved.

Meanwhile, the plurality of protruding electrodes 217, 219, 227, and 229 of FIG. 6 may protrude in a direction orthogonal to the electrode lines 211 and 221. Accordingly, the enlargement of discharge at the protruding electrodes 217, 219, 227, and 229 is enlarged in the direction orthogonal to the electrode lines 211, 221.

7 is a diagram illustrating an electric field distribution in a discharge cell according to the electrode structure of FIG. 6.

Referring to the drawings, each of the sustain electrodes 260 and 270 of FIG. 7A is formed of a single layer, and includes a plurality of electrode lines 261, 262, 271, 272, connecting electrodes 264, 274, and the like that cross the discharge cells. And protruding electrodes 266 and 276.

Meanwhile, as shown in FIG. 6, the sustain electrode of FIG. 7B includes electrode lines 211 and 221, connecting electrodes 213 and 223, parallel electrodes 215 and 225, and a plurality of protruding electrodes 217, 219, 227, and 229 that cross the discharge cells. Include.

Referring to the electric field distribution of FIG. 7A, a constant electric field is disposed between the electrode lines 262 and 272 facing each other at the center of the discharge cell, but the electric field is significantly concentrated at the portion where the protruding electrodes 266 and 276 are formed. . Due to the structure of the protruding electrodes 266 and 276, the discharge tends to be concentrated between the protruding electrodes 266 and 276, so that the discharge volume is small, and further, the short phenomenon or the protruding electrode (between the protruding electrodes 266 and 276) is caused. 266,276) wear occurs.

On the other hand, Figure 7 (b) is a constant electric field is formed between the parallel electrodes (215 and 225), the discharge between the sustain electrode (210, 220) is initiated between the parallel electrodes (215 and 225) where a constant electric field is concentrated. In this case, the connection electrodes 213 and 223 are enlarged in the direction of the electrode lines 211 and 221, and the protrusion electrodes 266 and 276 extend in the direction of the electrode lines 211 and 221. In addition, a short phenomenon or wear phenomenon due to protruding from the sustain electrodes 210 and 220 does not occur.

FIG. 8 is a schematic cross-sectional view of an electrode structure formed on an upper substrate of a plasma display panel according to an embodiment of the present invention. The structure of a sustain electrode pair formed in one discharge cell of the plasma display panel shown in FIG. It is a simplified illustration of the bay.

Referring to FIG. 8, the sustain electrodes 310 and 320, that is, the scan electrode and the sustain electrode according to the exemplary embodiment of the present invention are formed in a symmetrical pair on the substrate with respect to the center of the discharge cell. Here, the discharge cells include sustain electrodes 310 and 320, horizontal partitions 302 and 304, vertical partitions 306 and 308, address electrodes (not shown) and phosphors (not shown).

Each of the sustain electrodes 310 and 320 may be formed of a single layer, and may include electrode lines 311 and 321 crossing the discharge cells, connection electrodes 313 and 323, and parallel electrodes 315 and 325. In addition, each of the sustain electrodes 310 and 320 of FIG. 8 may further include a plurality of protruding electrodes 317, 319, 327, and 329 which are connected to both ends of the parallel electrodes 315 and 325 and protrude toward the electrode lines 311 and 321.

Since each of the sustain electrodes 310 and 320 of FIG. 8 is substantially similar to each of the sustain electrodes 110 and 120 of FIG. 5, only the differences will be described below.

The plurality of protruding electrodes 317, 319, 327, and 329 of FIG. 8 are connected to and extended to both ends of the parallel electrodes 315 and 325, thereby starting between the parallel electrodes 315 and 325, and connecting electrodes 313 and 323 and electrode lines 311 and 321. The discharge that is expanded in the direction also expands along the plurality of protruding electrodes 317, 319, 327, and 329, so that the discharge enlargement becomes easier. Thus, the discharge efficiency is improved.

Meanwhile, the plurality of protruding electrodes 317, 319, 327, and 329 of FIG. 8 may protrude in a direction intersecting the electrode lines 311 and 321 at an angle. Therefore, the enlargement of discharge at the protruding electrodes 317, 319, 327, and 329 is enlarged in a direction crossing the electrode lines 311 and 321 at an angle.

