WO2020133229A1

WO2020133229A1 - Flexible module for flexible electronic device

Info

Publication number: WO2020133229A1
Application number: PCT/CN2018/124923
Authority: WO
Inventors: 李贺
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2020-07-02
Also published as: CN112640105A

Abstract

A flexible module (100) for a flexible electronic device, comprising a substrate (10), a functional assembly (20), and a connection assembly (30). The substrate (10) comprises first areas (11) capable of being recoverably stretched or bent under the action of external forces, and second areas (13) connected to the first areas (11). The stretch rate of the second areas (13) is lower than that of the first areas (11); the functional assembly (20) comprises electronic components (21) mounted in the second areas (13); the connection assembly (30) comprises wires (31) for establishing electrical connection between the electronic components (21); each wire (31) comprise a stretchable section (32) provided in each first area (11) and capable of being stretched or bent together with each first area (11).

Description

Flexible module for flexible electronic equipment

Technical field

The present application relates to the technical field of flexible electronic equipment, in particular to a flexible module for flexible electronic equipment.

Background technique

As a new type of high-tech electronic products, flexible electronic equipment has been increasingly used in many fields. In order to meet the stretchable and bendable requirements of flexible electronic equipment, the flexible modules used in flexible electronic equipment and the wires on the flexible modules need to have sufficient flexibility and stretchability.

However, in the prior art solutions, when the flexible module substrate is stretched or bent, the electronic components and circuits on the substrate must also be stretched and bent together with the substrate, not only for the resistance of the electronic components and circuits to stretching And the performance requirements of bending resistance are very high, and when the substrate is stretched or bent at a large amplitude or frequently, the electronic components and circuits that are subject to stretching and bending are easily damaged, resulting in the durability of the overall structure Lower.

Summary of the invention

The present application provides a flexible module for solving the problem of low durability of the wiring structure of flexible electronic devices in the prior art.

According to an embodiment of the present application, a flexible module is provided. The flexible module includes a substrate, a functional component, and a connection component; the substrate includes a first capable of recoverable stretching or bending under an external force An area, and a second area connected to the first area, the second area has a stretch rate lower than that of the first area; the functional component includes being mounted on the second area Electronic components; the connection assembly includes a wire for establishing an electrical connection for the electronic component, the wire includes a wire provided in the first area that can be stretched or bent together with the first area Stretchable section.

Preferably, the tensile strength of the first area and the second area are consistent.

Preferably, the wire further includes a connecting section for connecting the stretchable section and the electronic component, and the connecting section is provided in the second area.

Preferably, the stretch ratio of the connecting section is smaller than the stretch ratio of the stretchable section.

Preferably, the stretchable section extends along a curve, and the connecting section extends along a straight line.

Preferably, the stretchable section is a wire manufactured independently of the substrate and bonded to the surface of the first area.

Preferably, the stretchable section is a stretchable trace formed on the surface of the substrate by a conductive material provided on the surface of the first region.

Preferably, the substrate includes a plurality of the first regions, the plurality of the first regions are stacked parallel to each other, and each of the first regions is provided with the stretchable section.

Preferably, the stretchable section is arranged in a plane parallel to the thickness direction of the substrate.

Preferably, the wire includes more than two stretchable sections, and a transit section connected between adjacent stretchable sections; the substrate further includes a preset provided in the first area Zone and a transit zone corresponding to the transit zone, the stretch rate of the transit zone is lower than the stretch rate of the first zone; the transit zone is provided on the corresponding transit zone.

Preferably, the area of the transit area is smaller than the area of the second area.

Preferably, the substrate further includes a protection area provided in a preset area in the first area, the protection area is provided corresponding to the stress concentration portion of the stretchable section, and the stretch rate of the protection area is lower than The stretch rate of the first region is described.

Preferably, the area of the protection area is smaller than the area of the second area.

Preferably, the first region and the second region contain material components of the same kind but different proportions.

Preferably, the substrate further includes a transition region connected between the first region and the second region, the stretch rate of the transition region is lower than that of the first region, but higher than the second region The stretch rate of the area.

Preferably, the first region, the second region, and the transition region contain the same kind of material components in different proportions.

