WO2005043576A1 - プラズマディスプレイパネル - Google Patents
プラズマディスプレイパネル Download PDFInfo
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- WO2005043576A1 WO2005043576A1 PCT/JP2004/016023 JP2004016023W WO2005043576A1 WO 2005043576 A1 WO2005043576 A1 WO 2005043576A1 JP 2004016023 W JP2004016023 W JP 2004016023W WO 2005043576 A1 WO2005043576 A1 WO 2005043576A1
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- discharge
- display panel
- plasma display
- panel according
- electrodes
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/22—Electrodes, e.g. special shape, material or configuration
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/22—Electrodes, e.g. special shape, material or configuration
- H01J11/24—Sustain electrodes or scan electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/10—AC-PDPs with at least one main electrode being out of contact with the plasma
- H01J11/12—AC-PDPs with at least one main electrode being out of contact with the plasma with main electrodes provided on both sides of the discharge space
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/34—Vessels, containers or parts thereof, e.g. substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
- H01J2211/20—Constructional details
- H01J2211/22—Electrodes
- H01J2211/24—Sustain electrodes or scan electrodes
- H01J2211/245—Shape, e.g. cross section or pattern
Definitions
- the present invention relates to a plasma display panel used as an information display device or a flat panel television device.
- a plasma display panel (hereinafter, referred to as "PDP"), which is a type of gas discharge panel, is a self-luminous FPD (flat display panel) that excites and emits a phosphor by ultraviolet light generated by gas discharge to display an image. It is. PDPs are classified into alternating current (AC) and direct current (DC) types according to the type of drive power. The AC type is superior to the DC type in characteristics such as brightness, luminous efficiency, and life. Among the AC types, the reflective surface discharge type is particularly distinguished in terms of luminance and light emission efficiency, and is widely used as a computer display, a large television monitor, a business display device, and the like.
- FIG. 15 is a partial cross-sectional perspective view showing a main configuration of a general AC PDP.
- the xy plane in the thickness direction of the z-direction force PDP corresponds to a plane parallel to the panel surface of the PDP.
- the PDP 1 mainly includes a front panel FP and a back panel BP arranged with their main surfaces facing each other.
- the front panel glass 2 which is the substrate of the front panel FP, has a pair of two display electrodes 4, 5 (scan electrode 4, sustain electrode 5) formed in pairs on one main surface along one direction. Surface discharge (sustain discharge) is performed using the main discharge gap between the display electrodes 4 and 5 of each pair.
- the display electrodes 4 and 5 shown in FIG. 15 include wide strip-shaped transparent electrodes 400 and 500 made of ITO (Indium Tin Oxide) material, and a bus line 401 that also has a metal material laminated on each of the transparent electrodes 400 and 500. It consists of 501 and.
- Each scan electrode 4 is electrically and independently supplied with power.
- Each of the sustain electrodes 5 is electrically connected to the same potential and supplied with power.
- a dielectric layer 6 also having an insulating material force and a protective layer 7 also having an oxidizing magnesium force are provided so as to cover the display electrodes 4 and 5.
- a dielectric layer 6 also having an insulating material force and a protective layer 7 also having an oxidizing magnesium force are provided so as to cover the display electrodes 4 and 5.
- a plurality of address (data) electrodes 11 are arranged on the back panel glass 3 serving as a substrate of the knock panel BP on one main surface thereof in a stripe shape with the y direction as a longitudinal direction.
- the address electrode 11 is formed, for example, by firing a mixed material of Ag and glass.
- the main surface of the back panel glass 3 on which the address electrodes 11 are provided is coated with a dielectric layer 10 made of an insulating material so as to cover the address electrodes 11.
- a partition 30 is arranged along the y direction so as to correspond to a gap between two adjacent address electrodes 11. Then, on each side wall of two adjacent partition walls 30 and the surface of the dielectric layer 10 between them, any one of red (R), green (G), and blue (B) having an arc-shaped cross-sectional shape is formed.
- the corresponding phosphor layers 9R, 9G, 9B are formed.
- the above-described pair of front panel FP and back panel BP are arranged to face each other so that the longitudinal directions of the address electrode 11 and the display electrodes 4 and 5 are orthogonal to each other.
- the front panel FP and the back panel BP are sealed at their peripheral edges with sealing members such as frit glass, and the inside of the opposing main surfaces of both panels FP and BP is sealed.
- a Ne-Xe-based discharge gas (Xe is contained at a rate of 5% to 30%) at a predetermined pressure (for example, 40 kPa-66.5) is used. (approximately kPa).
- each space partitioned by the dielectric layer 6, the phosphor layers 9R, 9G, 9B, and two adjacent partitions 30 is a discharge space 38.
