CN113126189A - Method and apparatus for manufacturing optical sheet having hole structure - Google Patents
Method and apparatus for manufacturing optical sheet having hole structure Download PDFInfo
- Publication number
- CN113126189A CN113126189A CN201911409607.4A CN201911409607A CN113126189A CN 113126189 A CN113126189 A CN 113126189A CN 201911409607 A CN201911409607 A CN 201911409607A CN 113126189 A CN113126189 A CN 113126189A
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- China
- Prior art keywords
- optical sheet
- raw material
- double
- protective film
- sided adhesive
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
Abstract
The invention provides a manufacturing method and a manufacturing device of an optical sheet with a hole structure, comprising the following steps: step 1: supplying a base PET film; step 2: laminating a double-sided adhesive tape on the PET film; and step 3: laminating an optical sheet product raw material, wherein a protective film on the front side of the optical sheet is attached to a double-sided adhesive tape; and 4, step 4: removing the protective film, namely removing the protective film on the back surface of the optical sheet in the raw material of the optical sheet product; and 5: blanking, namely blanking from the back of the optical sheet, and simultaneously completing half cutting of a frame of the optical sheet and full cutting of a required hole part structure; and step 6: and removing the PET film and the double-sided adhesive tape. According to the method and apparatus for manufacturing an optical sheet having a hole structure provided by the present invention, an optical sheet having a hole structure capable of accommodating a module such as a camera can be manufactured without an additional process. In addition, the optical sheet with the hole structure, which is prepared by the manufacturing method provided by the invention, can remarkably reduce the fraction defective of the module and can reduce the production cost.
Description
Technical Field
The present invention relates to the field of optical sheet manufacturing, and more particularly, to a method and an apparatus for manufacturing an optical sheet having a hole structure.
Background
In general, an optical sheet used for a display of a mobile device in the related art is formed in a quadrangular shape in cross section.
Recently, in order to reduce the frame of the display, it is necessary to provide a camera module or the like in the display, and therefore, the optical sheet is required to have a hole structure capable of housing such a camera module or the like.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a method for manufacturing an optical sheet having a hole structure, in which a frame and a hole structure of the optical sheet are simultaneously punched.
Another object of the present invention is to provide an apparatus for manufacturing an optical sheet having a hole structure.
To achieve the above object, the present invention provides a method for manufacturing an optical sheet having a hole structure, comprising the steps of: step 1: supplying a base PET film; step 2: laminating a double-sided adhesive tape on the PET film; and step 3: laminating an optical sheet product raw material, namely laminating the optical sheet product raw material on double-sided adhesive, wherein a protective film on the front side of the optical sheet is attached to the double-sided adhesive; and 4, step 4: removing the protective film, namely removing the protective film on the back surface of the optical sheet in the raw material of the optical sheet product; and 5: blanking, namely blanking from the back of the optical sheet, and simultaneously completing half cutting of a frame of the optical sheet and full cutting of a required hole part structure; and step 6: and removing the PET film and the double-sided adhesive tape.
Preferably, the method further comprises the following steps: and 7: a protective film is laminated, in the raw material of the optical sheet product with the PET and the double-sided adhesive removed in the step 6, the protective film is laminated on the back surface of the optical sheet; and 8: the raw material of the optical sheet product on which the protective film was laminated was stored.
Preferably, a step of removing the waste of the double-sided adhesive tape is further included between the step 2 and the step 3.
Preferably, a step of checking whether the raw material of the optical sheet product has an abnormality and foreign substances is further included between the step 4 and the step 5.
In order to achieve another object, the present invention provides an apparatus for manufacturing an optical sheet having a hole structure, comprising a PET supply roller for supplying a PET film, a double-sided tape supply roller for supplying a double-sided tape, an optical sheet product raw material supply roller for supplying an optical sheet product raw material, a protective film recovery roller for recovering a protective film on one side of the optical sheet product raw material, a punching device for punching the PET film and the double-sided tape, wherein the punching device is provided with a half cutter for punching the optical sheet product raw material in a half cutting manner to cut a frame of the optical sheet, and a full cutter for punching the optical sheet product raw material in a full cutting manner to cut a hole structure required for the optical sheet, and the PET film and the double-sided tape recovery roller for recovering the PET film and the double-sided tape from the punched optical sheet product raw material.
