CN114464096B - electronic skin - Google Patents
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- CN114464096B CN114464096B CN202210291132.9A CN202210291132A CN114464096B CN 114464096 B CN114464096 B CN 114464096B CN 202210291132 A CN202210291132 A CN 202210291132A CN 114464096 B CN114464096 B CN 114464096B
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- electronic
- adhesive layer
- electronic equipment
- equipment body
- layer
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- 239000012790 adhesive layer Substances 0.000 claims abstract description 128
- 239000010410 layer Substances 0.000 claims abstract description 76
- 230000001681 protective effect Effects 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 9
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 8
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- -1 polyethylene terephthalate Polymers 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 description 15
- 230000005489 elastic deformation Effects 0.000 description 10
- 238000013461 design Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 229920000297 Rayon Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000059 patterning Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229920001621 AMOLED Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Laminated Bodies (AREA)
Abstract
The disclosure provides an electronic skin, and belongs to the technical field of electronics. The electronic skin comprises an electronic equipment body, a plurality of adhesive layers and a protective film layer, wherein the electronic equipment body and the adhesive layers are sequentially laminated, the protective film layer is positioned between two adjacent adhesive layers, and the adhesive layers can adhere the electronic equipment body to human skin. Because the modulus of the adhesive layer at one side far away from the electronic equipment body (namely, near the human skin) is smaller than that of the adhesive layer at one side near the electronic equipment body (namely, far away from the human skin), and the protective film layer is provided with a plurality of through holes, the stress generated by the deformation of the human skin can be fully released to the low-modulus adhesive layer at one side far away from the electronic equipment body, and the purpose of modifying the stress distribution can be achieved through the through holes. Therefore, the stress borne by the electronic equipment body is smaller and more uniform, and the working stability of the electronic equipment body is better.
Description
Technical Field
The disclosure relates to the field of electronic technology, and in particular relates to an electronic skin.
Background
As the name implies, electronic skin refers to an electronic device that can be attached to human skin.
Currently, electronic skin generally includes: the electronic device comprises an electronic device body (such as a stretchable display) and an adhesive layer positioned on one side of the electronic device body, wherein the adhesive layer is used for adhering the electronic device body to skin.
However, the human skin deforms under the traction of the human muscle, so that the stress on the electronic equipment body is uneven, and the working stability of the electronic equipment body is poor.
Disclosure of Invention
The embodiment of the disclosure provides an electronic skin, which can solve the problem of poor working stability of an electronic device body caused by uneven stress of the electronic device body in the related art.
The technical scheme is as follows:
in one aspect, there is provided an electronic skin comprising:
an electronic device body;
the adhesive layers are positioned on one side of the electronic equipment body and are sequentially laminated, the modulus of at least two layers of adhesive layers is different, and the modulus of the adhesive layer on one side far away from the electronic equipment body is smaller than that of the adhesive layer on one side close to the electronic equipment body;
and the protective film layer is positioned between at least two adjacent viscose layers and is provided with a plurality of first through holes.
Optionally, the electronic skin includes: two layers of adhesive layers.
Optionally, one side of the two layers of adhesive layers, which is close to the electronic equipment bodyModulus of the adhesive layer of (2) is at 10 8 -10 11 Between the handkerchiefs, the modulus of the adhesive layer at the side far away from the electronic equipment body is 10 3 -10 6 Between the handkerchiefs.
Optionally, the electronic skin further comprises: and a water blocking layer positioned between the protective film layer and the viscose layer.
Optionally, the water-blocking layer between the protective film layer and the adhesive layer far away from the electronic device body has a plurality of second through holes;
the orthographic projection of the plurality of second through holes on the electronic equipment body is overlapped with the orthographic projection of the plurality of first through holes on the electronic equipment body.
Optionally, the opening of the first through hole and the opening of the second through hole each have at least one rounded corner.
Optionally, the material of the water-blocking layer includes: silicon nitride material or silicon oxide material.
Optionally, the material of the protective film layer includes: polyethylene terephthalate PET material.
Optionally, the material of the adhesive layer includes: a pressure sensitive adhesive material.
Optionally, the electronic device body includes: a stretchable display or a stretchable sensor.
