CN106739415A - A kind of implementation method of improved full attaching process - Google Patents
A kind of implementation method of improved full attaching process Download PDFInfo
- Publication number
- CN106739415A CN106739415A CN201611140270.8A CN201611140270A CN106739415A CN 106739415 A CN106739415 A CN 106739415A CN 201611140270 A CN201611140270 A CN 201611140270A CN 106739415 A CN106739415 A CN 106739415A
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- CN
- China
- Prior art keywords
- glue
- screens
- irradiations
- lcd substrate
- solidification
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- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B2037/1253—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives curable adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/208—Touch screens
Landscapes
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of implementation method of improved full attaching process, the starved that is produced to full attaching process, excessive glue, especially there are problems that shadow region UV glue is difficult solidification and UV glue is constantly studied to CG screen surroundings, and propose the application of silk-screen printing coating technique, increase precuring, reverse side UV irradiations, side UV irradiations, change plastic pallet in heated drying and be changed to the countermeasures such as metal tray.The present invention is greatly reduced because the screen jaundice of the uncured cause of UV glue is bad, reaches the purpose for stably producing.
Description
Technical field
The present invention relates to touch display screen processing technology field, specifically a kind of realization side of improved full attaching process
Method.
Background technology
With the continuous progress of science and technology, mobile phone screen user it is also proposed more and more fastidious requirement to smart mobile phone：More
Thin, lighter, more preferable display effect.Mobile phone screen producer also racks one's brains, and excavates bright spot, and a new display screen manufacturing technology is complete
Coating technique arises at the historic moment, and it meets and realize these requirements well.
The construction of traditional touch display screen, is typically constituted by three pieces：CG screens+touch-screen+liquid crystal display, need in assembling process
Will be by 2 laminatings.The wherein laminating of touch-screen and liquid crystal display typically employs the mode of frame patch (hollow double faced adhesive tape), in liquid
Just there is layer of air layer between crystalline substance screen and touch-screen.Because the refractive index of air and glass is differed, light is every time by glass
With the interface of air, primary event can be all caused, boundary layer is more, the number of times for reflecting is also more, causes liquid crystal display
Backlight provides the loss of light source, while the light in the external world can be reflected by these boundary layers, glare is produced, so as to influence customer
Use.In addition, three modules are needed by fitting twice, high cost, operation is more, and that causes is bad also relatively more.
In order to meet the requirement of cell phone customers, mobile phone screen manufacturer is mainly studied in terms of following two：①
Reduce the number of times of laminating；2. applying method is improved.In order to reduce laminating number of times, each producer have developed In-Cell, On-Cell,
The isostructural display screens of OGS.Such construction is using laminating number of times by being reduced to twice once.As the improvement side of applying method
Face, mobile phone screen manufacturer uses LOCA (Liquid Optical Clear Adhesive, liquid optical cement) by CG screens and liquid
Crystalline substance screen is fitted entirely, because the refractive index after LOCA optics adhesive curings is almost consistent with glass, and fit after thickness it is usual
Control in 0.1mm~0.2mm or so, so having the advantages that slim and graceful, slim, display effect is good using the screen of this technology.
Full coating technique is divided into OCA, and laminating and LOCA fit entirely entirely.OCA (Optically Clear Adhesive, OCA
Optical cement) full laminating is that two surfaces are fitted with optically transparent one layer extraordinary double faced adhesive tape, advantage：It is cheap, make
Industry is convenient.Shortcoming：Easily produce adhesive tape fold, bubble, to reprocess success rate low.LOCA is to be carried out two surfaces with liquid glue
Laminating, its cost is more expensive compared to the full jointing products of OCA.Updating and develop however as technology, price has also declined.
Current OCA is just fitted and is replaced entirely with the LOCA of UV glue.
The UV glue of the BM of CG screens can not be irradiated to due to ultraviolet in the full attaching process of prior art, cause surrounding to occur
Excessive glue phenomenon and uncured UV glue invade the interlayer of lower Polarizer, cause the xanthochromia heaved and cause of Polarizer end face
Phenomenon.