Preferably, the method further comprises the following steps: and a double-sided adhesive tape waste recovery roller for recovering waste of the double-sided adhesive tape.
Preferably, the method further comprises the following steps: and a defective product inspection device for inspecting whether the raw material of the optical sheet product has abnormality or foreign matter.
Preferably, the method further comprises the following steps: a protective film supply roller for laminating a protective film on the raw material of the optical sheet product which has been recovered with the PET film and the double-sided adhesive tape; and an optical sheet product raw material recovery roller for recovering the punched optical sheet product raw material laminated with the protective film through the protective film supply roller.
According to the method and apparatus for manufacturing an optical sheet having a hole structure provided by the present invention, an optical sheet having a hole structure capable of accommodating a module such as a camera can be manufactured without an additional process. In addition, the optical sheet with the hole structure, which is prepared by the manufacturing method provided by the invention, can remarkably reduce the fraction defective of the module and can reduce the production cost. Further, the use of the base PET film can further reduce burrs, wrinkles, and the like of the punched edge of the hole structure.
Drawings
Fig. 1 is a schematic view of an optical sheet having a hole structure according to the present invention.
Fig. 2 is a schematic structural diagram of an apparatus for manufacturing an optical sheet having an aperture structure according to the present invention.
Fig. 3 is a flowchart of a method for manufacturing an optical sheet having an aperture structure according to the present invention.
Fig. 4 is a schematic diagram of a product state corresponding to the manufacturing method of the optical sheet with the hole structure provided by the invention.
Fig. 5A is an enlarged view of a hole portion structure of an optical sheet manufactured by the method for manufacturing an optical sheet having a hole structure according to the present invention.
Fig. 5B is an enlarged view of the hole portion structure of the optical sheet obtained in the comparative experiment.
[ description of reference ]
1: PET supply roll 2: double-sided adhesive tape supply roller
3: double-sided adhesive tape waste recovery roller 4: raw material supply roller for optical sheet product
5: protective film recovery roller 6: defective product inspection device
7: the blanking device 71: half cutter
72: and (3) a full cutter 8: PET and double faced adhesive tape recovery roller
9: protective film supply roller 10: raw material recovery roller for optical sheet products
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In explaining the embodiments of the present invention, if a detailed description of related well-known elements or functions obstructs the gist of the present invention, a detailed description thereof will be omitted.
The raw material of the optical sheet product provided by the invention can comprise an optical sheet and a protective film attached to two surfaces of the optical sheet, wherein the optical sheet can be a single sheet or a prism sheet jointed with a plurality of sheets. The optical sheet of the present invention is described by taking the optical sheet as an example, but the present invention is not limited thereto, and the optical sheet may further include other optical sheet materials, which can be selected by a user as needed.
Referring to fig. 2, the apparatus for manufacturing an optical sheet having a hole structure according to the present invention includes a PET supply roller 1, a double-sided tape supply roller 2, a double-sided tape waste recovery roller 3, an optical sheet product raw material supply roller 4, a protective film recovery roller 5, a defective product inspection device 6, a punching device 7, a PET and double-sided tape recovery roller 8, a protective film supply roller 9, and an optical sheet product raw material recovery roller 10.
The PET supply roll 1 supplies a PET (Polyethylene terephthalate) film 11. The PET film 11 is conveyed in a certain direction. The double-sided adhesive tape supply roller 2, the double-sided adhesive tape waste recovery roller 3, the optical sheet product raw material supply roller 4, the protective film recovery roller 5, the defective product inspection device 6, the punching device 7, the PET and double-sided adhesive tape recovery roller 8, the protective film supply roller 9, and the optical sheet product raw material recovery roller 10 are arranged in this order in the conveyance direction of the PET film 11.
The double-sided tape supply roller 2 is used to supply double-sided tape and press the double-sided tape on the upper portion of the PET film 11 supplied from the PET supply roller 1.
The double-sided adhesive tape waste recycling roller 3 is used for recycling waste of double-sided adhesive tape laminated on the upper part of the PET film.
