A mesh phototherapy device and its preparation method

Abstract

The present invention discloses a mesh phototherapy device and a preparation method thereof. The mesh phototherapy device includes: a phototherapy luminescent layer, including a plurality of light strips extending along a first direction; the plurality of light strips are arranged in sequence and spaced apart along a second direction; the phototherapy luminescent layer is used to provide therapeutic light; a sensor layer, including a plurality of strip sensors extending along the second direction; the plurality of strip sensors are arranged in sequence and spaced apart along the first direction; wherein the phototherapy luminescent layer and the sensor layer together form a mesh structure, and the phototherapy luminescent layer and the sensor layer are electrically insulated; a protective layer is coated on the exposed surfaces of the light strips and the exposed surfaces of the strip sensors, and is used to protect the light strips and the strip sensors. The phototherapy luminescent layer and the sensor layer form a mesh structure, so that the device has good bending performance while improving the air permeability of the phototherapy device, thereby ensuring the therapeutic effect of the device.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of phototherapy technology, and in particular to a mesh phototherapy device and a preparation method thereof. Background Art

[0002] OLED (Organic Light-Emitting Diode) has attracted much attention due to its good light uniformity, light weight, bendability and stretchability, especially in recent years, its application in phototherapy has become more and more widespread.

[0003] With the application of OLED phototherapy devices in various parts of the human body, people's requirements for the bendability and breathability of OLED phototherapy devices are gradually increasing. However, OLED phototherapy devices with monitoring functions have membrane structures such as sensors, which leads to poor breathability of the OLED screen, and then the breathability of the entire phototherapy device decreases. During the use of OLED phototherapy devices, the skin will become difficult to breathe, and long-term airtightness will cause bacteria to grow, thereby leading to inflammation. On the other hand, due to the different shapes of lesions in different people, how to further improve the bendability of OLED phototherapy devices is also a problem that needs to be solved urgently. Summary of the Invention

[0004] The embodiment of the present invention provides a mesh phototherapy device and a preparation method thereof, so as to improve the air permeability and bendability of the device and ensure the therapeutic effect of the device.

[0005] According to one aspect of the present invention, there is provided a mesh phototherapy device comprising:

[0006] a light therapy luminescent layer comprising a plurality of light emitting strips extending along the first direction; the plurality of light emitting strips being sequentially spaced apart along the second direction; the light therapy luminescent layer being configured to provide therapeutic light; the first direction and the second direction intersecting each other;

[0007] a sensor layer, the sensor layer comprising a plurality of strip sensors extending along the second direction; the plurality of strip sensors being sequentially spaced apart along the first direction; wherein the light therapy luminescent layer and the sensor layer together form a mesh structure, and the light therapy luminescent layer and the sensor layer are electrically insulated;

[0008] A protective layer is coated on the exposed surface of the light-emitting bar and the exposed surface of the strip-shaped sensor, and is used to protect the light-emitting bar and the strip-shaped sensor.

[0009] Optionally, the light-emitting strips in the light-emitting layer are arranged in the same layer; the strip sensors in the sensor layer are arranged in the same layer; the strip sensors in the sensor layer are located on the same side of the light-emitting strips in the phototherapy light-emitting layer, and the phototherapy light-emitting layer is also used as a supporting layer for the mesh phototherapy device.

[0010] Optionally, strip sensors are provided on both sides of at least some of the light strips, and light strips are provided on both sides of at least some of the strip sensors; the phototherapy light-emitting layer and the sensor layer are interwoven with each other.

[0011] Optionally, the light-emitting strips and the strip-shaped sensors are alternately arranged in sequence.

[0012] Optionally, the strip sensor includes a temperature sensor or a pressure sensor;

[0013] Alternatively, the strip sensor includes a temperature sensor and a pressure sensor, and there are multiple temperature sensors and multiple pressure sensors; the temperature sensors and the pressure sensors are arranged alternately in sequence.

[0014] Optionally, the protective layer includes a first protective sublayer and a second protective sublayer; relative to the first protective sublayer, the second protective sublayer is closer to the internal strip sensor and light strip; the second protective sublayer is used to block water and oxygen; the first protective sublayer is used to prevent wear of the second protective sublayer.

[0015] Optionally, the material of the pressure sensor includes carbon nanotubes and polylactic acid; the material of the temperature sensor includes 1-butyl-3-methylimidazolium chloride and acrylic acid;

[0016] The material of the first protective sublayer includes parylene;

[0017] The material of the second protective sublayer includes at least one of aluminum oxide, silicon oxide, titanium oxide and zirconium oxide.

[0018] Optionally, the width of the light strips ranges from 1 mm to 1 cm; the width of the interval between two adjacent light strips ranges from 1 mm to 1 cm;

[0019] The width of the strip sensors ranges from 1 mm to 1 cm; the width of the interval between two adjacent strip sensors ranges from 1 mm to 1 cm;

[0020] The pore area range of the network structure includes 1mm 2 ~1cm 2 .

