JP4329461B2 - Plasma display panel - Google Patents

Description

  The present invention relates to a plasma display panel known as a display device.

  In recent years, expectations for large screens and wall-mounted televisions have increased as interactive information terminals, and there are a number of display devices such as liquid crystal display panels, field emission displays, and electroluminescence displays. Among these display devices, the plasma display panel (PDP) is attracting attention as a thin display device with excellent visibility because it is self-luminous and can display beautiful images and can easily be enlarged. Development for finer and larger screens is in progress.

  This PDP is broadly divided into AC type and DC type in terms of driving, and there are two types of discharge types, a surface discharge type and a counter discharge type. From the viewpoint of high definition, large screen, and ease of manufacturing. At present, AC type and surface discharge type PDPs are becoming mainstream.

  FIG. 26 shows an example of the panel structure of the PDP. The PDP is configured by disposing a front plate 101 and a back plate 102 so as to face each other. In FIG. 26, the front plate 101 and the back plate 102 are drawn apart so that the structure can be easily understood.

  The front plate 101 includes a plurality of stripe-shaped display electrodes 106 that are paired with a scan electrode 104 and a sustain electrode 105 on a transparent front substrate 103 such as a glass substrate made of sodium borosilicate glass by a float method. A dielectric layer 107 is formed so as to cover the display electrode 106 group, and a protective film 108 made of MgO is formed on the dielectric layer 107. Scan electrode 104 and sustain electrode 105 are composed of transparent electrodes 104a and 105a and bus electrodes 104b and 105b made of Cr / Cu / Cr, Ag, or the like electrically connected to transparent electrodes 104a and 105a, respectively. ing.

  In addition, the back plate 102 forms an address electrode 110 in a direction orthogonal to the display electrode 106 on the back side substrate 109 disposed opposite to the front side substrate 103 so as to cover the address electrode 110. A dielectric layer 111 is formed, and a plurality of stripe-shaped partition walls 112 are formed in parallel with the address electrodes 110 on the dielectric layer 111 at positions between the address electrodes 110. The phosphor layer 113 is formed on the surface of the layer 111. For color display, the phosphor layer 113 is usually arranged in order of three colors of red, green, and blue.

  The front plate 101 and the back plate 102 are arranged so that the display electrodes 106 and the address electrodes 110 are orthogonal to each other with a partition 112 interposed therebetween so as to form a minute discharge space, and the periphery is sealed. The panel is constituted by sealing with a depositing member and enclosing a discharge gas obtained by mixing Ne (neon), Xe (xenon), etc. into the discharge space at a pressure of about 66500 Pa (500 Torr).

  The discharge space of the PDP is partitioned into a plurality of sections by barrier ribs 112, and a display electrode 106 is provided between the barrier ribs 112 so as to form a plurality of discharge cells serving as unit light emitting regions. The electrode 110 is disposed orthogonally.

  In this PDP, a discharge is generated by a periodic voltage applied to the address electrode 110 and the display electrode 106, and the phosphor layer 113 is irradiated with ultraviolet rays by the discharge to convert it into visible light, thereby performing image display. Yes.

As shown in the plan view of the schematic configuration of the image display unit in FIG. 27, the scan electrode 104 and the sustain electrode 105 constituting the display electrode 106 extend in the column direction across the discharge gap 114 in each line of the matrix display. Arranged. Here, a region where the display electrode 106 and the address electrode 110 intersect with each other by the partition 112 is a discharge cell 115 which is a unit light emitting region. Further, a black stripe (not shown) may be formed in the non-light emitting region 116 for the purpose of improving contrast (see, for example, Non-Patent Document 1).
Co-authored by Hioki Uchiike and Shigeo Miko, “All about Plasma Displays”, Industrial Research Committee, Inc., May 1, 1997, p79-p80

  For the development of this PDP, further higher brightness, higher efficiency, lower power consumption, and lower cost are indispensable. In order to achieve high brightness, for example, in the configuration shown in FIG. 27, a non-light emitting region 116 between adjacent discharge cells 115 is narrowed, and an electrode interval on the discharge gap 114 side is widened, thereby causing a discharge region. However, in this case, there may be a problem that erroneous discharge between adjacent discharge cells 115 also increases.