The content of the invention
It is an object of the invention to provide a kind of implementation method of improved full attaching process, fitted entirely with solving prior art
The problem that technique is present.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of implementation method of improved full attaching process, it is characterised in that：Comprise the following steps：
(1), in the environment of vacuum, intensive uniform aperture has been covered with using silk-screen printing coating technique, on half tone, has been allowed
UV glue flows to the printing surface of CG screens from these Process, the printing surface of CG screens is covered with the UV glue of intensive uniform point-like, energy
The coating weight of control UV glue, prevents the spilling of UV glue well；
(2), CG screens and LCD substrate are sticked together：It is fixed after laminating placed face down using abutted equipment by CG screens,
Slowly rise after the contraposition of LCD binding faces, eventually settle at a fixed gap, by capillary principle, be uniformly extended to and reach
The edge in gap, the thickness in gap is generally in 0.1mm-0.2mm；
(3), UV solidification process, specifically includes following steps：
(3.1), two points on product diagonal are fixed to carry out precuring；
(3.2) UV irradiations, are carried out using UV light irradiation devices in the front of LCD substrate and realizes solidification, the product after solidification
Carry out reliability testing；
(3.3), the reverse side in LCD substrate carries out reverse side UV irradiations,
(3.4) UV light irradiation devices, are added in the FPC sides of LCD substrate, from side to from front illuminated less than and it is uncured
UV glue be irradiated；
(3.5), fast using heat transfer, breezy metal tray carries out heated drying.
Compared with the prior art, beneficial effects of the present invention are embodied in：
The present invention can effectively solve the problems, such as starved, excessive glue and the screen regional jaundice produced during laminating, progressively
Yields is improve, the purpose for stably producing quality is reached.
Brief description of the drawings
Fig. 1 is principle schematic of being fitted in the specific embodiment of the invention.
Fig. 2 is precuring principle schematic in the specific embodiment of the invention.
Fig. 3 is UV irradiation principle schematics in front in the specific embodiment of the invention.
Fig. 4 a are reverse side UV irradiation principle schematics in the specific embodiment of the invention.
Fig. 4 b are each area schematic when positive and negative UV irradiates in the specific embodiment of the invention.
Fig. 5 is UV irradiation principle schematics in side in specific embodiment.
Specific embodiment
Process of the present invention is as follows：
1st, in the environment of vacuum, intensive uniform aperture has been covered with using silk-screen printing coating technique, on half tone, has allowed UV
Glue flows to the printing surface of CG screens from these Process, the printing surface of CG screens is covered with the UV glue of intensive uniform point-like.Its is excellent
Point is the coating weight that can well control UV glue, prevents the spilling of UV glue.
2nd, laminating is exactly that CG screens and LCD substrate are sticked together.Abutted equipment will be fixed after the laminating placed face down of CG screens,
Slowly rise after the contraposition of LCD binding faces, eventually settle at a fixed gap, by capillary principle, be uniformly extended to and reach
The edge in gap.The thickness in gap generally in 0.1mm-0.2mm, as shown in Figure 1.
3rd, UV solidification process is included:Precuring, front reverse side UV irradiations, side UV irradiations, the several processes of heated drying.
(1) precuring：Increase precuring operation and be mainly reduction product and do over again scrappage, reduce product cost.Precuring
Typically two points on product diagonal are fixed.So there are two benefits:On the one hand we, will not in Product checking
Produce the situation that skew is caused due to the touching of hand or equipment；On the other hand, when defective products has been detected, can be filled using peeling off
Put, easily separated CG screens and LCD substrate very much.As shown in Figure 2.
(2) front UV irradiations：Precuring is that certain some or certain position is solidified, and it is exactly to entire surface to solidify
It is fully cured, even if making it that the fracture or stripping of UV glue will not be also produced under rugged environment, as shown in Figure 3.
For guaranteed quality, it is necessary to carry out reliability testing to the product after solidification, even if to ensure the user of mobile phone
Reach than also can normally be used under relatively rugged environment.General reliability items are as shown in table 1：
Table 1 is reliability items table
(3) reverse side UV irradiations：Reverse side UV irradiations are exactly to be irradiated from the negative, as shown in fig. 4 a.
UV irradiations in front make the UV adhesive curings of a-quadrant in Fig. 4 b, reverse side UV irradiations make the UV adhesive curings in C regions in Fig. 4 b,
But the UV glue in position C regions as shown in fig 4b, because UV light can not be irradiated to, it is impossible to be fully cured, this is accomplished by and heat
Drying is combined.
(4) side UV irradiations：As shown in figure 5, there is no xanthochromia region due to UV light in schematic diagram when UV light irradiations solidify
UV glue can be shone directly into, UV glue can just be fully cured；And there is black coating xanthochromia generation area due to CG screens, UV light is led
Less than UV glue, the glue at this position is uncured or liquid for irradiation.