[0021] Optionally, each of the light strips includes:

[0022] substrate;

[0023] a first electrode layer, the first electrode layer being located on a side of the substrate away from the base material layer; the first electrode layer comprising a plurality of first electrodes, the first electrodes being sequentially spaced and arranged along an extending direction of the light-emitting strip;

[0024] an organic light-emitting material layer, wherein the organic light-emitting material layer is located on a side of the first electrode layer away from the substrate;

[0025] a second electrode layer, the second electrode layer being located on a side of the organic light-emitting material layer away from the substrate; the second electrode layer comprising a plurality of second electrodes, the second electrodes being arranged in a one-to-one correspondence with the first electrodes;

[0026] An encapsulation layer is located on a side of the second electrode layer away from the substrate and on a sidewall of the light-emitting bar; the material of the encapsulation layer has insulating properties.

[0027] According to another aspect of the present invention, a method for preparing a mesh phototherapy device is provided, which is used to form the mesh phototherapy device according to any embodiment of the present invention, comprising:

[0028] A 3D-printed phototherapy luminescent layer; the phototherapy luminescent layer comprises a plurality of luminescent strips extending along the first direction; the plurality of luminescent strips are sequentially spaced apart along the second direction; the phototherapy luminescent layer is configured to provide therapeutic light; the first direction and the second direction intersect with each other;

[0029] A 3D-printed sensor layer; the sensor layer includes a plurality of strip sensors extending along the second direction; the plurality of strip sensors are sequentially spaced apart along the first direction; wherein the light therapy luminescent layer and the sensor layer together form a mesh structure, the light therapy luminescent layer and the sensor layer are electrically insulated; the strip sensors include at least one of a temperature sensor and a pressure sensor;

[0030] A protective layer is formed; the protective layer is coated on the exposed surface of the light-emitting bar and the exposed surface of the strip sensor, and is used to protect the light-emitting bar and the strip sensor.

[0031] The technical solution provided by the embodiment of the present invention is as follows: the phototherapy luminous layer is arranged into a plurality of light-emitting strips extending along the first direction; the plurality of light-emitting strips are arranged in sequence and at intervals along the second direction; the first direction and the second direction intersect with each other; the sensor layer is arranged to include a plurality of strip sensors extending along the second direction; and the plurality of strip sensors are arranged in sequence and at intervals along the first direction; so that the phototherapy luminous layer and the sensor layer can form a mesh structure. The mesh phototherapy device described in the present invention is not only simple in structure, but also can improve the air permeability of the phototherapy device while having good bending performance, thereby ensuring the therapeutic effect of the device and further improving the applicability of the phototherapy device.

[0032] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 is a schematic structural diagram of a mesh phototherapy device provided by an embodiment of the present invention;

[0035] Figure 2 yes Figure 1 A cross-sectional view of the structure shown along line AA1;

[0036] Figure 3 yes Figure 1 A cross-sectional view of the structure shown along line BB1;

[0037] Figure 4 yes Figure 1 The cross-section of the structure shown along line CC1;

[0038] Figure 5 is a schematic structural diagram of another mesh phototherapy device provided by an embodiment of the present invention;

[0039] Figure 6 This is an exploded view of a phototherapy luminescent layer provided by an embodiment of the present invention;

[0040] Figure 7 This is a flow chart of a method for preparing a mesh phototherapy device provided by an embodiment of the present invention;

[0041] Figure 8 This is a schematic structural diagram of an extrusion printing method provided by an embodiment of the present invention;

[0042] Figure 9 It is a structural schematic diagram of an inkjet printing preparation provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0044] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0045] An embodiment of the present invention provides a mesh phototherapy device, Figure 1 This is a schematic diagram of the structure of a mesh phototherapy device provided by an embodiment of the present invention. It should be noted that: Figure 1 The positional relationship between the light therapy luminescent layer 10 and the sensor layer 20 is only shown for example; Figure 2 yes Figure 1 The cross-section of the structure shown along line AA1, Figure 3 yes Figure 1 A cross-sectional view of the structure shown along line BB1; Figure 4 yes Figure 1 Cross-section of the structure shown along line CC1; Figures 1 to 4 , the mesh light therapy device includes:

[0046] The light-emitting layer 10 includes a plurality of light-emitting strips 11 extending along a first direction X. The plurality of light-emitting strips 11 are sequentially spaced apart along a second direction Y. The light-emitting layer 10 is configured to provide therapeutic light. The first direction X and the second direction Y intersect with each other.