  Here, it is conceivable to suppress the erroneous discharge by forming the barrier ribs 112 in a lattice shape, but in this case, when the PDP is manufactured, the impurity gas is discharged from the PDP inner space and discharged into the PDP inner space. There may be a problem that it becomes difficult to properly seal the discharge gas.

  The present invention has been made in view of the above problems, and by suppressing erroneous discharge and enabling good discharge of impure gas in the PDP inner space and sealing of the discharge gas into the PDP inner space. An object of the present invention is to realize a plasma display panel capable of improving luminance and image quality.

In order to achieve this object, the plasma display panel of the present invention has a front plate and a back plate that are arranged to face each other, and the front plate includes a display electrode that includes scan electrodes and sustain electrodes that extend in the row direction, The back plate extends in the column direction and is perpendicular to the display electrodes, and the plurality of discharge cells formed at the intersections of the display electrodes and the address electrodes are individually divided in the row direction and the column direction. In a plasma display panel comprising grid-like partition walls of equal
The row-direction barrier rib is a combination of two protrusions protruding from the column-direction barrier rib so that they form a space in which discharge cells adjacent in the column direction do not communicate linearly. The barrier rib communicates the discharge cells adjacent in the column direction in a non-linear manner with the space as a communicating portion, the opening height of the communicating portion is lower than the height of the barrier rib, and the protruding portion is at least a part thereof ratio during the non-emitting area part in Rukoto provided by overlapping the display electrodes is constructed to be smaller, it is characterized in.

  The plasma display panel of the present invention can suppress erroneous discharge, and can improve the brightness and image quality by enabling the exhaust of impure gas in the PDP internal space and the discharge gas to be enclosed in the PDP internal space. It is possible to realize a plasma display panel that can

The invention according to claim 1 has a front plate and a back plate arranged to face each other, the front plate includes a display electrode composed of a scan electrode and a sustain electrode extended in a row direction, and the back plate has a column direction. A grid-like shape in which the height is the same in the row direction and the column direction, which individually partitions a plurality of discharge cells that are formed at portions where the display electrodes and the address electrodes intersect with each other. In the plasma display panel including the barrier ribs, the barrier ribs in the row direction have two protrusions protruding from the barrier ribs in the column direction so that they form a space in which discharge cells adjacent in the column direction do not communicate linearly. The row-direction barrier ribs have the above-described space as a communication portion, and discharge cells adjacent in the column direction communicate in a non-linear manner, the opening height of the communication portion is lower than the height of the barrier ribs, and The protrusion is at least Ratio during the non-emitting area part in Rukoto provided partially overlapped on the display electrodes is constructed to be smaller, it is a plasma display panel according to claim.

  Hereinafter, a plasma display panel according to an embodiment of the present invention will be described.

(Embodiment 1)
FIG. 1 is a cross-sectional perspective view showing a schematic configuration of a plasma display panel according to an embodiment of the present invention.

  As shown in FIG. 1, the PDP according to the present embodiment includes a front plate 1 and a back plate 2. In FIG. 1, the front plate 1 and the back plate 2 are drawn apart so that the structure can be easily understood.

  The front plate 1 has a scanning electrode 4 and a sustain electrode 5 extending in a row direction (x direction in the figure) on a transparent front side substrate 3 such as a glass substrate made of sodium borosilicate glass or the like by a float method. A plurality of stripe-like display electrodes 6 are formed in pairs, and a dielectric layer 7 is formed so as to cover the group of display electrodes 6. A protective film 8 made of MgO is formed on the dielectric layer 7. It is comprised by forming. Scan electrode 4 and sustain electrode 5 are each composed of transparent electrodes 4a and 5a and bus electrodes 4b and 5b made of Cr / Cu / Cr or Ag or the like electrically connected to transparent electrodes 4a and 5a. Has been.

