Phototherapy beauty instrument

Abstract

The invention provides a phototherapy beauty instrument which comprises a light-emitting panel used for being attached to a to-be-irradiated part of a user, the light-emitting panel comprises a substrate and a light-emitting device arranged on the substrate, the light-emitting device comprises a plurality of light-emitting pixels, each light-emitting pixel comprises a cathode, a light-emitting layer and an anode which are arranged in a stacked mode, and the cathode, the light-emitting layer and the anode are arranged on the substrate. Each light-emitting pixel can emit monochromatic light; wherein the light emitting colors of all the light emitting pixels are the same, or the plurality of light emitting pixels can emit at least two kinds of monochromatic light with different colors. The phototherapy beauty instrument provided by the invention is better in irradiation uniformity.

Description

Technical Field

[0001] The present invention relates to the technical field of beauty instruments, and particularly to a light therapy beauty instrument. Background Art

[0002] Light therapy beauty is an important branch in the beauty field, which mainly irradiates the skin with light of different wavelengths to achieve the purpose of solving various skin problems. In the related art, a light therapy beauty instrument generally uses LED lamp beads that can emit specific wavelengths as the light source. The disadvantage is that the number of LED lamp beads is small and they are distributed dispersedly, resulting in poor irradiation uniformity. Summary of the Invention

[0003] In order to solve at least one of the above-mentioned problems in the prior art, the embodiments of the present disclosure provide a light therapy beauty instrument.

[0004] The technical solutions provided by the embodiments of the present disclosure are as follows:

[0005] The embodiments of the present disclosure provide a light therapy beauty instrument, including a light-emitting panel for fitting the part of the user to be irradiated. The light-emitting panel includes a substrate and a light-emitting device provided on the substrate. The light-emitting device includes a plurality of light-emitting pixels. Each light-emitting pixel includes a cathode, a light-emitting layer, and an anode stacked, and a single light-emitting pixel can emit monochromatic light; wherein, the light-emitting colors of all the light-emitting pixels are the same, or at least two monochromatic lights of different colors can be emitted by a plurality of the light-emitting pixels.

[0006] Exemplarily, when the light-emitting colors of all the light-emitting pixels are the same, a plurality of the light-emitting pixels are arranged in an array.

[0007] When at least two monochromatic lights of different colors can be emitted by a plurality of the light-emitting pixels, the light-emitting device includes a plurality of pixel units. Each pixel unit includes at least two light-emitting pixels for respectively emitting different monochromatic lights, and a plurality of the pixel units are arranged in an array.

[0008] Exemplarily, a plurality of the light-emitting pixels include at least one first pixel unit and at least one second pixel unit. The first pixel unit includes a first light-emitting pixel, a second light-emitting pixel, and a third light-emitting pixel for respectively emitting different monochromatic lights. The second pixel unit includes a first light-emitting pixel, a second light-emitting pixel, and a fourth light-emitting pixel for respectively emitting different monochromatic lights. The first pixel unit and the second pixel unit are arranged in an array.

[0009] Exemplarily, in the pixel array formed by the first pixel unit and the second pixel unit, a plurality of the first pixel units are arranged in M rows, a plurality of the second pixel units are arranged in N rows, and the M rows of first pixel units and the N rows of second pixel units are alternately arranged in the column direction; wherein,

[0010] The third light-emitting pixels and the fourth light-emitting pixels in adjacent rows of pixel units are alternately arranged in the column direction, and the first light-emitting pixels and the second light-emitting pixels in adjacent rows of pixel units are alternately arranged in the column direction; or,

[0011] The first light-emitting pixels in adjacent rows of pixel units are arranged in the column direction, the second light-emitting pixels in adjacent rows of pixel units are arranged in the column direction, and the third light-emitting pixels and the fourth light-emitting pixels in adjacent rows of pixel units are alternately arranged in the column direction.

[0012] Exemplarily, in the pixel array formed by the first pixel unit and the second pixel unit, the first pixel unit and the second pixel unit are alternately arranged in sequence in any row of pixel units, where

[0013] The light-emitting pixels emitting the same color light in adjacent rows of pixel units are in alignment in the row direction;

[0014] Or, the light-emitting pixels emitting the same color light in adjacent rows of pixel units are arranged with a relative offset in the row direction.

[0015] Exemplarily, any adjacent first pixel unit and second pixel unit in the same row share the same first light-emitting pixel and / or share the same second light-emitting pixel.

