Beauty mask and beauty instrument

Abstract

The invention provides a beauty mask and a beauty instrument, belongs to the technical field of beauty instruments, and can solve the problems that an existing beauty mask is prone to heating, facial discomfort is caused, and the risk of low-temperature scalding is caused after a long time. The beauty mask disclosed by the invention comprises a substrate and a pixel limiting layer positioned on the substrate, the pixel defining layer is provided with a plurality of pixel openings; the beauty mask further comprises a first metal heat conduction layer and a first microcapsule phase change material layer which are located on the side, away from the substrate, of the pixel limiting layer and are sequentially arranged in a stacked mode. The orthographic projection of the first metal heat conduction layer on the substrate is located between the orthographic projections of the adjacent pixel openings on the substrate; the orthographic projection of the first microcapsule phase change material layer on the substrate covers the orthographic projection of the first metal heat conduction layer and the orthographic projection of the pixel opening on the substrate.

Description

Technical Field

[0001] The present invention belongs to the technical field of beauty instruments, and in particular relates to a beauty mask and a beauty instrument. Background Art

[0002] Organic Light-Emitting Diode (OLED) is a light-emitting device that uses organic solid-state semiconductors as light-emitting materials. It has broad application prospects due to its advantages of simple preparation process, low cost, low power consumption, high luminous brightness, and wide operating temperature adaptability. In the beauty instrument industry, beauty masks use OLED as a light source, which emits light of different wavelengths. These lights can penetrate the surface of the facial skin and act on the dermis, promoting the metabolism of the skin cells on the face, stimulating the production of collagen and elastic fibers, thereby achieving various beauty and skin care effects, such as whitening, removing acne, and eliminating acne.

[0003] The light emitted by the OLED in the beauty mask will generate a certain amount of heat when irradiating the facial skin. In addition, the beauty mask is close to the facial skin or even fits the face, so the user will feel facial discomfort. Over time, there is a risk of low-temperature burns, which seriously reduces the user experience. Summary of the invention

[0004] The present disclosure aims to solve at least one of the technical problems existing in the prior art, and provides a beauty mask and a beauty instrument.

[0005] In a first aspect, an embodiment of the present disclosure provides a beauty mask, the beauty mask comprising: a substrate, a pixel defining layer located on the substrate; the pixel defining layer having a plurality of pixel openings; the beauty mask further comprising: a first metal heat conducting layer and a first microcapsule phase change material layer located on a side of the pixel defining layer away from the substrate and stacked in sequence;

[0006] The orthographic projection of the first metal heat-conducting layer on the substrate is located between the orthographic projections of the adjacent pixel openings on the substrate;

[0007] The orthographic projection of the first microcapsule phase-change material layer on the base substrate covers the orthographic projections of the first metal heat-conducting layer and the pixel opening on the base substrate.

[0008] In some embodiments, the beauty mask further includes: a second metal heat-conducting layer and a second microcapsule phase-change material layer located on a side of the first microcapsule phase-change material layer away from the base substrate and stacked in sequence;

[0009] The orthographic projection of the second metal heat-conducting layer on the base substrate is located between the orthographic projections of the adjacent pixel openings on the base substrate;

[0010] The orthographic projection of the second microcapsule phase change material layer on the base substrate covers the orthographic projection of the second metal heat conductive layer and the pixel opening on the base substrate;

[0011] The second metal heat-conducting layer is connected to the first metal heat-conducting layer through a via hole penetrating through the first microcapsule phase-change material layer.

[0012] In some embodiments, the via hole is located in the middle of a line connecting centers of adjacent pixel openings.

[0013] In some embodiments, the particle sizes of the microcapsules in the first microcapsule phase change material layer and the second microcapsule phase change material layer are both 1 micron to 10 microns.

[0014] In some embodiments, the thickness of the first microcapsule phase change material layer and the second microcapsule phase change material layer are both 5 micrometers to 10 micrometers.

