CN112706433B - Method for automatically forming special-shaped optical cement on surface of flexible element - Google Patents
Method for automatically forming special-shaped optical cement on surface of flexible element Download PDFInfo
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- CN112706433B CN112706433B CN201911024491.2A CN201911024491A CN112706433B CN 112706433 B CN112706433 B CN 112706433B CN 201911024491 A CN201911024491 A CN 201911024491A CN 112706433 B CN112706433 B CN 112706433B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/0073—Optical laminates
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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Abstract
The invention provides a method for automatically forming special-shaped optical cement on the surface of a flexible element, in particular to a method for automatically forming the special-shaped optical cement on the surface of a sheet material through the operations of attaching, coating, ultraviolet curing, cutting and separating, so that the surface of the sheet material is automatically attached with the flexible element, and special-shaped optical cement is formed on the surface of the flexible element.
Description
Technical Field
The invention relates to a method for automatically forming special-shaped optical mastic on the surface of a flexible element, in particular to a method for automatically forming the special-shaped optical mastic on the surface of a sheet material, which can automatically enable the surface of the sheet material to be bonded with the flexible element after the operations of attaching, coating, curing, cutting and separating the surface of the sheet material, and the special-shaped optical mastic is formed on the surface of the flexible element, thereby achieving automatic manufacturing, reducing errors caused by alignment and further improving the manufacturing qualified rate.
Background
Nowadays, under the circumstances of shortage of labor demand and easy pollution of processing operation to the environment, and under the circumstances of increasing awareness of environmental protection, increasing of cost required by manpower and operation, and the pressure of labor intensive and transition to technical intensive, manufacturers mostly use the operation mode of production line automation technology and jig-assisted processing to improve the operation quality and reduce the cost, so as to achieve the purpose of reducing manpower and saving manufacturing labor and improving the production performance, and nowadays, the Internet of things (IOT) and the industrial 4.0 (industry 4.0) come, the number and the application of networking devices are greatly increased, and the communication and interaction among the networking devices are mostly automatically performed without human intervention, so that more and more devices need to automatically perform the cooperative operation among each other under the circumstance of unmanned operation to complete the specific overall manufacturing process, however, under the circumstance of unmanned automatic operation, the qualification rate and the accuracy of each workstation are very important, and the manufacturing operation cannot be influenced by the low qualification rate and the accuracy, and the overall manufacturing process cannot be delayed, and even the overall smoothness is caused.
Moreover, as the technologies of lcd and touch panel are continuously developed and refined, the new generation of products are designed to be lighter, thinner, more energy-saving, flexible or curved, and larger in size, and the purpose of the invention is to provide a wider visual interface and higher resolution colors for human beings, and to provide excellent convenience and fun for human beings, so that the display interface becomes the focus of industrial attention, and relevant manufacturers do not invest in resources to develop new display technologies and new applications, and strive to improve the visual enjoyment of human beings.
However, currently, the touch panel must be installed on the surface of an electronic product for a user to perform touch input and operation, or be attached to the surface of a display panel to provide a touch display function, and in the prior art, the display panel and the touch panel are mainly bonded together by an Optical Clear Adhesive (OCA) or an Optical Cement (OCR) curable by ultraviolet light irradiation.
In the process of bonding the display panel and the touch panel, a common manufacturer mainly uses a square optical grease to perform Coating and bonding operations, but in actual application, the shapes and sizes of the panels are different due to a large number of panel application types and styles, so that in order to ensure the bonding, ductility and reduction of glue overflow of the optical grease, the optical grease cannot be coated and bonded in a square shape, and the optical grease must be bonded in a special Coating shape, but in the process of general optical grease Coating, a slot Coating (Slit Coating) mold is used to perform slot Coating so as to form an optical grease Coating layer with good flatness on the surface of the panel, however, in the process of special optical grease, the situation of easy occurrence of glue is caused due to the fact that the shape, thickness and dosage of the optical grease are difficult to be controlled through slot Coating, so that the cleaning, labor, product yield and industrial production efficiency are poor, and the industrial yield is not affected by 4% continuously.
Therefore, how to try to solve the above-mentioned existing drawbacks and inconveniences is a direction that those skilled in the art are eagerly looking to research and improve.
