JP2006253059A - Plasma display panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent rising of sustaining discharge voltage in a PDP in which both of paired column electrodes and row electrodes are arranged on a substrate at one side. <P>SOLUTION: A plurality of row electrodes D1 extending in row direction are installed on the inner face side of a front glass substrate 1 which is opposed to a rear substrate 4 through a discharge space, and are covered by a first dielectric layer 2. And a plurality of column electrode pairs (X1, Y1) extending in column direction are installed on the inner face side of this first dielectric layer 2 and are covered by a second dielectric layer 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a panel structure of a plasma display panel.

  Generally, a three-electrode plasma display panel (hereinafter referred to as PDP) is arranged such that a front glass substrate and a rear glass substrate are opposed to each other through a discharge space in which a discharge gas is sealed. In addition, a plurality of row electrode pairs that are arranged in parallel to each other so that the paired row electrodes extend in the row direction and each form a display line, and a dielectric layer that covers the row electrode pairs are provided, and a rear glass A plurality of column electrodes extending in the column direction are provided on the inner surface side of the substrate, and discharge cells are respectively formed in the discharge spaces where the column electrodes intersect with the row electrode pairs. In addition, a phosphor layer colored in red, green, and blue is formed.

  In this three-electrode type PDP, first, an address discharge is selectively generated between one row electrode and a column electrode of a row electrode pair, and a wall charge is formed in a dielectric layer covering the row electrode pair. Or, the formed wall charges are erased, so that the wall charges are not formed with the discharge cells (light emitting cells) in which the wall charges are formed in the dielectric layer corresponding to the input video signal. Discharge cells (non-light emitting cells) are distributed on the panel surface.

  After that, a sustain discharge is generated between the row electrodes of each row electrode pair in each light emitting cell, and the red light emitted from the xenon gas in the discharge gas by the sustain discharge is changed to red, green, and blue, respectively. When the color-coded phosphor layers are excited to emit light, an image is formed by matrix display.

  Here, the three-electrode type PDP in which electrodes are formed on the front glass substrate and the rear glass substrate as described above has a complicated manufacturing process and high accuracy in the positional relationship between the front glass substrate and the rear glass substrate. Therefore, there is a problem that the manufacturing cost is high, and that many components are formed on each substrate is a factor that increases the manufacturing cost.

  For this reason, in recent years, a PDP having a configuration in which both row electrode pairs and column electrodes are formed on one glass substrate side has been proposed in order to reduce the cost and increase the definition of the displayed image.

  In this type of three-electrode type PDP, a row electrode pair and a column electrode extending in a direction orthogonal to the row electrode pair are provided on a glass substrate on the side facing the glass substrate on which the phosphor layer is formed. It is formed so as to have a two-layer structure with a gap in between.

  FIG. 1 is a front view showing a conventional plasma display panel in which both such row electrode pairs and column electrodes are formed on one substrate side.

  In FIG. 1, a plasma display panel has a plurality of row electrode pairs (X, Y) each composed of a pair of row electrodes X and Y extending in the row direction on the inner surface side of a front glass substrate (not shown). The row electrode pairs are covered with a first dielectric layer (not shown), and the main body of the plurality of column electrodes D is provided on the inner surface side of the first dielectric layer. The portions Da extend in the column direction and are arranged at equal intervals in the row direction, and the main body portion Da of the column electrode D is covered with a second dielectric layer (not shown).

  Each discharge portion Db of the column electrode D is configured to face the row electrode X or Y of the row electrode pair that performs address discharge with the discharge portion Db (see, for example, Patent Document 1). .

  In the PDP having such a configuration, both the row electrode pair (X, Y) and the column electrode D are formed on one substrate side (in the above example, the front glass substrate side), thereby reducing the manufacturing cost. However, the following new problem occurs.

  That is, in this conventional PDP, the row electrode pair (X, Y) is composed of two layers, a first dielectric layer covering the row electrode pair and a second dielectric layer covering the column electrode D. The dielectric layer covering the row electrode pair (X, Y) increases in thickness because of being opposed to the discharge space via the dielectric layer, and thus the sustain discharge voltage increases. Will occur.