[0047] The sensor layer 20 includes a plurality of strip sensors 21 extending along the second direction Y. The plurality of strip sensors 21 are sequentially spaced apart along the first direction X. The light therapy luminescent layer 10 and the sensor layer 20 together form a mesh structure. The light therapy luminescent layer 10 and the sensor layer 20 are electrically insulated from each other. The strip sensors 21 include at least one of a temperature sensor 211 and a pressure sensor 212.

[0048] The protective layer 30 is coated on the exposed surface of the light bar 11 and the exposed surface of the strip sensor 21 to protect the light bar 11 and the strip sensor 21 .

[0049] Specifically, the phototherapy light-emitting layer 10 includes a plurality of light-emitting strips 11 extending along a first direction X, and the plurality of light-emitting strips 11 are sequentially spaced apart along a second direction Y; it can be understood that the phototherapy light-emitting layer 10 is configured from a whole film layer in the prior art to a strip structure arranged at intervals, and the spacing between two adjacent light-emitting strips 11 is greater than zero. Each light-emitting strip 11 includes a plurality of light-emitting units, and when the light-emitting units are illuminated, the phototherapy light-emitting layer 10 provides therapeutic light. The sensor layer 20 includes a plurality of strip sensors 21 extending along the second direction Y, and the plurality of strip sensors 21 are sequentially spaced apart along a first direction X; it can be understood that the sensor layer 20 is configured from a whole film layer in the prior art to a strip structure arranged at intervals, and the spacing between two adjacent strip sensors 21 is greater than zero.

[0050] Because the light strips 11 extend along the first direction X, and the strip sensors 21 extend along the second direction Y, and the first and second directions X and Y intersect, the light strips 11 and strip sensors 21 intersect in their extension directions. Multiple light strips 11 are sequentially spaced along the second direction Y, and multiple strip sensors 21 are sequentially spaced along the first direction X, resulting in the phototherapy light-emitting layer 10 and the sensor layer 20 forming a porous mesh structure. When the first and second directions X and Y are not perpendicular to each other, the mesh structure's pores are flat quadrilaterals; when they are perpendicular to each other, the mesh structure's pores are rectangular. Figure 1 As an example, the first direction X and the second direction Y are shown perpendicular to each other. The light-emitting layer 10 and the sensor layer 20 form a mesh structure. The mesh structure has multiple pores, allowing the skin to come into contact with the external environment and increasing the breathability of the mesh light therapy device. Furthermore, the mesh structure can relieve stress generated when the light therapy device is bent, improving its flexibility.

[0051] The strip sensors 21 include at least one of a temperature sensor 211 and a pressure sensor 212. All of the strip sensors 211 can be configured as temperature sensors; or all of the strip sensors 212 can be configured as pressure sensors; or some of the strip sensors 211 can be configured as temperature sensors 211, and some of the strip sensors 212 can be configured as pressure sensors 212. If some of the strip sensors 211 are configured as temperature sensors 211 and some of the strip sensors 212 are configured as pressure sensors 212, all of the temperature sensors 211 can be concentrated in one area, and all of the temperature sensors 211 can be concentrated in another area; alternatively, the temperature sensors 211 and the pressure sensors 212 can be arranged alternately to improve the uniformity of pressure detection and temperature detection across the entire phototherapy device.

[0052] The strip sensor 21 can be prepared and printed by digital light processing (DLP) 3D printing. The material of the pressure sensor 212 can be a conductive polymer composite of carbon nanotubes (Multi-Walled Carbon Nanotube, MWCNT) and polylactic acid (Polylactic Acid, PLA), and the material of the temperature sensor 211 is a mixture of 1-butyl-3-methylimidazolium chloride and acrylic acid. The working principle of the pressure sensor 212 is that the external force (pressure) causes the pressure sensor 212 sheet to deform and produce a piezoelectric impedance effect, thereby converting the impedance change into an electrical signal, and the pressure applied can be determined by detecting the electrical signal. The temperature sensor 211 can convert the change in temperature into the change in the electrical signal, and the temperature can be detected by detecting the electrical signal.

[0053] The protective layer 30 is coated on the exposed surfaces of the light bar 11 and the exposed surfaces of the strip sensor 21 to protect them. The light therapy luminescent layer 10 and the sensor layer 20 can be formed by 3D printing. After the light therapy luminescent layer 10 and the sensor layer 20 form a mesh structure, the protective layer 30 can be deposited on the exposed surfaces of the light bar 11 and the exposed surfaces of the strip sensor 21.

[0054] The mesh phototherapy device provided by an embodiment of the present invention is configured such that a phototherapy luminescent layer is configured to be a plurality of light strips extending along a first direction; the plurality of light strips are arranged in sequence and at intervals along a second direction; the first direction and the second direction intersect with each other; a sensor layer is configured to include a plurality of strip sensors extending along the second direction; and the plurality of strip sensors are arranged in sequence and at intervals along the first direction; so that the phototherapy luminescent layer and the sensor layer can form a mesh structure, thereby improving the air permeability of the phototherapy device while having good bending performance, thereby ensuring the therapeutic effect of the device.

