CN102690066B - Fixing method of glass substrate - Google Patents
Fixing method of glass substrate Download PDFInfo
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- CN102690066B CN102690066B CN201110069922.4A CN201110069922A CN102690066B CN 102690066 B CN102690066 B CN 102690066B CN 201110069922 A CN201110069922 A CN 201110069922A CN 102690066 B CN102690066 B CN 102690066B
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- glass substrate
- sticky tape
- double sticky
- acrylate double
- glass
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Abstract
The invention discloses a fixing method of a glass substrate. The method comprises: attaching an acrylate double-sided tape to an edge position corresponding to that of a second glass substrate on a first glass substrate; attaching the second glass substrate to the first glass substrate; and conducting annealing treatment on the two glass substrates. According to the technical solution of the invention, rapid fixing of an ultra-thin glass substrate and a thick glass substrate can be realized so as to achieve processing of ultra-thin glass.
Description
Technical field
The present invention relates to the technology of preparing of flexible display device, particularly relate to a kind of fixing means of glass substrate.
Background technology
Flat panel display had development at full speed in nearly ten years, all make significant headway from the size of screen to the quality of display, through continuous effort, liquid-crystal display (LCD, Liquid Crystal Display) performance of each side reached conventional cathode ray tube (CRT, Cathode Ray Tube) level of indicating meter, there is greatly the trend replacing CRT monitor.
Along with the production-scale continuous expansion of flat panel display product, competition between each production firm is also growing more intense, each production firm, while improving constantly flat panel display product performance, is also constantly making great efforts the production cost reducing flat panel display product, thus is improving the market competitiveness of self.Flexible display device has the characteristic that can bend, thus the field much needing curved-surface display can be competent at, such as smart card, Electronic Paper, intelligent label and traditional monitor all areas that is suitable for, and in the market of the flat panel display product in future, flexible display device will rely on its fantasy beautiful outward appearance to capture the huge market share.
In prior art, flexible display device is mainly based on display device prepared by organic materials substrate, the organic films such as such as Kapton, polyphenyl dioctyl phthalate ethylene glycol membrane of lipoprotein, polyethylene terephthalate film, and cholesteric liquid crystal displays, electrophoresis type display, display of organic electroluminescence etc. prepared by the laminated film of organic film.Glass substrate has transmitance, chemical stability, water resistance characteristic and the dielectric characteristics more outstanding than organic materials, and ultra-thin glass substrate also has good snappiness; But, due to the fragility of current glass substrate itself, make the application of glass substrate on large-area flat-plate display product have very large limitation, and carrying and processing ultra-thin glass are very difficult separately.
Summary of the invention
In view of this, main purpose of the present invention is the fixing means providing a kind of glass substrate, realizes ultra thin glass substrates and fixing fast, to realize the processing of ultra-thin glass compared with heavy sheet glass substrate.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of fixing means of glass substrate, comprising:
The marginal position that first glass substrate corresponds to the second glass substrate attaches acrylate double sticky tape;
Second glass substrate is attached on the first glass substrate;
Anneal is carried out to two glass substrates.
In aforesaid method, the described marginal position corresponding to the second glass substrate on the first glass substrate attaches acrylate double sticky tape and is:
The marginal position that first glass substrate corresponds to the second glass substrate attaches the wide acrylate double sticky tape of 5mm to 20mm.
In aforesaid method, the thickness of described first glass substrate is for being more than or equal to 0.4mm, and the thickness of described second glass substrate is for being less than or equal to 0.1mm.
In aforesaid method, describedly anneal carried out to two glass substrates be:
The first glass substrate after attaching and the second glass substrate are placed in baking oven or vacuum annealing furnace and carry out anneal; Wherein, the temperature of baking oven or vacuum annealing furnace is 160 DEG C to 190 DEG C, and the duration of anneal is 10 to 15 minutes.
In aforesaid method, the method also comprises:
After two glass substrate cool to room temperature after process to be annealed, prepare flexible display device.
