CN101038836A - printed plate for dielectric of plasma display screen panel - Google Patents
printed plate for dielectric of plasma display screen panel Download PDFInfo
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- CN101038836A CN101038836A CN 200610024731 CN200610024731A CN101038836A CN 101038836 A CN101038836 A CN 101038836A CN 200610024731 CN200610024731 CN 200610024731 CN 200610024731 A CN200610024731 A CN 200610024731A CN 101038836 A CN101038836 A CN 101038836A
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Abstract
The invention relates to a dielectric use printed plate dielectric of plasma display screen panel, which is a dielectric use printed plate dielectric of plasma display screen panel forms a dielectric layer on a glass substrate of the plasma display screen panel formed by specifically electrodes in a squeeze-film method. The invention includes dielectric layer basic material for forming dielectric layer, and a protective membrane disposed on at least one part of the upper portion and the lower portion of the basic material, and the basic material of dielectric contains binder component and plasticizer component. The invention adjusts the extension strength and intensity of the dielectric basic material for forming the a dielectric printed plate of the plasma display screen panel to accrete the printed plate tightly on the substrate of the plasma display screen panel so as to improve the quality of the plasma display screen panel.
Description
Technical field
The present invention relates to plasma display screen panel, refer in particular to a kind of printed plate for dielectric that on the glass substrate of the plasma display screen panel that forms by special electrodes (Plasma Display Panel), forms a kind of plasma display screen panel of dielectric layer by press mold.
Background technology
In present widely used plasma panel, by being flooded with a plurality of little spaces of unit that are similar to cell body in the spaced walls that forms between front substrate and the back substrate, the little space of this unit is referred to as cell cube, in each cell cube, filling such as neon (Ne), helium (He), and the main discharge gas of the mist of neon and helium (Ne+He) etc. and comprise the inert gas of a spot of xenon.When beginning to discharge under the effect of high frequency voltage, inert gas will produce the vacuum ultraviolet (Vacuum Ultraviolet Rays) that is invisible to the naked eye, and makes that the fluorescent material of smearing in the spaced walls that forms is luminous between front and back panel, thereby manifests picture.The plasma display screen panel of this formation is light and thin, has led the trend of display unit, thereby has received much attention as display unit of new generation.
Fig. 1 is the simple schematic diagram of present common plasma display screen panel structure.
As shown in Figure 1, in present widely used plasma display screen panel,, on its glass 101, arranging a plurality of by scan electrode 103 with keep the electrode pair of keeping that 103 pairings of sustain electrode form as the front substrate 100 of display frame display surface; And on the glass 111 of the back at its back side substrate 110, arranging a plurality of address electrodes 113, with above-mentioned a plurality of electrode settings that intersect of keeping.The front-back baseboard of Gou Chenging combination arranged side by side separated by a distance like this.
Above-mentioned front substrate 100 is by cell cube is discharged mutually, impel the luminous scan electrode of cell cube and keep electrode to constitute, promptly by the scan electrode 102 of the bus electrode of the above-mentioned ITO conductivity of reinforcement that possesses transparency electrode that transparent ITO material forms and constitute by metal material with keep electrode and match the electrode pair that forms and constitute.Scan electrode and keep electrode and be limited discharging current covers the more than one dielectric layer 104 of mutually insulated between the electrode pair, forms the protective layer that is covered with magnesium oxide (MgO) on upper dielectric layer usually again, assists discharge to realize smoothly.
Equality is being arranged the little space of a plurality of discharges on the substrate 110 in the back, is the strip interlayer that forms the discharge cell body.Simultaneously corresponding with the above-mentioned discharge cell body that is arranged in parallel what be arranged in parallel is a plurality of address electrodes 113, and above-mentioned address electrode is responsible for the address discharge and is impelled the generation vacuum ultraviolet.The upper side of substrate is being smeared R, G, B (red, green, blue) fluorescent substance 114 in the back, when discharging in the address, can produce the visible rays of display image.In the middle of address electrode and fluorescent substance, be formed with one deck dielectric layer 115, be responsible for the protection address electrode.