- a region where a pair of adjacent display electrodes 4 and 5 and one address electrode 11 intersect with the discharge space 38 interposed therebetween corresponds to the discharge cell 8 (see FIG. 1) which is useful for image display.
- address discharge is started between the address electrode 11 and one of the display electrodes 4 and 5 in the designated discharge cell 8, and the short-wavelength ultraviolet light is generated by the sustain discharge between the pair of display electrodes 4 and 5.
- Xe resonance line wavelength of about 147
- the phosphor layers 9R, 9G, and 9B that have received the ultraviolet rays emit visible light to display an image.
- a field gradation display method is used as an image display method, and one image is displayed in gradation by selecting a plurality of periods (sub-fields) having different numbers of discharges according to gradation. .
- Such a PDP is a thin and excellent display quality of moving images. Compared to a thin display such as a liquid crystal display, the power consumption and the peak current at the time of light emission are larger and more characteristic, and it is an issue to control them.
- Japanese Patent Application Laid-Open No. 8-315735 discloses a method in which the display electrode is arranged along its longitudinal direction. There has been proposed a method of dividing a peak current into a plurality by dividing the peak current into a plurality. Further, as a method for preventing erroneous discharge, for example, in JP-A-2000-133149 (the fourth page and FIG. 7), a discharge electrode is formed by forming two pairs of electrode sections on a display electrode in a discharge cell. A method of providing an electric field concentration region at the center of a cell has been proposed.
- Patent document 1 JP-A-8-315735
- Patent Document 2 JP-A-2000-133149
- the method of dividing the display electrode in the longitudinal direction as disclosed in Japanese Patent Application Laid-Open No. 8-315735 has a problem that the discharge starting voltage increases instead of dividing the discharge current peak.
- An increase in the discharge starting voltage is not desirable because it increases the power consumption and also requires an increase in the withstand voltage of the driving driver IC that applies a voltage to the display electrode, thereby increasing the cost.
- the present invention has been made in view of the above problems, and, as a first object, to provide a PDP having excellent luminous efficiency while suppressing a discharge starting voltage and reducing power consumption.
- a PDP capable of realizing good image table performance by suppressing a decrease in luminance while reducing reactive power.
- the third purpose is to provide a PDP with less erroneous discharge such as crosstalk.
- the present invention provides a method in which a plurality of pairs of display electrodes extending in a row direction are arranged in a column direction on one surface of a first substrate, and each display electrode is partitioned in a row direction.
- a plasma display panel having a configuration in which a plurality of discharge cells are arranged, wherein each display electrode is electrically connected to a bus line and the nosline, and is arranged in a row direction at a position near a gap between a pair of display electrodes.
- a band-shaped electrode body extending and disposed, wherein the band-shaped electrode body includes a pair of display electrodes, each of which has a width-direction end force facing each other, and extends from the width-direction end to the bus line.
- a notch with a length shorter than the distance was formed.
- the bus line is made of a metal material
- the strip-shaped electrode body is made of a transparent electrode.
- a peak of the electric field intensity is formed in a plurality of strip-shaped electrode body regions existing on both sides of the cut, and this portion is formed. Discharge occurs. Since the electric field is concentrated at this peak position, it is possible to start the discharge well even if the discharge starting voltage is relatively low.
- good image display can be performed while reducing power consumption. It is also possible to obtain the luminance required for obtaining performance.
- the shape of the cut may be any one of a strip shape, a wedge shape, a polygonal shape, and a circular shape, which may be appropriately designed.
- the first substrate is disposed to face a second substrate having a plurality of address electrodes arranged in a stripe shape across a discharge space, and in each discharge cell region, the cuts provided in the pair of display electrodes are mutually separated. It is also possible to adopt a configuration in which the first substrate and the second substrate are disposed so as to be opposed to each other, and are arranged so as to match the positions of the address electrodes in the discharge cells.
- the area (effective discharge) of the address electrode and the display electrode sandwiching the discharge space at the intersection of the discharge start position is effective.
- (Area) is ensured to a certain extent, which facilitates the generation of address discharge, and is preferable because it is possible to suppress writing defects and discharge delay.
- a first dielectric layer and a protective layer are sequentially laminated on the first substrate so as to cover the display electrodes. In each discharge cell region, the protective layer has a peak of electric field intensity generated during driving. It is also possible to laminate a second dielectric layer for dividing the second dielectric layer into a plurality.
- the second dielectric layer As described above, by using the second dielectric layer together, it is possible to more reliably form a plurality of electric field strength peaks and obtain a discharge of a good scale.
- a plurality of pairs of display electrodes extending in the row direction are arranged in the column direction on one surface of the first substrate, and each display electrode is partitioned in the row direction to form a plurality of discharge cells.
- PDP having a configuration in which the display electrodes are arranged in each discharge cell area, and are electrically connected to the bus line and the strip base extending in the row direction from the strip base. It is also possible to provide a configuration in which a plurality of opposing portions are provided in the gap between the display electrodes, and a peak of the electric field intensity is formed at the opposing portion of each display electrode.
