CN107639916A - The rework method of defective products after touch-screen is bonded entirely - Google Patents
The rework method of defective products after touch-screen is bonded entirely Download PDFInfo
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- CN107639916A CN107639916A CN201710828075.2A CN201710828075A CN107639916A CN 107639916 A CN107639916 A CN 107639916A CN 201710828075 A CN201710828075 A CN 201710828075A CN 107639916 A CN107639916 A CN 107639916A
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- several part
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Abstract
The present invention discloses a kind of rework method of defective products after touch-screen is bonded entirely, comprises the following steps：A：Heating, reworks will be needed to carry out platform high-temperature heating treatment；B：Cut off, cut off each several part component being connected in reworks with OCA or OCR using wire；C：Removing glue, remove the surface cull of each several part component；D：Pad pasting, pad pasting protection is carried out to each several part component.The present invention is by the way that in the state of high-temperature heating, OCR or OCA glue performance can change, and the material of optical cement can soften and viscosity reduces；According to this principle, we use a kind of vacuum absorbing platform of high-temperature heating；The each several part component of fitting is separated by the principle of metal wire cutting；Remaining cull is washed by solvent.Sensor Glass and TFT after full jointing product is done over again is overcome to do over again broken the problem of can not reusing；Done over again using the inventive method, yield can reach more than 80%.
Description
Technical field
The present invention relates to TP module mounting technologies field, the heavy industry side of defective products after more particularly to a kind of touch-screen is bonded entirely
Method.
Background technology
With the rapid development of technology, touch screen increasingly spreads to daily life with its unique advantage and worked as
In；And screen is bonded entirely with its more preferable transmitance, higher unfailing performance, increasingly it is welcomed by the general public；At present in industry
It is more and more that trend can be seen that large scale touch-screen is bonded entirely, but for touch-screen manufacture manufacturing enterprise, large scale
Touch-screen be bonded entirely in procedure for producing it is bad also be difficult to control, product either OCR or OCA full fitting, which all exists, to be difficult to
The problem of doing over again；And can only also do over again less than 8 cun of the small size of technique of doing over again of row liquid nitrogen frozen separation commonly used in the trade at present is touched
Touch the full jointing product of screen and because temperature is too low, Sensor Glass and TFT module are sharp again after low temperature explosion can not do over again
With its result causes production cost to remain high, it is difficult to form effective competitiveness.
Therefore, the prior art is defective, it is necessary to improve.
The content of the invention
To overcome Sensor Glass and TFT after the freezing of existing touch-screen full jointing product is done over again to burst, large scale touches
Shield the problem of yield that can not do over again and do over again is low, the present invention provides a kind of rework method of defective products after touch-screen is bonded entirely, in fact
Reused after the existing full jointing product of large scale touch-screen is done over again and Sensor Glass and TFT do over again.
To achieve the above object, concrete technical scheme of the invention is as follows：The weight of defective products after a kind of touch-screen is bonded entirely
Work method, comprises the following steps：
A：Heating, reworks will be needed to carry out platform high-temperature heating treatment；
B：Cut off, cut off each several part component being connected in reworks with OCA or OCR using wire；
C：Removing glue, remove the surface cull of each several part component；
D：Pad pasting, pad pasting protection is carried out to each several part component.
Preferably, in step A, it will specifically need reworks TP faces to place and heated on the heating platform with vacuum suction
Processing.
Preferably, in step A, the temperature of heating is more than or equal to 70 DEG C.
Preferably, in step A, the time of heating is more than 10s.
Preferably, in step A, the time of heating is 10s-60s.
Preferably, in step B, after reworks cutting separation, then will be connected within 10s with OCA or OCR in reworks
Each several part component separates.
Preferably, in step C, each several part component is removed using isopropanol or absolute alcohol, and by scraper and cleaning cloth for glasses
Surface cull.
Preferably, in step C, the surface of each several part component is removed using the absolute alcohol that concentration is more than 99.5%
Cull.
The wire that step B is used in the present invention, using Buddha's warrior attendant silk or molybdenum filament.