Disclosure of Invention
Therefore, in view of the above-mentioned shortcomings, the inventor of the present invention has devised a patent for a method for automatically forming a shaped optical resin on a surface of a flexible element by collecting relevant data, evaluating and considering the data in many ways and using years of experience accumulated in the industry.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for automatically forming special-shaped optical cement on the surface of a soft element is characterized by comprising the following steps:
(A) Firstly, placing a special-shaped flexible element in a special-shaped hollow groove of a film on the surface of a sheet so as to enable the flexible element to be attached to the surface of an adhesive layer of a substrate of the sheet;
(B) Covering the surface of the soft element with liquid optical resin by using a coating device;
(C) Irradiating ultraviolet rays to the liquid optical mastic through an ultraviolet ray curing device so as to solidify the liquid optical mastic into semi-cured optical mastic with a curing degree of a preset percentage;
(D) Then, a cutting device is used for cutting a groove on the semi-solidified optical resin surface and along the periphery of the outline of the soft element so as to form the special-shaped optical resin conforming to the shape of the soft element on the surface of the soft element by the semi-solidified optical resin;
(E) And then the film and the residual optical mastic except the special-shaped optical mastic are detached from the substrate of the sheet.
The method for automatically forming the special-shaped optical cement on the surface of the soft element is characterized in that a special-shaped hollow groove for exposing the base material is formed in the film of the sheet according to the outline of the soft element.
The method for automatically forming the special-shaped optical resin on the surface of the soft element comprises the following steps of preparing a base material of the sheet, wherein the base material is polyethylene terephthalate, polyethylene, polyimide, polyolefin, a glass substrate, an organic light-emitting diode panel, a touch panel, polymethacrylate or an acrylic plate, and the adhesive layer of the base material is an ultraviolet curing dissociation adhesive tape.
The method for automatically forming the special-shaped optical resin on the surface of the flexible element comprises the steps that the film of the sheet is polyethylene terephthalate, polyethylene, polyimide or polyolefin, and the flexible element is an organic light-emitting diode panel, a touch panel, a film sensor, an organic electroluminescent display or a liquid crystal display.
The method for automatically forming the special-shaped optical cement on the surface of the soft element comprises the steps that a non-flat changing part is arranged on at least one side edge, located in the hollow groove, of the film of the sheet, the changing part is provided with a convex block extending towards the inside of the hollow groove, a deformation part which is complementary to the changing part is arranged on at least one side edge of the soft element, and the deformation part is provided with a groove for mutually embedding the convex block.
The method for automatically forming the special-shaped optical mastic on the surface of the soft element is characterized in that the preset percentage curing degree of the semi-cured optical mastic in the step (C) is between 30 and 95 percent.
The method for automatically forming the special-shaped optical cement on the surface of the soft element is characterized in that the cutting depth of the groove of the cutting device in the step (D) is not contacted with the surface of the substrate of the sheet material.
The method for automatically forming the special-shaped optical cement on the surface of the soft element is characterized in that the following steps are performed after the step (E):
(F) The soft element is combined with the curved surface object by using a mould, and the soft element is attached to the surface of the curved surface object by virtue of the special-shaped optical resin on the surface;
(G) Then separating the substrate of the sheet from the soft element.
The method for automatically forming the special-shaped optical cement on the surface of the soft element comprises the following steps of (F) positioning the curved surface object by utilizing a mold cavity of an upper mold, positioning the substrate of the sheet by utilizing a jig, contacting the substrate with a lower mold by utilizing the jig so as to enable the bottom surface of the substrate to be abutted against the surface of an abutting block protruding out of the lower mold, further stretching the periphery of the substrate, the soft element and the special-shaped optical cement to form a preset arc surface, combining the upper mold and the lower mold, enabling the surface of the soft element to be attached to the bottom surface of the curved surface object by utilizing the special-shaped optical cement, then separating the upper mold and the lower mold from the jig in step (G), and tearing the substrate of the sheet from the bottom surface of the soft element.
The method for automatically forming the special-shaped optical resin on the surface of the flexible element comprises the following steps of forming the special-shaped optical resin on the surface of the flexible element, wherein the curved surface object is a glass substrate, a liquid crystal panel, a touch panel, an acrylic plate, a stainless steel plate, a flexible display, an organic light-emitting diode panel, polyethylene terephthalate or polyimide.