Essential even, the open and flat and transparent height of above-mentioned insulating barrier.If insulating barrier does not meet above-mentioned condition, promptly inhomogeneous, not open and flat and do not have a higher transparency, the image that then can't realize ideal shows that when luring electrical characteristics deviation to occur, defective will appear in the demonstration of plasma display screen panel.
Simultaneously, lower dielectric layer 115 plays the effect to the luminous reflecting plate that reflects of its fluorescent material of smearing above 114, and therefore, reflectivity is high more, and the illumination effect of fluorophor is good more.
On the constituted mode of the dielectric layer 104,115 of this top and bottom, what adopt usually is silk screen (Screen) print process or dry film (Dry Film) method.
Silk screen print method is to be printed on the glass substrate repeatedly with containing the pasty mass that glass dust smears with resin, above-mentioned glass substrate (Glass Panel) the 101, the 111st, by for realize specific function special provision the electrode 102,103,113 of thickness constitute, adopt drying process afterwards repeatedly, finally on glass substrate, form smear layer, thereby obtain a kind of method of dielectric layer.But this method is a kind of so-called wet method, the dielectric layer of once-forming, and its thickness can not reach perfect condition.Simultaneously, when this method of employing, be coated with spread pasty mass after, for making solvent evaporates, also to append daub repeatedly, cause the activity duration long, the not high possibility that can cause occurring dissolvent residual again of operating efficiency, expense that so not only make to make dielectric layer raises, and solvent that may be residual can bring secondary face to ring to dope layer, finally can have influence on the performance of dielectric layer 104,115.
For addressing this is that, the dry film method is arisen at the historic moment.The material that is about to dielectric layer is made the film like printed board in advance, is placed in a kind of method on the substrate afterwards.The produced dielectric layer of this method, its thickness is even, have an even surface, and manufacturing process is simple, the production efficiency height, thereby be widely used.This method is combined in pcb layer on the glass substrate 101,111 that is formed by special electrodes 102,103,113 by using printed board film pressing device (Green Sheet Laminating Apparatus), finally forms dielectric layer 104,115.
Fig. 2 is that the printed board film pressing device constitutes positive simple schematic diagram.With reference to shown in Figure 2, the dielectric formation in bottom dielectric, middle and lower part that forms on the upper dielectric layer that forms on the substrate of front and the back substrate is illustrated.
As shown in Figure 2, printed board film pressing device 200 is by the supply unit 210 that printed board is provided; The printed board that to be peelled off diaphragm 310 is placed in a (not shown) of locational film pressing device suitable on the glass substrate 111; And, top and the bottom press mold cylinder 220,230 of printed board press mold on glass substrate constituted to printed board 300 and glass substrate pressurization.In addition, above-mentioned printed board film pressing device also comprises and wraps the recoverer 240 of being stripped from the diaphragm that gets off from printed board; Printed board is cut to the cutting part of appropriate length.Though do not show entirely that in Fig. 2 in the reality, the diaphragm of printed board can be installed in the top and bottom of printed board, also can only be placed in the lower end of printed board.The situation that is placed in top and bottom need be provided with a recoverer as shown in the figure in addition, and the recoverer by film pressing device removes the diaphragm of lower end, and the press mold cylinder by top and bottom removes the diaphragm of upper end again; Under the situation that only is placed in the printed board upper end, need not recoverer as shown in Figure 2, can be but need to be provided with again by removing an other recoverer of diaphragm after top and the bottom press mold cylinder effect.
In the process that dielectric layer 115 forms, use the printed board film pressing device 200 of above-mentioned formation, by the press mold cylinder 220,230 of this device, with printed board attached on the glass substrate 111.Simultaneously, for making printed board very securely attached on the glass substrate, printed board should have suitable intensity that stretches (ratio that material stretches to length direction) and suitable intensity.
Fig. 3 a to Fig. 3 b is that printed plate for dielectric is not exclusively attached to the attachment state front elevation on the substrate.
Shown in Fig. 3 a to Fig. 3 b, before forming dielectric layer 115 on the substrate 111, should at first form electrode.Because the electrode 113 that adheres to, form above the substrate prominent recessed, this prominent recessed be by be in contact with one another between electrode and substrate or electrode and electrode between the space form.For printed board 300 closely repeatedly is pressed on the aforesaid substrate, particularly with aforesaid substrate on prominent concave portion combine closely, the material of printed board should have certain pliability, otherwise the combination fully of printed board and substrate.If the combination fully of printed board and substrate then causes the dielectric layer performance low easily, for example, thereby the insulation effect of destroying electrode brings negative effect for the flash-over characteristic of plasma display screen panel.Like this, dielectric layer can't be given full play to its effect, thereby can not realize the effect imagined, and then goes wrong easily when plasma display screen panel drives.
