KR20110035022A - Multi plasma display panel device - Google Patents

Abstract

PURPOSE: A multi plasma display device is provided to reduce manufacturing process of a sub-electrode by contacting an electrode and a sub-electrode. CONSTITUTION: A plurality of plasma display panels in which an upper plate and a lower plate are attached is connected. The plasma display panel is stitched up between the upper plate and the lower substrate in outermost shell area with a suture material(260). An electrode and a sub-electrode are included in a first side end. An electrode is arranged on upper surface unit until one surface of a first side ned(d1). An sub electrode(250) is arranged on one part of the rear surface fo the lower substrate and one surface of the first side end.

Description

Multi plasma display panel device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-plasma display device, and more particularly, to a multi-plasma display device having an improved electrode structure in a core region in which a plurality of plasma display panels are connected.

In general, a plasma display device (hereinafter referred to as a “PDP”) is a flat panel display device that displays an image using plasma discharge, and has a high response speed and is suitable for displaying a large area image. And indoor / outdoor advertising displays.

In the plasma display apparatus, first and second electrodes formed on the effective area of the upper substrate and a third electrode intersecting the first and second electrodes are formed on the lower substrate, and one partition wall is formed between the upper substrate and the lower substrate. And a plasma display panel constituting a discharge cell of which contains a main discharge gas such as neon (Ne), helium (He), or a mixture of neon and helium (Ne + He) and a small amount of xenon. Inert gas 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.

Recently, research has been conducted to overcome the limitations of the implementation of a large screen, and thus a method of realizing a large screen by two-dimensionally connecting a plurality of plasma display apparatuses has been proposed.

Accordingly, research is being conducted to reduce the size of the seam region by improving the electrode structure in the seam region where adjacent plasma display apparatuses are connected to each other.

SUMMARY OF THE INVENTION An object of the present invention is to provide a multi-plasma display device having an improved electrode structure in a shim region in which a plurality of plasma display panels are connected to each other, so that the size of the shim region and electrode formation are easy.

In the multi-plasma display device of the present invention, a plurality of plasma display panels are bonded to an upper substrate and a lower substrate, and the plasma display panel is sealed between the upper substrate and the lower substrate with an encapsulant in an outermost region. And an electrode disposed on the upper substrate up to a cross section of the first side end portion and a cross section of the first side end portion and the lower substrate at a first side end portion of the plasma display panel adjacent to a first core region of the outermost region. It is disposed on the rear portion of the, and includes an auxiliary electrode in contact with the cross section of the electrode.

In the multi-plasma display device of the present invention, the electrode and the electrode disposed at the end of the first side of the plasma display panel and the auxiliary electrode disposed on the end surface and the rear part of the lower substrate are formed in advance, and the electrode is brought into contact with the electrode. It is possible to reduce the manufacturing process of the auxiliary electrode in contact with the phase, thereby reducing the incidence of defects for the auxiliary electrode.

Hereinafter, a multi-plasma display device according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view showing a multi-plasma display device according to the present invention.

Referring to FIG. 1, in the multi-plasma display apparatus 100, the first to fourth plasma display apparatuses A, B, C, and D are connected to each other in the first and second core regions seam1 to seam2. You will implement a large screen.

Here, each of the first to fourth plasma display apparatuses A, B, C, and D constitutes a split screen through individual operations when an image is implemented, and the first to fourth plasma display apparatuses A, B, C, and D are configured. ) Controls the other plasma display device.

That is, each of the first to fourth plasma display devices A, B, C, and D constitutes an individual driver (not shown).

The seam areas seam1 to seam2 are formed to have the same width, and it is preferable that the seam areas seam1 to seam2 do not exist as much as possible.

FIG. 2 is a perspective view illustrating a structure of a plasma display panel included in the first to fourth plasma display devices shown in FIG. 1.

Referring to FIG. 2, the plasma display panel includes a scan electrode 11, a sustain electrode 12, and an address electrode 22 formed on the lower substrate 20, which are pairs of sustain electrodes formed on the upper substrate 10. It includes.

The sustain electrode pairs 11 and 12 typically include transparent electrodes 11a and 12a and bus electrodes 11b and 12b formed of indium tin oxide (ITO), and the bus electrodes 11b and 12b. ) May be formed of a metal such as silver (Ag), chromium (Cr) or a stack of chromium / copper / chromium (Cr / Cu / Cr) or a stack of chromium / aluminum / chromium (Cr / Al / Cr). The bus electrodes 11b and 12b are formed on the transparent electrodes 11a and 12a to serve to reduce voltage drop caused by the transparent electrodes 11a and 12a having high resistance.

