CN100573792C - Plasma display - Google Patents
Plasma display Download PDFInfo
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- CN100573792C CN100573792C CNB2005100904596A CN200510090459A CN100573792C CN 100573792 C CN100573792 C CN 100573792C CN B2005100904596 A CNB2005100904596 A CN B2005100904596A CN 200510090459 A CN200510090459 A CN 200510090459A CN 100573792 C CN100573792 C CN 100573792C
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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
- 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
- H01J11/20—Constructional details
- H01J11/34—Vessels, containers or parts thereof, e.g. substrates
- H01J11/36—Spacers, barriers, ribs, partitions or the like
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- 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
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- 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
- H01J2211/32—Disposition of the electrodes
- H01J2211/323—Mutual disposition of electrodes
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- 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
- H01J2211/34—Vessels, containers or parts thereof, e.g. substrates
- H01J2211/44—Optical arrangements or shielding arrangements, e.g. filters or lenses
- H01J2211/444—Means for improving contrast or colour purity, e.g. black matrix or light shielding means
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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
A kind of plasma display, comprise: upper substrate, at the following dielectric layer that forms on the upper dielectric layer that forms on the lower surface of upper substrate, the infrabasal plate relative, the upper surface, a plurality of addressing electrodes that are separated from each other that in dielectric layer down, are provided with at infrabasal plate with upper substrate, be included in and extend between the addressing electrode and be parallel to addressing electrode and a plurality of barrier ribs, the luminescent coating that in the arc chamber that vertically is provided with between the barrier rib, forms and a plurality of electrode pairs of keeping that in upper dielectric layer, are provided with of the vertical barrier rib that is separated from each other that is being provided with between upper substrate and the infrabasal plate.Keeping electrode for every pair comprises: first keeps electrode and second keeps electrode, described first keep electrode and second keep electrode above the discharge space between adjacent vertical barrier rib respectively from the outwards outstanding discharging gap that forms of described vertical barrier rib.
Description
Technical field
The present invention relates to a kind of plasma display, more particularly, thereby relate to a kind of plasma display that improved structure can improve light emission brightness and improve discharging efficiency that has.
Background technology
Usually, filled under the state of gas between the electrode in being arranged at seal cavity, produce glow discharge by applying predetermined voltage to electrode, and use is at the ultraviolet ray excited luminescent coating that forms with predetermined pattern of glow discharge operating period generation, to form image in plasma display.
According to driving method of plasma display panel, plasma display can be divided into direct current (DC) plasma display and exchange (AC) plasma display.In addition, comprise the number of electrode according to plasma display, plasma display can be divided into two electrode types or three electrode types.The DC plasma display comprises that the AC plasma display comprises by address discharge is separated the addressing electrode that improves addressing speed with keeping to discharge in order to cause the auxiliary electrode of auxiliary discharge.Equally, according to the arrangement of the electrode of carrying out discharge, the AC plasma display can be divided into subtend discharge-type and surface discharge type.Subtend discharge-type AC plasma display comprises that being separately positioned on two that formation is discharged on two substrates keeps electrode, generation is perpendicular to the discharge of panel, and surface discharge type comprises that two of being arranged on the substrate keep electrode and produce discharge with the surface at substrate.
The AC plasma display of general surface discharge type three-electrode structure is described below.
Plasma display comprises the upper substrate and the infrabasal plate that is parallel to the upper substrate setting of display image thereon.
The electrode pair of keeping that comprises public electrode and scan electrode forms on the lower surface of upper substrate.Public electrode and scan electrode are separated from each other by discharging gap (g).The public bus electrode that public electrode comprises common transparent electrode and forms on the lower surface of common transparent electrode, scan electrode comprise scanning transparency electrode and the scanning bus electrode that forms on the lower surface of scanning transparency electrode.Keep electrode pair and covered by upper dielectric layer, protective layer forms on the lower surface of upper dielectric layer.
In addition, infrabasal plate is relative with upper substrate, and addressing electrode forms on the upper surface of infrabasal plate perpendicular to keeping electrode pair.Addressing electrode is by dielectric layer covering down.The barrier rib of the horizontal barrier rib that comprises vertical barrier rib and intersect with vertical barrier rib forms on the upper surface of dielectric layer down, limits arc chamber with matrix shape.The mode that the barrier rib forms is to keep electrode pair and addressing electrode zone intersected with each other corresponding to arc chamber.In order to realize colour, in arc chamber, optionally form red, green, blue phosphor layers.In arc chamber, fill discharge gas.
