CN101339876B - Sealing method of shadow mask type plasma display screen - Google Patents
Sealing method of shadow mask type plasma display screen Download PDFInfo
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- CN101339876B CN101339876B CN200810021384XA CN200810021384A CN101339876B CN 101339876 B CN101339876 B CN 101339876B CN 200810021384X A CN200810021384X A CN 200810021384XA CN 200810021384 A CN200810021384 A CN 200810021384A CN 101339876 B CN101339876 B CN 101339876B
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- shadow mask
- sealing
- display screen
- contraposition
- plasma display
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Abstract
A seaming method of an aperture mask type plasma display screen is characterized in that before a sealed screen is sintered, a base plate (1) and an aperture mask (3) are firstly aligned with each other accurately to form a combination body (4), and then a back placode plate (2) is precisely aligned with the combination body; four corners of the base plate takes an alignment mark for accurate alignment, and the periphery is clamped by a seaming clip, and the central position of the back placode (2) is applied a stress object (6) with certain parameter; finally, the seaming is completed, so as to carry out high temperature sintering. The center of a panel is provided with the stress object with proper parameter when the screen is sealed in the method, certain fixation effect is generated on the aperture mask (3), so that the aperture mask (3) is recovered to the original alignment state after expansion or contraction in the process of high temperature seaming, and no shift is generated, thus having the effect of accurate alignment and improving the precision of the aperture mask type seaming technique.
Description
Technical field
The present invention relates to a kind of manufacture method of plasma panel, especially a kind of method for sealing of display screen, specifically a kind of method for sealing of realizing the shadow mask type plasma display screen of accurate contraposition.
Background technology
At present, in the manufacture craft of shadow mask type plasma display screen, independent processing metal web plate, and make fluorescent material thereon, after forward and backward substrate manufacture finishes, above-mentioned three parts are carried out high intermediate temperature sealing with the frit seal material, carry out bakeout degassing then, charge into suitable working gas after vacuum degree acquires a certain degree, promptly finished the making of screen.
According to the principle of luminosity of shadow mask type plasma display screen, metal shadow mask constitutes discharge cell jointly with front-back baseboard in shadow mask type plasma display screen.The row electrode of the column electrode of prebasal plate, metacoxal plate should place shadow mask hole respectively in the sealing-in process of display screen.But, in the process of high intermediate temperature sealing since temperature above 400 ℃, and the thermal coefficient of expansion of front-back baseboard glass and shadow mask is inconsistent, cause the shadow mask discontinuity, finally can make in temperature and be reduced to the displacement of room temperature back shadow mask, produce deviation with aiming at of front-back baseboard, thereby have influence on the service behaviour of discharge cell, reduced the precision of shadow mask process for sealing.
Summary of the invention
Main purpose of the present invention can not effectively be avoided the displacement of shadow mask at existing method for sealing, cause forward and backward substrate and shadow mask to produce the problem of deviation of the alignment, the method for sealing of shadow mask type plasma display screen simple in a kind of actual production is provided, can effectively avoid the displacement of shadow mask in the sealing-in process, make it to realize accurate contraposition with front-back baseboard.
The technical solution used in the present invention is:
A kind of method for sealing of shadow mask type plasma display screen is characterized in that it may further comprise the steps:
A. the upper surface of prebasal plate and shadow mask is fitted, carry out contraposition, by light microscope or have the mesh array alignment of the monitor of CCD system, with magnetic material prebasal plate and shadow mask are fixed the formation assembly then electrod-array and the shadow mask of prebasal plate;
B. assembly and metacoxal plate are carried out contraposition, assembly and metacoxal plate that prebasal plate and shadow mask form are fixed with mechanical system respectively, by light microscope or the monitor that has a CCD system contraposition sign of four jiaos of prebasal plates is aimed at the contraposition sign of four jiaos of metacoxal plates, clamp with sealing-in all around, form and treat the sealing-in display screen;
C. according to the area size of institute's sealing-in display screen, apply the weight thing in the center of metacoxal plate, the weight range of the weight thing that is applied is 9N～200N;
D. high temperature sintering will treat that the sealing-in display screen sends into sintering furnace, set sintering temperature and time, the article on plasma display screen carry out high intermediate temperature sealing.
