CN101422773A - Bottom mat mask shadow-mask aligned spray-painting method - Google Patents
Bottom mat mask shadow-mask aligned spray-painting method Download PDFInfo
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- CN101422773A CN101422773A CNA2008102348080A CN200810234808A CN101422773A CN 101422773 A CN101422773 A CN 101422773A CN A2008102348080 A CNA2008102348080 A CN A2008102348080A CN 200810234808 A CN200810234808 A CN 200810234808A CN 101422773 A CN101422773 A CN 101422773A
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Abstract
The invention relates to a method for coating by pointing at a bottom pad shadow mask. A magnetic field is formed by the conduction of a shadow mask (4) padded at a bottom layer and by the uniformly distributed rubber absorption magnetic plates (8). The attachment condition of trichromatic fluorescent powder slurry made from rare earth oxide components can be obviously improved along with the improvement of the distribution conformity condition of the magnetic field. The method can reduce the reverse bounce action of a small amount of atomized slurry with great kinetic energy, the decrease of the number of bounced slurry grains not only helps prevent a coated fluorescent powder layer from being damaged, but also can reduce pollution to the operation environment. The method has the advantages of compact and smooth finally-formed fluorescent powder layer, large powder coating amount, high brightness and good conformity of light emitting.
Description
Technical field
The present invention relates to a kind of manufacturing process of shadow mask plasma display, the technology of particularly a kind of mask shadow-mask and the coating of work shadow cover inwall phosphor powder layer, specifically a kind of bottom mat mask shadow-mask is aimed at the method for spraying.
Background technology
Existing shadow mask plasma display utilizes the shadow mask of using always in the color cathode ray tube CRT production to substitute the barrier of manufacturing process complexity among the existing gas ions display board PDP.Shadow mask plasma display three primary colors fluorescent powder layer is coated on the inwall of work shadow cover by array successively, realize so selectively applying, and must cooperate with work shadow cover with mask shadow-mask.The pitch of masking shadow mask and work shadow cover is consistent in vertical direction, and horizontal direction mask shadow-mask pitch is three times of work shadow cover.When two shadow masks are fitted and wherein behind the aligning of the same colour, other dichromatism is blocked, and so just can realize the selective spray phosphor powder layer.Spray other dichromatism in like manner, as long as with two shadow mask relative position skew one row.
Mask shadow-mask and work shadow cover are the hundreds of thousands that forms by precision exposure etching technics on the thick thin steel band of the 0.15mm hole matrix figures to millions of given shapes, particular arrangement.Will evenly the certain thickness three fluorescence bisque difficulty of coating be very big to the aperture inwall of millions of given shapes, particular arrangement at this hundreds of thousands, existing manufacturing technique is: mask shadow-mask with directly be adsorbed on spraying absorption magnetic sheet framework after work shadow cover is aimed at according to required spraying primary colours selectivity on carry out spraying operation, this two aspect problems just may occur: the one, and the magnetic powder material of making rubber absorption magnetic sheet exists in some zonules of whole magnetic sheet disperses uneven phenomenon, and it is inhomogeneous then will correspondingly Distribution of Magnetic Field to occur in these zonules.Phosphor material powder is become to be grouped into by rare earth oxide, and magnetic field can produce magneticaction to some metallic elements in the rare earth oxide, and the Distribution of Magnetic Field situation will exert an influence to the fluorescent powder paste material adhesion condition that is become to be grouped into by rare earth oxide like this.If the adsoption-magnetic field skewness, the adhesion condition uniformity of fluorescent powder paste material is also poor when then applying.The 2nd, the slurry of atomizing does not have other space again and can adhere to except adsorbing on the magnetic sheet attached to mask shadow-mask, work shadow cover inner wall layer and rubber.Slurry part beyond adhering to may contact the gap leakage of intersection to work shadow cover with rubber absorption magnetic sheet, cause work shadow cover aperture air channel to stop up; The atomized slurry that another part kinetic energy is big can oppositely eject after touching bottom rubber absorption magnetic sheet, the fine and close level and smooth phosphor powder layer part particle that has applied formation is before destroyed, the consequence that causes is that the final phosphor powder layer that forms is not fine and close, unsmooth, and last powder amount also decreases, and this all has bigger harmful effect to luminosity and luminous uniformity.The final major part of atomized slurry particle of a small amount of bounce-back all can be scattered in the environment of operation room, and this brings certain harm also can for operating personnel's physical and mental health and relevant implement.Therefore, the magnetic that the method for existing work shadow cover inner wall layer sprayed with fluorescent powder can't reach rubber absorption magnetic sheet is evenly distributed, can't guarantees the final phosphor powder layer densification that forms, level and smooth, last powder amount height, luminosity and luminous high conformity, operating personnel can't be ensured to the working healthily environment requirement, the existing needs of producing can not be satisfied.
