CN102690066A - Fixing method of glass substrate - Google Patents
Fixing method of glass substrate Download PDFInfo
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- CN102690066A CN102690066A CN2011100699224A CN201110069922A CN102690066A CN 102690066 A CN102690066 A CN 102690066A CN 2011100699224 A CN2011100699224 A CN 2011100699224A CN 201110069922 A CN201110069922 A CN 201110069922A CN 102690066 A CN102690066 A CN 102690066A
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- glass substrate
- propenoate
- sticky tape
- double sticky
- 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, relate in particular to a kind of fixing means of glass substrate.
Background technology
Flat panel display has had development at full speed in nearly ten years; All made significant headway to the quality that shows from the size of screen; Through continuous effort, the performance of liquid-crystal display (LCD, Liquid Crystal Display) each side has reached conventional cathode ray tube (CRT; Cathode Ray Tube) level of indicating meter has much the trend that replaces CRT monitor.
Along with the production-scale continuous expansion of flat panel display product; Competition between each production firm also is growing more intense; Each production firm is also constantly making great efforts to reduce the production cost of flat panel display product, thereby is improving the market competitiveness of self when improving constantly the flat panel display product performance.Flexible display device have can be crooked characteristic; Thereby can be competent at the field that much needs curved surface to show; For example smart card, Electronic Paper, all areas that intelligent label and traditional monitor were 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 capture the huge market share.
In the prior art; Flexible display device mainly is based on the display device for preparing on the organic materials substrate; For example organic films such as Kapton, polyphenyl dioctyl phthalate terepthaloyl moietie membrane of lipoprotein, poly terephthalic acid terepthaloyl moietie film, and the cholesteric liquid crystal displays for preparing on the laminated film of organic film, electrophoresis type display, display of organic electroluminescence etc.Glass substrate has the transmitance more outstanding than organic materials, chemicalstability, water resistance characteristic and dielectric characteristics, and ultrafine glass substrate also has good flexible; But because the present fragility of glass substrate itself makes glass substrate show that at large-area flat-plate the application on the product has very big limitation, and single handleable and processing ultra-thin glass are very difficult.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of fixing means of glass substrate, realizes the ultra-thin glass substrate and fixes than the quick of heavy sheet glass substrate, to realize the processing of ultra-thin glass.
For achieving the above object, technical scheme of the present invention is achieved in that
The present invention provides a kind of fixing means of glass substrate, comprising:
Marginal position corresponding to second glass substrate on first glass substrate attaches the propenoate double sticky tape;
Second glass substrate is attached on first glass substrate;
Two glass substrates are carried out anneal.
In the aforesaid method, saidly on first glass substrate, attach the propenoate double sticky tape and be corresponding to the marginal position of second glass substrate:
Marginal position corresponding to second glass substrate on first glass substrate attaches the wide propenoate double sticky tape of 5mm to 20mm.
In the aforesaid method, the thickness of said first glass substrate is more than or equal to 0.4mm, and the thickness of said second glass substrate is smaller or equal to 0.1mm.
In the aforesaid method, saidly two glass substrates carried out anneal be:
First glass substrate after attaching and second glass substrate be placed on carry out anneal in baking oven or the vacuum annealing furnace; Wherein, the temperature of baking oven or vacuum annealing furnace is 160 ℃ to 190 ℃, and the duration of anneal is 10 to 15 minutes.
In the aforesaid method, this method also comprises:
After treating two glass substrate cool to room temperature after the anneal, the preparation flexible display device.
In the aforesaid method, behind said two glass substrate cool to room temperature treating after the anneal, the preparation flexible display device is:
First glass substrate after the annealed processing and second glass substrate are taken out from baking oven or vacuum annealing furnace, treat two glass substrate cool to room temperature after, prepare flexible display device according to traditional method.
In the aforesaid method, saidly prepare flexible display device according to traditional method and be:
Deposition layer of metal layer carries out mask exposure to two glass substrates and handles on second glass substrate, carries out etching processing again, carries out photoresist lift off at last and handles.
In the aforesaid method, this method also comprises: the propenoate double sticky tape to attaching softens processing, and first glass substrate is separated with second glass substrate.
In the aforesaid method, the said propenoate double sticky tape that attaches is softened is treated to:
Soak two glass substrates that attach the propenoate double sticky tape with acetone or 3M adhesive remover, acetone or 3M adhesive remover soften processing to the propenoate double sticky tape that attaches.