On have, in the plasma display of structure, keep electrode pair and can have multiple structure.Constitute the common transparent electrode of the public electrode of keeping electrode pair and the scanning transparency electrode of scan electrode and form band shape, and common transparent electrode forms discharging gap (g) with the scanning transparency electrode in arc chamber.Discharge between common transparent electrode and scanning transparency electrode starts from discharging gap (g), and diffuses to whole arc chamber.
For the discharge that will start from discharging gap (g) diffuses to whole arc chamber effectively, should initial discharge take place in broad zone.Yet when discharging gap (g) had predetermined width, initial discharge took place partly and can not carry out the discharge diffusion fully.When producing when discharge by public bus electrode and scanning bus electrode are applied voltage, between common transparent electrode and scanning transparency electrode, do not form steady electric field, like this, in common transparent electrode and scanning transparency electrode, the unnecessary part of discharge increases.This unnecessary part has reduced the discharging efficiency in the arc chamber, and has blocked arc chamber most, thereby has reduced emission brightness.
Summary of the invention
The invention provides a kind of plasma display, this plasma display floater has improved electrode structure, thereby improves light emission brightness and discharging efficiency.
The present invention also provides a kind of plasma display, and this plasma display floater is easy to control display area size, thereby increases emission brightness and colour temperature, and fully guarantees the tolerance limit of addressing voltage.
In addition, the invention provides a kind of plasma display, this plasma display floater can be guaranteed discharge stability and improve the efficient of discharge operation that it is effective to be easy to realization and cost simultaneously.
According to an aspect of the present invention, a kind of plasma display is provided, has comprised: upper substrate, the upper dielectric layer that on the lower surface of upper substrate, forms, the infrabasal plate relative with upper substrate, the following dielectric layer that on the upper surface of infrabasal plate, forms, the a plurality of addressing electrodes that are arranged on down in the dielectric layer and separate respectively, be arranged on to have between upper substrate and the infrabasal plate between addressing electrode and extend and a plurality of barrier ribs of and the vertical barrier rib that respectively separate parallel with described addressing electrode, the luminescent coating that in the discharge space that is arranged between vertical barrier rib, forms, the a plurality of electrode pairs of keeping that in upper dielectric layer, are provided with.Keeping electrode for every pair comprises: first keeps electrode and second keeps electrode, described first keep that electrode and second keeps that electrode hinders along the longitudinal that rib alternately is provided with and above the vertical discharge space between the barrier rib respectively from the outwards outstanding discharging gap that forms of the major axis of described vertical barrier rib, described discharging gap extends along the longitudinal direction of discharge space.
First keeps electrode is included in described discharge space top from described vertical barrier rib outwards outstanding first transparency electrode and first bus electrode that is connected with described first transparency electrode; Second keeps electrode, and to be included in described discharge space top outwards outstanding to form second transparency electrode and second bus electrode that is connected with described second transparency electrode of discharging gap with described first transparency electrode from described vertical barrier rib.
Luminescent coating comprises respectively that emission is red, redness, green and the blue phosphor layers of green and blue light, and it is bigger than the area of the part that is arranged on described first, second transparency electrode above other luminescent coating to be arranged on the area of part of described first, second transparency electrode of the described luminescent coating top with minimum maximum brightness level.
Luminescent coating comprises respectively emission redness, green, the redness of blue light, green, blue phosphor layers, and it is bigger than the area of the part that is arranged on described first, second transparency electrode above other luminescent coating to be arranged on the area of part of described first, second transparency electrode above the described luminescent coating with minimum addressing voltage tolerance limit.
This plasma display floater also is included at least one floating electrode between first transparency electrode and second transparency electrode.
The recess that forms discharging gap forms at the edge of first, second transparency electrode, and between first, second recess floating electrode is set.
According to a further aspect in the invention, provide a kind of plasma display, this plasma display floater comprises: first substrate; Second substrate contiguous with described first substrate; The following dielectric layer that on the upper surface of described second substrate, forms; Be arranged in the described dielectric layer down and separated a plurality of addressing electrodes; Be arranged between described upper substrate and the described infrabasal plate, be included between the described addressing electrode and extend and a plurality of barrier ribs of and separated vertical barrier rib substantially parallel with described addressing electrode; The luminescent coating that in the discharge space that is arranged between described vertical barrier rib, forms; The a plurality of electrode pairs of keeping that in described upper dielectric layer, are provided with, every pair comprises: first keeps electrode and second keeps electrode, described first keep that electrode and second keeps that electrode hinders along the longitudinal that rib alternately is provided with and above the vertical discharge space between the barrier rib respectively from the outwards outstanding discharging gap that forms of the major axis of described vertical barrier rib, described discharging gap extends along the longitudinal direction of discharge space.