- the bus line may be made of a metal material, and the band-shaped base portion or the opposing portion may be made of a transparent electrode material.
- the facing portion includes a connection portion extending in the column direction and a discharge portion extending in the row direction from the connection portion, and a discharge gap is formed in a discharge portion gap facing the pair of display electrodes. It is said that it will be done.
- the discharge section may have a row direction as a longitudinal direction.
- the first substrate is disposed so as to face a second substrate having a plurality of address electrodes arranged in a stripe shape, and in each discharge cell region, facing portions provided on a pair of display electrodes face each other.
- the first substrate and the second substrate are disposed so as to be located at the same position and have the same polarity and the gap between the opposing portions adjacent to each other so as to match the position of the address electrode in the discharge cell. You can also.
- each opposing portion is arranged such that the address electrodes are arranged in line symmetry.
- the main feature of the PDP of the present invention is the configuration around the discharge cell shown in FIGS. 1 to 4 below, and the other features are almost the same as the PDP 1 of the conventional configuration in FIG. 15 described above.
- Form 1
- the first embodiment relates to a PDP capable of reducing reactive power and lowering a discharge starting voltage.
- FIG. 1 is a plan view showing a configuration around a discharge cell according to the first embodiment.
- a pair of display electrodes 4 and 5 are composed of bus lines 401 and 501 made of silver material extending in the X direction, and a pair of display electrodes are also extended in the X direction. It is composed of strip-shaped bases 402 and 502 which are arranged close to gaps 4 and 5 and which also have a material force of the transparent electrode, and opposed portions 406a, 406b, 506a and 506b.
- each of the opposing portions 406a, 406b, 506a, and 506b is a plurality (here, a total of four in the discharge cell 8) of two main discharge portions disposed so as to oppose each other so as to form the main discharge gap G.
- Connections 407a, 407b, 507a, and 507b connect the 408a, 408b, 508a, and 508b with the strip-shaped bases 402 and 502 and the strip-shaped main discharge portions 408a, 408b, 508a, and 508b, respectively.
- the facing portions 406a, 406b, 506a, and 506b are configured such that the main discharge portions 408a, ⁇ and the connection portions 407a, ⁇ ⁇ ⁇ are connected as a whole in an L-shaped hook shape, and The extended address electrodes 11 are arranged in line symmetry, and the main discharge portions 408a, 408b (508a, 508b) of the same polarity are separated from each other so as to form a gap GG.
- the gap force S of the main discharge portions 408a, 408b (508a, 508b) of the same polarity is 409 (509). As shown in FIG.
- the cuts 409 (509) are formed in the gaps between the pair of display electrodes 4 and 5, and the noslines 401, which are the y-direction end forces of the main discharges 408a and 408b (508a and 508b) facing each other, It is necessary to form the length so as not to reach the noslines 401 and 501 in response to the force 501.
- the gap GG is a set value smaller than the width of the address electrode 11 and the gap GG is located directly above the address electrode 11 so that the address electrode 11 is viewed from directly above as shown in FIG. Do not protrude, so arranged! RU
- the band bases 402 and 502 and the opposing portions 406a, 406b, 506a and 506b are integrally formed of a transparent electrode material such as ITO in this figure, and form a band electrode body over the entire panel.
- the gap GG is 60 ⁇ m
- the width of the main discharge portions 408a, 408b, 508a, 508b in the x direction is 130 ⁇ m
- the width of the connection portions 407a, 407b, 507a, 507b in the x direction is 65 ⁇ m.
- the width of the main discharge gap G can be set to 40 ⁇ m, but the effect of the present invention is not limited to this value.
- the sizes and shapes of the appropriate cuts 409 and 509 will be described later together with the data of the embodiment.
- the partition wall 30 has a double-girder partition wall composed of a column portion 301 and a row portion 302 (auxiliary partition). This is to prevent crosstalk. Conventional and A similar stripe-shaped partition wall.
- U-Kotopama the noslines 401 and 501 are made of a silver material, and the main discharges 408a, 408b, 508a, and 508b are connected.
- 407a, 407b, 507a, and 507b are made of transparent electrode material such as ITO.
- ITO transparent electrode material
- the extension along the row portion 301 of the partition wall 30 is not a component for enhancing color reproducibility, and therefore, it can be freely provided or not.
