CN101290854B - Method for preventing plasma display from hole-filling by fluorescent powder printing - Google Patents
Method for preventing plasma display from hole-filling by fluorescent powder printing Download PDFInfo
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- CN101290854B CN101290854B CN2008101237184A CN200810123718A CN101290854B CN 101290854 B CN101290854 B CN 101290854B CN 2008101237184 A CN2008101237184 A CN 2008101237184A CN 200810123718 A CN200810123718 A CN 200810123718A CN 101290854 B CN101290854 B CN 101290854B
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- shadow mask
- hole
- fluorescent powder
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Abstract
The invention discloses a method for preventing printing hole blocking of fluorescent powder used for a plasma display, which belongs to the flat television technical field. The method is characterized in that: firstly, pattern arrangements corresponding to printing screens are preset according to the arrangement condition of shadow mask holes on a printing shadow mask to ensure that the quantityof patterns on each-color screen is equal to one third of the quantity of all the holes on the shadow mask; secondly, the patterns on each-color screen are designed into ring-shaped patterns, the dimension and the shape of which are matched with those of the shadow mask holes. The method has the advantages of simplicity and feasibility, successfully solves printing and shaping problems of fluorescent powder paste in a shadow mask type PDP, and has no color mixing and hole blocking after the printing; and a fluorescent powder layer is even and compact, and has smooth surface and high luminous efficiency.
Description
Technical field
The present invention relates to a kind of plasma scope technology, the especially plasma scope printing process of fluorescent material, specifically a kind of method that prevents plasma scope with fluorescent powder printed plug-hole.
Background technology
At present, SMPDP is a kind of novel shadow mask formula subtend discharge-type PDP.In its structure, use the barrier in the alternative traditional PD P making of shadow mask, saved the complicated procedures of forming of on metacoxal plate, making high and narrow barrier, make the whole combination that processing procedure is divided into three individual components of shielding simultaneously; Shadow mask is the accessory of a maturation in the CRT colorful visualization pipe manufacturer, uses shadow mask as barrier like this, and the rate of finished products that whole screen is made improves, and cost descends.Shadow mask wherein, its material is pure iron (an AK steel), cellular construction is pressed the demand of display pixel, be designed to the penetrating mesh of strip or product word arrangement, each mesh is: the front of facing prebasal plate is designed to macropore, the shadow mask reverse side of facing metacoxal plate is designed to aperture, and phosphor powder layer then prepares on the inwall of mesh, as shown in Figure 1.
It is traditional method during PDP makes that silk screen print method prepares phosphor powder layer.In traditional barrier formula PDP, fluorescent powder paste material only need print in the groove that is full of between the barrier, and by control oven dry and sintering process, guarantee that the medial surface of barrier and the phosphor powder layer that one deck uniform thickness is formed on the bottom get final product, so be used for the fluorescent powder printed silk-screen patterns of barrier formula PDP and only need be made into or opening size consistent and get final product less than the bar paten of barrier spacing with the barrier spacing.For shadow mask type PDP, wherein the shadow mask that uses as barrier is designed to the penetrating mesh of strip or product word arrangement, and in order to satisfy the requirement of shadow mask type PDP discharge, phosphor powder layer can only prepare on the inwall of this mesh, and can not block the aperture position, in order to avoid the influence discharge forms.But because the defective in design and the manufacturing, existing method for printing screen all is easy to occur the aperture phenomenon of blocking, for subsequent treatment process has increased difficulty, has influenced the display quality of plasma display panel (PDP).
Summary of the invention
Easily the aperture position is produced blocking problem when the objective of the invention is to prepare at the shadow mask type PDP phosphor powder layer, invent a kind of plasma scope that prevents and both guaranteed with the method for fluorescent powder printed plug-hole that fluorescent powder paste material can be printed on the inwall of meshes of shadow mask, guarantee again can not block shadow mask eyelet.
Technical scheme of the present invention is:
A kind of method that prevents plasma scope with fluorescent powder printed plug-hole, it is characterized in that at first arranging situation according to shadow mask hole on the shadow mask to be printed is provided with printing with arranged in patterns corresponding on the half tone, make the quantity of the pattern on every look half tone equal 1/3 of all hole counts on the shadow mask, secondly the pattern on every look half tone is designed to the circular pattern that matches with shadow mask hole size and shape.
Described circular pattern can also be designed to the cross loop configuration of four limit indents.
The silk-screen patterns of fluorescent powder printed usefulness of the present invention according to the arranging situation of shadow mask hole among the SMPDP, is designed to the arranging situation in a certain monochromatic hole in the corresponding shadow mask hole with the silk screen hole, and its quantity is 1/3 of shadow mask hole quantity.And, the silk screen hole is designed to a kind of circular pattern according to the size and the shape of shadow mask hole.As shown in Figure 2.
Beneficial effect of the present invention:
The present invention is directed to the requirement of shadow mask type PDP phosphor powder layer preparation, reach the purpose of control printing effect by control to screen printed pattern, by being designed to the method for circular pattern and control number of patterns with the right silk-screen patterns of shadow mask hole, guaranteed that fluorescent powder paste material can be printed on the inwall of meshes of shadow mask, and do not blocked shadow mask eyelet.This invention has the advantage of simple possible, successful solution the printing of fluorescent powder paste material in shadow mask type PDP, shaping problem, printing back non-mixed color, no plug-hole, phosphor powder layer even compact, smooth surface and luminous efficiency height.