JP-A-10-32145

  One of the technical problems of the present invention is to solve the problems that occur in the conventional PDP in which both the row electrode pair and the column electrode are arranged on one substrate side as described above.

  In order to achieve the above object, a PDP according to the present invention has a pair of substrates facing each other through a discharge space, and is disposed on one of the pair of substrates and extends in the row direction and in the column direction. A plurality of row electrode pairs arranged side by side and a plurality of column electrodes extending in the column direction and arranged side by side in the row direction; and a dielectric layer covering each of the row electrode pairs and the column electrodes. In the plasma display panel in which a plurality of unit light emitting regions that are respectively discharged by the row electrode pairs and the column electrodes are formed in a matrix, the row electrode pairs and the column electrodes are arranged in the dielectric layer in the thickness direction of the substrate. It is characterized in that it is disposed at a position separated from each other, and the row electrode pair is positioned on the discharge space side with respect to the column electrode.

  In the PDP according to the present invention, a plurality of column electrodes extending in the column direction are arranged in parallel in the row direction on the inner surface side of the front glass substrate facing the rear glass substrate through the discharge space, and are covered with the first dielectric layer. A PDP in which a plurality of row electrode pairs extending in the row direction on the inner surface side of the first dielectric layer are arranged in the column direction and covered with the second dielectric layer is the best embodiment.

  In the PDP according to this embodiment, two dielectric layers of a dielectric layer covering the row electrode pair and a dielectric layer covering the column electrode are interposed between the conventional row electrode pair and the discharge space. Compared to the PDP that has been used, a second dielectric material in which a dielectric layer interposed between a row electrode constituting a row electrode pair for performing a sustain discharge and a discharge space in which a discharge is generated covers the row electrode pair Since there is only one layer, there is no increase in the thickness of the dielectric layer interposed between the row electrode pair and the discharge space when the row electrode pair and the column electrode are arranged on the front glass substrate side. Thus, when sustain discharge is generated between the row electrodes of the pair of row electrodes during driving of the PDP, there is no possibility that the sustain discharge voltage increases.

  2 to 4 show a first example of the embodiment of the PDP according to the present invention, FIG. 2 is a front view schematically showing the PDP in the first example, and FIG. 3 is a view of V1-V1 in FIG. FIG. 4 is a perspective view of the substrate on which the electrodes of the same example are arranged as seen from the back side.

  2 to 4, on the inner surface of the front glass substrate 1 constituting the display surface, a plurality of strip-like column electrode body portions D1a constituting the column electrode D1 extend in the column direction and are required in the row direction. They are arranged side by side at intervals.

  Further, on the inner surface of the front glass substrate 1, for each column electrode main body D1a, a plurality of strip-shaped column electrode discharge portions D1b constituting the column electrode D1 are arranged at equal intervals along the column electrode main body D1a. At the same time, the column electrode body D1a is formed integrally with the column electrode body D1a so as to extend from the side of the column electrode body D1a in one direction along the row direction (rightward in the illustrated example).

Each column electrode discharge part D1b is each located in the predetermined position mentioned later.
And the 1st dielectric material layer 2 is formed in the back surface of the front glass substrate 1, The column electrode main-body part D1a and the column electrode discharge part D1b of the column electrode D1 are coat | covered by this 1st dielectric material layer 2.

  On the inner surface of the first dielectric layer 2, a plurality of row electrode pairs (X1, Y1) each constituting one display line L1 extend in the row direction of the front glass substrate 1 (left and right direction in FIG. 2). In addition, they are juxtaposed so as to be arranged at equal intervals in the column direction.

  The row electrodes X1 constituting the row electrode pair (X1, Y1) are arranged at regular intervals along the bus electrode X1a with a strip-like bus electrode X1a made of a black or dark metal film extending in the row direction of the front glass substrate 1. And a substantially T-shaped transparent electrode X1b made of ITO or the like that is connected to the bus electrode X1a and protrudes in the direction of the row electrode Y1 paired with the bus electrode X1a.

  Similarly, the row electrodes Y1 are arranged at equal intervals along the bus electrodes Y1a, and the strip-like bus electrodes Y1a made of a black or dark metal film extending in the row direction of the front glass substrate 1 are arranged on the bus electrodes Y1a. A substantially T-shaped transparent electrode Y1b made of ITO or the like is connected and protrudes in the direction of the row electrode X1 paired with the bus electrode Y1a.