- the gap GG is smaller than the width of the address electrode 11 and is disposed immediately above the address electrode 11, the main discharge 408a, Discharge start position force at 408b, 508a, 508b ⁇ approaching address electrode 11. For this reason, at the time of driving, the occurrence of address discharge is facilitated, and the effect of suppressing writing defects and discharge delay is exerted. That is, if there is a large cut at the intersection between the address electrode and the display electrode (especially the scan electrode 4) across the discharge space 38, the area exerted by the intersection decreases extremely (that is, the effective discharge area decreases). ), Force that causes address discharge to be unstable In the first embodiment, as described above, the area (effective discharge area) acting on the intersection is secured to some extent, so that such a problem of the address discharge is solved. I'm like
- cuts 409 and 509 are formed by the hook-shaped patterning, and compared to the conventional transparent electrodes 400 and 500 having a uniform band shape (see FIG. 15). Since the area of the resistive film is suppressed to a small value, the accumulation of extra charge that does not contribute to the discharge in the transparent electrode material is reduced. Therefore, the effect of suppressing the generation of so-called reactive power, which does not contribute to the discharge during the sustain discharge during driving, is exhibited. Meanwhile, the notch
- the charge accumulation amount is ensured in the belt-shaped base portions 402 and 502. For this reason, it is possible to secure a necessary amount of luminance, and excellent image display performance is exhibited.
- the main discharge portions 408a, 408b, 508a, and 508b are located near the wall 30 with the address electrode 11 interposed therebetween, so that these main discharge portions 408a, 408b, 508a, and 508b
- the generated discharge can be brought close to the phosphor layers 9R, 9G, and 9B having an arc-shaped cross section (see FIG. 15). Therefore, the ultraviolet light for discharge effectively reaches the phosphor layers 9R, 9G, and 9B, and the luminous efficiency can be improved.
- the row portion 302 of the partition wall 30 is provided between adjacent cells in the y direction, so that the discharge generated in one discharge cell 8 is prevented from spreading to the adjacent cells. Erroneous discharge such as crosstalk is effectively suppressed.
- FIG. 2 is a diagram showing a configuration around a discharge cell according to the second embodiment.
- the overall configuration of the second embodiment is almost the same as that of the first embodiment, but differs from the first embodiment in that, in the dielectric layer 6 of the front panel FP, the position corresponding to the address electrode 11 of the back panel BP,
- the display electrodes 4 and 5 are formed so as to have a relatively large film thickness (protruding approximately 10 m from the entire surface) in accordance with the gap between the adjacent facing portions 406a, 406b, 506a and 506b.
- the thickness of the film is relatively thin (at a position substantially corresponding to the position of the main discharge gap G) corresponding to the pair of main discharge portions 408a, 408b, 508a, and 508b.
- a thin layer region A formed as a concave part having a depression of 5 ⁇ m) is provided.
- Both the thin layer region A and the thick layer region B can be formed by a photolithography method using a photosensitive dielectric sheet, a printing method, or the like.
- the conventional configuration effectively reduces the discharge starting voltage.
- the thickness difference (recess depth) of the dielectric layer must be about 15 to 20 m. It is important.
- the purpose is to modulate the potential distribution in the discharge cell to generate a plurality of electric field peaks, and it is not necessary to directly reduce the firing voltage as in the related art.
- the effect of the present invention is achieved even with a shallow concave portion of about 5 m or less, and the problem that the discharge is confined in the concave portion does not occur.
- the intensity of the electric field generated in the discharge space 38 of the PDP is determined by the amount of wall charges accumulated on the display electrodes 4 and 5, and the second embodiment utilizes this characteristic to achieve the following effects.
- the aim was to acquire them.
- the main discharge gap G is 70 m here.
- the capacitance formed between the display electrodes 4 and 5 is partially reduced by securing the thickness of the dielectric layer 6 in the thick layer region B during driving.
- the amount of accumulated wall charges can be reduced.
- the electric field intensity peak is distributed to two places on both sides of the thick layer region B where the accumulation amount of the wall charge is small, so that the discharge at two places corresponds to each peak position. A starting position will be formed.
- the amount of accumulated wall charges is abundant, as opposed to the thick layer region B, and discharge is easy to generate. For this reason, in the region corresponding to the thin layer region A, it is possible to perform the discharge even when the discharge start voltage is relatively low.
- a good discharge can be generated in the thin region A even at a low firing voltage.
- a sustain discharge of a good scale can be performed.
- the partition wall 30 has a grid-shaped partition wall. It is good also as a partition of a shape.
- the display electrodes 4 and 5 according to the first embodiment are not limited to the shape shown in FIG. 2, and may have corners at opposing strip-shaped main discharge portions 408 a, such as a variation 1 shown in FIG. 3, for example.
- a bevel portion r may be formed by removing the IJ. If the corners of the main discharge portions 408a are sharp, electric charges may be concentrated too much on the corners of the main discharge portions 408a,, during driving, and erroneous discharge may occur. By providing the bell portion r, the electric charge is diffused to some extent, and this problem can be effectively prevented.
- a part of the main discharge portions 408a,... Is located right above the partition 30.