[0015] In some embodiments, the ratio of the width of the first metal heat conductive layer between adjacent pixel openings to the spacing between adjacent pixel openings is 0.7 to 0.9;

[0016] The ratio of the width of the second metal heat-conducting layer between adjacent pixel openings to the spacing between adjacent pixel openings is 0.7 to 0.9.

[0017] In some embodiments, the beauty mask further comprises: a heat-resistant layer;

[0018] The heat-resistant layer is located on a side of the second microcapsule phase-change material layer away from the base substrate.

[0019] In some embodiments, the thermal conductivity of the heat-resistant layer is less than or equal to 0.3 W / m·K.

[0020] In some embodiments, the cosmetic mask further comprises: a protective layer;

[0021] The protective layer is located on a side of the heat-resistance layer away from the substrate.

[0022] In some embodiments, the beauty mask further comprises: a plurality of light emitting devices; the light emitting devices comprise: a first electrode, a second electrode and a light emitting layer;

[0023] The first electrode is located on the base substrate and exposed by the pixel opening;

[0024] The light-emitting layer is located on the side of the first electrode facing away from the substrate and is disposed within the pixel opening;

[0025] The second electrode is located on the side of the light-emitting layer facing away from the substrate.

[0026] In some embodiments, the second electrodes of the respective light-emitting devices are integrally formed structures.

[0027] In a second aspect, an embodiment of the present disclosure provides a beauty instrument, which includes the beauty mask provided in the first aspect as described above. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of a beauty mask provided by an embodiment of the present disclosure.

[0029] Figure 2 It is a schematic structural diagram of another beauty mask provided by an embodiment of the present disclosure.

[0030] Figure 3 is Figure 2 A top-view structural diagram of the beauty mask shown. Detailed Embodiments

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The components of the embodiments of the present disclosure described and illustrated herein can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present disclosure provided in the drawings below is not intended to limit the scope of the present disclosure claimed, but merely represents selected embodiments of the present disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative efforts fall within the scope of protection of the present disclosure. Without conflict, the various embodiments of the present disclosure and the various features in the embodiments can be combined with each other.

[0032] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should have the ordinary meaning understood by those of ordinary skill in the art to which the present disclosure belongs. The "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are only used to distinguish different components. Similarly, terms such as "a", "one", or "the" do not denote a quantity limitation, but mean that there is at least one. The terms "including" or "comprising" and the like mean that the elements or items appearing before the term cover the elements or items listed after the term and their equivalents, without excluding other elements or items.

[0033] As used in this disclosure, "a plurality of" or "several" means two or more. "And / or" describes the relationship between associated objects and indicates that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0034] During the operation of an OLED, while electrons and holes recombine in the light-emitting layer to generate photons, some heat will also be generated. This heat mainly comes from the following aspects: 1. Internal quantum efficiency limitation: Not all electron-hole recombinations generate photons, and part of the energy is converted into thermal energy in the form of non-radiative recombination. 2. External quantum efficiency limitation: Even if photons are generated, some photons cannot be emitted due to total internal reflection, absorption, etc., and are finally dissipated in the form of thermal energy. 3. Energy loss of the driving circuit: The driving circuit of the OLED also generates some heat during operation. 4. When the OLED is used as a light source for a beauty mask close to the facial skin, the heat cannot be effectively dissipated, resulting in an increase in the surface temperature of the beauty mask. If the temperature exceeds the tolerance range of the facial skin, it may cause discomfort or even skin damage, posing a risk of low-temperature burns.

[0035] Currently, the conventional method can reduce the driving current of the OLED to reduce the light emission intensity and heat generation. However, this will directly affect the brightness and beauty effect of the OLED. Or adding heat sinks, thermal conductive materials, etc. to the beauty mask will increase the thickness and weight of the beauty mask, affecting the wearing comfort. Or using active cooling means such as a micro fan or a thermoelectric cooler, but this will increase energy consumption, noise, and cost, and is not suitable for a lightweight beauty mask.