According to the above-mentioned embodiment, in the flexible module provided by the present application, the first area can generate recoverable stretching and bending under the action of external force to meet the application needs of flexible electronic equipment; the wire can withstand stretching and The bendable stretchable section is arranged on the first area, and can generate a corresponding recoverable deformation along with the stretching and bending of the first area, ensuring that the flexible module always has good electrical connection performance. The connecting sections of electronic components and wires are not suitable to withstand stretching and bending. These components are arranged on the second area; when the first area is stretched and bent, the second area is stretched. The rate is very low, and the possibility of stretching and bending together with the first area is very small. Obviously, the electronic components arranged on the second area and the connecting section of the wire are also less affected by the pulling or bending force. In this way, the electronic components in the flexible module do not need to have flexibility and tensile resistance, and can use existing conventional devices, which is conducive to cost savings; under the protection of the second area, the first area is pulled Stretching and bending do not exert tension or bending force on electronic components, which is helpful to reduce the damage of electronic components and improve the durability and stability of the product; in addition, because the second area stretch rate is very low, so The process of installing the electronic components and the connecting section on the second area is also simpler than the process of installing them on the flexible substrate, which helps to shorten the processing time. Obviously, according to the above-mentioned design, the flexible module can have both good flexibility and elasticity, good durability and stability, and low cost.

BRIEF DESCRIPTION

FIG. 1 shows a schematic structural diagram of a flexible module provided by a preferred embodiment of the present application.

FIG. 2 shows a schematic structural view of arranging a stretchable section of a wire of a flexible module on a substrate provided by the first further preferred embodiment of the present application.

FIG. 3 shows a schematic structural view of arranging a stretchable section of a wire of a flexible module on a substrate provided by a second further preferred embodiment of the present application.

FIG. 4 shows a schematic structural view of arranging a stretchable section of a wire of a flexible module on a substrate according to a third further preferred embodiment of the present application.

FIG. 5 shows a schematic structural diagram of arranging a stretchable section of a wire of a flexible module on a substrate according to a fourth further preferred embodiment of the present application.

FIG. 6 shows a schematic structural diagram of arranging a stretchable section of a wire of a flexible module on a substrate provided by a fifth further preferred embodiment of the present application.

7 shows a schematic structural diagram of a flexible module provided by another preferred embodiment of the present application.

FIG. 8 shows a schematic structural diagram of a flexible module provided by another preferred embodiment of the present application.

detailed description

In order to make the purpose, technical solutions and advantages of the present application more clear, the following describes the present application in further detail with reference to the accompanying drawings and embodiments.

Referring to FIG. 1, a preferred embodiment of the present application provides a flexible module 100 that can be used in various flexible electronic devices such as a flexible touch screen and a flexible display screen. Specifically, the flexible module 100 includes a substrate 10, a functional component 20 and a connecting component 30.

The substrate 10 includes a first region 11 for withstanding bending and stretching, a transition region 12 for protecting between different regions with large differences in stretch rates, and a second region 13 for installing functional components 20 . The first area 11, the transition area 12 and the second area 13 are integrally formed, and do not need to be connected through other components. The first region 11 has good flexibility and tensile resistance, and can withstand repeated bending and stretching for many times, so that the flexible module 100 is suitable for various commonly used flexible electronic devices. The transition region 12 is formed in a selected region of the first region 11, and its flexibility and stretch rate are lower than those of the first region 11. In other words, the transition region 12 is less stretchable than the first region 11 stretchability. The second region 13 is preferably formed in the middle of the transition zone 12 and is completely surrounded by the transition zone 12. The stretch rate of the second region 13 is lower than that of the first region 11 and the transition region 12, and it is preferably not flexible and not stretchable.

