JP4208761B2 - Plasma display device - Google Patents

Description

  The present invention relates to a plasma display device used for a flat-screen television, an information display, and the like, and more particularly to a high-definition and bright display AC surface discharge plasma display device.

  A plasma display is a display device that performs display by exciting and emitting phosphors with ultraviolet rays generated by gas discharge, and is expected to be applied to large-screen televisions and information display devices. Various types of color plasma displays have been developed, but the AC surface discharge type plasma display is superior in terms of brightness and ease of panel manufacture. FIG. 18 is a schematic diagram showing the structure of a typical reflective AC surface discharge type color plasma display panel. FIG. 19A is a schematic diagram showing the positional relationship among scan electrodes, sustain electrodes, and bus electrodes that constitute surface discharge electrodes in a conventional color plasma display panel, and FIG. 19B shows barrier ribs and data electrodes. It is a schematic diagram which shows the positional relationship between these.

  In a front substrate 100 serving as a display-side substrate, a plurality of strip-shaped transparent electrode films 3 and narrow strip-shaped bus electrodes 4 are formed in parallel on a glass substrate 1 as surface discharge electrodes. As the transparent electrode film 3, an ITO thin film or a tin oxide thin film can be used. However, in order to flow a discharge current sufficient for light emission of a large-area panel, the electric resistance of these thin films is large. For this reason, a metal bus electrode 4 having high conductivity is provided. As such a bus electrode 4, for example, an electrode made of thick film silver or a metal thin film such as copper, aluminum, or chromium is used. A dielectric layer 7 is formed on the bus electrode 4. In general, the dielectric layer 7 is formed as follows. First, a low melting point glass paste is applied onto the transparent electrode film 3 on which the bus electrode 4 is formed, and this is baked at a high temperature to form a transparent glass layer having a thickness of about 20 to 40 μm and a high withstand voltage. To do. Thereafter, a magnesium oxide thin film having a large secondary electron emission coefficient and excellent sputter resistance is formed on the glass layer as a surface protective layer.

  On the other hand, in the rear substrate 200 arranged in parallel with the front substrate 100, a plurality of strip-shaped data electrodes 5 and a dielectric layer 10 covering these data electrodes 5 are formed on the glass substrate 2. The dielectric layer 10 is mainly composed of low melting point glass. A strip-shaped partition wall 6 extending in the vertical direction (column direction) is formed on the dielectric layer 10. The partition wall 6 is a structure having a width of about 30 to 120 μm and a height of about 80 to 150 μm, and is generally composed of a mixture of oxide powder such as alumina and low-melting glass. A phosphor layer 9 made of a powdered phosphor and emitting red, green or blue light is applied to the bottom and side surfaces of a plurality of grooves defined by the barrier ribs 6. The luminescent colors of the phosphor layers 9 are arranged in the horizontal direction (row direction) in the order described above.

  The rear substrate 200 and the front substrate 100 are combined, the periphery of both substrates is sealed with frit glass, and after being heated and exhausted, a discharge gas containing a rare gas as a main component is enclosed. In this way, a color plasma display panel is configured.

  The partition wall 6 secures a discharge space and prevents crosstalk and bleed color bleeding during discharge.

  In the front substrate 100, the surface discharge electrodes are paired with the surface discharge gap 11 interposed therebetween. That is, one is a surface discharge electrode (scanning electrode) 13 and the other is a surface discharge electrode (sustain electrode) 14. The conventional color plasma display panel is driven and displayed by applying various voltage waveforms to three types of electrodes including the electrodes 13 and 14 and the data electrode 5 provided on the rear substrate 200.

  FIG. 22 is a timing chart showing drive waveforms applied to the respective electrodes with Sn as the scan electrode in the nth row and Cn as the sustain electrode.

  Scan pulses are sequentially applied to the scan electrodes Sn, Sn + 1, Sn + 2, Sn + 3,. In synchronization with this timing, a data pulse having a polarity opposite to that of the scan pulse is applied to the data electrode Dj in accordance with the display data of the display cell on the scan electrode. As a result, a counter discharge is generated between the scan electrodes Sn,... And the data electrode Dj. By the address operation by this counter discharge, positive wall charges are generated on the surface of the scan electrodes Sn,. In the display cell in which the wall charges are generated, surface discharge is generated by the sustain pulse applied between the sustain electrode Cm and the scan electrodes Sn,.

  On the other hand, since no data pulse is applied and no discharge is generated between the data electrode and the scan electrode, there is no effect of superposition of the electric field due to the wall charge in the display cell in which the wall charge is not generated and writing is not performed. Therefore, no sustain discharge occurs even when a sustain pulse is applied.

  Then, a sustaining pulse is applied a predetermined number of times to the display cell where the wall charges are generated, thereby performing light emission display.

  Since it is not necessary to apply a pulse selected for each sustain electrode to the sustain electrode Cm, each sustain electrode Cm is connected in common, and the same voltage waveform is applied as shown in FIG. ing. In practical panels, in order to improve the write operability, activation in the cells and appropriate wall charges are performed by a pre-discharge operation in which a high voltage is applied to all cells prior to the write operation and the discharge is forced. A preparation sequence for the purpose of generation is employed.

  The subfield method is adopted for gradation display of the AC plasma display. This is because voltage modulation of light emission display luminance is difficult in the AC type plasma display, and it is necessary to change the number of times of light emission for luminance modulation. In the subfield method, a multi-gradation image is decomposed into a plurality of binary display images and continuously displayed at a high speed to reproduce the multi-gradation image by visual integration effect.

  However, although such a conventional surface discharge AC plasma display has excellent characteristics, as can be seen from the structure of the surface discharge electrode shown in FIG. A surface discharge electrode is required. The surface discharge gap in such a surface discharge electrode is relatively narrow, about 50 to 100 μm. However, the non-discharge gap provided between the adjacent display rows in the vertical direction is a surface discharge gap in order to avoid discharge crosstalk. A width of about three times or more is required. Further, the metal bus electrode 4 is required to have a width of about 100 μm because of the specific resistance of the material and the limit of the manufacturing technology of the large area panel. Due to such a limitation, as the pixel pitch becomes narrower and the resolution becomes higher, the area and aperture ratio of the surface discharge electrode become smaller, which makes it difficult to achieve high luminance.

  Further, since the number of scans increases as the resolution is increased, it is necessary to shorten the scan time required for writing per row. In a normal television and a 480-line VGA class, full-color display by the subfield method is possible. However, in an HDTV (high-density television) and a high-resolution display having about 1000 lines, the scanning time is extremely short. Therefore, it is difficult to perform reliable operation, and writing failure and erroneous lighting occur to prevent a good display from occurring.

  Therefore, for the purpose of improving the area of the surface discharge electrode and the aperture ratio, a color plasma display panel has been proposed in which a partition wall extending in the horizontal direction is provided and a bus electrode is provided thereon. Hereinafter, such a color plasma display panel is referred to as a second conventional example, and the above-described conventional color plasma display panel is referred to as a first conventional example. FIG. 20A is a schematic diagram showing the positional relationship in the second conventional example among the scan electrode, sustain electrode, and bus electrode constituting the surface discharge electrode, and FIG. 20B is the second diagram between the barrier rib and the data electrode. It is a schematic diagram which shows the positional relationship in the prior art example.

  In the second conventional example, as shown in FIG. 20A, the surface discharge electrode provided on the front substrate has a wide transparent electrode 15 extending in the horizontal direction, and a bus disposed at the center of the transparent electrode 15. The electrode 16 is configured. Further, as shown in FIG. 20B, the partition wall 17 is composed of a horizontal partition wall 17a extending in the horizontal direction and a vertical partition wall 17b for further dividing the groove partitioned by the horizontal partition wall 17a into a plurality of display cells. Yes. However, the position of the vertical barrier rib 17b is shifted by half of the display cell between adjacent one display rows. That is, the display cells are arranged in a triangle between adjacent display rows. The bus electrode 16 is assembled so as to overlap the horizontal partition wall 17a in plan view.

  In the second conventional example configured as described above, a single surface discharge electrode has a so-called double-sided surface discharge electrode structure extending over two adjacent rows, and the first surface discharge electrode shown in FIG. Compared with the conventional example, there is no light shielding and non-discharge gap by the bus electrode. Therefore, the effective area and aperture ratio of the surface discharge electrode are increased.

  Further, as shown in FIG. 20 (b), since the data electrodes 18 are alternately sewn between the display cells every one, the same waveform as in FIG. 22 despite the double-sided discharge electrode structure. With this driving, each display cell can be independently selected and written.

  However, when the display cells are arranged in a triangular pattern, there are problems such as slightly mixed colors and slightly inferior sharpness of character display as compared with the stripe array as in the first conventional example. In the second conventional example, if the number of rows is 480, for example, 480 scan electrodes and 480 + 1 sustain electrodes are required, which is difficult to realize a high-definition high-resolution plasma display panel such as an HDTV. Is accompanied. Further, since the display cell is completely partitioned by the partition walls 17a and 17b in order to prevent discharge crosstalk, the exhaust conductance in the manufacturing process is extremely small. For this reason, it takes a long time for the exhaust treatment, and the panel characteristics are likely to deteriorate due to residual impurities. In particular, this problem becomes more serious in large-area and high-definition panels.

  A color plasma display panel having a simplified structure by changing the driving method has been proposed (see, for example, Patent Document 1 (Japanese Patent Laid-Open No. 11-65518)). Hereinafter, this conventional color plasma display panel is referred to as a third conventional example. FIG. 21A is a schematic diagram showing the positional relationship in the third conventional example among the scan electrode, the sustain electrode, and the bus electrode constituting the surface discharge electrode, and FIG. 21B is a third diagram between the barrier rib and the data electrode. It is a schematic diagram which shows the positional relationship in the prior art example.

  In the third conventional example, the transparent electrodes and bus electrodes constituting the sustain electrodes Cn,... In the second conventional example are removed, and the transparent electrodes 19 constituting the scan electrodes Sn, Sn + 1, Sn + 2, Sn + 3,. The vertical dimension is large. Further, the barrier ribs 22 have a cross-beam shape, and the arrangement of display cells partitioned by the barrier ribs 22 is a stripe arrangement.

  In the third conventional example configured as described above, if the number of rows is 480, for example, the number of necessary surface discharge electrodes is 480 + 1. Further, as can be easily understood from FIGS. 21A and 21B, the area of the surface discharge electrode that is directly related to the light emission luminance per unit display area is larger than that of the first and second conventional examples. be able to. Thus, since the number of surface discharge electrodes can be reduced and the area of the surface discharge electrodes can be increased, the third conventional example is extremely important in a high-resolution and high-definition plasma display panel having a large number of scanning lines. It is valid.

JP-A-11-65518

  However, although the third conventional example can achieve the intended purpose, it needs to be operated by a special interlace driving method and has a problem that the operation margin is narrow. Further, as in the second conventional example shown in FIG. 20B, since each display cell is partitioned by the partition wall 22, it takes a very long time for exhaust in the manufacturing process, and the in-plane uniformity of the panel characteristics. There is also a problem that it is difficult to obtain. For this reason, practical use is difficult.

