A self-heat dissipating phototherapy panel and a self-heat dissipating phototherapy device

Abstract

The application discloses a self-heat-dissipation phototherapy panel and a self-heat-dissipation phototherapy device, wherein the self-heat-dissipation phototherapy panel comprises a phototherapy light-emitting layer and a deformation heat-dissipation layer attached to one side of the phototherapy light-emitting layer; wherein the deformation heat-dissipation layer is in a flattened shape or tightly buckles the treatment surface under a condition of being lower than a preset temperature; and the deformation heat-dissipation layer is curved and deformed in a direction away from the treatment surface under a condition of being greater than or equal to the preset temperature, so as to drive at least a partial region of the phototherapy light-emitting layer to be away from the treatment surface, and the self-heat-dissipation phototherapy device is achieved, and the comfort of a user is improved.

Description

Technical Field

[0001] The present invention relates to the field of phototherapy technology, and in particular to a self-heating phototherapy panel and a self-heating phototherapy device. Background Technology

[0002] OLED (Organic Light-Emitting Diode) has attracted much attention due to its characteristics such as good light emission uniformity, thinness, flexibility, and stretchability, and its application in phototherapy has become increasingly widespread in recent years.

[0003] However, OLEDs, as surface light sources, have poor heat dissipation performance; at the same time, because the light used in phototherapy is relatively strong, the temperature of the affected area will be high during the phototherapy process, which will seriously affect the comfort of phototherapy. Therefore, how to achieve heat dissipation of phototherapy devices has become an urgent problem to be solved by people in this field. Summary of the Invention

[0004] This invention provides a self-heating phototherapy panel and a self-heating phototherapy device to achieve self-heating of the phototherapy device and improve user comfort.

[0005] According to one aspect of the present invention, a self-heating phototherapy panel is provided, comprising:

[0006] Phototherapy luminescent layer;

[0007] A deformation heat dissipation layer is attached to one side of the phototherapy light-emitting layer;

[0008] The deformation heat dissipation layer is flattened or tightly fitted to the treatment surface when the temperature is below a preset temperature; the deformation heat dissipation layer bends and deforms away from the treatment surface when the temperature is above or equal to the preset temperature, so as to drive at least a portion of the phototherapy light-emitting layer away from the treatment surface.

[0009] Optionally, the self-heating phototherapy panel further includes:

[0010] A support substrate is located on one side of the phototherapy luminescent layer and is used to support the phototherapy luminescent layer.

[0011] An encapsulation layer is located on the side of the phototherapy luminescent layer away from the supporting substrate, and the encapsulation layer is used to prevent the phototherapy luminescent layer from contacting the external environment.

[0012] Optionally, the deformation heat dissipation layer can be reused as the support substrate and / or the encapsulation layer.

[0013] Optionally, the material of the deformation heat dissipation layer includes shape memory alloy;

[0014] The deformation heat dissipation layer is located on the backlight side or the light-emitting side away from the phototherapy light-emitting layer; wherein the backlight side and the light-emitting side are located on opposite sides of the phototherapy light-emitting layer.

[0015] The deformation heat dissipation layer includes a first deformation layer and a second deformation layer stacked together; the second deformation layer is located on the side of the phototherapy light-emitting layer close to the first deformation layer.

[0016] Wherein, the material expansion ratio of the second deformation layer is greater than that of the first deformation layer, and the thickness of the first deformation layer is less than that of the second deformation layer;

[0017] Alternatively, the material expansion ratio of the first deformation layer is greater than that of the second deformation layer; the thickness of the first deformation layer is greater than that of the second deformation layer.

[0018] Optionally, the deformation layer with relatively large material expansion includes an organic polymer material layer, and the deformation layer with relatively small material expansion includes a metallic material layer;

[0019] The ratio of the material expansion ratio of the organic polymer material layer to that of the metal material layer is greater than or equal to 5; the ratio of the thickness of the organic polymer material layer to that of the metal material layer is greater than or equal to 10.

[0020] According to another aspect of the present invention, a self-heating phototherapy device is provided, comprising a self-heating phototherapy panel as described in any embodiment of the present invention, and at least two fixing structures; the at least two fixing structures are spaced apart around the edge of the self-heating phototherapy panel; the fixing structures are used to fix the self-heating phototherapy panel to a treatment surface.

[0021] Optionally, there are two fixing structures, located on opposite sides of the self-heating phototherapy panel and connected to a portion of the side of the self-heating phototherapy panel.

[0022] Optionally, there may be multiple self-heating phototherapy panels, which are connected side-by-side between the first fixing structure and the second fixing structure.

[0023] Optionally, the self-heating phototherapy device further includes a transparent mesh structure; a portion of the self-heating phototherapy panel is attached to the transparent mesh structure; and each of the fixing structures is connected to at least a portion of the edge of the transparent mesh structure.

[0024] The technical solution provided by this invention involves setting a deformation heat dissipation layer on one side of the phototherapy luminescent layer. The deformation heat dissipation layer is flattened or tightly fitted to the treatment surface when the temperature is below a preset level, allowing the phototherapy luminescent layer to perform normal phototherapy on the treatment surface. When the temperature at the treatment surface rises to the preset temperature, the deformation heat dissipation layer bends and deforms away from the treatment surface. This allows at least a portion of the phototherapy luminescent layer to move away from the treatment surface, achieving heat dissipation from the treatment surface, preventing burns to the skin, and improving the user's comfort during phototherapy.