The optical sheet product raw material supply roller 4 is used for supplying an optical sheet product raw material which is laminated on the double-sided adhesive from which the waste is removed.
The protective film recovery roller 5 is used to recover the protective film from the back surface (the surface of the prism sheet without the prism pattern or the surface opposite to the surface bonded to the double-sided adhesive tape) of the optical sheet laminated to the raw material of the double-sided adhesive tape. The protective film on the other side of the optical sheet product raw material, i.e., the front side of the optical sheet, is not removed and remains as it is.
The defective product inspection device 6 is used for performing appearance inspection on the optical sheet product raw material from which the protective film on the back surface of the optical sheet is removed, and confirming whether the optical sheet product raw material has abnormality or foreign matter.
If the defective product inspection device 6 determines that there is no abnormality in the optical sheet product raw material and no foreign matter is present, the punching device 7 punches the optical sheet product raw material. The blanking device 7 is provided with a half cutter 71 and a full cutter 72, and the vertical distance between the tips of the two blades is 10-100 μm. The half cutter 71 is used to cut the raw material of the optical sheet product in a half-cut manner, thereby cutting the frame of the optical sheet, and the full cutter 72 is used to cut the raw material of the optical sheet product in a full-cut manner, thereby cutting the hole portion structure required for the optical sheet.
And the PET and double-sided adhesive tape recovery roller 8 is used for recovering the PET film and the double-sided adhesive tape on the surface of the blanked optical sheet product raw material.
The protective film supply roll 9 is used to laminate a protective film on the back surface of the optical sheet (the surface of the prism sheet without the prism pattern) in the optical sheet product stock from which the PET film and the double-sided tape have been removed.
The optical sheet product raw material collecting roller 10 is used for collecting and storing the optical sheet in which the protective film is laminated on the punched optical sheet product raw material.
The invention provides a method for manufacturing an optical sheet with a hole structure, which comprises the following steps:
step 1: supplying a base PET film, specifically, supplying a PET film with a thickness of 50-150 um from a PET supply roller 1;
step 2: laminating a double-sided adhesive tape on the PET film, specifically laminating the double-sided adhesive tape with the thickness of 10-50 um on the upper part of the PET film supplied in the step 1 through a double-sided adhesive tape supply roller 2; the state after step 1 and step 2 is shown in fig. 4 (a).
And step 3: removing the double-sided adhesive tape waste, specifically, removing the double-sided adhesive tape waste laminated on the upper part of the PET film by a double-sided adhesive tape waste recycling roller 3, wherein the double-sided adhesive tape waste refers to a protective film of the double-sided adhesive tape formed on the surface opposite to the surface laminated on the PET film; the state after step 3 is shown in fig. 4 (b).
And 4, step 4: laminating an optical sheet product raw material, specifically, laminating the optical sheet product raw material on the double-sided adhesive from which the wastes are removed in the step 3 by an optical sheet product raw material supply roller 4, wherein the optical sheet product raw material comprises an optical sheet and protective films attached to both sides of the optical sheet, the optical sheet can be a single prism sheet with a thickness of 50-200 um or a prism sheet with a plurality of pieces of bonded prism sheets, and the protective film on the front surface (prism surface of the prism sheet) of the optical sheet is attached to the double-sided adhesive in the step 4; the state after step 4 is shown in fig. 4 (c).
And 5: removing the protective film, specifically, removing the protective film on the back surface of the optical sheet (the surface without the prism pattern of the prism sheet or the surface opposite to the surface adhered with the double-sided adhesive tape) in the raw material of the optical sheet product by a protective film recovery roller 5; the state after step 5 is shown in fig. 4 (d).
Step 6: inspecting the product for abnormalities and foreign matter, specifically, performing appearance inspection by the defective product inspection device 6 to confirm whether the product has abnormalities and foreign matter;
and 7: blanking, specifically, performing blanking (reverse blanking) from the back of the optical sheet by a blanking device 7, and simultaneously performing half-cutting on a frame of an optical sheet product raw material, i.e., a half-cutting knife that pierces the optical sheet but does not pierce a protective film to cut a quadrangular frame of the optical sheet, and full-cutting on a desired hole structure, i.e., a full-cutting knife that pierces the optical sheet and the protective film completely to cut the desired hole structure, i.e., simultaneously cuts a quadrangular frame and a completely punched hole of the optical sheet; the state of step 7 is shown in fig. 4 (e).