- the width of the discharge cell 8 in the X direction can be sufficiently increased. This is desirable because it makes effective use of the main discharge portion 408a, and is formed widely.
- the effects of the present invention include an effect of reducing a discharge starting voltage.
- the main discharge portions 408a,... May overlap the partition 30, so that the misalignment between the front panel FP and the back panel BP is allowed to some extent, and the effect of improving the yield is also achieved.
- FIG. 4 shows a configuration around discharge cell 8 of PDP 1 in the third embodiment.
- the PDP 1 according to the third embodiment has band-shaped extending portions 412a and 512a disposed along the partition 30 from the force band-shaped bases 402 and 502, which are basically the same as the second embodiment. Further, each of the extending portions 412a, 512a receives an L-shaped hook-shaped opposing force 416a, 416b, 516a, 516b so as to protrude into the discharge cell 8, respectively.
- the main discharge gap G exists between the facing portions 416a and 516b and between the facing portions 516a and 416b. That is, in the third embodiment, in the discharge cell 8, there are two main discharge gaps G in the y direction.
- the entire shape pattern of the display electrodes 4 and 5 is formed symmetrically in the discharge cells 8 adjacent to each other in the X direction with the partition wall 30 being line symmetric.
- the thin layer region A of the dielectric layer 6 described in the second embodiment is formed at a position corresponding to the main discharge gap G (two positions in the discharge cell 8).
- the provision of the band-shaped base portions 402 and 502 having the power of the transparent electrode material can secure the charge accumulation amount required for the luminance emission!
- the PDP 1 of the third embodiment having the display electrodes 4 and 5 having the above-described configuration also has the same effect as that of the second embodiment as described below. That is, when power is externally supplied to each of the electrodes 4, 5, and 11 during driving, first, an address discharge is generated between the address electrode 11 and the display electrode (scan electrode) 4 in an arbitrary discharge cell 8. Subsequently, at the beginning of the discharge sustaining period, when a pulse is applied to the display electrodes 4 and 5 in the arbitrary discharge cell 8, the facing portions 416a and 516b which are the shortest distances between the display electrodes 4 and 5 are provided.
- the configuration example in which the opposing portions 416a, 416b, 516a, 516b and the thin layer region A are combined is shown, but the thin layer region A of the dielectric layer is not necessarily provided.
- the number of facing portions provided in the extending portion is not limited to the configuration in FIG. 4 and may be changed as appropriate.
- FIG. 5 is a diagram showing a structure around a display electrode according to the fourth embodiment.
- the feature of the fourth embodiment is that in the band-shaped bases 410 and 510 where the material strength of the transparent electrode is also provided, the notches 411a, 411b, and 411a, 411b, which have a smaller width in the y-direction than the transparent electrode, are formed in the opposing portions in the discharge cell 8 region. That is, three 411c, 511a, 511b, and 511c are provided, and both cuts J of the cut are opposed to # 406a, 406b, 506a, 506b,.
- the width GG of the cuts 411a and 51 la is set to be smaller than the width of the address electrode 11, and the cuts 411a and 51 la are arranged so as to be located directly above the address electrode 11.
- 411b, 411c, 511b, and 51 Id are located at positions near the partition 30 of the discharge sensor 8, so that the opposing portions 406a, 406b, 506a, and 506b are widely dispersed within the cell. I have.
- each of the opposing gaps 406a, 406b, 506a, and 506b which are paired on both sides of each of 411a and 511a, respectively Since an intensity peak is formed and discharge occurs, almost the same effects as in the first and second embodiments can be obtained. Further, in the fourth embodiment, since the electrode pattern is relatively simple, an effect such that the process relating to the pattern jung becomes easier can be expected.
- FIG. 6 shows the configuration of the variation (variation 2) of the fourth embodiment.
- an address electrode 11 is arranged separately in two parallel branches l la and l ib.
- opposed portions 406a, 406b, 506a, and 506b are provided corresponding to the branch portions l la and l ib.
- the address electrode 11 can be arranged near each discharge start position in the cell, it is possible to expect higher effects in improving the reliability of the address discharge and preventing the discharge delay. Desired,.
- the cuts 411b, 411c, 511b, and 511c are not indispensable. Of these, a force for providing at least one force, such as the noration 3 shown in FIG. 7, these cuts 411b, 411c, 511b , 511c may not be provided.
- Fig. 8 to Fig. 10 show the data obtained by actually producing a PDP having the configuration of Nomination 3 and performing a performance measurement experiment by changing the design values and the like of the display electrode pattern.
- FIG. 8 is a diagram showing a state of an electric potential distribution in a discharge cell which changes according to a width of a cut provided in a transparent electrode. Here, the state in the region including both sides of the cut center is shown.
- the potential distribution shows a uniform and broad single peak, but the cuts are provided and the depth of the cuts is large.