In summary, the beneficial effects brought by the technical solution provided by the embodiments of the present disclosure at least may include:
the electronic skin comprises an electronic equipment body, a plurality of adhesive layers and a protective film layer, wherein the electronic equipment body and the adhesive layers are sequentially laminated, the protective film layer is positioned between two adjacent adhesive layers, and the adhesive layers can adhere the electronic equipment body to human skin. Because the modulus of the adhesive layer at one side far away from the electronic equipment body (namely, near the human skin) is smaller than that of the adhesive layer at one side near the electronic equipment body (namely, far away from the human skin), and the protective film layer is provided with a plurality of through holes, the stress generated by the deformation of the human skin can be fully released to the low-modulus adhesive layer at one side far away from the electronic equipment body, and the purpose of modifying the stress distribution can be achieved through the through holes. Therefore, the stress borne by the electronic equipment body is smaller and more uniform, and the working stability of the electronic equipment body is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic illustration of an electronic skin structure provided in an embodiment of the present disclosure;
fig. 2 is a schematic structural view of a protective film according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of another electronic skin provided by an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a further electronic skin provided by an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of a further electronic skin provided by an embodiment of the present disclosure;
FIG. 6 is a schematic view of a water barrier according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of deformation of electronic skin when stressed, according to an embodiment of the disclosure.
Reference numerals illustrate:
01-an electronic equipment body, 02-an adhesive layer, 03-a protective film layer and 04-a water-resistant layer;
k1-first through hole, K2-second through hole.
Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the embodiments of the present disclosure will be described in further detail below with reference to the accompanying drawings.
With the progress of display technology, electronic products, i.e., electronic skin, which can be adhered to human skin (skin) have been developed. Among them, a display device which includes a stretchable display (stretchable display) or a stretchable sensor and which is attachable to the skin of a human body belongs to an application of electronic skin, which application may also be referred to as skin display application. The stretchable display may be referred to as an electronic device body in the electronic skin.
Wherein the stretchable display may include a display panel on which a paper-cut structure having an opening is generally disposed to provide a stretching amount by deformation of the shape of the opening; alternatively, the display panel may be provided in a pleated structure to achieve a deformation effect through three-dimensional variation on the pleated structure; alternatively, the display panel is of an elastic structure, i.e., made of an elastic material, so as to be stretch-deformed by the elastic material. In addition, under the traction of the change of the human muscle, the human skin naturally deforms to different degrees, and the deformation can drive the stretchable display to generate a dynamic stretchable display effect.
However, according to the test, if the stretching amplitude is large and/or the stretching time is long, the stress of the stretchable display is uneven, the working stability of the stretchable display is affected, and the display effect is poor. The reliability of the current electronic skin is poor, and the requirements of users cannot be met well.
Thus, the disclosed embodiments provide a new electronic skin. The electronic skin can fully release stress generated by deformation of human skin into the low-modulus adhesive layer by adopting the adhesive layers with different moduli, so that the influence of the stress on the electronic equipment body (such as the stretchable display recorded in the embodiment) is reduced, the working stability of the electronic equipment body is ensured to be better, and the reliability of products is higher.
Fig. 1 is a schematic structural diagram of an electronic skin according to an embodiment of the present disclosure. As shown in fig. 1, the electronic skin includes: an electronic device body 01, a plurality of adhesive layers 02 which are arranged on one side of the electronic device body 01 and are sequentially laminated, and a protective film layer 03 which is arranged between at least two adjacent adhesive layers 02.
By way of example, referring to fig. 1, an electronic skin is shown comprising two adhesive layers 02, and a protective film layer 03 between the two adhesive layers 02. Fig. 1 also schematically shows human skin.
The multi-layer adhesive layer 02 can be used for adhering the electronic device body 01 to human skin. In the multilayer adhesive layer 02, at least two adhesive layers 02 have different moduli. For example, the modulus of each adhesive layer 02 may be different.
And, in the multi-layer adhesive layer 02, the modulus of the adhesive layer 02 at the side far from the electronic device body 01 is smaller than the modulus of the adhesive layer 02 at the side near to the electronic device body 01. That is, the modulus of the adhesive layer 02 on the side close to the human skin is smaller than the modulus of the adhesive layer 02 on the side far from the human skin. In other words, the modulus of the adhesive layer 02 directly adhered to the human skin may be smaller, referred to as a low modulus adhesive layer 02. The adhesive layer 02 directly adhered to the electronic device body 01 may have a large modulus, which is referred to as a high modulus adhesive layer 02.