[0025] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a cross-sectional view of the structure of a self-heating phototherapy panel provided in an embodiment of the present invention;

[0028] Figure 2 yes Figure 1 The structure shown is a cross-sectional view of a flattened shape at low temperatures.

[0029] Figure 3 yes Figure 1 The structure shown is a cross-sectional view of a tightly closed treatment surface at low temperature.

[0030] Figure 4 yes Figure 2 The diagram shows a cross-sectional view of the structure that is shaped away from the treatment surface at high temperatures.

[0031] Figure 5 yes Figure 2 The diagram shows a cross-sectional view of another structure that, at high temperatures, exhibits a shape that is far removed from the treatment surface.

[0032] Figure 6 Yes Figure 1 The diagram shows a cross-sectional view of another structure that flattens out at low temperatures.

[0033] Figure 7 yes Figure 6 The diagram shows a cross-sectional view of the structure that is shaped away from the treatment surface at high temperatures.

[0034] Figure 8 This is a cross-sectional view of the structure of a front-emitting self-heating phototherapy panel provided in an embodiment of the present invention;

[0035] Figure 9 This is a cross-sectional view of the structure of a back-emitting, self-heating phototherapy panel provided in an embodiment of the present invention;

[0036] Figure 10 This is a cross-sectional view of another self-heating phototherapy panel provided in an embodiment of the present invention;

[0037] Figure 11 This is a cross-sectional view of another self-heating phototherapy panel provided in an embodiment of the present invention;

[0038] Figure 12 This is a cross-sectional view of another self-heating phototherapy panel provided in an embodiment of the present invention;

[0039] Figure 13 This is a cross-sectional view of another self-heating phototherapy panel provided in an embodiment of the present invention;

[0040] Figure 14 This is a structural cross-sectional view of a self-heating phototherapy device provided in an embodiment of the present invention;

[0041] Figure 15 This is a cross-sectional view of another self-heating phototherapy device provided in an embodiment of the present invention;

[0042] Figure 16 This is a cross-sectional view of another self-heating phototherapy device provided in an embodiment of the present invention;

[0043] Figure 17 This is a cross-sectional view of another self-heating phototherapy device provided in an embodiment of the present invention;

[0044] Figure 18 This is a cross-sectional view of another self-heating phototherapy device provided in an embodiment of the present invention. Detailed Implementation

[0045] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0046] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0047] This invention provides a self-heating phototherapy panel. Figure 1 This is a cross-sectional view of the structure of a self-heating phototherapy panel provided in an embodiment of the present invention, for reference. Figure 1 The self-heating phototherapy panel includes:

[0048] Phototherapy luminescent layer 10;

[0049] A deformable heat dissipation layer 20 is attached to one side of the phototherapy luminescent layer 10;

[0050] The deformable heat dissipation layer 20 is flattened or tightly fitted to the treatment surface when the temperature is below the preset temperature; the deformable heat dissipation layer 20 is bent and deformed in a direction away from the treatment surface when the temperature is greater than or equal to the preset temperature, so as to drive at least a portion of the phototherapy luminescent layer 10 away from the treatment surface.

[0051] Specifically, the phototherapy luminescent layer 10 includes multiple luminescent structures. When the luminescent structures are illuminated, the phototherapy luminescent layer 10 provides therapeutic light. The luminescent structures can be arranged in an array or in a ring from the inner circle to the outer circle, depending on actual needs. This embodiment of the invention does not limit this arrangement. The luminescent structures in the phototherapy luminescent layer 10 can be controlled by regional partitions, or each luminescent structure can be controlled individually, thereby adjusting the area and shape of the illuminated area.

[0052] Each light-emitting structure includes a first electrode, a light-emitting material layer, and a second electrode stacked sequentially. The first electrode can be an anode, and the second electrode can be a cathode, or vice versa. Electrons are injected through the cathode, and holes are injected through the anode. Electrons and holes recombine in the light-emitting material layer to form excitons, which de-excite light emission. The first electrode material includes ITO and / or IZO, or a stacked structure of ITO film, Ag film, and ITO film. The second electrode includes at least one of Ag, Al, and Mg. Additionally, at least one of a hole injection layer, a hole transport layer, and an electron blocking layer can be disposed between the anode and the light-emitting material layer; at least one of an electron input layer, an electron transport layer, and a hole blocking layer can be disposed between the cathode and the light-emitting material layer.