  The present invention has been made in view of such problems, and by obtaining a large surface discharge electrode area and aperture ratio, it is possible to perform high-resolution and high-definition display and ensure a wide operating margin. An object of the present invention is to provide a plasma display device capable of performing

A first plasma display device according to the present invention extends to a plurality of bus electrodes extending in a row direction and driven independently from each other, and cells adjacent to each other in a first column direction as viewed from the bus electrodes. A first display discharge electrode; a second display discharge electrode extending into a cell adjacent to the second column direction opposite to the first column direction when viewed from the bus electrode; and data extending in the column direction And the first display discharge electrode and the second display discharge electrode are separated between display cells adjacent in the row direction, and the width of the first display discharge electrode in the row direction is the first display discharge electrode. The width of the second display discharge electrode in the row direction, or the width of the first display discharge electrode in the first direction in the row direction is the second of the second display discharge electrode. The first table by being wider than the width in the row direction at the tip of the direction; By cross-sectional area of the distal end portion of the first direction of the discharge electrodes is wider than the cross-sectional area of the distal end portion of the second direction of the second display discharge electrodes, the data electrode and the first display discharge electrodes The discharge start voltage between the second display discharge electrode and the data electrode is smaller than the discharge start voltage between the second display discharge electrode and the data electrode.

The second plasma display device according to the present invention extends in a cell adjacent to the plurality of bus electrodes extending in the row direction and driven independently from each other and in the first column direction as viewed from the bus electrodes. A first display discharge electrode; a second display discharge electrode extending into a cell adjacent to the second column direction opposite to the first column direction when viewed from the bus electrode; and data extending in the column direction And a dielectric film formed on the first display discharge electrode by forming a projecting portion having electrical conductivity on the first display discharge electrode. Since the thickness is smaller than the thickness of the dielectric film formed on the second display discharge electrode, the discharge start voltage between the first display discharge electrode and the data electrode is changed to the second display discharge electrode. this, which is a discharge starting voltage smaller ones between the data electrodes and the display discharge electrodes The features.

A third plasma display device according to the present invention includes a plurality of bus electrodes extending in the row direction and driven independently of each other, and extending into cells adjacent in the first column direction as viewed from the bus electrodes. A first display discharge electrode; a second display discharge electrode extending into a cell adjacent to the second column direction opposite to the first column direction when viewed from the bus electrode; and data extending in the column direction And the width in the row direction of the data electrode at the portion facing the first display discharge electrode is narrower than the width in the row direction at the portion facing the second display discharge electrode. Thus, the discharge start voltage between the first display discharge electrode and the data electrode is made smaller than the discharge start voltage between the second display discharge electrode and the data electrode. To do.

The fourth plasma display device according to the present invention extends in a cell adjacent to each other in the first column direction when viewed from the bus electrodes, and a plurality of bus electrodes extending in the row direction and driven independently of each other. A first display discharge electrode; a second display discharge electrode extending into a cell adjacent to the second column direction opposite to the first column direction when viewed from the bus electrode; and data extending in the column direction And a portion of the data electrode facing the second display discharge electrode is arranged in a row direction away from the center of the cell and faces the first display discharge electrode of the data electrode The portion to be arranged so as to overlap the center of the cell, or the distance between the portion of the data electrode facing the first display discharge electrode and the first display discharge electrode is A portion of the data electrode facing the second display discharge electrode And by less than the distance between said second display discharge electrodes, and said data electrode discharge starting voltage and the second display discharge electrodes between the data electrode and the first display discharge electrodes It is characterized by being smaller than the discharge start voltage between.

A fifth plasma display device according to the present invention includes a plurality of bus electrodes extending in the row direction and driven independently from each other, and extending into cells adjacent in the first column direction as viewed from the bus electrodes. A first display discharge electrode; a second display discharge electrode extending into a cell adjacent to the second column direction opposite to the first column direction when viewed from the bus electrode; and data extending in the column direction A dielectric layer existing between a portion of the first display discharge electrode and a portion of the data electrode facing a portion of the first display discharge electrode. by thinner than the thickness of the dielectric layer present between the portion and the portion facing the portion of the second display discharge electrodes of the data electrodes of the second display discharge electrodes, or the first display discharge A portion of the electrode and a portion of the first display discharge electrode of the data electrode The dielectric constant of the dielectric layer existing between the opposing portions exists between a portion of the second display discharge electrode and a portion of the data electrode facing a portion of the second display discharge electrode. By making the dielectric constant greater than the dielectric constant of the dielectric layer, the discharge start voltage between the first display discharge electrode and the data electrode is greater than the discharge start voltage between the second display discharge electrode and the data electrode. It is characterized by being made small.
A sixth plasma display device according to the present invention includes a plurality of bus electrodes extending in the row direction and driven independently from each other, and extending into cells adjacent in the first column direction when viewed from the bus electrodes. A first display discharge electrode; a second display discharge electrode extending into a cell adjacent to the second column direction opposite to the first column direction when viewed from the bus electrode; and data extending in the column direction a and the electrode, the two larger electron emission coefficient of the first display secondary electron emission coefficient covering said second display discharge electrodes dielectric layer surface of the surface of the discharge electrode covering the dielectric layer Thus, the discharge start voltage between the first display discharge electrode and the data electrode is made smaller than the discharge start voltage between the second display discharge electrode and the data electrode. To do.
A seventh plasma display device according to the present invention includes a plurality of first and second substrates disposed opposite to each other, and a plurality of substrates disposed on the first substrate and extending in a row direction and independently driven. A bus electrode; a first display discharge electrode extending into a cell adjacent in the first column direction as viewed from the bus electrode; and a second electrode opposite to the first column direction as viewed from the bus electrode A second display discharge electrode extending in a cell adjacent in the column direction; and a data electrode disposed on the second substrate and extending in the column direction, each between adjacent display cells in the row direction. The first display discharge electrode and the second display discharge electrode are separated, and the width of the first display discharge electrode in the row direction is wider than the width of the second display discharge electrode in the row direction, or The width in the row direction at the tip of the first display discharge electrode in the first direction is the second width. When the display discharge electrode is wider than the width in the row direction at the tip portion in the second direction, or the sectional area of the tip portion in the first direction of the first display discharge electrode is the second display discharge electrode. The discharge start voltage between the first display discharge electrode and the data electrode is between the second display discharge electrode and the data electrode. It is characterized by being smaller than the discharge start voltage.

  The plurality of bus electrodes may include a first group to which the scan pulse is applied every second, a second group to which the first voltage is applied, and a third group to which the second voltage is applied. The first group to which the scan pulse is applied every three or more, the second group to which the first voltage is applied, and the second voltage are applied. You may divide into the 3rd group and the 1 or 2 or more group which does not contain the bus electrode which belongs to these 1st thru | or 3rd group.

  Further, the plurality of bus electrodes include a first electrode, a second electrode, a third electrode,..., An (n × 3 + 1) electrode, an (n × 3 + 2) electrode, and an (n × 3 + 3) electrode in order of arrangement. (N is a natural number), the plurality of bus electrodes are a first group consisting of a first electrode and an (n × 3 + 1) electrode, a second group consisting of a second electrode and an (n × 3 + 2) electrode, a third The scan group is divided into a third group of electrodes and (n × 3 + 3) electrodes, and the scan period sequentially scans the first group of bus electrodes to the first group of bus electrodes and the second group of bus electrodes. You may have the 2nd scanning period which applies a pulse, and the 3rd scanning period which applies a scanning pulse sequentially to the 3rd group bus electrode.

  Alternatively, the plurality of bus electrodes include a first electrode, a second electrode, a third electrode,..., An (n × m + 1) electrode, an (n × m + 2) electrode, and an (n × m + 3) electrode in the arrangement order. (N is a natural number, m is an integer of 4 or more), and the plurality of bus electrodes are from a first group including a first electrode and an (n × m + 1) electrode, a second electrode, and an (n × m + 2) electrode. Divided into a second group, a third group consisting of a third electrode and an (n × m + 3) electrode, and one or more groups not including bus electrodes belonging to the first to third groups, and scanning The period may be sequentially scanned for each group.

  Alternatively, the plasma display device applies the first voltage before applying the scan pulse to each of the plurality of bus electrodes during the scan period, and applies the second voltage after applying the scan pulse. May be.

  According to the present invention, a high-resolution and high-definition display can be performed in a plasma display device, and a wide operation margin can be secured. In addition, high light emission luminance and light emission efficiency can be realized. In particular, the effect in a high-resolution high-definition panel is particularly great, and an HDTV and a high-resolution display with excellent performance can be manufactured at low cost.

  Hereinafter, a plasma display panel and a plasma display apparatus according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, the structure of the plasma display panel according to the embodiment will be described, and then the driving method of the embodiment of the display device according to the embodiment incorporating these panels will be described. In the following description, the vertical direction and the horizontal direction refer to the vertical direction and the horizontal direction when the plasma display device is used while being hung on a wall or the like, respectively, and the column direction and the row in the claims. It corresponds to the direction, and when simply referred to as the vertical direction, it indicates the vertical direction in the thickness direction of the glass substrate or the like. Moreover, as a reference | standard of an up-down direction, let the direction in which a laminated body is laminated | stacked on a glass substrate in a manufacturing process be an upward direction.

  FIG. 1 is a schematic diagram showing the structure of a plasma display panel according to a first embodiment of the present invention.

  A plurality of rectangular transparent electrode films 3 are arranged in a matrix on the glass substrate 1. The transparent electrode film 3 is formed, for example, by patterning an ITO transparent conductor thin film into an elongated strip shape. The horizontal and vertical pixel pitches in this embodiment are both 0.81 mm, for example, and the dimensions of the rectangular transparent electrode film 3 are, for example, 0.74 mm in the vertical direction and 0.19 mm in the horizontal direction. The pitch is, for example, 0.81 mm in the vertical direction and 0.27 mm in the horizontal direction, but the present invention is not limited to these.

  A plurality of bus electrodes 4 extending in the horizontal direction are provided so as to connect the central portions of the plurality of transparent electrode films 3 forming a row. The portions of the transparent electrode film 3 that protrude from both sides of the bus electrode 4 are display discharge electrodes 8. In this way, the double-sided discharge electrode 300 having a structure in which the display discharge electrode 8 extends from the bus electrode 4 to both sides thereof is configured. Electric power is supplied to the display discharge electrode 8 from the outside via the bus electrode 4. The bus electrode 4 is formed of, for example, a photosensitive silver thick film, and the width thereof is, for example, 0.1 mm. In addition, the bus electrode 4 has a laminated structure of two layers of black and white including, for example, a black layer provided on the display side and a low-resistance white layer provided thereon in order to increase display contrast.

  Further, a transparent dielectric layer 7 made of a glaze layer and a MgO surface protective layer is formed on the glass substrate 1 so as to cover both side discharge electrodes 300 made up of the transparent electrode film 3 and the bus electrode 4. In this way, the front substrate 100 is configured.