The modulus of the adhesive layer 02 refers to: after the adhesive layer 02 is cured, the ratio of stress to strain in the stressed state can be regarded as an index for measuring the difficulty of elastic deformation of the adhesive layer 02. The modulus of the adhesive layer 02 is inversely related to the elastic deformation of the adhesive layer 02 under a certain stress. That is, the greater the modulus of the adhesive layer 02, the greater the stress at which the adhesive layer 02 is elastically deformed to some extent, that is, the smaller the elastic deformation is caused under the action of a certain stress. Conversely, the smaller the modulus of the adhesive layer 02, the smaller the stress of the adhesive layer 02 for certain elastic deformation, i.e. the larger the elastic deformation under the action of certain stress.
Based on this, by setting the modulus of the adhesive layer 02 on the side close to the human skin to be smaller than the modulus of the adhesive layer 02 on the side far away from the human skin, when the human skin is deformed to generate stress, the elastic deformation of the adhesive layer 02 on the side close to the human skin is larger than the elastic deformation of the adhesive layer 02 on the side far away from the human skin. That is, the stress is sufficiently released on the low modulus adhesive layer 02 on the side close to the skin of the human body, and the influence of the stress on the electronic apparatus body 01 is reduced, thereby improving the working stability of the electronic apparatus body 01. In addition, the adhesive layer 02 near the electronic device body 01 can also be used for stabilizing the electronic device body 01.
Taking the structure shown in fig. 1 as an example, fig. 2 shows a top view of a protective film 03. As can be seen in conjunction with fig. 1 and 2, the protective film 03 according to the embodiments of the present disclosure may have a plurality of first through holes K1, and the first through holes K1 may also be referred to as openings penetrating the protective film 03.
The protective film 03 can be used for effectively protecting the upper and lower adjacent film layers, and can enable a plurality of first through holes K1 of the moisture generated by the skin of a human body to be discharged from the adhesive layer 02. In addition, the arrangement of the first through hole K1 on the protective film 03 can modify stress distribution, so that the stress borne by the electronic equipment body 01 can be relatively uniform, and the working stability of the electronic equipment body 01 is further improved.
Alternatively, in the embodiment of the present disclosure, the plurality of first through holes K1 may be obtained through a patterning (pattern) process.
For example, a protective film may be provided first, and then the protective film is patterned by using a mask to form a plurality of first through holes K1 penetrating the protective film, so as to obtain the protective film 03 having the first through holes K1.
In summary, the embodiment of the disclosure provides an electronic skin, which includes an electronic device body and a plurality of adhesive layers stacked in sequence, and a protective film layer between two adjacent adhesive layers, where the adhesive layers can adhere the electronic device body to human skin. Because the modulus of the adhesive layer at one side far away from the electronic equipment body (namely, near the human skin) is smaller than that of the adhesive layer at one side near the electronic equipment body (namely, far away from the human skin), and the protective film layer is provided with a plurality of through holes, the stress generated by the deformation of the human skin can be fully released to the low-modulus adhesive layer at one side far away from the electronic equipment body, and the purpose of modifying the stress distribution can be achieved through the through holes. Therefore, the stress borne by the electronic equipment body is smaller and more uniform, and the working stability of the electronic equipment body is better.
Optionally, fig. 3 is a schematic structural diagram of another electronic skin provided in an embodiment of the disclosure. As can be seen with reference to fig. 1 and 3, the electronic skin described in the embodiments of the present disclosure may include: two adhesive layers 02.
One adhesive layer 02 can be used for directly adhering to the skin of a human body, and the other adhesive layer 02 can be directly adhered to the electronic equipment body 01. That is, the electronic skin described in embodiments of the present disclosure may be a two-layer adhesive design. And, on this basis, the electronic skin may include a protective film 03 between the two adhesive layers 02.
