CN1290787C - Method for making glass rear cover of organic electroluminescence display - Google Patents
Method for making glass rear cover of organic electroluminescence display Download PDFInfo
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- CN1290787C CN1290787C CN 200410052413 CN200410052413A CN1290787C CN 1290787 C CN1290787 C CN 1290787C CN 200410052413 CN200410052413 CN 200410052413 CN 200410052413 A CN200410052413 A CN 200410052413A CN 1290787 C CN1290787 C CN 1290787C
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Abstract
The present invention discloses a method for fabricating a glass back cover of an organic electroluminescent display. The fabricating method comprises the following steps: firstly, glass plates (10) are washed, and an etching resisting protection film (7) with stickiness on a single side is stuck on the front side of each glass plate (10); then laser is used for cutting etched patterns, with the protection films (7) in the patterns removed; after two glass plates with the etched patterns are stuck back to back, and the jointing edges round the glass plates are sealed, an etching solution is used for etching to a required depth; then the protection film (7) on the surface of each glass plate (10), and the two glass plates (10) are separated from each other and are cut; thus, the glass back cover (2) of the organic electroluminescent display can be formed. With the advantages of low cost, high efficiency and high precision, the fabrication method of the present invention can be applied to the industries of glass carving, automobile glass etching, etc. as well as to the organic electroluminescent display.
Description
Technical field
The present invention relates to a kind of making method of display of organic electroluminescence, relate in particular to the making method of its glass back cover.
Background technology
Display of organic electroluminescence is present emerging a kind of flat-panel monitor, because of it has active illuminating, the contrast gradient height, the energy slimming, the plurality of advantages that response speed is fast, be acknowledged as the main force of indicating meter of future generation, its principle of luminosity is the extremely thin luminous organic material of deposition between two electrodes, this luminous organic material is passed to direct current make it luminous.
In display of organic electroluminescence, meet oxygen and lost efficacy easily because luminous organic material is met water, thereby the glass substrate of its front must add bonnet and encapsulate, so that isolated aqueous vapor oxygen, prolong the work-ing life of indicating meter.Mainly be to adopt metal back cover, glass back cover or film to encapsulate at present, wherein, metal back cover makes the device distortion easily because of different with the coefficient of expansion of glass, and the die cost height of making, and metal back cover is just eliminated gradually; And thin-film package does not also reach the level of practicability; What use at most at present is glass back cover.To the requirement of this glass back cover be will be on flat glass the smooth groove in etching bottom so that load siccative in groove, the high-precision register guide of etching simultaneously is so that fit with the flat glass protecgulum contraposition of indicating meter.
The general making method of present this glass back cover is: earlier at the thicker anti-etching protective membrane of the front and rear surfaces printing of sheet glass; then the wherein one side of glass paint out need the groove pattern of etching and remove protective membrane in this pattern after; place etching solution to etch groove, remove the protective membrane of glass surface at last.Adopt this processing method, on the one hand, the groove pattern precision of making is low, and particularly register guide does not often reach the requirement of fitting with the contraposition of flat glass protecgulum high precision during encapsulation; Sticking of described on the other hand protective membrane and glass is bad, comes off easily, and requires double spread at glass, remove two-sided protective membrane again after etching groove, thereby production efficiency is low and cost is high, also is easy to generate the problem of distortion for thin glass.
Existing another kind of making method is to use the method for photoetching to make high-precision etching pattern; using this method needs at the last layer photosensitivity anti-etching shielding layer that is coated with on glass; need in advance at glass surface evaporation one coat of metal for this reason; described photosensitivity anti-etching shielding layer just can invest glass surface and difficult drop-off securely; in addition pattern etch good after; also need use harsh dose this metal level removed, so its technological process is higher relatively than complexity and cost.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of can make high-precision groove and register guide, technology is simple, cost is low and can prevent the making method of the display of organic electroluminescence glass back cover of glass deformation.
The present invention adopts following technical scheme: a kind of making method of display of organic electroluminescence glass back cover, described display glass bonnet are that etching bottom is smooth and can hold the groove of siccative on flat glass; The processing method that etched recesses forms described glass back cover on flat glass comprises the steps:
A, select the sheet glass of suitable size and clean;
B, adhere to the sticking anti-etching protective membrane of one deck single face in the front of clean sheet glass;
C, on anti-etching protective membrane, go out to need etched pattern, and remove the anti-etching protective membrane in the pattern with laser cutting;
D, two sheet glass that form etched pattern through step C are fit together back-to-back, take seal approach the edge of pasting seam is arranged;
E, two sheet glass that fit together back-to-back among the described step D are carried out etching with etching solution, until etching the required degree of depth;
F, remove the anti-etching protective membrane of glass pane surface, two sheet glass that fit together are back-to-back separated and by the size of indicating meter cut the glass back cover of described display of organic electroluminescence.
Method with described back-to-back two sheet glass sealing and connection in step D has following two kinds:
The first seals trip edge around back-to-back two sheet glass and connection with the sealant tape of anti-etching liquid.