  The back plate 2 has an address electrode 10 formed on the back substrate 9 facing the substrate 3 so as to extend in the column direction (y direction in the figure) and to be orthogonal to the display electrode 6. A dielectric layer 11 is formed so as to cover the address electrode 10, and a partition wall 12 is formed on the dielectric layer 11, and the shape of the partition wall 12 includes a partition wall 12a in the row direction and a partition wall 12b in the column direction. And the grid is of equal height. In addition, a communication portion 12c is formed in the partition wall 12a in the row direction of the partition wall 12, and the communication portion 12c communicates in a non-linear manner, for example, by having a bent portion.

  A phosphor layer (not shown) is formed on the side surfaces between the partition walls 12 and the surface of the dielectric layer 11. For color display, phosphor layers are usually arranged in order of three colors of red, green, and blue.

  Then, the front plate 1 and the back plate 2 are disposed so as to face each other with the partition wall 12 interposed therebetween so that the display electrode 6 and the address electrode 10 are orthogonal to each other and form a minute discharge space therein, and the periphery is sealed. A discharge gas formed by mixing xenon (Xe) and at least one of neon (Ne) and helium (He) is sealed in the discharge space at a pressure of about 66500 Pa (500 Torr). The PDP is configured by encapsulating. Here, the partial pressure of Xe is preferably 5% to 50% from the viewpoint of efficiency.

  The discharge space of the PDP is partitioned into a plurality of sections by the partition walls 12, and the display electrodes 6 and the address electrodes 10 are arranged so that the partitioned discharge spaces become discharge cells 15 that are unit light emitting areas. They are arranged orthogonally.

  In this PDP, a discharge is generated by a periodic voltage applied to the address electrodes 10 and the display electrodes 6, and image display is performed by irradiating the phosphor layer with ultraviolet rays resulting from the discharge and converting it into visible light.

  FIG. 2 is a plan view showing a schematic configuration of an image display unit of a PDP according to an embodiment of the present invention. Moreover, the AA arrow sectional drawing, BB arrow sectional drawing, CC arrow sectional drawing, and DD arrow sectional drawing in FIG. 2 are respectively FIG. 3, FIG. 4, FIG. As shown in FIG. In these drawings, the phosphor layer 13 is shown.

  As shown in FIGS. 2 to 6, the scan electrodes 4 and the sustain electrodes 5 are alternately arranged in the column direction so as to be adjacent to each other with the discharge gap 14 in each line of the matrix display. Here, a region surrounded by the partition walls 12a in the row direction and the partition walls 12b in the column direction is the discharge cell 15 which is a unit light emitting region. Further, a black stripe (not shown) may be formed in the non-light emitting region 16 for the purpose of improving the contrast.

  In the PDP according to the embodiment of the present invention described above, the partition walls 12 have a lattice shape in which the heights of the partition walls 12a in the row direction and the partition walls 12b in the column direction are equal, and the display electrodes 6 and the address electrodes 10 intersect. A plurality of discharge cells 15 formed in the portion to be divided are individually divided. And the communication part 12c provided in the partition 12 has the bending part 12d, for example, and communicates the adjacent discharge cell 15 non-linearly. In addition, although the figure showed the case where the communication part 12c was provided in the partition 12a of the row direction, you may provide in the partition 12b of the column direction.

  Here, “non-linearly communicating” means that the communicating portion 12 c does not communicate with the adjacent discharge cells 15 linearly. For example, FIG. As shown in FIG. 7, even if the communicating portion 12c has a bent portion 12d, the one having the linearly communicating region 12e as shown in FIG. 7A does not fall within the scope of the present invention. As shown in FIG. 7B, the communication portion 12c in the state where there is no linearly communicating region is the communication portion 12c in the present invention.

  By providing the partition wall 12 as described above, the PDP of the present embodiment suppresses the problem of erroneous discharge between the adjacent discharge cells 15, and also exhausts impure gas into the PDP and fills the discharge gas. It can be done well.

  That is, in the present embodiment, the barrier ribs 12 have a lattice shape having the same height in the row direction and the column direction, and are arranged so as to surround the discharge cells 15. Since the barrier ribs 12a have communication portions 12c, even when the barrier ribs 12 have a lattice shape surrounding the periphery of the discharge cells 15, it is necessary to exhaust the impure gas to the individual discharge cells 15 and to enclose the discharge gas in manufacturing the PDP. It can be done well.