The method for sealing of shadow mask type plasma display screen of the present invention is characterized in that the described weight thing that applies adopts one or more supports, and supporter can be cylindric metal derby.
The method for sealing of shadow mask type plasma display screen of the present invention is characterized in that described contraposition sign can be two annular contraposition signs or tetragonal contraposition sign.
Beneficial effect of the present invention:
1, the present invention is according to the area of institute's sealing-in display screen, set the parameter of weight thing and apply mode, apply suitable weight thing in face plate center during by the envelope screen, shadow mask is produced certain fixation, make in the high intermediate temperature sealing process of shadow mask and return to original alignment through behind the rising-heat contracting-cold, can not produce displacement, overcome the inconsistent possible displacement that causes of shadow mask and glass substrate thermal coefficient of expansion effectively, realize the accurate contraposition of shadow mask and front-back baseboard, improved the precision of shadow mask process for sealing.
2, this is simple aborning, is convenient to control cost.
Description of drawings
Fig. 1 is one of manufacture method schematic diagram of shadow mask type plasma display screen sealing-in.
Fig. 2 be the shadow mask type plasma display screen sealing-in the manufacture method schematic diagram two.
Fig. 3 is the schematic diagram that prebasal plate and shadow mask contraposition form assembly.
Fig. 4 is the tetragonal contraposition sign schematic diagram of shadow mask type plasma display screen sealing-in.
Fig. 5 is two annular contraposition sign schematic diagrames of shadow mask type plasma display screen sealing-in.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing 1-5 and embodiment.
A kind of method for sealing of shadow mask type plasma display screen is characterized in that it may further comprise the steps:
A. the prebasal plate 1 and the upper surface of shadow mask 3 are fitted, carry out contraposition, by light microscope or the monitor that has a CCD system mesh array alignment with electrod-array 5 with the shadow mask 3 of prebasal plate 1, with magnetic material that prebasal plate 1 is fixing with shadow mask 3 then, form assembly 4;
B. assembly 4 and metacoxal plate 2 are carried out contraposition, prebasal plate 1 is fixed with mechanical system respectively with assembly 4 and metacoxal plate 2 that shadow mask 3 forms, by light microscope or the monitor that has a CCD system contraposition sign 9 of 1 four jiaos of prebasal plates is aimed at the contraposition sign of 2 four jiaos of metacoxal plates, clamp with sealing-in folder 8 all around, form and treat the sealing-in display screen;
C. according to the area size of institute's sealing-in display screen, apply weight thing 6 in the center of metacoxal plate 2, the weight range of the weight thing 6 that is applied is 9N～200N;
D. high temperature sintering will treat that the sealing-in display screen sends into sintering furnace, set sintering temperature and time, the article on plasma display screen carry out high intermediate temperature sealing.
During concrete enforcement:
Embodiment one:
Utilize said method to finish the sealing-in of 42 cun shadow mask type plasma display screens.Shown in Fig. 1,4: with four cylindric metal derby 7 supporters and tetragonal contraposition sign 9 is example, and it may further comprise the steps,
A. prebasal plate 1 and shadow mask 3 contrapositions are fitted the prebasal plate 1 and the upper surface of shadow mask 3, and be with magnetic material that prebasal plate 1 is fixing with shadow mask 3 then by the mesh array alignment of light microscope with electrod-array 5 with the shadow mask 3 of prebasal plate 1, forms assembly 4;
B. assembly 4 and metacoxal plate 2 contrapositions, prebasal plate 1 is fixed with mechanical system respectively with assembly 4 and metacoxal plate 2 that shadow mask 3 forms, by light microscope the tetragonal contraposition sign of 1 four jiaos of prebasal plates is aimed at the tetragonal contraposition sign 9 of 2 four jiaos of metacoxal plates, clamp with sealing-in folder 8 all around, form and treat the sealing-in display screen;
C. be 42 cun according to institute's sealing-in display screen, apply weight thing 6 in the center of metacoxal plate 2, setting weight 6 parameters is 90N, and weight thing 6 is supported by four cylindric metal derbies 7;
D. high temperature sintering will treat that the sealing-in display screen sends into firing furnace, set 450 ℃ of sintering temperatures, and sintering time is four hours, finishes the high intermediate temperature sealing of plasma panel.
