CN101060053A - Fluorescent powder printed and formed shadow-mask plasma display panel on shadow-mask - Google Patents
Fluorescent powder printed and formed shadow-mask plasma display panel on shadow-mask Download PDFInfo
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- CN101060053A CN101060053A CNA2007100218177A CN200710021817A CN101060053A CN 101060053 A CN101060053 A CN 101060053A CN A2007100218177 A CNA2007100218177 A CN A2007100218177A CN 200710021817 A CN200710021817 A CN 200710021817A CN 101060053 A CN101060053 A CN 101060053A
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- shadow mask
- display panel
- plasma display
- fluorescent material
- dielectric layer
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Abstract
The mask plasma display comprises: a front panel (9), including a glass substrate (1), an electrode assembly (2), a dielectric layer (3), and a protective film (4); a back panel (10), including a glass substrate (5), an electrode assembly (6), a dielectric layer (7), and a protective film (8); and the mask (11) that is metal thin plate with micro-hole (12) array and set between two panels, wherein the fluorescent powder layer is formed on inner wall of (12) by screen-printing. This invention improves product performance, and reduces production cost.
Description
Technical field
The present invention relates to a kind of shadow mask plasma display panel, especially a kind of adopt that print process makes that fluorescent material forms on shadow mask shadow mask plasma display panel, fluorescent powder printed and formed shadow mask plasma display panel on specifically a kind of shadow mask.
Background technology
At present, the fluorescent material of shadow mask monochrome or colour plasma display board adopts the spraying technology preparation.Spraying technology is wider in sector applications such as printing, building, automobile makings, and technical maturity, but is applied to also have a lot of urgent problems in the fluorescent material preparation of shadow mask plasma display panel.At first, the fluorescent material of shadow mask plasma display panel need be sprayed in each micropore on the shadow mask, and it is bowl-shape that micropore is, and inner wall coarse, and fluorescent material is graininess, thereby wants to obtain densification and have the bisque of suitable thickness comparatively difficult at shadow mask micropore inwall, and the spraying coating process difficulty is big.Along with the increase of resolution, the bulk of micropore is littler, and the spraying difficulty is higher.Secondly, prepare fluorescent material, need to prepare in addition masking shadow mask, when red, green, blue three-color phosphor cover sprays, be used to block the fluorescent material of other color with the method that sprays.Thereby the arrangement regulation of the micropore on the masking shadow mask is identical with work shadow cover, but the quantity of micropore is 1/3 of work shadow cover.In the fluorescent material preparation process, the consume of mask shadow-mask is bigger, has therefore improved the cost of shadow mask.The 3rd, work shadow cover plays the effect of crosstalking and carrying fluorescent material that intercepts adjacent cells in plasma display panel, thereby must be designed to bowl-shapely, and promptly Yi Mian opening is bigger, and the opening of another side is less.Two surface stress inequalities that this must cause shadow mask show as the subregion warpage.Though and masking shadow mask can guarantee the stress equilibrium on two surfaces, its perforate quantity is significantly less than work shadow cover, and intensity is higher, and therefore the physical property of two kinds of shadow masks there are differences.And when spraying need closely be pasted two kinds of shadow masks clothes and fixing, the method for magnetic sheet absorption commonly used at present.Just because of the physical property of two kinds of shadow masks there are differences, promptly use the very strong magnetic sheet of magnetic that both are adsorbed, also be difficult to make the absorption of shadow mask edge closely, leave the slit between edge's masking shadow mask and work shadow cover, be prone to colour contamination during spraying, this phenomenon shows particularly outstanding on the large tracts of land shadow mask.In monochromatic shadow mask plasma display panel, the edge brightness inequality can appear.And in colored shadow mask plasma display panel, can find that edge color is impure, cause waste product.The 4th, during spraying, masking shadow mask is because will block the micropore of the other two kinds of colors on the work shadow cover, so place the work shadow cover front, just because of this, the fluorescent material that sprays to mask surface has only 30% to enter in the micropore of work shadow cover, and other 70% then is covered on the masking shadow mask, if the recycling effectively of this part fluorescent material just will cause huge waste.