Description of drawings
When the reference accompanying drawing is described in detail when of the present invention, of the present invention more fully explain and appended advantage will be clearer also is easier to understand simultaneously, and identical label is represented components identical all the time, wherein:
Fig. 1 is the decomposition diagram according to the plasma display of conventional art;
Fig. 2 is the decomposition diagram of plasma display according to an embodiment of the invention;
Fig. 3 is the cutaway view along the plasma display of the line III-III intercepting of Fig. 2;
Fig. 4 is the plane graph of arranging on the arc chamber in the plasma display of Fig. 2 of keeping electrode pair;
Fig. 5 is the plane graph of the improvement example of keeping electrode pair of Fig. 4;
Fig. 6 is the decomposition diagram of plasma display according to another embodiment of the present invention;
Fig. 7 is the cutaway view along the plasma display of the line VII-VII intercepting of Fig. 6;
Fig. 8 is the plane graph of arranging in the arc chamber in the plasma display of Fig. 6 of keeping electrode pair and floating electrode.
Embodiment
Turn to accompanying drawing now, Fig. 1 is the perspective view with AC plasma display 10 of general surface discharge type three-electrode structure.
With reference to figure 1, this plasma display floater 10 comprises the upper substrate 11 of display image and the infrabasal plate 21 that be arranged in parallel with upper substrate 11 thereon.
The electrode pair 12 of keeping that comprises public electrode 13 and scan electrode 14 forms on the lower surface of upper substrate 11.Public electrode 13 and scan electrode 14 are separated from each other by discharging gap (g).Public electrode 13 comprises common transparent electrode 13a and the public bus electrode 13b that forms on the lower surface of common transparent electrode 13a; Scan electrode 14 comprises scanning transparency electrode 14a and the scanning bus electrode 14b that forms on the lower surface of scanning transparency electrode 14a.Keep electrode pair 12 and covered by upper dielectric layer 15, protective layer 16 forms on the lower surface of upper dielectric layer 15.
In addition, infrabasal plate 21 is relative with upper substrate 11, and forms the addressing electrode 22 vertical with keeping electrode pair 12 on the upper surface of infrabasal plate 21.Addressing electrode 22 is by dielectric layer 23 coverings down.The barrier rib 24 of the horizontal barrier rib 24b that comprises vertical barrier rib 24a and intersect with vertical barrier rib 24a forms on the upper surface of dielectric layer 23 down, limits arc chamber 25 with matrix shape.The generation type of barrier rib 24 is, keeps electrode pair and addressing electrode 22 zone intersected with each other corresponding to arc chamber 25.In order to realize colour, in arc chamber 25, optionally form red, green, blue phosphor layers 26.In arc chamber 25, fill discharge gas.
On have, in the plasma display 10 of structure, keep electrode pair 12 and can have multiple structure.For example, with reference to figure 1, constitute the common transparent electrode 13a of the public electrode 13 of keeping electrode pair 12 and the scanning transparency electrode 14a of scan electrode 14 and form band shape, and common transparent electrode 13a forms discharging gap (g) with scanning transparency electrode 14a in arc chamber 25.Discharge between common transparent electrode 13a and scanning transparency electrode 14a starts from discharging gap (g), and is flooded to whole arc chamber 25.
For the discharge that will start from discharging gap (g) diffuses to whole arc chamber 25 effectively, should initial discharge take place in broad zone.Yet when discharging gap (g) had predetermined width, as shown in Figure 1, initial discharge took place and can not carry out the discharge diffusion fully in the part.When public bus electrode 13b and scanning bus electrode 14b being applied voltage produce discharge, between common transparent electrode 13a and scanning transparency electrode 14a, do not form steady electric field, like this, in common transparent electrode 13a and scanning transparency electrode 14a, the redundance of discharge increases.This redundance has reduced the discharging efficiency in the arc chamber 25, and has blocked arc chamber 25 most, has therefore reduced emission brightness.
Fig. 2 is the perspective view according to the plasma display 100 of the embodiment of the invention, Fig. 3 is the cutaway view along the plasma display of the line III-III of Fig. 2 intercepting, and Fig. 4 is the plane graph of arranging on the arc chamber in the plasma display of Fig. 2 of keeping electrode pair.
