CN111831143B - Flexible touch panel and preparation method thereof - Google Patents
Flexible touch panel and preparation method thereof Download PDFInfo
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- CN111831143B CN111831143B CN201910324360.XA CN201910324360A CN111831143B CN 111831143 B CN111831143 B CN 111831143B CN 201910324360 A CN201910324360 A CN 201910324360A CN 111831143 B CN111831143 B CN 111831143B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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Abstract
According to the manufacturing method of the flexible touch panel, a large flexible display module and a large flexible touch layer are attached together, further, laser cutting is conducted to form a single-grain flexible touch panel substrate, then, a touch layer FPC is bound with a second binding area, a display module FPC is bound with a first binding area, finally, the display module FPC is attached to a flexible protection cover plate, and the flexible touch panel is manufactured. Compared with the traditional single-grain processing and manufacturing method, the manufacturing method disclosed by the invention has the advantages that the large-grain substrate is manufactured and then is subjected to laser cutting to form the single-grain flexible touch panel substrate, the manufacturing method greatly improves the production efficiency of the flexible touch panel, reduces the labor cost, shortens the manufacturing period and enhances the market competitiveness of the product.
Description
Technical Field
The invention relates to the technical field of touch control, in particular to a flexible touch panel and a preparation method thereof.
Background
With the development of the display technology field, the flexible display technology gradually becomes a hot application of the current electronic display, and the flexible touch panel developed by the development of the flexible display technology has been popularized and applied to various products in the flexible display field.
Flexible display devices are made using flexible substrates, typically active organic light emitting diodes
The technology (active matrix organic light emitting diode, AMOLED) or polymer light-emitting diode (PLED) has the advantages of low power consumption, direct visualization, flexibility in a variable manner, lightness, thinness, impact resistance, difficult damage, capability of being installed on a curved surface, capability of being manufactured into a wearable display and the like, and will become the mainstream in the display field in the future.
However, most of the existing flexible touch panels are manufactured in a single-grain manner, and the process is to combine the single-grain flexible touch layer with other parts, further attach the single-grain flexible touch layer to the flexible protective cover plate, and further attach the single-grain flexible display module to the single-grain flexible display module, that is, process and manufacture the single-grain flexible touch panel. The manufacturing method has the advantages of low production efficiency, high labor cost and longer manufacturing period, and is not beneficial to the development of large-scale production.
Disclosure of Invention
Therefore, a flexible touch panel and a manufacturing method thereof need to be designed to solve the problems of low production efficiency, high labor cost and long production and manufacturing period.
A preparation method of a flexible touch panel comprises the following preparation steps:
s01: marking a first alignment target on a large flexible display module, and marking a plurality of single-grain flexible display modules and a plurality of first binding regions on the large flexible display module, wherein each first binding region is arranged in each single-grain flexible display module in a one-to-one correspondence manner;
s02: marking a second alignment target on a large flexible touch layer, and marking a plurality of single-grain flexible touch layers and a plurality of second binding areas on the large flexible touch layer, wherein each second binding area is correspondingly arranged in each single-grain flexible touch layer one by one;
s03: preparing an optical adhesive to obtain a first optical film and a second optical film;
s04: punching a third alignment target and a plurality of first openings on the first optical film;
s05: attaching the first optical film to the large flexible touch layer, wherein the third alignment targets and the second alignment targets are arranged in alignment, and the first openings are arranged in alignment with the second binding areas in a one-to-one correspondence manner;
s06: punching a fourth alignment target and a plurality of second openings on the second optical film;
s07: attaching the second optical film to a side surface, away from the first optical film, of the large flexible touch layer, aligning the fourth alignment target with the second alignment target, and punching the large flexible touch layer and the first optical film at positions corresponding to the second openings to obtain a third opening and a fourth opening;
s08: attaching an assembly of the first optical film, the large flexible touch layer and the second optical film to the large flexible display module, wherein the second optical film is attached to the large flexible display module, the first alignment target is aligned with the fourth alignment target, the single-grain flexible touch layers are aligned with the single-grain flexible display modules one by one, and each first binding region is aligned with one of the second opening, one of the third opening and one of the fourth opening;
s09: the first optical film, the large flexible touch layer, the second optical film and the large flexible display module are attached to obtain a large flexible touch panel;
s10: performing laser cutting on the large flexible touch panel at the position of each single flexible touch layer and the corresponding single flexible display module;
s11: respectively binding a touch layer FPC and a display module FPC in the second binding region of the single-grain flexible touch layer and the first binding region of the single-grain flexible display module;
s12: and the flexible protective cover plate is attached to the first optical film of the single flexible touch layer by means of the pressure of the roller, so that the flexible touch panel is obtained.