[0036] In order to solve at least one of the above technical problems, the embodiments of the present disclosure provide a beauty mask and a beauty instrument. The beauty mask and the beauty instrument provided by the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] In a first aspect, the embodiments of the present disclosure provide a beauty mask, Figure 1 which is a schematic structural diagram of a beauty mask provided by the embodiments of the present disclosure, as Figure 1As shown in the figure, the beauty mask includes: a substrate 101, and a pixel defining layer 102 located on the substrate 101; the pixel defining layer 102 has a plurality of pixel openings P; the beauty mask further includes: a first metal heat conducting layer 103 and a first microcapsule phase change material layer 104 which are sequentially stacked on the side of the pixel defining layer 102 away from the substrate 101; the orthographic projection of the first metal heat conducting layer 103 on the substrate 101 is located between the orthographic projections of adjacent pixel openings P on the substrate 101; the orthographic projection of the first microcapsule phase change material layer 104 on the substrate 101 covers the orthographic projection of the first metal heat conducting layer 103 and the pixel openings P on the substrate 101.

[0038] The substrate 101 can be made of rigid materials such as glass, which can improve the load-bearing capacity of the substrate 101 for other film layers thereon. Of course, the substrate 101 can also be made of flexible materials such as polyimide (PI), which can improve the anti-bending and anti-stretching properties of the whole beauty mask, and avoid the substrate 101 from breaking due to the stress generated during bending, stretching and twisting, resulting in open circuit defects. In practical applications, the material of the substrate 101 can be reasonably selected according to actual needs to ensure that the metal oxide thin film transistor has good performance.

[0039] It can be understood that a buffer layer 101a can also be provided on the substrate 101. The buffer layer 101a can be made of at least one of silicon nitride (SiN) and silicon dioxide (SiO2). It can form a single-layer structure made of a single material, or a multi-layer structure made of a variety of different materials, so as to prevent gases such as water and oxygen from invading other film layers thereon from one side of the substrate 101 and damaging the beauty mask. Specifically, the buffer layer 101a can be a stacked structure of silicon nitride (SiN) and silicon dioxide (SiO2).

[0040] The pixel defining layer 102 is composed of a plurality of pixel barriers arranged at intervals. A plurality of pixel openings P arranged in an array can be defined by surrounding between adjacent pixel barriers. The OLED light-emitting device used as a light source can be arranged in the pixel openings P. The pixel defining layer 102 can be made of organic materials, such as organic materials like acrylic, resin, polyimide or benzocyclobutene. Carbon black additives can also be added to the material of the pixel defining layer 102 to make it present a black state, so as to avoid light leakage caused by partial exposure of the pixel defining layer 102 and affect the beauty effect of the beauty mask.

[0041] The first metal heat-conducting layer 103 can be made of a material with good thermal conductivity, such as at least one of gold (Au), silver (Ag), aluminum (Al), copper (Cu), nickel (Ni), chromium (Cr), molybdenum (Mo), titanium (Ti), etc. It can be a single-layer structure or a multi-layer structure. The heat generated by the beauty mask during operation can be conducted out by the first metal heat-conducting layer 103 to prevent heat accumulation inside. At the same time, the orthographic projection of the first metal heat-conducting layer 103 on the base substrate 101 is located between the orthographic projections of adjacent pixel openings P on the base substrate 101, which can prevent the first metal heat-conducting layer 103 from blocking the light emitted from the pixel openings P, and can prevent the light emitted from adjacent pixel openings P from crosstalk.