Meanwhile, according to the first embodiment of the present invention, the sustain electrode pairs 11 and 12 have not only a structure in which the transparent electrodes 11a 12a and the bus electrodes 11b and 12b are stacked, but also without the transparent electrodes 11a and 12a. Only the bus electrodes 11b and 12b may be constituted. This structure does not use the transparent electrodes (11a, 12a), there is an advantage that can lower the cost of manufacturing the panel. The bus electrodes 11b and 12b used in this structure may be various materials such as photosensitive materials in addition to the materials listed above.

Light between the scan electrodes 11 and the sustain electrodes 12 between the transparent electrodes 11a and 12a and the bus electrodes 11b and 11c to absorb external light generated outside the upper substrate 10 to reduce reflection. Black stripes (black matrix, BM, 15) are arranged that serve to block and to improve the purity and contrast of the upper substrate 10.

The black stripe 15 according to the present invention is formed on the upper substrate 10, the first black stripe 15 formed at a position overlapping the partition wall 21, the transparent electrodes 11a and 12a and the bus electrode ( The second black stripes 11c and 12c may be formed between 11b and 12b. Here, the first black stripes 15 and the second black stripes 11c and 12c, which are also referred to as black layers or black electrode layers, may be simultaneously formed and physically connected in the formation process, or may not be simultaneously connected to each other. .

In addition, when physically connected and formed, the first black stripes 15 and the second black stripes 11c and 12c may be formed of the same material, but may be formed of different materials when they are physically separated.

The upper dielectric layer 13 and the passivation layer 14 are stacked on the upper substrate 10 having the scan electrode 11 and the sustain electrode 12 side by side. Charged particles generated by the discharge are accumulated in the upper dielectric layer 13, and the protective electrode pairs 11 and 12 may be protected. The protective film 14 protects the upper dielectric layer 13 from sputtering of charged particles generated during gas discharge, and increases emission efficiency of secondary electrons.

In addition, magnesium oxide (MgO) may be generally used for the protective film 14, and Si-MgO to which silicon (Si) is added may be used.

Here, the content of silicon (Si) added to the protective film 14 may be 60PPM to 200PPM based on the weight percent.

On the other hand, the address electrode 22 is formed in the direction crossing the scan electrode 11 and the sustain electrode 12. In addition, the lower dielectric layer 23 and the partition wall 21 are formed on the lower substrate 20 on which the address electrode 22 is formed.

In addition, the phosphor layer 23 is formed on the surfaces of the lower dielectric layer 24 and the partition wall 21. The partition wall 21 has a vertical partition wall 21a and a horizontal partition wall 21b formed in a closed shape, and physically distinguishes discharge cells, and prevents ultraviolet rays and visible light generated by the discharge from leaking into adjacent discharge cells.

In addition to the structure of the partition wall 21 shown in FIG. 2 of the present invention, the structure of the partition wall 21 of various shapes will be possible. For example, a channel in which a channel usable as an exhaust passage is formed in at least one of the differential partition structure, the vertical partition 21a, or the horizontal partition 21b having different heights of the vertical partition 21a and the horizontal partition 21b. A grooved partition structure having a groove formed in at least one of the type partition wall structure, the vertical partition wall 21a, or the horizontal partition wall 21b may be possible.

Here, in the case of the differential partition wall structure, the height of the horizontal partition wall 21b is more preferable, and in the case of the channel partition wall structure or the groove partition wall structure, it is preferable that a channel is formed or the groove is formed in the horizontal partition wall 21b. something to do.

In the present invention, although the R, G and B discharge cells are shown and described as being arranged on the same line, it may be arranged in other shapes. For example, a Delta type arrangement in which R, G, and B discharge cells are arranged in a triangular shape may be possible. In addition, the shape of the discharge cell may be not only rectangular, but also various polygonal shapes such as a pentagon and a hexagon.

In addition, the phosphor layer 23 emits light by ultraviolet rays generated during gas discharge to generate visible light of any one of red (R), green (G), and blue (B). Here, an inert mixed gas such as He + Ze, Ne + Ze, and He + Ne + Ze for discharging is injected into the discharge space provided between the upper / lower substrates 10 and 20 and the partition wall 21.

FIG. 3 is a schematic diagram showing an electrode arrangement of the plasma display panel shown in FIG. 2.

Referring to FIG. 3, the 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 Z1 to Zn, 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 Z1 to Zn may be driven by being divided into odd-numbered lines and even-numbered lines, or sequentially driven.

