KR100637234B1 - Plasma display panel - Google Patents

Abstract

A plasma display panel is provided to reduce defects of discharge electrodes by supporting stably discharge electrodes by using dummy barrier ribs and conductive connection members. A first and second substrates(210,220) are disposed opposite to each other. A first barrier rib(214) is disposed between the first and second substrates in order to define a plurality of discharge cells. A second barrier rib(224) is disposed between the first barrier rib and the second substrate in order to define the discharge cells. A part of the first barrier rib is projected to the outside. A dummy barrier rib(241) is disposed between the projected part of the first barrier rib and the second substrate. Each of discharge electrodes includes a discharge part(261) for causing discharge at the discharge cells, a terminal part(263) connected electrically with a signal transfer unit, a first connective part(262) extended from discharge part to the second substrate, and a terminal connection part(264) connected with the first connective part. A conductive connection member(251) is disposed between the connective part and the terminal connection part.

Description

Plasma display panel {Plasma display panel}

1 is an exploded perspective view of a conventional plasma display panel.

2 is a partially cutaway perspective view of the plasma display panel according to the first embodiment of the present invention.

3 is a cross-sectional view taken along line III-III of FIG. 2.

4 is a cross-sectional view taken along line IV-IV of FIG. 2.

FIG. 5 is a layout view of the discharge cells and first and second discharge electrodes illustrated in FIG. 2.

6 is a partially cutaway perspective view of the plasma display panel according to the second embodiment of the present invention.

7 is a cross-sectional view taken along the line VII-VII of FIG. 6.

8 is a cross-sectional view taken along the line VII-VII of FIG. 6.

FIG. 9 is a cross-sectional view taken along the line VII-VII of FIG. 6.

FIG. 10 is a layout view illustrating discharge cells, first and second discharge electrodes, and address electrodes illustrated in FIG. 6.

<Brief description of symbols for the main parts of the drawings>

100, 200, 300: Plasma Display Panel

210, 310: first substrate 214, 314: first bulkhead

215, 315: protective layer 220, 320: second substrate

224, 324: second partition 225, 325: phosphor layer

241, 242, 341, 342, 343: dummy bulkhead

251, 252, 351, 352, 353: conductive connecting member

260, 360: first discharge electrode 270, 370: second discharge electrode

261, 271, 361, 371, 381: discharge part

262, 272, 362, 372, 382: connection

263, 273, 363, 373, 383: terminal section

264, 274, 364, 374, 384: terminal connection

The present invention relates to a plasma display panel.

In recent years, the plasma display panel (PDP), which is drawing attention as a replacement for the conventional cathode ray tube display device, is discharged after a discharge gas is filled between two substrates on which a plurality of discharge electrodes are formed. Due to this, the phosphor formed in a predetermined pattern is excited by the generated ultraviolet rays to obtain a desired image.

1 shows a plasma display panel 100 similar to that disclosed in Japanese Laid-Open Patent Publication No. 1998-172442. The plasma display panel 100 includes a first substrate 101, sustain electrodes 106 and 107 disposed on the first substrate 101, a first dielectric layer 109 covering the sustain electrodes, and the first substrate 101. A protective layer 111 covering the dielectric layer, a second substrate 115 disposed to face the first substrate 101, and address electrodes 117 disposed parallel to each other on the second substrate 115, A second dielectric layer 113 covering the address electrodes 117, a partition wall 114 formed on the second dielectric layer 113, a phosphor layer formed on an upper surface of the second dielectric layer 113 and a side surface of the partition wall 114. 110.

However, in the above-described general plasma display panel 100, visible light emitted from the phosphor layer 110 is formed on the lower electrodes of the first substrate 101, the sustain electrodes 106 and 107, and the electrodes ( A large portion (approximately 40%) is absorbed by the first dielectric layer 109 and the protective layer 111 covering the 106 and 107, thereby causing a problem of low luminous efficiency. In addition, when the conventional three-electrode surface discharge plasma display panel 100 displays the same image for a long time, the phosphor layer 110 may be permanently sputtered by ion sputtering by charged particles of discharge gas. There was a problem causing phosphorus afterimages.