In aforesaid method, after two glass substrate cool to room temperature after described process to be annealed, preparing flexible display device is:
The first glass substrate after annealed process and the second glass substrate are taken out from baking oven or vacuum annealing furnace, after two glass substrate cool to room temperature, conventionally prepares flexible display device.
In aforesaid method, described flexible display device of conventionally preparing is:
Second glass substrate deposits layer of metal layer, mask exposure process is carried out to two glass substrates, then carries out etching processing, finally carry out photoresist lift off process.
In aforesaid method, the method also comprises: carry out sofening treatment to the acrylate double sticky tape attached, be separated by the first glass substrate with the second glass substrate.
In aforesaid method, the described acrylate double sticky tape to attaching carries out sofening treatment and is:
Soak with acetone or 3M adhesive remover two glass substrates attaching acrylate double sticky tape, acetone or 3M adhesive remover carry out sofening treatment to the acrylate double sticky tape attached.
The fixing means of glass substrate provided by the invention, the marginal position that the first glass substrate corresponds to the second glass substrate attaches acrylate double sticky tape, second glass substrate is attached on the first glass substrate, anneal is carried out to two glass substrates, utilize acrylate double sticky tape as the matrix material of the first glass substrate and the second glass substrate, and use aforesaid method to process two glass substrates, make acrylate double sticky tape can rapid melting, thus two glass substrates can be fixed fast, and bubble can be discharged in the rapid melting process of acrylate double sticky tape, and the linear gap of acrylate double sticky tape corner area can be filled, thus ensure that glass substrate is to strong acid, highly basic, organic solvents etc. have good barriering effect, present method is applied to when preparing flexible display device, can the good article rate of improving product and production capacity, thus improve the competitive power of product.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the present invention realizes the fixing means of glass substrate;
Fig. 2 is the schematic cross-section after the first glass substrate and the second glass substrate attach;
Fig. 3 is the schematic cross-section of corner area after the first glass substrate and the second glass substrate attach;
Fig. 4 is the schematic cross-section of corner area after the first glass substrate and the second glass substrate are annealed.
Embodiment
The making processes of display device needs the immersion through the organic solvent such as high temperature, strong acid, highly basic and Virahol of more than 300 DEG C, thus needs the matrix material attached to have the ability of certain opposing high temperature, strong acid, highly basic, organic solvent.Acrylate can resist high temperature in the regular hour, strong acid, highly basic, one of material of the severe environment such as organic solvent, and very high cohesive strength can be provided, but, containing a large amount of bubble in the double sticky tape utilizing acrylate to prepare, if be directly used in bonding two glass substrates, easily in the preparation process of display device, liquid infiltrates between glass substrate by bubble, cause under high temperature or vacuum environment, ultra thin glass substrates mid-way is uneven, affect product performance, even serious meeting causes glass substrate breakage thus damages display device, in addition, the double sticky tape utilizing acrylate to prepare can produce a linear gap due to the thickness of adhesive tape self at corner area, in the preparation process of display device, liquid also can enter two glass substrates through this linear gap by wicking action, based on physical properties and the chemical property of aforesaid propylene acid esters, the present invention using utilize acrylate to prepare double sticky tape as matrix material, realize a kind of fixing means of glass substrate, its basic thought is: the marginal position corresponding to the second glass substrate on the first glass substrate attaches acrylate double sticky tape, second glass substrate is attached on the first glass substrate, anneal is carried out to two glass substrates.
Below by drawings and the specific embodiments, the present invention is described in further detail again.
The invention provides a kind of fixing means of glass substrate, Fig. 1 is the schematic flow sheet that the present invention realizes the fixing means of glass substrate, and as shown in Figure 1, the method comprises the following steps:
Step 101, the marginal position that the first glass substrate corresponds to the second glass substrate attaches acrylate double sticky tape;
Concrete, Fig. 2 is the schematic cross-section after the first glass substrate and the second glass substrate attach, Fig. 3 is the schematic cross-section of corner area after the first glass substrate and the second glass substrate attach, as shown in Figures 2 and 3, the marginal position the first glass substrate corresponding to the second glass substrate attaches the wide acrylate double sticky tape of 5mm to 20mm; Wherein, the first glass substrate is thicker glass substrate, and its thickness is for being more than or equal to 0.4mm, and the second glass substrate is ultra-thin glass substrate, and its thickness is for being less than or equal to 0.1mm; Described acrylate double sticky tape is the double sticky tape utilizing acrylate to make, the VHB series adhesive tape of such as 3M company; Here, as shown in Figure 3, after the first glass substrate attaches acrylate double sticky tape, can there is linear gap in corner area, and there is bubble in acrylate double sticky tape.