As mentioned above, in the process that forms dielectric layer 104,115, printed board should possess a certain size the intensity that stretches, if the intensity that stretches that it possesses is too big, under the too soft situation of printed board just, occur dielectric layer easily and on substrate, roll, thereby make dielectric layer inhomogeneous, unsmooth.In this case, if the upper dielectric layer that forms by the way appearance is inhomogeneous, rough phenomenon then causes the user can't see that satisfied image shows, causes the display defect of plasma display screen panel easily; If above-mentioned situation appears in lower dielectric layer, as playing the lower dielectric layer that when fluorescent substance is luminous, has than the reflecting plate effect of strong reflection rate, because dielectric layer is inhomogeneous, causes the difference of reflectivity, thereby makes it can not realize normal function.
Have, after lower dielectric layer forms, form spaced walls in the above, if the quality of dielectric layer 115 is too soft, spaced walls 112 moves under the effect of dielectric layer easily, thereby also causes the quality of plasma display screen panel low easily.
As mentioned above, the dielectric layer of plasma display screen panel should keep the stretch intensity and the intensity of appropriate level with printed board, if stretch the intensity height, then intensity is low; If the intensity height, the intensity that then stretches is low, could guarantee that like this printed board closely is combined on the substrate, brings into play the effect of dielectric layer effectively.The printed board that possesses suitable stretch intensity and intensity that for this reason should adopt the dielectric layer of making plasma display screen panel to use.
Summary of the invention
Therefore, the present invention is in order to address the above problem, a kind of printed plate for dielectric of plasma display screen panel is provided, by when making the printed plate for dielectric of plasma display screen panel, regulate the stretch intensity and the intensity of its employed dielectric stock, make printed board can be closely attached on the substrate of plasma display screen panel the time, give full play to its function that should have.
For achieving the above object; the printed plate for dielectric of plasma display screen panel of the present invention is included as: the dielectric stock that forms dielectric layer; and the diaphragm that is provided with on the top of stock or at least one position in the bottom, and dielectric stock comprises bond composition and plasticizer composition.
Be the effect of realizing ideal, the bond composition should be polyvinyl acetate (Poly vinylacetate at least, PVA), polyvinyl alcohol (Poly vinyl Alcohol), and polyvinylpyrrolidone (Poly vinylpyrrolidone, PVP), polyvinylbutyral (Poly vinyl butyral), polymethyl methacrylate (polymethylmethacrylate, PMMA), a kind of in the polyethylene formaldehyde (Poly vinyl formol).
Simultaneously, be the effect of realizing ideal, plasticizer should be polyoxyethylene (Poly ethyleneglycol) at least, BBP(Butyl Benzyl Phthalate (Butyl benzyl phthalate, BBP), dibutyl phthalate (Dibutyl Phthalate), dioctyl phthalate (Dioctyl phthalate), a kind of in the ethylene glycol (Ethylene glycol).
The proportioning ratio of the above-mentioned bond composition that contained of dielectric stock and above-mentioned plasticizer composition should be between 1: 0.5 to 1: 5 scope in the present invention.
At this moment, the intensity that stretches of dielectric stock is at 150kg/cm
2To 1800kg/cm
2Between the scope.
Simultaneously, the intensity of dielectric stock is at 100kg/cm
2To 800kg/cm
2Between the scope.
Effect of the present invention:
Printed plate for dielectric according to aforesaid plasma display screen panel of the present invention, by stretch intensity and intensity for the dielectric stock of dielectric printed board of forming plasma display screen panel are regulated, make printed board effectively close attachment on the substrate of plasma display screen panel, thereby improve the quality of plasma display screen panel.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the simple schematic diagram of present common plasma display screen panel structure.
Fig. 2 is the front elevation of printed board film pressing device structure.