In order to solve this problem, Korean Patent Laid-Open Publication No. 2005-40635 discloses a plasma display panel which increases brightness and luminous efficiency by discharging the discharge electrodes by arranging the discharge electrodes on the side surfaces of the partition walls.

However, as described above, in the structure in which the discharge electrodes are disposed on the side surface of the partition wall, only the terminal portion of the discharge electrode connected to the external signal transmission means is exposed to the outside of the partition wall. In the process of connecting and installing the signal transmission means, a problem occurs that the terminal portion of the electrode is broken.

In order to solve the above problems, an object of the present invention is to provide a plasma display panel having a structure in which the discharge electrode can be stably maintained.

In order to achieve the above object and other objects, the present invention is disposed between the first substrate and the second substrate, and the first substrate and the second substrate disposed to face each other at a predetermined interval, a plurality of discharge A first partition partitioning the cells and the first partition wall and the second substrate, the discharge cells are partitioned together with the first partition wall, and at least one side surface of the first partition wall protrudes to the outside A second partition wall, a dummy partition wall disposed between the protruding portion of the first partition wall and the second substrate, and discharges from the discharge cells, and is embedded in the first partition wall to protrude from the first partition wall A discharge portion extending substantially parallel to the adjacent portion, a terminal portion formed on the second substrate and electrically connected to an external signal transmission means, extending from the discharge portion in the direction of the second substrate; A first connection part exposed to one side of the first partition wall facing the second substrate, one end of which is electrically connected to the first connection part, and a second connection part of which is connected to the terminal part through the dummy partition wall; It provides a plasma display panel including a discharge electrode having a and a conductive connection member disposed between the first connection portion and the second connection portion to reinforce the electrical connection between the first connection portion and the second connection portion. .

In the present invention, the conductive connecting member preferably comprises a conductive epoxy, wherein the conductive epoxy preferably comprises silver.

In the present invention, the height of the dummy partition wall is preferably substantially the same as the height of the second partition wall.

(First embodiment)

The plasma display panel 200 according to the first embodiment of the present invention will be described in detail with reference to FIGS. 2 to 5.

2 is a partially cutaway perspective view of the plasma display panel 200 according to the first exemplary embodiment of the present invention, and FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 2. 4 is a cross-sectional view taken along line IV-IV of FIG. 2, and FIG. 5 is a layout view of the discharge cells 230 and the first and second discharge electrodes 260 and 270 illustrated in FIG. 2. .

The plasma display panel 200 may include the first substrate 210, the second substrate 220, the first discharge electrodes 260, the second discharge electrodes 270, the first partition 214, and the second partition wall ( 224, protective layers 215, phosphor layers 225, first and second pile partitions 241 and 242, first and second conductive connecting members 251 and 252, and discharge gas (not shown). ).

The first substrate 210 is usually made of a material having excellent light transmittance mainly containing glass. However, the first substrate 210 may be colored in order to improve the bright room contrast by reducing the reflected luminance. In addition, the second substrate 220 is disposed to face away from the first substrate 210 at predetermined intervals, and is made of a material having excellent light transmittance such as glass. The second substrate 220 may also be colored similarly to the first substrate 210.

In the present embodiment, visible light generated in the discharge cells 230 may be emitted to the outside through the first substrate 210 and / or the second substrate 220. In this case, sustain electrodes 106 and 107 that existed in the first substrate 101 of the plasma display panel 100 of FIG. 1 are formed on the first substrate 210 and / or the second substrate 220 on which visible light is projected. ), Since the first dielectric layer 109 and the protective layer 111 do not exist, the front transmittance of visible light is remarkably improved. Therefore, when the plasma display panel 200 according to the present invention implements an image with a conventional level of brightness, the first and second discharge electrodes 260 and 270 may be driven at a relatively low voltage.

The first partition wall 214 partitioning the plurality of discharge cells 230 is disposed between the first substrate 210 and the second substrate 220. In the present embodiment, dummy cells (not shown) formed to surround the outermost discharge cells 230 and substantially not implementing an image are not shown. However, the present invention is not limited thereto, and the first partition wall 214 may be divided into not only discharge cells 230 but also dummy cells (not shown). In addition, in this embodiment, the first partition 214 is shown as partitioning the discharge cells 230 having a circular cross section, the present invention is not limited thereto. That is, the first partition wall 214 may have various patterns as long as it can partition the plurality of discharge cells 230. For example, as in the present embodiment, the cross section of the discharge cell may be formed to be a polygon, such as a triangle, a quadrangle, a pentagon, or an oval, in addition to the circular shape.