  On the other hand, in the rear substrate 200 arranged in parallel with the front substrate 100, a plurality of data electrodes 5 extending in the vertical direction are formed on the glass substrate 2. The data electrode 5 can be formed, for example, by forming an aluminum thin film on the glass substrate 2 by sputtering and patterning it by etching. The width of the data electrode 5 is, for example, 0.09 mm, and the pitch is, for example, 0.27 mm.

  A dielectric layer 7 covering the data electrode 5 is formed on the glass substrate 2, and a grid-like partition comprising a vertical partition 6a extending in the vertical direction and a horizontal partition 6b extending in the horizontal direction on the dielectric layer 7. Is formed. The dielectric layer 10 is mainly composed of low melting point glass. The vertical barrier ribs 6a and the horizontal barrier ribs 6b are formed by, for example, sandblasting. The upper width of the vertical barrier ribs 6a is, for example, about 40 μm, and the upper width of the barrier ribs 6b is, for example, about 100 μm. It is not limited to.

  Further, a phosphor layer 9 made of phosphor powder and emitting red, green or blue light is applied to the bottom and side surfaces of the plurality of concave portions defined by the barrier ribs 6a and 6b. The luminescent colors of the phosphor layers 9 are arranged in the horizontal direction in the order described above. In this way, the back substrate 200 is configured.

  The rear substrate 200 and the front substrate 100 are combined, the periphery of both substrates is sealed with frit glass, and after being heated and exhausted, a discharge gas containing a rare gas as a main component is enclosed. In this way, a color plasma display panel is configured. As shown in FIG. 1, the back substrate 200 and the front substrate 100 are arranged such that the bus electrodes 4 overlap the horizontal barrier ribs 6b in plan view, and the gaps between the display discharge electrodes 8 adjacent in the horizontal direction are vertical barrier ribs 6a. Assembling is performed by aligning the vertical and horizontal directions.

  In the first embodiment configured as described above, the bus electrode 4 for supplying power to the display discharge electrode 8 overlaps the horizontal barrier rib 6b in a plan view, and the display discharge electrode 8 is provided between display cells adjacent in the horizontal direction. Since they are separated, a wide driving margin can be secured by a simple driving method described later. Further, since the aperture ratio is high and the area of the display discharge electrode 8 can be widened, high luminance can be obtained.

  Note that the shape is not particularly limited to a rectangle as long as the display discharge electrodes are effectively separated between display cells adjacent in the horizontal direction. Hereinafter, second to fifth embodiments in which the display discharge electrodes in the first embodiment are modified will be described. 2A is a schematic plan view showing the display discharge electrode in the second embodiment, FIG. 2B is a schematic plan view showing the display discharge electrode in the third embodiment, and FIG. 2C is the fourth implementation. FIG. 5D is a schematic plan view showing a display discharge electrode in an example, and FIG. 6D is a schematic plan view showing a display discharge electrode in a fifth embodiment.

  In the second embodiment, as shown in FIG. 2A, a comb-like transparent electrode film 3-2 is provided, and a portion protruding from the comb-shaped shaft portion is a display discharge electrode. 8-2. The bus electrode 4 is aligned with the shaft portion of the comb teeth.

  In the second embodiment configured as described above, the contact area between the bus electrode 4 and the transparent electrode film 3-2 constituting the display discharge electrode 8-2 is larger than that in the first embodiment. The electrical connection between them is improved, which is effective in preventing dark spots.

  In the third embodiment, as shown in FIG. 2 (b), the transparent electrode film 3-3 is formed such that the width of both end portions is wider than the width of the central portion. In other words, the display discharge electrode 8-3 formed so that the width of the tip end portion is wider than the width of the connection portion with the bus electrode 4 is provided.

  In the panel manufacturing process, the relative position between the transparent electrode and the bus electrode may be displaced, or the horizontal partition may be displaced from the central portion of the bus electrode or the transparent electrode. However, as in the first embodiment shown in FIG. In the rectangular electrode, the area of the display discharge electrode becomes uneven between the upper side and the lower side of the bus electrode according to the shift. Since the intensity of the surface discharge is affected by the electrode having the smaller area, the luminance decreases with the magnitude of the deviation. On the other hand, when the width of the display discharge electrode 8-3 is narrow in the vicinity of the connection portion with the bus electrode 4 as in the third embodiment shown in FIG. However, the change in the electrode area is reduced. For example, when the width of the display discharge electrode 8-3 in the vicinity of the bus electrode 4 is one third of the wide portion at the tip, the amount of change in luminance is reduced to one third for the same deviation. As a result, the margin for deviation can be increased. In addition, since the discharge spread to a region close to the bus electrode 4 and the horizontal barrier rib 6b is small, there is an effect that the light emission efficiency is improved.

  In the fourth embodiment, as shown in FIG. 2C, the display discharge electrode 8-4 is connected to the bus electrode 4, the metal pattern 3-4b having a narrow width and high conductivity, and a rectangle connected to the metal pattern 3-4b. Transparent electrode film 3-4a. The metal pattern 3-4b may be patterned simultaneously with the patterning of the bus electrode 4, for example.

  Also in the fourth embodiment configured as described above, as in the third embodiment, the deviation margin can be increased, and the light emission efficiency can be improved.

  In the fifth embodiment, as shown in FIG. 2D, the display discharge electrode 8-5 is formed in a mesh pattern.

  In the fifth embodiment configured as described above, since the transparent electrode is not used for the display discharge electrode 8-5, the manufacturing process can be simplified. That is, the metal thin film may be patterned simultaneously with the patterning of the bus electrode 4.

  The shape of the display discharge electrode may be more complicated than that of the first to fifth embodiments shown in FIGS. 1 and 2A to 2D.

  Next, sixth to tenth embodiments of the present invention will be described. In the sixth to tenth embodiments, the shape of the display discharge electrode connected to the bus electrode is different between the vertical upper side and the vertical lower side of the bus electrode. Hereinafter, the plasma display panels according to the first to fifth embodiments are referred to as symmetric panels, and the plasma display panels according to the sixth to tenth embodiments are referred to as asymmetric panels. 3A is a schematic plan view showing the display discharge electrode in the sixth embodiment, FIG. 3B is a schematic plan view showing the display discharge electrode in the seventh embodiment, and FIG. 3C is the eighth implementation. The schematic plan view which shows the display discharge electrode in an example, (d) is a schematic plan view which shows the display discharge electrode in a 9th Example, (e) is the schematic plane which shows the display discharge electrode in a 10th Example. FIG.

  In the sixth embodiment, as shown in FIG. 3A, a transparent electrode film 3-6 whose width changes in two stages in the vertical direction of the panel is provided. Specifically, the width of the upper half of each transparent electrode film 3-6 is wider than the width of the lower half. As in the first embodiment, the bus electrode 4 is connected to the central portion of the plurality of transparent electrode films 3-6 forming a row. From the transparent electrode film 3-6, a display discharge electrode 8-6a extending vertically upward from the bus electrode 4 and a display discharge electrode 8-6b extending vertically downward are formed, and the display discharge electrode 8 is formed. The width of −6a is wider than the width of the display discharge electrode 8-6b.

  In the sixth embodiment configured as described above, the width of the display discharge electrode 8-6b positioned vertically above the width of the display discharge electrode 8-6a positioned vertically below is related to one display cell. Becomes narrower. For this reason, the counter discharge start voltage is lower in the display discharge electrode 8-6a, and a counter discharge is easily generated between the display discharge electrode 8-6a and the data electrode provided on the back substrate. For this reason, if a pulse of an intermediate voltage of the counter discharge start voltage of the two display discharge electrodes 8-6a and 8-6b provided in one display cell is applied, the display discharge electrode positioned vertically downward A counter discharge can be generated only between 8-6a and the data electrode. Therefore, a wide driving margin can be secured by a simple driving method described later.

  In the seventh embodiment, as shown in FIG. 3B, a transparent electrode film 3-7 whose width changes in four steps in the vertical direction of the panel is provided. Specifically, each transparent electrode film 3-7 is divided into two at the central portion in the vertical direction, and further divided into two, the width of the lower portion is narrower than the width of the uppermost portion, and the width of the lowermost portion. Also, the width of the upper part is wide, and when the uppermost part and the lowermost part are compared, the width of the uppermost part is wider than the width of the lowermost part. As in the first embodiment, the bus electrode 4 is connected to the central portion of the plurality of transparent electrode films 3-7 forming a row. From the transparent electrode film 3-7, a display discharge electrode 8-7a extending vertically upward from the bus electrode 4 and a display discharge electrode 8-7b extending vertically downward are formed, and the display discharge electrode 8 is formed. The width of the end portion of −7a is wider than the width of the end portion of the display discharge electrode 8-7b.

  In the seventh embodiment thus configured, the display discharge electrode 8-7a in which the width of the end portion of the display discharge electrode 8-7b positioned on the upper vertical side is positioned on the lower vertical side with respect to one display cell. It becomes narrower than the width of the end of the. For this reason, the counter discharge start voltage is lower in the display discharge electrode 8-7a, and the counter discharge is easily generated between the display electrode 8-7a and the data electrode provided on the back substrate. Therefore, similarly to the sixth embodiment, a wide driving margin can be ensured by a simple driving method described later.

  In the eighth embodiment, as shown in FIG. 3C, a transparent electrode film 3-8 having an opening formed at the lower end is provided. As in the first embodiment, the bus electrode 4 is connected to the central portion of the plurality of transparent electrode films 3-8 forming a row. From such a transparent electrode film 3-8, a display discharge electrode 8-8a extending vertically upward from the bus electrode 4 and a display discharge electrode 8- extending vertically downward and having an opening at its end. 8b is formed.

  In the eighth embodiment configured as described above, with respect to one display cell, the cross-sectional area of the tip of the display discharge electrode 8-8b positioned on the vertical upper side is positioned on the vertical lower side by the amount corresponding to the opening. It becomes narrower than the cross-sectional area of the tip of the display discharge electrode 8-8a. For this reason, the counter discharge start voltage is lower in the display discharge electrode 8-8a, and the counter discharge between the data electrodes provided on the rear substrate is likely to occur. Therefore, similarly to the sixth embodiment, a wide driving margin can be ensured by a simple driving method described later.

  In the ninth embodiment, as shown in FIG. 3 (d), a net-like metal composed of a portion made of a mesh-like metal thin film and a portion made of a metal thin film provided at the upper end of which is not formed with a mesh. A membrane 3-9 is provided. As in the first embodiment, the bus electrode 4 is connected to the central portion of the plurality of mesh metal films 3-9 forming a row. From such a net-like metal film 3-9, the display discharge electrode 8-9a which extends from the bus electrode 4 to the upper vertical side thereof and is not provided with a mesh at the end thereof, and the display discharge electrode 8-8b which extends from the lower vertical side. Is formed.