Since the electrode arrangement shown in FIG. 3 is only a first 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. 3. 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 Z1 to Zn may be driven by being divided up and down or left and right in the center portion of the panel.

FIG. 4 is a timing diagram for a method of time division driving by dividing one frame into a plurality of subfields for driving the plasma display panel shown in FIG. 2.

The unit frame may be divided into a predetermined number, for example, eight subfields SF1, ..., SF8 to realize time division gray scale display. Further, each subfield SF1, ... SF8 is divided into a reset section (not shown), an address section A1, ..., A8, and a sustain section S1, ..., S8.

According to 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 Z, and a scan pulse corresponding to each scan electrode Y is 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.

FIG. 5 is a timing diagram illustrating a drive signal for driving the plasma display panel shown in FIG. 2.

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 a positive data signal is simultaneously applied to the address electrode Z. 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.

The plurality of scan electrodes Y according to the present invention 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 located above and a second group located 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 eZponential 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. 5 are a first embodiment of signals for driving the plasma display panel according to the present invention. The present invention is not limited to the waveforms shown in FIG. 5. For example, the pre-reset period may be omitted, and the polarity and the voltage level of the driving signals illustrated in FIG. 5 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.

The driving section of the plasma display panel may be divided into a power-on sequence section and a normal operation section. The waveforms of the driving signals supplied from the power-on sequence section and the normal operation section may be the same or different as necessary.

That is, when power is supplied to the plasma display device (Power ON), a power-on for preparing a normal operation of the device without displaying an image on the panel for a predetermined time or until the driving voltage to be supplied to the panel reaches a normal level. A power on sequence is performed. Thereafter, the image is displayed by the driving signals supplied to the panel in the normal operation section.

In addition, even before the power supply to the plasma display device is cut off, a power on sequence similar to the power on sequence exists to smoothly terminate the power supply to the driving circuit or the panel.

For example, during a certain period of time after power is supplied to the plasma display device, the data signal is not applied to the panel because the dispaly enable signal has a value of "0" which is a low level. Thus, no image is displayed on the panel. After the predetermined time has elapsed, if the disabling enable signal has a value of "1" which is a high level, the data signal is applied to the panel, and the image is displayed on the panel. In addition, during a predetermined time before the power supply to the plasma display device is terminated, the disabling enable signal again has a low level of "0", and thus no image is displayed on the panel.

FIG. 6 is a front view showing a plasma display panel according to a first embodiment of the present invention, FIG. 7 is a perspective view showing 'A' shown in FIG. 6, and FIG. 8 is a side view of the 'B' direction of FIG. 7. .

Referring to FIG. 6, the plasma display panel 200 includes an upper substrate 10 in which the first and second electrodes 212 and 214 are formed in parallel with each other, and a partition wall 240 partitioning the discharge cells P. Referring to FIG. The lower substrate 220 is bonded to each other at predetermined intervals.

The plasma display panel 200 is divided into an effective area (not shown) for displaying an image and an outermost area surrounding the circumference of the effective area.

In this case, the outermost area includes first and second seam areas seam1 and seam2 connected to other plasma display panels (not shown).

Here, the first and second seam regions seam2 and seam2 may have different widths. That is, since the auxiliary electrode 250 connected to the second electrode 214 is disposed in the first seam region seam 1, the width of the auxiliary seam seam 2 is greater than that of the second seam region seam 2.

That is, the first and second seam regions seam1 and seam2 are connected to other plasma display panels at the first and second side ends d1 and d2 from which the plasma display panel 200 is cut.

First, the partition wall 240 is formed in a closed shape, and partitions the discharge cell P through the horizontal partition wall 242 and the vertical partition wall 244.

In addition, a black stripe (not shown) is formed on the upper substrate 210, and the black stripe formed in the outermost area in a closed manner may be different from the width of the black stripe formed in the effective area.

Here, the first and second electrodes 212 and 214 extend in different directions, and are connected to a driving unit (not shown) disposed on the bottom of the lower substrate 220 of the plasma display panel 200, and the driving voltage from the driving unit. Is supplied.

In this case, the second electrode 214 is connected to the driving unit by an auxiliary electrode 250 disposed in the cross section of the first side end d1 of the first core region seam1 of the plasma display panel 200.

Referring to FIGS. 7 and 8, the second electrode 214 is disposed on the first side end d1 of the plasma display panel 200 up to the end surface of the upper substrate 210, and the upper substrate 210 and the lower substrate. The cross section of the substrate 220 is located on the same line as the first side end d1.

In this case, the encapsulant 260 is sealed between the upper substrate 210 and the lower substrate 220, and is sealed to the first side end d1.