[0042] The first microcapsule phase change material layer 104 can be made of microcapsule phase change material, and the microcapsule can wrap the phase change material therein to prevent the phase change material from flowing outward when it is liquid. In the working state, due to the increase in temperature, the phase change material can absorb the heat conducted by the first metal heat conductive layer 103, and its state is converted from solid to liquid, so as to store the heat and prevent the heat from being directly conducted to the facial skin and causing facial discomfort and the risk of low-temperature burns. In the non-working state, the phase change material can release the stored heat to the environment. In addition, the orthographic projection of the first microcapsule phase change material layer 104 on the base substrate 101 covers the first metal heat conductive layer 103, and can completely cover each first metal heat conductive layer 103 to effectively absorb the heat, and its area is large, which can increase the storage capacity of heat. The first microcapsule material layer 104 is in a transparent state, which can prevent the light emitted by the pixel opening P from being blocked, affecting the beauty effect of the beauty instrument.

[0043] In the beauty mask provided by the embodiment of the present disclosure, the first metal heat-conducting layer 103 can conduct the heat generated by the light emitted from the pixel opening P to the first microcapsule phase change material layer 104 thereon, and utilize the characteristics of the phase change material in the first microcapsule phase change material layer 104 to absorb and store the heat, so that the heat generated by the beauty mask during operation can be prevented from being directly conducted to the facial skin, causing facial discomfort and the risk of low-temperature burns. In addition, the first metal heat-conducting layer 103 and the first microcapsule phase change material layer 104 are integrated into the beauty mask, and the thickness of the two is small, which has little effect on the thickness and weight of the beauty mask, which is conducive to the portability of the beauty mask. In addition, the first metal heat-conducting layer 103 and the first microcapsule phase change material layer 104 do not need to be driven by a separate circuit during the process of conducting and absorbing heat, so the energy consumption of the beauty mask can be reduced, which is conducive to cost saving.

[0044] Figure 2 A schematic diagram of the structure of another beauty mask provided by an embodiment of the present disclosure, as shown in FIG. Figure 2As shown, the beauty mask further includes: a second metal heat conduction layer 105 and a second microcapsule phase change material layer 106 that are sequentially stacked on a side of the first microcapsule phase change material layer 104 away from the substrate 101; the orthographic projection of the second metal heat conduction layer 105 on the substrate 101 is located between the orthographic projections of adjacent pixel openings P on the substrate 101; the orthographic projection of the second microcapsule phase change material layer 106 on the substrate 101 covers the orthographic projection of the second metal heat conduction layer 105 and the pixel opening P on the substrate 101; the second metal heat conduction layer 105 is connected to the first metal heat conduction layer 103 through a via V that penetrates the first microcapsule phase change material layer 104.

[0045] Figure 2 The beauty mask shown in Figure 1 is different from the beauty mask shown in Figure 1 In the beauty mask shown in Figure 2 only one layer of metal heat conduction layer and one layer of microcapsule phase change material layer are provided, namely the first metal heat conduction layer 103 and the first microcapsule phase change material layer 104,

[0046] In the beauty mask shown in

[0047] two layers of metal heat conduction layers and two layers of microcapsule phase change material layers are provided, namely the first metal heat conduction layer 103, the first microcapsule phase change material layer 104, the second metal heat conduction layer 105 and the second microcapsule phase change material layer 106.

[0048] Figure 3 For Figure 2The top view structural schematic diagram of the beauty mask shown, as Figure 3 shown, the via V is located at the middle position of the center connection line of adjacent pixel openings P.

[0049] The shape of the pixel opening P can be circular, square, triangular, polygonal, etc., and the shape of the pixel opening P can be set according to actual needs. Taking the circular pixel opening P as an example, the connection via V between the first metal heat-conducting layer 103 and the second metal heat-conducting layer 105 is arranged at the middle position of the center connection line of adjacent pixel openings P. The width of the first metal heat-conducting layer 103 between adjacent pixel openings P can be d. To ensure the heat transfer efficiency, the diameter of the via V can be between 0.4d and d. The shape of the via V can be circular, square, triangular, polygonal, etc.