The problem that exists in the above-mentioned fluorescent powder jet printing technology is perplexing the raising of shadow mask plasma display panel quality.
Summary of the invention
Existing cost height when the objective of the invention is to adopt spraying process to make forming phosphor at existing display panel, easily colour contamination, problem that technology difficulty is big provide fluorescent powder printed and formed shadow mask plasma display panel on a kind of easily manufactured, effective shadow mask.
Technical scheme of the present invention is:
Fluorescent powder printed and formed shadow mask plasma display panel on a kind of shadow mask; it comprises header board 9; back plate 10 and be clipped in shadow mask 11 between the front and rear panel; header board 9 comprises preceding substrate glass substrate 1; electrode group 2; dielectric layer 3 and diaphragm 4; electrode group 2 is between glass substrate 1 and dielectric layer 3; 4 surfaces that cover dielectric layer 3 of diaphragm; back plate 10 comprises back substrate glass substrate 5; electrode group 6; dielectric layer 7; diaphragm 8; electrode group 6 is between glass substrate 5 and dielectric layer 7; diaphragm 8 is positioned at dielectric layer 7 surfaces; shadow mask 11 is for comprising the sheet metal of micropore 12 arrays; the inwall of described micropore 12 is provided with phosphor powder layer, it is characterized in that described phosphor powder layer adopts the method setting of silk screen printing in described micropore 12.
Fluorescent material on the described micropore 12 is printed and formed successively by the order of red fluorescent material 13, green fluorescence powder 14, blue fluorescent material 15.
Described fluorescent material all is red fluorescent material 13, all is green fluorescence powder 14 or all is blue fluorescent material 15.
Beneficial effect of the present invention:
The present invention is used for forming phosphor by the ripe relatively silk-screen printing technique of adopting process, can reduce the manufacturing process difficulty of display panel greatly, simultaneously by reasonably designing the approach of silk-screen patterns and optimization silk-screen printing technique parameter, can obtain the not silk-screen effect of colour contamination, increase substantially the quality of display panel.Can not improve the utilance of fluorescent material in addition, reduce the waste of fluorescent material, the utilance of fluorescent powder paste material is reached more than 90%.
Description of drawings
Fig. 1 is the structural representation of shadow mask plasma display panel of the present invention.
Structural representation when Fig. 2 arranges by the bar shaped rule for the shadow mask micropore.
Structural representation when Fig. 3 arranges by " product " font rule for the shadow mask micropore.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As Figure 1-3.
A kind of shadow mask plasma display panel based on printing fluorescent material on the shadow mask, it comprises header board 9, back plate 10 and is clipped in shadow mask 11 between the front and rear panel.Header board comprises preceding substrate glass substrate 1, electrode group 2, dielectric layer 3 and diaphragm 4, electrode group 2 between glass substrate 1 and dielectric layer 3,4 surfaces that cover dielectric layer 3 of diaphragm.Back plate comprises back substrate glass substrate 5, electrode group 6, dielectric layer 7, diaphragm 8, and electrode group 6 is between glass substrate 5 and dielectric layer 7, and diaphragm 8 is positioned at dielectric layer 7 surfaces.Shadow mask 11 is the sheet metals that comprise micropore 12 arrays, adopts the method for silk screen printing, and the inwall of each micropore is covered with fluorescent material, and by the sequence arrangement of red fluorescent material 13, green fluorescence powder 14, blue fluorescent material 15.
During concrete enforcement, the fluorescent material that covers in the shadow mask micropore 12 can all be red fluorescent material 13, or all is green fluorescence powder 14, or all is blue fluorescent material 15, is made into monochromatic shadow mask plasma display panel.
During concrete enforcement, shadow mask micropore 12 can be arranged by the bar shaped rule, also can arrange by " product " font rule.
During concrete enforcement, in the silk-screen printing technique process, shadow mask can not use the adsorption function of being furnished with on the screen process press and be fixed on the bearing ink pad, but can select the method for soft magnet plate absorption, perhaps can select other method of attaching that shadow mask is pasted clothes on the object of surfacing (this object surfaces fineness should between Ra0.32-2.5 micron, flatness between on the dull and stereotyped medium between the 0.01-0.2 millimeter), begin printing again after more smooth object being adsorbed on the original bearing ink pad of screen process press.