In this embodiment, by blending a single or multiple stretchable materials and a single or multiple non-stretchable materials (except inorganic oxides and sheet materials) in different proportions, or by mixing two or more When the stretchable materials are blended in different proportions, at least two main materials are continuously distributed in various regions, showing the following mechanical and physical properties: the tensile strength is basically the same, but the tensile rate will be significantly different, that is Under different ratios, the force required for breaking is basically the same, but under the same pulling force, the amount of deformation is different. When multiple main materials are blended and at least one main material is continuously distributed in each region, and the other main materials are also uniformly distributed, the occurrence of tensile notches, offsets, or even breakage is greatly reduced. Therefore, based on the above principle, the substrate 10 including the first region 11, the transition region 12 and the second region 13 at the same time can be manufactured. The first region 11, the transition region 12 and the second region 13 preferably have the same tensile strength and different elongation rates, that is to say, the first region 11, the transition region 12 and the second region 13 are in the same Different deformations are produced under tension, but the force required to pull them off is the same or substantially the same.

The specific manufacturing method of the substrate 10 may be, for example, pre-blending the raw materials used to manufacture the regions with different stretch ratios (such as the first region 11, the transition region 12, and the second region 13), and then use The raw materials for manufacturing the regions with different stretch ratios are injected into the corresponding regions in the mold, respectively. For example, the raw materials mixed in a predetermined ratio can be injected into the corresponding areas of the mold in a sequential manner through dispensing or self-leveling, and after the material is cured and formed, a monolithic substrate with different stretch ratios in each area can be formed Based on this material, the above substrate 10 can be manufactured. The raw materials used to manufacture the regions with different stretch ratios may be, for example, a blend of polydimethylsiloxane and liquid silicone rubber, or polydimethylsiloxane and vinyl polymer doped with nanoparticles Silicone blends, but for raw materials for different purposes, the ratio of material components is different, so that the corresponding regions made of these raw materials can have different stretch rates. That is to say, the first region 11, the transition region 12 and the second region 13 may respectively contain the same kind of material components in different proportions, so as to obtain different stretch ratios.

In addition, in other preferred embodiments, the substrate 10 may not include the transition region 12 and only include the above-mentioned first region 11 and the second region 13 directly formed at a predetermined position in the first region 11.

The functional component 20 includes a plurality of electronic components 21, which may be, for example, chips, switches, terminals, pads, resistors, touch units, pixel units, and so on. These electronic components 21 can all use the existing electronic components used in the module, so there is no need to introduce their characteristics in detail here. Obviously, the electronic components 21 included in the functional component 20 are usually extremely low in stretch rate. When they are used in a flexible module, it can be considered that it does not occur with the stretching or bending of the flexible module Stretch or bend accordingly. In this embodiment, the electronic components 21 included in the functional module 20 are all mounted on the second area 13. One or more electronic components 21 can be mounted on each second area 13. If it is necessary to establish an electrical connection between the two electronic components 21 mounted on the same second area 13, then through the conductive path formed in the second area 13 (for example, the conventional way is arranged on a hard substrate Line) electrically connect the two electronic components 21 to each other; if two electronic components 21 installed on different second regions 13 need to be electrically connected, or an electronic component 21 needs to be connected to To establish an electrical connection to the outside world, the wires 31 in the connection assembly 30 are used to cross the transition area 12 and the first area 11 and the two electronic components 21 respectively installed on the two second areas 13 are electrically connected to each other, or The electronic component 21 is electrically connected to the outside world. The connection assembly 30 will be described in detail below.

The connection assembly 30 includes a plurality of wires 31 for transmitting signals or transmitting power. Each wire 31 includes a stretchable section 32 and a connecting section 33. The stretchable section 32 is arranged on or in the surface of the first region 11 and the transition zone 12, and preferably extends along the curve direction, and has a stretch-resistant curve-type routing design method. For example, in this embodiment, the stretchable section is preferably 32 is arranged into a horseshoe-shaped wiring, a wavy-shaped wiring, a sinusoidal-shaped wiring, a zigzag-shaped wiring, etc., so that the stretchable section 32 forms a plurality of continuous bends; when stretched, the stretchable section These bends of 32 can be straightened in whole or in part, so that the stretchable section 32 can have a sufficient length to meet the stretching requirements without being damaged by tension due to insufficient length. When the tension is eliminated, the stretchable section 32 can return to the original continuous curved shape. The connecting section 33 is formed at one or both ends of the stretchable section 32 and is preferably arranged on the surface of the second region 13. The connecting section 33 preferably adopts a linear routing design and extends along the linear direction.