[0050] In some embodiments, the microcapsule particle sizes in the first microcapsule phase change material layer 104 and the second microcapsule phase change material layer 106 are both 1 micron to 10 microns.

[0051] The first microcapsule phase change material layer 104 and the second microcapsule phase change material layer 106 can be made of materials with the same specifications. The microcapsules can wrap the phase change materials therein to prevent the phase change materials from flowing out when in liquid state. The microcapsules can be made of materials with high transparency, such as polymethyl methacrylate (PMMA), polystyrene (PS), etc.

[0052] The particle size of the microcapsules can be between 1 micron and 10 microns. For the microcapsules within this range, the light scattering effect on visible light is small, which can avoid affecting the transmission path of the light emitted from the pixel opening P by the first microcapsule phase change material layer 104 and the second microcapsule phase change material layer 106, and is beneficial to ensuring the high transparency of the first microcapsule phase change material layer 104 and the second microcapsule phase change material layer 106. And it can ensure that the phase change materials inside are evenly distributed, avoiding the aggregation of the phase change materials and affecting the optical performance. At the same time, it can increase the specific surface area of the microcapsules and improve the heat exchange efficiency.

[0053] In practical applications, techniques such as ultrasonic dispersion and high-speed stirring can be used to disperse the phase change materials inside the microcapsules to ensure that the phase change materials are uniform and avoid the aggregation of the phase change materials and affecting the optical performance. When selecting the phase change materials, the operating temperature of the beauty mask can be referred to. For example, the phase change temperature of the phase change materials is between 35°C and 45°C to ensure that heat can be effectively absorbed when the temperature rises.

[0054] In some embodiments, the thicknesses of both the first microcapsule phase change material layer 104 and the second microcapsule phase change material layer 106 are 5 microns to 10 microns.

[0055] The first microcapsule phase change material layer 104 and the second microcapsule phase change material layer 106 can be set to be 5 to 10 micrometers to fill more microcapsule phase change materials, ensuring that the microcapsule phase change materials can effectively absorb sufficient heat, meet the requirements of temperature control, prevent heat from directly conducting to the facial skin and causing facial discomfort and the risk of low-temperature scald. In some embodiments, the ratio of the width of the first metal heat conduction layer 103 between adjacent pixel openings P to the spacing between adjacent pixel openings P is 0.7 to 0.9; the ratio of the width of the second metal heat conduction layer 105 between adjacent pixel openings P to the spacing between adjacent pixel openings P is 0.7 to 0.9.

[0056] The width of the first metal heat conduction layer 103 between adjacent pixel openings P can be d, the spacing between adjacent pixel openings P can be w, and the ratio of the width d of the first metal heat conduction layer 103 between adjacent pixel openings P to the spacing w between adjacent pixel openings P is 0.7 to 0.9. This can make the first metal heat conduction layer 103 have a larger area, ensure the heat conduction effect, and at the same time avoid the first metal heat conduction layer 103 blocking the pixel opening P and affecting the beauty effect of the beauty mask.

[0057] The width of the second metal heat conduction layer 105 between adjacent pixel openings P can be d, the spacing between adjacent pixel openings P can be w, and the ratio of the width d of the second metal heat conduction layer 105 between adjacent pixel openings P to the spacing w between adjacent pixel openings P is 0.7 to 0.9. This can make the second metal heat conduction layer 105 have a larger area, ensure the heat conduction effect, and at the same time avoid the second metal heat conduction layer 105 blocking the pixel opening P and affecting the beauty effect of the beauty mask.

[0058] In some embodiments, as Figure 2 shown, the beauty mask further includes: a heat insulation layer 107; the heat insulation layer 107 is located on the side of the second microcapsule phase change material layer 106 away from the substrate 101.