  In addition, it is considered that the reason why the erroneous discharge occurs is that the charged particles reach the adjacent discharge cell 15 and have an influence, but the movement of the charged particles is generally considered to be linear, Therefore, even if the communication part 12c exists in the partition wall 12a, the communication part 12c communicates the adjacent discharge cells 15 in a non-linear manner, so that charged particles pass through the communication part 12c and are adjacent to each other. The probability of reaching 15 is small, and therefore the problem of erroneous discharge can be suppressed.

  In the above description, the example in which the communication portions 12c are provided one by one on the partition walls 12a in the row direction is shown, but a plurality of communication portions 12c may be provided.

  In the above description, the communication portion 12c is provided in the row-direction partition 12a. However, the communication portion 12c may be provided in the column-direction partition 12b or both.

  In the above description, the opening height of the communication portion 12c, that is, the depth of the groove serving as the communication portion 12c and the height of the partition wall 12 are the same in the present embodiment. The present invention is not limited to such a configuration, and the opening height of the communication portion 12c may be configured to be lower than the height of the partition wall 12, as shown in a cross-sectional perspective view in FIG. If the opening height of the communication part 12c and the height of the partition wall 12 are the same, the communication part 12c can be formed simultaneously with the formation of the partition wall 12, thereby preventing an increase in processes. Further, if the opening height of the communication portion 12c is made lower than the height of the partition wall 12, the stability of the shape of the formed partition wall 12 can be improved.

  Further, as the communication portion 12c communicating non-linearly, in addition to the above-described form, for example, as shown in FIG. 9, the whole communication portion 12c is bent in an arc shape, or shown in FIG. 10 and FIG. As described above, the barrier ribs 12a in the row direction and / or the barrier ribs 12b in the column direction are composed of a plurality of, for example, two, and a space is formed so that the adjacent discharge cells 15 do not communicate linearly. For example, a structure in which the partition walls 12 are overlapped so that the space serves as the communication portion 12c can be used. Although not shown, a structure combining FIG. 10 and FIG. 11 may be used.

  In the above description, the communication portion 12c has been shown to communicate in a non-linear manner by bending in the xy direction in the figure, but is not particularly limited to such a configuration. The communication may be non-linear by bending in the direction.

  Moreover, the opening shape of the communication part 12c may be any shape.

(Embodiment 2)
FIG. 12 is a cross-sectional perspective view showing a schematic configuration of a plasma display panel according to an embodiment of the present invention.

  As shown in FIG. 12, the PDP of this embodiment includes a front plate 21 and a back plate 22. In FIG. 12, the front plate 21 and the back plate 22 are drawn apart so that the structure can be easily understood.

  The front plate 21 has a scanning electrode 24 and a sustain electrode 25 extending in a row direction (x direction in the figure) on a transparent front substrate 23 such as a glass substrate made of sodium borosilicate glass by a float method. A plurality of stripe-shaped display electrodes 26 paired with each other are formed, and a dielectric layer 27 is formed so as to cover the group of display electrodes 26, and a protective film 28 made of MgO is formed on the dielectric layer 27. It is comprised by forming. The scan electrode 24 and the sustain electrode 25 are composed of transparent electrodes 24a and 25a, and bus electrodes 24b and 25b made of Cr / Cu / Cr, Ag, or the like electrically connected to the transparent electrodes 24a and 25a, respectively. Has been. The dielectric layer 27 has protrusions 27a and 27b having the same height in the row direction and the column direction, and has a lattice shape. The row-direction protruding portion 27a is formed with a communicating portion 27c having an opening height equivalent to the height of the protruding portion 27a. The communicating portion 27c is, for example, non-linear by having a bent portion. It communicates with.

  Further, the back plate 22 extends in the column direction (the y direction in the drawing) on the back side substrate 29 disposed opposite to the substrate 23 to form the address electrodes 30 in a direction perpendicular to the display electrodes 26. The dielectric layer 31 is formed so as to cover the address electrode 30, and the partition wall 32 is formed on the dielectric layer 31, and the shape of the partition wall 32 is a lattice having the same height in the row direction and the column direction. Is.