[0055] In one embodiment of the present invention, reference Figure 1 The light strips 11 in the phototherapy light-emitting layer 10 are arranged on the same layer; the strip sensors 21 in the sensor layer 20 are arranged on the same layer; the strip sensors in the sensor layer 20 are located on the same side of the light strips 11 in the phototherapy light-emitting layer 10, and the phototherapy light-emitting layer 10 is also used as a supporting layer for the mesh phototherapy device.

[0056] It can be understood that, first, a plurality of light strips 11 extending along the first direction X and arranged along the second direction Y in the phototherapy light-emitting layer 10 are 3D printed; the phototherapy light-emitting layer 10 is used as a supporting structure, and then a plurality of strip sensors 21 extending along the second direction Y and arranged along the first direction X are printed on one side of the phototherapy light-emitting layer 10 to form a sensor layer 20. It should be noted that the phototherapy light-emitting layer 10 and the sensor layer 20 are electrically insulated, that is, the light strips 11 and the strip sensors 21 are electrically insulated to prevent mutual interference in operation. The surface film layer in the light strip 11 that contacts the strip sensor 21 has electrical insulation properties and can serve as an isolation layer to isolate the electrical connection between the light strip 11 and the strip sensor 21. Reusing the phototherapy light-emitting layer 10 as a supporting layer can also reduce the thickness and cost of the phototherapy device.

[0057] In another embodiment of the present invention, reference Figure 5 At least part of the light strips 11 are provided with strip sensors 21 on both sides, and at least part of the strip sensors 21 are provided with light strips 11 on both sides; the phototherapy light-emitting layer 10 and the sensor layer 20 are interwoven with each other.

[0058] It can be understood that strip sensors 21 are provided on both sides of at least part of the light strips 11, and light strips 11 are provided on both sides of at least part of the strip sensors 21, so that the phototherapy light-emitting layer 10 and the sensor layer 20 can be intertwined with each other, reducing the risk of the entire layer between the phototherapy light-emitting layer 10 and the sensor layer 20 falling off, thereby improving the firmness of the phototherapy device.

[0059] The light strips 11 in the light therapy light-emitting layer 10 and the strip sensors 21 in the sensor layer 20 can be printed alternately during preparation. For example, one, two, or more light strips 11 are first printed, and then one, two, or more strip sensors 21 are printed on the formed light strips 11; then, one, two, or more light strips 11 are printed in the arrangement direction of the light strips 11; and on the printed light strips 11, one, two, or more strip sensors 21 are printed along the arrangement direction of the strip sensors 21; and so on, until all the light strips 11 and all the strip sensors 21 are prepared. The prepared light therapy light-emitting layer 10 and the sensor layer 20 can be interwoven with each other to improve the firmness of the light therapy device.

[0060] Figure 5 As an example, the light strips 11 and the strip sensors 21 are alternately arranged. Specifically, during the preparation of the light strips 11 and the strip sensors 21, a single light strip 11 is first printed, followed by a strip sensor 21 printed on the formed light strip 11. Another light strip 11 is then printed along the arrangement direction of the light strips 11. On top of the printed light strip 11, another strip sensor 21 is printed along the arrangement direction of the strip sensors 21. This process is repeated until all light strips 11 and all strip sensors 21 are completed. This improves the degree of interweaving between the therapeutic light-emitting layer and the sensor layer 20, further enhancing the robustness of the phototherapy device.

[0061] In one embodiment of the present invention, referring to 1~ Figure 4 , the luminescent material in the luminescent strip 11 includes an organic luminescent material;

[0062] The protective layer 30 includes a first protective sublayer 31 and a second protective sublayer 32 ; relative to the first protective sublayer 31 , the second protective sublayer 32 is closer to the internal strip sensor 21 and the light strip 11 ; the second protective sublayer 32 is used to block water and oxygen; the first protective sublayer 31 is used to prevent the second protective sublayer 32 from being worn.

[0063] It can be understood that since organic luminescent materials are easily corroded by water vapor and oxygen in the external environment, resulting in luminescence failure, a second protective sublayer 32 can be provided on the surface of the light strip 11 as a water and oxygen barrier to prevent water and oxygen from damaging the organic luminescent materials. Similarly, a water and oxygen barrier (second protective sublayer 32) can be provided on the surface of the strip sensor 21 to prevent water and oxygen from affecting the material of the strip sensor 21, thereby preventing the accuracy of the data detected by the strip sensor 21 from being affected.