The fixing means of glass substrate provided by the invention, the marginal position corresponding to second glass substrate on first glass substrate attaches the propenoate double sticky tape; Second glass substrate is attached on first glass substrate; Two glass substrates are carried out anneal; Utilize the matrix material of propenoate double sticky tape as first glass substrate and second glass substrate; And use aforesaid method that two glass substrates are handled; Make the propenoate double sticky tape to melt fast, thereby make two glass substrates to fix fast, and in the quick melting process of propenoate double sticky tape, can bubble be discharged; And can fill the linear slit of propenoate double sticky tape corner area, thereby guarantee that glass substrate has good barriering effect to strong acid, highly basic, organic solvent etc.; When present method is applied to prepare flexible display device, can promote yield of products and production capacity, thereby improve competitiveness of product.
Description of drawings
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 first glass substrate and second glass substrate attach;
Fig. 3 is the schematic cross-section that first glass substrate and second glass substrate attach the back corner area;
Fig. 4 is the schematic cross-section of first glass substrate and second glass substrate annealing back corner area.
Embodiment
The making processes of display device need be through the immersion of organic solvents such as the high temperature more than 300 ℃, strong acid, highly basic and Virahol, thereby the matrix material that needs to attach has the ability of certain opposing high temperature, strong acid, highly basic, organic solvent.Propenoate is to resist one of material of severe environment such as high temperature, strong acid, highly basic, organic solvent in the regular hour, and very high cohesive strength can be provided, still; Contain great amount of bubbles in the double sticky tape that utilizes propenoate to prepare; If directly be used to bond two glass substrates, in the preparation process of display device, liquid infiltrates between the glass substrate through bubble easily; Cause under high temperature or vacuum environment; Ultra-thin glass substrate mid-way is uneven, influences product performance, thereby even serious meeting cause glass substrate breakage to damage display device; In addition; Utilize the double sticky tape of propenoate preparation can produce a linear slit owing to the thickness of adhesive tape self at corner area; In the preparation process of display device; Soup also can pass this linearity slit through wicking action and get between two glass substrates, and based on the physical properties and the chemical property of aforesaid propylene acid esters, the present invention will utilize the double sticky tape of propenoate preparation as matrix material; Realize a kind of fixing means of glass substrate, its basic thought is: the marginal position corresponding to second glass substrate on first glass substrate attaches the propenoate double sticky tape; Second glass substrate is attached on first glass substrate; Two glass substrates are carried out anneal.
Through accompanying drawing and specific embodiment the present invention is done further detailed description more below.
The present invention provides a kind of fixing means of glass substrate, and Fig. 1 is the schematic flow sheet that the present invention realizes the fixing means of glass substrate, and is as shown in Figure 1, and this method may further comprise the steps:
Step 101, the marginal position corresponding to second glass substrate on first glass substrate attaches the propenoate double sticky tape;
Concrete; Fig. 2 is the schematic cross-section after first glass substrate and second glass substrate attach; Fig. 3 is the schematic cross-section that first glass substrate and second glass substrate attach the back corner area; As shown in Figures 2 and 3, the marginal position corresponding to second glass substrate attaches the wide propenoate double sticky tape of 5mm to 20mm on first glass substrate; Wherein, first glass substrate is thicker glass substrate, and its thickness is more than or equal to 0.4mm, and second glass substrate is ultrafine glass substrate, and its thickness is smaller or equal to 0.1mm; Said propenoate double sticky tape is the double sticky tape that utilizes propenoate to process, for example the VHB of 3M company series adhesive tape; Here, as shown in Figure 3, after attaching the propenoate double sticky tape on first glass substrate, can there be linear slit in corner area, and has bubble in the propenoate double sticky tape.
Step 102 attaches to second glass substrate on first glass substrate.
Step 103 is carried out anneal to two glass substrates;
Concrete, first glass substrate after attaching and second glass substrate be placed on carry out anneal in baking oven or the vacuum annealing furnace; Wherein, the temperature of baking oven or vacuum annealing furnace is 160 ℃ to 190 ℃, and the duration of anneal is 10 to 15 minutes; Here, utilize vacuum annealing furnace to carry out anneal, can improve the velocity of discharge of the bubble in the propenoate double sticky tape;
Fig. 4 is the schematic cross-section of first glass substrate and second glass substrate annealing back corner area; As shown in Figure 4; After the annealed processing; Original bubble is in annealing process in the propenoate double sticky tape because propenoate double sticky tape softening and discharging fully, and the linear slit of the original corner area of propenoate double sticky tape also completely filled the propenoate double sticky tape;
Here; If annealing temperature is too high; Can make the generation variable color of propenoate double faced adhesive tape or separate out bubble or generation slit crackle; If temperature cross low the propenoate double sticky tape can not soften fully or bating effect relatively poor, cause when the making flexible display device, liquid infiltrates between first glass substrate and second glass substrate; If the overlong time of anneal is not only little to the influence of bating effect, but also can influence production capacity, therefore the duration and the temperature of oven of above-mentioned anneal are preferred versions.