And 8: removing the PET and the double-sided adhesive tape, specifically, removing the PET and the double-sided adhesive tape on the surface of the blanked raw material of the optical sheet product by a PET and double-sided adhesive tape recovery roller 8;
and step 9: a protective film is laminated, specifically, a protective film is laminated on the back surface of the optical sheet (the surface without prism pattern of the prism sheet) in the optical sheet product raw material subjected to punching by a protective film supply roller 9;
step 10: the raw material of the optical sheet product on which the protective film is laminated is stored, and specifically, the optical sheet on which the protective film is laminated and which has been punched out is wound up to the raw material recovering roller 10 of the optical sheet product.
According to the method and apparatus for manufacturing an optical sheet having a hole structure provided by the present invention, an optical sheet having a hole structure capable of accommodating a module such as a camera can be manufactured without an additional process. In addition, the optical sheet with the hole structure, which is prepared by the manufacturing method provided by the invention, can remarkably reduce the fraction defective of the module and can reduce the production cost. Further, the use of the base PET film can further reduce burrs, wrinkles, and the like of the punched edge of the hole structure.
Fig. 5A and 5B further illustrate the effect achieved by the manufacturing method of the present invention, fig. 5A is an enlarged view of the hole portion structure of the optical sheet manufactured by the manufacturing method of the optical sheet having the hole structure of the present invention, fig. 5B is an enlarged view of the hole portion structure of the optical sheet manufactured by the comparative test, the manufacturing method of the comparative test does not include steps 1 to 3, and other conditions are not changed, that is, the raw material of the optical sheet product is directly punched on the basis of the base-free PET film. As can be seen from fig. 5A and 5B, the edge of the hole structure of the optical sheet manufactured by the manufacturing method of the present invention is flat, and burrs, wrinkles, and the like are generated at the edge of the hole structure in the comparative test. Although fig. 5A shows a case where the double-sided tape is formed only in a part, the double-sided tape may be formed over the entire surface.
The preferred embodiments of the present invention have been described in detail. However, the present invention is not limited to the above-described embodiments, and can be implemented in various forms. The embodiments disclosed in this specification are intended only to complete the disclosure of the present invention so that those skilled in the art will be fully aware of the scope of the present invention. The protection scope of the present invention should be subject to the content of the claims.
Claims (8)
1. A method of manufacturing an optical sheet having an aperture structure, comprising the steps of:
step 1: supplying a base PET film;
step 2: laminating a double-sided adhesive tape on the PET film;
and step 3: laminating an optical sheet product raw material, namely laminating the optical sheet product raw material on double-sided adhesive, wherein a protective film on the front side of the optical sheet is attached to the double-sided adhesive;
and 4, step 4: removing the protective film, namely removing the protective film on the back surface of the optical sheet in the raw material of the optical sheet product;
and 5: blanking, namely blanking from the back of the optical sheet, and simultaneously completing half cutting of a frame of the optical sheet and full cutting of a required hole part structure; and
step 6: and removing the PET film and the double-sided adhesive tape.
2. The method of manufacturing an optical sheet having a hole structure according to claim 1, further comprising the steps of:
and 7: a protective film is laminated, in the raw material of the optical sheet product with the PET and the double-sided adhesive removed in the step 6, the protective film is laminated on the back surface of the optical sheet;
and 8: the raw material of the optical sheet product on which the protective film was laminated was stored.
3. The method for manufacturing an optical sheet having a hole structure according to claim 1, further comprising a step of removing waste of the double-sided adhesive tape between the steps 2 and 3.
4. The method of manufacturing an optical sheet having a hole structure according to claim 1,
the method also comprises a step of checking whether the raw material of the optical sheet product has abnormity and foreign matters between the step 4 and the step 5.