- the height is increased to 20 m, 40 m, 60 ⁇ m, and 100 ⁇ m (dotted line, thin line, and solid line)
- a sharp peak is generated in each of the transparent electrode regions (opposite portions) on both sides of the cut.
- a plurality of potential peaks are gradually formed in the discharge cells 8.
- FIG. 9 is data showing the relationship between the width of the cut and the reactive current with respect to the cut length (depth of the piece) when the cut is formed in the strip shape shown in FIG.
- the correlation between the cut and the reactive power is simply shown without considering the change in the brightness of the discharge cell 8.
- the effect of reducing the reactive power also increases.
- the effect of reducing the power becomes saturated.
- the cut depth is increased, the area of the transparent electrode is correspondingly reduced.
- Figure 10 shows data indicating this.
- the data shows the relationship between the cut width and the cut length (depth of the cut) of the cut and the reactive current after performing the brightness correction to secure the brightness required for the discharge by adjusting the input power.
- the luminous efficiency of the entire PDP is calculated as the value obtained by dividing the luminance value of the entire panel by the sum of reactive power and discharge power.
- the width of the strip-shaped cut is set to a range of 60 ⁇ m or more and 120 ⁇ m or less
- the depth of the cut for appropriately obtaining the effects of the present invention is obtained. Is found to be in the range from 10 m to 40 ⁇ m.
- a PDP having the display electrodes 4 and 5 consisting of a strip-shaped ITO film (width 100 m) and a strip-shaped bus line (width 90 ⁇ m) (the configuration shown in FIG. 15) is used.
- the overall efficiency of the PDP when driving the same as before is the range where the reactive power ratio is about 1.0 or less, that is, However, it is considered effective if the cutting depth is less than 20 m.
- FIG. 8-10 shows the measurement results of only some numerical values when the cut width is 120 m or less.
- the above considerations are not limited to these measured values, and the analogy can be applied. It seems possible.
- the strip shape in Embodiment 4 in addition to the shape existing between the hook-shaped opposing portions in Embodiments 1-3 (see FIG. 1), the strip shape in Embodiment 4, etc., a circular shape, a conical shape,
- the shape can be changed as appropriate, such as a polygonal shape or a wedge shape.
- the fifth embodiment is characterized in that a second dielectric layer is provided on a protective layer.
- FIG. 11 and FIG. 12 are a top view and an AA ′ cross-sectional view of a PDP according to the fifth embodiment, respectively.
- FIG. 12 for convenience, the front panel FP and the back panel BP are shown separately, but, of course, they are actually in close contact with each other.
- a pair of display electrodes 4 and 5 are connected to a bus line 401, as shown in FIG.
- the display device includes a display electrode 501 and strip-shaped transparent electrodes 400 and 500 arranged near the gap between the pair of display electrodes 4 and 5 from the bus lines 401 and 501.
- the main discharge gap G is set to 60 m here.
- the address electrode 11 is branched in the discharge cell 8 region and two branch portions 112a and 112b are provided.
- the forces 112a and 112b are used for reliably performing discharge and for reliably forming wall charges. The following effects can be obtained without using these forces.
- a dielectric layer 6 and a protective layer 7 made of an oxide magnesium (MgO) film are sequentially laminated so as to cover the front panel glass 2.
- a second dielectric layer 70 is formed on the protective layer 7 along the y direction so as to pass through the center of the discharge cell 8. .
- the second dielectric layer 70 is provided for the purpose of suppressing the capacitance formed between the display electrodes 4 and 5 and the discharge space 38 in the region where the second dielectric layer 70 is provided, and reducing the amount of accumulated wall charges.
- the main body 701 is made of a material such as dielectric layer glass, alumina, and silicon oxide and has a thickness of 40 ⁇ m and a width of 65 ⁇ m, and a stretched portion 702 stretched so as to overlap the black matrix BM. Have been.
- the thickness of the second dielectric layer 70 is not limited to the above value, but it is preferable that the second dielectric layer 70 has a certain thickness so that the capacitance formed between the display electrodes 4 and 5 and the discharge space 38 is increased. It is desirable because it can suppress
- the PDP according to the fifth embodiment having the above configuration also provides substantially the same effects as the first embodiment. That is, when power is supplied to the display electrodes 4 and 5 at the time of driving, wall charges are accumulated in the discharge cells 8 and discharge occurs. Here, the discharge is generated by an electric field formed by the accumulated wall charges.
- the discharge is generated by an electric field formed by the accumulated wall charges.
- the intensity of the electric field generated in the discharge space 38 shows an electric field intensity distribution (potential distribution) having peaks at two places divided by the second dielectric layer 70 in the discharge cell 8, and Discharge occurs even at the discharge starting voltage, which is low corresponding to the two electric field strength peaks.