[0016] Exemplarily, the wavelength of the monochromatic light emitted by the first light-emitting pixel is 570 - 590 nm; the wavelength of the monochromatic light emitted by the second light-emitting pixel is 590 - 620 nm; the wavelength of the monochromatic light emitted by the third light-emitting pixel is 450 - 495 nm; the wavelength of the monochromatic light emitted by the fourth light-emitting pixel is 800 - 850 nm.

[0017] Exemplarily, the shape of the positive projection of a single light-emitting pixel on the substrate is circular, triangular, quadrilateral, or hexagonal.

[0018] Exemplarily, the light-emitting device is a bottom-emitting light-emitting device, where the cathode, the light-emitting layer, and the anode are stacked in sequence from the side far from the substrate to the side close to the substrate, the substrate is a transparent substrate, and the anode is a transparent anode, and the cathode is a reflective cathode.

[0019] Exemplarily, the maximum single-side dimension of a single light-emitting pixel is A, where the value range of A is 30 - 80 μm, the pixel pitch between two adjacent light-emitting pixels is 10 - 200 μm, and the pixel density is 100 - 500.

[0020] The beneficial effects brought by the embodiments of the present disclosure are as follows:

[0021] In the light therapy beauty device provided by the embodiments of the present disclosure, the light emitting panel is used to fit the part to be irradiated of the user. The light emitting panel includes a substrate and light emitting devices arranged on the substrate, and the light emitting pixels in the light emitting devices adopt a stacked structure of an anode, a light emitting layer, and a cathode. In this way, by using the light emitting pixels with a stacked structure to emit light, and the entire light emitting panel serves as the surface light source of the light therapy beauty device. Compared with the technical solution of using LED lamp beads as the light source in the related art for light therapy beauty devices, when used at a short distance, the irradiation uniformity is better. Moreover, the light emitting layers of each of the light emitting pixels can use the same light emitting material, that is, monochromatic light of the same color can be emitted; if different light emitting materials are used for the light emitting layers in each light emitting pixel, monochromatic light of at least two colors can be emitted, without the need to additionally increase costs or increase the volume of the entire panel, and more functional requirements can be met. Description of the Drawings

[0022] Figure 1 Schematic cross-sectional structure diagram of the light emitting panel of the light therapy beauty device in some embodiments of the present disclosure;

[0023] Figure 2 Schematic diagram of the light emitting pixel distribution of the light emitting device in the light therapy beauty device in some embodiments of the present disclosure;

[0024] Figure 3 Schematic diagram of one of the pixel arrangements in the light therapy beauty device in some embodiments of the present disclosure;

[0025] Figure 4 Schematic diagram of another pixel arrangement in the light therapy beauty device in some embodiments of the present disclosure;

[0026] Figure 5 Schematic diagram of yet another pixel arrangement in the light therapy beauty device in some embodiments of the present disclosure;

[0027] Figure 6 Schematic diagram of still another pixel arrangement in the light therapy beauty device in some embodiments of the present disclosure;

[0028] Figure 7 Schematic diagram of one of the pixel arrangements in the light therapy beauty device in some embodiments of the present disclosure;

[0029] Figure 8 Schematic diagram of another pixel arrangement in the light therapy beauty device in some embodiments of the present disclosure;

[0030] Figure 9 Schematic diagram of one of the stacked structures of the light emitting pixels in the light therapy beauty device in some embodiments of the present disclosure;

[0031] Figure 10It shows the second schematic diagram of the stacked structure of the light-emitting pixels in the light therapy beauty device in some embodiments of the present disclosure. Detailed implementation manners

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0033] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure pertains. The terms "first", "second", and the like used in the present disclosure do not denote any order, quantity, or importance, but are only used to distinguish different components. Similarly, the terms "a", "an", or "the" and the like 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. The terms "connected" or "coupled" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0034] The features such as "parallel", "perpendicular", and "identical" used in the embodiments of the present disclosure include the strict meanings of "parallel", "perpendicular", "identical", etc., as well as the cases of "substantially parallel", "substantially perpendicular", "substantially identical", etc. with a certain tolerance. Considering the measurement and the tolerances associated with the measurement of a specific quantity (for example, the limitations of the measurement system), it means within the acceptable deviation range for a specific value determined by those of ordinary skill in the art. For example, "substantially" can mean within one or more standard deviations, or within 3% or 5% of the value.