  The row electrodes X1 and Y1 are alternately arranged in the column direction (vertical direction in FIG. 2) of the front glass substrate 1, and each of the transparent electrodes X1b and Y1b arranged in parallel along the bus electrodes X1a and Y1a. The top sides of the wide end portions are opposed to each other via a discharge gap g1 having a predetermined interval.

  The row electrode pair (X1, Y1) and the column electrode D1 are arranged so as to have the following positional relationship.

  That is, the column electrode main body D1a of each column electrode D1 is located at a position facing each intermediate position of the transparent electrodes X1b and Y1b arranged at equal intervals in the row direction along the bus electrodes X1a and Y1a of the row electrodes X1 and Y1. Each of the column electrode discharge portions D1b is arranged so as to be located at a position opposite to an intermediate position of the discharge gap g1 between the transparent electrodes X1b and Y1b.

  A second dielectric layer 3 is formed on the back surface of the first dielectric layer 2, and the row electrode pair (X1, Y1) is covered with the second dielectric layer 3.

  On the back side of the second dielectric layer 3, a second dielectric layer is formed on the portion facing the bus electrodes X1a and Y1a located back to back of the adjacent row electrode pair (X1, Y1) and the region between them. 3 is formed so as to extend in a strip shape in the row direction along the bus electrodes X1a and Y1a.

  A protective layer (not shown) made of MgO is formed on the back side of the second dielectric layer 3 and the raised dielectric layer 3A.

  On the other hand, a reflective layer 5 made of a white dielectric material is formed on the display-side surface of the rear glass substrate 4 facing the front glass substrate 1 through the discharge space.

  Furthermore, on this reflective layer 5, it opposes the part between each of the transparent electrodes X1b and Y1b arranged at equal intervals in the row direction along the bus electrodes X1a and Y1a of the row electrodes X1 and Y1 on the front glass substrate 1 side. A vertical wall 6A extending in the column direction at the position, and a horizontal wall 6B extending in the row direction at positions facing the bus electrodes X1a and Y1a located in back-to-back positions of the adjacent row electrode pairs (X1, Y1) and the region portion therebetween. A substantially lattice-shaped partition wall 6 is formed.

  A transparent electrode X1b in which a discharge space formed between the front glass substrate 1 and the rear glass substrate 4 is opposed to each other via the discharge gap g1 in each row electrode pair (X1, Y1) by the partition wall 6. A rectangular discharge cell C1 is formed for each of the portions facing Y1b and Y1b.

The column electrode body D1a of the column electrode D1 is opposed to the vertical wall 6A of the partition wall 6.
A phosphor layer 7 is formed on the side surfaces of the vertical wall 6A and the horizontal wall 6B of the partition wall 6 facing the discharge cell C1 and the surface of the reflective layer 5 so as to cover all five surfaces. The color of the body layer 7 is divided into three primary colors of red, green, and blue for each discharge cell C1, and the three primary colors are arranged in order in the row direction.

  In the discharge space between the front glass substrate 1 and the back glass substrate 4, a discharge gas containing xenon gas is sealed.

Image formation in this PDP is performed as follows.
That is, in the address period after the simultaneous reset period, a scan pulse is applied to the row electrode Y1, and a data pulse corresponding to the display data of the video signal is applied to the column electrode body D1a of the column electrode D1, An address discharge is selectively generated between the column electrode discharge portion D1b of the column electrode D1 and the transparent electrode Y1b of the row electrode Y1 to which the scan pulse is applied, whereby the first dielectric layer 2 is formed on the panel surface. Discharge cells (light emitting cells) C1 in which wall charges are formed in the second dielectric layer 3 and discharge cells (non-light emitting cells) C1 in which wall charges are not formed are distributed.

  Thereafter, in the next sustain period, a sustain pulse is alternately applied to the row electrodes X1 and Y1, and the wall charges are formed in the first dielectric layer 2 and the second dielectric layer 3 in the light emitting cell C1. A sustain discharge is generated between the transparent electrodes X1b and Y1b facing each other via the discharge gap g1 between the row electrodes X1 and Y1, and vacuum ultraviolet rays are generated from the xenon gas in the discharge gas sealed in the discharge space. Is emitted.