To distinguish the two adhesive layers 02, the adhesive layer 02 directly adhered to the skin of the human body is denoted as 02 (1) in fig. 3, and the adhesive layer 02 directly adhered to the electronic device body 01 is denoted as 02 (2).
Optionally, with continued reference to fig. 3, in the two adhesive layers 02 described in the embodiments of the present disclosure, the adhesive layer 02 near one side of the electronic device body 01, that is, the modulus of the adhesive layer 02 (2) may be located at 10 8 -10 11 Pa (Pa). An adhesive layer 02 on the side far away from the electronic device body 01, namely the modulus of the adhesive layer 02 (1) is 10 3 -10 6 Pa.
Wherein the modulus of the adhesive layer 02 (2) is 10 8 -10 11 Between Pa may be referred to as: the modulus of the adhesive layer 02 (2) may be 10 or more 8 Pa is less than or equal to 10 11 Pa. Similarly, the modulus of the adhesive layer 02 (1) is at 10 3 -10 6 Between Pa may be referred to as: the modulus of the adhesive layer 02 (1) may be 10 or more 3 Pa is less than or equal to 10 6 Pa。
It should be noted that the measurement frequency corresponding to the modulus may be between 0.1 hertz (Hz) and 1 Hz. That is, the above modulus may be measured in a scene where the frequency is 0.1Hz or more and 1Hz or less. Here, the frequency may refer to a vibration frequency emitted for generating the deformation.
As described in the above embodiments, in the dual-layer adhesive design, the low-modulus adhesive layer 02 (1) can be used for stress relief, and the high-modulus adhesive layer 02 (2) can be used for stabilizing the electronic device body 01.
Optionally, with continued reference to fig. 3, it may further be seen that the electronic device body 01 described in the embodiment of the present disclosure may include: a stretchable display. Accordingly, as described in the above embodiments, the application scenario of the electronic skin is a skin display application, and the electronic skin may be used to implement a display function. Further, the display effect of the stretchable display can be improved on the premise of improving the working stability of the stretchable display.
Of course, in some other embodiments, the electronic device body 01 may further include a stretchable sensor, i.e. a sensor circuit. Further, on the premise of improving the operation stability of the sensor circuit, the sensing result of the sensor circuit can be improved. For example, the sensor circuit may be a pressure sensor circuit, and accordingly, the electronic skin comprising the electronic device body 01 may be used for sensing the pressure applied to the human skin.
The electronic device body 01 may be any other stretchable electronic product that can be attached to the skin of a human body, and is not limited to the display or the sensor circuit described in the above embodiments.
Optionally, the stretchable display according to the embodiments of the present disclosure may include a display panel that is: an organic light-emitting diode (OLED) display panel, an active-matrix organic light-emitting diode (AMOLED) display, or any other component having a display function, such as a liquid crystal display panel.
Optionally, the materials of the adhesive layer 02 described in the embodiments of the present disclosure may include: a pressure sensitive adhesive material. Accordingly, as shown in fig. 3, the adhesive layer 02 may also be referred to as a pressure sensitive adhesive.
Optionally, materials of the protective film 03 according to the embodiments of the present disclosure include: polyethylene terephthalate (polyethylene terephthalat, PET). Accordingly, as shown in fig. 3, the protective film 03 having the first through hole K1 may also be referred to as a patterned PET material layer.
Fig. 4 is a schematic structural view of yet another electronic skin provided by an embodiment of the present disclosure. As shown in fig. 4, the electronic skin described in the embodiment of the present disclosure may further include: a water-resistant layer 04 positioned between the protective film 03 and the adhesive layer 02. That is, the upper and lower sides of the protective film 03 may be respectively provided with the corresponding water blocking layers 04.
The water-resistant layer 04 can be used for reliably blocking moisture generated by human skin, and guiding the moisture to be distributed towards the side of the adhesive layer 02, so as to avoid the problem that the moisture diffuses upwards and invades the electronic equipment body 01 (the stretchable display in fig. 4) to cause damage to devices in the electronic equipment body 01. That is, by providing the water blocking layer 04, it is possible to further effectively protect the electronic apparatus body 01.
Optionally, since the protective film 03 is disposed between two adjacent adhesive layers 02, as shown in fig. 4, a water-blocking layer 04 may be disposed between the protective film 03 and the two adhesive layers 02. That is, the electronic skin may include two water blocking layers 04 on the basis of including two adhesive layers 02 and one protective film layer 03.