Referring to figs. 2 to Fig. 4, plasma display 100 comprises upper substrate 111 and the infrabasal plate 131 relative with upper substrate 111.
Keep electrode pair 121 by by as PbO, B
2O
3Or SiO
2The upper dielectric layer made of dielectric material 112 cover, and upper dielectric layer 112 prevents from the discharge operation process directly to be bombarded by charged particle and keeps on the electrode pair 121 and produce and destroy keeping electrode pair 121, and the induction charging particle.
In addition, the protective layer 113 that the lower surface of upper dielectric layer 112 can be made by MgO covers, and protective layer 113 prevents from the discharge operation process directly to be bombarded on the upper dielectric layer 112 and upper dielectric layer 112 produced destroy by charged particle.In addition, when charged particle and protective layer 113 bumped, protective layer 113 can be launched secondary electron to improve discharging efficiency.
Addressing electrode 132 forms the parallel bar that separate vertical with keeping electrode pair 121 on the upper surface of the infrabasal plate 131 relative with upper substrate 111.Addressing electrode 132 is by dielectric layer 133 coverings down, and barrier rib 134 is forming with predetermined pattern on the dielectric layer 133 down.
Vertically barrier rib 135 extends in parallel with addressing electrode 132, and each addressing electrode 132 can be arranged between vertical barrier rib 135 of neighbour.In addition, laterally hinder rib 136 and can comprise that the first horizontal barrier rib 136a and second that is separated from each other to form the space between them laterally hinders rib 136b.Comprise that the first horizontal rib 136a of barrier and second zone that laterally hinders the space between the rib 136b are non-discharge area, and first space that laterally hinders between the rib 136a and the second horizontal barrier rib 136b can be as air discharge channel.The arrangement of barrier rib 134 is not subjected to the restriction of said structure, and barrier rib 134 can have the band shape of various structures as not having laterally to hinder rib 136.
Ultraviolet ray excitedly come the luminescent coating 137 of visible emitting to be arranged in the arc chamber 138 that limits by barrier rib 134 by what in discharge operation, produce with said structure.Luminescent coating 137 can be formed on the part of the side of barrier rib 134 and the following dielectric layer 133 that barrier rib 134 exposes.For display color, luminescent coating 137 can be made by redness, green and blue emitting phophor, and therefore, in arc chamber 138, luminescent coating 137 can be divided into redness, green and cyan coloring layer.The discharge gas that will comprise Ne and Xe is filled in the arc chamber 138 that is provided with luminescent coating 137 therein.
Keep electrode pair 121 and comprise that first keeps electrode 122 and second and keep electrode 125.First keeps the effect of playing public electrode that electrode 122 and second is kept electrode 125, and another plays the effect of scan electrode.
First keep electrode 122 comprise on the side that is arranged on arc chamber 138 first transparency electrode 123 with first transparency electrode, 123 public first bus electrodes 124 that are connected.Second keeps electrode 125 comprises second transparency electrode 126 on another side that is arranged on arc chamber 138, to form discharging gaps and second bus electrode 127 that is connected with second transparency electrode 126 with first transparency electrode 123.
More particularly, above arc chamber 138, first keeps first transparency electrode 123 of electrode 122 from vertical barrier rib 135 outwards outstanding preset distances.In addition, above arc chamber 138, second second transparency electrode 126 of keeping electrode 125 is outwards given prominence to preset distances from vertical barrier rib 135, and is separated to predetermined gap to form discharging gaps at each arc chamber 138 with first transparency electrode 123.
Because first transparency electrode 123 and second transparency electrode 126 that are arranged on the arc chamber 138 form square configuration and outstanding to arc chamber 138 from vertical barrier rib 135, so the zone of the arc chamber 138 of discharge takes place can be increased, that is, laterally hinder spacing between the rib 136 greater than the vertical spacing between the barrier rib 135.That is, unit pixel comprises that respectively emission is red, green, three arc chambers 138 of blue visible light, and because unit pixel forms rectangle usually, so the spacing that laterally hinders between the comparable vertical barrier rib 135 of spacing between the rib 136 is big three times.When the gap ratio between the horizontal barrier rib 136 vertically hinders big three times of spacing between the rib 135, because first transparency electrode 123 and second transparency electrode 126 are outwards outstanding from vertical barrier rib 135 above arc chamber 138, so it is big that the regional comparable zone that generation is discharged in conventional art of discharge takes place, conventional art is that transparency electrode is outstanding to arc chamber from horizontal barrier rib respectively.Therefore, low-voltage driving can be carried out, brightness can be improved.