Using such scheme, the present invention is by the way that in the state of high-temperature heating, OCR or OCA glue performance can become
Change, the material of optical cement can soften and viscosity reduces；According to this principle, we are put down using a kind of vacuum suction of high-temperature heating
Platform；The each several part component of fitting is separated by the principle of metal wire cutting；Remaining cull is washed by solvent.Overcome
Sensor Glass and TFT do over again broken the problem of can not reusing after full jointing product is done over again；Entered using the inventive method
Row is done over again, and yield can reach more than 80%.
Brief description of the drawings
Fig. 1 is the process principle figure of the present invention；
Fig. 2 is the structural representation of present invention heating product.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
Shown in reference picture 1 and Fig. 2, the rework method of defective products after a kind of touch-screen of present invention offer is bonded entirely, including with
Lower step：
First, step A is performed：Heating, reworks will be needed to carry out platform high-temperature heating treatment；Wherein, band is placed into TP faces
Heated on the heating platform of vacuum suction；As shown in Fig. 2 reworks include sensor Glass and TFT layer 2, lid
Flaggy 1 and OCA the or OCR optical cements 3 for pasting Sensor Glass layers 1 and cover layer 2, by the way that reworks are placed
On heating platform 4.
First, selection can realize the method for high-temperature heating, be considered from the following aspects：Economic aspect；To people
The nocuity of body；The comprehensive considerations such as the protection to original paper of doing over again, we are added the mode of final choice platform heating to product
Heat.Heating condition：The temperature of heating is greater than or equal to 70 DEG C, and the time of heating is more than 10s, it is preferable that is added
The time of heat treatment is 10s-60s.Optimum temperature by experimental verification final choice high-temperature heating treatment is 70 DEG C, pays attention to temperature
The situation that easily bonding causes generation not peel off again after the gluing thick cutting separation of Du Taigao optics occurs；Heating when
Between carry out cutting for 30s condition on production and be separated into most preferably.
After high-temperature heating treatment, step B is performed：Cut off, it is each by being connected in reworks with OCA or OCR using wire
Members, i.e. sensor Glass or TFT layer 2 and cover layer 1 are cut off；Wear high temperature gloves, now can single-handedly by
Sensor Glass or TFT layer 2 are peeled off with cover layer 1, pay attention to once separating as far as possible in stripping process, and after cutting
Not wait the long time, in order to avoid the situation for causing to be difficult to peel off occurs, wherein it is preferred to, within 10s by reworks with
The each several part component of OCA or OCR connections separates.
After the completion of stripping, step C is performed：Removing glue, remove surface the cull OCA or OCR of each several part component；Wherein, will divide
The Sensor Glass or TFT layer 2 opened and the scraper scraper surface of cover layer 1 glue, cull are removed using alcohol in high concentration,
Sensor Glass preferentially use absolute alcohol, and preferably concentration is more than 99.5%；TFT surfaces have polaroid preferentially to use
Isopropyl alcohol wipe down.
Finally, step D is performed：Pad pasting, i.e., each several part component clean to removing glue carry out pad pasting protection.Wherein, will clean
Clean Sensor Glass or TFT and cover plate, diaphragm is sticked after having examined outward appearance, remain next use.
As shown in Figure 2, do-over promotes Sensor Glass or TFT layer 2 and lid by the high-temperature heating of certain time
Physical change occurs for OCA the or OCR glue between flaggy 1, and optical cement material softens and viscosity diminishes, can be easily so as to reach
Cut the purpose peeled off.
In order to reach the effect that can be peeled off easily, while consider influence of the temperature to product, in terms of mixed economy because
Element is considered, and is proved by a series of experiments, and we have tested out optimal heating cutting condition and stripping conditions, and table 1 is joined for experiment
Said conditions and experimental result.