The second partition 224 is disposed between the first partition 214 and the second substrate 220. The second partition 224, together with the first partition 214, partitions the discharge cells 230. In FIG. 2, the second partition 224 partitions the discharge cells 230 having a circular cross section together with the first partition 214, but is not limited thereto, and a plurality of discharge spaces may be formed. As long as it is, it can be a variety of patterns. In addition, the first partition 214 and the second partition 224 may have a different shape, but it is preferable to have the same shape for uniformity of discharge and manufacturing convenience.

2 to 5, first discharge electrodes 260 are illustrated. The first discharge electrode 260 pairs with the second discharge electrode 270 to generate a discharge in the discharge cell 230. Each first discharge electrode 260 includes a first discharge portion 261, a first terminal portion 263, a first connection portion 262, and a first terminal connection portion 264. The first discharge part 261 extends while surrounding the discharge cells 230 embedded in the first partition 214 and disposed in one direction. The first discharge portion 261 extends adjacent to the side of the first partition portion 214a that protrudes laterally with respect to the second partition 224. In addition, the first discharge portion 261 extends substantially parallel to the first substrate 210. The first connection portion 262 is disposed at an end portion of the first discharge portion 261. The first connector 262 extends in a direction facing the second substrate 220 and extends substantially in a direction perpendicular to the first substrate 210 (-z direction). In addition, a first terminal portion 263 is disposed on the second substrate 220 to be electrically connected to an external first signal transmission means 291. The first terminal portion 263 is disposed along an edge of the second substrate 220. The first terminal portion 263 is disposed to correspond to the first discharge portion 261, respectively, and extends in a predetermined length in the inner direction of the second substrate 220, and one end disposed in the inner direction is substantially the same. Thus, the first discharge unit 261 is aligned with the end of the first discharge unit 261. The first terminal portion is electrically connected to the first connecting portion 262 by the first terminal connecting portion 264, which will be described in more detail as follows.

The first terminal portion located at the outer portion of the second substrate 220 is formed to be exposed, and the first dummy barrier rib 241 is disposed on the first terminal portion located at the inner portion of the second substrate 220. . The width of the first dummy partition wall 241 is greater than the width of the first terminal portion 263 and is formed to cover the second terminal portion 263 in the width direction. In addition, the height of the first dummy partition 241 is formed to be substantially the same as the second partition 224. A first terminal connecting portion 264 is embedded in the first dummy partition 241, one end of which is in direct contact with the first terminal portion 263, and the other end thereof is electrically connected to the first connecting portion 262. It is. In particular, a first conductive connecting member 251 is disposed between the first connecting portion 262 and the first terminal connecting portion 264. The first conductive connecting member 251 strengthens the physical connection between the first connecting portion 262 and the first terminal connecting portion 264, and has an electrical conductivity, so that the first connecting portion 262 and the first terminal are electrically conductive. Ensure electrical connection between connections 264. The first conductive connection member 251 may be a conductive epoxy or the like. The conductive epoxy has an epoxy as a parent and includes an electrically conductive metal material such as silver therein, and thus has excellent overall rigidity and electrical conductivity.

As described above, the first discharge part 261 of the first discharge electrode 260 is structurally and electrically stable by the first connection part 262, the first terminal connection part 264, and the first conductive connection member 251. It has the advantage of being connected with the first terminal portion 263.

The first terminal portion 263 is electrically connected to a first signal transmission means 291. The first signal transmitting unit 291 performs a function of electrically connecting the plasma display panel 200 and a driving circuit (not shown) of the plasma display panel. Each of the first signal transmitting means 291 is generally connected to a plurality of first terminal portions 263.

The first signal transmitting unit 291 may be a flexible printed cable (FPC), a tape carrier package (TCP), a chip on film (COF), for example. The first terminal portions 263 correspond to the one-to-one correspondences to individual conductive wires forming the flexible printed cable.