Have first recess 123a of predetermined curvature and the edge that the second recess 126a is recessed into first transparency electrode 123 and second transparency electrode 126, thereby form discharging gap.Therefore, between the second recess 126a of the first recess 123a of first transparency electrode 123 and second transparency electrode 126, form long gap (Lg), between first transparency electrode 123 that does not form the first recess 123a and the second recess 126a and second transparency electrode 126, form the short air gap (Sg) narrower than Lg.Because the first recess 123a and the second recess 126a that form on first transparency electrode 123 and second transparency electrode 126 divide growth gap (Lg) and short air gap (Sg) with discharging gap, so discharge can be focused on central part so that discharge stability, and, therefore improve discharging efficiency because the end except the first recess 123a and the second recess 126a forms the initial voltage that short air gap (Sg) can reduce discharge.That is, keeping discharge starts from short air gap (Sg) and spreads to long gap (Lg) and whole arc chamber 138.
In order to improve the aperture ratio of panel 100, the first base portion 124a and the second base portion 127a can be set on the horizontal barrier rib 136 of non-discharge area top.For example, with reference to figure 4, when each laterally barrier rib 136 comprise the first horizontal barrier rib 136a and second laterally during barrier rib 136b that is separated from each other, a pair of first base portion 124a that keeps electrode 121 and another can be separately positioned on the first horizontal horizontal barrier rib 136b place of barrier rib 136a and second to the second base portion 127a that keeps electrode 121.
In order to improve the aperture ratio of panel 100, the first connecting portion 124b that extends from the first base portion 124a is set on the vertical barrier rib 135 that is provided with first transparency electrode 123, and the second connecting portion 127b that extends from the second base portion 127a is set on the vertical barrier rib 135 that is provided with second transparency electrode 126.In addition, the central part that the first connecting portion 124b and the second connecting portion 127b can pass first transparency electrode 123 and second transparency electrode 126 extends to the edge of this first transparency electrode 123 and this second transparency electrode 126, when the first connecting portion 124b and the second connecting portion 127b have black layer, this structure is desirable, thereby because improves contrast because exterior light can be absorbed by black layer.Yet first, second connecting portion is not limited to said structure, and if first, second base portion be connected respectively to first, second transparency electrode, first, second connecting portion can have any structure.
In addition, be set up the arc chamber 138 of red-emitting phosphors layer thereon as red sub-pixel; The arc chamber 138 that has been set up the green-emitting phosphor layer thereon act as green sub-pixels; The arc chamber 138 that has been set up blue phosphor layers thereon is as blue subpixels.Because this redness, green, blue subpixels constitute unit pixel, so each unit pixel can be represented different colours by the combination of three kinds of primary colours.
More specifically, owing to be divided into a plurality of levels from each brightness of the redness red, green, that blue phosphor layers is launched, green, blue light, for example, 256 grades, therefore each unit pixel of the combination of the redness by being divided into 256 grades respectively, green, blue light represents 16,770,000 kinds of colors.
The red-emitting phosphors layer is by as Y (V, P) O
4: the fluorescent material of Eu is made, and the green-emitting phosphor layer is by as Zn
2SiO
4: Mn or YBO
3: the fluorescent material of Tb is made, and blue phosphor layers is to be made by the fluorescent material as BAM:Eu.Owing to red, green, blue phosphor layers are made by the fluorescent material with different qualities, therefore, different from the emission maximum brightness of the redness red, green, that blue phosphor layers is launched, green, blue light.
When emission maximum brightness hot, green, blue light is different, cause the emission maximum brightness of unit pixel to reduce owing to have the color of minimum emission maximum brightness, and when each brightness red, green, blue light is in emission maximum brightness respectively, the white light of the light red composition by can obtaining to have low colour temperature in conjunction with this three look.
For the high-high brightness that improves unit pixel and obtain white light, keep electrode pair 121 and can have the structure shown in Fig. 5 with high colour temperature.
With reference to figure 5, first transparency electrode 123 of discharge and the part of second transparency electrode 126 take place to be form differently in each arc chamber 138, described part is arranged on the part of arc chamber 138 tops.That is, be arranged on first transparency electrode 123 of luminescent coating top and the part of second transparency electrode 126 and have bigger zone than first transparency electrode 123 of the top of the luminescent coating that is arranged on other color and the part of second transparency electrode 126 with minimum high-high brightness.By widening first transparency electrode 123 and second transparency electrode 126 that is parallel to vertical barrier rib 135 bearing of trends, can control the region of discharge of first transparency electrode 123 and second transparency electrode 126 easily.According to this structure, can improve the high-high brightness of luminescent coating with minimum maximum brightness level, therefore, can improve the high-high brightness of unit pixel and the white light that acquisition has high colour temperature.
