CN214152296U - Flexible transparent LED display based on PET double-sided metal material - Google Patents
Flexible transparent LED display based on PET double-sided metal material Download PDFInfo
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- CN214152296U CN214152296U CN202022893215.4U CN202022893215U CN214152296U CN 214152296 U CN214152296 U CN 214152296U CN 202022893215 U CN202022893215 U CN 202022893215U CN 214152296 U CN214152296 U CN 214152296U
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Abstract
The utility model discloses a flexible transparent LED display based on two-sided metal material of PET relates to LED display screen field, including modified PET rete, modified PET rete is the modified PET rete of special transparent flexible LED display, and the outside of modified PET rete is provided with the ITO rete, and the outside of ITO rete is provided with the circuit layer, and the surface on circuit layer is provided with the SMT paster, the outside fixedly connected with LED lamp pearl of SMT paster. The utility model discloses an adopt modified PET rete, modified PET rete is flexible transparent film for the display screen of this device can curl wantonly, is provided with Ni-plated layer and plated Cu layer in the circuit in situ, adopts double-deck metal coating structure, has improved the adhesive force and the transparency of flexible display screen, and then makes flexible transparent display screen can be on a large scale with the wide-angle curling.
Description
Technical Field
The utility model relates to a LED display screen field, in particular to flexible transparent LED display based on two-sided metal material of PET.
Background
The conventional large display screen has a severe requirement on installation conditions because a non-planar installation surface may exist in both outdoor and indoor environments, and in such a case, the installation position needs to be changed or a special installation bracket needs to be designed to meet the installation requirement, however, both of the two methods may bring additional costs of labor, materials and the like, and the installation bracket may also increase the overall weight of the display screen. In view of the fact that seamless splicing of an LCD is difficult to achieve and a flexible framework is difficult to construct, flexible LED display screens are produced at the same time, the existing flexible LED display screens are mainly formed by arranging vertical LED lamp strips in sequence and utilizing a flat cable connection mode, but the existing flexible LED display screens are not provided with double-sided metal coating films and cannot be bent and curled at a large angle, and therefore the application range is small. Therefore, it is necessary to solve the above problems in the flexible transparent LED display based on the PET double-sided metal material.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flexible transparent LED display based on two-sided metal material of PET to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a flexible transparent LED display based on two-sided metal material of PET, includes the modified PET rete, the modified PET rete adds modified material in the PET material, specially is the modified PET rete of transparent flexible LED display, the outside on modified PET rete is provided with the ITO rete, the outside on ITO rete adopts technology to make the circuit layer, the circuit layer adopts FPC manufacturing process to form the circuit on the metal surface, the surface on circuit layer is provided with the SMT paster, the SMT paster is welding LED lamp pearl and electronic components on the FPC circuit.
Preferably, the modified PET rete includes the PET base plate, one side coating of PET base plate has the OCA glue film, the outside of OCA glue film bonds and has the PET protection film.
Preferably, the SMT paster is provided with a plurality of, and a plurality of SMT paster are the rectangular array and distribute.
Preferably, the circuit layer comprises a circuit arranged on the outer side of the ITO film layer, a Ni-plated layer is arranged at the bottom of the circuit, and a Cu-plated layer is arranged on the outer side of the Ni-plated layer.
Preferably, the thickness of the Ni-plated layer is 1.5-3um, and the thickness of the Cu-plated layer is 12-18 um.
A preparation method of a flexible transparent LED display based on a PET double-sided metal material comprises the following steps:
the method comprises the following steps: modifying the PET substrate, namely coating an OCA adhesive layer on one side of the PET substrate, and then bonding and pressing a PET protective film on the outer side of the OCA adhesive layer to form a modified PET film layer;
step two: plating an ITO film layer on the outer side of the modified PET film layer, then generating a circuit on the outer side of the ITO film layer through a grinding and recessing technology, and then plating a Ni layer and a Cu layer in the circuit through a vacuum coating machine, wherein the thickness of the Ni layer is 1.5-3um, and the thickness of the Cu layer is 12-18 um;
step three: performing circuit etching on the Cu-plated layer through a high-speed laser etching device, and increasing the thickness of a conductive film on the Cu-plated layer by utilizing an FPC (flexible printed circuit) manufacturing process to form a flexible transparent LED display circuit;
step four: growing the metal on two sides of the modified PET film layer by a coating process to form a double-sided display panel;
step five: and (3) attaching the LED lamp beads on the circuit board by adopting an SMT (surface mount technology) process, then solidifying the LED lamp beads and the electronic components on the outer side of the Cu-plated layer by adopting a low-humidity solder paste reflow soldering process to obtain a finished product of the flexible transparent LED display, and finally carrying out online detection on the LED display screen.
Preferably, the coating process in the fourth step adopts a roll-to-roll coating technology (RR) and corresponding integrated equipment.
The utility model discloses a technological effect and advantage:
1. the utility model adopts the modified PET film layer which is a flexible transparent film, so that the display screen of the device can be curled at will, the Ni-plated layer and the Cu-plated layer are arranged in the circuit layer, and the double-layer metal coating structure is adopted, so that the strength and the electrical appliance performance of the flexible display screen are improved, and the flexible display screen can be curled in a large range and at a large angle;
2. the utility model discloses compare with traditional photoelectric film, have can curl, shock-resistant, ultralight ultra-thin, the handling ease with carry, through adopting the volume to volume technology, improved the efficiency of production, the cost is reduced.
Drawings
Fig. 1 is a schematic sectional view of the structure of the present invention.