  In the ninth embodiment configured as described above, the cross-sectional area of the tip portion of the display discharge electrode 8-9b positioned on the vertical upper side of one display cell is vertically lower by the amount of the mesh formed. It becomes narrower than the cross-sectional area of the part in which the mesh of the front-end | tip part of the display discharge electrode 8-9a located in is not formed. For this reason, the counter discharge start voltage is lower in the display discharge electrode 8-9a, and the counter discharge is easily generated between the display electrode 8-9a and the data electrode provided on the back substrate. Therefore, similarly to the sixth embodiment, a wide driving margin can be ensured by a simple driving method described later.

  In the tenth embodiment, as shown in FIG. 3E, the vertical direction of the display discharge electrode 8-7 in the seventh embodiment is reversed for each column. In this case, the same effect as that of the seventh embodiment can be obtained. However, the driving method for the tenth embodiment is different from the driving method for the seventh embodiment.

  If one display cell has a different shape between the two display discharge electrodes and their opposite discharge characteristics are different from each other, the shape of the display discharge electrode is as shown in FIGS. The shape may be more complicated than those of the sixth to tenth embodiments shown in FIG.

  Further, the lengths of the display discharge electrodes may be different.

  Next, eleventh and twelfth embodiments of the present invention will be described. In the sixth to tenth embodiments, the shape of the two display discharge electrodes for one display cell is made different from each other, so that their counter discharge characteristics are different. In the twelfth embodiment, the shape of the dielectric film on the front substrate side is different from each other on the two display discharge electrodes. 4A and 4B are views showing a plasma display panel according to an eleventh embodiment of the present invention, in which FIG. 4A is a schematic plan view, and FIG. 4B is a cross section taken along line AA in FIG. FIG. FIG. 5 is a view showing a plasma display panel according to a twelfth embodiment of the present invention, wherein (a) is a schematic plan view, and (b) is taken along line BB in (a). FIG. However, in FIGS. 4 (a) and 4 (b) and FIGS. 5 (a) and 5 (b), some components are omitted in order to clearly represent the desired components. Some of them are not listed on the other.

  In the eleventh embodiment, as shown in FIGS. 4A and 4B, the projection protrudes in the thickness direction on the vertical lower end of the transparent electrode film 3 made of a transparent conductive film such as an ITO thin film. Metal dots 21 are provided. The dots 21 can be easily formed by patterning the photosensitive silver paste at the same time when the bus electrode 4 is formed with the photosensitive silver paste. The thickness of the dot 21 is, for example, about 8 μm. Although the dielectric layer 7-11 covering the display discharge electrode 8 is formed on the glass substrate 1, the dielectric layer 7-11 is slightly raised from the other portions at the positions where the dots 21 are formed. . The thickness of the dielectric layer 7-11 at this portion is, for example, about 5 μm thinner than the thickness of the portion matching the region where the dots 21 of the transparent electrode film 3 are not formed.

  In the eleventh embodiment configured in this way, with respect to one display cell, a dot 21 is provided at the tip of the display discharge electrode 8-11b positioned vertically above, and the display discharge positioned vertically below. Since the electrode 8-11a is not provided with dots, and the thickness of the dielectric layer 7-11 matching that portion is thinner than the thickness of the other portions, the display discharge electrode 8-11b However, the counter discharge start voltage is lowered.

  In addition, although the protrusion part provided with the electrical conductivity provided on the display discharge electrode such as the dot 21 has a larger effect of lowering the counter discharge start voltage, the protrusion part emits light from the phosphor layer. To shield it, it is not a good idea to make it too large. In order to obtain the effect of reducing the discharge start voltage with a smaller protrusion, it is preferable to provide it at a position close to the surface discharge gap.

  In the twelfth embodiment, as shown in FIGS. 5A and 5B, a dielectric layer 7-12 that covers the display discharge electrode 8 is formed on the glass substrate 1. The thickness of the portion of the dielectric layer 7-12 aligned with the vertical lower end of the display discharge electrode 8 is thinner than the thickness of the other portions. For example, the thickness of the part is about 20 μm, and the thickness of the other part is about 30 μm. The dielectric layer 7-12 having such a shape can be formed by a method such as pattern printing of a glaze layer, use of a photosensitive glaze paste, or pattern etching of a glaze layer.

  In the twelfth embodiment configured as described above, the thickness of the portion covering the display discharge electrode 8 positioned vertically above the dielectric layer 7-12 is positioned vertically downward with respect to one display cell. Since the thickness of the portion covering the display discharge electrode 8 is thinner, and generally the thinner the dielectric layer, the lower the counter discharge start voltage with the data electrode, so that the display discharge electrode 8 starts the counter discharge. The voltage goes down.

  For one display cell, the portion of the dielectric layer covering one display discharge electrode may be thinned as a whole, but the counter discharge characteristics are different between the two display discharge electrodes. Alternatively, only a part of the dielectric layer may be thinned. Further, in the twelfth embodiment shown in FIGS. 5A and 5B, the thin portion of the dielectric layer 7-12 is formed in a dot shape, but the thin film portion is formed in a strip shape extending in the horizontal direction. May be formed. In this case, a higher effect can be obtained if the dielectric layer is thinned particularly at a portion close to the surface discharge gap.

  Further, the characteristic of the dielectric layer is not provided as in the eleventh and twelfth embodiments, but the characteristic of the dielectric layer is provided in one display cell. In addition, it is possible to make a difference in the counter discharge characteristics between the two display discharge electrodes. For example, a difference may be provided between the secondary electron emission coefficient on the surface of the dielectric layer on one display discharge electrode and the secondary electron emission coefficient on the surface of the dielectric layer on the other display discharge electrode. Specifically, a structure in which a magnesium oxide film is formed on one side and a magnesium oxide film is not formed on the other side, or an alumina film or the like having a small secondary electron emission coefficient may be formed.

  Next, thirteenth through nineteenth embodiments of the present invention will be described. In the thirteenth to seventeenth embodiments, the shape of the data electrode on the rear substrate side is different from each other in a region that matches two display discharge electrodes in one display cell. 6A is a schematic plan view showing a data electrode in the thirteenth embodiment, FIG. 6B is a schematic plan view showing a data electrode in the fourteenth embodiment, and FIG. 6C is a diagram in the fifteenth embodiment. FIG. 14D is a schematic plan view showing the data electrode, FIG. 14D is a schematic plan view showing the data electrode in the sixteenth embodiment, and FIG. 9E is a schematic plan view showing the data electrode in the nineteenth embodiment. 7A is a sectional view showing the structure of the sixteenth embodiment, FIG. 7B is a sectional view showing the structure of the seventeenth embodiment, and FIG. 7C is a sectional view showing the structure of the eighteenth embodiment. is there.

  In the thirteenth embodiment, as shown in FIG. 6A, a data electrode 5-13 extending in the vertical direction is provided. The width of the data electrode 5-13 is wider than the other regions in the region aligned with the portion of the display discharge electrode 8 extending vertically downward from the bus electrode 4. For example, the width of the narrow portion of the data electrode 5-13 is 60 μm, and the width of the wide portion is 190 μm.

  In general, as the width of the data electrode overlapping the display discharge electrode is narrower, the counter discharge start voltage is lower. Therefore, in the thirteenth embodiment configured as described above, the display positioned vertically above with respect to one display cell. The counter discharge start voltage with respect to the discharge electrode 8 is lower. If the width of the data electrode 5-13 is as described above, for example, a difference of 20 V is obtained in the counter discharge start voltage.

  In the fourteenth embodiment, as shown in FIG. 6B, data electrodes 5-14 extending in the vertical direction are provided between display cells adjacent in the horizontal direction. That is, the data electrode 5-14 is provided under a vertical partition (not shown). The data electrode 5-14 is provided with a portion that protrudes to a region that matches the portion that extends vertically downward from the bus electrode 4 of the display discharge electrode 8. Therefore, the portion of the display discharge electrode 8 that extends vertically downward from the bus electrode 4 and the data electrode 5-14 overlap with a larger area than the first embodiment in plan view, while the display discharge electrode The portion extending vertically upward from the bus electrode 4 of 8 does not overlap the data electrode 5-14.

  In the fourteenth embodiment configured as described above, the counter discharge between the display discharge electrode 8 extending vertically upward from the bus electrode 4 and the data electrode 5-14 disposed below the vertical barrier rib starts. Since the voltage is extremely high, the difference between the counter discharge start voltage and the counter discharge start voltage between the display discharge electrode 8 and the data electrode 5-14 extending vertically downward from the bus electrode can be increased.

  In the fifteenth embodiment, as shown in FIG. 6C, data electrodes 5-15 meandering between the vertical barrier ribs 6a located on both sides of the display cells forming the column are provided. The data electrode 5-15 crosses below the display discharge electrode 8 extending vertically downward from the bus electrode 4 in each display cell. In the data electrode 5-15, an enormous portion having a wide width is formed in a region crossing the display discharge electrode 8.

  In the fifteenth embodiment configured as described above, as in the fourteenth embodiment shown in FIG. 6B, the display discharge electrode 8 extending vertically upward from the bus electrode 4 is provided therebelow. Since the data electrode 5-15 is narrow and the data electrode 5-15 itself is disposed below the vertical barrier rib 6a, the counter discharge start voltage in this region extends downward from the bus electrode 4. This is extremely higher than the counter discharge start voltage between the display discharge electrode 8 and the region of the data electrode crossing the display discharge electrode 8. It should be noted that the enormous area shown in FIG. 6C is not necessarily required in the region across the display discharge electrode 8 of the data electrode, but it is easier to generate counter discharge if an enormous area having an appropriate area is provided. Can be more effective.

  In the thirteenth to fifteenth embodiments, the planar shape of the data electrode is adjusted. On the other hand, the manufacturing process of the back substrate and the like is complicated, but the part where the discharge start voltage is to be set high. The bus electrode is also provided by a three-dimensional structure such as increasing the distance from the display discharge electrode by arranging the data electrode away from the display discharge electrode from other parts and increasing the dielectric layer of the part. The discharge start voltage between one of the display discharge electrodes and the data electrode can be increased. The sixteenth to eighteenth examples are examples in which such a three-dimensional structure is adopted.

  In the sixteenth embodiment, as shown in FIGS. 6D and 7A, the data electrode 5 provided with a step in the region A extending in the horizontal direction so as to be closer to the front substrate side than the other regions. −16 is formed. Note that the region A is orthogonal to the display discharge electrode 8 positioned vertically upward in each display cell.

  In the sixteenth embodiment configured as described above, since a step is formed in the data electrode 5-16, the display discharge electrode 8 and the data electrode 5-16 which are positioned vertically upward with respect to one display cell. Is narrower than the distance between the display discharge electrode 8 located on the lower side and the data electrode 5-16. Therefore, the counter discharge start voltage between the data electrode 5-16 and the display discharge electrode 8 positioned vertically above is lower.

  In the seventeenth embodiment, as shown in FIG. 7B, a dielectric layer 10-17 having a recess 10-17a is provided in a region A extending in the horizontal direction.