Summary of the invention
The objective of the invention is to propose the method that a kind of bottom mat mask shadow-mask is aimed at spraying at oppositely launching problem owing to the adsoption-magnetic field skewness causes fluorescent material to adhere to poor, the liquid slurry of uniformity to work shadow cover aperture air channel seepage and a small amount of big atomized slurry of kinetic energy in the existing large scale shadow mask plasma display three primary colors fluorescent powder coating process.
Technical scheme of the present invention is:
1, a kind of bottom mat mask shadow-mask is aimed at the method for spraying, it is characterized in that it may further comprise the steps:
A. some groups of locating holes all are set mutatis mutandis glass plate, glass plate, work shadow cover, upper strata being selected on look masking shadow mask and the bottom institute mat mask shadow-mask frame relevant position, every group of locating hole is made up of three mating holes, and the distance in distance between three mating holes and the work shadow cover grid hole between the three primary colors is complementary;
B. with clean mutatis mutandis glass plate is placed on the alignment tool bracing frame of surface treatment, bottom institute mat mask shadow-mask, work shadow cover and upper strata select look masking shadow mask macropore face all and the mating holes location point is consistent is placed on successively on the mutatis mutandis glass plate up;
C. aim in the corresponding mating holes of taper pin coupling insertion pre-spray primary colours for six, get the glass plate mating holes and mate the top that is placed on three shadow masks, aiming at locking device with six groups after the placement installs, by the acting in conjunction of mating holes, aligning taper pin and locking device, then bottom institute mat mask shadow-mask, work shadow cover and upper strata select the look masking shadow mask to finish corresponding primary colours selectivity aligning and locking process on to mutatis mutandis glass plate;
D. then by twice upset, select the look masking shadow mask from mutatis mutandis glass plate being forwarded on the spraying absorption magnetic sheet framework on bottom institute mat mask shadow-mask, work shadow cover and upper strata, bottom institute mat mask shadow-mask, work shadow cover, upper strata select look masking shadow mask and rubber absorption magnetic sheet to finish aligning, adsorption process at this moment;
E. the spraying of above-mentioned bottom institute mat mask shadow-mask, work shadow cover, upper strata of finishing aligning, absorption being selected look masking shadow mask, rubber absorption magnetic sheet and spraying absorption magnetic sheet framework to pack into to carry out corresponding primary colours fluorescent material in the water curtain case, separate and oven dry;
F. work shadow cover oven dry back repeating step b～e all finishes spraying, separates and oven dry until three primary colors fluorescent powder, and the work shadow cover flowing water that will spray three primary colors fluorescent powder then is to the next procedure sintering.
2, to select outward appearance, material, pass size and the pitch size of look masking shadow mask all consistent be that two shadow masks are with a kind of shadow mask bottom of the present invention institute mat mask shadow-mask and upper strata, and bottom institute's mat mask shadow-mask and upper strata select look to be the pure iron material with masking shadow mask.