In this case, the connection between each conductive line of the first signal transmission means 291 and the first terminal portion 263 may be made by a first anisotropic conductive film 292.

4 is a schematic perspective view of the second discharge electrodes 270. The second discharge electrodes 270 extend to cross the direction in which the first discharge electrodes 260 extend, and are spaced apart from each other in the vertical direction (z direction) with respect to the first substrate 210 in the first partition wall 214. Are arranged. In this case, the second discharge electrode 270 is disposed to be closer to the first substrate 210 than the first discharge electrode 260, but the present invention is not limited thereto.

The second discharge electrode 270 includes a second discharge part 271, a second terminal part 273, a second connection part 272, and a second terminal connection part 274. The second discharge part 271 extends while surrounding the discharge cells 230 embedded in the second partition 274 and disposed in one direction. The second discharge portion 271 extends adjacent to the side of the first partition portion 214b protruding laterally with respect to the second partition 224. The second discharge part 271 is structurally and electrically stable by the second connector 272, the second terminal connector 274, the second dummy partition 242, and the second conductive connecting member 252. Since the structure connected to 273 is similar to that of the first discharge electrode 260, it is omitted here. In addition, since the material properties of the second conductive connecting member 252 are similar to those of the first conductive connecting member 251, the description thereof will be omitted.

The second terminal portion 273 is electrically connected to the second signal transmission means 293 using the second anisotropic conductive film 294, and details of the second terminal portion 273 are similar to those of the first discharge electrode 260 described above. It is omitted here.

As described above, the plasma display panel 200 according to the present invention has a two-electrode structure. Accordingly, one of the first discharge electrode 260 and the second discharge electrode 270 functions as a scan and sustain electrode, and the other function as an addressing and sustain electrode.

Since the first discharge electrodes 260 and the second discharge electrodes 270 are not directly disposed at positions that reduce the visible light transmittance, they may be formed of a conductive metal such as aluminum or copper. Therefore, since the voltage drop in the longitudinal direction is small, stable signal transmission becomes possible.

The first partition wall 214 is directly energized between the adjacent first discharge electrode 260 and the second discharge electrode 270 and the positive or negative electrons directly impact the first and second discharge electrodes 260 and 270 While preventing damage to the first and second discharge electrodes 260 and 270, it is preferable that the first and second discharge electrodes be formed of a dielectric material capable of inducing charge and accumulating wall charges.

Protective layers 215 are formed on side surfaces of the first partition wall 214. The protective layers 215 prevent the first partition 214 and the first and second discharge electrodes 260 and 270 formed of the dielectric from being damaged by the sputtering of plasma particles, and emit secondary electrons to lower the discharge voltage. Role. The protective layers 215 may be formed by applying magnesium oxide (MgO) to a side surface of the first partition wall 214 to a predetermined thickness.

Phosphor layers 225 are disposed on the side surfaces of the second partition walls 224 and the second substrate 220 between the second partition walls 224. However, the arrangement position of the phosphor layers 225 is not limited to the above description and may be arranged at various positions. For example, after grooves having a predetermined depth are formed on the first substrate 210, a phosphor layer may be disposed in the grooves.

The phosphor layers 225 have a component for generating visible light by receiving ultraviolet rays, and the phosphor layer formed in the red light emitting discharge cell includes phosphors such as Y (V, P) O ₄ : Eu, and the like. The formed phosphor layer includes phosphors such as Zn ₂ SiO ₄ : Mn, YBO ₃ : Tb, and the like, and the phosphor layer formed in the blue light emitting discharge cell includes phosphors such as BAM: Eu.

In the discharge cells 230, a discharge gas such as Ne, Xe, and the like and a mixed gas thereof is encapsulated. In the present invention including this embodiment, the discharge surface can be increased and the discharge region can be enlarged, so that the amount of plasma formed is increased, thereby enabling low voltage driving. Therefore, even when a high concentration of Xe gas is used as the discharge gas, the low voltage driving can be performed, thereby significantly improving the luminous efficiency. This solves the problem of low voltage driving when using a high concentration of Xe gas as a discharge gas in a conventional plasma display panel.