The main advantage of the present invention is that the special-shaped optical cement can be easily manufactured in an automated manner, and the special-shaped optical cement does not need to be aligned and attached to the surface of the flexible element again, so as to reduce the error caused by alignment, simplify the manufacturing process, and since the cutting device directly cuts the groove along the outline of the flexible element, the outer side edges of the special-shaped optical cement and the flexible element can be in the same plane, so as to further reduce the error between the flexible element and the special-shaped optical cement, thereby improving the overall manufacturing yield, so that the overall automated manufacturing process can be smoothly performed, and achieving the purpose of reducing the overall manufacturing time and cost.
The present invention has the other advantage that the adhesive layer of the substrate is an ultraviolet light curing dissociation adhesive tape, when the ultraviolet light curing device performs an ultraviolet light curing operation, the ultraviolet light curing dissociation adhesive tape can be dissociated at the same time, so that the film can be conveniently detached from the substrate of the sheet, the smoothness of the tearing operation can be further improved, and the stress during the tearing operation can be reduced after the adhesive layer is dissociated, thereby achieving the purpose of preventing the substrate of the sheet from being damaged and permanently deformed when the film is torn.
Drawings
FIG. 1 is a flow chart of the present invention.
FIG. 2 is an exploded perspective view of the flexible element and the sheet according to the present invention.
FIG. 3 is a schematic diagram of the operation of the flexible element of the present invention when it is attached to a sheet.
FIG. 4 is a schematic view showing the operation of the coating apparatus of the present invention in use.
FIG. 5 is a schematic view showing the operation of the ultraviolet curing device of the present invention.
FIG. 6 is a schematic view of the operation of the cutting device of the present invention in use.
FIG. 7 is a side sectional view of a sheet of the present invention after the film has been peeled away.
FIG. 8 is a schematic diagram illustrating the operation of the curved surface object before the curved surface object is attached.
FIG. 9 is a schematic diagram illustrating the operation of the curved surface object after the curved surface object is attached.
FIG. 10 is a schematic view showing the operation of the sheet of the present invention when the substrate is peeled.
Description of reference numerals: 1-a sheet material; 11-a substrate; 111-an adhesive layer; 12-a film; 120-hollow out groove; 121-a change portion; 1211-bumps; 2-a flexible element; 21-a deformation portion; 211-grooves; 3-a coating device; 31-a liquid outlet; 4-optical mastic; 41-special-shaped optical cement; 42-residual optical cement; 5-ultraviolet light curing device; 51-ultraviolet light; 6-a cutting device; 61-a trench; 7-molding; 71-upper mould; 711-a mold cavity; 72-a jig; 73-lower mold; 731-sustaining block; 8-curved surface object.
Detailed Description
To achieve the above objects and advantages, in accordance with the purpose of the invention, as embodied and broadly described herein, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, 2, 3, 4, 5, 6, and 7, which are schematic diagrams of a flow chart, an exploded perspective view of a sheet and a flexible device, an operation schematic diagram of a flexible device attached to the sheet, an operation schematic diagram of a coating device in use, an operation schematic diagram of an ultraviolet curing device in use, an operation schematic diagram of a cutting device in use, and a side sectional view of the sheet after a film is peeled off, it is clear from the drawings that the present invention can be manufactured by a sheet 1, the sheet 1 has a substrate 11, an adhesive layer 111 is disposed on a surface of the substrate 11, the adhesive layer 111 is combined with a film 12, a specially shaped hollow groove 120 for exposing the substrate 11 is formed inside the film 12 according to a contour of the flexible device 2, a non-flat changing portion 121 is disposed on at least one side of the hollow groove 120, and the changing portion has a bump 1211 extending into the hollow groove 120, and the present invention includes the following steps when being executed:
(A) The flexible element 2 can be placed in the irregular hollow-out groove 120 of the film 12 on the surface of the sheet 1, so that the flexible element 2 is attached to the surface of the adhesive layer 111 of the substrate 11 of the sheet 1.
(B) A coating device 3 is used to coat the surface of the flexible element 2 with liquid Optical Clear Resin (OCR) 4.
(C) And irradiating the ultraviolet light 51 to the liquid optical mastic 4 by the ultraviolet light curing device 5 to solidify the liquid optical mastic 4 into semi-cured optical mastic 4 with a curing degree of a predetermined percentage.
(D) Then, the cutting device 6 is used to cut a groove 61 on the surface of the semi-cured optical resin 4 and along the periphery of the outline of the flexible component 2, so that the semi-cured optical resin 4 forms a special-shaped optical resin 41 conforming to the shape of the flexible component 2 on the surface of the flexible component 2.