As mentioned above, tolerance limit excitated red, green, the needed addressing voltage of blue phosphor layers can change according to the difference between the fluorescent material characteristic.The tolerance limit of addressing voltage is poor for the maximum of the addressing voltage that can be used to keep stable discharge operation and minimum value.When the addressing voltage tolerance limit of the luminescent coating with minimum addressing voltage tolerance limit increases, address discharge can be carried out with being stabilized, thereby the part that is arranged on first transparency electrode 123 on the luminescent coating with minimum addressing voltage tolerance limit and second transparency electrode 126 can form to be had than being arranged on first transparency electrode 123 on other color luminescent coating and the bigger zone of part of second transparency electrode 126.
The operation of the plasma display 100 with said structure will be described now.
When between scan electrode and addressing electrode 132, applying addressing voltage, address discharge takes place, this scan electrode is first to keep electrode 122 and second and keep one of electrode 125, and the arc chamber 138 of keeping discharge is arc chambers 138 of selecting by address discharge.After address discharge operation, keep electrode 122 and second and keep electrode 125 and alternately apply and keep voltage being arranged on first of selecteed arc chamber 138 tops, and keep electrode 122 and second first and keep between the electrode 125 and keep discharge.Keep discharge since the short air gap (Sg) between first transparency electrode 123 and second transparency electrode 126, until long gap (Lg), and spread gradually up to whole arc chamber 138.By the energy level step-down of keeping discharge excited discharge gas, thus the emission ultraviolet ray.The ultraviolet ray excited luminescent coating 137 that forms in arc chamber 138, luminescent coating 137 visible emitting that are excited are with display image.
Fig. 6 to Fig. 8 shows plasma display 200 in accordance with another embodiment of the present invention.Fig. 6 is the perspective view of plasma display 200, and Fig. 7 is that Fig. 8 is arranged on the plane graph of keeping electrode pair of Fig. 6 of arc chamber top along the cutaway view of the plasma display 200 of the line VII-VII intercepting of Fig. 6.Because same numeral is represented components identical in the accompanying drawing, therefore will omit detailed description to them.
,, in plasma display 200, keep first of discharge in generation and keep electrode 122 and second and keep at least one floating electrode 240 is set between the electrode 125 to Fig. 8 with reference to figure 6.
More particularly, floating electrode 240 is buried in the upper dielectric layer 112, and can be set at the top at arc chamber 138 centers.In addition, floating electrode 240 is set between the second recess 126a of the first recess 123a of first transparency electrode 123 and second transparency electrode 126, and separates with the second recess 126a with the first recess 123a.For example, therefore floating electrode 240 can be made into the shape corresponding shape with the first recess 123a and the second recess 126a, and can form the curvature that is similar to the first recess 123a and the second recess 126a to separate the spacing of fixing with the first recess 123a and the second recess 126a.That is, when the first recess 123a and the second recess 126a between first transparency electrode 123 and second transparency electrode 126 when being formed centrally predetermined radii, floating electrode 240 can be made into thin rounded flakes.But the shape of floating electrode 240 is not limited thereto example.
In order not interfere the transmission of passing upper substrate 111 from luminescent coating 137 visible light emitted, floating electrode 240 can be by making as the material of ITO (tin indium oxide).Owing to floating electrode 240 is not applied extra voltage,, on floating electrode 240, form induced voltage so keep electrode 125 and apply voltage by keeping electrode 122 and second to first.Induced voltage can be and is applied to first and keeps electrode 122 and second and keep median between the voltage of electrode 125.
When on floating electrode 240, forming induced voltage,, therefore, can carry out discharge effectively because the particle of igniting in arc chamber moves and impel the formation of charged particle actively.So according to the comparison of present embodiment and conventional art, when counter plate applied identical voltage, described plasma display can maybe can obtain the image of high brightness low voltage operated.In addition, can keep the maximization of discharging of keeping that produces between the electrode 125 with keeping electrode 122 and second first, and will be in the address discharge between scan electrode and the addressing electrode 132 maximization, this scan electrode is first to keep electrode 122 and second and keep one of electrode 125.