Description of drawings
Fig. 1 is that shadow mask hole of the present invention is arranged schematic diagram.
Fig. 2 is that arrange and and silk screen hole shape schematic diagram in silk screen of the present invention hole.
Fig. 3 is an another kind of silk screen pass schematic diagram of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Embodiment one.
As shown in Figure 2, a kind of method that prevents plasma scope with fluorescent powder printed plug-hole, it reaches not only anti-blocking but also can guarantee fluorescent powder printed purpose on the shadow mask hole inwall by changing to the arranging situation of silk-screen patterns and to the concrete shape of silk-screen patterns.
During concrete enforcement, according to the arranging situation of shadow mask hole among the SMPDP, a certain monochromatic hole that the silk screen hole is designed in the corresponding shadow mask hole is arranged, its quantity is 1/3 of shadow mask hole.
During concrete enforcement,, the shaped design in silk screen hole is become a kind of circular pattern that is complementary with shadow mask hole size and profile according to the shape of shadow mask hole.
During concrete printing, deployed fluorescent powder paste material is aimed at the silk screen hole again with shadow mask hole earlier, carries out fluorescent powder printedly, after the printing shadow mask is examined under a microscope, and the interior slurry of shadow mask hole prints full, non-mixed color, no plug-hole.
Embodiment two:
As shown in Figure 3, a kind of method that prevents plasma scope with fluorescent powder printed plug-hole at first according to the arranging situation of shadow mask hole among the SMPDP, is arranged a certain monochromatic hole that the silk screen hole is designed in the corresponding shadow mask hole, and its quantity is 1/3 of shadow mask hole.
During concrete enforcement and since among the SMPDP between adjacent two holes of shadow mask hole four limit size disparities less, cause colour mixture for avoiding owing to aim at the deviation that occurs, the shaped design in silk screen hole is become the cross of the four limit indents that a kind of and shadow mask hole size and profile be complementary.
During concrete printing, can first deployed fluorescent powder paste material, again the silk screen hole is aimed at shadow mask hole, carry out fluorescent powder printedly, after the printing shadow mask to be examined under a microscope, the interior slurry of shadow mask hole prints full, non-mixed color, no plug-hole.And prove by experiment, adopt the cross mesh, be no more than at deviation of the alignment under the situation of 40 μ, the colour mixture situation does not all appear after the printing.
Claims (2)
1. method that prevents plasma scope with fluorescent powder printed plug-hole, it is characterized in that at first arranging situation according to shadow mask hole on the shadow mask to be printed is provided with printing with arranged in patterns corresponding on the half tone, make the quantity of the pattern on every look half tone equal 1/3 of all hole counts on the shadow mask, secondly the pattern on every look half tone is designed to the circular pattern that matches with shadow mask hole size and shape.
2. the method that prevents plasma scope with fluorescent powder printed plug-hole according to claim 1 is characterized in that described circular pattern is the cross loop configuration of four limit indents.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101237184A CN101290854B (en) | 2008-05-30 | 2008-05-30 | Method for preventing plasma display from hole-filling by fluorescent powder printing |
| PCT/CN2008/071862 WO2009070997A1 (en) | 2007-11-26 | 2008-08-04 | Plasma display panel with fluorescent layer printed on shadow-mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101237184A CN101290854B (en) | 2008-05-30 | 2008-05-30 | Method for preventing plasma display from hole-filling by fluorescent powder printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101290854A CN101290854A (en) | 2008-10-22 |
| CN101290854B true CN101290854B (en) | 2010-06-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101237184A Expired - Fee Related CN101290854B (en) | 2007-11-26 | 2008-05-30 | Method for preventing plasma display from hole-filling by fluorescent powder printing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101290854B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198247A (en) * | 1996-06-11 | 1998-11-04 | 菲利浦电子有限公司 | Provision of color elements on substrates by means of screen-printing or stencil-printing method |
| CN1630006A (en) * | 2003-12-05 | 2005-06-22 | 东海商事株式会社 | Mask for luminescent materials printing and luminescent materials feeding method |
| CN101000852A (en) * | 2006-12-27 | 2007-07-18 | 南京华显高科有限公司 | Surface discharge shadow mask type plasma display panel with new-type electrode structure |
-
2008
- 2008-05-30 CN CN2008101237184A patent/CN101290854B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198247A (en) * | 1996-06-11 | 1998-11-04 | 菲利浦电子有限公司 | Provision of color elements on substrates by means of screen-printing or stencil-printing method |
| CN1630006A (en) * | 2003-12-05 | 2005-06-22 | 东海商事株式会社 | Mask for luminescent materials printing and luminescent materials feeding method |
| CN101000852A (en) * | 2006-12-27 | 2007-07-18 | 南京华显高科有限公司 | Surface discharge shadow mask type plasma display panel with new-type electrode structure |
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| Publication number | Publication date |
|---|---|
| CN101290854A (en) | 2008-10-22 |
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Granted publication date: 20100602 Termination date: 20120530 |