[0064] A second protective sublayer 32 can be deposited on the surface of the phototherapy luminescent layer 10 using atomic layer deposition (ALD). The material of the second protective sublayer 32 can be an oxide such as aluminum oxide, silicon oxide, titanium oxide, or zirconium oxide. The thickness of the second protective sublayer 32 can range from 10 nm to 100 nm to prevent the second protective sublayer 32 from being too thin, which would affect the water and oxygen barrier properties; and from being too thick, which would cause the water and oxygen barrier layer to crack due to excessive stress.

[0065] Providing a first protective sublayer 31 on the surface of the second protective sublayer 32 can protect the entire device and prevent the second protective sublayer 32 from being worn. Optionally, a layer of parylene can be deposited on the surface of the second protective sublayer 32 as the first protective sublayer 31 using chemical vapor deposition (CVD) equipment or molecular layer deposition (MLD). Parylene, also known as poly-para-xylylene, is a high molecular polymer with many excellent functional features. For example, the thickness and uniformity of the deposited film can be precisely controlled, it is acid and alkali resistant, has excellent dielectric properties, and is colorless and highly transparent. It is widely used in electrical isolation, moisture-proof protection of sensors or medical instruments, and corrosion protection of metal coatings. If the deposited parylene is too thin, the protective effect of the first protective sublayer 31 is affected. If the deposited parylene is too thick, the bending performance and air permeability of the device are affected. The present invention sets the thickness of the parylene deposited within a range of 1μm to 20μm, ensuring excellent protection while also preventing any impact on the device's bending and breathability. Furthermore, parylene exhibits excellent biocompatibility and does not damage the skin it comes into contact with.

[0066] In one embodiment of the present invention, the light therapy luminous layer 10 includes a plurality of light emitting strips 11, Figure 6 , the exemplary light therapy light emitting layer 10 includes 8 light emitting strips 11, each light emitting strip 11 includes:

[0067] substrate 8;

[0068] A first electrode layer 1, which is located on a side of the substrate 1 away from the base material layer; the first electrode layer 1 includes a plurality of first electrodes 111, which are arranged in sequence along the direction in which the light-emitting bar 11 extends;

[0069] an organic light-emitting material layer 3, the organic light-emitting material layer 3 being located on a side of the first electrode layer 1 away from the substrate 8;

[0070] A second electrode layer 5, which is located on a side of the organic light-emitting material layer 3 away from the substrate 8; the second electrode layer 5 includes a plurality of second electrodes 555, and the second electrodes 555 are arranged in a one-to-one correspondence with the first electrodes 111;

[0071] The encapsulation layer 7 is located on a side of the second electrode layer 5 away from the substrate 8 and on a sidewall of the light-emitting strip 11 . The material of the encapsulation layer 7 has insulating properties to achieve electrical insulation from the strip-shaped sensor.

[0072] It can be understood that an OLED is a photoelectric device that emits light through carrier injection and recombination. The specific process is that electrons are injected through the metal cathode, holes are injected through the metal anode, and the electrons and holes recombine in the light-emitting material layer 3 to form excitons, which then de-excite to emit light. If the first electrode layer 1 is the anode layer, the second electrode layer 5 is the cathode layer; if the first electrode layer 1 is the cathode layer, the second electrode layer 5 is the anode layer. The first electrode layer 1 includes a plurality of first electrodes 111, which are arranged in sequence along the direction in which the light-emitting bar 11 extends. The second electrode layer 5 includes a plurality of second electrodes 555, which are arranged in a one-to-one correspondence with the first electrodes 111. Each first electrode 111 and its corresponding second electrode 555, as well as the organic light-emitting material layer 3 between the first electrode 111 and the second electrode 555, can constitute a light-emitting unit.

[0073] Taking the first electrode layer 1 as an anode layer and the second electrode layer 5 as a cathode layer as an example, a hole transport layer 2 may be included between the anode and the organic light-emitting material layer 3, and an electron transport layer 4 may be included between the cathode and the organic light-emitting material layer 3. Electrons are injected through the metal cathode and transported to the organic light-emitting material layer 3 via the electron transport layer 4. Holes are injected through the metal anode and transported to the organic light-emitting material layer 3 via the hole transport layer 2.

[0074] In one embodiment of the present invention, reference Figure 6 In the extension direction of the light-emitting bar 11, the first electrodes 111 located in the same light-emitting bar 11 are sequentially connected in series; the first electrodes 111 in each light-emitting bar 11 are sequentially connected in series and then connected to a corresponding first external electrode 101; in the extension direction of the light-emitting bar 11, the second electrodes 555 located in the same light-emitting bar 11 are sequentially connected in series; the second electrodes 555 in each light-emitting bar 11 are sequentially connected in series and then connected to a corresponding second external electrode 102.

[0075] It can be understood that the first electrodes 111 within the same light-emitting bar 41 are connected in series. Each first electrode 111 at the leading or trailing end is connected to a corresponding first external electrode 101. The first external electrode 101 is configured to receive a voltage signal from the first power output terminal and transmit it to each first electrode 111. The first electrodes 111 within each light-emitting bar 41 are connected in series, each corresponding to a first external electrode 101. Different first external electrodes 101 are connected to different first power output terminals. Different first power output terminals can output the same current signal or different current signals.