The proportioning of the fluorescent material that the present invention does not relate to, pore size, silk-screen printing technique and parameter etc. are all same as the prior art.
Claims (5)
1; fluorescent powder printed and formed shadow mask plasma display panel on a kind of shadow mask; it comprises header board (9); back plate (10) and be clipped in shadow mask (11) between the front and rear panel; header board (9) comprises preceding substrate glass substrate (1); electrode group (2); dielectric layer (3) and diaphragm (4); electrode group (2) is positioned between glass substrate (1) and the dielectric layer (3); diaphragm (4) then covers the surface of dielectric layer (3); back plate (10) comprises back substrate glass substrate (5); electrode group (6); dielectric layer (7); diaphragm (8); electrode group (6) is positioned between glass substrate (5) and the dielectric layer (7); diaphragm (8) is positioned at dielectric layer (7) surface; shadow mask (11) is for comprising the sheet metal of micropore (12) array; the inwall of described micropore (12) is provided with phosphor powder layer, it is characterized in that described phosphor powder layer adopts the method setting of silk screen printing in described micropore (12).
2, fluorescent powder printed and formed shadow mask plasma display panel on the shadow mask according to claim 1 is characterized in that the fluorescent material on the described micropore (12) is printed and formed successively by the order of red fluorescent material (13), green fluorescence powder (14), blue fluorescent material (15).
3, fluorescent powder printed and formed shadow mask plasma display panel on the shadow mask according to claim 1 is characterized in that described fluorescent material all is red fluorescent material (13), all is green fluorescence powder (14) or all is blue fluorescent material (15).
4, fluorescent powder printed and formed shadow mask plasma display panel on the shadow mask according to claim 1 is characterized in that the micropore (12) on the described shadow mask (11) or presses the arrangement of bar shaped rule, or arranges by " product " font rule.
5, fluorescent powder printed and formed shadow mask plasma display panel on the shadow mask according to claim 1, it is characterized in that at first with shadow mask (11) adopt magnetic absorption method or mounting method place surface smoothness between Ra0.32-2.5 micron, flatness on the dull and stereotyped medium between the 0.01-0.2 millimeter, and then should the flat board medium be installed on the bearing ink pad of screen process press and print.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100218177A CN100530503C (en) | 2007-04-29 | 2007-04-29 | Fluorescent powder printed and formed shadow-mask plasma display panel on shadow-mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100218177A CN100530503C (en) | 2007-04-29 | 2007-04-29 | Fluorescent powder printed and formed shadow-mask plasma display panel on shadow-mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101060053A true CN101060053A (en) | 2007-10-24 |
| CN100530503C CN100530503C (en) | 2009-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100218177A Expired - Fee Related CN100530503C (en) | 2007-04-29 | 2007-04-29 | Fluorescent powder printed and formed shadow-mask plasma display panel on shadow-mask |
Country Status (1)
| Country | Link |
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| CN (1) | CN100530503C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009070997A1 (en) * | 2007-11-26 | 2009-06-11 | Nanjing Huaxian High Technology Co., Ltd. | Plasma display panel with fluorescent layer printed on shadow-mask |
| CN101281843B (en) * | 2008-05-27 | 2010-06-02 | 南京华显高科有限公司 | Method for preparing shadow mask type plasma display screen fluorescent powder membrane |
-
2007
- 2007-04-29 CN CNB2007100218177A patent/CN100530503C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009070997A1 (en) * | 2007-11-26 | 2009-06-11 | Nanjing Huaxian High Technology Co., Ltd. | Plasma display panel with fluorescent layer printed on shadow-mask |
| CN101281843B (en) * | 2008-05-27 | 2010-06-02 | 南京华显高科有限公司 | Method for preparing shadow mask type plasma display screen fluorescent powder membrane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100530503C (en) | 2009-08-19 |
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Granted publication date: 20090819 Termination date: 20120429 |