  A phosphor layer (not shown) is formed on the side surfaces between the partition walls 32 and the surface of the dielectric layer 31. For color display, phosphor layers are usually arranged in order of three colors of red, green, and blue.

  Then, the front plate 21 and the back plate 22 are arranged opposite to each other with the partition wall 32 interposed therebetween so that the display electrode 26 and the address electrode 30 are orthogonal to each other and form a minute discharge space inside, and the periphery is sealed. A discharge gas formed by mixing xenon (Xe) and at least one of neon (Ne) and helium (He) is sealed in the discharge space at a pressure of about 66500 Pa (500 Torr). The PDP is configured by encapsulating. Here, the partial pressure of Xe is preferably 5% to 50% from the viewpoint of efficiency.

  The discharge space of the PDP is partitioned into a plurality of partitions by the lattice-shaped partition walls 32 and the lattice-shaped protrusions 27a and 27b of the dielectric layer 27 facing each other. The display electrode 26 and the address electrode 30 are arranged orthogonally so that becomes a discharge cell 35 which is a unit light emitting region.

  In this PDP, a discharge is generated by a periodic voltage applied to the address electrode 30 and the display electrode 26, and image display is performed by irradiating the phosphor layer with ultraviolet light generated by this discharge to convert it into visible light.

  FIG. 13 is a plan view showing a schematic configuration of an image display unit of a PDP according to an embodiment of the present invention.

  Moreover, the AA arrow sectional drawing, BB arrow sectional drawing, CC arrow sectional drawing, and DD arrow sectional drawing in FIG. 13 are respectively FIG. 14, FIG. 15, FIG. As shown in FIG. In these drawings, the phosphor layer 33 is shown.

  As shown in FIGS. 13 to 17, the scan electrodes 24 and the sustain electrodes 25 are alternately arranged in the column direction so as to be adjacent to each other in the matrix display with the discharge gap 34 interposed therebetween. Here, a region surrounded by the barrier ribs 32 and the protruding portions 27a in the row direction and the protruding portions 27b in the column direction is a discharge cell 35 which is a unit light emitting region. Further, a black stripe (not shown) may be formed in the non-light emitting region 36 for the purpose of improving contrast.

  In the PDP according to the embodiment of the present invention described above, the partition wall 32 and the protrusions 27a and 27b of the dielectric layer 27 are in a lattice shape having the same height in the row direction and the column direction, and face each other. A plurality of discharge cells 35 formed at the intersection of the display electrode 26 and the address electrode 30 are individually partitioned. And the communication part 27c provided in the protrusion part 27a of the dielectric material layer 27 has the bending part 27d, for example, and communicates the adjacent discharge cell 35 non-linearly. In addition, although the case where the communication part 27c was provided in the protrusion part 27a of row direction was shown in the figure, you may provide in the protrusion part 27b of column direction.

  Here, “non-linearly communicating” means that the communicating portion 27c does not communicate with the adjacent discharge cells 35 linearly. For example, the dielectric layer 27 and its protruding portion 27a are shown in FIG. , 27b schematically shown in a sectional plan view, even if the communication portion 27c has a bent portion 27d, there is a region 27e that communicates linearly as shown in FIG. Does not fall within the scope of the present invention. As shown in FIG. 18B, the communication portion 27c in a state where there is no linear communication region is the communication portion 27c in the present invention.

  By providing the partition wall 32 and the protrusions 27a and 27b of the dielectric layer 27 as described above, the PDP according to the present embodiment suppresses the problem of erroneous discharge between the adjacent discharge cells 35, and the inside of the PDP. The impure gas can be exhausted and the discharge gas can be sealed well.

  In other words, in the present embodiment, the barrier rib 32 and the protrusions 27a and 27b of the dielectric layer 27 are opposed to each other in a lattice shape having the same height in the row direction and the column direction. However, the partition wall 32 and the projecting portions 27a and 27b are arranged in a grid pattern surrounding the discharge cell 35 since the communicating portion 27c exists in the row-direction projecting portion 27a. Even when the PDP is manufactured, the impure gas can be exhausted and the discharge gas can be satisfactorily sealed into the individual discharge cells 35.