Fig. 2 is a schematic sectional view of the modified PET film structure of the present invention.
Fig. 3 is a schematic cross-sectional view of the circuit layer structure of the present invention.
In the figure: 2. modifying a PET film layer; 3. an ITO film layer; 4. a circuit layer; 5. SMT pasting; 6. LED lamp beads; 7. a PET substrate; 8. an OCA glue layer; 9. a PET protective film; 10. a line; 11. plating a Ni layer; 12. and plating a Cu layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a flexible transparent LED display based on PET two-sided metal material as shown in figures 1-3, including modified PET rete 2, modified PET rete 2 is the PET rete that adds modified material in the PET material, specially for transparent flexible LED display modification, modified PET rete 2 includes PET base plate 7, one side of PET base plate 7 is coated with OCA glue film 8, the outside of OCA glue film 8 is adhered with PET protection film 9, the outside of modified PET rete 2 is provided with ITO rete 3, the outside of ITO rete 3 adopts technology to make circuit layer 4, circuit layer 4 adopts FPC manufacturing process to form the circuit on the metal surface, circuit layer 4 includes the circuit 10 of seting in the ITO rete 3 outside, the tank bottom of circuit 10 is provided with Ni plating layer 11, the outside of Ni plating layer 11 is provided with Cu plating layer 12, the thickness of Ni plating layer 11 is 1.5-3um, the thickness of Cu plating layer 12 is 12-18um, the surface of circuit layer 4 is provided with SMT paster 5, and SMT paster 5 is provided with a plurality ofly, and a plurality of SMT pasters 5 are rectangular array and distribute, and SMT paster 5 is welding LED lamp pearl 6 and electronic components on FPC circuit.
The utility model also discloses a preparation method of flexible transparent LED display based on two-sided metal material of PET, including following step:
the method comprises the following steps: carry out modification treatment to PET base plate 7, one side coating at PET base plate 7 has OCA glue film 8 promptly, then bonds PET protection film 9 in OCA glue film 8's outside and pressfitting, forms modified PET rete 2:
step two: plating an ITO film layer 3 on the outer side of the modified PET film layer 2, then generating a circuit 10 on the outer side of the ITO film layer 3 through a grinding and recessing technology, and then plating a Ni layer 11 and a Cu layer 12 in the circuit 10 through a vacuum coating machine, wherein the thickness of the Ni layer 11 is 1.5-3um, and the thickness of the Cu layer 12 is 12-18 um;
step three: performing circuit etching on the Cu-plated layer 12 through a high-speed laser etching device, and increasing the thickness of a conductive film on the Cu-plated layer 12 by utilizing an FPC (flexible printed circuit) manufacturing process to form a flexible transparent LED display circuit;
step four: growing the metal on two sides of the modified PET film layer 2 by a coating process to form a double-sided display panel;
step five: the LED lamp beads 6 are attached to the circuit board 4 through an SMT process, the LED lamp beads 6 and electronic components are solidified on the outer side of the Cu-plated layer 12 through a low-humidity solder paste reflow soldering process, a finished flexible transparent LED display is obtained, and finally online detection is conducted on the LED display screen.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. The utility model provides a flexible transparent LED display based on two-sided metallic material of PET, includes modified PET rete (2), its characterized in that: modified PET rete (2) add modified material in the PET material, the modified PET rete of special transparent flexible LED display, the outside of modified PET rete (2) is provided with ITO rete (3), the outside of ITO rete (3) adopts technology to make circuit layer (4), circuit layer (4) adopt FPC manufacturing process to form the circuit at the metal surface, the surface of circuit layer (4) is provided with SMT paster (5), SMT paster (5) are welding LED lamp pearl (6) and electronic components on FPC circuit.
2. The flexible transparent LED display based on PET double-sided metal material as claimed in claim 1, wherein: modified PET rete (2) include PET base plate (7), one side coating of PET base plate (7) has OCA glue film (8), the outside of OCA glue film (8) bonds and has PET protection film (9).
3. The flexible transparent LED display based on PET double-sided metal material as claimed in claim 1, wherein: the SMT patch (5) is provided with a plurality of SMT patches (5), and the plurality of SMT patches (5) are distributed in a rectangular array.
4. The flexible transparent LED display based on PET double-sided metal material as claimed in claim 1, wherein: the circuit layer (4) comprises a circuit (10) arranged on the outer side of the ITO film layer (3), a Ni-plated layer (11) is arranged at the bottom of the circuit (10), and a Cu-plated layer (12) is arranged on the outer side of the Ni-plated layer (11).
5. The flexible transparent LED display based on PET double-sided metal material as claimed in claim 4, wherein: the thickness of the Ni-plated layer (11) is 1.5-3um, and the thickness of the Cu-plated layer (12) is 12-18 um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022893215.4U CN214152296U (en) | 2020-12-04 | 2020-12-04 | Flexible transparent LED display based on PET double-sided metal material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022893215.4U CN214152296U (en) | 2020-12-04 | 2020-12-04 | Flexible transparent LED display based on PET double-sided metal material |
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| CN214152296U true CN214152296U (en) | 2021-09-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112419915A (en) * | 2020-12-04 | 2021-02-26 | 深圳市前海恒云联科技有限公司 | Flexible transparent LED display based on PET double-sided metal material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112419915A (en) * | 2020-12-04 | 2021-02-26 | 深圳市前海恒云联科技有限公司 | Flexible transparent LED display based on PET double-sided metal material |
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