Hereinafter, a method of manufacturing the plasma display panel 200 will be described in detail.

First, a substantially flat first substrate 210 and second substrate 220 are prepared. In the case of the first substrate 210, a separate process is unnecessary, but the first terminal portions 263, the second terminal portions 273, the second partition wall 224, and the first dummy partition wall are formed on the second substrate 220. 241, second dummy barrier ribs 242 and phosphor layers 225 are required. First, the first terminal portions 263 and the second terminal portions 273 are formed along the edge using a photo etching method, a photolithography method, or the like. Thereafter, after the barrier paste is printed, the second barrier rib 224, the first dummy barrier ribs 241, and the second dummy barrier ribs 242 are formed by sandblasting or the like. Thereafter, the phosphor layer 225 is formed on the side surface of the second partition wall 224 and the second substrate 220 by using a printing method or the like. In addition, after the through-holes 241a and 242a are formed to penetrate the first and second pile barrier ribs 241 and 242 by using a sand blasting method, the through holes 241a, The electrode material is coated on the 242a to form the first terminal connectors 264 and the second terminal connectors 274.

Simultaneously with the above process, a partition sheet is prepared. The partition sheet has a shape of a first partition 214 as a whole, and the first and second discharge parts 261 and 271 and the first and second discharge electrodes 260 and 270 therein. The connecting parts 262 and 272 are formed, and a protective layer 215 is formed to cover the inner surface. The partition sheet includes a dielectric sheet 214e having first and second connectors 262 and 272, a dielectric sheet 214f having first discharge parts 261, and a dielectric sheet 214g having second connectors 272. ), The dielectric sheet 214h and the dielectric sheet 214i on which the second discharge portions 272 are formed are successively stacked.

After the first substrate 210, the second substrate 220, and the partition sheet are prepared, the first conductive connecting member 251 and the first dummy partition 241 and the second dummy partition 242 are respectively formed. The second conductive connecting members 252 are respectively applied. Thereafter, the electrode sheet and the second substrate are disposed to align the first and second connectors 262 and 272 and the first and second terminal connectors 264 and 274, respectively, and the first substrate is disposed on the electrode sheet. After the 210 is formed to form an overall structure, a process of drying and firing is performed.

In the plasma display panel 200 according to the first embodiment of the present invention having the above-described configuration, an address discharge occurs between the first discharge electrode 260 and the second discharge electrode 270, and the address discharge As a result, the discharge cell 230 in which sustain discharge is to be generated is selected. Subsequently, when an AC voltage is applied between the first discharge electrode 260 and the second discharge electrode 270 of the selected discharge cell 230, the first discharge electrode 260 and the second discharge electrode 270 are applied. Maintenance discharge occurs in the liver. Ultraviolet rays are emitted while the energy level of the discharged gas excited by this sustain discharge is lowered. The ultraviolet rays excite the phosphor layers 225 applied in the discharge cells 230. Visible light is emitted as the energy levels of the excited phosphor layers 225 are lowered, and the emitted visible light forms an image. .

In the conventional plasma display panel 100, the sustain discharge between the sustain electrodes 106, 107 occurs in the horizontal direction, the discharge area is relatively narrow. However, the sustain discharge of the plasma display panel 200 according to the present embodiment may occur not only in all aspects of defining the discharge cells 230, but also in that the discharge area is relatively large.

In addition, the sustain discharge in this embodiment is formed in a closed curve along the side of the discharge cell 230 and gradually diffuses to the center portion of the discharge cell 230. As a result, the volume of the region where the sustain discharge occurs is increased, and the space charge in the discharge cell, which is not well used in the past, also contributes to light emission. Such matters result in the improvement of the luminous efficiency of the plasma display panel. In particular, in this embodiment, since the cross section of the discharge cells 230 is circular, there is an advantage that the sustain discharge occurs uniformly on all sides of the discharge cells (230).

In addition, since the sustain discharge is performed only at the center portion of the discharge cell, ion sputtering of the phosphor by the charged particles, which has been a problem of the conventional plasma display panel 100, is prevented, thereby preventing permanent image retention even when the same image is displayed for a long time. This has the advantage that it does not occur.