[0076] The second electrodes 555 within the same light-emitting bar 41 are connected in series. Each first electrode 555 at the leading or trailing end is connected to a corresponding second external electrode 102. This second external electrode 102 receives the voltage signal from the second power supply output terminal and transmits it to each second electrode 555. The second electrodes 555 within each light-emitting bar 41 are connected in series, each corresponding to a second external electrode 102. Different second external electrodes 102 are connected to different first power supply output terminals. Different first power supply output terminals can output the same current signal or different current signals.

[0077] The connecting wires between the first electrodes 111 can be arranged in the same layer as the first electrodes 111. The connecting wires between the second electrodes 555 can be arranged in a different layer than the second electrodes 555, for example. Figure 6 As shown, after the second electrode layer 5 is prepared, a layer of Ag paste is printed to form a plurality of silver traces 6 extending along the first direction X. The plurality of silver traces 6 are arranged along the second direction. Each silver trace 6 is used to connect in series a row of second electrodes 555 arranged along the first direction. One end of the silver trace 6 is connected to the second external electrode 102, thereby inputting a voltage signal to the second electrode 555.

[0078] The direction in which the first electrodes 111 are connected in series is parallel to the direction in which the second electrodes 555 are connected in series, thereby enabling synchronous control of the light-emitting units in the same light-emitting bar 11. If all first external electrodes 101 are connected to the same first power output terminal, and all second external electrodes 102 are connected to the same second power output terminal, simultaneous control of all light-emitting bars 11 can be achieved, thereby simplifying the control of turning the light-emitting units in the phototherapy device on and off.

[0079] In other embodiments, the first electrodes 111 in the same light-emitting bar 11 may also be connected in parallel, where the first electrodes 111 in a light-emitting bar 11 are sequentially connected in parallel and then connected to a corresponding first external electrode; the second electrodes 555 in the same light-emitting bar 11 may also be connected in parallel, where the second electrodes 555 in each light-emitting bar 11 are sequentially connected in parallel and then connected to a corresponding second external electrode. The details are not repeated here.

[0080] In other embodiments, in the arrangement direction of the plurality of light-emitting strips 11, the second electrodes in two adjacent light-emitting strips 11 are electrically connected; the second electrodes of all the light-emitting strips are sequentially connected in parallel in the arrangement direction of the light-emitting strips and then correspondingly connected to a second external electrode; different second external electrodes are connected to different second power supply output terminals.

[0081] Figure 6In the figure, each light strip 11 is exemplarily shown to include one column of light emitting units. In some embodiments of the present invention, each light strip 11 may include two columns, three columns, or other numbers of light emitting units, which may be configured according to actual needs.

[0082] In one embodiment of the present invention, reference Figure 1 The width range of the light strip 11 includes 1mm~1cm; the width range of the interval between two adjacent light strips 11 includes 1mm~1cm, so as to avoid the width of the light strip 11 being too narrow and the interval between two adjacent light strips 11 being too large, which affects the support of the phototherapy light-emitting layer 10; and avoid the width of the light strip 11 being too wide and the interval between two adjacent light strips 11 being too small, which affects the bendability and air permeability of the phototherapy light-emitting layer 10.

[0083] The width of the strip sensor 21 ranges from 1 mm to 1 cm; the width of the interval between two adjacent strip sensors 21 ranges from 1 mm to 1 cm, so as to avoid the strip sensor 21 being too narrow and the interval between two adjacent strip sensors 21 being too large, thereby affecting the accuracy of the sensor in monitoring temperature and / or pressure; and to avoid the strip sensor 21 being too wide and the interval between two adjacent strip sensors 21 being too small, thereby affecting the bendability and air permeability of the sensor layer 20.

[0084] The pore area of ​​the mesh structure ranges from 1mm 2 ~1cm 2 The larger the pores, the better the bending and breathability.

[0085] The embodiment of the present invention further provides a method for preparing a mesh phototherapy device, which is used to form the mesh phototherapy device described in any of the above embodiments. Figure 7 This is a flow chart of a method for preparing a mesh phototherapy device provided by an embodiment of the present invention, with reference to Figure 7 , a method for preparing a mesh phototherapy device comprises:

[0086] S110, 3D printing a phototherapy luminous layer; the phototherapy luminous layer includes a plurality of luminous strips extending along a first direction; the plurality of luminous strips are arranged in sequence and spaced apart along a second direction; the phototherapy luminous layer is used to provide therapeutic light.