  As a result, the phosphor layer 7 colored in red, green, and blue in the light emitting cell C1 is excited by vacuum ultraviolet rays to emit light, thereby forming an image by matrix display.

  The PDP having the above-described structure is a PDP in which a dielectric layer covering a row electrode pair and a dielectric layer covering a column electrode is interposed between a conventional row electrode pair and a discharge cell. In comparison, the dielectric layer interposed between the transparent electrodes X1b and Y1b of the row electrodes X1 and Y1 that perform the sustain discharge and the space (discharge space) in the discharge cell C1 in which the discharge is generated is the second dielectric. Since there is only one layer 3, between the transparent electrodes X1b, Y1b and the space in the discharge cell C1 when the row electrode pair (X1, Y1) and the column electrode D1 are arranged on the front glass substrate 1 side. There is no increase in the thickness of the intervening dielectric layer, so that a sustain discharge is generated between the transparent electrode X1b of the row electrode X1 and the transparent electrode Y1b of the row electrode Y1 when the PDP is driven. There is no risk of the discharge voltage rising.

  Furthermore, according to the PDP having the above-described configuration, the electric field lines generated between the transparent electrodes X1b and Y1b are arranged by disposing the column electrode discharge part D1b of the column electrode D1 at a position facing the intermediate position of the discharge gap g1. Part of the electric field lines in the vicinity of the surface of the dielectric layer on the discharge gap is attracted to the column electrode discharge part D1b, and the electric field is prevented from concentrating at the center position of the discharge. Be improved.

  In the above description, the example in which the partition walls that divide the discharge space for each discharge cell are formed in a substantially lattice shape by the vertical walls 6A and the horizontal walls 6B has been described. However, the partition walls have a stripe shape extending in the column direction. Anyway.

  5 and 6 show a second example of the embodiment of the PDP according to the present invention. FIG. 5 is a cross-sectional view of the first example of the PDP in the second example at the same position as FIG. FIG. 3 is a perspective view of the substrate on which the electrode of the same example is disposed as viewed from the back side.

  5 and 6, a second dielectric layer 13 is formed on the inner surface of the first dielectric layer 2 to cover the row electrode pair (X1, Y1), and the column of the column electrode D1 of the second dielectric layer 13 is formed. A groove 13B extending in the column direction in parallel with the column electrode discharge part D1b is formed in a portion facing the electrode discharge part D1b.

  In the illustrated example, the groove 13B is formed with the inner surface portion of the first dielectric layer 2 exposed in the discharge cell C1, but is opposed to the column electrode discharge portion D1b of the second dielectric layer 13. The thickness of the portion to be made may be made thinner than the other portions so that the first dielectric layer 2 is not exposed in the discharge cell C1.

  Further, in the illustrated example, the groove 13B is formed in a continuous form in the column direction between adjacent discharge cells C1, but may be formed in an independent form for each discharge cell C1. .

  The structure of the other parts is almost the same as the PDP of the first embodiment described above, and the same reference numerals as those in FIGS. 2 to 4 are given to the same parts.

  In the PDP in this embodiment, an image is formed by the same driving procedure as that of the PDP in the first embodiment. At this time, as in the PDP in the first embodiment, the sustain discharge voltage is prevented from increasing. Is done.

  Further, in the PDP, when a data pulse is applied to the column electrode D1 when the address discharge is generated, the thickness of the dielectric layer of the portion of the column electrode D1 facing the column electrode discharge portion D1b is the second Since the groove 13B formed in the dielectric layer 13 is thinner than the PDP of the first embodiment (in the example shown, only the thickness of the first dielectric layer 2), the column electrode D1 The electric field formed in the discharge cell C1 is strengthened by the potential applied to the first electrode, whereby the discharge voltage of the address discharge generated between the row electrode Y1 and the transparent electrode Y1b is lowered, and sufficient address discharge is performed. Occurrence increases the operating margin.

  Further, in the PDP, the groove portion 13B of the second dielectric layer 13 is formed only in the portion of the column electrode D1 facing the column electrode discharge portion D1b, so that the address discharge d as shown in FIG. Is easily generated only between the column electrode discharge part D1b and the transparent electrode Y1b, and the occurrence of erroneous discharge is prevented, thereby further improving the selectivity of the discharge cell C1.