Second Embodiment

FIG. 6 is a partially cutaway perspective view of the plasma display panel 300 according to the second exemplary embodiment of the present invention, and FIG. 7 is a cross-sectional view taken along the line VII-VII of FIG. 6. 8 is a cross-sectional view taken along the line VII-VII of FIG. 6, and FIG. 9 is a sectional view taken along the line VII-VII of FIG. 6. 10 is a layout view illustrating the discharge cells 330, the first and second discharge electrodes 360 and 370 and the address electrodes 380 shown in FIG. 6.

In the following description, the second embodiment will be described mainly on matters different from the first embodiment.

The plasma display panel 300 according to the present invention includes a first substrate 310, a second substrate 320, first discharge electrodes 360, second discharge electrodes 370, a first partition 314, and the like. Second barrier ribs 324, protective layers 315, phosphor layers 325, first, second and third dummy barriers 341, 342 and 343, and first, second and third conductive connection members 351, 352 and 353, and discharge gas (not shown).

The first substrate 310 is typically made of a material having excellent light transmittance mainly containing glass. However, the first substrate 310 may be colored in order to improve the bright room contrast by reducing the reflected luminance. In addition, the second substrate 320 is disposed to face away from the first substrate 310 at a predetermined interval, and is made of a material having excellent light transmittance such as glass. The second substrate 320 may also be colored similarly to the first substrate 310.

A first partition 314 partitioning the plurality of discharge cells 330 is disposed between the first substrate 310 and the second substrate 320. In the present embodiment, dummy cells (not shown) formed to surround the outermost discharge cells 330 and substantially not implementing an image are not shown. However, the present invention is not limited thereto, and the first partition 314 may be divided into not only discharge cells 330 but also dummy cells (not shown). In addition, in the present embodiment, the first partition 314 is shown to partition the discharge cells 330 having a circular cross section, but the present invention is not limited thereto. That is, the first barrier rib 314 may have various patterns as long as it can partition the plurality of discharge cells 330.

The second partition 324 is disposed between the first partition 314 and the second substrate 320. The second partition 324 together with the first partition 314 partitions the discharge cells 330. In addition, in the present embodiment, the width of the first partition 314 is formed to be wider than the width of the second partition 324, so that the side surfaces 314a, 314b, and 314c of the first partition 314 are second partitioned. It is formed so as to protrude from the side surface of 324. 6 illustrates that the second partition 324 partitions the discharge cells 330 having a circular cross section together with the first partition 314, but is not limited thereto, and a plurality of discharge spaces may be formed. As long as there are, various patterns can be. In addition, the first partition 314 and the second partition 324 may have a different shape, but it is preferable to have the same shape for uniformity of discharge and manufacturing convenience.

6, 7, and 10 illustrate the first discharge electrodes 360. The first discharge electrode 360 is paired with the second discharge electrode 370 to generate a discharge in the discharge cell 330. Each first discharge electrode 360 includes a first discharge part 361, a first terminal part 363, a first connector 362, and a first terminal connector 364. The first discharge part 361 extends while enclosing the discharge cells 330 embedded in the first partition 314 and disposed in one direction, respectively. The first discharge portion 361 extends adjacent to the side of the first partition portion 314a that protrudes laterally with respect to the second partition 324. In addition, the first discharge portion 361 extends substantially parallel to the first substrate 310. A first connection part 362 is disposed at an end of the first discharge part 361, and the first connection part 362 extends substantially in the vertical direction (-z direction) with respect to the first substrate 210. In addition, a first terminal portion 363 is disposed on the second substrate 320 to be electrically connected to an external first signal transmission means 391. The first terminal portion located at the outer portion of the second substrate 320 is formed to be exposed, and the first dummy partition 341 is disposed on the first terminal portion located at the inner portion of the second substrate 320. . The first dummy barrier rib 341 is disposed between the second substrate 320 and the protruding portion 314a of the first barrier rib 314, and has substantially the same height as the second barrier rib 324. The width of one dummy bulkhead 341 is wider than the width of the first terminal portion 363 so as to cover the second terminal portion 363 in the width direction. A first terminal connecting portion 364 is embedded in the first dummy partition 341, one end of which is in direct contact with the first terminal portion 363, and the other end of which is electrically connected to the first connecting portion 362. It is. In particular, a first conductive connecting member 351 is disposed between the first connecting portion 362 and the first terminal connecting portion 364. The first conductive connecting member 351 strengthens the physical connection between the first connecting portion 362 and the first terminal connecting portion 364, and has an electrical conductivity characteristic, so that the first connecting portion 362 and the first terminal Ensure electrical connection between connections 364. Since the material properties of the first conductive connecting member 351 are similar to those of the above-described real system, they are omitted here.