In the above-mentioned flexible module 100, the first region 11 can generate recoverable stretching and bending under the action of external force, which meets the application needs of flexible electronic equipment; the wire 31 can withstand stretching and bending. The extension section 31 is arranged on the first area 11 and can generate a corresponding recoverable deformation along with the stretching and bending of the first area 11 to ensure that the flexible module always has good electrical connection performance. However, the connecting section 33 of the electronic component 21 and the wire 31 are not suitable to withstand stretching and bending. These components are arranged on the second area 13; when the first area 11 is stretched and bent, the first Since the stretching rate of the second region 13 is very low, the possibility of stretching and bending together with the first region 11 is very small. Obviously, the electronic component 21 arranged on the second area 13 and the connecting section 33 of the wire 31 are also less affected by the pulling or bending force. In this way, the electronic component 21 in the flexible module 100 does not need to have flexibility and tensile resistance, and can use existing conventional devices, which is conducive to cost savings; under the protection of the second region 13, the first The stretching and bending of the area 11 will not exert a pulling force or a bending force on the electronic component 21, which is helpful to reduce the damage of the electronic component 21 and improve the durability and stability of the product; in addition, due to the pulling of the second area 13 The elongation is very low, so the process of installing the electronic component 21 and the connecting section 33 on the second region 13 is also simpler than the process of installing them on the flexible substrate, which helps to shorten the processing time. Obviously, according to the above design, the flexible module 100 can have not only good flexibility and tensile resistance, but also good durability and stability, and low cost. The transition region 12 helps prevent cracks between the first region 11 and the second region 13 due to the difference in stretch rate when the substrate 10 is stretched or bent.

Please refer to FIG. 2 to FIG. 6, which respectively show schematic structural diagrams of arranging the stretchable section 32 of the wire 31 on the substrate 10 in five further preferred embodiments of the present application. These further preferred embodiments can be incorporated into the flexible module 100 shown in FIG. 1.

In the embodiment shown in FIG. 2, the stretchable section 32 of the wire 31 is a wire manufactured independently of the substrate 10, and is preferably an elastic wire. The stretchable section 32 can be manufactured by, for example, curving a flexible printed circuit board (FPC) or directly molding an elastic wire, and the shape is preferably manufactured into a stretch-resistant curved shape, for example Horseshoe shape, wave shape, sinusoidal shape, polyline shape, etc. The stretchable section 32 is bonded to the surface of the first region 11 and/or the transition region 12 of the substrate 10 after the manufacturing is completed, that is, the arrangement of the stretchable section 32 on the substrate 10 is completed. Corresponding connecting sections 33 can be formed at one or both ends of the stretchable section 32. In the embodiment shown in FIG. 2, the stretchable section 32 of the wire 31 is formed independently of the substrate 10, and the manufacturing process and assembly method are simple and easy.

In the embodiment shown in FIG. 3, the stretchable section 32 of the wire 31 is a stretchable trace formed on the surface of the substrate 10 by a conductive material attached to the surface of the substrate 10, and the specific formation method may be, for example, The conductive material is attached to the surface of the first region 11 and/or the transition region 12 of the substrate 10 by screen printing, spraying, sputtering, etc. to form the stretchable section 32, that is, the stretchable section 32 is completed The arrangement on the substrate 10. As described above, the shape of the stretchable section 32 is preferably manufactured into a stretch-resistant curved shape, such as a horseshoe shape, a wavy shape, a sinusoidal shape, a polyline shape, etc., to optimize its tensile properties; In addition, the tensile properties of the stretchable segment 32 can also be improved by adjusting the formulation of the conductive material used to manufacture the stretchable segment 32. In the embodiment shown in FIG. 3, the stretchable section 32 is directly formed on the surface of the substrate 10, which is beneficial to save material and reduce weight, and the two processes of manufacturing and assembly are combined into one, and the manufacturing process is simple.