Beneficial effect of the present invention:
1, the present invention is by mat mask shadow-mask conduction of bottom institute and the formed magnetic field of even distribution rubber absorption magnetic sheet, become the three-color phosphor slurry adhesion condition be grouped into to improve by rare earth oxide with the distribute improvement of uniformity situation of adsoption-magnetic field, particularly improve more obvious in the bigger zonule of some Distribution of Magnetic Field difference, significantly improved final formation phosphor powder layer adhere to uniformity, improved the white effect of display screen.
2, the present invention sets up spatial accommodation by bottom institute mat mask shadow-mask between rubber absorption magnetic sheet and work shadow cover, liquid slurry unnecessary when spraying can be long-pending in the slotted eye space content of bottom institute mat mask shadow-mask, and can directly not contact the slit of junction to work shadow cover aperture face air channel seepage with rubber absorption magnetic sheet by work shadow cover, effectively keep the aperture air channel unobstructed, can significantly improve the efficient of follow-up pump drainage gas operation.
3, the present invention sets up spatial accommodation by bottom institute mat mask shadow-mask between rubber absorption magnetic sheet and work shadow cover; can alleviate the rebound effect of the big atomized slurry of a small amount of kinetic energy; pulp particle bounce-back quantity reduces and both had been beneficial to the phosphor powder layer that protection applied formation and is not damaged, and can alleviate the pollution to the operation room environment again.
4, to select the look masking shadow mask with the upper strata be that two kinds of mask shadow-masks all can reclaim use with a kind of shadow mask to bottom institute's mat mask shadow-mask of adopting of the present invention.Therefore bottom mat mask shadow-mask is aimed at the method that sprays can not increase production cost, but can improve the product quality and the production efficiency of shadow mask plasma display.
Description of drawings
Fig. 1 is the structural representation that bottom of the present invention institute mat mask shadow-mask, work shadow cover and upper strata select the look masking shadow mask to place successively.
Fig. 2 is that look masking shadow mask align structures schematic diagram on glass plate is selected on bottom of the present invention institute mat mask shadow-mask, work shadow cover and upper strata.
Fig. 3 is that the structural representation of look masking shadow mask on spraying absorption magnetic sheet framework selected on bottom of the present invention institute mat mask shadow-mask, work shadow cover and upper strata.
Fig. 4 adopts method of the present invention to aim at spraying back work shadow cover and mask shadow-mask inwall phosphor powder layer adhesion condition schematic diagram.
Fig. 5 is work shadow cover spraying of the present invention, oven dry and separates back inwall phosphor powder layer adhesion condition schematic diagram.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing 1-5 and embodiment.
A kind of bottom mat mask shadow-mask is aimed at the method for spraying, and it may further comprise the steps:
A. some groups of locating holes all are set mutatis mutandis glass plate 1, glass plate, work shadow cover 2, upper strata being selected on look masking shadow mask 3 and the bottom institute mat mask shadow-mask 4 frame relevant positions, every group of locating hole is made up of three mating holes 5, and the distance in distance between three mating holes 5 and work shadow cover 2 grid holes between the three primary colors is complementary;
B. with clean mutatis mutandis glass plate 1 is placed on the alignment tool bracing frame of surface treatment, bottom institute mat mask shadow-mask 4, work shadow cover 2 and upper strata select look masking shadow mask 3 macropore faces all and the mating holes location point is consistent is placed on successively on the mutatis mutandis glass plate 1 up;
C. aim in the corresponding mating holes 5 of taper pin 6 coupling insertion pre-spray primary colours for six, get the glass plate mating holes and mate the top that is placed on three shadow masks, aiming at locking device with six groups after the placement installs, by the acting in conjunction of mating holes 5, aligning taper pin 6 and locking device, then bottom institute mat mask shadow-mask 4, work shadow cover 2 and upper strata select look masking shadow mask 3 to finish corresponding primary colours selectivity aligning and locking process on to mutatis mutandis glass plate 1;
D. then by 180 ° of programs of twice upset, select look masking shadow mask 3 from mutatis mutandis glass plate 1 being forwarded on the spraying absorption magnetic sheet framework 7 on bottom institute mat mask shadow-mask 4, work shadow cover 2 and upper strata, bottom institute mat mask shadow-mask 4, work shadow cover 2, upper strata select look masking shadow mask 3 and rubber absorption magnetic sheet 8 to finish aligning, adsorption process at this moment;
E. the spraying of above-mentioned bottom institute mat mask shadow-mask 4, work shadow cover 2, upper strata of finishing aligning, absorption being selected look masking shadow mask 3, rubber absorption magnetic sheet 8 and spraying absorption magnetic sheet framework 7 to pack into to carry out corresponding primary colours fluorescent material in the water curtain case, separate and oven dry;
F. work shadow cover 2 oven dry back repeating step b～e all finish spraying, separate and oven dry until three primary colors fluorescent powder, and work shadow cover 2 flowing water that will spray three primary colors fluorescent powder then are to the next procedure sintering.