[0053] The phototherapy luminescent layer 10 is attached to one side of the deformation heat dissipation layer 20, which can deform according to the temperature. Figure 2 yes Figure 1 The diagram shown is a cross-sectional view of the structure in a flattened shape at low temperatures. (Refer to...) Figure 1 and Figure 2 When the treatment surface 1 is a plane, the deformation heat dissipation layer 20 flattens out under conditions below the preset temperature, so that the phototherapy light-emitting layer 10 flattens out and faces the treatment surface 1, thereby performing normal phototherapy on the treatment surface 1. Figure 3 yes Figure 1 The diagram shown is a cross-sectional view of the structure at low temperature, exhibiting a tightly fitted treatment surface shape. (Refer to...) Figure 1 and Figure 3 When the treatment surface 1 is curved, the deformable heat dissipation layer 20 can be shaped to fit tightly against the treatment surface 1 at temperatures below a preset temperature, thereby increasing the effective illumination area of ​​the phototherapy luminescent layer 10 on the treatment surface 1. When the temperature at the treatment surface 1 rises to the preset temperature, the deformable heat dissipation layer 20 bends away from the treatment surface 1, thereby driving at least a portion of the phototherapy luminescent layer 10 away from the treatment surface 1, achieving heat dissipation from the treatment surface 1, preventing burns to the skin, and improving the user's comfort during phototherapy. The preset temperature can be determined according to specific circumstances; for example, the temperature at which the deformable heat dissipation layer 20 begins to deform can be 40°C, 45°C, or 50°C.

[0054] Figure 4 yes Figure 2 The diagram shows a cross-sectional view of the structure at high temperatures, where the shape is far from the treatment surface. (Refer to...) Figure 2 and Figure 4The deformation heat dissipation layer 20 can bend and deform in a direction away from the treatment surface 1, with the central region of the deformation heat dissipation layer 20 deforming away from the treatment surface 1 to form a "bowl" shape that fits over the treatment surface 1. This deformation heat dissipation layer 20 can move the central region of the phototherapy luminescent layer 10 away from the treatment surface 1, increasing the distance between the central region of the phototherapy luminescent layer 10 and the treatment surface 1. This achieves heat dissipation from the treatment surface 1, prevents high temperatures from burning the skin, and improves the user's comfort during phototherapy.

[0055] Figure 5 yes Figure 2 The diagram shows another cross-sectional view of the structure, which at high temperatures exhibits a shape far removed from the treatment surface. (See reference) Figure 2 and Figure 5 The bending deformation of the heat dissipation layer 20 away from the treatment surface 1 can also cause the edge area of ​​the heat dissipation layer 20 to curl or bend away from the treatment surface 1. This allows the heat dissipation layer 20 to pull the edge area of ​​the phototherapy light-emitting layer 10 away from the treatment surface 1, increasing the distance between the edge area of ​​the phototherapy light-emitting layer 10 and the treatment surface 1. In the curled state, the treatment surface 1 may be almost completely covered by the phototherapy light-emitting layer 10. This achieves heat dissipation from the treatment surface 1, prevents burns to the skin, and improves the user's comfort during phototherapy. In addition, by moving the edge area of ​​the phototherapy light-emitting layer 10 away from the treatment surface 1, the heat dissipation layer 20 allows the skin to come into contact with the external environment, preventing bacterial growth and inflammation caused by prolonged lack of breathability on the treatment surface 1.

[0056] The deformation heat dissipation layer 20 can be located on the backlight side of the phototherapy light-emitting layer 10. Figures 1-5 The backlight side can be understood as the side opposite to the light-emitting side of the phototherapy light-emitting layer 10. The deformation heat dissipation layer 20 being located on the backlight side of the phototherapy light-emitting layer 10 can prevent the deformation heat dissipation layer 20 from affecting the light emission of the phototherapy light-emitting layer 10. In some embodiments of the present invention, the deformation heat dissipation layer 20 may also be located on the light-emitting side of the phototherapy light-emitting layer 10. When the deformation heat dissipation layer 20 is located on the light-emitting side of the phototherapy light-emitting layer 10, the deformation heat dissipation layer 20 must be translucent. Figure 6 yes Figure 1 The diagram shows a cross-sectional view of another structure that flattens out at low temperatures. Figure 7 yes Figure 6 The diagram shows a cross-sectional view of the structure at high temperatures, where the shape is far from the treatment surface. (Refer to...) Figure 1 , Figure 6 and Figure 5The diagram illustrates, exemplarily, that when the deformable heat dissipation layer 20 is located on the light-emitting side of the phototherapy light-emitting layer 10, the self-heating phototherapy panel is flattened at low temperatures and has an edge region that is away from the treatment surface 1 at high temperatures. When the deformable heat dissipation layer 20 is located on the light-emitting side of the phototherapy light-emitting layer 10, the self-heating phototherapy panel can also be shaped to fit snugly against the treatment surface 1 at low temperatures. At high temperatures, the self-heating phototherapy panel can also move away from the treatment surface 1 from its central region.

[0057] It should be noted that when the central region of the deformable heat dissipation layer 20 deforms away from the treatment surface 1, causing the central region of the phototherapy luminescent layer 10 to move away from the treatment surface 1, the phototherapy luminescent layer 10 must be flexible and stretchable.

[0058] The self-heating phototherapy panel provided in this embodiment of the invention features a deformation heat dissipation layer on one side of the phototherapy luminescent layer. When the temperature is below a preset level, the deformation heat dissipation layer either flattens out or tightly adheres to the treatment surface, allowing the phototherapy luminescent layer to perform normal phototherapy on the treatment surface. When the temperature at the treatment surface rises to the preset temperature, the deformation heat dissipation layer bends and deforms away from the treatment surface. This allows at least a portion of the phototherapy luminescent layer to move away from the treatment surface, achieving heat dissipation from the treatment surface, preventing skin burns, and improving user comfort during phototherapy.