In one embodiment, the large flexible display module is an AMOLED large flexible display module or a micro led large flexible display module.
In one embodiment, a space is provided between the first opening and the fourth opening.
In one embodiment, the large flexible touch layer is a silver nanowire touch layer substrate, a metal mesh touch layer substrate or a graphene touch layer substrate.
In one embodiment, the attaching speed of the second optical film attached to the large flexible touch layer is 200 mm/s-300 mm/s.
In one embodiment, the punching of the large flexible touch layer and the first optical film is performed in a hydraulic manner, wherein the hydraulic pressure is 3Mpa to 7Mpa, the hydraulic pressurization time is 0.5S to 1.1S, and the hydraulic pressure holding time is 0.1S to 0.2S.
In one embodiment, the speed of the laser cutting is 500 mm/s-2800 mm/s, and the frequency of the laser cutting is 20 Hz-70 Hz.
In one embodiment, the binding operation temperature is 180-280 ℃, and the binding operation time is 5-20S.
In one embodiment, the speed of the roller is 20 mm/s-100 mm/s.
The invention also provides a flexible touch panel, which is prepared by the preparation method of the flexible touch panel, and the flexible touch panel comprises the following components: the flexible display module assembly, set gradually in display module assembly FPC, second optics film and flexible touch-control layer on the flexible display module assembly, and set up in the flexible touch-control layer is kept away from touch-control layer FPC, first optics film and the flexible protection apron of flexible display module assembly one side.
In the manufacturing method of the flexible touch panel, the large flexible display module and the large flexible touch layer are bonded together, the single flexible touch panel substrate is further cut by laser, the touch layer FPC is further bonded with the second bonding area, the display module FPC is bonded with the first bonding area, and finally the display module FPC is bonded with the flexible protective cover plate, so that the flexible touch panel is manufactured. Compared with the traditional single-grain processing and manufacturing method, the manufacturing method disclosed by the invention has the advantages that the large-grain manufacturing is adopted, and then the laser cutting is carried out to obtain the single-grain flexible touch panel substrate, so that the manufacturing method greatly improves the production efficiency of the flexible touch panel, reduces the labor cost, shortens the manufacturing period and enhances the market competitiveness of the product.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a flowchart of a method for manufacturing a flexible touch panel according to the present invention;
fig. 2 is a schematic structural diagram of a flexible touch panel according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a large-sized flexible display module according to the present invention;
FIG. 4 is a schematic structural diagram of a large flexible touch layer according to the present invention;
FIG. 5 is a schematic diagram of a first optical film of the present invention;
fig. 6 is a schematic structural diagram of a combination of a large flexible touch layer, a first optical film and a second optical film according to the present invention;
fig. 7 is a schematic structural diagram of a flexible touch panel according to another embodiment of the invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The single-grain flexible touch panel is manufactured mostly on the basis of the existing flexible touch panel, the single-grain flexible touch layer is combined with other parts in the process, and further, the single-grain flexible touch panel is attached to a flexible protective cover plate and then is assembled and attached to a single-grain flexible display module, namely, the single-grain flexible touch panel is manufactured. The manufacturing method has the problems of low production efficiency, high labor cost, long manufacturing period and no contribution to the development of large-scale production.
Aiming at the problems of low production efficiency, high labor cost and long production and manufacturing period, the preparation method of the flexible touch panel is provided.
Please refer to fig. 1, which is a flowchart illustrating a method for manufacturing a flexible touch panel according to an embodiment of the present invention. The manufacturing method provided by the embodiment can be applied to manufacturing the flexible touch panel, and can solve the problems of low production efficiency, high labor cost and long production and manufacturing period of the original flexible touch panel.
The preparation method of the flexible touch panel provided by the embodiment can comprise the following steps of:
s01: the method comprises the steps of marking a first alignment target on a large flexible display module, marking a plurality of single-grain flexible display modules and a plurality of first binding areas on the large flexible display module, wherein each first binding area is arranged in each single-grain flexible display module in a one-to-one correspondence mode.
S02: marking a second alignment target on a large flexible touch layer, marking a plurality of single-grain flexible touch layers and a plurality of second binding areas on the large flexible touch layer, wherein each second binding area is arranged in each single-grain flexible touch layer in a one-to-one correspondence manner.