As described above, the first discharge part 361 of the first discharge electrode 360 includes the first connection part 362, the first terminal connection part 364, the first dummy partition 341, and the first conductive connection member 251. By having a structurally and electrically stable with the first terminal portion 263 has the advantage.

The first terminal portion 363 is electrically connected to the first signal transmission terminal 391 using the first anisotropic conductive film 392.

6, 8, and 10 illustrate second discharge electrodes 370. The second discharge electrodes 370 extend parallel to the direction in which the first discharge electrodes 360 extend, and are spaced apart from the first substrate 310 in the vertical direction (z direction) in the first partition wall 314. Are arranged. In this case, the second discharge electrode 370 is disposed to be closer to the first substrate 310 than the first discharge electrode 360, but the present invention is not limited thereto.

The second discharge electrode 370 includes a second discharge part 371, a second terminal part 373, a second connection part 372, and a second terminal connection part 374. The second discharge part 371 is embedded in the second partition 374 and extends while surrounding the discharge cells 330 disposed in one direction. The second discharge portion 371 extends to be adjacent to a side surface of the first partition portion 314b that protrudes laterally with respect to the second partition wall 324. The second terminal portion 373 is disposed on the second substrate 320 in a direction opposite to the direction in which the first terminal portion 363 is disposed. More specifically, the first terminal portion 363 may include the second terminal portion 363. The second terminal portion 373 is disposed at the end portion in the x direction on the substrate 320, and the second terminal portion 373 is disposed at the end portion in the (−x) direction on the second substrate 320. The second discharge part 371 is structurally and electrically stable by the second connector 372, the second terminal connector 374, the second dummy partition 342, and the second conductive connection member 352. Since the structure connected to 373 is similar to that of the first discharge electrode 360, it is omitted here. In addition, since the material properties of the second conductive connecting member 352 are similar to those of the first conductive connecting member 351, the description thereof will be omitted.

The second terminal portion 373 is electrically connected to the second signal transmission terminal 393 using the second anisotropic conductive film 394, and the details thereof are similar to those of the first discharge electrode 360 described above. It is omitted here.

6, 9, and 10 illustrate the address electrodes 380. The address electrodes 300 extend to cross the direction in which the first discharge electrodes 360 and the second discharge electrodes 370 extend, and the first and second discharge electrodes 360 in the first partition 314. , 370 and the first substrate 310 are spaced apart from each other in a vertical direction (z direction). In this embodiment, in order to lower the address discharge voltage, the second discharge electrodes 370, the address electrodes 380, and the first discharge electrodes 360 are sequentially disposed with respect to the vertical direction of the first substrate 310. have. However, the present invention is not limited thereto, and the address electrodes 380 may be disposed closest to the first substrate 310 or may be disposed farthest, and the address electrodes 380 may be formed on the second substrate 320. May be

The address electrodes 380 are used to generate an address discharge for facilitating sustain discharge between the first discharge electrode 360 and the second discharge electrode 370. More specifically, the address electrodes 380 lower the voltage at which the sustain discharge starts. Play a role. The address discharge is a discharge occurring between the scan electrode and the address electrode. When the address discharge is completed, cations are accumulated on the scan electrode side and electrons are accumulated on the common electrode side, thereby making it easier to sustain discharge between the scan electrode and the common electrode. In the present embodiment, the first discharge electrode 360 acts as a scan electrode and the second discharge electrode 370 acts as a common electrode, but the present invention is not limited thereto.