  In addition, it is considered that the reason why the erroneous discharge occurs is that the charged particles reach and influence the adjacent discharge cell 35, and the movement of the charged particles is generally considered to be linear. Therefore, even if the communication part 27c exists in the protrusion part 27a, since the communication part 27c communicates the adjacent discharge cell 35 non-linearly, the charged particles pass through the communication part 27c and are adjacent to each other. The probability of reaching the cell 35 is small, and therefore the problem of erroneous discharge can be suppressed.

  In the above description, the communication portions 27c are provided one by one in the row-direction protruding portions 27a. However, a plurality of communication portions 27c may be provided.

  In the above description, the communication portion 27c is provided in the row-direction protruding portion 27a. However, the communication portion 27c may be provided in the column-direction protruding portion 27b, or may be provided in both.

  FIGS. 19 to 22 are perspective views showing an example of the shape of the recess 27f formed in the dielectric layer 27 by being surrounded by the protrusions 27a and 27b. In addition to the quadrangle shown in FIG. 19, the shape of the concave part 27f formed by being surrounded by the projecting parts 27a and 27b is chamfered with a circle, an ellipse, a polygon, and four corners as shown in FIGS. Then, a rounded chamfered rectangle or the like may be used. Here, when the shape of the concave portion 27f is a shape having no sharp corners as shown in FIGS. 20 to 22, the stress concentration acting on the corner of the concave portion 27f can be reduced, and the protruding portion 27a. 27b is preferable because it can be stably formed. FIGS. 19 to 22 show the shape of the recess 27f in one discharge cell 35. The entire front plate 21 has the recess 27f in a matrix shape, so that the protrusions 27a and 27b cause dielectrics. The body layer 27 has a shape having lattice-like protrusions 27a and 27b.

  In the above description, the opening height of the communication portion 27c, that is, the depth of the groove that is the communication portion 27c and the height of the protruding portion 27a are shown in the present embodiment. It is not restricted to such a structure, As shown in FIG. 23, you may comprise so that the opening height of the communication part 27c may become lower than the height of the protrusion part 27a. If the opening height of the communication part 27c and the height of the protrusion part 27a are the same, the communication part 27c can be formed simultaneously with the formation of the protrusion part 27a, and an increase in the number of steps can be prevented. Further, when the opening height of the communication portion 27c is made lower than the height of the protruding portion 27a, the stability of the shape of the formed protruding portions 27a and 27b can be improved.

  Further, as the communication portion 27c communicating non-linearly, in addition to the above-described form, for example, as shown in FIG. 24, the entire communication portion 27c is bent in an arc shape, or as shown in FIG. A plurality of projecting portions 27a, for example, two in a combined state, a space is formed so that they do not communicate linearly with adjacent discharge cells 35, and this space is defined as a communicating portion 27c. For example, a structure in which the protruding portions 27a are provided so as to overlap each other can be given. In the case of the configuration shown in FIG. 25, problems at the time of exhaust and discharge gas filling, and problems of erroneous discharge can be suppressed, and between adjacent electrodes (for example, one discharge cell 35 of adjacent discharge cells 35). It becomes possible to reduce the reactive power generated in the scan electrode 24 and the sustain electrode 25) of the other discharge cell 35. That is, the reactive power is greatly affected by the capacitance, so that the portion of the non-light emitting region 36 between the adjacent electrodes is made a gas portion having a smaller capacitance rather than being filled with the protruding portion 27a of the dielectric layer 27. Reactive power can be reduced.

  In the above description, the communication portion 27c has been shown to communicate in a non-linear manner by bending in the xy direction in the figure, but is not particularly limited to such a configuration. The communication may be non-linear by bending in the direction.

  Further, the opening shape of the communication portion 27c may be any shape.

  Further, the protrusions 27 a and 27 b formed on the dielectric layer 27 may be black like a black stripe when formed in the non-light emitting region 36 of each discharge cell 35. In this case, since the protrusions 27a and 27b can be used as the black stripe, the number of processes does not increase.