[0087] S120, 3D printed sensor layer; the sensor layer includes a plurality of strip sensors extending along the second direction; the plurality of strip sensors are arranged in sequence along the first direction; wherein, the phototherapy luminous layer and the sensor layer together form a mesh structure, and the phototherapy luminous layer and the sensor layer are electrically insulated; the strip sensors include at least one of a temperature sensor and a pressure sensor.

[0088] S130 forms a protective layer; the protective layer covers the exposed surface of the light-emitting bar and the exposed surface of the strip-shaped sensor, and is used to protect the light-emitting bar and the strip-shaped sensor.

[0089] Specifically, the light strips in the light therapy light-emitting layer can be prepared by printing. Figure 8 1 is a schematic structural diagram of an extrusion printing method provided by an embodiment of the present invention, wherein the extrusion printing method controls the printing nozzle 200 by driving pressure to print; Figure 9 Schematic diagram of the structure of an inkjet printing preparation provided by an embodiment of the present invention, the inkjet printing preparation is performed by inkjet printing through a gas-controlled spray nozzle 100; Figure 8 and Figure 9 , combined with Figure 6 The preparation method of the light strip includes: preparing an organic layer as a substrate 8 by extrusion printing, the material of which is PDMS or organic silicone, and the thickness range can be 5 to 50 μm; printing a first electrode layer 1 on the substrate by an extrusion printing device, the first electrode layer 1 can be used as an anode layer, and the material of which is metal nanowires such as Ag nanowires; printing a hole transport layer 2 by an extrusion printing device, the material of the hole transport layer 2 can be PEDOT:PSS, which is an aqueous solution of a high molecular polymer with high conductivity. Different aqueous solutions with different conductivity can be obtained according to different formulations; printing an organic light-emitting material layer 3 on the hole transport layer 2 by inkjet printing, the organic light-emitting material can be a polymer [ [2-[(3,7-dimethyloctyl)oxy]-5-methoxy-1,4-phenyl]-1,2-ethylenediyl] (MDMO-PPV); an electron transport layer 4 is printed on the organic light-emitting material layer 3 by an extrusion printing device, and its material can be silicone plastic (Silicone); a second electrode layer 5 as a cathode layer is printed on the electron transport layer 4 by an extrusion printing device, and its material can be gallium indium eutectic (eGaIn); a layer of Ag paste is printed by an extrusion printing device to form a silver trace 6 to lead the cathode out and electrically connect it to an external power supply; an organic layer is printed by an extrusion printing device as an encapsulation layer 7, and its material is PDMS or organic silicone, etc.

[0090] During the preparation process, each light-emitting strip can be prepared separately, that is, after preparing one light-emitting strip, another light-emitting strip can be prepared. It is also possible to form the same film layer of all the light-emitting strips at the same time, and then form the next same film layer of all the light-emitting strips. For example, after forming the substrate of all the light-emitting strips, the first electrode layer of all the light-emitting strips is formed, and so on, until all the film layers are prepared. When the light-emitting strips in the phototherapy light-emitting layer are arranged in the same layer, the strip sensors in the sensor layer are arranged in the same layer, and the strip sensors in the sensor layer are located on the same side of the light-emitting strips in the phototherapy light-emitting layer, the light-emitting strips can be prepared in any of the above two ways. When the light-emitting strips and the strip sensors are arranged alternately in sequence, and the treatment light-emitting layer and the sensor layer are intertwined, the different light-emitting strips in the treatment light-emitting layer need to be prepared individually.

[0091] The strip sensors can be produced using digital light processing (DLP) 3D printing. The pressure sensor can be made of a conductive polymer composite of multi-walled carbon nanotubes (MWCNTs) and polylactic acid (PLA), while the temperature sensor is made of a mixture of 1-butyl-3-methylimidazolium chloride and acrylic acid.

[0092] A protective layer is applied to the exposed surfaces of the light-emitting strip and the exposed surfaces of the strip sensor to protect them. After the phototherapy luminescent layer and the sensor layer form a mesh structure, a protective layer can be deposited on the exposed surfaces of the light-emitting strip and the strip sensor. The protective layer can include a first protective sublayer and a second protective sublayer. The second protective sublayer is closer to the internal strip sensor and light-emitting strip than the first protective sublayer. The second protective sublayer is used to block water and oxygen, while the first protective sublayer is used to prevent abrasion of the second protective sublayer. The second protective sublayer can be deposited on the surface of the phototherapy luminescent layer using an ALD device to serve as a water and oxygen barrier. The second protective sublayer can be made of oxides such as aluminum oxide, silicon oxide, titanium oxide, and zirconium oxide. Its thickness can range from 10 nm to 100 nm to prevent the water and oxygen barrier from being too thin, which would affect its water and oxygen barrier performance, and from being too thick, which would cause cracking due to excessive stress. Forming the first protective sublayer on the surface of the second protective sublayer protects the entire device and prevents abrasion of the second protective sublayer. A layer of parylene as the first protective sub-layer may be deposited on the surface of the second protective sub-layer by CVD or MLD.