One water-blocking layer 04 may be located between the protective film 03 and the adhesive layer 02 (1) on the side far away from the electronic device body 01, and the other water-blocking layer 04 may be located between the protective film 03 and the adhesive layer 02 (2) on the side near the electronic device body 01.
Of course, in some other embodiments, only the water-blocking layer 04 may be disposed between the protective film 03 and the adjacent adhesive layer 02. That is, the electronic skin may include only one water-blocking layer 04.
Optionally, the material of the water-blocking layer 04 according to the embodiment of the disclosure may include: inorganic (organic) materials such as silicon nitride (SiN) and silicon oxide (SiO). That is, as still another electronic skin shown in fig. 5, the water blocking layer 04 may be an inorganic material layer.
To distinguish the two water-blocking layers 04, the water-blocking layer 04 on the side far from the electronic device body 01 is denoted as 04 (1) in fig. 5, and the water-blocking layer 04 on the side near the electronic device body 01 is denoted as 04 (2).
Alternatively, taking the structure shown in fig. 5 as an example, fig. 6 shows a top view of a water blocking layer 04 (1). As can be seen with reference to fig. 6, the water blocking layer 04 (1), i.e. the water blocking layer 04 (1) between the protective film 03 and the adhesive layer 02 (1) on the side remote from the electronic device body 01, may have a plurality of second through holes K2.
In connection with fig. 2, in an embodiment of the present disclosure, orthographic projections of the plurality of second through holes K2 on the electronic device body 01 may overlap orthographic projections of the plurality of first through holes K1 on the electronic device body 01. Here, overlapping may mean that the plurality of first through holes K1 and the plurality of second through holes K2 overlap one another, and accordingly, the number of second through holes K2 provided in the water blocking layer 04 may be considered to be the same as the number of first through holes K1 provided in the protective film 03.
Of course, in some other embodiments, overlapping may also mean that there is overlap of the plurality of second vias K2 with the plurality of first vias K1.
The waterproof layer 04 (1) on one side far away from the electronic equipment body 01 is further provided with the second through hole K2, so that stress generated by deformation of human skin can be effectively reduced on one side far away from the electronic equipment body 01, the purpose of further modifying stress distribution is achieved, the stress borne by the electronic equipment body 01 due to deformation of the human skin is more uniform, and the working stability of the electronic equipment body 01 is further improved.
Alternatively, the plurality of second through holes K2 may be formed by patterning, in the same manner as the formation of the first through holes K1.
For example, a layer of water blocking film may be provided first, and then a mask is used to pattern the water blocking film to form a plurality of second through holes K2 penetrating the water blocking film, so as to obtain the water blocking layer 04 with the second through holes K2.
Alternatively, on the basis that the first through holes K1 and the second through holes K2 are overlapped in one-to-one correspondence, the first through holes K1 and the second through holes K2 can be formed simultaneously through one patterning process, so that the operation is simplified, and the cost is saved.
Alternatively, the opening of the first through hole K1 and the opening of the second through hole K2 described in the embodiments of the present disclosure may each have at least one rounded corner.
For example, referring to fig. 2 and 6, the shape of the opening of the first through hole K1 and the opening of the second through hole K2 described in the embodiments of the present disclosure may be rectangular with four rounded corners.
Of course, in some other embodiments, the openings of the first through hole K1 and the second through hole K2 may be circular or elliptical or have other rounded shapes.
The shape of the opening may be a shape of an orthographic projection of the opening on the electronic device body 01, or may be a shape of an orthographic projection of the through hole (including the first through hole K1 and the second through hole K2) itself on the electronic device body 01.
Through setting up the opening of first through-hole K1 and the opening of second through-hole K2 all have at least one fillet, can reach the purpose that further decorates stress distribution for electronic equipment body 01 receives more even because of human skin deformation, thereby further improves electronic equipment body 01's job stabilization nature.
Optionally, in the embodiment of the present disclosure, a substrate may be further disposed between the electronic device body 01 and the adhesive layer 02 (e.g., the adhesive layer 02 (2)) that is directly adhered to the electronic device body 01, so as to effectively protect the electronic device body 01. The substrate may be a stretchable flexible substrate.