  Here, the total film thickness of the dielectric layer 27 at the protrusion 27a is preferably 5 to 60 μm as the sum of the film thickness of the underlying portion and the film thickness of the protrusion 27a itself. For example, when the film thickness of the base portion of the dielectric layer 27 on the discharge gap 34 is 30 μm and the film thickness of the protrusion 27 a itself is 20 μm, the total thickness of the dielectric layer 27 is 50 μm.

  As described above, the present invention can realize a plasma display panel that can improve luminance and image quality by suppressing erroneous discharge, exhausting impure gas, and sealing discharge gas.

1 is a cross-sectional perspective view showing a schematic configuration of a plasma display panel according to an embodiment of the present invention. The top view which shows schematic structure of the image display part of the plasma display panel by one embodiment of this invention AA arrow sectional view in FIG. BB arrow sectional view in FIG. CC cross-sectional view in FIG. DD sectional view in FIG. Cross-sectional plan view of the partition wall for explaining the communication part 1 is a cross-sectional perspective view showing a schematic configuration of a plasma display panel according to an embodiment of the present invention. The top view of the partition for showing an example of the communication part of the plasma display panel by one embodiment of this invention The top view of the partition for showing an example of the communication part of the plasma display panel by one embodiment of this invention The top view of the partition for showing an example of the communication part of the plasma display panel by one embodiment of this invention 1 is a cross-sectional perspective view showing a schematic configuration of a plasma display panel according to an embodiment of the present invention. The top view which shows schematic structure of the image display part of the plasma display panel by one embodiment of this invention AA arrow sectional view in FIG. BB arrow sectional view in FIG. CC sectional view in FIG. DD sectional view in FIG. Cross-sectional plan view of the dielectric layer for explaining the communication portion The perspective view which shows schematic structure of the discharge cell part for demonstrating the communication part of the plasma display panel by one embodiment of this invention The perspective view which shows schematic structure of the discharge cell part for demonstrating the communication part of the plasma display panel by one embodiment of this invention The perspective view which shows schematic structure of the discharge cell part for demonstrating the communication part of the plasma display panel by one embodiment of this invention The perspective view which shows schematic structure of the discharge cell part for demonstrating the communication part of the plasma display panel by one embodiment of this invention The perspective view which shows schematic structure of the discharge cell part for demonstrating the communication part of the plasma display panel by one embodiment of this invention The top view which shows schematic structure of the image display part for showing an example of the communication part of the plasma display panel by one embodiment of this invention The top view which shows schematic structure of the image display part for showing an example of the communication part of the plasma display panel by one embodiment of this invention Sectional perspective view showing a schematic configuration of a conventional plasma display panel The top view which shows schematic structure of the image display part of the conventional plasma display panel

Explanation of symbols

1, 21 Front plate 2, 22 Back plate 4, 24 Scan electrode 5, 25 Sustain electrode 6, 26 Display electrode 7, 27 Dielectric layer 10, 30 Address electrode 12, 32 Partition 12a Row partition 12b Column partition 12c, 27c Communication portion 15, 35 Discharge cell 27a Protrusion portion in the row direction of the dielectric layer 27b Protrusion portion in the column direction of the dielectric layer

Claims (1)

The front plate has a front plate and a back plate arranged opposite to each other, and the front plate has display electrodes made up of scan electrodes and sustain electrodes extended in the row direction, and the back plate extends in the column direction and is orthogonal to the display electrodes. In a plasma display panel comprising electrodes, and a plurality of discharge cells formed at portions where display electrodes and address electrodes intersect with each other, and grid-like partition walls having the same height in the row direction and the column direction,
The row-direction barrier ribs are a combination of two protrusions protruding from the column-direction barrier ribs so that they form a space that does not communicate linearly with discharge cells adjacent in the column direction,
The partition walls in the row direction communicate with the discharge cells adjacent in the column direction in a non-linear manner, with the space as a communication portion.
The opening height of the communication part is lower than the height of the partition wall,
And, the projecting portion is constituted as a percentage in the non-light-emitting area part in Rukoto provided by overlapping the display electrode at least partially reduced,
A plasma display panel characterized by that.

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