[0059] Optional, Figure 8 This is a cross-sectional view of the structure of a front-emitting, self-heating phototherapy panel provided in an embodiment of the present invention. Figure 9 This is a cross-sectional view of the structure of a back-emitting, self-heating phototherapy panel provided in an embodiment of the present invention, with reference to... Figure 8 and Figure 9 The self-heating phototherapy panel also includes:

[0060] A support substrate 30 is located on one side of the phototherapy luminescent layer 10 and is used to support the phototherapy luminescent layer 10.

[0061] The encapsulation layer 40 is located on the side of the phototherapy luminescent layer 10 away from the support substrate 30. The encapsulation layer 40 is used to prevent the phototherapy luminescent layer 10 from contacting the external environment.

[0062] Specifically, the support substrate 30 is a flexible substrate, and its material can be flexible materials such as PI, PET, or PEN. The support substrate 30 is located on one side of the phototherapy light-emitting layer 10, and the support substrate 30 is used to support the phototherapy light-emitting layer 10. A water and oxygen barrier layer can be provided on the surface of the support substrate 30 near the phototherapy light-emitting layer 10. Since organic light-emitting materials are easily corroded by water vapor and oxygen in the external environment, leading to light-emitting failure, a water and oxygen barrier layer can be provided on the surface of the support substrate 30 to prevent water and oxygen from entering the device from the layer where the support substrate 30 is located and corroding the organic light-emitting material. The material of the water and oxygen barrier layer can include any one or a combination of at least two of silicon nitride, silicon oxide, silicon oxynitride, epoxy resin, or polyolefin, and its preparation method can be one or a combination of atomic layer deposition (ALD), plasma enhanced chemical vapor deposition (PECVD), inkjet printing (IJP), screen printing, or sputtering.

[0063] The encapsulation layer 40 is located on the side of the phototherapy light-emitting layer 10 away from the supporting substrate 30. The encapsulation layer 40 serves to block the phototherapy light-emitting layer 10 from contact with the external environment, preventing water and oxygen from entering the device and corroding the organic light-emitting material. The encapsulation layer 40 is a thin-film encapsulation layer, including any one or at least two combinations of silicon nitride, silicon oxide, silicon oxynitride, epoxy resin, or polyolefin. Its preparation method is one or a mixture of multiple methods such as ALD, PECVD, IJP, screen printing, or sputtering. For example, the encapsulation layer 40 may include a first inorganic layer, an organic layer, and a second inorganic layer sequentially stacked.

[0064] The deformation heat dissipation layer 20 can be located between the supporting substrate 30 and the phototherapy light-emitting layer 10, or on the side of the supporting substrate 30 away from the phototherapy light-emitting layer 10, or between the encapsulation layer 40 and the phototherapy light-emitting layer 10, or on the side of the encapsulation layer 40 away from the phototherapy light-emitting layer 10. The position of the deformation heat dissipation layer 20 can be set according to actual needs. Figure 8 and Figure 9 An exemplary diagram shows the deformable heat dissipation layer 20 located on the side of the encapsulation layer 40 away from the phototherapy light-emitting layer 10. The deformable heat dissipation layer 20 can be adhered to the surface of the encapsulation layer 40 away from the phototherapy light-emitting layer 10 via an adhesive layer. The deformable heat dissipation layer 20 can further improve encapsulation performance.

[0065] Self-heating phototherapy panels can emit light from the back or the front. (Reference) Figure 8When the light emission direction of the phototherapy luminescent layer 10 is pointing towards the support substrate 30, the self-heating phototherapy panel emits light from the front. The support substrate 30 is relatively close to the treatment surface 1, and the material of the support substrate 30 is a transparent material. (Reference) Figure 9 When the light emission direction of the phototherapy light-emitting layer 10 is pointing towards the encapsulation layer 40, the self-heating phototherapy panel emits light from the back, the encapsulation layer 40 is relatively close to the treatment surface 1, and the encapsulation layer 40 is transparent.

[0066] Optional, Figure 10 This is a cross-sectional view of another self-heating phototherapy panel provided in an embodiment of the present invention. Figure 11 This is a cross-sectional view of another self-heating phototherapy panel provided in an embodiment of the present invention, for reference. Figure 10 and Figure 11 The deformation heat dissipation layer 20 can be reused as a support substrate 30 and / or an encapsulation layer 40.

[0067] For details, please refer to Figure 10 The deformation heat dissipation layer 20 being reused as the support substrate 30 can be understood as using the deformation heat dissipation layer 20 as the support substrate 30, so that the deformation heat dissipation layer 20 serves to dissipate heat while simultaneously driving at least a portion of the phototherapy light-emitting layer 10 away from the treatment surface, and also supports the phototherapy light-emitting layer 10. This eliminates the need for a flexible substrate, which in the above embodiments can be made of flexible materials such as PI, PET, or PEN, reducing the thickness of the self-heating phototherapy panel, improving its heat dissipation capacity, and lowering the cost of the device. The self-heating phototherapy panel can emit light from the front or the back. When the light emission direction of the phototherapy light-emitting layer 10 is pointing towards the support substrate 30 (which is the deformation heat dissipation layer 20), the self-heating phototherapy panel emits light from the front, and the deformation heat dissipation layer 20, serving as the support substrate 30, is relatively close to the treatment surface. When the light emission direction of the phototherapy light-emitting layer 10 is pointing towards the encapsulation layer 40, the self-heating phototherapy panel emits light from the back, and the deformation heat dissipation layer 20, serving as the support substrate 30, is relatively far from the treatment surface.

[0068] refer to Figure 11The deformation heat dissipation layer 20 being reused as a support substrate 30 can be understood as using the deformation heat dissipation layer 20 as an encapsulation layer 40. This allows the deformation heat dissipation layer 20 to both dissipate heat by moving at least a portion of the phototherapy light-emitting layer 10 away from the treatment surface and to encapsulate the phototherapy light-emitting layer 10. This eliminates the need for the thin film encapsulation layer including inorganic and organic layers as described in the above embodiments, reducing the thickness of the self-heating phototherapy panel, improving its heat dissipation capacity, and lowering the cost of the device. The self-heating phototherapy panel can be front-emitting or back-emitting. When the light emission direction of the phototherapy light-emitting layer 10 is pointing towards the encapsulation layer 40 (which is the deformation heat dissipation layer 20), the self-heating phototherapy panel emits light from the back, and the deformation heat dissipation layer 20, reused as the encapsulation layer 40, is relatively close to the treatment surface. When the light emission direction of the phototherapy light-emitting layer 10 is pointing towards the support substrate 30, the self-heating phototherapy panel emits light from the front, and the deformation heat dissipation layer 20, reused as the encapsulation layer 40, is relatively far from the treatment surface.

[0069] The deformation heat dissipation layer 20, which is reused as both the support substrate 30 and the encapsulation layer 40, can be understood as comprising two layers: one reused as the support substrate 30, and the other reused as the encapsulation layer 40 (not shown). It should be noted that the deformation heat dissipation layer 20 reused as the support substrate 30 and the deformation heat dissipation layer 20 reused as the encapsulation layer 40 deform in the same shape when the temperature of the treatment surface 1 exceeds a preset temperature.

[0070] In one embodiment of the present invention, reference is made to... Figure 1 The material of the deformation heat dissipation layer 20 includes shape memory alloy;

[0071] The deformation heat dissipation layer 20 is located on the backlight side or the light-emitting side away from the phototherapy light-emitting layer 10; wherein the backlight side and the light-emitting side are located on opposite sides of the phototherapy light-emitting layer 10.

[0072] Specifically, the material of the deformation heat dissipation layer 20 includes shape memory alloys (SMAs). Shape memory alloys are materials composed of two or more metallic elements that exhibit shape memory effect (SME) through thermoelastic and martensitic phase transformations and their inverse transformations. The deformation recovery capability of shape memory alloys is due to the thermoelastic martensitic phase transformation that occurs within the material during deformation. Shape memory alloys contain two phases: a high-temperature austenitic phase and a low-temperature martensitic phase. Depending on different thermodynamic load conditions, shape memory alloys exhibit two different properties. Among these, shape memory alloy systems include Au-Cd, Ag-Cd, Cu-Zn, Cu-Zn-Al, Cu-Zn-Sn, Cu-Zn-Si, Cu-Sn, Cu-Zn-Ga, In-Ti, Au-Cu-Zn, NiAl, Fe-Pt, Ti-Ni, Ti-Ni-Pd, Ti-Nb, U-Nb, and Fe-Mn-Si, etc. By creating a deformation memory in a shape memory alloy, when the shape memory alloy is at a corresponding temperature, the deformation heat dissipation layer 20 can undergo a process similar to... Figure 4 The "bowl-shaped" deformation shown on the treatment surface 1 can also cause the deformation heat dissipation layer 20 to undergo, as... Figure 5 The deformation shown is that the surface of the treatment 1 is raised or curled up.

[0073] By placing the shape memory alloy material deformation heat dissipation layer 20 on the backlight side of the phototherapy light-emitting layer 10, the deformation heat dissipation layer 20 can be prevented from affecting the light emission of the phototherapy light-emitting layer 10. The shape memory alloy material deformation heat dissipation layer 20 can be reused as a support substrate 30, and the self-heating phototherapy panel emits light from the back. The shape memory alloy material deformation heat dissipation layer 20 can be reused as an encapsulation layer 40 (e.g., Figure 11 At this time, the supporting substrate 30 is transparent, and the self-heating phototherapy panel emits light from the front. It should be noted that a dielectric layer is required between the deformable heat dissipation layer 20 of the metal material and the phototherapy light-emitting layer 10 to achieve electrical insulation. In addition, when the deformable heat dissipation layer 20 of the shape memory alloy material is disposed on the light-emitting side of the phototherapy light-emitting layer 10, the shape memory alloy material must be transparent.

[0074] The shape memory alloy material's deformation heat dissipation layer 20 can deform to different degrees according to different temperatures. For example, at a first preset temperature, the distance or degree of curling of the phototherapy light-emitting layer 10 away from the treatment surface 1 caused by the deformation heat dissipation layer 20 is greater than the distance or degree of curling of the phototherapy light-emitting layer 10 away from the treatment surface 1 caused by the deformation heat dissipation layer 20 at a second preset temperature, where the first preset temperature is greater than the second preset temperature. This allows the heat dissipation capacity of the deformation heat dissipation layer 20 to be adjusted according to the actual temperature of the treatment surface 1.