- the effect of widening the discharge scale in the discharge cell 8 region is exerted.
- the transparent electrode material is not cut off! There is no problem of insufficient storage.
- a force in which the partition 30 is formed as a stripe-shaped partition may be used as a grid-shaped partition.
- the notches are formed in the transparent electrodes 400 and 500 as in the fourth embodiment. It may be provided. In this case, it is desirable to provide the second dielectric layer 70 at the position of the cut.
- both sides of the notch may be provided. , The peak of the electric field intensity is easily formed.
- the present invention is not limited to the configuration of the fifth embodiment, and the following variations are possible.
- FIG. 13 shows that, in the discharge cell 8 region, the second dielectric layer 70 is aligned with the position of the address electrode 11 and arranged at a position corresponding to the main discharge gap G of the pair of display electrodes 4 and 5. Variation 4 with a different configuration.
- Such a configuration is effective when the crosstalk between the discharge cells 8 adjacent in the y direction does not matter so much as in the fifth embodiment. Also, since the shape is simpler than that of the second dielectric layer 70 of the fifth embodiment, there is an advantage that the manufacture is relatively easy.
- FIG. 14 shows a configuration in which the address electrodes 11 are formed in a normal band shape.
- the second dielectric layer 70 is characterized in that it has a strip shape similar to that of the above-mentioned nomination 4, and that the width of the address electrode 11 is formed larger than the width of the second dielectric layer 70.
- the discharge start position of the pair of display electrodes 4 and 5 is located directly above the address electrode 11 due to the positional relationship between the second dielectric layer 70 and the address electrode 11. Since the address discharge is included, the address discharge can be performed more reliably.
- the protective layer 7 is partially formed in the y direction over the main discharge gap G. It is also possible to adopt a configuration in which a small area is provided. This configuration takes into account the property that wall charges are not easily retained in the region where the protective layer 7 is not formed, and based on the principle that discharge occurs at two places in the discharge cell 8, the second dielectric As in the case where the body layer 70 is formed, the change in the electric field intensity distribution is utilized.
- a force showing a configuration in which a pair of display electrodes are arranged in the same direction in a column direction is not limited to this.
- a configuration in which the arrangement of the electrodes and the sustain electrodes is switched for each adjacent display electrode pair (a so-called ABBA rooster)! / ⁇ .
- PDPs that are useful in the present invention are useful as lightweight large-sized televisions and the like. It can also be applied to applications such as professional display devices.
- FIG. 1 is a configuration diagram around a discharge cell in a PDP according to a first embodiment.
- FIG. 2 is a configuration diagram around a discharge cell in a PDP according to a second embodiment.
- FIG. 3 is a configuration diagram around a discharge cell in a PDP of the Norision of Embodiment 2.
- FIG. 4 is a configuration diagram around a discharge cell in a PDP according to a third embodiment.
- FIG. 5 is a configuration diagram around a discharge cell in a PDP according to a fourth embodiment.
- FIG. 6 is a configuration diagram around a discharge cell in a PDP of a nomination according to a fourth embodiment.
- FIG. 7 is a configuration diagram of a periphery of a discharge cell in a PDP of the Norision of Embodiment 4.
- FIG. 8 is a view showing data (the relationship between cuts and potential distributions) of the example.
- FIG. 9 is a diagram showing data (relationship between cutting and reactive power) in the example.
- FIG. 10 is a diagram showing data (relationship between cut and reactive power) in the example.
- FIG. 11 is a configuration diagram around a discharge cell in a PDP according to a fifth embodiment.
- FIG. 12 is a configuration diagram (cross-sectional view) around a discharge cell in a PDP according to a fifth embodiment.
- FIG. 13 is a diagram showing a configuration around a discharge cell in a PDP of a nomination according to a fifth embodiment.