Add UV light irradiation devices in the FPC sides of substrate, from side to from front illuminated less than and uncured UV glue enters
Row irradiation.To a certain extent solidified uncured UV glue, so as to prevent intrusion of the UV glue to upper Polarizer end face,
Reduce the change of polarisation plate thickness, so as to be slow down in degree to a certain degree LCD CF and
The change in gap between TFT, improves the phenomenon of xanthochromia and the continuous overflow problem of UV glue is chased after in the FPC sides of substrate
Plus UV light irradiation devices, from side to from front illuminated less than and uncured UV glue is irradiated.Make to a certain extent not
The UV glue of solidification is solidified, and so as to prevent intrusion of the UV glue to upper Polarizer end face, reduces the change of polarisation plate thickness,
So as to the change in gap between in journey to a certain degree slow down the CF of LCD and TFT, improve xanthochromia phenomenon and UV glue it is continuous
Overflow problem.
(5) heated drying：Heated drying process is fast using heat transfer, breezy metal tray.
Claims (1)
1. a kind of implementation method of improved full attaching process, it is characterised in that：Comprise the following steps：
（1）, in the environment of vacuum, intensive uniform aperture has been covered with using silk-screen printing coating technique, on half tone, allow UV glue
The printing surface of CG screens is flowed to from these Process, the printing surface of CG screens is covered with the UV glue of intensive uniform point-like, can be very well
Control UV glue coating weight, prevent the spilling of UV glue；
（2）, CG screens and LCD substrate sticked together：It is fixed after laminating placed face down using abutted equipment by CG screens, LCD
Slowly rise after binding face contraposition, eventually settle at a fixed gap, by capillary principle, be uniformly extended to up to gap
Edge, the thickness in gap is generally in 0.1mm-0.2mm；
（3）, UV solidification process, specifically include following steps：
（3.1）, two points on product diagonal are fixed to carry out precuring；
（3.2）, UV irradiations carried out using UV light irradiation devices in the front of LCD substrate realize solidification, the product after solidification carries out
Reliability testing；
（3.3）, in the reverse side of LCD substrate carry out reverse side UV irradiations,
（3.4）, in the FPC sides of LCD substrate add UV light irradiation devices, from side to from front illuminated less than and it is uncured
UV glue is irradiated；
（3.5）, it is fast using heat transfer, breezy metal tray carries out heated drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611140270.8A CN106739415A (en) | 2016-12-12 | 2016-12-12 | A kind of implementation method of improved full attaching process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611140270.8A CN106739415A (en) | 2016-12-12 | 2016-12-12 | A kind of implementation method of improved full attaching process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106739415A true CN106739415A (en) | 2017-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611140270.8A Pending CN106739415A (en) | 2016-12-12 | 2016-12-12 | A kind of implementation method of improved full attaching process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108549172A (en) * | 2018-04-19 | 2018-09-18 | 张家港康得新光电材料有限公司 | A kind of display device |
| CN109825245A (en) * | 2018-12-30 | 2019-05-31 | 苏州桐力光电股份有限公司 | A kind of full fitting liquid crystal module sealing technology |
| CN113777815A (en) * | 2021-09-07 | 2021-12-10 | 深圳市祥晖光电有限公司 | High-precision rapid laminating process for intelligent terminal lens |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896871A (en) * | 2011-07-28 | 2013-01-30 | 信特精密设备（深圳）有限公司 | Bonding method of substrate |
| CN103182367A (en) * | 2011-12-27 | 2013-07-03 | 比亚迪股份有限公司 | Method for curing ultraviolet (UV) adhesive on back of flexible printed circuit (FPC) of UV adhesive attached touch screen |
| CN104656998A (en) * | 2015-03-20 | 2015-05-27 | 欧浦登（顺昌）光学有限公司 | Full lamination bent touch display screen and manufacturing process thereof |
-
2016
- 2016-12-12 CN CN201611140270.8A patent/CN106739415A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896871A (en) * | 2011-07-28 | 2013-01-30 | 信特精密设备（深圳）有限公司 | Bonding method of substrate |
| CN103182367A (en) * | 2011-12-27 | 2013-07-03 | 比亚迪股份有限公司 | Method for curing ultraviolet (UV) adhesive on back of flexible printed circuit (FPC) of UV adhesive attached touch screen |
| CN104656998A (en) * | 2015-03-20 | 2015-05-27 | 欧浦登（顺昌）光学有限公司 | Full lamination bent touch display screen and manufacturing process thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108549172A (en) * | 2018-04-19 | 2018-09-18 | 张家港康得新光电材料有限公司 | A kind of display device |
| CN109825245A (en) * | 2018-12-30 | 2019-05-31 | 苏州桐力光电股份有限公司 | A kind of full fitting liquid crystal module sealing technology |
| CN109825245B (en) * | 2018-12-30 | 2022-04-01 | 苏州桐力光电股份有限公司 | Full-lamination liquid crystal module sealing process |
| CN113777815A (en) * | 2021-09-07 | 2021-12-10 | 深圳市祥晖光电有限公司 | High-precision rapid laminating process for intelligent terminal lens |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |