Reworkable matte black protective film applied to mini LED lamp panel
By using a reworkable matte black protective film on the miniLED light board, the problem of scrapping the entire light board was solved, and damaged LED beads could be replaced individually, reducing maintenance and production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, if a faulty chip appears on a miniLED light board, the entire board needs to be replaced, resulting in high production costs.
It adopts a reworkable matte black protective film, including a first bonding structure and a second bonding structure. It uses a UV-type adhesive layer to press with the miniLED light board, replacing the traditional plastic sealant, ensuring that the film can be peeled off horizontally to replace individual LED beads in case of damage.
It enables residue-free film removal at room temperature, allowing for individual replacement of damaged LED beads, thus reducing maintenance and production costs.
Smart Images
Figure CN224047278U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of lamp panel protection film, especially a reworkable dull black protection film applied to miniLED lamp panel. BACKGROUND
[0002] With the increasing demand for display lamp panel, the demand for lamp panel components such as LED chips is also increasing. At present, during the production of LED chips, plastic encapsulation glue is usually used for packaging LED chips. However, after packaging, the whole plate LED chip will form a whole, and once an individual or multiple chips are abnormal, the whole lamp panel needs to be replaced, which seriously affects the production cost. SUMMARY
[0003] In order to overcome the shortcomings of the prior art, the utility model provides a reworkable dull black protection film applied to miniLED lamp panel.
[0004] The utility model solves the technical problems thereof by adopting the technical scheme of:
[0005] A reworkable dull black protection film applied to miniLED lamp panel, comprising first and second adhering structures capable of being adhered to each other, wherein the first adhering structure comprises a first release layer, a UV type adhesive layer and a PET layer adhered in sequence, and the second adhering structure comprises a second release layer, a diffusion adhesive layer, an ag base film layer and a silica gel protection film layer adhered in sequence, wherein the diffusion adhesive layer is adhered to the PET layer of the first adhering structure after the second adhering structure is separated from the second release layer, and the UV type adhesive layer is pressed onto the miniLED lamp panel after the first adhering structure is separated from the first release layer.
[0006] The reworkable dull black protection film applied to miniLED lamp panel as described above, wherein the UV type adhesive layer is an acrylate adhesive layer, and the thickness value L2 of the UV type adhesive layer is 400-450 μm.
[0007] The reworkable dull black protection film applied to miniLED lamp panel as described above, wherein the PET layer is a PET raw film, and the thickness value L3 of the PET layer is 50 μm.
[0008] The reworkable dull black protection film applied to miniLED lamp panel as described above, wherein the diffusion adhesive layer is a UV type acrylate adhesive layer containing diffusion powder, and the thickness value L5 of the diffusion adhesive layer is 100-150 μm.
[0009] The application relates to a reworkable dull black protective film applied to a miniLED lamp panel, wherein the ag base film layer is an ink coating layer with an ag effect base film, and the thickness value of the ag base film layer is L6, wherein the L6 value ranges from 70 to 75 mu m.
[0010] The application relates to a reworkable dull black protective film applied to a miniLED lamp panel, wherein the thickness value of the silica gel protective film layer is L7, wherein the L7 value ranges from 50 mu m.
[0011] The application relates to a reworkable dull black protective film applied to a miniLED lamp panel, wherein the first release layer is a PET single-sided light release film, the thickness value of the first release layer is L1, wherein the L1 value ranges from 100 mu m, and the release force is less than or equal to 10 g / inch.
[0012] The application relates to a reworkable dull black protective film applied to a miniLED lamp panel, wherein the second release layer is a PET single-sided release film, the thickness value of the second release layer is L4, wherein the L4 value ranges from 50 mu m, and the release force is less than or equal to 10 g / inch.
[0013] The application relates to a reworkable dull black protective film applied to a miniLED lamp panel, wherein the UV type adhesive layer is attached to the PET layer through high-temperature UV curing.
[0014] The application relates to a reworkable dull black protective film applied to a miniLED lamp panel, wherein the diffusion adhesive layer is attached to the ink surface of the ag base film layer through high-temperature UV curing.
[0015] The application has the advantages that the structure is simple, the protective film is matched with the structure, the UV type adhesive layer with a viscosity reduction effect is used to be combined and packaged with the miniLED lamp panel, the traditional plastic sealing glue is replaced, the protective film cannot be completely attached to the miniLED lamp panel, when individual LED lamp beads are damaged in the production and use processes, the whole protective film can be torn off without residual glue under the condition of normal temperature and horizontal film tearing, and the damaged LED lamp beads can be replaced individually, instead of the whole lamp panel being scrapped, and the maintenance and production costs are effectively reduced. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.
[0017] Fig. 1It is a structure schematic view of the first lamination structure according to the embodiment of the utility model.
[0018] Fig. 2 It is a structure schematic view of the second lamination structure according to the embodiment of the utility model.
[0019] Fig. 3 It is a structure schematic view of the reworkable matte black protective film applied to the miniLED lamp panel according to the embodiment of the utility model. Specific implementation
[0020] The technical scheme of the utility model will be described in detail below in combination with the drawings and embodiments.
[0021] Please see Figs. 1 to 3 The application embodiment provides a reworkable matte black protective film applied to a miniLED lamp panel, which is characterized by comprising a first lamination structure and a second lamination structure capable of being mutually laminated, wherein the first lamination structure comprises a first release layer 1, a UV type adhesive layer 2 and a PET layer 3 which are sequentially laminated, the second lamination structure comprises a second release layer 4, a diffusion adhesive layer 5, an ag base film layer 6 and a silica gel protective film layer 7 which are sequentially laminated, wherein the second lamination structure is allowed to be laminated on the PET layer 3 of the first lamination structure after the second release layer 4 is torn off, and the UV type adhesive layer 2 is allowed to be press-bonded on the miniLED lamp panel 100 after the first release layer 1 of the first lamination structure is torn off.
[0022] By adjusting the structure of the protective film, the UV type adhesive layer 2 with a viscosity reduction effect is used to press-bond and package the miniLED lamp panel 100, so that the protective film is not completely laminated on the miniLED lamp panel 100, and when individual LED lamp beads are damaged during the production and use process, the whole protective film can be torn off without residual glue under the condition of normal temperature and horizontal film tearing, so that the damaged corresponding LED lamp beads can be replaced individually, instead of the whole lamp panel being scrapped, thereby effectively reducing the maintenance and production cost.
[0023] Further, the PET layer 3 is a single-face heavy release film layer, and the thickness value is L3, wherein the value of L3 is 50 μm.
[0024] Specifically, the UV type adhesive layer 2 is laminated on the PET layer 3 through high-temperature UV curing.
[0025] Further, the UV type adhesive layer 2 is an acrylate adhesive layer, and the thickness value is L2, wherein the value of L2 ranges from 400 to 450 μm.
[0026] In this embodiment, the UV type adhesive layer 2 is coated on the PET layer 3 by a fast curing type acrylate adhesive, and is formed after drying and curing in an oven.
[0027] Further, the first release layer 1 is a PET single-sided light release film with a thickness value L1, wherein the L1 value ranges from 100 pm, and the release force is ≤10 g / inch.
[0028] Specifically, the production process of the first bonding structure is as follows:
[0029] A PET single-sided heavy release film with a thickness of 100 pm is used as the PET layer 3, then a 400-450 pm UV tack-reducing fast curing type acrylate adhesive is coated on the release surface of the PET layer 3 using a comma coating head, and after drying and curing in an oven, a UV type adhesive layer 2 is formed on the surface of the PET layer 3, then a PET single-sided light release film with a thickness of 50 pm is bonded on one side of the UV type adhesive layer 2, forming the first release layer 1, and finally the whole is wound, wrapped with pearl cotton for 1-2 turns, wrapped with black PE film for 2-3 turns, and placed at 40±5°C for 48H, then placed at room temperature for 72H, to obtain the first bonding structure.
[0030] Further, the diffusion adhesive layer 5 is a UV type acrylate adhesive layer containing diffusion powder, and the thickness value is L5, wherein the L5 value ranges from 100-150 pm.
[0031] In this embodiment, the diffusion powder is used in the LED industry to improve the light transmittance and diffusion effect, reduce the glare feeling, and maintain a good balance between high transmittance and high diffusion. By adding diffusion powder to adjust the haze and LAB value of the matte black protective film, after the matte black protective film is bonded to the bonded object, compared with the original packaging technology, the screen display consistency and hiding effect will be improved.
[0032] Further, the ag base film layer 6 is an ink coating layer with an ag effect base film, and the thickness value is L6, wherein the L6 value ranges from 70-75 pm.
[0033] Specifically, the diffusion adhesive layer 5 is bonded to the ink surface of the ag base film layer 6 through high temperature UV curing.
[0034] Further, the thickness value of the silica gel protective film layer 7 is L7, wherein the L7 value ranges from 50 pm.
[0035] Further, the second release layer 4 is a PET single-sided release film with a thickness value L4, wherein the L4 value ranges from 50 pm, and the release force is ≤10 g / inch.
[0036] Specifically, the production process of the second laminated structure is as follows:
[0037] Between the ink surface of the ag base film layer 6 with a thickness of 70-75 μm and the PET single-side light release film with a thickness of 50 μm, a UV type acrylate adhesive with a diffusion effect of 100-150 μm is coated by a double roller, and is sent into a UV lamp box for irradiation and curing to form a diffusion adhesive layer 5, then a silica gel protective film layer 7 is formed by laminating a silica gel protective film with a thickness of 50 μm on the ag surface of the ag base film layer 6, and finally the whole is wound, wrapped with pearl cotton for 1-2 turns, wrapped with black PE film for 2-3 turns, and placed at room temperature for 72 H to obtain the second laminated structure.
[0038] Then, the second laminated structure after tearing off the second release layer 4 is laminated on the first laminated structure, and the production of the matte black protective film is completed.
[0039] When packaging, after tearing off the first release layer 1, the matte black protective film is pressed and combined on the miniLED lamp panel 100 to complete the packaging.
[0040] As described above, by adjusting the structure of the protective film, the UV type adhesive layer 2 with viscosity reduction effect is used to replace the traditional plastic packaging glue to press and package the miniLED lamp panel 100, so that the protective film will not be completely laminated on the miniLED lamp panel 100, and when individual LED lamp beads are damaged during the production and use process, the whole protective film can be torn off without residue under the condition of room temperature and horizontal film tearing, so that the damaged LED lamp beads can be replaced individually, instead of the whole lamp panel being scrapped, thereby effectively reducing the maintenance and production cost.
[0041] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or direct or indirect application in other related technical fields based on the content of the present application is also included in the patent protection range of the present application.
Claims
1. A reworkable matte black protective film applied to miniLED light boards, characterized in that, It includes a first bonding structure and a second bonding structure that can be bonded together. The first bonding structure includes a first release layer (1), a UV-type adhesive layer (2) with a reducing tack effect, and a PET layer (3) bonded together in sequence. The UV-type adhesive layer (2) with a reducing tack effect is an acrylic adhesive layer formed by coating a reducing tack fast-curing acrylic adhesive onto the PET layer (3) and then drying and curing it. The second bonding structure includes a second release layer (4), a diffusion adhesive layer (5), an ag base film layer (6), and a silicone protective film layer (7) that are sequentially bonded together. After the second bonding structure is peeled off from the second release layer (4), the diffusion adhesive layer (5) is bonded to the PET layer (3) of the first bonding structure. After the first bonding structure is peeled off from the first release layer (1), the UV adhesive layer (2) is pressed onto the miniLED light panel (100).
2. The reworkable matte black protective film applied to miniLED light boards according to claim 1, characterized in that: The thickness of the UV-type adhesive layer (2) is L2, wherein the value of L2 ranges from 400 to 450 μm.
3. The reworkable matte black protective film applied to miniLED light boards according to claim 1, characterized in that: The PET layer (3) is a single-sided release film layer with a thickness of L3, wherein the value of L3 is 50 μm.
4. The reworkable matte black protective film applied to miniLED light boards according to claim 1, characterized in that: The diffusion adhesive layer (5) is a UV-type acrylic adhesive layer containing diffusion powder, and its thickness is L5, wherein the value of L5 ranges from 100 to 150 μm.
5. The reworkable matte black protective film applied to miniLED light boards according to claim 1, characterized in that: The ag base film layer (6) is an ink coating with an ag effect base film, and its thickness is L6, wherein the value of L6 is in the range of 70 to 75 μm.
6. The reworkable matte black protective film applied to miniLED light boards according to claim 1, characterized in that: The thickness of the silicone protective film layer (7) is L7, wherein the value of L7 is in the range of 50 μm.
7. The reworkable matte black protective film applied to miniLED light boards according to claim 1, characterized in that: The first release layer (1) is a single-sided lightweight PET release film with a thickness of L1, wherein the range of the L1 value is 100 μm and the release force is ≤10 g / inch.
8. The reworkable matte black protective film applied to miniLED light boards according to claim 1, characterized in that: The second release layer (4) is a PET single-sided release film with a thickness of L4, wherein the range of the L4 value is 50 μm and the release force is ≤10 g / inch.
9. A reworkable matte black protective film applied to a miniLED light board according to claim 1, characterized in that: The UV-type adhesive layer (2) is bonded to the PET layer (3) by high-temperature curing.
10. A reworkable matte black protective film applied to a miniLED light board according to claim 1, characterized in that: The diffusion adhesive layer (5) is bonded to the ink surface of the ag base film layer (6) by high-temperature UV curing.