  In the seventeenth embodiment configured as described above, the distance between the display discharge electrode 8 and the data electrode 5 is the same between the vertical upper side and the vertical lower side of the bus electrode 4 for one display cell. As for the dielectric layer 10-17 existing between them, the vertically upper side is thinner. Accordingly, the counter discharge start voltage between the data electrode 5 and the display discharge electrode 8 positioned vertically above is lower.

  In the eighteenth embodiment, as shown in FIG. 7C, the dielectric layer 10-18a is formed in the region A, and the dielectric layer 10-18b is formed in the other regions. The dielectric constant of the dielectric layer 10-18b is higher than that of the dielectric layer 10-18a.

  In the eighteenth embodiment configured as described above, the distance between the display discharge electrode 8 and the data electrode 5 is the same between the vertical upper side and the vertical lower side of the bus electrode 4 for one display cell. Since the dielectric constants of the dielectric layers 10-18a and 10-18b existing between them are different, the counter discharge start voltage between the data electrode 5 and the display discharge electrode 8 positioned vertically above is lower.

  In the thirteenth to eighteenth embodiments, the discharge start voltage between the display discharge electrode and the data electrode on the upper vertical side in the display cell is lowered, but the arrangement is reversed and the discharge start voltage is vertical in the display cell. The discharge start voltage between the lower display discharge electrode and the data electrode may be lowered. Furthermore, the wide portion of the data electrode is a region where the arrangement of the bus electrode on the upper display discharge electrode side and the lower display electrode side is reversed for each column and the discharge start voltage is low for each column. May be reversed. The nineteenth embodiment is an embodiment that employs such an arrangement.

  In the nineteenth embodiment, as shown in FIG. 6E, a data electrode 5-19 is formed in which the vertical direction of the data electrode 5-13 in the thirteenth embodiment is inverted every column. Yes. Also in this case, the same effect as that of the thirteenth embodiment can be obtained by matching the driving method and the video data arrangement in accordance with such an arrangement.

  Regarding one display cell, the shapes of the two display discharge electrodes are different from each other in the sixth to tenth embodiments, and the thicknesses of the dielectric layers are different from each other in the eleventh and twelfth embodiments. In the thirteenth to nineteenth embodiments, the opposing discharge start voltage and discharge intensity between the display discharge electrode and the data electrode are made different from each other in the shape of the data electrode or the like or the characteristics of the dielectric layer. Although a difference is given to the strength of the above, a large difference can be given to the counter discharge start voltage by combining these embodiments. In practice, it is preferable to design the display cell so that the difference in the discharge start voltage is 20 V or more in view of the uniformity of the panel.

  Next, twentieth to twenty-second embodiments of the present invention will be described. In the eighteenth to twentieth embodiments, a gap is formed between the vertical partition and the front substrate. 8A is a sectional view showing a plasma display panel according to the twentieth embodiment, FIG. 8B is a sectional view showing a plasma display panel according to the twenty-first embodiment, and FIG. 8C is a sectional view showing the twenty-second embodiment. It is sectional drawing which shows the plasma display panel which concerns.

  In the twentieth embodiment, as shown in FIG. 8A, a bus electrode 4-20 having a thickness about twice as thick as that in the first to nineteenth embodiments is provided. The bus electrode 4-20 has a thickness of about 10 μm, for example. The bus electrode 4-20 overlaps the horizontal partition 6b in plan view. A dielectric layer 7 covering the bus electrode 4-20 is formed on the glass substrate 2. The thickness of the dielectric layer 7 is, for example, about 25 μm, but there is a step of about 7 μm between the portion that overlaps the bus electrode 4-20 and the portion that does not overlap. For this reason, after being combined with the rear substrate 200, the dielectric layer 7 is in close contact with the horizontal barrier rib 6b at the portion overlapping with the bus electrode 4-20, but since there is a step, the vertical barrier rib 6a and the front substrate 100 are present. There is a gap between them.

  In the twentieth embodiment configured as described above, the exhaust conductance in the manufacturing process is reduced, so that the exhaust time can be shortened and impurities can be reliably removed.

  In the twenty-first embodiment, as shown in FIG. 8B, a band-shaped raised portion 20 is formed on a region of the dielectric layer 7 overlapping the bus electrode 4. The raised portion 20 can be formed by, for example, forming a glaze layer to be the dielectric layer 7, applying a glaze paste again in a band shape by screen printing, drying and firing. The raised portion 20 has a width of 120 μm, for example, and a height of 17 μm, for example. The front substrate 100 is formed with a magnesium oxide thin film (not shown) that covers the raised portion 20.

  In the twenty-first embodiment configured as described above, a wide gap is secured between the front substrate 100 and the vertical partition wall 6 a provided on the rear substrate 200 by the raised portion 20. As a result, the exhaust time is further shortened and the removal of impurities is further ensured.

  The raised portion may be formed before the dielectric layer 7 is formed, and the manufacturing process becomes more complicated, but may be formed before the double-sided discharge electrodes are formed. Further, a transparent material may be used for the raised portion, but a colored material may be used for the purpose of improving the bright place contrast.

  In the twenty-second embodiment, as shown in FIG. 8 (c), the height of the vertical partition walls 6a-22 is about 20 μm lower than the height of the horizontal partition walls 6b-22. Such partition walls 6a-22 and 6b-22 are formed by, for example, forming vertical partition walls and horizontal partition walls having the same height by sand blasting, and then providing a raised portion by screen printing in a strip shape above the horizontal partition walls. be able to. In addition to this method, the partition walls 6a-22 and 6b-22 may be formed using a photosensitive paste or using a mold having a three-dimensional shape.

  Also in the twenty-second embodiment thus configured, the exhaust conductance is reduced.

  In addition, when the partition walls 6a-22 and 6b-22 having such a shape are used, if the phosphor layer is applied by screen printing, the phosphor paste is easily mixed into adjacent display cells. It is preferable to apply the phosphor paste by an inkjet method.

  In addition, the wider the gap between the vertical barrier ribs and the front substrate, the more advantageous for exhaust, but if it is too wide, the suppression of discharge interference becomes insufficient and problems such as erroneous lighting may occur. In addition, the emission luminance is also reduced. Accordingly, the size of the gap is preferably about 5 to 40 μm.

  In the plasma display panels according to the first to twenty-second embodiments, display cells adjacent in the vertical direction are provided by horizontal barrier ribs overlapping in plan view with bus electrodes that commonly connect the substantially central portions of both side discharge electrodes forming a row. Since it is partitioned, the discharge on the display discharge electrode on one side of the bus electrode is prevented from spreading to the display discharge electrode on the other side.

  Further, since the display discharge electrodes are effectively separated between the display cells adjacent in the horizontal direction, even if there is a gap between the upper surface of the vertical barrier ribs and the dielectric layer 7, the display cells adjacent in the horizontal direction. Interference between discharges is prevented. Further, since the display discharge electrodes are effectively separated in this way, there is a driving advantage as described later.

  Hereinafter, a plasma display panel including the above-described plasma display panel and a driving apparatus thereof according to an embodiment of the present invention will be described. FIG. 9 is a schematic plan view showing a plasma display apparatus according to a twenty-third embodiment of the present invention.

  In the twenty-third embodiment, the counter discharge start voltage between one display discharge electrode and the data electrode of both side discharge electrodes and the counter discharge voltage between the other display discharge electrode and the data electrode are different from each other. There is a built-in asymmetric panel. As shown in FIG. 9, the asymmetric panel is a plasma display panel according to the fourteenth embodiment shown in FIG. 6B, for example.

  FIG. 9 illustrates six double-sided discharge electrodes E1 to E6 and six data electrodes D1 to D6 corresponding to the upper left portion of the plasma display panel according to the fourteenth embodiment. Further, the display discharge electrode located on the upper side of the bus electrode from the top row to the nth row is represented as EUn, and the display discharge electrode located on the lower side is represented as EDn. For example, the display discharge electrode located above the both-side discharge electrodes E3 in the third row is represented as EU3, and the display discharge electrode located below is represented as ED3. Note that no display discharge electrode is required above the uppermost electrode E1, and only the display discharge electrode ED1 positioned below is provided. A driving device (not shown) for supplying a voltage to these both-side discharge electrodes and data electrodes is provided.

  In the twenty-third embodiment configured as described above, the light emission display in the first row is performed by light emission based on the surface discharge between the electrode ED1 and the electrode EU2, and the display in the second row is performed with the electrode ED2. The light emission based on the surface discharge between the electrode EU3 and the third row display is performed based on the light emission based on the surface discharge between the electrode ED3 and the electrode EU4.

  FIG. 10 is a timing chart showing a method of driving the 23rd embodiment.

  First, in the writing period, the driving device applies a scan pulse in the vertical direction sequentially from the electrode E1, and applies a data pulse having a polarity opposite to that of the scan pulse to the data electrode D1 in synchronization with the scan pulse in accordance with display data. . At this time, in the present embodiment, as shown in FIG. 9, the display discharge electrode EDn disposed on the lower side of the bus electrode is connected to the data electrode at a lower voltage than the display discharge electrode EUn disposed on the upper side. Since the counter discharge is generated in this case, the write discharge can be generated only at the display discharge electrode EDn by applying an appropriate scan pulse voltage and data pulse voltage.

  For example, when a scan pulse is applied to the electrode E3, a data pulse is applied to, for example, the data electrodes D2, D3, and D5 based on the display data in the third row, and the potentials of the data electrodes D1, D4, and D6 are at the ground potential. In this case, a counter discharge occurs between the display discharge electrode ED3 and the data electrode D2, between the display discharge electrode ED3 and the data electrode D3, and between the display discharge electrode ED3 and the data electrode D5, and the selected display Wall charges are generated in the vicinity of the discharge electrode ED3. At this time, the counter discharge does not occur between the display discharge electrode EU3 and the data electrodes D2, D3, or D5 even though the scanning pulse of the same voltage is applied. Therefore, in these display cells, the display discharge electrode EU3 No wall charge is generated in the vicinity of. Further, since the display discharge electrode ED3 and the display discharge electrode EU3 are partitioned by the horizontal barrier rib 6b, even if a discharge occurs in the display discharge electrode ED3, the discharge does not spread to the display discharge electrode EU3.

  After the addressing is completed, the driving device applies a sustain discharge pulse to each of both side surface discharge electrodes as shown in FIG. The sustain discharge pulse is applied so that an alternating pulse is applied between the adjacent side surface discharge electrodes, and a surface discharge is generated between the display discharge electrode EDn and the display discharge electrode EUn + 1 adjacent to each other with the surface discharge gap interposed therebetween. This sustain discharge also has no influence between the display cells adjacent in the vertical direction because the horizontal barrier rib 6b exists. Similarly, because of the presence of the vertical barrier ribs 6a and the shape in which the display discharge electrodes are separated in the horizontal direction, there is no interference between display cells adjacent in the horizontal direction.

  By repeating such a series of driving for each subfield, full color display can be performed.