[0075] In another embodiment of the invention, reference is made to... Figure 12 and Figure 13 The deformation heat dissipation layer 20 includes a first deformation layer 21 and a second deformation layer 22 stacked together; the second deformation layer 22 is located on the side of the phototherapy light-emitting layer 10 close to the first deformation layer 21.

[0076] Among them, reference Figure 12 The material expansion ratio of the second deformation layer 22 is greater than that of the first deformation layer 21, and the thickness of the first deformation layer 21 is less than that of the second deformation layer 22; when the temperature of the phototherapy light-emitting layer 10 exceeds a preset value, the deformation heat dissipation layer 20 can undergo the following... Figure 5 The deformation shown.

[0077] Or, refer to Figure 13 The material expansion ratio of the first deformation layer 21 is greater than that of the second deformation layer 22; the thickness of the first deformation layer 21 is greater than that of the second deformation layer 22. When the temperature of the phototherapy light-emitting layer 10 or the treatment surface 1 exceeds a preset value, the deformation heat dissipation layer 20 can undergo the following... Figure 4 The deformation shown.

[0078] Optionally, the deformation layer with a relatively large material expansion includes an organic polymer material layer, and the deformation layer with a relatively small material expansion includes a metallic material layer.

[0079] This can be understood as the deformation heat dissipation layer 20 comprising a stacked metal material layer and an organic polymer material layer. The material expansion ratio of the organic polymer material layer is greater than that of the metal material layer; the thickness of the organic polymer material layer is greater than that of the metal layer.

[0080] Thermal expansion and contraction are inherent properties of materials. The metal layer and the organic polymer layer have different expansion ratios, with the organic polymer layer having a greater expansion ratio than the metal layer. As temperature increases, the organic polymer layer expands but cannot bend. In this case, the bending angle is zero. However, when a metal layer is coated onto the organic polymer layer, the expansion of the organic polymer layer is restricted, while the metal layer is driven to expand due to the difference in thermal expansion rates between the two layers, resulting in bending deformation. Figure 12 In this process, the first deformation layer 21 is a metallic material layer, and the second deformation layer 22 is a polymer material layer. When the temperature of the phototherapy luminescent layer 10 or the treatment surface 1 exceeds a preset value, the deformation heat dissipation layer 20 undergoes a process such as... Figure 5 The deformation shown. In Figure 13 In this process, the first deformation layer 21 is a polymer material layer, and the second deformation layer 22 is a metal material layer. When the temperature of the phototherapy luminescent layer 10 or the treatment surface 1 exceeds a preset value, the deformation heat dissipation layer 20 undergoes a process such as... Figure 4 The deformation shown.

[0081] For example, refer to Figure 5 and Figure 12 The organic polymer material layer (22) can be made of polyethylene (PE), which has many C-C bonds in its main chain and has a much higher linear thermal expansion coefficient than typical textile materials (such as nylon and polyester). Depositing a metal material layer (21), such as a Cu layer, on the PE film yields a bilayer structure. The Cu layer has a thermal expansion ratio of (~10)... -4 Compared to the thermal expansion ratio of PE film (~10), -3 The difference is much smaller. In higher temperatures, the lower PE film expands, but the upper Cu metal layer hardly changes. This mismatch in thermal expansion ratios causes the heterogeneous bilayer actuator to bend away from the treatment surface. In lower temperatures, the metallized PE film actuator returns to its original flat shape. Besides the different expansion rates, copper has a much higher Young's modulus (115 GPa) than the PE film (0.2 GPa). A higher Young's modulus indicates a greater ability to prevent shape deformation. Therefore, the expansion of the PE film is significantly restricted by the copper layer, leading to a sharp increase in the initial bending angle. As the copper layer thickness increases further, the stiffness effect of the metal layer outweighs the effect of the difference in thermal expansion ratios, resulting in a decrease in the bending angle.

[0082] Optionally, the ratio of the material expansion ratio of the organic polymer material layer to that of the metal material layer is set to be greater than or equal to 5; the ratio of the thickness of the organic polymer material layer to that of the metal material layer is set to be greater than or equal to 10. This allows the deformation heat dissipation layer 20 to bend significantly when the temperature exceeds a preset value, improving the heat dissipation effect of the self-heating phototherapy panel. For example, when the thickness ratio of the PE film to the Cu layer is 50, and the temperature of the treatment surface 1 is greater than 40°C, the thermal expansion capabilities of the two layers are mismatched. The heterogeneous bilayer actuator will bend towards the environment (the metal layer is closer to the environment, and the PE film is closer to the skin) to dissipate heat to the skin. When the temperature is less than 40°C, the metallized PE film actuator will return to its original flat shape.

[0083] By placing the deformation heat dissipation layer 20 of metal / organic polymer material on the backlight side of the phototherapy light-emitting layer 10, the deformation heat dissipation layer 20 can be prevented from affecting the light emission of the phototherapy light-emitting layer 10.