[0093] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A mesh phototherapy device, characterized in that: include: a light therapy luminous layer comprising a plurality of luminous strips extending along a first direction; The plurality of light-emitting strips are sequentially arranged at intervals along the second direction; The phototherapy luminescent layer is used to provide therapeutic light; the first direction and the second direction intersect each other; a sensor layer, the sensor layer comprising a plurality of strip sensors extending along the second direction; the plurality of strip sensors being sequentially spaced apart along the first direction; wherein the light therapy luminescent layer and the sensor layer together form a mesh structure, and the light therapy luminescent layer and the sensor layer are electrically insulated; a protective layer, the protective layer covering the exposed surface of the light-emitting bar and the exposed surface of the strip-shaped sensor, and used for protecting the light-emitting bar and the strip-shaped sensor; Each of the light strips comprises: substrate; a first electrode layer, the first electrode layer being located on one side of the substrate; the first electrode layer comprising a plurality of first electrodes, the first electrodes being sequentially spaced and arranged along an extending direction of the light-emitting strip; an organic light-emitting material layer, wherein the organic light-emitting material layer is located on a side of the first electrode layer away from the substrate; a second electrode layer, the second electrode layer being located on a side of the organic light-emitting material layer away from the substrate; the second electrode layer comprising a plurality of second electrodes, the second electrodes being arranged in a one-to-one correspondence with the first electrodes; An encapsulation layer is located on a side of the second electrode layer away from the substrate and on a sidewall of the light-emitting bar.

2. The mesh phototherapy device according to claim 1, characterized in that The light strips in the phototherapy light-emitting layer are arranged on the same layer; the strip sensors in the sensor layer are arranged on the same layer; the strip sensors in the sensor layer are located on the same side of the light strips in the phototherapy light-emitting layer, and the phototherapy light-emitting layer is also used as a supporting layer for the mesh phototherapy device.

3. The mesh phototherapy device according to claim 1, characterized in that At least part of the light strips are provided with strip sensors on both sides, and at least part of the strip sensors are provided with light strips on both sides; the light therapy light-emitting layer and the sensor layer are interwoven with each other.

4. The mesh phototherapy device according to claim 3, characterized in that The light-emitting strips and the strip-shaped sensors are alternately arranged in sequence.

5. The mesh phototherapy device according to claim 1, characterized in that The strip sensor includes a temperature sensor or a pressure sensor; Alternatively, the strip sensor includes a temperature sensor and a pressure sensor, and there are multiple temperature sensors and multiple pressure sensors; the temperature sensors and the pressure sensors are arranged alternately in sequence.

6. The mesh phototherapy device according to claim 1, characterized in that The protective layer includes a first protective sublayer and a second protective sublayer; relative to the first protective sublayer, the second protective sublayer is closer to the internal strip sensor and the light-emitting strip; The second protective sublayer is used to block water and oxygen; the first protective sublayer is used to prevent the second protective sublayer from being worn.

7. The mesh phototherapy device according to claim 6, characterized in that The materials of the pressure sensor include carbon nanotubes and polylactic acid; the materials of the temperature sensor include 1-butyl-3-methylimidazolium chloride and acrylic acid; The material of the first protective sublayer includes parylene; The material of the second protective sublayer includes at least one of aluminum oxide, silicon oxide, titanium oxide and zirconium oxide.

8. The mesh phototherapy device according to claim 1, characterized in that The width of the light strips ranges from 1 mm to 1 cm; the width of the interval between two adjacent light strips ranges from 1 mm to 1 cm; The width of the strip sensors ranges from 1 mm to 1 cm; the width of the interval between two adjacent strip sensors ranges from 1 mm to 1 cm; The pore area range of the network structure includes 1mm 2 ~1cm 2 .

9. A method for preparing a mesh phototherapy device, characterized in that: A mesh phototherapy device for forming any one of claims 1 to 8, comprising: A 3D-printed phototherapy luminescent layer; the phototherapy luminescent layer comprises a plurality of luminescent strips extending along the first direction; the plurality of luminescent strips are sequentially spaced apart along the second direction; the phototherapy luminescent layer is configured to provide therapeutic light; the first direction and the second direction intersect with each other; A 3D-printed sensor layer; the sensor layer includes a plurality of strip sensors extending along the second direction; the plurality of strip sensors are sequentially spaced apart along the first direction; wherein the light therapy luminescent layer and the sensor layer together form a mesh structure, the light therapy luminescent layer and the sensor layer are electrically insulated; the strip sensors include at least one of a temperature sensor and a pressure sensor; A protective layer is formed; the protective layer is coated on the exposed surface of the light-emitting bar and the exposed surface of the strip sensor, and is used to protect the light-emitting bar and the strip sensor.

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