[0059] The heat insulation layer 107 can be made of a material with a lower thermal conductivity. For example, the thermal conductivity of the heat insulation layer 107 is less than or equal to 0.3 W / m·K. The heat insulation layer 107 has good heat insulation performance, can block heat, so that the heat can be absorbed by the second microcapsule phase change material layer 106, and avoid the risk of facial discomfort and low-temperature scald caused by high heat directly conducting to the facial skin.

[0060] The material of the heat-resistant layer 107 may be polymethyl methacrylate (PMMA), which has a thermal conductivity of about 0.19 W / m·K and a light transmittance of about 92%, and has good heat insulation and light transmission properties. Alternatively, the material of the heat-resistant layer 107 may be polycarbonate (PC), which has a thermal conductivity of about 0.19 W / m·K and a light transmittance of about 92%, and has good heat insulation and light transmission properties. At the same time, it has good toughness and impact resistance, and is suitable for making flexible films. Alternatively, the material of the heat-resistant layer 107 may be polyimide (PI), which has a thermal conductivity of about 0.12 W / m·K and a light transmittance of about 80%, and has good heat insulation and light transmission properties. Alternatively, the material of the heat-resistant layer 107 may be transparent aerogel, which has a thermal conductivity of about 0.013 W / m·K and a light transmittance of about 80%, and has good heat insulation and light transmission properties.

[0061] In some implementations, such as Figure 2 As shown, the beauty mask further includes: a protective layer 108 ; the protective layer 108 is located on the side of the heat-resistant layer 107 away from the base substrate 101 .

[0062] The protective layer 108 can be made of a medical grade transparent thermoplastic polyurethane (TPU) film, which has a high light transmittance, meets the light transmission requirements, and does not affect the beauty effect. In addition, the medical grade transparent thermoplastic polyurethane (TPU) film is safe for the skin, has no irritation, no allergic reaction, and has good biocompatibility to meet the market standards for beauty masks. In addition, the medical grade transparent thermoplastic polyurethane (TPU) film is easy to hot press, cut and seal, and is suitable for large-scale production.

[0063] Understandably, Figure 1 The beauty mask shown may also be provided with Figure 2 The heat-resistant layer 107 and the protective layer 108 shown in FIG. Figure 2 The implementation principles and beneficial effects of the heat-resistant layer 107 and the protective layer 108 are the same and will not be described in detail here.

[0064] In some embodiments, Figure 1 and Figure 2 As shown, the beauty mask also includes: a plurality of light-emitting devices; the light-emitting devices include: a first electrode 109, a second electrode 110 and a light-emitting layer 111; the first electrode 109 is located on the base substrate 101 and is exposed by the pixel opening P; the light-emitting layer 111 is located on the side of the first electrode 109 away from the base substrate 101 and is arranged in the pixel opening P; the second electrode 110 is located on the side of the light-emitting layer 111 away from the base substrate 101.

[0065] Each light-emitting device can emit light of different wavelengths. These lights can penetrate the surface layer of facial skin and act on the dermis layer, promoting the metabolism of facial skin cells, stimulating the generation of collagen and elastic fibers, thereby achieving various beauty and skin care effects, such as whitening, removing acne, eliminating pimples, etc.

[0066] Among them, the polarities of the first electrode 109 and the second electrode 110 are opposite. Specifically, the first electrode 109 can be the anode of the light-emitting device, and the anode can be made of at least one of metal materials such as silver (Ag), aluminum (Al), titanium (Ti), etc. The second electrode 110 can be the cathode of the light-emitting device, and the cathode can be made of transparent conductive materials such as indium tin oxide (ITO) and indium zinc oxide (IZO). The cathodes of the respective light-emitting devices 104 can be an integrally formed structure to form a planar electrode, covering the light-emitting layer 111 and the pixel defining layer 102. Both the anode and the cathode can be a single-layer structure made of the above single material, or a multi-layer structure made of the above multiple materials, which can be specifically selected according to actual needs.