In the embodiment shown in FIG. 4, the substrate 10 includes a plurality of the first regions 11, and the plurality of first regions 11 are stacked together in parallel or substantially parallel to each other to form a multilayer structure. The stretchable section 32 is provided on the first area 11, and the stretchable section 32 is preferably arranged on a plane perpendicular to the plane defined by the length and width directions of the substrate 10, or the substrate 10 in a plane parallel to the thickness direction (that is, if the plane on which the substrate 10 is located is regarded as a “transverse plane”, the stretchable section 32 is preferably arranged in a “longitudinal plane” perpendicular to the “transverse plane”) In this plane, it is bent into a curve shape that is resistant to stretching, such as a horseshoe shape, a wave shape, a sinusoidal shape, a polyline shape, etc. In this embodiment shown in FIG. 4, the stretchable section 32 is preferably formed in the encapsulating material on the substrate 10, and is preferably arranged in a plane perpendicular to the plane defined by the length and width directions of the substrate 10, or In a plane parallel to the thickness direction of the substrate 10, the stretchable section 32 can be better protected, and the wiring space in the horizontal direction can be reduced to facilitate layout of more lines.

In the embodiment shown in FIG. 5, most of the features are similar to the embodiment shown in FIG. 2. The stretchable section 32 of the wire 31 may also be a wire manufactured independently of the substrate 10, preferably an elastic wire. The shape is preferably manufactured into a stretch-resistant curved shape, such as a horseshoe shape, a sinusoidal shape, a zigzag shape, or the like. The main difference between the embodiment shown in FIG. 5 and the embodiment shown in FIG. 2 is that, in the embodiment shown in FIG. 5, each wire 31 includes more than two stretchable sections 32 and connected to adjacent The transfer section 34 between the stretchable sections 32, the transfer section 34 is preferably a wire segment arranged in a straight line; the base plate 10 further includes a transfer section 34 corresponding to the transfer section 34, which is preferably difficult under external force A transit zone 14 that stretches or bends along with the first zone 11, the transit zone 14 is preferably a low stretch zone formed in a predetermined zone on the surface of the first zone 11 and/or the transition zone 12 The stretch of the transition zone 14 should be at least less than the stretch of the first zone 11 and preferably also less than the stretch of the transition zone 12. The transfer area 14 may be formed at a predetermined position on the surface of the first area 11 and/or the transition area 12 by the same technical means as the above-mentioned second area 13, but the size of the transfer area 14 is preferably smaller than the second area 13 And, the electronic component 21 belonging to the functional assembly 20 is preferably not provided on the surface of the transit area 14. Each transfer section 34 is disposed in the corresponding transfer zone 14, for example, is bonded to the corresponding transfer zone 14. In the embodiment shown in FIG. 5, the transition zone 14 and the second zone 13 are deformed together with the first zone 11 by stretching or bending. The deformation is so small that it is negligible, and the conductor 31 can be placed in multiple positions. To provide more stable support and protection, and the transfer section 34 is preferably arranged in a linear shape with a shorter length, which is beneficial to shorten the overall length of the wire 31 and save material.

In the embodiment shown in FIG. 6, most of the features are similar to the embodiment shown in FIG. 2. The stretchable section 32 of the wire 31 may also be a wire manufactured independently of the substrate 10, preferably an elastic wire. The shape is preferably manufactured into a stretch-resistant curved shape, such as a horseshoe shape, a wavy shape, a sinusoidal shape, a polyline shape, and the like. The main difference between the embodiment shown in FIG. 6 and the embodiment shown in FIG. 2 is that in the embodiment shown in FIG. 6, the substrate 10 further includes preferably not to follow the first region 11 under the action of external force. The protection zone 15 that stretches or bends together, the protection zone 15 is preferably a low-stretch rate block formed in a predetermined area on the surface of the first region 11 and/or the transition zone 12, the protection zone 15 is pulled The elongation should be at least less than the elongation of the first region 11 and preferably also the elongation of the transition zone 12. The protection area 15 may be formed at a predetermined position on the surface of the first area 11 and/or the transition area 12 by the same technical means as the above-mentioned second area 13, but the size of the protection area 15 is preferably smaller than the second area 13 And, the electronic component 21 belonging to the functional assembly 20 is preferably not provided on the surface of the protection zone 15. In some other embodiments, the protection area 15 may also be formed at a predetermined position on the first area 11 by the same technical means as the technical means for forming the transition area 12. In the stretchable section 32 of each wire 31, according to its stress distribution during stretching, determine its stress concentration during stretching or the location with the highest risk of fracture (usually the location with the highest curvature, for example The apex of the curved part) as a protective part, and then when the stretchable section 32 is arranged on the first region 11 and/or the transition zone 12, the determined protective parts are arranged in the corresponding protective zone 15, for example, adhered to Corresponding protected area 15 The lower box in FIG. 6 shows an enlarged schematic view of the protection portion of the stretchable section 32 bonded to the corresponding protection area 15. In this embodiment shown in FIG. 6, the protection zone 15 and the second region 13 will not be stretched or bent together with the first region 11, and the stress can be concentrated in the stretchable section 32 of the wire 31 The location or the location with the highest risk of fracture provides stable support and protection, thereby further improving the stability and durability of the product.

FIG. 7 shows a schematic diagram of a partial structure of a flexible module 100A provided by another preferred embodiment of the present application. The flexible module 100A includes a substrate, a functional component, and a connection component. The substrate includes a first region 11A and a second region 13A formed in a predetermined region of the first region 11A. The functional component is arranged in the second region 13A In addition, the first area 11A, the second area 13A, and the functional component may have similar characteristics to the first area 11, the second area 13, and the functional component 20 of the flexible module 100 described above, respectively. The connection assembly includes a plurality of wires, and each wire includes a stretchable section 32A and a connection section (not shown in the figure), wherein the connection section is arranged in the second region 13A and established with each electronic component 21A of the functional assembly Electrically connected, the stretchable section 32A is arranged on the first region 11A, and may have similar characteristics to the stretchable section 32 of the wire 31 of the flexible module 100 described above. The main difference between the flexible module 100A and the flexible module 100 is that in the flexible module 100A, each wire includes a plurality of stretchable sections 32A and a plurality of connection sections, and the substrate includes a plurality of second regions 13A, every two adjacent stretchable sections 32A are electrically connected by connecting sections arranged on the second area 13A. The plurality of second regions 13A are arranged in a predetermined array form, which is used to adjust the overall routing direction of the wire, so that the overall routing direction of the wire can also form bends, angles, loops, etc. in addition to the straight direction. For various circuit structures. For example, as shown in FIG. 7, each wire includes four stretchable sections 32A. The four stretchable sections 32A are arranged in a rectangular loop through the connection sections provided on the four second regions 13A, respectively. The different electronic components 21A are electrically connected through a path outside the second region 13A. When the first region 11A is stretched or bent under the action of external force, the deformation of the connecting segment that is stretched or bent with the first region 11A is so small that it can be ignored, and the wire can be effectively protected from damage.

Obviously, the flexible module 100A can also obtain the beneficial technical effects of the flexible module 100 described above, and has a more flexible wire routing structure and higher applicability.

FIG. 8 shows a schematic diagram of a partial structure of a flexible module 100B provided by another preferred embodiment of the present application. The flexible module 100B includes a substrate, a functional component, and a connection component. The substrate includes a first region 11B and a second region 13B formed in a predetermined region of the first region 11B. The functional component is arranged in the second region 13B In addition, the first area 11B, the second area 13B, and the functional component may have similar characteristics to the first area 11, the second area 13, and the functional component 20 of the flexible module 100 described above, respectively. The connection assembly includes a plurality of wires, and each wire includes a stretchable section 32B and a connection section (not shown in the figure), wherein the connection section is arranged in the second region 13B and established with each electronic component 21B of the functional assembly Electrically connected, the stretchable section 32B is arranged on the first region 11B, and may have similar characteristics to the stretchable section 32 of the wire 31 of the flexible module 100 described above.