Optionally, when leaving the factory, a release layer may be further disposed on a side of the adhesive layer 02 (e.g., the adhesive layer 02 (1)) away from the electronic device body 01, so as to protect the adhesion of the adhesive layer 02. After shipment, the user can adhere the rest to his skin, such as the skin of his arm, by peeling the release layer through the adhesive layer 02. The electronic skin may be referred to as a new type of wearable device.
Alternatively, in embodiments of the present disclosure, the thickness of each of the film layers included in the electronic skin, such as the adhesive layer 02, the protective film layer 03, and the water blocking layer 04, may be greater than 0 micrometers (μm) and less than or equal to 100 μm. For example, 50 μm is possible. The electronic skin has smaller overall thickness and is more convenient to wear.
In conjunction with the foregoing, embodiments of the present disclosure focus on Module (MDL) structural design of electronic skin. For example, the MDL design may include: (1) design of a multi-layer adhesive layer 02; (2) designing different moduli of each viscose layer 02; (3) The design of the protective film 03 and the water-resistant layer 04 between two adjacent viscose layers 02, the design of the through holes on the protective film 03 and the water-resistant layer 04, and the like. And then the matching of materials (such as pressure sensitive adhesive materials, inorganic materials and PET materials) among the layers is combined, so that the aim of relieving the stress applied to the electronic equipment body 01 and enabling the stress on the electronic equipment body 01 to be more uniform is fulfilled. Therefore, the working stability of the electronic equipment body 01 is further improved, such as the display quality of the stretchable display is improved, and the product reliability of the electronic skin is further improved.
By way of example, taking the structure shown in fig. 5 as an example, fig. 7 shows a schematic diagram of deformation of electronic skin when the electronic skin is stressed according to an embodiment of the disclosure. Referring to fig. 7, it can be seen that in the embodiment of the present disclosure, stress generated by deformation of human skin is sufficiently released on the adhesive layer 02 (1) having a low modulus, and elastic deformation of the adhesive layer 02 (1) is large. The stress can be smaller when reaching the high modulus adhesive layer 02 (2), and the elastic deformation of the adhesive layer 02 (2) is smaller. Eventually, the tensile display is stressed less and more uniformly. In fig. 7, the size of the elastic deformation is indicated by arrows.
It should be noted that, as described in the above embodiments, the electronic skin provided in the embodiments of the present disclosure is specifically an electronic product that can be adhered to the skin of a human body through the adhesive layer.
In summary, the embodiment of the disclosure provides an electronic skin, which includes an electronic device body and a plurality of adhesive layers stacked in sequence, and a protective film layer between two adjacent adhesive layers, where the adhesive layers can adhere the electronic device body to human skin. Because the modulus of the adhesive layer at one side far away from the electronic equipment body (namely, near the human skin) is smaller than that of the adhesive layer at one side near the electronic equipment body (namely, far away from the human skin), and the protective film layer is provided with a plurality of through holes, the stress generated by the deformation of the human skin can be fully released to the low-modulus adhesive layer at one side far away from the electronic equipment body, and the purpose of modifying the stress distribution can be achieved through the through holes. Therefore, the stress borne by the electronic equipment body is smaller and more uniform, and the working stability of the electronic equipment body is better.
The terminology used in the description of the embodiments of the disclosure is for the purpose of describing the embodiments of the disclosure only and is not intended to be limiting of the disclosure. Unless defined otherwise, technical or scientific terms used in the embodiments of the present disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present disclosure belongs.
For example, the use of "first," "second," or "third," and the like, in embodiments of the present disclosure, does not denote any order, quantity, or importance, but rather is used to distinguish one element from another.
Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.
The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items.
"upper", "lower", "left" or "right" etc. are only used to indicate relative positional relationships, which may also be changed accordingly when the absolute position of the object to be described is changed.
"and/or" means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
The foregoing description of the preferred embodiments of the present disclosure is provided for the purpose of illustration only, and is not intended to limit the disclosure to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and principles of the disclosure.