(E) Then, the film 12 and the residual optical cement 42 other than the irregular optical cement 41 are separated from the base material 11 of the sheet 1, thereby completing the steps of the present invention.
The above-mentioned manufacturing method for forming the hollow groove 120 on the film 12 of the sheet 1 is preferably to stick the film 12 on the adhesive layer 111 of the substrate 11, and to perform the cutting operation according to the outline of the flexible element 2 by using the cutting device 6, so as to cut a frame-shaped groove (not shown in the figure) on the surface of the film 12, and then to detach the film 12 inside the groove, so as to expose the substrate 11, and to form the special-shaped hollow groove 120 inside the film 12, and at least one side of the hollow groove 120 forms the non-flat changing portion 121, however, in practical applications, the film 12 of the sheet 1 can also form the hollow groove 120 by laser cutting or punching, however, the method of forming the hollow groove 120 in the film 12 of the sheet 1 is many, so the manufacturing process capable of achieving the above-mentioned effects should be covered by the present invention, and such simple modification, equivalent structure and manufacturing process changes should be included in the scope of the present invention, and are disclosed.
The substrate 11 of the sheet 1 may be made of light-transmitting materials such as polyethylene terephthalate, polyethylene, polyimide, polyolefin, a glass substrate, an organic light emitting diode panel (OLED), a touch panel (TSP), polymethacrylate (PMMA), or acrylic plate, and the adhesive layer 111 of the substrate 11 may be an ultraviolet curing dissociation adhesive tape, a thermal dissociation adhesive, or other adhesive, however, the adhesive layer 111 is preferably an ultraviolet curing dissociation adhesive tape, and when the ultraviolet curing device 5 performs an ultraviolet curing operation in step (C), the ultraviolet curing dissociation adhesive tape can be dissociated at the same time, so as to facilitate the detachment of the film 12 from the substrate 11 of the sheet 1, thereby improving smoothness during the operation, and reducing stress during the detachment after the adhesive layer 111 is dissociated, so as to prevent the substrate 11 of the sheet 1 from being damaged and permanently deformed when the film 12 is detached; the film 12 of the sheet 1 may be a film body such as Polyethylene terephthalate (PET or PETE), polyethylene (PE), polyimide (PI), polyolefin (PO), or the like; the flexible component 2 may be a flexible electronic component such as an Organic Light Emitting Diode (OLED) panel, a touch panel (TSP), a Film Sensor (Film Sensor), an organic Electroluminescence (EL) display, or a liquid crystal display.
Furthermore, the film 12 of the sheet 1 is provided with a non-flat changing portion 121, the changing portion 121 is provided with a bump 1211 extending towards the hollow groove 120, at least one side of the flexible element 2 is provided with a deforming portion 21 complementary to the changing portion 121, and the deforming portion 21 is provided with a groove 211 for mutually opposite embedding of the bump 1211.
The coating device 3 in the step (B) preferably can spray the liquid optical mastic 4 through the liquid outlet 31 to uniformly cover the surface of the flexible component 2 with the optical mastic 4, but in practical applications, the coating device 3 can also uniformly cover the surface of the flexible component 2 with the optical mastic 4 through coating methods such as wire rod coating, double-sided forming coating, or blade coating, however, there are many ways as to how the coating device 3 covers the surface of the flexible component 2 with the liquid optical mastic 4, so that processes and devices capable of achieving the above effects should be covered by the present invention, and such simple modifications, equivalent structures, and process changes should be similarly included in the scope of the present invention, which is well-known.
However, the degree of cure of the semi-cured optical mastic 4 in the step (C) may be between 30% and 95%; the cutting device 6 in the step (C) may be a laser cutting machine or a CNC cutting machine, which performs processing operations by cutting methods such as punching or hobbing, however, there are many ways how the cutting device 6 cuts the optical mastic 4 to conform to the contour of the soft element 2, so that all processes and devices that can achieve the aforementioned effects should be covered by the present invention, and such simple modifications and equivalent structures and process changes should be included in the scope of the present invention in the same way, and are well known; the coating device 3, the ultraviolet curing device 5 and the cutting device 6 in the steps (B), (C) and (D) are commonly used existing devices, and may be slightly adjusted without affecting the implementation of the steps of the present invention due to different factors such as models and devices produced by different manufacturers, or due to some operation or condition limitations, and are not taken as a device for limiting the present invention, so detailed internal components and operation modes of various devices are not described again for understanding.