Fig. 3 a to Fig. 3 b is that printed plate for dielectric is not exclusively attached to the attachment state front elevation on the substrate.
Fig. 4 is according to the present invention, the front elevation of the printed plate for dielectric of plasma display screen panel.
Fig. 5 is fully attached to the attachment state front elevation on the substrate according to printed plate for dielectric of the present invention.
The symbol description of critical piece in the accompanying drawing:
10: printed board 12: the dielectric stock
14: top diaphragm 16: the bottom diaphragm
20: substrate 30: electrode
Embodiment
Below, in conjunction with the accompanying drawings, the printed plate for dielectric of plasma display screen panel provided by the present invention is elaborated.
Fig. 4 is according to the present invention, the dielectric body of plasma display screen panel printed board front elevation.
As shown in Figure 4, the printed plate for dielectric 10 of plasma display screen panel provided by the present invention is included as the dielectric stock 12 that forms dielectric layer; At the set diaphragm 14,16 in the top or bottom of above-mentioned dielectric stock 12.Diaphragm described here can only be the top diaphragm 14 of dielectric stock.This diaphragm is usually under the effect of film pressing device (Fig. 2 200), before going up attached to substrate (Fig. 2 111) or be stripped from afterwards.
Above-mentioned dielectric stock comprises bond (Binder) composition and plasticizer (Plasticizer) composition.
The bond composition is regulated the intensity of printed board, and the plasticizer composition is regulated the intensity that stretches of printed board.That is, the bond composition is many more, and the intensity of printed board is high more, and the also corresponding reduction of its intensity that stretches; The plasticizer composition is many more, and the intensity that stretches of printed board is high more, and the also corresponding reduction of its intensity.
Employed bond should be polyvinyl acetate (Poly vinyl acetate among the present invention, PVA), polyvinyl alcohol (Poly vinyl Alcohol), polyvinylpyrrolidone (Poly vinyl pyrrolidone, PVP), polyvinylbutyral (Poly vinyl butyral), polymethyl methacrylate (polymethylmethacrylate, PMMA), a kind of in the polyethylene formaldehyde (Poly vinyl formol).Perhaps can also use the bond of other kind.
And the plasticizer among the present invention plays the effect of the flexible softening agent of employed raising (Softener) in the daily life, between the molecule of materials such as plastics, add plasticizer, can weaken between material molecule such as plastics the power of direct pull mutually, it is folding crooked that it is easy to.Plasticizer used in the present invention should be polyoxyethylene (Poly ethylene glycol), BBP(Butyl Benzyl Phthalate (Butyl benzyl phthalate, BBP), dibutyl phthalate (Dibutyl Phthalate), dioctyl phthalate (Dioctylphthalate), a kind of in the ethylene glycol (Ethylene glycol).In addition, can also use other polytype plasticizer.
According to the present invention, when making printed plate for dielectric, the above-mentioned bond composition that is contained in the dielectric stock and the proportioning ratio of above-mentioned plasticizer composition should be between 1: 0.1 to 1: 5 scopes.That is, if the bond composition value that is contained in the above-mentioned dielectric stock is 1, then the composition value of above-mentioned plasticizer should be between 0.1 to 5.Illustrate, promptly according to the present invention, when making printed plate for dielectric, when the weight of employed dielectric stock is 1kg, removing bond composition and plasticizer composition other composition weight range in addition should be between 85g to 98g, the content range of bond composition should be between 1g to 10g, and the content of plasticizer composition should be between 1g to 5g.
Proportioning ratio according to above-mentioned bond composition and plasticizer composition, when the bond component content reaches minimum, when the plasticizer component content reaches peak, the proportioning ratio that is above-mentioned bond composition and plasticizer composition is 1: 5 o'clock, according to the present invention, the intensity that stretches of dielectric stock should be 1800kg/cm
2The most suitable, intensity surpasses 1800kg/cm if stretch this moment
2, the dielectric stock that constitutes printed board 10 landing trickling from the substrate easily makes dielectric layer surface inhomogeneous, therefore need allocate according to the proportioning ratio of above-mentioned bond composition and plasticizer composition.