Table 1：
Done over again using the process of the present invention, overcome cryogenic freezing separation Sensor Glass or TFT explosions
It can not reuse and be bonded the problem of touch-screen can not do over again entirely with large scale, the cost of product be greatly reduced, by reality
Production is assessed, and product does over again back shroud and Sensor Glass or TFT can reuse operation, and yield can reach 80%
More than, the loss of enterprise has been retrieved significantly.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every at this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in the scope of patent protection of the present invention.
Claims (8)
- The rework method of defective products after 1. a kind of touch-screen is bonded entirely, it is characterised in that comprise the following steps：A：Heating, reworks will be needed to carry out platform high-temperature heating treatment；B：Cut off, cut off each several part component being connected in reworks with OCA or OCR using wire；C：Removing glue, remove the surface cull of each several part component；D：Pad pasting, pad pasting protection is carried out to each several part component.
- 2. rework method according to claim 1, it is characterised in that in step A, will specifically need reworks TP faces to place Heated on heating platform with vacuum suction.
- 3. rework method according to claim 1, it is characterised in that in step A, in step A, the temperature of heating is big In equal to 70 DEG C.
- 4. rework method according to claim 1, it is characterised in that in step A, the time of heating is more than 10s.
- 5. rework method according to claim 4, it is characterised in that in step A, the time of heating is 10s-60s.
- 6. rework method according to claim 1, it is characterised in that in step B, after reworks cutting separation, then 10s Within each several part component being connected in reworks with OCA or OCR is separated.
- 7. rework method according to claim 1, it is characterised in that in step C, using isopropanol or absolute alcohol, and The surface cull of each several part component is removed by scraper and cleaning cloth for glasses.
- 8. rework method according to claim 1, it is characterised in that be more than 99.5% using concentration in step C Absolute alcohol remove each several part component surface cull.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710828075.2A CN107639916A (en) | 2017-09-14 | 2017-09-14 | The rework method of defective products after touch-screen is bonded entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710828075.2A CN107639916A (en) | 2017-09-14 | 2017-09-14 | The rework method of defective products after touch-screen is bonded entirely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107639916A true CN107639916A (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710828075.2A Pending CN107639916A (en) | 2017-09-14 | 2017-09-14 | The rework method of defective products after touch-screen is bonded entirely |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110096183A (en) * | 2019-05-09 | 2019-08-06 | 芜湖伦丰电子科技有限公司 | A kind of reworking method of capacitance touch screen |
| CN110328637A (en) * | 2019-07-04 | 2019-10-15 | 淮北摩兰科技有限公司 | A kind of disassembling method and fixture of flexible screen and TP |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203197984U (en) * | 2013-02-21 | 2013-09-18 | 苏州欧菲光科技有限公司 | Jig for disassembling TP and LCM |
| CN104960313A (en) * | 2015-07-17 | 2015-10-07 | 深圳晶华显示器材有限公司 | Process method for reworking after TP full lamination |
| KR101596212B1 (en) * | 2015-04-29 | 2016-02-23 | 주식회사 제이텍 | Adhesive film for removing optical clear adhesives, method for preparing the same, and remove method of optical clear adhesives on touch screen panel |
-
2017
- 2017-09-14 CN CN201710828075.2A patent/CN107639916A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203197984U (en) * | 2013-02-21 | 2013-09-18 | 苏州欧菲光科技有限公司 | Jig for disassembling TP and LCM |
| KR101596212B1 (en) * | 2015-04-29 | 2016-02-23 | 주식회사 제이텍 | Adhesive film for removing optical clear adhesives, method for preparing the same, and remove method of optical clear adhesives on touch screen panel |
| CN104960313A (en) * | 2015-07-17 | 2015-10-07 | 深圳晶华显示器材有限公司 | Process method for reworking after TP full lamination |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110096183A (en) * | 2019-05-09 | 2019-08-06 | 芜湖伦丰电子科技有限公司 | A kind of reworking method of capacitance touch screen |
| CN110328637A (en) * | 2019-07-04 | 2019-10-15 | 淮北摩兰科技有限公司 | A kind of disassembling method and fixture of flexible screen and TP |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180130 |
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| RJ01 | Rejection of invention patent application after publication |