  In general, various preparation sequences such as preliminary discharge are employed in order to ensure display. However, it is effective to employ the preparation sequences also in the driving of this embodiment. In the above embodiment, wall charges are generated by the write discharge. However, the wall charges are generated in advance by the preparation sequence, and the wall charges are erased by the write discharge, so that the negative image is written. Even if the writing method is used, the effect of the present invention can be obtained. Furthermore, the drive method shown in FIG. 10 has a scan base pulse. The scan base pulse can reduce the withstand voltage required for the scan driver, and is also effective for expanding the drive margin. Set to

  Next, a twenty-fourth embodiment of the present invention will be described. The twenty-fourth embodiment is a plasma display device that employs a driving method in which the driving margin is further expanded. In the twenty-third embodiment, as described above, equal voltages are applied to both side discharge electrodes adjacent to the upper and lower sides of the side discharge electrodes to which the scan pulse is applied. Then, it is 0 V or a positive or negative scanning base voltage as shown in FIG. On the other hand, in the twenty-fourth embodiment, the voltage of one side discharge electrode adjacent to the side discharge electrode to which the scan pulse is applied is different from the voltage of the other side discharge electrode. . For example, in the panel configuration shown in FIG. 9, the applied voltage to the side discharge electrodes adjacent to the lower side of the surface discharge electrode to which the scan pulse is applied is scanned by the applied voltage to the side discharge electrodes adjacent to the upper side. The voltage difference from the pulse voltage is set to be large.

  When the voltage is supplied in this way, a voltage having a driving waveform of the following three-phase driving may be applied to each electrode by the driving device. FIG. 11 is a timing chart showing a method for driving the twenty-fourth embodiment.

  In this driving method, both side discharge electrodes are divided into a first group of both side discharge electrodes E1, E4, E7, E10,..., A second group of both side discharge electrodes E2, E5, E8, E11,. The discharge electrodes E3, E6, E9, E12,... Are divided into three groups.

  In the period in which the scan pulse is applied to the both side surface discharge electrodes E1, E4, E7, E10,... Of the first group, the voltage Va is applied to the second group, and the voltage Vb is applied to the third group. The When the voltage of the scan pulse is Vw, the voltage difference between the voltage Vw and the voltage Va is larger than the voltage difference between the voltage Vw and the voltage Vb.

  The driving device applies a voltage Vb to both side surface discharge electrodes of the first group during a period in which a scan pulse is applied to the side surface discharge electrodes E2, E5, E8, E11,. A voltage Va is applied to the surface discharge electrode. In the period in which the scan pulse is applied to the second side discharge electrodes E3, E6, E9, E12,... Of the next third group, the voltage Va is applied to the two side discharge electrodes of the first group, and the second group side discharges. A voltage Vb is applied to the electrode.

  In such a three-phase scan, as shown in FIG. 11, the scan pulses are applied in the order of E1, E4,..., E2, E5,..., E3, E6,. Data pulses corresponding to the scanning order are applied. In the plasma display device, display data for one field are all stored as digital data, so that the cost does not increase even if the scanning order is changed in this way.

  For example, the voltage Vw is set to -190V, the voltage Va is set to 0V, the voltage Vb is set to -90V which is the same as the scanning base voltage, and the data pulse voltage is set to 60V. When each voltage value is set in this way, for example, when a -190 V scanning panel is applied to the both-side discharge electrode E4 and a 60 V data pulse is applied to the data electrode, the display discharge electrode ED4 and the data electrode In between, a voltage of 250 V is applied, and a counter discharge is generated between both electrodes. At this time, the voltage on both side surface discharge electrodes E5 is 0V, and the strong surface discharge is caused by the voltage difference of 190V between the display discharge electrode ED4 and the display discharge electrode EU5 almost simultaneously with the counter discharge with the counter discharge as a trigger. Occurs. This discharge realizes a good address state with sufficient wall charge accumulation.

  On the other hand, the voltage of the display discharge electrode EU4 is also -190V due to the application of the scan pulse, but when the counter discharge start voltage is set sufficiently high due to the shape of the data electrode and / or the display discharge electrode, the display is displayed. No counter discharge occurs between the discharge electrode EU4 and the data electrode.

  In addition, when the counter discharge start voltage is not sufficiently high, or when some trouble occurs, a discharge may occur between data discharges. In such a case, the display discharge electrode EU4 is also generated. And the display discharge electrode ED3 has a potential difference of only 100 V. Therefore, even if an illegal counter discharge occurs between the data electrode and the display discharge electrode EU4, a surface discharge triggered by this discharge does not occur. For this reason, only a small amount of wall charges is accumulated and the writing state is not reached. Accordingly, the drive margin can be widened.

  After the writing is completed on the entire panel surface, the driving device applies a sustain discharge pulse to each side discharge electrode, as shown in FIG. The sustain discharge pulse is applied with a phase shift between adjacent discharge electrodes on both side surfaces, and emits light between the adjacent display discharge electrode EDn and the display discharge electrode EUn-1 across the surface discharge gap. Is displayed.

  By repeating such a series of driving for each subfield, full color display can be performed. An appropriate preparation sequence such as preliminary discharge is also effective in this embodiment in order to stabilize and speed up the address operation.

  Further, if such a driving method in the twenty-fourth embodiment is adopted, the driving margin is slightly reduced, but the symmetrical panel as in the first embodiment shown in FIG. 12 can be driven. FIG. 12 is a schematic plan view showing a plasma display device employing a symmetric panel.

  Furthermore, in the twenty-fourth embodiment, the double-sided discharge electrodes are divided into three groups, but they may be divided into more groups. A twenty-fifth embodiment in which both-side discharge electrodes are divided into four groups and four-phase driving is performed will be described. FIG. 13 is a timing chart showing a method for driving the twenty-fifth embodiment.

  In the twenty-fifth embodiment, both side discharge electrodes are divided into a first group of both side discharge electrodes E1, E5, E9,..., A second group of both side discharge electrodes E2, E6, E10,. Are divided into four groups: a third group of electrodes E3, E7, E11,... And a fourth group of double-sided discharge electrodes E4, E8, E12,.

  In the asymmetric panel having the configuration shown in FIG. 9, the driving device applies the voltage Va to the group adjacent to the lower side of the group to which the scan pulse is applied, and applies the voltage Vb to the group adjacent to the upper side. Then, the voltage Va, the voltage Vb, or other appropriate voltage is applied to the remaining groups. For example, the scan pulse is set to -190 V, the voltage Va is set to 0 V, the voltage Vb is set to -90 V, which is the same as the scan base voltage, and the voltages applied to the remaining groups are set to 0 V.

  Also in the twenty-fifth embodiment configured as described above, an alternating sustain pulse is applied between the adjacent discharge electrodes on both sides after the writing is completed, and light emission is displayed.

  In the twenty-fourth embodiment employing three groups of driving, two types of phases are necessary as the phases of the sustain pulses applied to the surface discharge electrodes of the same group. For example, the side discharge electrodes E1 and E4 belonging to the same first group have different sustain pulse phases and need to be connected to separate sustain pulse generation circuits. This complicates the configuration of the sustain pulse generation circuit.

  On the other hand, in the twenty-fifth embodiment adopting four groups of driving, the sustain pulses having the same phase are applied to the both-side discharge electrodes of the same group, so that there is an advantage that the circuit configuration can be simplified.

  Although it can be divided into more groups, there is no particular effect, and a division of up to four groups is sufficient. The driving method in the twenty-fifth embodiment can be applied to a symmetric panel as in the twenty-fourth embodiment.

  Next, a twenty-sixth embodiment of the present invention is described. FIG. 14 is a timing chart showing a method for driving the twenty-sixth embodiment. In the twenty-fourth embodiment, the driving device applies the scan pulse of the voltage Vw in the order of the double-sided discharge electrodes E1, E2, E3,... During the scan period, but the double-sided discharge during the period until the scan pulse is applied. The voltage applied to the electrodes is the voltage Va, and the voltage applied to the both-side discharge electrodes after applying the scan pulse is the voltage Vb. Note that the voltage difference between the voltage Vw and the voltage Va is larger than the voltage difference between the voltage Vw and the voltage Vb.

  In the twenty-sixth embodiment employing such a driving method, the driving device applies the voltage Vb to the side discharge electrode En-1 adjacent to the upper side of the side discharge electrode En applying the scan pulse. Then, a voltage Va is applied to both side discharge electrodes En + 1 adjacent to the lower side. For example, when a scanning pulse is applied to the both-side discharge electrode E3, the voltage Vb is applied to the both-side discharge electrode E2, and the voltage Va is applied to the both-side discharge electrode E4.

  For example, when the scan pulse is set to -190 V, the voltage Va is set to 0 V, and the voltage Vb is set to -90 V, when the scan pulse is applied to the both-side discharge electrodes E3, the display discharge electrode ED3 and the display discharge electrode EU4 There is an applied voltage difference of 190V between them, but there is only an applied voltage difference of 100V between the display discharge electrode EU3 and the display discharge electrode ED2. Accordingly, a counter discharge is generated between the display discharge electrode ED3 and the data electrode, and this is used as a trigger to generate a surface discharge between the display discharge electrode ED3 and the display discharge electrode EU4, thereby realizing a good address state. . On the other hand, even when a counter discharge is generated between the display discharge electrode EU3 and the data electrode, no surface discharge is triggered between the display discharge electrode EU3 and the display discharge electrode ED2. For this reason, the writing state is not achieved.

  After all the writing operations are completed, the drive circuit applies a sustain pulse to each electrode, whereby light emission display is performed. By repeating this operation for each subfield, full color display is performed. In addition, it is the same as that of the above-mentioned Example that operation | movement more reliably is employable by adoption of a preparation sequence. Also in the twenty-sixth embodiment, the asymmetric panel is more preferable in order to secure a drive margin. However, as in the twenty-fourth and twenty-fifth embodiments, a symmetric panel can be used.

  Next, a twenty-seventh embodiment of the present invention is described. The twenty-seventh embodiment is a plasma display device to which interlaced display is applied. FIGS. 15A and 15B are diagrams showing a method of driving the twenty-seventh embodiment. FIG. 15A is a timing chart showing driving waveforms in odd fields, and FIG. 15B is a timing chart showing driving waveforms in even fields.

  In the odd-field display, the driving device applies a scanning pulse every other one from both side discharge electrodes E1. In this manner, while the odd-numbered both-side discharge electrodes are scanned, the voltage of the even-numbered both-side discharge electrodes is fixed to an appropriate voltage Va. For example, the scan pulse voltage Vw is set to -190V, the scan base voltage is set to -90V, and the voltage Va is set to 0V.

  In the twenty-seventh embodiment adopting such a driving method, for example, when a scan pulse is applied to the discharge electrodes E3 on both sides, in the case of the asymmetric panel shown in FIG. A counter discharge is generated between the data electrodes. Then, using this counter discharge as a trigger, a surface discharge is generated between the display discharge electrode ED3 and the display discharge electrode EU4, and a good address state is obtained. On the other hand, since no counter discharge occurs between the display discharge electrode EU3 and the data electrode, the address state is not achieved.