It is that two shadow masks are with a kind of shadow mask that bottom of the present invention institute mat mask shadow-mask 4 and upper strata select outward appearance, material, pass size and the pitch size of look masking shadow mask 3 all consistent, and bottom institute mat mask shadow-mask 4 and upper strata select look to be the pure iron material with masking shadow mask 3.
During concrete enforcement:
At first, some groups of locating holes all are set mutatis mutandis glass plate 1, glass plate, work shadow cover 2, upper strata being selected on look masking shadow mask 3 and the bottom institute mat mask shadow-mask 4 frame relevant positions, every group of locating hole is made up of three mating holes 5, and the distance in distance between three mating holes 5 and work shadow cover 2 grid holes between the three primary colors is complementary; As shown in Figure 1: be that bottom of the present invention institute mat mask shadow-mask, work shadow cover and upper strata select look with mask shadow-mask displacement structure schematic diagram successively.Then, with clean mutatis mutandis glass plate 1 is placed on the alignment tool bracing frame of surface treatment, bottom institute mat mask shadow-mask 4, work shadow cover 2 and upper strata select look masking shadow mask 3 macropore faces all and the mating holes location point is consistent is placed on successively on the mutatis mutandis glass plate 1 up; Aiming at taper pin 6 couplings for six inserts in the corresponding mating holes 5 of pre-spray primary colours, get the glass plate mating holes and mate the top that is placed on three shadow masks, aiming at locking device with six groups after the placement installs, by the acting in conjunction of mating holes 5, aligning taper pin 6 and locking device, select look masking shadow mask 3 on to mutatis mutandis glass plate 1, to finish corresponding primary colours selectivity aligning and locking process on bottom institute mat mask shadow-mask 4, work shadow cover 2 and upper strata; As shown in Figure 2: be that above-mentioned three shadow masks of the present invention are placed on successively on the mutatis mutandis glass plate, and by mating holes set on shadow mask and the glass plate frame and aim at the structural representation that taper pin carries out alignment function.Then by 180 ° of programs of twice upset, select look masking shadow mask 3 from mutatis mutandis glass plate 1 being forwarded on the spraying absorption magnetic sheet framework 7 on bottom institute mat mask shadow-mask 4, work shadow cover 2 and upper strata, bottom institute mat mask shadow-mask 4, work shadow cover 2, upper strata select look masking shadow mask 3 and rubber absorption magnetic sheet 8 to finish aligning, adsorption process at this moment, as shown in Figure 3: be that three shadow masks of the present invention are finished the aligning back by the carryover preface that turns upside down is transferred to structural representation on the absorption framework on the aligning glass plate.The spraying that above-mentioned bottom institute mat mask shadow-mask 4, work shadow cover 2, upper strata of finishing aligning, absorption selected look masking shadow mask 3, rubber absorption magnetic sheet 8 and spraying absorption magnetic sheet framework 7 to pack into to carry out corresponding primary colours fluorescent material in the water curtain case, separate and oven dry; As shown in Figure 4: be that the present invention adopts bottom mat mask shadow-mask to aim at spraying back work shadow cover and mask shadow-mask inwall phosphor powder layer adhesion condition schematic diagram.As shown in Figure 5: be that work shadow cover of the present invention separates back work shadow cover inwall phosphor powder layer adhesion condition schematic diagram with masking shadow mask spraying oven dry.The above step of work shadow cover 2 oven dry back repeating steps is all finished spraying, is separated and oven dry until three primary colors fluorescent powder, and work shadow cover 2 flowing water that will spray three primary colors fluorescent powder then are to the next procedure sintering.