[0035] In addition, in this document, unless otherwise defined, the terms "substantially", "essentially", "about", and "approximately" are used to describe and explain small variations. When used in connection with an event or situation, these terms can cover the case where the event or situation occurs precisely, or can also cover the case where the event or situation occurs approximately. For example, when used in connection with a numerical value, these terms can include a range of variation of less than or equal to 10% of that numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, less than or equal to ±0.05%. The term "substantially coplanar" can mean that two surfaces are arranged in the same plane within the range of micrometers, for example, arranged in the same plane within 40μm, 30μm, 20μm, 10μm, or 1μm.

[0036] It should be understood that in the exemplary embodiments of the present disclosure, when a layer or element is referred to as being on another layer or substrate, it may be that the layer or element is directly on another layer or substrate, or there may also be an intermediate layer between the layer or element and another layer or substrate. "A and B are arranged on the same layer" means that after A and B are formed into a film layer for forming a specific pattern by the same film-forming process, the layer structure is formed by using the same mask through a single patterning process.

[0037] Before describing the light therapy beauty instrument provided by the embodiments of the present disclosure, the related technologies are described as follows.

[0038] Light therapy beauty is an important branch in the beauty field, which mainly irradiates the skin with light of different wavelengths to achieve the purpose of solving various skin problems. For example, the aging of human skin is mainly due to the degradation of skin collagen. The light therapy beauty instrument can use a light source to emit red light, and use low-energy light packets to stimulate cells to perform certain functions and stimulate cell metabolism.

[0039] The application scenarios of the light therapy beauty instrument include facial beauty, hair growth on the head, hand beauty, body beauty, etc. According to different application scenarios, the shapes of the light therapy beauty instruments are also adaptively different.

[0040] In the related technologies, the light therapy beauty instrument generally uses LED lamp beads that can emit specific wavelengths as the light source. The disadvantages are that the number of LED lamp beads is small and they are distributed dispersedly, resulting in poor irradiation uniformity. For example, when the LED lamp beads are used at a short distance, since the LED lamp beads are point light sources, affected by dimensions such as the light-emitting angle, the irradiation uniformity is poor when used at a short distance. Moreover, the functions of the LED lamp beads are single. If multiple wavelengths of light need to be emitted and the requirements such as the light intensity for light therapy beauty are to be met, multiple-color LED light sources are required, which will increase the number of LED lamp beads, causing problems such as increased cost and increased volume of the light therapy beauty instrument.

[0041] To address the above issues, embodiments of the present disclosure provide a phototherapy beauty device.

[0042] The phototherapy beauty device provided by embodiments of the present disclosure includes a light-emitting panel for conforming to the irradiated part of the user. According to different application scenarios, the irradiated part of the above user may include the user's face, hands, head, or other parts of the body. Taking the irradiated part as the user's face as an example, the light-emitting panel of the phototherapy beauty device can be made in the shape of a mask.

[0043] As Figure 1 shown, in the phototherapy beauty device provided by embodiments of the present disclosure, the light-emitting panel includes a substrate 100 and a light-emitting device 200 disposed on the substrate 100. The light-emitting device 200 includes a plurality of light-emitting pixels P. Each light-emitting pixel P includes a cathode 210, a light-emitting layer 220, and an anode 230 stacked thereon, and a single light-emitting pixel P can emit monochromatic light; wherein the light-emitting colors of all the light-emitting pixels P are the same, or a plurality of the light-emitting pixels P can emit at least two monochromatic lights of different colors.

[0044] In the above solution, the light-emitting panel is used to conform to the irradiated part of the user. The light-emitting panel includes a substrate 100 and a light-emitting device 200 disposed on the substrate 100, and the light-emitting device 200 includes a plurality of light-emitting pixels P. Each light-emitting pixel P adopts a stacked structure of an anode 230, a light-emitting layer 220, and a cathode 210.

[0045] In this way, by selecting the light-emitting pixel P stacked by the anode 230, the light-emitting layer 220, and the cathode 210 as the light source of the light-emitting panel, and the entire light-emitting panel as the surface light source of the phototherapy beauty device, compared with the technical solution of using LED lamp beads as the light source in the related art, the irradiation uniformity is better when used at a short distance.

[0046] It should be noted that, in some embodiments, the light-emitting pixel may adopt a parallel placement pixel structure. The parallel placement pixel structure means that each independent light-emitting pixel is arranged in rows and columns, rather than being stacked on other different light-emitting layers. Each light-emitting pixel can be an independent light-emitting unit. When the light-emitting layer is placed in parallel, each light-emitting pixel can emit light and adjust the brightness independently without directly sharing its light flux. This design is relatively simple, easy to manufacture and assemble, and suitable for mass production; since each light-emitting pixel can operate independently, heat is more easily dissipated, and it is easier to combine and adjust different colors to meet various display requirements.