In addition, for the emission maximum brightness that improves each unit pixel, obtain to have the white light of high colour temperature and guarantee that the tolerance limit of addressing voltage enough stably carries out address discharge, keep electrode pair 121 and can form as shown in Figure 5 structure.
According to the present invention, keep that electrode and second is kept first transparency electrode on the electrode and second transparency electrode is outwards outstanding from vertical barrier rib of arc chamber top owing to be arranged on first, to form discharging gap betwixt, so region of discharge can be improved to bigger than the region of discharge of conventional art, thereby plasma display can low-voltage driving and is improved brightness.In addition, because first transparency electrode and second transparency electrode are outwards outstanding from vertical barrier rib of arc chamber top, thus be easy to control the size of region of discharge, thus emission brightness and colour temperature increased, and fully guarantee the tolerance limit of addressing voltage.In addition, because the discharging gap between first transparency electrode and second transparency electrode comprises long gap portion and short air gap part, therefore and floating electrode can be set between first transparency electrode and second transparency electrode, can guarantee discharge stability and improve the efficient of discharge operation.
Although illustrated and described the present invention particularly with reference to exemplary embodiment of the present invention, but for will be understood by those skilled in the art that, under the situation of the spirit and scope of the present invention that do not break away from claim and limited, can make various modifications to wherein form and details.
The sequence number of distribution that the application submitted in Korea S Department of Intellectual Property with reference on August 13rd, 2004 and on August 20th, 2004, formal is " the PLASMA DISPLAY PANEL " of 10-2004-0063767 number and 10-2004-0065884 number, and require their priority, and they are comprised in this application.
Claims (21)
1. plasma display comprises:
Upper substrate;
The upper dielectric layer that on the lower surface of described upper substrate, forms;
The infrabasal plate relative with described upper substrate;
The following dielectric layer that on the upper surface of described infrabasal plate, forms;
Be arranged in the described dielectric layer down and separated a plurality of addressing electrodes;
Be arranged between described upper substrate and the described infrabasal plate, be included between the described addressing electrode extend and with a plurality of barrier ribs of the parallel and separated vertical barrier rib of described addressing electrode;
The luminescent coating that in the discharge space that is arranged between described vertical barrier rib, forms;
The a plurality of electrode pairs of keeping that in described upper dielectric layer, are provided with, every pair comprises: first keeps electrode and second keeps electrode, described first keep that electrode and second keeps that electrode hinders along the longitudinal that rib alternately is provided with and above the vertical discharge space between the barrier rib respectively from the outwards outstanding discharging gap that forms of the major axis of described vertical barrier rib, described discharging gap extends along the longitudinal direction of discharge space.
2. plasma display as claimed in claim 1, wherein:
Described first keeps electrode is included in described discharge space top from described vertical barrier rib outwards outstanding first transparency electrode and first bus electrode that is connected with described first transparency electrode;
Described second keeps electrode, and to be included in described discharge space top outwards outstanding to form second transparency electrode and second bus electrode that is connected with described second transparency electrode of discharging gap with described first transparency electrode from described vertical barrier rib.
3. plasma display as claimed in claim 2, wherein, described first transparency electrode is arranged on the top of discharge space of the both sides of one of described vertical barrier rib, and described second transparency electrode is arranged on and the vertical top of the discharge space of the both sides of barrier rib of contiguous another of one of described barrier rib.
4. plasma display as claimed in claim 2, wherein, described first bus electrode comprises: with vertically extending first base portion of described vertical barrier rib, with first connecting portion that extends and be connected with described first transparency electrode to described first transparency electrode from described first base portion; Described second bus electrode comprises: perpendicular to second base portion of described vertical barrier rib extension, with second connecting portion that extends and be connected with described second transparency electrode to described second transparency electrode from described second base portion.
5. plasma display as claimed in claim 4, wherein, described barrier rib also comprises horizontal barrier rib, and this laterally hinders rib and extends perpendicular to described vertical barrier rib and be separated from each other, and described first, second base portion is arranged on separately on the described horizontal barrier rib of mutual vicinity.
6. plasma display as claimed in claim 5, wherein, each described horizontal barrier rib comprises that separated first laterally hinders laterally barrier rib of rib and second.
7. plasma display as claimed in claim 4, wherein, described first, second connecting portion alternately is arranged on described vertical barrier rib.
8. plasma display as claimed in claim 4, wherein, described first, second connecting portion extends to the edge of described first transparency electrode and the central part of described first, second transparency electrode of process.