It two is at the every submarginal local continuity point glue in the sheet glass back side, then two sheet glass is fitted back-to-back and allows adhesive curing.
If adopt above-mentioned second kind of method of attachment, then be size in step F, thereby cut away two sheet glass the edge section that two sheet glass peripheries have glue isolating according to glass back cover.
Half that the etch depth of sheet glass can not surpass thickness of glass among the above-mentioned steps E is to guarantee glass intensity.
The pattern of making among the above-mentioned steps C also comprises the register guide with the glass protecgulum contraposition applying usefulness of indicating meter.
Compare with prior art, the making method of display of organic electroluminescence glass back cover of the present invention has following advantage: adopt the method for laser cutting can produce the high-precision etched pattern that needs, solved the problem that prior art can't be made the high precision register guide simultaneously; Adopting the sticking anti-etching protective membrane of single face not need will be at glass surface evaporation one coat of metal in the picture making method of existing employing photoetching technique, and whole manufacture craft is simpler; Other two glass of making pattern connect back-to-back, and the back side just need not to be coated with protective membrane like this, and two front etchings simultaneously, can prevent glass deformation, the more important thing is and have improved production efficiency more than one times; The indicating meter that adopts making method of the present invention to produce, its production cost only is 1/10th of an existing market price, and also because contraposition is accurate, good seal, thereby work-ing life is also longer.
Description of drawings
Fig. 1 is that two blocks of glass adopt first kind of synoptic diagram of method of attachment back-to-back;
Fig. 2 is that two blocks of glass adopt second kind of synoptic diagram of method of attachment back-to-back;
Fig. 3 is the structural representation of described display of organic electroluminescence.
Embodiment
Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.
As shown in Figure 3, described display of organic electroluminescence is tightly connected by sealing-in glue 9 with the glass back cover 2 of being with groove 21 by flat glass protecgulum 1 and forms, described groove 21 just forms a closed cavity, in described groove 21, be provided with siccative 5, siccative 5 the place aheads are provided with positive and negative two electrodes 3,4, be coated with the luminous organic material layer 6 of thin layer between the two electrode interlayers, it is luminous to pass to direct-current drive by positive and negative electrode 3 and 4 pairs of these luminous organic material layers 6.Of the present invention on flat glass etched recesses form the processing method of described glass back cover, promptly the making method of display of organic electroluminescence glass back cover comprises the steps:
The flat glass plate 10 that A, selection are suitably big or small also cleans;
B, adhere to the sticking anti-etching protective membrane 7 of one deck single face in the front of the flat glass plate 10 that cleans up, for example can adopt common transparent adhesive tape, its thickness is decided on protective membrane 7 anti-etching abilities between 0.1 micron-500 microns, adopts 300 microns thickness in the present embodiment; This protective membrane 7 mainly plays a part anti-etching, has the part of protective membrane 7 can keep out the etching of glass etching liquid, and does not have the part of protective membrane 7 will be etched, forms required groove;
C, on anti-etching protective membrane 7, go out to need etched described groove 21 and be used for profile pattern with the register guide of display plane glass protecgulum 1 contraposition applying usefulness, and tear anti-etching protective membrane 7 in the pattern with mechanical means with laser cutting;
D, two sheet glass that form etched pattern through step C are fit together (as Fig. 1 or Fig. 2) back-to-back, take the measure of being tightly connected the edge of pasting seam is arranged;
E, use the acidic etching liquid that contains fluorion to carry out etching two sheet glass 10 that fit together back-to-back among the above-mentioned steps D, until etching the required degree of depth, but etched depth can not surpass thickness of glass half, to guarantee glass intensity; Because of display of organic electroluminescence positive and negative electrode 3 and 4 and to be clipped in two interelectrode luminous organic material layers 6 extremely thin, so mainly be to determine the needs etched depth according to the thickness of siccative, etched depth as required, etchant concentration and etching mode different, the time of etching 1 minute to 2 hours between; Etching method can be to invade the bubble etching, also can be the spray etching;
F, sticking anti-etching protective membrane 7 removal of sheet glass 10 these layers of surface are clean with organic solvent or mechanical means; and two sheet glass 10 that fit together are back-to-back separated and cut by the size of indicating meter, the glass back cover 2 of described display of organic electroluminescence.
Method with described back-to-back two sheet glass, 10 sealings and connection in above-mentioned steps D has following two kinds:
First kind, as shown in Figure 1, be with the adhesive tape 81 of anti-etching liquid directly will back-to-back two sheet glass 10 around trip edges be tightly connected, before the removal protective membrane, remove then.
Second kind, as shown in Figure 2, be submarginal local continuity point glue 82 at every sheet glass 10 back sides, then two sheet glass 10 are fitted back-to-back and allow glue 82 solidify, make it closely connect two glass sheets, prevent that etching solution from leaking into the inside, corrosion is caused at the sheet glass back side, this connection glue 82 can be that UV solidifies glue, heat curing epoxy glue or dried glue or the like certainly.Adopt this method to connect, the side of sheet glass has a spot of etching, but can be after removing protective membrane, and according to the size of glass back cover 2, directly the method with cutting cuts the edge section that has glue on every side, two sheet glass 10 can be separated simultaneously.