  After the display cells in the odd-numbered rows are thus written, the driving device applies a sustain pulse. As the sustain pulse, an AC pulse is applied between the display discharge electrodes constituting the display cells of the odd-numbered display rows, and the sustain pulses are not effectively applied to the display cells of the even-numbered display rows. The phase of the sustain pulse applied to the surface discharge electrode is set. That is, as shown in FIG. 15 (a), both side discharge electrodes are divided into a first group of both side discharge electrodes E1, E4, E5, E8, E9,... And both side discharge electrodes E2, E3, E6, E7, The sustain pulses are applied to the second group of E10, E11,..., And are in-phase within the group and shifted in phase between the groups. By applying such a sustain pulse, only odd-numbered display cells display light.

  Next, as shown in FIG. 15B, the driving device applies a scan pulse to the even-numbered side-surface discharge electrodes E2, E4,. At this time, the odd-numbered both-side discharge electrodes are at 0V. After the writing is completed, the driving device applies a sustain pulse so that an AC pulse is applied to the display discharge electrodes constituting the display cells of the even-numbered display rows. That is, the double-sided discharge electrodes are divided into two groups, a third group of double-sided discharge electrodes E1, E2, E5, E6,... And a fourth group of double-sided discharge electrodes E3, E4, E7, E8,. The sustain pulse is applied so as to be in-phase within the group and different in phase between the groups. As a result, only the display cells in even-numbered rows emit display light.

  Therefore, although the display of odd lines and the display of even lines are separated, the display is interlaced. However, since the display is repeated at high speed, there is no visual problem. In order to perform full color display, it is necessary to display a plurality of subfields. However, display of odd and even lines may be performed for each subfield, and all subfield displays of odd lines are completed. After that, all the subfields in even lines may be displayed. Moreover, you may carry out by mixing these.

  According to the twenty-seventh embodiment, for example, in normal operation, the address is written only by the display discharge electrode on the lower side of the bus electrode. In this display cell, since the sustain pulses applied to the two display discharge electrodes are in phase with each other, no sustain discharge occurs even when surface discharge occurs and a strong address state is reached. . Therefore, there is no false lighting display.

  For this reason, even if the twenty-seventh embodiment is applied to a symmetrical panel as shown in FIG. 12, erroneous lighting can be prevented. For example, when a scan pulse is applied to the discharge electrodes E3 on both sides in an odd field, not only the data electrode and the display discharge electrode ED3 but also the counter discharge is generated between the data electrode and the display discharge electrode EU3. Since this occurs and a surface discharge electrode triggered by this is also generated, both the display discharge electrode ED3 and the display discharge electrode EU3 are in an address state. However, the sustain discharge occurs between the display discharge electrode ED3 and the display discharge electrode EU4 due to the phase relationship of the sustain pulse, but no sustain discharge occurs between the display discharge electrode EU3 and the display discharge electrode ED2.

  For this reason, even when applied to a symmetric panel, normal display is realized. However, the asymmetric panel is more preferable because there is no unnecessary address discharge and the current supply capability of the scan driver may be low.

  In the twenty-seventh embodiment, the time required for scanning is the same as that of the conventional one, but since sustain light emission is performed separately for odd and even rows, the sustain period increases, but a wide operating margin is obtained. In addition, effects such as the use of symmetric pulses and the dispersion of sustain discharge power can be obtained.

  Next, a twenty-eighth embodiment in which the number of scanning drivers is reduced by utilizing interlaced driving will be described. The twenty-eighth embodiment is applied to the symmetric panel shown in FIG. FIGS. 16A and 16B are diagrams showing a method of driving the twenty-eighth embodiment, wherein FIG. 16A is a timing chart showing driving waveforms in odd fields, and FIG. 16B is a timing chart showing driving waveforms in even fields.

  As shown in FIG. 16A, for example, when the both-side discharge electrodes E2 are scanned, the display discharge electrodes ED2 in the display cells in the second row are displayed in addition to the display discharge electrodes EU2 by the display data in the first row. But writing is done. However, only the odd-numbered display cells emit sustain light by the sustain pulse subsequently applied.

  In the display of the next even field, the driving device applies the scan pulse to the even-numbered side discharge electrodes as in the display of the odd field. However, regarding the timing of the scan pulse and the data pulse, in the display of the odd field, for example, when the scan pulse is applied to the both-side discharge electrode E2, the data pulse is applied to the data electrode based on the display data of the first row. However, in the display of the even field, a data pulse is applied to the data electrode based on the display data of the second row on the both side discharge electrodes E2. Therefore, also in this scanning, both the display discharge electrodes EU2 and ED2 generate a counter discharge between the display discharge electrodes EU2 and ED2 and a surface discharge triggered by the data discharge, resulting in a writing state. However, as shown in FIG. 16B, since the sustain pulse of alternating current is applied only to the display cells in the even-numbered rows, for example, the sustain discharge is generated between the display discharge electrode ED2 and the display discharge electrode EU3. However, no sustain discharge occurs between the display discharge electrode EU2 and the display discharge electrode ED1.

  As a result, in the odd field display, writing to the display discharge electrode above the bus electrode is effective for sustain discharge light emission, and in the even field display, writing to the display discharge electrode below the bus electrode is sustain discharge. Effective for light emission.

  According to such a driving method, it is possible to display the entire surface of the panel only by applying a scanning pulse only to the even-numbered both-side discharge electrodes, thereby reducing the number of scanning drivers by half and reducing the cost. Contribute to. Further, the adoption of the preparation sequence and the combination of the odd field display, the even field display, and the subfield display can be arbitrarily performed as in the twenty-seventh embodiment.

  In this embodiment, the scan driver is connected to the even-numbered side discharge electrodes. However, the scan driver is connected to the odd-numbered surface discharge electrodes by matching the phase relationship of the sustain pulses. May be. However, it is general that the display rows are even rows. In this case, it is more preferable to connect the scan driver to the even rows because one bit can be reduced.

  Next, a description will be given of a twenty-ninth embodiment in which two adjacent display lines are lit and displayed as the same display. The twenty-ninth embodiment is applied to a symmetric panel having double-sided discharge electrodes. FIGS. 17A and 17B are diagrams showing a method of driving the twenty-ninth embodiment, wherein FIG. 17A is a timing chart showing driving waveforms in odd fields, and FIG. 17B is a timing chart showing driving waveforms in even fields.

  In the twenty-ninth embodiment, as shown in FIG. 17A, in the odd field display, the driving device applies a scan pulse to the odd-numbered both-side discharge electrodes. In this embodiment, since a symmetric panel is used, for example, when a data pulse is applied to the data electrode at the timing when the scanning pulse is applied to the both-side discharge electrode E3, both the display discharge electrodes ED3 and EU3 are written. It becomes a state. Then, after scanning the odd-numbered both-side discharge electrodes on the entire panel, as shown in FIG. 17A, the driving device applies an AC sustain pulse between the adjacent both-side discharge electrodes. To do. At this time, since writing is performed on the display discharge electrodes on both sides of the odd-numbered both-side discharge electrodes, the two display rows emit sustain light in the same light emission display state.

  Next, as shown in FIG. 17B, in the even-field display, the driving device applies a scan pulse to the even-numbered both-side discharge electrodes, writes the display discharge electrodes on both sides, and then maintains the scan pulses. Apply a pulse. Since the sustain pulse is applied as an alternating sustain pulse between the adjacent discharge electrodes on both sides, the two display rows emit sustain light in the same light emission display state.

  Since such a display method corresponds to an alternate two-row scanning interlaced display method, the resolution is slightly lowered, but unlike the twenty-third and twenty-fourth embodiments in which the sustain light emission is performed only in half the rows, the sustain is maintained. Since light emission is performed in all the rows of the panel, high luminance light emission is realized.

  Further, since the interlaced light emitting displays overlap each other, for example, even if the same frame as the conventional television is displayed in 1/30 second, flicker and scanning line structure interference are suppressed. In this case, compared with a normal 1/60 second sequential scanning scan, there is a margin in scanning time and sustain light emission time, which can contribute to higher luminance and lower cost.

  Accordingly, in the twenty-ninth embodiment, the compatibility with a television display in which video data is transmitted in an interlaced manner is high. Further, since a high luminance and high resolution display is realized, the alternate two-row scanning type driving method in the twenty-fifth embodiment is adopted for television display, and the driving method is used when displaying on a personal computer or the like. If the driving method is automatically switched to any one of the thirty-sixth embodiments, a clear display with high resolution and no line flicker can be performed.

  Some of the plasma display devices according to these embodiments have a scanning driver (driving device) connected to all the discharge electrodes on both sides, and half of them have a scanning driver connected, and are divided into multiple phases. In either case, it is desirable that the discharge electrode terminals on both side surfaces from the panel are alternately taken to the left and right and connected to the driving device. This is to eliminate the left and right distribution of the sustain emission intensity. Strictly speaking, the external drive circuit that supplies the sustain pulse may be connected alternately from the left and right, but since the sustain pulse is also supplied through the output terminal of the scan driver IC, the scan driver is connected to all the electrodes. Also in the embodiment, it is desirable to alternately take out the left and right, and to connect to the driving device.

  Note that the plasma display panel of the present invention is also effective for a structure in which the data electrodes are separated into upper and lower parts and the panel is divided into two parts, and the display capacity is increased and the data pulse application power is reduced by dual scanning. This is possible in the same manner as a conventional plasma display panel.

  In addition, although the example of the drive waveform of each Example shown in figure is a comparatively simple waveform in order to make explanation easy to understand, in an AC drive plasma display, a relative electric potential is important, and wall charge Therefore, it is possible to design a waveform using an appropriate bias including a preparation sequence. In such a case, it is possible to easily design a waveform different from the waveform described in the illustrated embodiment, but the effect of the present invention can be obtained if it is the same as the gist of the above-described embodiment.

  Further, in the description of each embodiment, there is a description for specifying members such as odd-numbered, even-numbered, upper side, lower side, vertical, horizontal, odd-numbered field and even-numbered field, but these are for easy understanding. It is. That is, these are not strict regulations and are not limited to these. In the case of an asymmetric panel, the driving waveform may be matched to the arrangement of the display discharge electrodes having a low address discharge voltage, so the configuration of the plasma display device is not limited to that shown in FIG. The plasma display panel according to the above can be incorporated.