[0067] It can be understood that in addition to the above-mentioned light-emitting layer 111 between the first electrode 109 and the second electrode 110, the light-emitting device can also include various other functional layers, such as at least one of a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), and an electron injection layer (EIL) (not shown in the figure), the purpose of which is to facilitate the transport of electrons and holes to the light-emitting layer 111.

[0068] It should be noted here that the beauty mask may further include a driving circuit layer (not shown in the figure). The driving circuit layer may be located on the side of the first electrode 109 close to the substrate 101. A pixel driving circuit is provided in the driving circuit layer. The pixel driving circuit may be connected to the first electrode 109, the second electrode 110, etc. of the light-emitting device to provide driving voltages to the first electrode 109 and the second electrode 110 of the light-emitting device, so that electrons and holes recombine in the light-emitting layer to generate photons, realizing the light-emitting function. It can be understood that the pixel driving circuit may specifically be structures such as 3T1C (three thin-film transistors and one storage capacitor), 7T1C (seven thin-film transistors and one storage capacitor), 8T1C (eight thin-film transistors and one storage capacitor), 8T2C (eight thin-film transistors and two storage capacitors), etc. The specific structure of the pixel driving circuit can be selected according to the actual situation, and will not be listed one by one here. The beauty mask may further include a packaging layer. The packaging layer may cover the second electrode 110 and package the entire light-emitting device to prevent gases such as water and oxygen from invading the light-emitting layer 111 of the light-emitting device and affecting the display effect. The packaging layer may be located on the side of the second electrode 110 facing away from the substrate 101. The packaging layer 1 may specifically include a first inorganic packaging layer, an organic packaging layer, and a second inorganic packaging layer sequentially arranged along the direction away from the substrate 101.

[0069] The first inorganic packaging layer and the second inorganic packaging layer may be formed of inorganic materials such as silicon nitride, silicon oxide, silicon oxynitride, etc., and the organic packaging layer may be formed of organic materials such as polyimide (PI), epoxy resin, etc. The packaging layer composed of this composite film layer can provide multiple protections for the light-emitting devices in the display substrate, having a better packaging effect and avoiding damage to the light-emitting devices caused by the invasion of gases such as water and oxygen.

[0070] In a specific example, taking Figure 2 the shown beauty mask as the test object, the beauty mask is provided with a first metal heat-conducting layer 103, a first microcapsule phase-change material layer 104, a second metal heat-conducting layer 105, and a second microcapsule phase-change material layer 106. The first metal heat-conducting layer 103 and the second metal heat-conducting layer 105 are connected through a via hole penetrating the first microcapsule phase-change material layer 104. According to the existing phase-change materials for test simulation, taking the microcapsule phase-change material Taking RT37 as an example, the phase change temperature (melting point) is 36°C to 38°C, the particle size can reach 2 microns, the latent heat of phase change (latent heat of melting / solidification) is about 190 kJ / kg, and the materials of the first metal heat-conducting layer 103 and the second metal heat-conducting layer 105 are aluminum. The thermal conductivity of aluminum is 237 W / m·k, which has high thermal conductivity, and has the advantage of low mass compared with copper. By calculation, the total thickness of the two layers of microcapsule phase change material layers required is 19.9 microns. For example, the thickness of the first microcapsule phase change material layer 104 is 10 microns, and the thickness of the second microcapsule phase change material layer 106 is 9.9 microns. The test is based on the assumption of the face area. After testing, within 30 minutes of use, the temperature inside the beauty mask does not exceed 40°C.

[0071] It can be seen that the beauty instrument mask provided by the implementation of the present disclosure can effectively absorb and store heat, so as to avoid the heat generated during the operation of the beauty mask from being directly conducted to the facial skin, causing facial discomfort and the risk of low-temperature burns.

[0072] In a second aspect, the embodiments of the present disclosure provide a beauty instrument, which includes the beauty mask provided in any of the above embodiments. The implementation principle and beneficial effects are the same as those of the above beauty mask, and will not be elaborated here.