[0047] In some other embodiments, the light-emitting pixels may also adopt a vertical stacked pixel structure. The vertical stacked pixel structure means that at least two light-emitting layers are vertically stacked together. This design allows the light-emitting layers of the same or different colors to be vertically stacked, covering a wider color gamut. Moreover, more light-emitting layers can be realized in a smaller space, maximizing the use of space, improving the light-emitting efficiency of the device, and each light-emitting layer can be driven independently to meet different application requirements.

[0048] In practical applications, according to actual application requirements, the light-emitting pixels can be selected to have a parallel placement pixel structure or a vertical stacked pixel structure, and there is no limitation in this regard.

[0049] Furthermore, the light-emitting layers 220 of each of the light-emitting pixels P can use the same light-emitting material, that is, they can emit monochromatic light of the same color; the light-emitting layers 220 in each light-emitting pixel P use different light-emitting materials, that is, they can emit monochromatic light of at least two colors, without the need to additionally increase costs or the volume of the entire panel, and can meet more functional requirements.

[0050] Lights of different wavelengths have different penetration powers and different beauty effects. According to the different requirements of actual products, the light therapy beauty instrument in the embodiments of the present disclosure can emit monochromatic light or multi-color light.

[0051] Specifically, according to the different penetration powers of wavelengths, the monochromatic light emitted by the light-emitting pixel P can be selected from one of yellow light, blue light, red light, or infrared light, etc.

[0052] In some embodiments, the wavelength range of yellow light is 570 - 590 nm, and its beauty effect is to brighten and rejuvenate the skin and reduce skin inflammation; the wavelength range of blue light is 450 - 495 nm, and its beauty effect is to shrink pores, improve acne and acne; the wavelength range of red light is 590 - 620 nm, and its beauty effect is to inhibit inflammation and promote collagen production; the wavelength of infrared light is 800 - 850 nm, and its beauty effect is to dredge pores, resist aging, and promote hair growth.

[0053] Each of the light-emitting pixels P can be controlled to emit light independently or simultaneously.

[0054] It can be understood that other wavelength ranges are not excluded for the monochromatic light wavelength range of the light-emitting pixel P. For example, the monochromatic light wavelength range of the light-emitting pixel P can also be 600 - 660 nm, 820 - 880 nm, 910 - 970 nm, or 1034 - 1094 nm, etc.

[0055] Taking the light therapy beauty device with monochromatic light as an example, the emission colors of all the light-emitting pixels P can be the same, and there can be various pixel arrangement patterns, which can be regular or irregular pixel arrangement patterns. For example, in some embodiments, the pixel arrangement pattern of multiple light-emitting pixels P can be that multiple light-emitting pixels P are arranged in an array.

[0056] It should be noted that in addition to the light-emitting pixels P, the light-emitting panel further includes a pixel definition layer 300, and the pixel definition layer 300 has patterned pixel openings, and the light-emitting pixels P are located within the pixel openings 310.

[0057] Still taking the light therapy beauty device with monochromatic light as an example, the emission colors of all the light-emitting pixels P can be the same, and the orthographic projection shape of each light-emitting pixel P on the substrate 100 (in other words, the shape of the pixel opening) can be a regular or irregular shape. For example, a circle, a triangle, a quadrilateral, a hexagon, etc. Among them, the quadrilateral can include a square, a rectangle, and a rhombus.

[0058] Please refer to Figure 3 Figure (a) in [reference] shows a schematic diagram of a pixel arrangement pattern of an array of square light-emitting pixels P; please refer to Figure 3 Figures (b) and (f) in [reference] show a schematic diagram of a pixel arrangement pattern of an array of circular light-emitting pixels P; please refer to Figure 3 Figure (c) in [reference] shows a schematic diagram of a pixel arrangement pattern of an array of rhombus light-emitting pixels P; please refer to Figure 3 Figure (d) in [reference] shows a schematic diagram of a pixel arrangement pattern of an array of triangular light-emitting pixels P; please refer to Figure 3 Figure (e) in [reference] shows a schematic diagram of a pixel arrangement pattern of an array of rectangular light-emitting pixels P. However, it is not limited thereto.

[0059] In the light therapy beauty device with monochromatic light, among all the light-emitting pixels P, the organic light-emitting materials of the light-emitting layer 220 can be the same, so that the light-emitting pixels P emit monochromatic light of the same color.