Step 104, treat two glass substrate cool to room temperature after the anneal after, the preparation flexible display device;
Concrete; First glass substrate after the annealed processing and second glass substrate are taken out from baking oven or vacuum annealing furnace; After treating two glass substrate cool to room temperature; Just accomplish the whole fixedly operation of first glass substrate and second glass substrate, prepared flexible display device according to traditional method then; In the practical application, said room temperature is 15～30 ℃, and preferred room temperature is 23 ℃;
Saidly prepare flexible display device according to traditional method and be: deposition layer of metal layer on second glass substrate at first; Then two glass substrates being carried out mask exposure handles; Carry out etching processing again, carry out photoresist lift off at last and handle, this process is carried out 4 to 6 times repeatedly and is got final product.
Step 105 is softened processing to the propenoate double sticky tape that attaches, and first glass substrate is separated with second glass substrate;
Concrete, need soak two glass substrates that attach the propenoate double sticky tape with acetone or 3M adhesive remover at last, make acetone or 3M adhesive remover to soften processing to the propenoate double sticky tape that attaches; After the propenoate double sticky tape that attaches is softened processing, can first glass substrate be separated with second glass substrate.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the fixing means of a glass substrate is characterized in that, this method comprises:
Marginal position corresponding to second glass substrate on first glass substrate attaches the propenoate double sticky tape;
Second glass substrate is attached on first glass substrate;
Two glass substrates are carried out anneal.
2. method according to claim 1 is characterized in that, saidly on first glass substrate, attaches the propenoate double sticky tape corresponding to the marginal position of second glass substrate and is:
Marginal position corresponding to second glass substrate on first glass substrate attaches the wide propenoate double sticky tape of 5mm to 20mm.
3. method according to claim 1 and 2 is characterized in that, the thickness of said first glass substrate is more than or equal to 0.4mm, and the thickness of said second glass substrate is smaller or equal to 0.1mm.
4. method according to claim 1 is characterized in that, saidly two glass substrates are carried out anneal is:
First glass substrate after attaching and second glass substrate be placed on carry out anneal in baking oven or the vacuum annealing furnace; Wherein, the temperature of baking oven or vacuum annealing furnace is 160 ℃ to 190 ℃, and the duration of anneal is 10 to 15 minutes.
5. method according to claim 1 is characterized in that, this method also comprises:
After treating two glass substrate cool to room temperature after the anneal, the preparation flexible display device.
6. method according to claim 5 is characterized in that, behind said two glass substrate cool to room temperature treating after the anneal, the preparation flexible display device is:
First glass substrate after the annealed processing and second glass substrate are taken out from baking oven or vacuum annealing furnace, treat two glass substrate cool to room temperature after, prepare flexible display device according to traditional method.
7. method according to claim 6 is characterized in that, saidly prepares flexible display device according to traditional method and is:
Deposition layer of metal layer carries out mask exposure to two glass substrates and handles on second glass substrate, carries out etching processing again, carries out photoresist lift off at last and handles.
8. method according to claim 5 is characterized in that, this method also comprises: the propenoate double sticky tape to attaching softens processing, and first glass substrate is separated with second glass substrate.
9. method according to claim 8 is characterized in that, the said propenoate double sticky tape that attaches is softened is treated to:
Soak two glass substrates that attach the propenoate double sticky tape with acetone or 3M adhesive remover, acetone or 3M adhesive remover soften processing to the propenoate double sticky tape that attaches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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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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| CN102690066A true CN102690066A (en) | 2012-09-26 |
| CN102690066B CN102690066B (en) | 2015-02-25 |
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Cited By (6)
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| CN102637577A (en) * | 2011-04-02 | 2012-08-15 | 京东方科技集团股份有限公司 | 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| CN102690066B (en) | 2015-02-25 |
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