Embodiment one
A. some groups of locating holes all are set mutatis mutandis glass plate 1, glass plate, work shadow cover 2, upper strata being selected on look masking shadow mask 3 and the bottom institute mat mask shadow-mask 4 frame relevant positions, every group of locating hole is made up of three mating holes 5, and the distance in distance between three mating holes 5 and work shadow cover 2 grid holes between the three primary colors is complementary;
B. with clean mutatis mutandis glass plate 1 is placed on the alignment tool bracing frame of surface treatment, bottom institute mat mask shadow-mask 4, work shadow cover 2 and upper strata select look masking shadow mask 3 macropore faces all and consistent being placed on successively on the mutatis mutandis glass plate 1 of aligned position point up;
C. aim in the corresponding mating holes 5 of taper pin 6 coupling insertion pre-spray primary colours for six, get the glass plate mating holes and mate the top that is placed on three shadow masks, aiming at locking device with six groups after the placement installs, acting in conjunction by mating holes 5, aligning taper pin 6 and locking device, select look masking shadow mask 3 on to mutatis mutandis glass plate 1, corresponding primary colours to be carried out selectivity aligning, locking then on bottom institute mat mask shadow-mask 4, work shadow cover 2 and upper strata;
D. placement rubber adsorbs magnetic sheet 8 and compresses on the glass plate above three shadow masks, rubber absorption magnetic sheet 8 sucks by upper strata glass plate and work shadow cover 2, look masking shadow mask 3 is selected on the glass plate on bottom institute mat mask shadow-mask 4, work shadow cover 2, upper strata of locking and upper strata and the rubber absorption magnetic sheet 8 that compresses relays on the spraying absorption magnetic sheet framework 7 tipping together with aiming at, and selects look masking shadow mask 3 and rubber absorption magnetic sheet 8 to finish aligning, adsorption process by 180 ° of program bottom institutes of twice upset mat mask shadow-mask 4, work shadow cover 2, upper strata;
E. the spraying of above-mentioned bottom institute mat mask shadow-mask 4, work shadow cover 2, upper strata of finishing aligning, absorption being selected glass plate, the rubber absorption magnetic sheet 8 on look masking shadow mask 3, upper strata and spraying absorption magnetic sheet framework 7 to pack into to carry out corresponding primary colours fluorescent material in the water curtain case, separate and oven dry;
F. work shadow cover 2 oven dry back repeating step b～e all finish spraying, separate and oven dry until three primary colors fluorescent powder, and work shadow cover 2 flowing water that will spray three primary colors fluorescent powder then are to the next procedure sintering.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (2)
1, a kind of bottom mat mask shadow-mask is aimed at the method for spraying, it is characterized in that it may further comprise the steps:
A. some groups of locating holes all are set in that mutatis mutandis glass plate (1), glass plate, work shadow cover (2), upper strata are selected on look masking shadow mask (3) and bottom institute mat mask shadow-mask (4) the frame relevant position, every group of locating hole is made up of three mating holes (5), and the distance in distance between three mating holes (5) and work shadow cover (2) grid hole between the three primary colors is complementary;
B. with clean mutatis mutandis glass plate (1) is placed on the alignment tool bracing frame of surface treatment, bottom institute mat mask shadow-mask (4), work shadow cover (2) and upper strata select look masking shadow mask (3) macropore face all and the mating holes location point is consistent is placed on successively on the mutatis mutandis glass plate (1) up;
C. aim in taper pin (6) the coupling insertion pre-spray corresponding mating holes of primary colours (5) for six, get the glass plate mating holes and mate the top that is placed on three shadow masks, aiming at locking device with six groups after the placement installs, by the acting in conjunction of mating holes (5), aligning taper pin (6) and locking device, then bottom institute mat mask shadow-mask (4), work shadow cover (2) and upper strata select look masking shadow mask (3) to finish corresponding primary colours selectivity aligning and locking process on to mutatis mutandis glass plate (1);