  8 and 9 show a third example of the embodiment of the PDP according to the present invention, FIG. 8 is a front view schematically showing the PDP in the third example, and FIG. 9 shows V2-V2 of FIG. It is sectional drawing in a line.

  8 and 9, a plurality of strip-like column electrode body portions D2a constituting the column electrode D2 are provided on the inner surface of the front glass substrate 1 constituting the display surface, each extending in the column direction and required in the row direction. They are arranged side by side at intervals.

  Further, on the inner surface of the front glass substrate 1, a plurality of strip-like column electrode discharge portions D2b constituting the column electrode D2 are arranged at equal intervals along the column electrode main body portion D2a for each column electrode main body portion D2a. In addition, the column electrode body D2a is formed integrally with the column electrode body D2a so as to extend in one direction (right direction in the illustrated example) along the row direction from the side of the column electrode body D2a.

  Each column electrode discharge part D2b is located in the predetermined position mentioned later, respectively.

  A first dielectric layer 22 is formed on the inner surface of the front glass substrate 1, and the column electrode body D2a and the column electrode discharge part D2b of the column electrode D2 are covered with the first dielectric layer 22.

  On the back surface of the first dielectric layer 22, a plurality of row electrode pairs (X2, Y2) each constituting one display line L2 extend in the row direction of the front glass substrate 1 (left and right direction in FIG. 8). In addition, they are juxtaposed so as to be arranged at equal intervals in the column direction.

  The row electrode X2 constituting the row electrode pair (X2, Y2) is disposed at equal intervals along the bus electrode X2a and a strip-like bus electrode X2a extending in the row direction of the front glass substrate 1. A row electrode Y2 connected to X2a and paired with the bus electrode X2a and a transparent electrode X2b projecting in the opposite direction are configured.

  Similarly, the row electrodes Y2 are arranged at regular intervals along the bus electrodes Y2a along with the strip-like bus electrodes Y2a extending in the row direction of the front glass substrate 1, and connected to the bus electrodes Y2a from the bus electrodes Y2a. The row electrode X2 is a pair and the transparent electrode Y1b protrudes in the opposite direction.

  The row electrodes X2 and Y2 are such that the bus electrodes X2a and Y2a are arranged in parallel with each other at a predetermined interval, and the paired transparent electrodes X2b and Y2b are arranged in the column direction. The discharge gap g2 is formed between the bus electrodes X2a and Y2a.

  The row electrode pair (X2, Y2) and the column electrode D2 are arranged so as to have the following positional relationship.

  That is, the column electrode main body D2a of each column electrode D2 is located at a position facing each intermediate position of the transparent electrodes X2b and Y2b aligned at equal intervals in the row direction along the bus electrodes X2a and Y2a of the row electrodes X2 and Y2. The column electrode discharge part D2b is disposed so as to be located at a position facing the front part of the tip of each transparent electrode Y2b.

  A second dielectric layer 23 is formed on the back surface of the first dielectric layer 22, and the row electrode pair (X 2, Y 2) is covered with the second dielectric layer 23.

  A groove 23B extending in the column direction is formed in parallel with the column electrode discharge portion D2b in a portion of the second dielectric layer 23 facing the column electrode discharge portion D2b of the column electrode D2.

  In the illustrated example, the groove 23B is formed with the inner surface portion of the first dielectric layer 22 exposed in the discharge cell C1, but is opposed to the column electrode discharge portion D2b of the second dielectric layer 23. The thickness of the portion to be made may be made thinner than the other portions so that the first dielectric layer 22 is not exposed in the discharge cell C1.

  Further, the groove 23B may be formed in a form continuous in the column direction between adjacent discharge cells C1, or may be formed in an independent form for each discharge cell C1.

  On the back side of the second dielectric layer 23, a band-like region extending in the row direction between the transparent electrode X2b of the row electrode X2 and the column electrode discharge part D2b of the column electrode D2 when viewed from the front glass substrate 1 side. A raised dielectric layer 23A that protrudes from the back surface of the second dielectric layer 23 is formed in a portion that faces the upper end of the second dielectric layer 23 so as to extend in a strip shape in the row direction.