Step 102, attaches to the second glass substrate on the first glass substrate.
Step 103, carries out anneal to two glass substrates;
Concrete, the first glass substrate after attaching and the second glass substrate are placed in baking oven or vacuum annealing furnace and carry out anneal; Wherein, the temperature of baking oven or vacuum annealing furnace is 160 DEG C to 190 DEG C, and the duration of anneal is 10 to 15 minutes; Here, utilize vacuum annealing furnace to carry out anneal, the velocity of discharge of the bubble in acrylate double sticky tape can be improved;
Fig. 4 is the schematic cross-section of corner area after the first glass substrate and the second glass substrate are annealed, as shown in Figure 4, after annealed process, in acrylate double sticky tape, original bubble is in annealing process, discharge completely due to the softening of acrylate double sticky tape, and the linear gap of the original corner area of acrylate double sticky tape also completely fills acrylate double sticky tape;
Here, if annealing temperature is too high, the generation variable color of acrylate double faced adhesive tape or bubble can be made or produce gap crackle, if the too low meeting of temperature makes acrylate double sticky tape not soften completely or bating effect is poor, cause when making flexible display device, liquid infiltrates between the first glass substrate and the second glass substrate; If the overlong time of anneal, not only little on the impact of bating effect, but also can production capacity be affected, the duration of therefore above-mentioned anneal and the temperature of baking oven are preferred versions.
Step 104, after two glass substrate cool to room temperature after process to be annealed, prepares flexible display device;
Concrete, the first glass substrate after annealed process and the second glass substrate are taken out from baking oven or vacuum annealing furnace, after two glass substrate cool to room temperature, just complete the whole fixed work order of the first glass substrate and the second glass substrate, then conventionally prepare flexible display device; In practical application, described room temperature is 15 ~ 30 DEG C, and preferred room temperature is 23 DEG C;
Described flexible display device of conventionally preparing is: first on the second glass substrate, deposit layer of metal layer, then mask exposure process is carried out to two glass substrates, carry out etching processing again, finally carry out photoresist lift off process, this process is carried out 4 to 6 times repeatedly.
Step 105, carries out sofening treatment to the acrylate double sticky tape attached, is separated by the first glass substrate with the second glass substrate;
Concrete, finally need to soak with acetone or 3M adhesive remover two glass substrates attaching acrylate double sticky tape, make acetone or 3M adhesive remover can carry out sofening treatment to the acrylate double sticky tape attached; After sofening treatment is carried out to the acrylate double sticky tape attached, the first glass substrate can be separated with the second glass substrate.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a fixing means for glass substrate, is characterized in that, the method comprises:
The marginal position that first glass substrate corresponds to the second glass substrate attaches acrylate double sticky tape;
Second glass substrate is attached on the first glass substrate;
Anneal is carried out to two glass substrates; Wherein,
Describedly anneal is carried out to two glass substrates be: the first glass substrate after attaching and the second glass substrate are placed in vacuum annealing furnace and carry out anneal; Wherein, the temperature of vacuum annealing furnace is 160 DEG C to 190 DEG C.
2. method according to claim 1, is characterized in that, the described marginal position corresponding to the second glass substrate on the first glass substrate attaches acrylate double sticky tape and is:
The marginal position that first glass substrate corresponds to the second glass substrate attaches the wide acrylate double sticky tape of 5mm to 20mm.
3. method according to claim 1 and 2, is characterized in that, the thickness of described first glass substrate is for being more than or equal to 0.4mm, and the thickness of described second glass substrate is for being less than or equal to 0.1mm.