It should be noted that, through steps S01 and S02, a plurality of single-grain flexible display modules and a plurality of first binding regions can be marked on the large-sized flexible display module, and each first binding region is correspondingly arranged in each single-grain flexible display module one to one; the single-grain flexible display module comprises a large flexible touch layer, a plurality of single-grain flexible touch layers, second binding regions, first alignment targets and second alignment targets, wherein the single-grain flexible touch layers are marked on the large flexible touch layer, the second binding regions are arranged in the single-grain flexible touch layers in a one-to-one correspondence mode, the first alignment targets are marked on the large flexible display module, the second alignment targets are marked on the large flexible touch layer, the second alignment targets are arranged in an alignment mode with the first alignment targets, the large flexible display module can be aligned and attached to the large flexible touch layer more accurately, and each single-grain flexible touch layer can be aligned and arranged with each single-grain flexible display module in a one-to-one correspondence mode.
Furthermore, the marking and opening operation of the first alignment target and the second alignment target is carried out by adopting a laser process, so that the alignment targets can be marked more accurately, and the efficiency is higher.
For example, the large flexible display module is an AMOLED large flexible display module or a micro led large flexible display module.
For example, the large flexible touch layer is a nano silver wire touch layer substrate, a metal grid touch layer substrate or a graphene touch layer substrate.
S03: and preparing the optical adhesive to obtain a first optical film and a second optical film.
Therefore, the large flexible display module and the large flexible touch layer are convenient to use in gluing.
S04: a third alignment target and a plurality of first openings are punched in the first optical film.
In one embodiment, the first optical film is punched by hydraulic means, preferably by hydraulic means, wherein the pressure of the hydraulic pressure is 3Mpa to 7Mpa, the pressurization time of the hydraulic pressure is 0.5S to 1.1S, and the pressure maintaining time of the hydraulic pressure is 0.1S to 0.2S.
S05: and the first optical film is attached to the large flexible touch layer, the third alignment target and the second alignment target are arranged in alignment, the first openings correspond to the second binding areas in a one-to-one correspondence mode and are arranged in alignment, and the second binding areas can be exposed after the first optical film is attached to the large flexible touch layer.
It should be noted that the first optical film and the large flexible touch layer are attached by using a large attaching machine, and the attaching speed is 200mm/s to 300mm/s.
S06: a fourth alignment target and a plurality of second openings are punched in the second optical film.
In one embodiment, the second optical film is punched hydraulically, preferably hydraulically, with a pressure of 3Mpa to 7Mpa, a pressure time of 0.5S to 1.1S, and a dwell time of 0.1S to 0.2S.
S07: and attaching the second optical film to a side surface of the large flexible touch layer, which is far away from the first optical film, aligning the fourth alignment target with the second alignment target, and punching the large flexible touch layer and the first optical film at positions corresponding to the second openings to obtain a third opening and a fourth opening.
It should be noted that the second optical film is attached to the large flexible touch layer by using a large attaching machine, and the attaching speed of the second optical film attached to the large flexible touch layer is 200mm/s to 300mm/s.
S08: and (3) laminating the first optical film, the large flexible touch layer and the assembly of the second optical film on the large flexible display module, wherein the second optical film is laminated with the large flexible display module, the first alignment target is aligned with the fourth alignment target, the single-grain flexible touch layers are aligned with the single-grain flexible display modules in a one-to-one correspondence manner, and each first binding region is aligned with the second opening, the third opening and the fourth opening respectively.
For example, the punching of the large flexible touch layer and the first optical film is performed in a hydraulic manner, the hydraulic pressure is 3 Mpa-7 Mpa, the hydraulic pressurization time is 0.5S-1.1S, and the hydraulic pressure holding time is 0.1S-0.2S, and the punching of the large flexible touch layer and the first optical film to obtain the third opening and the fourth opening aims to expose the first binding area after the assembly of the first optical film, the large flexible touch layer and the second optical film is attached to the large flexible display module, so that the display module is bound to the first binding area, and the subsequent hot-pressing operation is facilitated.
S09: and attaching the first optical film, the large flexible touch layer, the second optical film and the large flexible display module to obtain the large flexible touch panel.
S10: and carrying out laser cutting on the large flexible touch panel at the position of each single-grain flexible touch layer and the corresponding single-grain flexible display module.