Here, the auxiliary electrode 250 is disposed on the cross section of the first side end portion d1 and a part of the rear surface of the lower substrate 220 and is in contact with the cross section of the second electrode 214.

That is, the auxiliary electrode 250 is disposed on a portion of the rear surface of the side electrode 252 and the lower substrate 220 disposed on the end surface of the first side end portion d1, the encapsulant 260, and the second electrode 214. The back electrode 254 is included.

Here, the end surface of the side electrode 252 is in contact with the end surface of the second electrode 214 at the first side end d1 and may be disposed on a portion of the end surface of the upper substrate 210.

In addition, the thickness of the side electrode 252 is the same as at least one of the thicknesses of the second electrode 214 and the back electrode 254. That is, since the cross-sections of the upper substrate 210, the lower substrate 220, and the encapsulant 260 are located on the same line in the cross section of the first side end portion d1, the side electrode 252 and the back electrode 254 are located on the same line. ) Would have the same thickness.

In addition, since the auxiliary electrode 250 is generated in the manufacturing process of the first and second electrodes 212 and 214, the thickness thereof may be the same as at least one of the first and second electrodes 212 and 214.

In addition, the auxiliary electrode 250 may be disposed to contact each of the second electrodes 214 independently, and may be integrally contacted with the entire second electrode 214.

In addition, when the auxiliary electrode 250 is integrally contacted with the entire second electrode 214, the second electrode 214 may be a sustain electrode used as a common electrode.

FIG. 9 is a perspective view of a second embodiment of 'A' shown in FIG. 6, and FIG. 10 is a side view of the 'B' direction of FIG. 9.

9 and 10, in the first side end d1 of the plasma display panel 200, the second electrode 214 is disposed up to the end surface of the upper substrate 210, and the upper substrate 210 and the lower substrate are disposed. The cross section of the substrate 220 is located on the same line as the first side end d1.

In this case, the encapsulant 260 is sealed between the upper substrate 210 and the lower substrate 220, and is sealed in the first side end d1.

That is, after the encapsulant 260 is sealed between the upper substrate 210 and the lower substrate 220, the encapsulant 260 is firstly cut as the plasma display panel 200 is cut in the first seam region seam1. The case where it does not reach side edge d1 arises.

In this case, the auxiliary electrode 250 is disposed on the end surface of the first side end portion d1, the end surface of the encapsulant 260, and a portion of the rear surface of the lower substrate 220 and is in contact with the end surface of the second electrode 214.

That is, the auxiliary electrode 250 is disposed on a portion of the rear surface of the side electrode 252 and the lower substrate 220 disposed on the end surface of the first side end portion d1, the encapsulant 260, and the second electrode 214. The back electrode 254 is included.

Here, the end surface of the side electrode 252 is in contact with the end surface of the second electrode 214 at a first thickness b1 at the first side end d1 and may be disposed on a portion of the end surface of the upper substrate 210.

In addition, a portion of the side electrode 252 contacting the end surface of the encapsulant 260 is formed to have a second thickness b2. That is, the suture 260 is sealed in the first side end d1 so that the thickness in contact with the suture 260 is in contact with the end surfaces of the upper substrate 210 and the lower substrate 220. It is formed thicker than the thickness b1.

The first thickness b1 of the side electrode 252 is the same as at least one of the thicknesses of the second electrode 214 and the back electrode 254. That is, since the cross-sections of the upper substrate 210 and the lower substrate 220 are located on the same line in the cross section of the first side end portion d1, the side electrode 252 and the back electrode 254 have the same thickness. Would be nice.

The auxiliary electrode 250 may be disposed to be in contact with each of the second electrodes 214 independently, and may be integrally contacted with the entire second electrode 214.

In addition, when the auxiliary electrode 250 is integrally contacted with the entire second electrode 214, the second electrode 214 may be a sustain electrode used as a common electrode.

FIG. 11 is a perspective view of a third embodiment of 'A' shown in FIG. 6, and FIG. 12 is a side view of the 'B' direction of FIG. 11.

11 and 12 briefly describe or omit the contents overlapping with FIGS. 7 and 8, 9, and 10.

11 and 12, in the first side end d10 of the plasma display panel 300, the second electrode 314 is disposed to the end surface of the upper substrate 310, and the end surface of the upper substrate 310 is disposed. It is located on the same line as, and does not coincide with the cross section of the lower substrate 320.

That is, the upper substrate 310 is closer to the first seam region seam1 than the lower substrate 320.

The encapsulant 360 is sealed between the upper substrate 210 and the lower substrate 220, and is sealed to the same line as the cross section of the lower substrate 320. However, the encapsulant 360 may be sealed in the cross section of the lower substrate 320.