FIG. 9 is a schematic cross-sectional view of an electrode structure formed on an upper substrate of a plasma display panel according to an embodiment of the present invention. The structure of a sustain electrode pair formed in one discharge cell of the plasma display panel shown in FIG. It is a simplified illustration of the bay.

Referring to FIG. 9, sustain electrodes 410 and 420, that is, scan electrodes and sustain electrodes, are symmetrically paired with respect to the center of a discharge cell on a substrate. The discharge cells include sustain electrodes 410 and 420, horizontal partitions 402 and 404, vertical partitions 406 and 408, address electrodes (not shown), and phosphors (not shown).

Each of the sustain electrodes 410 and 420 may be formed of a single layer, and may include electrode lines 411 and 421 that cross the discharge cells, connection electrodes 413 and 423, and parallel electrodes 415 and 425. Each of the sustain electrodes 410 and 420 of FIG. 9 may further include a plurality of protruding electrodes 417, 419, 427, and 429 which are connected to both ends of the parallel electrodes 415 and 425 and protrude in the direction of the electrode lines 411 and 421.

Since each of the sustain electrodes 410 and 420 of FIG. 9 is substantially similar to each of the sustain electrodes 110 and 120 of FIG. 5, only the differences will be described below.

The plurality of protruding electrodes 417, 419, 427, and 429 of FIG. 9 are connected to and extended to both ends of the parallel electrodes 415 and 425, thereby starting between the parallel electrodes 415 and 425, and connecting electrodes 413, 423 and electrode lines 411 and 421. Since the discharge that expands in the direction also expands along the plurality of protruding electrodes 417, 419, 427, and 429, the discharge enlargement becomes easier. Thus, the discharge efficiency is improved.

Meanwhile, the plurality of protruding electrodes 417, 419, 427, and 429 of FIG. 9 may be formed to be bent in the direction of the electrode lines 411 and 421. Therefore, the enlargement of the discharge at the protruding electrodes 417, 419, 427, and 429 is enlarged in the direction in which the electrode lines 411 and 421 are bent.

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 of the embodiments of the present invention will not depart from the scope 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 of an electrode structure formed on an upper substrate of a plasma display panel according to an exemplary embodiment of the present invention.

6 is a cross-sectional view of an electrode structure formed on an upper substrate of a plasma display panel according to an exemplary embodiment of the present invention.

7 is a diagram illustrating an electric field distribution in a discharge cell according to the electrode structure of FIG. 6.

8 is a cross-sectional view of an electrode structure formed on an upper substrate of a plasma display panel according to an embodiment of the present invention.

9 is a cross-sectional view of an electrode structure formed on an upper substrate of a plasma display panel according to an exemplary embodiment of the present invention.

Claims (10)

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. The first electrode may include a first electrode line formed of a single layer and formed in a direction crossing the third electrode; A first parallel electrode formed in a direction parallel to the first electrode line; And a first connection electrode connecting the first electrode line and the first parallel electrode. The method of claim 1, The first electrode may further include first and second protruding electrodes connected to both ends of the first parallel electrode to protrude in the direction of the first electrode line. The method of claim 2, And the first and second protruding electrodes protrude in a direction perpendicular to the first electrode line. The method of claim 2, And the first and second protruding electrodes protrude in a direction intersecting the first electrode line at an angle. The method of claim 2, And the first and second protruding electrodes are bent to form the plasma display device. The method of claim 1, The second electrode may include a second electrode line formed of a single layer and formed in a direction crossing the third electrode; A second parallel electrode formed in a direction parallel to the second electrode line; And a second connection electrode connecting the second electrode line and the second parallel electrode. The method of claim 6, And the second electrode further comprises third and fourth protruding electrodes connected to both ends of the second parallel electrode to protrude in the direction of the second electrode line. The method of claim 7, wherein And the third and fourth protruding electrodes protrude in a direction orthogonal to the second electrode line. The method of claim 7, wherein And the third and fourth protruding electrodes protrude in a direction crossing obliquely to the second electrode line. The method of claim 7, wherein And the third and fourth protruding electrodes are bent to form the plasma display device.

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