In addition, the cutting device 6 cuts the groove 61 on the surface of the semi-cured optical resin 4 along the peripheral edge of the outline of the flexible component 2, and the cutting depth of the cutting device 6 is not in contact with the surface of the substrate 11 of the sheet 1, so that the surface of the substrate 11 can be prevented from being scratched.
The invention can firstly place the special-shaped flexible element 2 in the special-shaped hollow groove 120 of the film 12 of the sheet 1 to be attached to the surface of the adhesive layer 111 of the substrate 11, and use the coating device 3 to cover the liquid optical mastic 4 on the surface of the flexible element 2, and use the ultraviolet light curing device 5 to solidify the liquid optical mastic 4 into the semi-cured optical mastic 4, and then use the cutting device 6 to cut the groove 61 conforming to the profile of the flexible element 2 on the surface of the semi-cured optical mastic 4, so as to form the special-shaped optical mastic 41 conforming to the shape of the flexible element 2 on the surface of the flexible element 2, and then detach the film 12 and the residual optical mastic 42 except the special-shaped optical mastic 41 from the substrate 11 of the sheet 1, thereby completing the manufacturing, and the manufacturing can directly and accurately form the special-shaped optical mastic 41 on the surface of the flexible element 2 by using the manufacturing method, and can achieve the effect of directly cutting the special-shaped optical mastic 41 into the special-shaped optical mastic 41 along the profile of the flexible element 2, thereby improving the yield of the manufacturing process, and further achieving the effect of reducing the production error of the manufacturing of the special-shaped optical mastic 2, and the manufacturing process, and reducing the production of the whole of the special-shaped optical mastic 2, and the manufacturing error of the optical element 2, and the manufacturing process, and the production.
Referring to fig. 1, 8, 9 and 10, which are schematic diagrams of a flowchart, an operation before the curved surface object is attached, an operation after the curved surface object is attached, and an operation when the substrate of the sheet is torn off according to the present invention, it can be clearly seen from the diagrams that the following steps can be further performed after step (E):
(F) The flexible component 2 and the curved object 8 are combined with each other by the mold 7, and the flexible component 2 can be adhered to the surface of the curved object 8 by the special-shaped optical resin 41 on the surface.
(G) Then, the substrate 11 of the sheet 1 is separated from the flexible element 2, so that the flexible element 2 and the curved object 8 which are combined into a whole by the special-shaped optical cement 41 can be obtained.
In the step (F), the mold 7 can first use the mold cavity 711 of the upper mold 71 to position the curved surface object 8, and position the substrate 11 of the sheet 1 through the fixture 72 (e.g., a clamping fixture), and then use the fixture 72 to contact the substrate 11 with the lower mold 73, so as to make the bottom surface of the substrate 11 abut against the surface of the abutting block 731 protruding from the lower mold 73, and further stretch the periphery of the substrate 11, the soft element 2, and the special-shaped optical mastic 41 to form a predetermined shape, and then combine the upper mold 71 and the lower mold 73, so that the surface of the soft element 2 can adhere to the bottom surface of the curved surface object 8 through the special-shaped optical mastic 41, and then separate the upper mold 71 and the lower mold 73 from the fixture 72, and tear the substrate 11 of the sheet 1 from the bottom surface of the soft element 2, so as to obtain the soft element 2 and the curved surface object 8 combined by the special-shaped optical mastic 41, and the substrate 11 of the sheet 1 can be directly used by the fixture 72 of the mold 7, so as to make the whole continuous and smooth, and further achieve an automatic flow.
The curved surface object 8 may be an object having a curved surface around a periphery, such as a glass substrate, a liquid crystal panel, a touch panel, an acrylic panel, a stainless steel plate, a Flexible Display (Flexible Display), an Organic Light Emitting Diode (OLED) panel, polyethylene (PE), polyethylene terephthalate (PET or PETE), or Polyimide (PI).
The invention has the following advantages:
the surface of the sheet 1 can be automatically adhered with the soft element 2 by the operations of attaching, coating, ultraviolet curing, cutting and separating, and the surface of the sheet 1 is formed with the special-shaped optical mastic 41, so that the effect of easily manufacturing the special-shaped optical mastic 41 by an automatic mode is achieved, the operation of aligning and adhering the special-shaped optical mastic 41 on the surface of the soft element 2 is not needed to be carried out again, so as to reduce the error caused by alignment, simplify the manufacturing process, and the cutting device 6 directly cuts the groove 61 along the outline of the soft element 2, so that the outer sides of the special-shaped optical mastic 41 and the soft element 2 are in the same plane, further reducing the error between the soft element 2 and the special-shaped optical mastic 41, further improving the overall manufacturing qualification rate, enabling the overall automatic process to be smooth, and achieving the effects of reducing the overall manufacturing time and cost.