[0060] According to the different sizes of the light-emitting pixels P, the pixel density (PPI, Pixels Per Inch) is also different. Generally speaking, the larger the size of the light-emitting pixel P, the lower the PPI. In some embodiments, the light-emitting pixels P in the light therapy beauty device with monochromatic light are uniformly arranged in the same size, or the light-emitting pixels P of different sizes are non-uniformly arranged.

[0061] Considering the requirements for the radiation dose and power consumption, regardless of which pixel arrangement pattern, the aperture ratio of the light-emitting pixel P should be as large as possible. Generally speaking, under the same perimeter of the pixel opening, the closer the pixel design is to a square, the larger the pixel aperture ratio.

[0062] The maximum unilateral dimension of a single light-emitting pixel P is A, where the value range of A is 30 to 80 μm, the pixel pitch between two adjacent light-emitting pixels P is 10 to 200 μm, and the pixel density (PPI) is 100 to 500.

[0063] For example, in some embodiments, taking the square light-emitting pixel P as an example, the maximum unilateral dimension of the light-emitting pixel P can be 40 μm, the pixel pitch between adjacent light-emitting pixels P can be 20 μm, and the pixel density (PPI) can be 423. For example, in some other embodiments, the maximum unilateral dimension of the light-emitting pixel P can be 60.6 μm, the pixel density (PPI) can be 151, and the pixel pitch between adjacent light-emitting pixels P can be 164 μm. In practical applications, the specific arrangement of multiple light-emitting pixels P can be reasonably set considering the illumination uniformity and the utilization rate of the master plate when manufacturing the substrate 100.

[0064] Figure 2 Shown is a schematic diagram of a beauty mask. Taking the light therapy beauty device as the beauty mask 10 or the beauty helmet as an example, in some embodiments, multiple light-emitting pixels P can be evenly arranged in each area of the beauty mask 10 and the beauty helmet, that is, covering the entire mask or the entire helmet. However, it is not limited thereto. In other embodiments, multiple light-emitting pixels P can also be dispersedly distributed in specific areas of the mask or the helmet in a targeted manner.

[0065] The beauty effect of a monochromatic light therapy beauty device is relatively single. The beauty functions produced by light sources of different wavelengths are different. In order to increase the functions of the light therapy beauty device, in some exemplary embodiments, multiple light-emitting pixels P can emit at least two monochromatic lights of different colors. Specifically, according to the different penetrations of wavelengths, the monochromatic lights emitted by multiple light-emitting pixels P can be selected from at least two of yellow light, blue light, red light, or infrared light, etc. The specific wavelength ranges of yellow light, blue light, red light, or infrared light, etc. will not be elaborated here.

[0066] In some embodiments, when multiple light-emitting pixels P can emit at least two monochromatic lights of different colors, the light-emitting device 200 includes multiple pixel units S, and each pixel unit S includes at least two light-emitting pixels P for respectively emitting different monochromatic lights.

[0067] Exemplarily, please refer to Figure 4As shown, for the phototherapy beauty device with two-color light, multiple said light-emitting pixels P can emit two kinds of monochromatic light. Each said pixel unit S can include a first light-emitting pixel P1 and a second light-emitting pixel P2 for respectively emitting different monochromatic light. The shapes of the first light-emitting pixel P1 and the second light-emitting pixel P2 can be the same or different, and the shape of either the first light-emitting pixel P1 or the second light-emitting pixel P2 can be a regular or irregular shape. For example, circular, triangular, quadrilateral, hexagonal, etc. The quadrilateral can include square, rectangle, and rhombus.

[0068] Taking the phototherapy beauty device with two-color light as an example, there can be various arrangements of the light-emitting pixels P, which can be regular or irregular pixel arrangements. For example, in some embodiments, the pixel arrangement of multiple said light-emitting pixels P can be that multiple said pixel units S are distributed in an array.

[0069] Please refer to Figure 4 Figures (a), (e), and (g) in [reference number] show a schematic diagram of a pixel arrangement of the square first light-emitting pixel P1 and the second light-emitting pixel P2 arranged in an array; please refer to Figures (b), (f), and (h) in [reference number] show a schematic diagram of a pixel arrangement of the circular first light-emitting pixel P1 and the second light-emitting pixel P2 arranged in an array; please refer to Figures (c) and (i) in [reference number] show a schematic diagram of a pixel arrangement of the rhombus first light-emitting pixel P1 and the second light-emitting pixel P2 arranged in an array; please refer to Figure (d) in [reference number] show a schematic diagram of a pixel arrangement of the triangular first light-emitting pixel P1 and the second light-emitting pixel P2 arranged in an array. However, it is not limited thereto.