  The structure of the other parts is almost the same as the PDP of the first embodiment described above, and the same reference numerals as those in FIGS. 2 to 4 are given to the same parts.

  In the PDP, the address discharge is performed between the column electrode discharge part D2b of the column electrode D2 and the transparent electrode Y2b of the row electrode Y2, and the sustain discharge is performed with the bus electrode X2a of the row electrode X2 of each row electrode pair (X2, Y2). This is performed via the discharge gap g2 between the row electrode Y2 and the bus electrode Y2a.

  According to the PDP, an image is formed by the same driving procedure as that of the PDP of the first embodiment. At this time, the sustain discharge voltage rises as in the PDP of the first embodiment. Is prevented.

  Further, in the PDP, the groove 23B is formed in the portion of the second dielectric layer 2 opposite to the column electrode discharge portion D2b of the column electrode D2, so that the address discharge is the same as in the second embodiment. The discharge voltage decreases, sufficient address discharge occurs, and the operation margin widens.

  In the above embodiment, an example in which the groove 23B is formed in the second dielectric layer 23 is shown, but the groove is not necessarily formed.

  FIG. 10 is a front view schematically showing a PDP in the fourth example of the embodiment of the present invention.

  In FIG. 10, each row electrode of the PDP in the third embodiment described above has a transparent electrode protruding from the bus electrode, whereas the PDP in this embodiment has each row of the row electrode pair (X3, Y3). The electrodes X3 and Y3 are constituted only by strip-shaped bus electrode portions extending in the row direction, a discharge gap g2 is formed between the row electrodes X3 and Y3, and the row electrode Y3 is a column electrode of the column electrode D2. It faces the column electrode discharge part D2b protruding from the main body part D2a.

  The column electrode D2 is formed on the back surface of the front glass substrate (not shown) and is covered with the first dielectric layer, and the row electrode pair (X3, Y3) is formed on the back surface of the first dielectric layer. Covered by two dielectric layers.

  The structure of the other parts is almost the same as that of the third embodiment, and the same reference numerals are given to the same parts.

  Also in this PDP, as in the first to third embodiments, in the PDP in which the row electrode pair and the column electrode are formed on one glass substrate side, the row electrode pair (X3, Y3) and the discharge cell C1. Therefore, the sustain discharge voltage is prevented from increasing.

  Furthermore, the PDP can reduce the electrode area because the row electrodes X3 and Y3 are constituted only by the strip-like bus electrode portions.

  FIG. 11 is a front view schematically showing a PDP in the fifth example of the embodiment of the present invention.

  In FIG. 11, although the column electrodes of the PDP in the fourth embodiment described above are each constituted by a column electrode main body portion extending in the column direction and a column electrode discharge portion projecting in the row direction from the column electrode main body portion. On the other hand, in the PDP in this embodiment, the column electrode D3 is constituted only by a strip-shaped main body portion extending in the column direction at a portion facing the discharge cell C1.

  The column electrode D3 is formed on the inner surface of the front glass substrate (not shown) and covered with the first dielectric layer, and the row electrode pair (X3, Y3) is formed on the inner surface of the first dielectric layer to form the first electrode (not shown). Covered by two dielectric layers.

  The structure of the other parts is almost the same as that of the fourth embodiment, and the same reference numerals are given to the same parts.

  Also in this PDP, as in the first to fourth embodiments, in the PDP in which the row electrode pair and the column electrode are formed on one glass substrate side, the row electrode pair (X3, Y3) and the discharge cell C1. Therefore, the sustain discharge voltage is prevented from increasing.

  Further, the PDP is composed of only the bus electrode portions in which the row electrodes X3 and Y3 extend in a strip shape, and the column electrode D3 is also composed only of a main body portion extending in a strip shape, whereby the electrode area can be further reduced. .

