CN1562841A - Method for fabricating organic electroluminescent display and back cover made from glass - Google Patents
Method for fabricating organic electroluminescent display and back cover made from glass Download PDFInfo
- Publication number
- CN1562841A CN1562841A CNA200410026837XA CN200410026837A CN1562841A CN 1562841 A CN1562841 A CN 1562841A CN A200410026837X A CNA200410026837X A CN A200410026837XA CN 200410026837 A CN200410026837 A CN 200410026837A CN 1562841 A CN1562841 A CN 1562841A
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- Prior art keywords
- glass
- back cover
- etching
- sheet glass
- organic electroluminescence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000011521 glass Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims description 34
- 238000005530 etching Methods 0.000 claims abstract description 50
- 238000005401 electroluminescence Methods 0.000 claims abstract description 28
- 238000001259 photo etching Methods 0.000 claims abstract description 5
- 238000003672 processing method Methods 0.000 claims abstract description 5
- 239000005357 flat glass Substances 0.000 claims description 53
- 239000010410 layer Substances 0.000 claims description 42
- 206010034972 Photosensitivity reaction Diseases 0.000 claims description 16
- 230000036211 photosensitivity Effects 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 10
- 239000011368 organic material Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims 1
- 239000003929 acidic solution Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 2
- 239000003973 paint Substances 0.000 abstract description 2
- 239000011241 protective layer Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006335 epoxy glue Polymers 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The processing method includes following steps: at first to clean glass plate and plate thin transitional layer and paint photonasty anti-corrosion pretecting layer at the obverse side, to remove the transitional and pretecting layers in pattern to make corrosion pattern by photoetching, to fit two glass plates with etched flute pattern together back to back and seal the around edge, then to etch it till required deep by etching solution, to remove the protecting layer and transitional layer at surface of the glass plates and separate the two glass plates, the glass rear lid of organic electroluminescence display is produced.
Description
Technical field
The present invention relates to a kind 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.Present making method is: earlier at the thicker anti-etching protective layer 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 layer in this pattern after; place etching solution to etch groove, remove the protective layer 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 layer and glass is bad, comes off easily, and requires double spread at glass, remove two-sided protective layer 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.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of protective layer difficult drop-off, can makes high-precision groove and register guide, production efficiency height, cost is low and can prevent the making method of glass back cover of the display of organic electroluminescence of glass deformation, and the display of organic electroluminescence that uses the glass back cover that this method makes.
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:
The sheet glass that A, selection are suitably big or small also cleans;
B, plate thin transition layer in the front of clean sheet glass;
C, on described transition layer coating photosensitivity anti-etching shielding layer;
D, on the photosensitivity anti-etching shielding layer, adopt photoetching method to make the required pattern of etched recesses, the sheet glass that is about to have the photosensitivity anti-etching shielding layer places exposure under the ready-formed template, develops, solidifies, form the profile pattern that needs etched described groove, and remove transition layer and photosensitivity anti-etching shielding layer in the pattern;
E, two sheet glass that form the etched recesses pattern through step D are fit together back-to-back, take seal approach the edge of pasting seam is arranged;
F, place etching solution to carry out etching two sheet glass that fit together back-to-back among the above-mentioned steps E, until etching the required degree of depth;
G, the photosensitivity anti-etching shielding layer of removing glass pane surface and metal level and the separation of two sheet glass that fit together back-to-back the glass back cover of described display of organic electroluminescence.
Method with described back-to-back two sheet glass sealing and connection in step e 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 G, thereby cut away two sheet glass the edge section that two sheet glass peripheries have glue isolating according to glass back cover.
A kind of display of organic electroluminescence of using the glass back cover of aforesaid method making, this indicating meter is tightly connected with the glass back cover of being with groove by the flat glass protecgulum and forms, the degree of depth of described groove is less than half of glass back cover thickness, in described sealed groove, siccative is set, siccative the place ahead is provided with positive and negative two electrodes, the extremely thin luminous organic material layer of deposition between the interlayer of positive and negative electrode; It is luminous by positive and negative electrode this luminous organic material layer to be passed to direct-current drive.