[0073] It should be noted that in the drawings, the dimensions of layers and regions may be exaggerated for clarity of illustration. And it can be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be an intermediate layer. Additionally, it can be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element, or there may be more than one intermediate layer or element. Further, it can be understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Like reference numerals throughout indicate like elements.

[0074] In several embodiments provided by the embodiments of the present disclosure, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the positions of the components shown are only a logical functional position, and there may be other position arrangements in actual implementation.

[0075] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present disclosure, and these modifications and improvements are also regarded as the protection scope of the present disclosure.

Claims

1. A beauty mask, characterized in that: The beauty mask comprises: a base substrate, a pixel defining layer located on the base substrate; the pixel defining layer has a plurality of pixel openings; the beauty mask further comprises: a first metal heat conducting layer and a first microcapsule phase change material layer located on a side of the pixel defining layer away from the base substrate and stacked in sequence; The orthographic projection of the first metal heat-conducting layer on the substrate is located between the orthographic projections of the adjacent pixel openings on the substrate; The orthographic projection of the first microcapsule phase-change material layer on the base substrate covers the orthographic projections of the first metal heat-conducting layer and the pixel opening on the base substrate.

2. The beauty mask according to claim 1, characterized in that: The beauty mask further comprises: a second metal heat-conducting layer and a second microcapsule phase-change material layer which are located on a side of the first microcapsule phase-change material layer away from the base substrate and are stacked in sequence; The orthographic projection of the second metal heat-conducting layer on the base substrate is located between the orthographic projections of the adjacent pixel openings on the base substrate; The orthographic projection of the second microcapsule phase change material layer on the base substrate covers the orthographic projection of the second metal heat conductive layer and the pixel opening on the base substrate; The second metal heat-conducting layer is connected to the first metal heat-conducting layer through a via hole penetrating through the first microcapsule phase-change material layer.

3. The beauty mask according to claim 2, characterized in that: The via hole is located at the middle position of a line connecting the centers of adjacent pixel openings.

4. The beauty mask according to claim 2, characterized in that: The particle sizes of the microcapsules in the first microcapsule phase change material layer and the second microcapsule phase change material layer are both 1 micron to 10 microns.

5. The beauty mask according to claim 2, characterized in that: The thickness of the first microcapsule phase change material layer and the second microcapsule phase change material layer are both 5 micrometers to 10 micrometers.

6. The beauty mask according to claim 2, characterized in that: The ratio of the width of the first metal heat-conducting layer between adjacent pixel openings to the spacing between adjacent pixel openings is 0.7 to 0.9; The ratio of the width of the second metal heat-conducting layer between adjacent pixel openings to the spacing between adjacent pixel openings is 0.7 to 0.

9.

7. The beauty mask according to claim 2, characterized in that: The beauty mask further comprises: a heat-resistant layer; The heat-resistant layer is located on a side of the second microcapsule phase-change material layer away from the base substrate.

8. The beauty mask according to claim 7, characterized in that: The thermal conductivity of the heat-resistant layer is less than or equal to 0.3 W / m·K.

9. The beauty mask according to claim 7, characterized in that: The beauty mask also includes: a protective layer; The protective layer is located on a side of the heat-resistance layer away from the substrate.

10. The beauty mask according to claim 1 or 2, characterized in that: The beauty mask further comprises: a plurality of light emitting devices; the light emitting devices comprise: a first electrode, a second electrode and a light emitting layer; The first electrode is located on the base substrate and exposed by the pixel opening; The light emitting layer is located on a side of the first electrode away from the base substrate and is disposed in the pixel opening; The second electrode is located on a side of the light emitting layer away from the base substrate.

11. The cosmetic mask according to claim 10, characterized in that: The second electrode of each of the light-emitting devices is an integrally formed structure.

12. A beauty instrument, characterized in that: The beauty instrument comprises the beauty mask according to any one of claims 1 to 11.

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