It is a front view which shows the structure of the conventional PDP. It is a front view which shows the 1st Example in embodiment of PDP by this invention. It is sectional drawing in the V1-V1 line | wire of FIG. It is a perspective view which shows the structure by the side of the front glass substrate of the Example. It is sectional drawing which shows the 2nd Example in embodiment of PDP by this invention. It is a perspective view which shows the structure by the side of the front glass substrate of the Example. It is explanatory drawing which shows the generation | occurrence | production state of the address discharge in the Example. It is a front view which shows the 3rd Example in embodiment of PDP by this invention. It is sectional drawing in the V2-V2 line | wire of FIG. It is a front view which shows the 4th Example in embodiment of PDP by this invention. It is a front view which shows the 5th Example in embodiment of PDP by this invention.

Explanation of symbols

1 ... Front glass substrate (one substrate)
2, 22 ... 1st dielectric layer (dielectric layer)
3, 13, 23 ... second dielectric layer (dielectric layer)
4 ... Back glass substrate (the other substrate)
6 ... partition wall 6A ... vertical wall (partition wall)
13B, 23B ... Groove (recess)
C1 ... discharge cell (unit emission region)
D1, D2, D3 ... column electrodes D1a, D2a ... column electrode main body D1b, D2b ... column electrode discharge parts X1, Y1, X2, Y2, X3, Y3
... Row electrodes X1a, Y1a, X2a, Y2a
... Bus electrodes X1b, Y1b, X2b, Y2b
... Transparent electrodes g1, g2 ... Discharge gap

Claims (10)

A pair of substrates opposed to each other through the discharge space, a plurality of row electrode pairs arranged on one side of the pair of substrates and extending in the row direction and arranged in parallel in the column direction and in the column direction And a plurality of column electrodes arranged side by side in the row direction and a dielectric layer covering each of the row electrode pairs and the column electrodes, and a plurality of discharges are performed in the discharge space by the row electrode pairs and the column electrodes, respectively. In the plasma display panel in which the unit light emitting areas are formed in a matrix,
The row electrode pair and the column electrode are disposed at positions spaced apart from each other in the thickness direction of the substrate in the dielectric layer, and the row electrode pair is positioned on the discharge space side with respect to the column electrode. Plasma display panel.   The one substrate is a front substrate constituting a display surface, and a column electrode is disposed at a position close to the front substrate in a dielectric layer formed on the inner surface side of the front substrate. The plasma display panel according to claim 1, wherein the pair of row electrodes is arranged at a position spaced apart from each other.   The column electrode is formed on the inner surface side of the front substrate and covered with a first dielectric layer, and the row electrode pair is formed on the inner surface side of the first dielectric layer and covered with a second dielectric layer. 3. The plasma display panel according to 2.   The column electrode has a column electrode main body extending in the column direction and a plurality of column electrode discharge portions extending from the column electrode main body for each unit light emitting region and facing each unit light emitting region. 2. The plasma display panel according to 1.   5. The thickness of the substrate in the thickness direction of the portion of the dielectric layer covering the column electrode discharge portion of the column electrode is thinner than the thickness of the other portion of the dielectric layer. Plasma display panel.   The column electrode discharge portion of the column electrode extends in the row direction from the column electrode main body portion, and faces the unit light emitting region at a portion facing the column electrode discharge portion of the dielectric layer covering the column electrode. 6. The plasma display panel according to claim 5, wherein a concave portion extending in parallel with the column electrode discharge portion is formed.   The column electrodes are formed on the inner surface side of the front substrate and covered with the first dielectric layer, and the row electrode pairs are formed on the inner surface side of the first dielectric layer and covered with the second dielectric layer, The electrode has a column electrode main body portion extending in the column direction, and a column electrode discharge portion extending from the column electrode main body portion for each unit light emitting region and facing each unit light emitting region, and a second dielectric layer The plasma display panel according to claim 2, wherein a concave portion is formed at a position facing the column electrode discharge portion.   5. The plasma display panel according to claim 4, wherein the column electrode discharge portion of the column electrode extends from the column electrode main body portion to a position facing an intermediate position of a discharge gap formed between the row electrodes of the row electrode pair. .   The plasma display panel according to claim 4, wherein the column electrode discharge portion of the column electrode extends from the column electrode main body portion toward a position facing one of the row electrode pairs.   5. The partition wall extending in the column direction and partitioning adjacent unit light emitting regions in the row direction is formed at a position facing the column electrode main body portion of the other substrate of the pair of substrates. Plasma display panel.

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