Embodiment two:
Utilize said method to finish the sealing-in of 34 cun shadow mask type plasma display screens.Shown in Fig. 2,4: with three cylindric metal derby 7 supporters and tetragonal contraposition sign 9 is example, and it may further comprise the steps,
Step a, b are with step a, the b of embodiment one;
C. be 34 cun according to institute's sealing-in display screen, apply weight thing 6 in the center of metacoxal plate 2, setting weight thing 6 parameters is 60N, and weight thing 6 is supported by three cylindric metal derbies 7.
Steps d is with the steps d of embodiment one.
Embodiment three:
Utilize said method to finish the sealing-in of 42 cun shadow mask type plasma display screens, shown in Fig. 1,5: be masked as example with four cylindric metal derby 7 supporters and two annular contraposition, it may further comprise the steps,
Step a is with the step a of embodiment one;
B. assembly 4 and metacoxal plate 2 contrapositions, prebasal plate 1 is fixed with mechanical system respectively with assembly 4 and metacoxal plate 2 that shadow mask 3 forms, by light microscope two annular contraposition signs of 1 four jiaos of prebasal plates are aimed at two annular contraposition signs of 2 four jiaos of metacoxal plates, clamped with sealing-in folder 8 all around.
Step c, d are with step c, the d of embodiment one.
Claims (3)
1. the method for sealing of a shadow mask type plasma display screen is characterized in that it may further comprise the steps:
A. the prebasal plate (1) and the upper surface of shadow mask (3) are fitted, carry out contraposition, by light microscope or have the mesh array alignment of the monitor of CCD system with electrod-array (5) Yu the shadow mask (3) of prebasal plate (1), with magnetic material that prebasal plate (1) and shadow mask (3) is fixing then, form assembly (4);
B. assembly (4) and metacoxal plate (2) are carried out contraposition, prebasal plate (1) is fixed with mechanical system respectively with assembly (4) and metacoxal plate (2) that shadow mask (3) forms, by light microscope or the monitor that has a CCD system contraposition sign (9) of (1) four jiao of prebasal plate is aimed at the contraposition sign of (2) four jiaos of metacoxal plates, clamp with sealing-in folder (8) all around, form and treat the sealing-in display screen;
C. according to the area size of institute's sealing-in display screen, apply weight thing (6) in the center of metacoxal plate (2), the weight range of the weight thing (6) that is applied is 9N～200N;
D. high temperature sintering will treat that the sealing-in display screen sends into sintering furnace, set sintering temperature and time, the article on plasma display screen carry out high intermediate temperature sealing.
2. according to the method for sealing of the described shadow mask type plasma display screen of claim 1, it is characterized in that the described weight thing (6) that applies adopts one or more supports, supporter is cylindric metal derby (7).
3. according to the method for sealing of the described shadow mask type plasma display screen of claim 1, it is characterized in that described contraposition is masked as two annular contraposition signs or tetragonal contraposition sign.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021384XA CN101339876B (en) | 2008-08-04 | 2008-08-04 | Sealing method of shadow mask type plasma display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021384XA CN101339876B (en) | 2008-08-04 | 2008-08-04 | Sealing method of shadow mask type plasma display screen |
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| Publication Number | Publication Date |
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| CN101339876A CN101339876A (en) | 2009-01-07 |
| CN101339876B true CN101339876B (en) | 2011-07-13 |
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| CN200810021384XA Expired - Fee Related CN101339876B (en) | 2008-08-04 | 2008-08-04 | Sealing method of shadow mask type plasma display screen |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101800141B (en) * | 2010-04-27 | 2011-10-05 | 东南大学 | Method for sealing ultra-thin shadow mask plasma display |
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Granted publication date: 20110713 Termination date: 20120804 |