Here, the auxiliary electrode 350 has a cross section of the first side end d1, that is, a portion of the cross section of the upper substrate 310, a cross section of the second electrode 314, a cross section of the encapsulant 360, and a lower substrate 320. It is disposed on the cross section and the rear part of the.

That is, the auxiliary electrode 350 includes a portion of a cross section of the upper substrate 310, a cross section of the second electrode 314, a cross section of the encapsulant 360, and a side electrode 352 and a lower portion disposed on the cross section of the lower substrate 320. The back electrode 354 is disposed on a portion of the back surface of the substrate 320.

Here, the end surface of the side electrode 352 is in contact with the end surface of the second electrode 314 at the first side end d10 and may be disposed on a part of the end surface of the upper substrate 210.

In addition, the side electrodes 352 are disposed along the rear surface of the upper substrate 310 to have the same thickness and disposed on the end surface of the encapsulant 360 and the end surface of the lower substrate 320.

That is, the side electrode 352 has at least one bending, and thus it can be seen that the side electrode 352 is disposed on the end surface of the encapsulant 360 and the lower substrate 320 through a portion of the rear surface of the upper substrate 310.

The multi-plasma display device of the present invention forms a cross section of an electrode disposed at the end surface of the first side end portion of the plasma display panel, a cross section of the encapsulant, and an auxiliary electrode disposed at a portion of the back surface of the plasma display panel, thereby providing a driving voltage supplied to the electrode. The resistance loss can be prevented, and by arranging the auxiliary electrode at the end surface of the first side in a prefabricated state, the manufacturing process can be simplified, and the facility investment cost and the space for the manufacturing process can be reduced.

 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. Accordingly, modifications to future embodiments of the present invention will not depart from the technology of the present invention.

1 is a schematic view showing a multi-plasma display device according to the present invention.

FIG. 2 is a perspective view illustrating a structure of a plasma display panel included in the first to fourth plasma display devices shown in FIG. 1.

FIG. 3 is a schematic diagram showing an electrode arrangement of the plasma display panel shown in FIG. 2.

FIG. 4 is a timing diagram for a method of time division driving by dividing one frame into a plurality of subfields for driving the plasma display panel shown in FIG. 2.

FIG. 5 is a timing diagram illustrating a drive signal for driving the plasma display panel shown in FIG. 2.

6 is a front view illustrating a plasma display panel according to a first embodiment of the present invention.

FIG. 7 is a perspective view illustrating 'A' illustrated in FIG. 6.

FIG. 8 is a side view of the 'B' direction of FIG. 7.

9 is a perspective view according to a second embodiment of 'A' shown in FIG. 6.

FIG. 10 is a side view of the 'B' direction of FIG. 9.

FIG. 11 is a perspective view according to a third embodiment of 'A' shown in FIG. 6.

FIG. 12 is a side view of the 'B' direction of FIG. 11.

Claims (9)

A plurality of plasma display panels are bonded to the upper substrate and the lower substrate, The plasma display panel, In the outermost region, between the upper substrate and the lower substrate is sealed with a suture, At an end of the first side of the plasma display panel adjacent to a first core region of the outermost region, An electrode disposed on the upper substrate up to a cross section of the first side end portion; And And an auxiliary electrode disposed on an end surface of the first end portion and a portion of a rear surface of the lower substrate and in contact with an end surface of the electrode. The method of claim 1, wherein the cross section of the upper substrate and the lower substrate, And being positioned on the same line at the first side end portion or on a different line at the first side end portion. The method of claim 2, The encapsulant is sealed to the end face of the first side end portion, The auxiliary electrode, A side electrode disposed at a cross section of the first side end portion; And And a rear electrode disposed on a portion of a rear surface of the lower substrate. The thickness of the side electrode, And the thickness of at least one of the electrode and the back electrode. The method of claim 2, The encapsulant is sealed in the cross section inside the first side end portion, The auxiliary electrode, A side electrode disposed at a cross section of the first side end portion and a cross section of the encapsulant; And And a rear electrode disposed on a portion of a rear surface of the lower substrate. The method of claim 5, wherein the side electrode, And a second thickness at a cross section of the first side end portion and a second thickness at a cross section of the encapsulant. The method of claim 6, wherein the first thickness is, And less than the second thickness. The method of claim 6, wherein the first thickness is, And the thickness of at least one of the electrode and the back electrode. The method of claim 6, wherein the second thickness is, And a distance between the first side end portion and the end portion of the encapsulant.

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