For example, the laser cutting speed is 500mm/s to 2800mm/s, and the laser cutting frequency is 20Hz to 70Hz, in the manufacturing method provided by the embodiment of the present invention, the laser cutting speed is 1200mm/s, and the laser cutting frequency is 50Hz.
S11: and respectively binding the touch layer FPC and the display module FPC in the second binding area of the single-grain flexible touch layer and the first binding area of the single-grain flexible display module.
For example, the binding operation temperature is 180 ℃ to 280 ℃, and the binding operation time is 5S to 20S.
S12: and the flexible protective cover plate is attached to the first optical film of the single flexible touch layer by means of the pressure of the roller, so that the flexible touch panel is obtained.
For example, the flexible protective cover plate is attached to the first optical film of the single-grain flexible touch panel substrate by means of the pressure of a roller, the speed of the roller is 20 mm/s-100 mm/s, and in the manufacturing method provided by the embodiment of the invention, the speed of the roller is 80mm/s.
The preparation method of the flexible touch panel provided by the embodiment of the invention mainly comprises the steps of attaching the large flexible display module to the large flexible touch layer, further cutting the large flexible display module into the single-grain flexible touch panel substrate by laser, further binding a flexible printed circuit board (FPC) of the touch layer with a second binding region, binding a display module FPC with a first binding region, and finally attaching the display module FPC to a flexible protective cover plate, so as to manufacture the flexible touch panel. Compared with the traditional single-grain processing and manufacturing method, the manufacturing method disclosed by the invention has the advantages that the large-grain substrate is manufactured and then is subjected to laser cutting to form the single-grain flexible touch panel substrate, the manufacturing method greatly improves the production efficiency of the flexible touch panel, reduces the labor cost, shortens the manufacturing period and enhances the market competitiveness of the product.
Based on the manufacturing method of the flexible touch panel provided by each embodiment of the invention, an embodiment of the invention also provides a flexible touch panel, and the flexible touch panel is manufactured by the manufacturing method provided by any embodiment of the invention.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a flexible touch panel according to an embodiment of the present invention. The flexible touch panel 10 provided by the embodiment of the present invention may include: the flexible display module 100 is sequentially arranged on the display module FPC200, the second optical film 300 and the flexible touch layer 400 on the flexible display module 100, and is arranged on the flexible touch layer 400 far away from the touch layer FPC500, the first optical film 600 and the flexible protective cover plate 700 on one side of the flexible display module 100.
Referring to fig. 2, the first binding region 101 is disposed on the flexible display module 100, the display module FPC200 is disposed in the first binding region 101, the second binding region 401 is disposed on the flexible touch layer 400, and the touch layer FPC500 is disposed in the second binding region 401.
In the manufacturing method of the flexible touch panel, the large flexible display module and the large flexible touch layer are bonded together, further, the single flexible touch panel substrate is cut by laser, then, a flexible circuit board (FPC) of the touch layer is bonded with the second bonding region, a display module FPC is bonded with the first bonding region, and finally, the display module FPC is bonded with the flexible protective cover plate, so that the flexible touch panel is manufactured. Compared with the traditional single-grain processing and manufacturing method, the manufacturing method disclosed by the invention has the advantages that the large-grain substrate is manufactured and then is subjected to laser cutting to form the single-grain flexible touch panel substrate, the manufacturing method greatly improves the production efficiency of the flexible touch panel, reduces the labor cost, shortens the manufacturing period and enhances the market competitiveness of the product.
In order to better understand the contents of the present invention, the following embodiment is further illustrated as a specific example:
a preparation method of a flexible touch panel comprises the following steps:
a. the performance of a large flexible display module 300a is detected, and a qualified large flexible display module is selected, wherein the large flexible display module 300a is composed of a plurality of single-grain flexible display modules 30a arranged in an array, the large flexible display module 300a further comprises a first alignment target 301, the single-grain display module 30 further comprises a first binding region 302, the large flexible display module 300a can be an AMOLED flexible display module or a flexible MicroLED flexible display module, and the embodiment is the AMOLED flexible display module, as shown in FIG. 3.
b. The performance of a large flexible touch layer 200a is detected, a qualified large flexible touch layer is selected, the large flexible touch layer 200a is composed of a plurality of single-grain flexible touch layers 20a arranged in an array, the large flexible touch layer 200a further comprises a second alignment target 201, the single-grain flexible touch layer 20a further comprises a second binding area 202, the second binding area 202 and the first binding area 302 of the flexible display module are not in the same vertical direction, the conductive material of the large flexible touch layer 200a can be nano silver wires, metal grids or graphene and the like, the embodiment is nano silver wires, and fig. 4 shows.