Further, in the flexible module 100B, the substrate is configured to be capable of being stretched in at least two mutually perpendicular stretching directions (for example, the X direction and the Y direction shown in FIG. 8) Recoverable tensile deformation is produced, that is, "bidirectional stretching" can be achieved. Among the plurality of wires, the overall routing direction of the stretchable section 32B of a part of the wires is along one of the at least two mutually perpendicular stretching directions (for example, the X direction shown in FIG. 8 ) Arrangement, the overall routing direction of the stretchable section 32B of another part of the wire is arranged along the other stretching direction (for example, the Y direction shown in FIG. 8) of the at least two mutually perpendicular stretching directions. The number of the second regions 13B is multiple (six are shown in FIG. 8, obviously other numbers), and each second region 13B is connected to at least one (two are shown in FIG. 8 Of course, it may be other numbers) the stretchable section 32B arranged in the overall routing direction along one of the at least two mutually perpendicular stretching directions (for example, the X direction shown in FIG. 8), And at least one (one shown in FIG. 8, obviously other numbers) the overall routing direction is along the other stretching direction of the at least two mutually perpendicular stretching directions (such as shown in FIG. 8 (Y direction) of the stretchable section 32B.

In the above flexible module 100B, when the substrate is stretched and deformed in the at least two mutually perpendicular stretching directions, the stretchable sections 32B connected to each second region 13B may The at least two mutually perpendicular stretching directions correspondingly produce a recoverable deformation to ensure that the flexible module still has good electrical connection performance under "bidirectional stretching". Regardless of the direction in which the substrate is stretched, the influence of the tensile force on the electronic component 21B and the connecting section of the wire installed in the second region 13B is so small that it is negligible. Obviously, the flexible module 100B can also obtain the beneficial technical effects of the flexible module 100 when subjected to “bidirectional stretching”.

The above are only the preferred embodiments of this application and are not intended to limit this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of this application should be included in this application Within the scope of protection.

Claims

A flexible module for flexible electronic equipment, characterized in that the flexible module includes a substrate, a functional component and a connection component; the substrate includes a third component capable of recoverable stretching or bending under the action of an external force A region, and a second region connected to the first region, the second region has a lower stretch rate than the first region; the functional component includes a second region Electronic components on the device; the connection assembly includes a wire for establishing an electrical connection for the electronic component, and the wire includes a wire provided in the first area that can be stretched or bent together with the first area Stretchable segment.
The flexible module according to claim 1, wherein the first region and the second region have the same tensile strength.
The flexible module according to claim 1, wherein the wire further comprises a connecting section for connecting the stretchable section and the electronic component, the connecting section is provided in the second area .
The flexible module according to claim 3, wherein the stretch rate of the connecting section is smaller than the stretch rate of the stretchable section.
The flexible module according to claim 3, wherein the stretchable section extends along a curve, and the connecting section extends along a straight line.
The flexible module according to claim 1, wherein the stretchable section is a wire manufactured independently of the substrate and bonded to the surface of the first region.
The flexible module according to claim 1, wherein the stretchable section is a stretchable walkway formed on the surface of the substrate by a conductive material provided on the surface of the first region line.
The flexible module according to claim 1, wherein the substrate includes a plurality of the first regions, the plurality of first regions are stacked parallel to each other, and each of the first regions Both are provided with the stretchable section.
The flexible module according to claim 8, wherein the stretchable section is arranged in a plane parallel to the thickness direction of the substrate.
The flexible module according to claim 1, wherein the wire comprises two or more stretchable sections, and a transit section connected between adjacent stretchable sections; the substrate further Including a preset area provided in the first area and corresponding to the transit area, the stretch rate of the transit area is lower than that of the first area; the transit area is set at Correspondingly on the transit area.
The flexible module according to claim 10, wherein the area of the transit area is smaller than the area of the second area.
The flexible module according to claim 1, wherein the substrate further comprises a protection area provided in a predetermined area in the first area, and the stress between the protection area and the stretchable section The concentrated parts are correspondingly set, and the stretch rate of the protection zone is lower than that of the first zone.
The flexible module according to claim 12, wherein the area of the protection area is smaller than the area of the second area.
The flexible module according to any one of claims 1-13, wherein the first area and the second area include material components of the same kind but different proportions.
The flexible module according to any one of claims 1 to 13, wherein the substrate further includes a transition region connected between the first region and the second region, and the stretch rate of the transition region Lower than the stretch rate of the first region, but higher than the stretch rate of the second region.
The flexible module according to claim 15, wherein the first region, the second region, and the transition region include material components of the same kind but different proportions.