Compare with prior art, the making method of the glass back cover of display of organic electroluminescence of the present invention has following advantage: owing to adopted cheap transition layer, protective layer and glass to stick very closely, prevent sag of protecting coating, reduce the thickness of protective layer simultaneously, saved cost; Adopt the method for photoetching 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; Other two glass of making pattern connect back-to-back, the back side just need not to be coated with protective layer like this, and two front etchings simultaneously, can prevent glass deformation, the more important thing is and improved production efficiency more than one times, and its production cost only is 1/5th of an existing market price; The display of organic electroluminescence of the glass back cover that the use aforesaid method is made is accurate owing to contraposition, 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, display of organic electroluminescence glass back cover 2 is that etching bottom is smooth and can hold the groove 21 of siccative 5 on flat glass, encapsulation display of organic electroluminescence positive and negative electrode 3 and 4, is clipped in two interelectrode 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, plate the extremely thin transition layer of one deck 11 in the front of the flat glass plate 10 that cleans up, described transition layer (11) can be metal level or metal oxide layer, it can be one deck, it also can be multilayer, its total thickness is between 10 nanometers～1 micron, and the main effect of this transition layer 11 is the bonding strengths that increase between anti-etching shielding layer 7 and the glass;
C, on described transition layer 11 coating photosensitivity anti-etching shielding layer 7, photoresist material as anti-hf etching, the method of coating can spin coating, roller coating or silk-screen etc., the protective layer of coating is wanted even compact, its thickness is between the 1-200 micron, depend on the factor such as kind, concentration and etched time or etch depth of etching solution and decide, adopt 50 microns thickness in the present embodiment;
D, on photosensitivity anti-etching shielding layer 7, adopt photoetching method to make etched recesses and the required pattern of register guide, the sheet glass 10 that is about to have photosensitivity anti-etching shielding layer 7 places exposure under the ready-formed template, develops, solidifies, form 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 remove transition layer 11 and photosensitivity anti-etching shielding layer 7 in the pattern;
E, two sheet glass that form etched pattern through step D 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;
F, 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 E, until etching the required degree of depth, but etched depth can not surpass thickness of glass half, to guarantee glass intensity, generally determine the needs etched depth according to the thickness of siccative, etched depth as required and 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;
G, remove the photosensitivity anti-etching shielding layer 7 on sheet glass 10 surfaces, remove transition layer 11 with harsh dose with the alkali lye of 2%-10%, and two sheet glass 10 that fit together back-to-back separate 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 E has following two kinds:
First kind, as shown in Figure 1, be with the adhesive tape 8 of anti-etching liquid directly will back-to-back two sheet glass 10 around trip edges be tightly connected, before the removal protective layer, remove then.
Second kind, as shown in Figure 2, be submarginal local continuity point glue at every sheet glass 10 back sides, then two sheet glass 10 are fitted back-to-back and allow adhesive curing, 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 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 according to the size of glass back cover 2, cut the edge section that has glue on every side with the method for cutting after removing protective layer, 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.
The display of organic electroluminescence of the glass back cover made that the application aforesaid method is made as shown in Figure 3.This indicating meter 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, and described groove 21 just forms a closed cavity, and the degree of depth of groove 21 is no more than half intensity with assurance glass back cover 2 of thickness of glass.In described groove 21, be provided with siccative 5, siccative 5 the place aheads are provided with positive and negative two electrodes 3,4 and are coated with the luminous organic material layer 6 of thin layer between the interlayers of the positive and negative electrode 3,4 at two electrode rears, and 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.
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, plate thin transition layer (11) in the front of clean sheet glass (10);
C, go up coating photosensitivity anti-etching shielding layer (7) at described transition layer (11);
D, go up to adopt photoetching method to make the required pattern of etched recesses at photosensitivity anti-etching shielding layer (7), the sheet glass (10) that is about to have photosensitivity anti-etching shielding layer (7) places exposure under the ready-formed template, develops, solidifies, form the profile pattern that needs etched described groove (21), and remove transition layer (11) and photosensitivity anti-etching shielding layer (7) in the pattern;
E, two sheet glass that form the etched recesses pattern through step D are fit together back-to-back, take seal approach the edge of pasting seam is arranged;
F, state two sheet glass (10) that fit together back-to-back in the step e and carry out etching, until etching the required degree of depth with etching solution;
G, the photosensitivity anti-etching shielding layer (7) of removing sheet glass (10) surface and transition layer (11) and two sheet glass (10) separation that fits together back-to-back, 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 e, described back-to-back two sheet glass (10) are that adhesive tape (8) 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 e, the seal connecting method of described back-to-back two sheet glass (10) is: at the submarginal local continuity point glue in every sheet glass (10) back side, then two sheet glass (10) are fitted back-to-back and allow adhesive curing; Be the size according to glass back cover (2) in step G, the edge section that two sheet glass (10) periphery is had glue cuts away, thereby two sheet glass (10) are isolating.
4, according to the making method of the glass back cover of the arbitrary described display of organic electroluminescence of claim 1 to 3; it is characterized in that: transition layer described in the step B (11) is metal level or metal oxide layer; it can be one deck; it also can be multilayer; its total thickness is that the thickness of the anti-etching shielding layer of photosensitivity described in the step C (7) is between 1 micron～200 microns between 10 nanometers～1 micron.
5, according to the making method of the glass back cover of the arbitrary described display of organic electroluminescence of claim 1 to 3, it is characterized in that: described etching solution adopts the acidic solution of fluoride ion.