D. then by twice upset, select look masking shadow mask (3) from mutatis mutandis glass plate (1) being forwarded on the spraying absorption magnetic sheet framework (7) on bottom institute mat mask shadow-mask (4), work shadow cover (2) and upper strata, bottom institute's mat mask shadow-mask (4), work shadow cover (2), upper strata select look masking shadow mask (3) and rubber absorption magnetic sheet (8) to finish aligning, adsorption process at this moment;
E. above-mentioned bottom institute mat mask shadow-mask (4), work shadow cover (2), upper strata of finishing aligning, absorption selected look masking shadow mask (3), rubber absorption magnetic sheet (8) and spraying adsorb magnetic sheet framework (7) pack into the spraying of carrying out corresponding primary colours fluorescent material in the water curtain case, separate and oven dry;
F. work shadow cover (2) oven dry back repeating step b～e all finishes spraying, separates and oven dry until three primary colors fluorescent powder, and work shadow cover (2) flowing water that will spray three primary colors fluorescent powder then is to the next procedure sintering.
2, a kind of bottom mat mask shadow-mask according to claim 1 is aimed at the method for spraying, it is characterized in that it is that two shadow masks are with a kind of shadow mask that described bottom institute's mat mask shadow-mask (4) and upper strata select the outward appearance of look masking shadow mask (3), material, pass size and pitch size all consistent, and bottom institute mat mask shadow-mask (4) and upper strata select look to be the pure iron material with masking shadow mask (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102348080A CN101422773B (en) | 2008-11-18 | 2008-11-18 | Bottom mat mask shadow-mask aligned spray-painting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102348080A CN101422773B (en) | 2008-11-18 | 2008-11-18 | Bottom mat mask shadow-mask aligned spray-painting method |
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| Publication Number | Publication Date |
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| CN101422773A true CN101422773A (en) | 2009-05-06 |
| CN101422773B CN101422773B (en) | 2011-07-13 |
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| CN2008102348080A Expired - Fee Related CN101422773B (en) | 2008-11-18 | 2008-11-18 | Bottom mat mask shadow-mask aligned spray-painting method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882663A (en) * | 2010-06-22 | 2010-11-10 | 深圳市瑞丰光电子股份有限公司 | Spraying method of LED fluorescent powder and fluorescent powder layer sprayed by adopting same |
| CN102011088A (en) * | 2010-12-01 | 2011-04-13 | 东莞宏威数码机械有限公司 | Mask adsorption structure and method for attaching mask |
| CN102264544A (en) * | 2009-05-26 | 2011-11-30 | 株式会社Ihi | Alignment stage |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314069C (en) * | 2004-04-30 | 2007-05-02 | 东南大学 | A plasma display panel |
| CN100511555C (en) * | 2007-04-26 | 2009-07-08 | 南京华显高科有限公司 | Method for finishing jointing counterpoint between working shadow mask and mask shadow quickly and accurately |
| CN100530496C (en) * | 2007-10-23 | 2009-08-19 | 南京华显高科有限公司 | Method for realizing quick close contact between the masking shade cover and working shade cover |
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2008
- 2008-11-18 CN CN2008102348080A patent/CN101422773B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102264544A (en) * | 2009-05-26 | 2011-11-30 | 株式会社Ihi | Alignment stage |
| CN101882663A (en) * | 2010-06-22 | 2010-11-10 | 深圳市瑞丰光电子股份有限公司 | Spraying method of LED fluorescent powder and fluorescent powder layer sprayed by adopting same |
| CN102011088A (en) * | 2010-12-01 | 2011-04-13 | 东莞宏威数码机械有限公司 | Mask adsorption structure and method for attaching mask |
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| CN101422773B (en) | 2011-07-13 |
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