The adhesive layer 111 of the substrate 11 may be an ultraviolet curing dissociation tape, and when the ultraviolet curing device 5 performs an ultraviolet curing operation, the ultraviolet curing dissociation tape may be dissociated at the same time, so as to facilitate the detachment of the film 12 from the substrate 11 of the sheet 1, thereby improving the smoothness during the operation, and the adhesive layer 111 may reduce the stress during the detachment, so as to prevent the substrate 11 of the sheet 1 from being damaged and permanently deformed when the film 12 is detached.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations, or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A method for automatically forming special-shaped optical cement on the surface of a soft element is characterized by comprising the following steps:
(A) Firstly, placing a special-shaped flexible element in a special-shaped hollow groove of a film on the surface of a sheet so as to enable the flexible element to be attached to the surface of an adhesive layer of a substrate of the sheet;
(B) Covering the surface of the soft element with liquid optical resin by using a coating device;
(C) Irradiating ultraviolet rays to the liquid optical mastic through an ultraviolet ray curing device so as to solidify the liquid optical mastic into semi-cured optical mastic with a curing degree of a preset percentage;
(D) Then, a cutting device is used for cutting a groove on the semi-solidified optical resin surface and along the periphery of the outline of the soft element so as to form the special-shaped optical resin which conforms to the shape of the soft element on the semi-solidified optical resin surface;
(E) And then the residual optical mastic except the film and the special-shaped optical mastic is detached from the substrate of the sheet.
2. A method as claimed in claim 1, wherein a plurality of special-shaped hollow-out grooves are formed in the film of the sheet according to the contour of the flexible component to expose the substrate.
3. The method as claimed in claim 1, wherein the substrate of the sheet is polyethylene terephthalate, polyethylene, polyimide, polyolefin, glass substrate, organic light emitting diode panel, touch panel, polymethacrylate, or acrylic plate, and the adhesive layer of the substrate is UV-curable debonding tape.
4. The method as claimed in claim 1, wherein the film of the sheet is polyethylene terephthalate, polyethylene, polyimide or polyolefin, and the flexible device is an organic light emitting diode panel, a touch panel, a film sensor, an organic electroluminescent display or a liquid crystal display.
5. The method as claimed in claim 1, wherein the film of the sheet has a non-flat variation portion on at least one side of the hollow-out groove, the variation portion has a protrusion extending into the hollow-out groove, and the at least one side of the flexible element has a deformation portion complementary to the variation portion, the deformation portion has a groove for the protrusion to engage with each other.
6. The method of claim 1, wherein the pre-set percentage cure of the semi-cured optical mastic in step (C) is between 30% and 95%.
7. A method as claimed in claim 1, wherein the grooves of the cutting device in step (D) are cut to a depth that does not contact the substrate surface of the sheet.
8. A method for automatically forming shaped optical cement on the surface of a flexible element according to claim 1, wherein the step (E) is followed by the steps of:
(F) The soft element is combined with the curved surface object by using a mould, and the soft element is attached to the surface of the curved surface object by means of the special-shaped optical resin on the surface;
(G) Then separating the substrate of the sheet from the soft element.
9. The method as claimed in claim 8, wherein the mold in step (F) first uses the cavity of the upper mold to position the curved surface object, and uses the fixture to position the substrate of the sheet, and then uses the fixture to contact the substrate with the lower mold, so that the bottom surface of the substrate abuts against the convex abutting block surface of the lower mold, and further the substrate, the flexible element and the periphery of the shaped optical mastic are stretched to form a predetermined shape, and then the upper mold and the lower mold are combined with each other, so that the surface of the flexible element is adhered to the bottom surface of the curved surface object by the shaped optical mastic, and then in step (G), the upper mold and the lower mold are separated from the fixture, and the substrate of the sheet is torn from the bottom surface of the flexible element.
10. The method as claimed in claim 8, wherein the curved surface is a glass substrate, a liquid crystal panel, a touch panel, an acrylic panel, a stainless steel panel, a flexible display, an organic light emitting diode panel, polyethylene terephthalate, or polyimide.
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