c. Laminating the second optical film 2a of the large film on the non-conductive surface of the large flexible touch layer 200a by using a large laminating machine, wherein the laminating speed is as follows: 200-300mm/s, 260mm/s in this embodiment.
d. The first optical film 1a is punched with the first opening 11 and the third alignment target 12, and an oil pressure punching method is adopted, preferably, an oil pressure: 3-7Mpa, pressurization time: 0.5-1.1S, dwell time: 0.1-0.2S, the purpose of punching the opening is to expose the second binding region 202 of the single flexible touch layer 20a after the first optical film 1a is attached to the large flexible touch layer 200a, so as to facilitate the subsequent hot-pressing process, as shown in fig. 5.
e. The laminating of large-scale rigging machine of automatic counterpointing is passed through with first optical film 1a to large-scale touch-control layer 200a, and through snatching second counterpoint target 201 and the 12 counterpoint laminating of third counterpoint target, district 202 adaptations are bound with the second of the flexible touch-control layer 20a of single grain to first opening 11 of first optical film 1a, and the laminating back can be bound the second and distinguish 202 and expose, laminating speed: 200-300mm/s, in this example 280mm/s.
f. Opening 21 is punched out to large flexible touch-control layer 200a, the assembly of first optical film 1a and second optical film 2a three, promptly, trompil 21 wears to establish first optical film 1a, large flexible touch-control layer 200a and second optical film 2a in proper order, the first district 302 looks adaptation that binds of opening 21's position and large flexible display module assembly 300a, the purpose is that can expose first binding district 302 after both laminating, make things convenient for follow-up hot pressing process, preferred, oil pressure: 3-7Mpa, pressurization time: 0.5-1.1S, dwell time: 0.1-0.2S, as shown in FIG. 6.
g. The assembly of the first optical film 1a, the large flexible touch layer 200a and the second optical film 2a is attached to the large flexible display module 300a, preferably, the second optical film 2a of the large flexible touch layer 200a is attached to the display surface of the large flexible display module 300a, preferably, the second alignment target 201 of the large flexible touch layer 200a and the first alignment target 301 on the large flexible display module 300a corresponding to the second alignment target are respectively grabbed through the attachment of an automatic alignment large attachment machine, and the opening 21 of the assembly of the first optical film 1a, the large flexible touch layer 200a and the second optical film 2a is ensured to be adapted to the first binding area 302, so that the first binding area 302 is exposed, the subsequent hot pressing process is facilitated, preferably, the attachment speed is as follows: 200-300mm/s, in this example 280mm/s.
h. Laser cutting the single sheet, preferably at a speed of 500-2800mm/s and a frequency of 20-70Hz, preferably at a speed of 1200mm/s and a frequency of 50Hz.
j. The method comprises the following steps of binding a touch layer FPC203 (flexible printed circuit board) and a display module FPC303 to a second binding region 202 of a single-grain flexible touch layer and a first binding region 302 of a single-grain flexible display module respectively, wherein the second binding region 202 of the single-grain touch layer and the first binding region 302 of the single-grain flexible display module are not in the same vertical position, preferably, the binding temperature is: 180-280 ℃, binding time: 5-20S.
k. Further, in combination with the flexible protective cover 10a, the speed of the roller is preferably: 20-100mm/s, this example is: 80mm/s, sequentially comprises from top to bottom: the display device comprises a flexible protective cover plate 10a, a first optical film 1a, a single-grain flexible touch layer 20a, a second optical film 2a and a single-grain flexible display module 30a, as shown in fig. 7.