It is a schematic diagram which shows the structure of the plasma display panel which concerns on the 1st Example of this invention. (A) is a schematic plan view showing the display discharge electrode in the second embodiment of the present invention, (b) is a schematic plan view showing the display discharge electrode in the third embodiment of the present invention, (c) is FIG. 5D is a schematic plan view showing a display discharge electrode in a fourth embodiment of the present invention, and FIG. 6D is a schematic plan view showing a display discharge electrode in a fifth embodiment of the present invention. (A) is a schematic plan view showing the display discharge electrode in the sixth embodiment of the present invention, (b) is a schematic plan view showing the display discharge electrode in the seventh embodiment of the present invention, (c) is Schematic plan view showing the display discharge electrode in the eighth embodiment of the present invention, (d) is a schematic plan view showing the display discharge electrode in the ninth embodiment of the present invention, (e) is a schematic view of the present invention. It is a typical top view which shows the display discharge electrode in 10 Examples. It is a figure which shows the plasma display panel based on the 11th Example of this invention, Comprising: (a) is typical top view, (b) is sectional drawing along the AA of (a). . It is a figure which shows the plasma display panel based on the 12th Example of this invention, Comprising: (a) is typical top view, (b) is sectional drawing along the BB line of (a). . (A) is a schematic plan view showing the data electrode in the thirteenth embodiment of the present invention, (b) is a schematic plan view showing the data electrode in the fourteenth embodiment of the present invention, and (c) is the present invention. Schematic plan view showing data electrodes in the fifteenth embodiment of the present invention, (d) is a schematic plan view showing data electrodes in the sixteenth embodiment of the present invention, and (e) is a nineteenth embodiment of the present invention. It is a typical top view which shows the data electrode in. (A) is sectional drawing which shows the structure of 16th Example, (b) is sectional drawing which shows the structure of 17th Example, (c) is sectional drawing which shows the structure of 18th Example. (A) is sectional drawing which shows the plasma display panel based on the 20th Example of this invention, (b) is sectional drawing which shows the plasma display panel concerning 21st Example of this invention, (c) is this invention. It is sectional drawing which shows the plasma display panel based on the 22nd Example of this. It is a typical top view which shows the plasma display apparatus based on the 23rd Example of this invention. It is a timing chart which shows the method of driving the 23rd Example of this invention. It is a timing chart which shows the method of driving the 24th Example of this invention. It is a typical top view which shows the plasma display apparatus which employ | adopted the symmetrical panel. It is a timing chart which shows the method of driving the 25th Example of this invention. It is a timing chart which shows the method of driving the 26th Example of this invention. It is a figure which shows the method of driving the 27th Example of this invention, Comprising: (a) is a timing chart which shows the drive waveform of odd field, (b) is a timing chart which shows the drive waveform of even field. It is a figure which shows the method of driving the 28th Example of this invention, Comprising: (a) is a timing chart which shows the drive waveform of odd field, (b) is a timing chart which shows the drive waveform of even field. It is a figure which shows the method of driving the 29th Example of this invention, Comprising: (a) is a timing chart which shows the drive waveform of odd field, (b) is a timing chart which shows the drive waveform of even field. It is a schematic diagram showing the structure of a typical reflective AC surface discharge type color plasma display panel. (A) is a schematic diagram showing the positional relationship among scan electrodes, sustain electrodes, and bus electrodes that constitute surface discharge electrodes in a conventional color plasma display panel, and (b) is a diagram between partition walls and data electrodes. It is a schematic diagram which shows a positional relationship. (A) is a schematic diagram showing a positional relationship in the second conventional example among scan electrodes, sustain electrodes, and bus electrodes constituting a surface discharge electrode, and (b) is a second conventional example between a partition wall and a data electrode. It is a schematic diagram which shows the positional relationship in an example. (A) is a schematic diagram showing a positional relationship in a third conventional example among scan electrodes, sustain electrodes, and bus electrodes constituting a surface discharge electrode, and (b) is a third conventional example between a partition wall and a data electrode. It is a schematic diagram which shows the positional relationship in an example. It is a timing chart which shows the drive waveform applied to each electrode by setting Sn as the scanning electrode of the n-th row, and the sustain electrode as Cn.

Explanation of symbols

1, 2; Glass substrate 2a; Projection 3, 3-2, 3-3, 3-4a, 3-6, 3-7, 3-8, 3-9; Transparent electrode film 3-4b; Metal pattern 4 4-20; bus electrodes 5, 5-13, 5-14, 5-15, 5-16, 5-19; data electrodes 6a, 6b, 6a-22, 6b-22; partition walls 7, 7-11, 7-12; Dielectric layer 8, 8-2, 8-3, 8-4, 8-5, 8-6a, 8-6b, 8-7a, 8-7b, 8-8a, 8-8b, 8 -9a, 8-9b, 8-11; Display discharge electrode 10, 10-17, 10-18a, 10-18b; Dielectric layer 10-17a; Depression 20; Raised portion 100; Front substrate 200; Rear substrate 300; Both sides discharge electrode

Claims (10)

A plurality of bus electrodes extending in the row direction and driven independently of each other; a first display discharge electrode extending into a cell adjacent in the first column direction as viewed from the bus electrode; and the bus electrode A second display discharge electrode extending in a cell adjacent to the second column direction opposite to the first column direction as viewed, and a data electrode extending in the column direction, each adjacent in the row direction. The first display discharge electrode and the second display discharge electrode are separated between display cells to be operated, and the width of the first display discharge electrode in the row direction is wider than the width of the second display discharge electrode in the row direction. Or the width in the row direction at the tip of the first display discharge electrode in the first direction is wider than the width in the row direction of the tip of the second display discharge electrode in the second direction. Or by cutting off the tip of the first display discharge electrode in the first direction. By product is wider than the cross-sectional area of the distal end portion of the second direction of the second display discharge electrodes, display discharge start voltage is the second between the data electrode and the first display discharge electrodes A plasma display device characterized by having a voltage lower than a discharge start voltage between a discharge electrode and the data electrode. A plurality of bus electrodes extending in the row direction and driven independently of each other; a first display discharge electrode extending into a cell adjacent in the first column direction as viewed from the bus electrode; and the bus electrode A second display discharge electrode extending in a cell adjacent to the second column direction opposite to the first column direction as viewed, and a data electrode extending in the column direction, and the first display A protrusion having electrical conductivity is formed on the discharge electrode, or the thickness of the dielectric film formed on the first display discharge electrode is set on the second display discharge electrode. The discharge start voltage between the first display discharge electrode and the data electrode causes the discharge between the second display discharge electrode and the data electrode to be smaller than the thickness of the dielectric film formed on the first electrode. A plasma display device characterized by having a voltage lower than a starting voltage. A plurality of bus electrodes extending in the row direction and driven independently of each other; a first display discharge electrode extending into a cell adjacent in the first column direction as viewed from the bus electrode; and the bus electrode A second display discharge electrode extending in a cell adjacent to the second column direction opposite to the first column direction as viewed, and a data electrode extending in the column direction, and the first display The width in the row direction of the data electrode in the portion facing the discharge electrode is narrower than the width in the row direction of the data electrode in the portion facing the second display discharge electrode. A plasma display device, wherein a discharge start voltage between the data electrode and the data electrode is smaller than a discharge start voltage between the second display discharge electrode and the data electrode. A plurality of bus electrodes extending in the row direction and driven independently of each other; a first display discharge electrode extending into a cell adjacent in the first column direction as viewed from the bus electrode; and the bus electrode A second display discharge electrode extending into a cell adjacent to the second column direction opposite to the first column direction as viewed, and a data electrode extending in the column direction, and the data electrode A portion facing the second display discharge electrode is arranged in a row direction away from the center of the cell, and a portion of the data electrode facing the first display discharge electrode is overlapped with the center of the cell. Or the distance between the portion of the data electrode facing the first display discharge electrode and the first display discharge electrode is set to the second display discharge electrode of the data electrode. the distance between the between opposed portions the second display discharge electrodes The shorter Ri, that discharge start voltage between the data electrode and the first display discharge electrodes is a smaller than the firing voltage between the data electrode and the second display discharge electrodes A plasma display device. A plurality of bus electrodes extending in the row direction and driven independently of each other; a first display discharge electrode extending into a cell adjacent in the first column direction as viewed from the bus electrode; and the bus electrode A second display discharge electrode extending in a cell adjacent to the second column direction opposite to the first column direction as viewed, and a data electrode extending in the column direction, and the first display The thickness of the dielectric layer existing between a portion of the discharge electrode and a portion of the data electrode facing the portion of the first display discharge electrode is determined by the thickness of the portion of the second display discharge electrode and the portion of the data electrode. By making the thickness less than the thickness of the dielectric layer existing between the portion facing the portion of the second display discharge electrode, or the portion of the first display discharge electrode and the first of the data electrode Dielectric layer existing between a portion facing a part of the display discharge electrode Dielectric constant, by greater than the dielectric constant of the dielectric layer existing between the said portion facing portion of the second display discharge electrodes of the second display discharge electrodes portion and the data electrodes, the A plasma display device characterized in that a discharge start voltage between the first display discharge electrode and the data electrode is smaller than a discharge start voltage between the second display discharge electrode and the data electrode. . A plurality of bus electrodes extending in the row direction and driven independently of each other; a first display discharge electrode extending into a cell adjacent in the first column direction as viewed from the bus electrode; and the bus electrode A second display discharge electrode extending in a cell adjacent to the second column direction opposite to the first column direction as viewed, and a data electrode extending in the column direction, and the first display the larger that the secondary electron emission coefficient of the surface of the dielectric layer coefficient of secondary electron emission covers the second display discharge electrodes of the surface of the dielectric layer covering the discharge electrodes, the said first display discharge electrodes A plasma display device, wherein a discharge start voltage between the data electrode and the data electrode is smaller than a discharge start voltage between the second display discharge electrode and the data electrode. First and second substrates disposed opposite to each other, a plurality of bus electrodes disposed on the first substrate and extending in the row direction and driven independently from each other, and first as viewed from the bus electrodes A first display discharge electrode extending into a cell adjacent in the column direction, and a second display electrode extending into a cell adjacent to the second column direction opposite to the first column direction when viewed from the bus electrode. Two display discharge electrodes and a data electrode arranged on the second substrate and extending in the column direction, and the first display discharge electrode and the second display between display cells adjacent in the row direction, respectively. The discharge electrodes are separated, and the width of the first display discharge electrode in the row direction is wider than the width of the second display discharge electrode in the row direction, or the first direction of the first display discharge electrode. The width in the row direction at the front end of the second display discharge electrode is the front end in the second direction. The cross-sectional area of the front end portion in the first direction of the first display discharge electrode is larger than the width in the row direction, or the cross-sectional area of the front end portion in the second direction of the second display discharge electrode. by broader, that discharge start voltage between the data electrode and the first display discharge electrodes is a smaller than the firing voltage between the data electrode and the second display discharge electrodes A plasma display device. 8. The plasma display device according to claim 1, wherein the first and second display discharge electrodes are separated from each other in the row direction by partition walls extending in the column direction. 9. A scan pulse voltage that generates a counter discharge between the first display discharge electrode and the data electrode according to display data and does not generate a counter discharge between the second display discharge electrode and the data electrode. And a data pulse voltage are applied to the bus electrode and the data electrode, respectively, and display data is written independently to the cells on the entire surface of the panel, and then an AC pulse is applied to the first and second display discharge electrodes of each cell. the plasma display device according to any one of claims 1 to 8, characterized in that. The counter discharge generated between the first display discharge electrode and the data electrode does not spread to the second display discharge electrode connected to the first display discharge electrode via the bus electrode. The plasma display device according to claim 9.

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