9. plasma display as claimed in claim 4, wherein, described each first, second bus electrode comprises black layer.
10. plasma display as claimed in claim 1, wherein, described luminescent coating comprises first, second and the 3rd colour phosphor layer of launching first colourama, second colourama and the 3rd colourama respectively, and it is bigger than the area of the part that is arranged on described first, second transparency electrode above other luminescent coating to be arranged on the area of part of described first, second transparency electrode of the described luminescent coating top with minimum maximum brightness level.
11. plasma display as claimed in claim 1, wherein, described luminescent coating comprises respectively emission redness, green, the redness of blue light, green, blue phosphor layers, and it is bigger than the area of the part that is arranged on described first, second transparency electrode above other luminescent coating to be arranged on the area of part of described first, second transparency electrode above the described luminescent coating with minimum addressing voltage tolerance limit.
12. plasma display as claimed in claim 1, wherein, the recess that forms described discharging gap forms at the edge of described first, second transparency electrode, described recess forms long gap, and the remainder of described first, second transparency electrode forms the short air gap shorter than long gap.
13. plasma display as claimed in claim 12, wherein, described recess has predetermined curvature.
14. plasma display as claimed in claim 1 also is included in the protective layer that forms on the lower surface of described upper dielectric layer.
15. plasma display as claimed in claim 1, wherein, described first, second kept one of electrode as public electrode, and another is as scan electrode.
16. plasma display as claimed in claim 5, wherein, the spacing that laterally hinders between the comparable vertical barrier rib of spacing between the rib is big three times.
17. plasma display as claimed in claim 1 also is included at least one floating electrode between described first transparency electrode and described second transparency electrode.
18. plasma display as claimed in claim 17, wherein, the recess that forms described discharging gap forms at the edge of described first, second transparency electrode, and described floating electrode is set between described recess.
19. plasma display as claimed in claim 18, wherein, described recess has predetermined curvature, and described floating electrode evenly forms on distance ground in all positions and the described recess distance of described recess.
20. a plasma display comprises:
First substrate;
Second substrate contiguous with described first substrate;
The following dielectric layer that on the upper surface of described second substrate, forms;
Be arranged in the described dielectric layer down and separated a plurality of addressing electrodes;
Be arranged between described upper substrate and the described infrabasal plate, be included between the described addressing electrode and extend and a plurality of barrier ribs of and separated vertical barrier rib substantially parallel with described addressing electrode;
The luminescent coating that in the discharge space that is arranged between described vertical barrier rib, forms;
The a plurality of electrode pairs of keeping that in described upper dielectric layer, are provided with, every pair comprises: first keeps electrode and second keeps electrode, described first keep that electrode and second keeps that electrode hinders along the longitudinal that rib alternately is provided with and above the vertical discharge space between the barrier rib respectively from the outwards outstanding discharging gap that forms of the major axis of described vertical barrier rib, described discharging gap extends along the longitudinal direction of discharge space.
21. plasma display as claimed in claim 20, first keeps electrode also comprises and is arranged on first first transparency electrode of keeping on the electrode, second keeps electrode also comprises and is arranged on second second transparency electrode of keeping on the electrode, described first transparency electrode and second transparency electrode are outwards outstanding and first from described vertical barrier rib above described discharge space, form discharging gap between second transparency electrode, described first, described discharging gap between second transparency electrode comprises long gap portion and short air gap part, first, between second transparency electrode floating electrode is set.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040063767A KR100615239B1 (en) | 2004-08-13 | 2004-08-13 | Plasma display panel |
| KR1020040063767 | 2004-08-13 | ||
| KR1020040065884 | 2004-08-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1734701A CN1734701A (en) | 2006-02-15 |
| CN100573792C true CN100573792C (en) | 2009-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100904596A Expired - Fee Related CN100573792C (en) | 2004-08-13 | 2005-08-15 | Plasma display |
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| Country | Link |
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| KR (1) | KR100615239B1 (en) |
| CN (1) | CN100573792C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101040208B1 (en) | 2009-11-13 | 2011-06-09 | 삼성에스디아이 주식회사 | Plasma display panel and manufacturing method of the same |
-
2004
- 2004-08-13 KR KR1020040063767A patent/KR100615239B1/en not_active IP Right Cessation
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- 2005-08-15 CN CNB2005100904596A patent/CN100573792C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1734701A (en) | 2006-02-15 |
| KR100615239B1 (en) | 2006-08-25 |
| KR20060014981A (en) | 2006-02-16 |
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