4. method according to claim 1, is characterized in that, the duration of anneal is 10 to 15 minutes.
5. method according to claim 1, is characterized in that, the method also comprises:
After two glass substrate cool to room temperature after process to be annealed, prepare flexible display device.
6. method according to claim 5, is characterized in that, after two glass substrate cool to room temperature after described process to be annealed, preparing flexible display device is:
The first glass substrate after annealed process and the second glass substrate are taken out from baking oven or vacuum annealing furnace, after two glass substrate cool to room temperature, conventionally prepares flexible display device.
7. method according to claim 6, is characterized in that, described flexible display device of conventionally preparing is:
Second glass substrate deposits layer of metal layer, mask exposure process is carried out to two glass substrates, then carries out etching processing, finally carry out photoresist lift off process.
8. method according to claim 5, is characterized in that, the method also comprises: carry out sofening treatment to the acrylate double sticky tape attached, be separated by the first glass substrate with the second glass substrate.
9. method according to claim 8, is characterized in that, the described acrylate double sticky tape to attaching carries out sofening treatment and is:
Soak with acetone or 3M adhesive remover two glass substrates attaching acrylate double sticky tape, acetone or 3M adhesive remover carry out sofening treatment to the acrylate double sticky tape attached.
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| CN201110069922.4A CN102690066B (en) | 2011-03-22 | 2011-03-22 | Fixing method of glass substrate |
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| CN201110069922.4A CN102690066B (en) | 2011-03-22 | 2011-03-22 | Fixing method of glass substrate |
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| CN102690066B true CN102690066B (en) | 2015-02-25 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102637577B (en) * | 2011-04-02 | 2015-08-05 | 京东方科技集团股份有限公司 | A kind of preparation method of display device |
| CN104445976A (en) * | 2014-12-03 | 2015-03-25 | 上海天马微电子有限公司 | Thinning process method of glass substrates |
| CN104702144A (en) * | 2015-04-03 | 2015-06-10 | 京东方科技集团股份有限公司 | Friction generator, friction power generation device and display device |
| CN105967528A (en) * | 2016-05-09 | 2016-09-28 | 惠晶显示科技（苏州）有限公司 | Method for thinning liquid crystal display panel with thickness less than 200 micrometers |
| CN106970480A (en) * | 2017-04-14 | 2017-07-21 | 精电(河源)显示技术有限公司 | A kind of production process of flexible liquid crystal display |
| CN107357064A (en) * | 2017-06-14 | 2017-11-17 | 合肥市惠科精密模具有限公司 | A kind of fixing means of TFT LCD glass substrates |
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| CN1476048A (en) * | 2002-07-25 | 2004-02-18 | ��ʽ����뵼����Դ�о��� | Lighting device mfg. method |
| CN1729726A (en) * | 2002-12-25 | 2006-02-01 | 株式会社半导体能源研究所 | Light-emitting apparatus and method for manufacturing same |
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| JP2004079432A (en) * | 2002-08-21 | 2004-03-11 | Nitto Denko Corp | Transparent gas barrier member and organic electroluminescent element using it |
| EP2273475A1 (en) * | 2008-04-17 | 2011-01-12 | Asahi Glass Company, Limited | Glass laminate, display panel with support, method for producing glass laminate and method for manufacturing display panel with support |
| EP2315500A4 (en) * | 2008-07-08 | 2011-12-28 | Nitto Denko Corp | Process for producing organic electroluminescent panel |
| CN101738774B (en) * | 2008-11-06 | 2013-08-28 | 苏州海博智能系统有限公司 | Ultrathin flexible liquid crystal display and manufacturing method thereof |
| CN101851485B (en) * | 2010-05-18 | 2014-04-16 | 上海鼎道科技发展有限公司 | Light-curing adhesive used for adhering facade glass and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1476048A (en) * | 2002-07-25 | 2004-02-18 | ��ʽ����뵼����Դ�о��� | Lighting device mfg. method |
| CN1729726A (en) * | 2002-12-25 | 2006-02-01 | 株式会社半导体能源研究所 | Light-emitting apparatus and method for manufacturing same |
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