As mentioned above, if reach minimum value at the bond component content, and the plasticizer material composition reaches maximum, and promptly the proportioning ratio of bond composition and plasticizer composition is 1: 5 o'clock, and according to the present invention, the intensity of dielectric stock should be 100kg/cm
2The most suitable, if the undercapacity 100kg/cm of dielectric stock
2The time, the printed board that is made of the dielectric stock is difficult for combining closely with substrate.
On the contrary, when the bond component content reaches peak, when the plasticizer component content reached minimum, the proportioning ratio of promptly above-mentioned bond composition and plasticizer composition was 10: 1 o'clock, according to the present invention, the intensity that stretches that constitutes the dielectric stock of printed board should be 150kg/cm
2The most suitable, and dielectric stock intensity should be 800kg/cm in the proportioning ratio of this kind bond composition and plasticizer composition
2At this moment, if the undercapacity 150kg/cm that stretches of dielectric stock
2, then be prone to the printed board shown in Fig. 3 a the dielectric stock can not with because complete combination of substrate of the prominent recessed injustice of electrode formation surface, and if the intensity of the dielectric stock of printed board surpasses 800kg/cm
2, identical problem also appears easily.
Fig. 5 be according to dielectric body of the present invention with printed board fully attached to the attachment state front elevation on the substrate.
As shown in Figure 5, for forming dielectric layer, according to the present invention, behind the diaphragm 14,16 of removing printed plate for dielectric 10, dielectric stock 12 is just attached on the substrate 20.The design that aforesaid the present invention is different from the past, it is by regulating stretch intensity and intensity effectively, makes the substrate that is formed by electrode 30 problem shown in Fig. 3 a and Fig. 3 b can not occur, thereby helps the abundant displaying of plasma display screen panel advantage.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (6)
1, a kind of printed plate for dielectric of plasma display screen panel is characterized in that comprising:
Form the dielectric stock of dielectric layer;
The diaphragm that on the top of described dielectric stock or at least one position in the bottom, is provided with;
Described dielectric stock comprises bond composition and plasticizer composition.
2, the printed plate for dielectric of plasma display screen panel as claimed in claim 1 is characterized in that:
Above-mentioned bond composition should be a kind of in polyvinyl acetate, polyvinyl alcohol, polyvinylpyrrolidone, polyvinylbutyral, polymethyl methacrylate, the polyethylene formaldehyde at least.
3, the printed plate for dielectric of plasma display screen panel as claimed in claim 1 is characterized in that:
Above-mentioned plasticizer should be a kind of in polyoxyethylene, BBP(Butyl Benzyl Phthalate, dibutyl phthalate, dioctyl phthalate, the ethylene glycol at least.
4, as the printed plate for dielectric of claim item 1 or 2 or 3 described plasma display screen panels, it is characterized in that:
The above-mentioned bond composition that above-mentioned dielectric stock is contained and the proportioning ratio of above-mentioned plasticizer composition are between 1: 0.5 to 1: 5 scope.
5, the printed plate for dielectric of plasma display screen panel as claimed in claim 4 is characterized in that:
The intensity that stretches of described dielectric stock is at 150kg/cm
2To 1800kg/cm
2Between the scope.
6, the printed plate for dielectric of plasma display screen panel as claimed in claim 4 is characterized in that:
The intensity of above-mentioned dielectric stock is at 100kg/cm
2To 800kg/cm
2Between the scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610024731 CN101038836A (en) | 2006-03-16 | 2006-03-16 | printed plate for dielectric of plasma display screen panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610024731 CN101038836A (en) | 2006-03-16 | 2006-03-16 | printed plate for dielectric of plasma display screen panel |
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| Publication Number | Publication Date |
|---|---|
| CN101038836A true CN101038836A (en) | 2007-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610024731 Pending CN101038836A (en) | 2006-03-16 | 2006-03-16 | printed plate for dielectric of plasma display screen panel |
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| CN (1) | CN101038836A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110770644A (en) * | 2018-01-23 | 2020-02-07 | 株式会社Lg化学 | Color conversion film, and backlight unit and display device including the same |
-
2006
- 2006-03-16 CN CN 200610024731 patent/CN101038836A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110770644A (en) * | 2018-01-23 | 2020-02-07 | 株式会社Lg化学 | Color conversion film, and backlight unit and display device including the same |
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Open date: 20070919 |