[0084] Based on the above embodiments, as one implementation of the present invention, optionally, the self-heating phototherapy panel includes multiple phototherapy light-emitting layers 10, which are arranged side by side; a deformation heat dissipation layer 20 is provided on one side of each phototherapy light-emitting layer 10; when the temperature of a certain phototherapy light-emitting layer 10 becomes too high, only that phototherapy light-emitting layer 10 can be rolled up, which can achieve heat dissipation in a local area of ​​the treatment surface 1. This prevents the treatment surface temperature from becoming too high while ensuring that the phototherapy light-emitting layers 10 in other locations can perform phototherapy normally.

[0085] The present invention also provides a self-heating phototherapy device. Figure 14 This is a structural cross-sectional view of a self-heating phototherapy device provided in an embodiment of the present invention. Figure 15 This is a cross-sectional view of another self-heating phototherapy device provided in an embodiment of the present invention, for reference. Figure 14 and Figure 15 The self-heating phototherapy device includes the self-heating phototherapy panel 100 described in any of the above embodiments, and at least two fixing structures 50; the at least two fixing structures 50 are arranged at intervals around the edge of the self-heating phototherapy panel 100; the fixing structures 50 are used to fix the self-heating phototherapy panel 100 to the treatment surface; wherein, the self-heating phototherapy panel 100 is a phototherapy panel composed of at least a phototherapy light-emitting layer and a deformation heat dissipation layer.

[0086] Specifically, the shape of the self-heating phototherapy panel 100 can be circular, elliptical, or polygonal. The fixing structure 50 can be, for example, Velcro, used to fix the self-heating phototherapy panel 100 to the treatment surface and prevent the self-heating phototherapy panel 100 from falling off.

[0087] Taking the self-heating phototherapy panel 100 as an example, which can be circular, refer to... Figure 14 When there are many fixing structures 50, multiple fixing structures 50 are arranged at intervals around the edge of the self-heating phototherapy panel 100. At this time, the deformation heat dissipation layer 20 can be bent and deformed in the direction away from the treatment surface 1, such that the central region of the deformation heat dissipation layer 20 deforms in the direction away from the treatment surface 1, forming a "bowl" shape that fits onto the treatment surface 1 (e.g., Figure 4 The deformation heat dissipation layer 20 can move the central area of ​​the phototherapy luminescent layer 10 away from the treatment surface 1, increasing the distance between the central area of ​​the phototherapy luminescent layer 10 and the treatment surface 1, thereby achieving heat dissipation from the treatment surface 1, preventing burns to the skin, and improving the user's comfort during phototherapy.

[0088] Taking the self-heating phototherapy panel 100 as an example, which can be circular, refer to... Figure 15When the number of fixed structures 50 is small, the bending deformation of the deformation heat dissipation layer 20 in the direction away from the treatment surface 1 can also be that a portion of the edge area of ​​the deformation heat dissipation layer 20 curls up or rolls up in the direction away from the treatment surface 1 (e.g. Figure 5 This allows the deformable heat dissipation layer 20 to move the edge area of ​​the phototherapy luminescent layer 10 away from the treatment surface 1, increasing the distance between the edge area of ​​the phototherapy luminescent layer 10 and the treatment surface 1. In the curled state, the treatment surface 1 may be almost completely covered by the phototherapy luminescent layer 10. This achieves heat dissipation from the treatment surface 1, prevents burns to the skin, and improves the user's comfort during phototherapy.

[0089] In one embodiment of the present invention, reference is made to... Figure 15 There are two fixed structures 50, which are located on opposite sides of the self-heating phototherapy panel 100 and connected to a portion of the side of the self-heating phototherapy panel 100.

[0090] Specifically, there are two fixing structures 50, namely a first fixing structure 51 and a second fixing structure 52, located on opposite sides of the self-heating phototherapy panel 100. This ensures that the fixing structures 50 can fix the self-heating phototherapy panel 100 to the treatment surface 1 while reducing the cost of the self-heating phototherapy device. With the two fixing structures 50 positioned on opposite sides of the self-heating phototherapy panel 100, the deformation heat dissipation layer 20 undergoes bending deformation in the direction away from the treatment surface 1. Part of the edge area of ​​the deformation heat dissipation layer 20 curls or rolls up in the direction away from the treatment surface 1, allowing the deformation heat dissipation layer 20 to move the edge area of ​​the phototherapy light-emitting layer 10 away from the treatment surface 1. It should be noted that when the self-heating phototherapy panel 100 is quadrilateral, the two fixing structures 50 need to be connected to a portion of the side of the self-heating phototherapy panel 100 to prevent the self-heating phototherapy panel 100 from not being able to curl up from the edge if the entire side is fixed.

[0091] Additionally, the two fixing structures 50 can be connected to the center of the longer pair of opposite sides of the quadrilateral self-heating phototherapy panel 100. Compared to connecting to the center of the shorter pair of opposite sides of the quadrilateral self-heating phototherapy panel 100, the area of ​​the non-deformable region can be reduced, thereby increasing the area of ​​the self-heating phototherapy panel 100 that can be bent or rolled, further improving the heat dissipation efficiency of the self-heating phototherapy panel 100.