The engraving method of above-mentioned glass can also be applied to other glass industries except that can be applicable to display of organic electroluminescence, in industries such as glass-engraving, vehicle glass etching.
Claims (8)
1, a kind of making method of display of organic electroluminescence glass back cover, described display glass bonnet are that etching bottom is smooth and can hold the groove of siccative on flat glass; It is characterized in that: the processing method that etched recesses forms described glass back cover on flat glass comprises the steps:
The sheet glass (10) that A, selection are suitably big or small also cleans;
B, adhere to the sticking anti-etching protective membrane of one deck single face (7) in the front of clean sheet glass (10);
C, go up with laser cutting at anti-etching protective membrane (7) and to go out to need etched pattern, and remove the anti-etching protective membrane (7) in the pattern;
D, two sheet glass that form etched pattern through step C are fit together back-to-back, take seal approach the edge of pasting seam is arranged;
E, two sheet glass (10) that fit together back-to-back among the described step D are carried out etching with etching solution, until etching the required degree of depth;
F, remove the anti-etching protective membrane (7) on sheet glass (10) surface, two sheet glass (10) separation that fits together back-to-back and by the size of indicating meter cut the glass back cover (2) of described display of organic electroluminescence.
2, the making method of the glass back cover of display of organic electroluminescence according to claim 1 is characterized in that: in step D, described back-to-back two sheet glass (10) are that adhesive tape (81) with anti-etching liquid is with the sealing of its edge and connect.
3, the making method of the glass back cover of display of organic electroluminescence according to claim 1, it is characterized in that: in step D, the seal connecting method of described back-to-back two sheet glass (10) is: at every sheet glass (10) the submarginal local continuity point glue in the back side (82), then two sheet glass (10) are fitted back-to-back and allow adhesive curing.
4, the making method of the glass back cover of display of organic electroluminescence according to claim 3, it is characterized in that: be size in step F according to glass back cover (2), the edge section that directly two sheet glass (10) periphery is had glue cuts away, thereby two sheet glass (10) are isolating.
5, according to the making method of the glass back cover of the arbitrary described display of organic electroluminescence of claim 1 to 4, it is characterized in that: the thickness of anti-etching protective membrane described in the step C (7) is between 0.1 micron-500 microns.
6, according to the making method of the glass back cover of the arbitrary described display of organic electroluminescence of claim 1 to 4, it is characterized in that: the etch depth of sheet glass described in the step e (10) is no more than half of thickness of glass.
7, according to the making method of the glass back cover of the arbitrary described display of organic electroluminescence of claim 1 to 4, it is characterized in that: the pattern of making among the described step C also comprises the register guide with glass protecgulum (1) the contraposition applying usefulness of indicating meter.
8, according to the making method of the glass back cover of the arbitrary described display of organic electroluminescence of claim 1 to 4, it is characterized in that: in the described step F, with an organic solvent or mechanical means anti-etching protective membrane (7) is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052413 CN1290787C (en) | 2004-11-22 | 2004-11-22 | Method for making glass rear cover of organic electroluminescence display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052413 CN1290787C (en) | 2004-11-22 | 2004-11-22 | Method for making glass rear cover of organic electroluminescence display |
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| CN1631828A CN1631828A (en) | 2005-06-29 |
| CN1290787C true CN1290787C (en) | 2006-12-20 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL384490A1 (en) * | 2008-02-18 | 2009-08-31 | Doros Teodora D. A. Glass | Production method of patterned glass assigned mainly for production of collectors and sun batteries and glasshouses |
| CN102020417A (en) * | 2009-09-16 | 2011-04-20 | 昆山汉白精密设备有限公司 | Process for processing glass for electronic product |
| CN102690051A (en) * | 2011-03-25 | 2012-09-26 | 海邦科技股份有限公司 | Device and method for processing glass sheet material |
| KR101914298B1 (en) * | 2011-11-04 | 2018-12-31 | 삼성디스플레이 주식회사 | Apparatus and method for processing glass window of display |
| CN102492920A (en) * | 2011-12-21 | 2012-06-13 | 信利半导体有限公司 | Method for manufacturing mask plate and mask plate |
| CN102673820B (en) * | 2012-04-28 | 2014-07-16 | 广东工业大学 | Automatic tape winder |
| CN103693855A (en) * | 2012-09-27 | 2014-04-02 | 杜邦公司 | Method for etching cutting of glass substrate |
| CN108574750A (en) * | 2018-05-25 | 2018-09-25 | Oppo广东移动通信有限公司 | The manufacturing method of shell, electronic device and shell |
| CN113149449A (en) * | 2021-03-10 | 2021-07-23 | 凯盛科技股份有限公司 | Preparation method of large-size flexible glass |
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| CN1631828A (en) | 2005-06-29 |
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