5. An apparatus for manufacturing an optical sheet having a hole structure, comprising a PET supply roller for supplying a PET film, a double-sided tape supply roller for supplying a double-sided tape, an optical sheet product raw material supply roller for supplying an optical sheet product raw material, a protective film recovery roller for recovering a protective film on one side of the optical sheet product raw material, a punching device, and a PET film and double-sided tape recovery roller,
wherein the blanking device is provided with a half cutter and a full cutter, the half cutter is used for blanking the raw material of the optical sheet product in a half cutting mode so as to cut the frame of the optical sheet, the full cutter is used for blanking the raw material of the optical sheet product in a full cutting mode so as to cut the hole part structure required by the optical sheet,
and the PET film and double-sided adhesive tape recovery roller recovers the PET film and the double-sided adhesive tape from the blanked optical sheet product raw material.
6. The apparatus for manufacturing an optical sheet having an aperture structure according to claim 5, further comprising: and a double-sided adhesive tape waste recovery roller for recovering waste of the double-sided adhesive tape.
7. The apparatus for manufacturing an optical sheet having an aperture structure according to claim 5, further comprising: and a defective product inspection device for inspecting whether the raw material of the optical sheet product has abnormality or foreign matter.
8. The apparatus for manufacturing an optical sheet having an aperture structure according to claim 5, further comprising: a protective film supply roller for laminating a protective film on the raw material of the optical sheet product which has been recovered with the PET film and the double-sided adhesive tape; and an optical sheet product raw material recovery roller for recovering the punched optical sheet product raw material laminated with the protective film through the protective film supply roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911409607.4A CN113126189B (en) | 2019-12-31 | 2019-12-31 | Method and apparatus for manufacturing optical sheet having hole structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911409607.4A CN113126189B (en) | 2019-12-31 | 2019-12-31 | Method and apparatus for manufacturing optical sheet having hole structure |
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| Publication Number | Publication Date |
|---|---|
| CN113126189A true CN113126189A (en) | 2021-07-16 |
| CN113126189B CN113126189B (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911409607.4A Active CN113126189B (en) | 2019-12-31 | 2019-12-31 | Method and apparatus for manufacturing optical sheet having hole structure |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009297808A (en) * | 2008-06-11 | 2009-12-24 | Chiyoda Integre Co Ltd | Adhesive tape manufacturing method and adhesive tape manufacturing apparatus |
| CN102087539A (en) * | 2009-12-08 | 2011-06-08 | 乐金显示有限公司 | Portable computer |
| CN103707823A (en) * | 2012-09-28 | 2014-04-09 | 日东电工株式会社 | Patterned adhesive body and producing method thereof |
| JP2014121751A (en) * | 2012-12-20 | 2014-07-03 | Sharp Corp | Cutting device, cutting method and sticking device |
| CN108429835A (en) * | 2018-03-30 | 2018-08-21 | 广东欧珀移动通信有限公司 | Display screen component and mobile terminal |
| CN109785744A (en) * | 2018-12-25 | 2019-05-21 | 友达光电（昆山）有限公司 | Display device and the terminal for using the display device |
-
2019
- 2019-12-31 CN CN201911409607.4A patent/CN113126189B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009297808A (en) * | 2008-06-11 | 2009-12-24 | Chiyoda Integre Co Ltd | Adhesive tape manufacturing method and adhesive tape manufacturing apparatus |
| CN102087539A (en) * | 2009-12-08 | 2011-06-08 | 乐金显示有限公司 | Portable computer |
| CN103707823A (en) * | 2012-09-28 | 2014-04-09 | 日东电工株式会社 | Patterned adhesive body and producing method thereof |
| JP2014121751A (en) * | 2012-12-20 | 2014-07-03 | Sharp Corp | Cutting device, cutting method and sticking device |
| CN108429835A (en) * | 2018-03-30 | 2018-08-21 | 广东欧珀移动通信有限公司 | Display screen component and mobile terminal |
| CN109785744A (en) * | 2018-12-25 | 2019-05-21 | 友达光电（昆山）有限公司 | Display device and the terminal for using the display device |
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| Publication number | Publication date |
|---|---|
| CN113126189B (en) | 2022-06-07 |
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