- FIG. 14 is a configuration diagram around a discharge cell in a PDP of a nomination according to a fifth embodiment. [15] FIG. 14 is a partial perspective view showing a configuration of a general PDP.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/576,671 US20070052348A1 (en) | 2003-10-30 | 2004-10-28 | Plasma display panel |
JP2005515148A JPWO2005043576A1 (ja) | 2003-10-30 | 2004-10-28 | プラズマディスプレイパネル |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003370379 | 2003-10-30 | ||
JP2003-370379 | 2003-10-30 |
Publications (1)
Publication Number | Publication Date |
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WO2005043576A1 true WO2005043576A1 (ja) | 2005-05-12 |
Family
ID=34543872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/016023 WO2005043576A1 (ja) | 2003-10-30 | 2004-10-28 | プラズマディスプレイパネル |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070052348A1 (ja) |
JP (1) | JPWO2005043576A1 (ja) |
KR (1) | KR20070006675A (ja) |
CN (2) | CN1898765A (ja) |
WO (1) | WO2005043576A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007042645A (ja) * | 2005-08-01 | 2007-02-15 | Samsung Sdi Co Ltd | プラズマディスプレイパネル |
US7781968B2 (en) | 2006-03-28 | 2010-08-24 | Samsung Sdi Co., Ltd. | Plasma display panel |
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JPH09237580A (ja) * | 1995-12-28 | 1997-09-09 | Pioneer Electron Corp | 面放電交流型プラズマディスプレイ装置及びその駆動方法 |
JPH10233171A (ja) * | 1997-02-20 | 1998-09-02 | Nec Corp | プラズマディスプレイパネル |
JPH1196921A (ja) * | 1997-09-19 | 1999-04-09 | Fujitsu Ltd | プラズマディスプレイパネル |
JP2000123748A (ja) * | 1998-10-16 | 2000-04-28 | Nec Corp | カラープラズマディスプレイパネル |
JP2000323038A (ja) * | 1999-05-10 | 2000-11-24 | Hitachi Ltd | プラズマディスプレイ装置およびプラズマディスプレイ装置の製造方法 |
JP2001006558A (ja) * | 1999-06-24 | 2001-01-12 | Matsushita Electric Ind Co Ltd | プラズマディスプレイパネル及びそれを用いたディスプレイ装置 |
JP2001015034A (ja) * | 1999-06-30 | 2001-01-19 | Fujitsu Ltd | ガス放電パネルとその駆動方法ならびにガス放電表示装置 |
JP2003217461A (ja) * | 2002-01-23 | 2003-07-31 | Matsushita Electric Ind Co Ltd | プラズマディスプレイ装置 |
JP2003242887A (ja) * | 2002-02-13 | 2003-08-29 | Sony Corp | プラズマ表示装置およびその駆動方法 |
Family Cites Families (1)
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US6376998B1 (en) * | 1999-04-21 | 2002-04-23 | Ushiodenki Kabushiki Kaisha | Feeding device for discharge lamp |
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2004
- 2004-10-28 KR KR1020067009918A patent/KR20070006675A/ko not_active Application Discontinuation
- 2004-10-28 JP JP2005515148A patent/JPWO2005043576A1/ja active Pending
- 2004-10-28 CN CNA2004800380221A patent/CN1898765A/zh not_active Withdrawn
- 2004-10-28 CN CNA2004800325046A patent/CN1875450A/zh not_active Withdrawn
- 2004-10-28 WO PCT/JP2004/016023 patent/WO2005043576A1/ja active Application Filing
- 2004-10-28 US US10/576,671 patent/US20070052348A1/en not_active Abandoned
Patent Citations (9)
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JPH09237580A (ja) * | 1995-12-28 | 1997-09-09 | Pioneer Electron Corp | 面放電交流型プラズマディスプレイ装置及びその駆動方法 |
JPH10233171A (ja) * | 1997-02-20 | 1998-09-02 | Nec Corp | プラズマディスプレイパネル |
JPH1196921A (ja) * | 1997-09-19 | 1999-04-09 | Fujitsu Ltd | プラズマディスプレイパネル |
JP2000123748A (ja) * | 1998-10-16 | 2000-04-28 | Nec Corp | カラープラズマディスプレイパネル |
JP2000323038A (ja) * | 1999-05-10 | 2000-11-24 | Hitachi Ltd | プラズマディスプレイ装置およびプラズマディスプレイ装置の製造方法 |
JP2001006558A (ja) * | 1999-06-24 | 2001-01-12 | Matsushita Electric Ind Co Ltd | プラズマディスプレイパネル及びそれを用いたディスプレイ装置 |
JP2001015034A (ja) * | 1999-06-30 | 2001-01-19 | Fujitsu Ltd | ガス放電パネルとその駆動方法ならびにガス放電表示装置 |
JP2003217461A (ja) * | 2002-01-23 | 2003-07-31 | Matsushita Electric Ind Co Ltd | プラズマディスプレイ装置 |
JP2003242887A (ja) * | 2002-02-13 | 2003-08-29 | Sony Corp | プラズマ表示装置およびその駆動方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2007042645A (ja) * | 2005-08-01 | 2007-02-15 | Samsung Sdi Co Ltd | プラズマディスプレイパネル |
US7538492B2 (en) | 2005-08-01 | 2009-05-26 | Samsung Sdi Co., Ltd. | Plasma display panel |
US7781968B2 (en) | 2006-03-28 | 2010-08-24 | Samsung Sdi Co., Ltd. | Plasma display panel |
Also Published As
Publication number | Publication date |
---|---|
CN1875450A (zh) | 2006-12-06 |
CN1898765A (zh) | 2007-01-17 |
US20070052348A1 (en) | 2007-03-08 |
KR20070006675A (ko) | 2007-01-11 |
JPWO2005043576A1 (ja) | 2007-05-10 |
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