Claims (8)
1. An electronic skin, the electronic skin comprising:
an electronic device body (01);
the electronic equipment comprises a plurality of layers of adhesive layers (02) which are arranged on one side of the electronic equipment body (01) and are sequentially laminated, wherein the moduli of at least two layers of adhesive layers (02) are different, and the modulus of the adhesive layer (02) on the side far away from the electronic equipment body (01) is smaller than the modulus of the adhesive layer (02) on the side close to the electronic equipment body (01);
and a protective film layer (03) located between at least two adjacent adhesive layers (02), the protective film layer (03) having a plurality of first through holes (K1);
the electronic skin further comprises: a water-blocking layer (04) located between the protective film layer (03) and the adhesive layer (02);
the waterproof layer (04) between the protective film layer (03) and the adhesive layer (02) at the side far away from the electronic equipment body (01) is provided with a plurality of second through holes (K2);
the orthographic projection of the second through holes (K2) on the electronic equipment body (01) is overlapped with the orthographic projection of the first through holes (K1) on the electronic equipment body (01).
2. The electronic skin of claim 1, wherein the electronic skin comprises: two adhesive layers (02).
3. The electronic skin according to claim 2, characterized in that the modulus of the adhesive layer (02) of the two adhesive layers (02) on the side close to the electronic device body (01) is at 10 8 -10 11 The modulus of the adhesive layer (02) at the side far away from the electronic equipment body (01) is positioned at 10 3 -10 6 Between the handkerchiefs.
4. An electronic skin according to any one of claims 1 to 3, characterized in that the opening of the first through hole (K1) and the opening of the second through hole (K2) each have at least one rounded corner.
5. An electronic skin according to any one of claims 1 to 3, characterized in that the material of the water-resistant layer (04) comprises: silicon nitride material or silicon oxide material.
6. An electronic skin according to any one of claims 1 to 3, characterized in that the material of the protective film layer (03) comprises: polyethylene terephthalate PET material.
7. An electronic skin according to any one of claims 1 to 3, characterized in that the material of the adhesive layer (02) comprises: a pressure sensitive adhesive material.
8. An electronic skin according to any one of claims 1 to 3, characterized in that the electronic device body (01) comprises: a stretchable display or a stretchable sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210291132.9A CN114464096B (en) | 2022-03-23 | 2022-03-23 | electronic skin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210291132.9A CN114464096B (en) | 2022-03-23 | 2022-03-23 | electronic skin |
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| Publication Number | Publication Date |
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| CN114464096A CN114464096A (en) | 2022-05-10 |
| CN114464096B true CN114464096B (en) | 2023-11-24 |
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| CN202210291132.9A Active CN114464096B (en) | 2022-03-23 | 2022-03-23 | electronic skin |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068895A (en) * | 2016-12-28 | 2017-08-18 | 上海天马微电子有限公司 | A kind of display panel and its display |
| WO2018119193A1 (en) * | 2016-12-21 | 2018-06-28 | Mc10, Inc. | Buffered adhesive structures for wearable patches |
| CN110666841A (en) * | 2019-10-28 | 2020-01-10 | 上海幂方电子科技有限公司 | Body surface control device |
| CN114171651A (en) * | 2021-12-03 | 2022-03-11 | 北京翌光医疗科技研究院有限公司 | Stretchable light-emitting device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10441185B2 (en) * | 2009-12-16 | 2019-10-15 | The Board Of Trustees Of The University Of Illinois | Flexible and stretchable electronic systems for epidermal electronics |
| US11109796B2 (en) * | 2018-12-18 | 2021-09-07 | Amorepacific Corporation | Electronic device which can be adhered to skin and method for manufacturing the same |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018119193A1 (en) * | 2016-12-21 | 2018-06-28 | Mc10, Inc. | Buffered adhesive structures for wearable patches |
| CN107068895A (en) * | 2016-12-28 | 2017-08-18 | 上海天马微电子有限公司 | A kind of display panel and its display |
| CN110666841A (en) * | 2019-10-28 | 2020-01-10 | 上海幂方电子科技有限公司 | Body surface control device |
| CN114171651A (en) * | 2021-12-03 | 2022-03-11 | 北京翌光医疗科技研究院有限公司 | Stretchable light-emitting device |
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| CN114464096A (en) | 2022-05-10 |
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