6, according to the making method of the glass back cover of the arbitrary described display of organic electroluminescence of claim 1 to 3, it is characterized in that: the etch depth of sheet glass in the described step F (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 3, it is characterized in that: the pattern of making among the described step D also comprises the register guide with described glass protecgulum (1) contraposition applying usefulness.
8, a kind of display of organic electroluminescence that uses the described glass back cover of claim 1, it is characterized in that this indicating meter is tightly connected and is formed by the glass back cover (2) of flat glass protecgulum (1) and band groove (21), the degree of depth of described groove (21) is less than half of glass back cover (2) thickness, in described groove (21), be provided with siccative (5), siccative (5) the place ahead is provided with positive and negative two electrodes (3), (4), the luminous organic material layer (6) of stringer between the interlayer of positive and negative electrode (3), (4); It is luminous to pass to direct-current drive to this luminous organic material layer (6) by positive and negative electrode (3) and (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410026837XA CN1280221C (en) | 2004-04-09 | 2004-04-09 | Method for fabricating organic electroluminescent display and back cover made from glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410026837XA CN1280221C (en) | 2004-04-09 | 2004-04-09 | Method for fabricating organic electroluminescent display and back cover made from glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1562841A true CN1562841A (en) | 2005-01-12 |
| CN1280221C CN1280221C (en) | 2006-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410026837XA Expired - Lifetime CN1280221C (en) | 2004-04-09 | 2004-04-09 | Method for fabricating organic electroluminescent display and back cover made from glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1280221C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866583A (en) * | 2010-02-26 | 2010-10-20 | 信利半导体有限公司 | Rear cover and manufacturing method thereof |
| CN101510531B (en) * | 2009-03-26 | 2011-02-09 | 浙江贝力生科技有限公司 | Sealing cover plate of organic light-emitting display |
| CN1891651B (en) * | 2005-07-06 | 2011-05-18 | 深圳Tcl工业研究院有限公司 | Glass digitalized etching method |
| CN1891652B (en) * | 2005-07-06 | 2011-05-18 | 深圳Tcl工业研究院有限公司 | Process for manufacturing glass back cover of organic electroluminescence display device on planer glass etching groove |
| CN105259737A (en) * | 2015-09-01 | 2016-01-20 | 苏州市贝特利高分子材料股份有限公司 | Transfer processing method for glass base material of cover board |
| CN107663030A (en) * | 2016-07-29 | 2018-02-06 | 蓝思科技（长沙）有限公司 | A kind of preparation method and glass plate of the glass plate of the grain pattern containing etching |
| CN107663028A (en) * | 2016-07-29 | 2018-02-06 | 蓝思科技（长沙）有限公司 | A kind of preparation method and glass plate of the coated glass pane of the grain pattern containing etching |
| CN110642522A (en) * | 2018-06-27 | 2020-01-03 | 信利光电股份有限公司 | Texture processing method |
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2004
- 2004-04-09 CN CNB200410026837XA patent/CN1280221C/en not_active Expired - Lifetime
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| CN1891651B (en) * | 2005-07-06 | 2011-05-18 | 深圳Tcl工业研究院有限公司 | Glass digitalized etching method |
| CN1891652B (en) * | 2005-07-06 | 2011-05-18 | 深圳Tcl工业研究院有限公司 | Process for manufacturing glass back cover of organic electroluminescence display device on planer glass etching groove |
| CN101510531B (en) * | 2009-03-26 | 2011-02-09 | 浙江贝力生科技有限公司 | Sealing cover plate of organic light-emitting display |
| CN101866583A (en) * | 2010-02-26 | 2010-10-20 | 信利半导体有限公司 | Rear cover and manufacturing method thereof |
| CN105259737A (en) * | 2015-09-01 | 2016-01-20 | 苏州市贝特利高分子材料股份有限公司 | Transfer processing method for glass base material of cover board |
| CN105259737B (en) * | 2015-09-01 | 2017-08-04 | 苏州市贝特利高分子材料股份有限公司 | A kind of cover-plate glass base material transfer process method |
| CN107663030A (en) * | 2016-07-29 | 2018-02-06 | 蓝思科技（长沙）有限公司 | A kind of preparation method and glass plate of the glass plate of the grain pattern containing etching |
| CN107663028A (en) * | 2016-07-29 | 2018-02-06 | 蓝思科技（长沙）有限公司 | A kind of preparation method and glass plate of the coated glass pane of the grain pattern containing etching |
| CN110642522A (en) * | 2018-06-27 | 2020-01-03 | 信利光电股份有限公司 | Texture processing method |
| CN115124252A (en) * | 2022-07-25 | 2022-09-30 | 厦门普诚科技有限公司 | Fingerprint panel sealing and thinning method |
| CN115124252B (en) * | 2022-07-25 | 2023-11-21 | 厦门普诚科技有限公司 | Sealing and thinning method of fingerprint panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1280221C (en) | 2006-10-18 |
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