The address electrode 380 includes a third discharge part 381, a third terminal part 383, a third connection part 382, and a third terminal connection part 384. The third discharge portion 381 extends while surrounding the discharge cells 330 embedded in the third partition 384 and disposed in one direction, respectively. The third discharge portion 381 extends adjacent to the side of the first partition portion 314c protruding laterally with respect to the second partition 324. The third terminal portion 383 is disposed on the second substrate 320 on which the first terminal portion 363 and the second terminal portion 373 are not disposed. The third terminal 381 is structurally and electrically stable by the third connector 382, the third terminal connector 384, the third dummy partition 343, and the third conductive connecting member 353. Since the structure connected to 383 is similar to that of the first discharge electrode 360, it is omitted here. In addition, since the material properties of the third conductive connection member 353 are similar to those of the first conductive connection member 351, the description thereof will be omitted.

The third terminal portion 373 is electrically connected to the third signal transmitting means 395 by using the third anisotropic conductive film 396, and the details thereof are similar to those of the first discharge electrode 360 described above. It is omitted here.

The structure, function and material characteristics of the phosphor layers 325 disposed on the side surfaces of the second partition wall 324 and the second substrate 320 are similar to those of the phosphor layers 325 of the first embodiment described above, and thus are omitted here. do.

In addition, since the structure, function and material properties of the protective layers 315 disposed on the side of the first partition 314 are similar to those of the protective layers 315 of the first embodiment described above, they will be omitted here.

In the plasma display panel 300 according to the second embodiment of the present invention having the above-described configuration, address discharge occurs by applying an address voltage between the address electrode 380 and the first discharge electrode 360. As a result of the discharge, the discharge cells 330 in which sustain discharge is to be generated are selected.

After that, when a sustain voltage is applied between the first discharge electrode 360 and the second discharge electrode 370 of the selected discharge cell 330, the first discharge electrode 360 and the second discharge electrode 370 are applied. Maintenance discharge occurs in the liver. Ultraviolet rays are emitted while the energy level of the discharged gas excited by this sustain discharge is lowered. The ultraviolet rays excite the phosphor layers 325 applied in the discharge cells 330. As the energy levels of the excited phosphor layers 325 decrease, visible light is emitted, and the emitted visible light forms an image. .

The inherent characteristics of the present invention appearing upon the plasma discharge are the same as or similar to those of the first embodiment described above, and thus are omitted here.

In the plasma display panel according to the present invention, since the discharge electrodes are stably supported by the dummy partitions and the conductive connecting members, defects of the discharge electrodes are reduced.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (11)

A first substrate and a second substrate disposed to face each other at predetermined intervals; A first partition wall disposed between the first substrate and the second substrate and partitioning a plurality of discharge cells; A second partition wall disposed between the first partition wall and the second substrate and formed to partition the discharge cells together with the first partition wall, and at least one side surface of the first partition wall protrudes to the outside; A dummy partition wall disposed between the portion protruding to the outside of the first partition wall and the second substrate; And A discharge portion which causes discharge in the discharge cells and is substantially embedded in the first partition wall and extends substantially parallel to the proximal portion of the first partition wall; A terminal portion electrically connected to the first portion extending from the discharge portion in the direction of the second substrate and exposed to one side of the first partition wall facing the second substrate, one end of which is electrically connected to the other portion; Discharge electrodes having a terminal connecting portion connected to the terminal portion through the dummy partition wall; And a conductive connection member disposed between the connection portion and the terminal connection portion to reinforce the electrical connection between the connection portion and the terminal connection portion. The method of claim 1, And the conductive connection member comprises a conductive epoxy. The method of claim 2, And the conductive connecting member comprises silver. The method of claim 1, And the height of the dummy partition wall is substantially the same as the height of the second partition wall. The method of claim 1, And the discharge electrodes extend around the discharge cells arranged in a row. The method of claim 1, And the pair of discharge electrodes extend to cross each other. The method of claim 1, The pair of discharge electrodes extend in parallel to each other, And an address electrode extending to intersect the discharge electrodes. The method of claim 7, wherein And the address electrodes are disposed in the first partition wall. The method of claim 8, And the address electrodes extend around the discharge cells arranged in a row. The method of claim 1, And at least one phosphor layer disposed on at least a side surface of the second partition wall. The method of claim 1, And a protective layer disposed on at least a side of the first partition wall.

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