[0092] Optional, Figure 16 This is a cross-sectional view of another self-heating phototherapy device provided in an embodiment of the present invention, for reference. Figure 16There are multiple self-heating phototherapy panels 100, which are connected side-by-side between the first fixing structure 51 and the second fixing structure 52. Further, as... Figure 17 As shown, multiple fixed structures 50 are connected side by side.

[0093] Specifically, when the temperature of a self-heating phototherapy panel 100 becomes too high, only that self-heating phototherapy panel 100 can be rolled up, enabling heat dissipation in a localized area of ​​the treatment surface 1. This prevents the treatment surface from overheating while ensuring that the self-heating phototherapy panels 100 in other locations can perform phototherapy normally.

[0094] In another embodiment of the invention, reference is made to... Figure 18 The self-heating phototherapy device also includes a transparent mesh structure 60; a portion of the self-heating phototherapy panel 100 is attached to the transparent mesh structure 60; and each fixing structure 50 is connected to at least a portion of the edge of the transparent mesh structure 60.

[0095] Specifically, the two fixed structures 50 can be connected to each other through a transparent mesh structure 50. One or more self-heating phototherapy panels 100 are attached to the transparent mesh structure, and each self-heating phototherapy panel 100 is partially bonded to the transparent mesh structure. In this way, the self-heating phototherapy panel 100 can bend on its own when the temperature is too high, thereby achieving heat dissipation.

[0096] Note that the above description is merely a preferred embodiment 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 various obvious changes, readjustments, and substitutions can be made 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 which is determined by the scope of the appended claims.

Claims

1. A self-heat dissipating phototherapy panel, characterized in that, The self-heat-dissipation phototherapy panel comprises: a phototherapy light-emitting layer; a deformation heat-dissipation layer attached to one side of the phototherapy light-emitting layer; wherein the deformation heat-dissipation layer is in a flattened shape or a shape tightly fitted to the treatment surface when the temperature is lower than a preset temperature, and the deformation heat-dissipation layer is curved away from the treatment surface when the temperature is greater than or equal to the preset temperature, so as to drive at least part of the phototherapy light-emitting layer away from the treatment surface; the deformation heat-dissipation layer comprises a first deformation layer and a second deformation layer stacked together, and the second deformation layer is located on the side of the phototherapy light-emitting layer close to the first deformation layer; wherein the material expansion ratio of the second deformation layer is greater than that of the first deformation layer, and the thickness of the first deformation layer is less than that of the second deformation layer; or, the material expansion ratio of the first deformation layer is greater than that of the second deformation layer, and the thickness of the first deformation layer is greater than that of the second deformation layer.

2. The self-thermally dissipating phototherapy panel of claim 1, wherein, The self-heat-dissipation phototherapy panel further comprises: a support substrate located on one side of the phototherapy light-emitting layer, the support substrate being used to support the phototherapy light-emitting layer; an encapsulation layer located on the side of the phototherapy light-emitting layer away from the support substrate, the encapsulation layer being used to block the contact between the phototherapy light-emitting layer and the external environment.

3. The self-heat-dissipation phototherapy panel according to claim 2, wherein: the deformation heat-dissipation layer is multiplexed as the support substrate and / or the encapsulation layer.

4. The self-thermally dissipating phototherapy panel of claim 3, wherein, The material of the deformation heat-dissipation layer comprises a shape memory alloy. The deformation heat-dissipation layer is located on the backlight side or the light-emitting side of the phototherapy light-emitting layer, wherein the backlight side and the light-emitting side are located on opposite sides of the phototherapy light-emitting layer.

5. The self-thermally dissipating phototherapy panel of claim 1, wherein, The deformation layer with a larger material expansion ratio comprises an organic polymer material layer, and the deformation layer with a smaller material expansion ratio comprises a metal material layer. The ratio of the material expansion ratio of the organic polymer material layer to the material expansion ratio of the metal material layer is greater than or equal to 5, and the ratio of the thickness of the organic polymer material layer to the thickness of the metal material layer is greater than or equal to 10.

6. A self-heat dissipating phototherapy device, characterized in that, The self-heat-dissipation phototherapy panel comprises at least two fixing structures, the at least two fixing structures are arranged at intervals around the edges of the self-heat-dissipation phototherapy panel, and the fixing structures are used to fix the self-heat-dissipation phototherapy panel at the treatment surface.

7. The self-thermally dissipating phototherapy device of claim 6, wherein, The number of the fixing structures is two, which are a first fixing structure and a second fixing structure, respectively; the first fixing structure and the second fixing structure are located on opposite sides of the self-heat-dissipation phototherapy panel and are connected to part of the positions of the side edges of the self-heat-dissipation phototherapy panel.

8. The self-thermally dissipating phototherapy device of claim 7, wherein, The number of the self-heat-dissipation phototherapy panels is multiple, and the multiple self-heat-dissipation phototherapy panels are connected side by side between the first fixing structure and the second fixing structure.

9. The self-thermally dissipating phototherapy device of claim 6, wherein, The self-heat-dissipation phototherapy panel further comprises a transparent mesh structure, part of the area of the self-heat-dissipation phototherapy panel is attached to the transparent mesh structure, and each fixing structure is connected to at least part of the edge positions of the transparent mesh structure.

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