In this embodiment, the large flexible touch layers 200a arranged in an array and the large flexible display modules 300a arranged in an array are bonded together, further, laser is cut into single pieces, then, the single flexible touch layer FPC203 (flexible circuit board) and the single flexible display module FPC303 are respectively bonded with the single flexible touch layer second bonding region 202 and the single flexible display module first bonding region 302, and finally, the single flexible touch layers and the single flexible display modules are bonded with the flexible protective cover plate 10a and processed into the flexible touch panel of this embodiment. Compared with the traditional single-grain processing and manufacturing method, the large-piece manufacturing method is adopted in the embodiment, the production efficiency of the flexible touch panel is greatly improved, the labor cost is reduced, the manufacturing period is shortened, and the market competitiveness of the product is enhanced.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above embodiments only express a few embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A preparation method of a flexible touch panel is characterized by comprising the following preparation steps:
s01: marking a first alignment target on a large flexible display module, and marking a plurality of single-grain flexible display modules and a plurality of first binding regions on the large flexible display module, wherein each first binding region is arranged in each single-grain flexible display module in a one-to-one correspondence manner;
s02: marking a second alignment target on a large flexible touch layer, and marking a plurality of single-grain flexible touch layers and a plurality of second binding areas on the large flexible touch layer, wherein each second binding area is correspondingly arranged in each single-grain flexible touch layer one by one;
s03: preparing an optical adhesive to obtain a first optical film and a second optical film;
s04: punching a third alignment target and a plurality of first openings on the first optical film;
s05: attaching the first optical film to the large flexible touch layer, wherein the third alignment target and the second alignment target are arranged in alignment, and the first openings are arranged in alignment with the second binding areas in a one-to-one correspondence manner;
s06: punching a fourth alignment target and a plurality of second openings on the second optical film;
s07: attaching the second optical film to a side surface, away from the first optical film, of the large flexible touch layer, aligning the fourth alignment target with the second alignment target, and punching the large flexible touch layer and the first optical film at positions corresponding to the second openings to obtain a third opening and a fourth opening;
s08: attaching an assembly of the first optical film, the large flexible touch layer and the second optical film to the large flexible display module, wherein the second optical film is attached to the large flexible display module, the first alignment target is aligned with the fourth alignment target, the single-grain flexible touch layers are aligned with the single-grain flexible display modules one by one, and each first binding region is aligned with one of the second opening, one of the third opening and one of the fourth opening;
s09: the first optical film, the large flexible touch layer, the second optical film and the large flexible display module are attached to obtain a large flexible touch panel;
s10: performing laser cutting on the large flexible touch panel at the position of each single-grain flexible touch layer and the corresponding single-grain flexible display module;
s11: binding a touch layer FPC and a display module FPC in the second binding area of the single flexible touch layer and the first binding area of the single flexible display module respectively;
s12: and the flexible protective cover plate is attached to the first optical film of the single flexible touch layer by means of the pressure of the roller, so that the flexible touch panel is obtained.
2. The method for manufacturing the flexible touch panel according to claim 1, wherein the large flexible display module is an AMOLED large flexible display module or a micro led large flexible display module.
3. The method of claim 1, wherein a space is provided between the first opening and the fourth opening.
4. The method of claim 1, wherein the large flexible touch layer is a nano-silver wire touch layer substrate, a metal mesh touch layer substrate, or a graphene touch layer substrate.
5. The method of claim 1, wherein the speed of the second optical film being attached to the large flexible touch layer is 200mm/s to 300mm/s.
6. The method of claim 1, wherein the punching of the large flexible touch layer and the first optical film is performed by hydraulic pressure, wherein the hydraulic pressure is 3Mpa to 7Mpa, the hydraulic pressure applying time is 0.5S to 1.1S, and the hydraulic pressure maintaining time is 0.1S to 0.2S.
7. The method for manufacturing the flexible touch panel according to claim 1, wherein the laser cutting speed is 500mm/s to 2800mm/s, and the laser cutting frequency is 20Hz to 70Hz.
8. The method of claim 1, wherein the binding temperature is 180-280 ℃ and the binding time is 5-20S.
9. The method of claim 1, wherein the speed of the roller is 20mm/s to 100mm/s.
10. A flexible touch panel, wherein the flexible touch panel is manufactured by the method for manufacturing a flexible touch panel according to any one of claims 1 to 9, and the flexible touch panel comprises: the flexible display module assembly, set gradually in display module assembly FPC, second optics film and flexible touch-control layer on the flexible display module assembly, and set up in the flexible touch-control layer is kept away from touch-control layer FPC, first optics film and the flexible protection apron of flexible display module assembly one side.
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Address after: Room 401, Building A15, Silicon Valley Power Intelligent Terminal Industrial Park, No. 20 Dafu Industrial Zone, Dafu Community, Guanlan Street, Longhua District, Shenzhen City, Guangdong Province, 518110 Patentee after: Star touch technology (Shenzhen) Co.,Ltd. Address before: Building 1 and Building 2, No. 118, Liguang New Industrial Zone, Liguang Community, Guanlan Street, Longhua District, Shenzhen City, Guangdong Province, 518110 Patentee before: TOPTOUCH ELECTRONICS CO.,LTD. |