[0070] In the phototherapy beauty device with two-color light, among the first light-emitting pixel P1 and the second light-emitting pixel P2, the organic light-emitting materials of the light-emitting layer 220 are different, so that the first light-emitting pixel P1 and the second light-emitting pixel P2 respectively emit different colors of monochromatic light.

[0071] In some embodiments, the light-emitting pixels P in the phototherapy beauty device with two-color light are evenly arranged with equal sizes. However, it is not limited thereto. In other embodiments, the light-emitting pixels P in the phototherapy beauty device with two-color light can also be unevenly arranged with different sizes, or different sizes of light-emitting pixels P are unevenly arranged.

[0072] The maximum unilateral size of a single said light-emitting pixel P is A, where the value range of A is 30 - 80 μm, the pixel pitch between two adjacent said light-emitting pixels P is 10 - 200 μm, and the pixel density (PPI) is 100 - 500.

[0073] For example, in some embodiments, taking the square light-emitting pixel P as an example, the maximum size of a single side of the light-emitting pixel P can be 40 μm, the pixel pitch between adjacent light-emitting pixels P can be 20 μm, and the pixel density (PPI) can be 299. In practical applications, the specific arrangement of multiple light-emitting pixels P can be reasonably set by considering the illuminance uniformity and the utilization rate of the master plate when manufacturing the substrate 100.

[0074] In some embodiments, the two-color light therapy beauty device can have three working modes. It can light up the first light-emitting pixel P1 alone, or light up the second light-emitting pixel P2 alone, or light up the first light-emitting pixel P1 and the second light-emitting pixel P2 simultaneously, with rich beauty functions.

[0075] Figure 2 Shown is a schematic diagram of a beauty mask 10. Taking the light therapy beauty device as the beauty mask 10 or the beauty helmet as an example, in some embodiments, multiple light-emitting pixels P can be evenly arranged in each area of the beauty mask 10 and the beauty helmet, that is, covering the entire mask or the entire helmet. However, it is not limited thereto. In other embodiments, multiple light-emitting pixels P can also be dispersedly distributed in specific areas of the mask or the helmet in a targeted manner.

[0076] In addition, please refer to Figure 5 As shown, for the three-color light therapy beauty device, multiple light-emitting pixels P can emit three colors of monochromatic light. Each pixel unit S can include a first light-emitting pixel P1, a second light-emitting pixel P2, and a third light-emitting pixel P3 for respectively emitting different monochromatic lights. Among them, the shapes of the first light-emitting pixel P1, the second light-emitting pixel P2, and the third light-emitting pixel P3 can be the same or different, and the shape of any one of the first light-emitting pixel P1, the second light-emitting pixel P2, and the third light-emitting pixel P3 can be a regular or irregular shape. For example, circular, triangular, quadrilateral, hexagonal, etc. Quadrilaterals can include squares, rectangles, and rhombuses.

[0077] Taking the three-color light therapy beauty device as an example, there can be various arrangements of the light-emitting pixels P, which can be regular or irregular pixel arrangements. For example, in some embodiments, the pixel arrangement of multiple light-emitting pixels P can be such that multiple pixel units S are arranged in an array.

[0078] Please refer to Figure 5 In (a), (e), and (g) of 5 is shown a schematic diagram of a pixel arrangement method of the square first light-emitting pixel P1, second light-emitting pixel P2, and third light-emitting pixel P3 arranged in an array; please refer to in (b), (h), and (i) of 5 is shown a schematic diagram of a pixel arrangement method of the circular first light-emitting pixel P1, second light-emitting pixel P2, and third light-emitting pixel P3 arranged in an array; please refer toFigure 5 As shown in (c), it is a schematic diagram of a pixel arrangement mode in which the first light-emitting pixel P1, the second light-emitting pixel P2, and the third light-emitting pixel P3 of a rhombus are arranged in an array; please refer to Figure 5 As shown in (d) and (j) in the figure, it is a schematic diagram of a pixel arrangement mode in which the first light-emitting pixel P1, the second light-emitting pixel P2, and the third light-emitting pixel P3 of a triangle are arranged in an array. However, it is not limited thereto.

[0079] In some embodiments, the three-color light therapy beauty device can have seven working modes, and can separately light up the first light-emitting pixel P1, the second light-emitting pixel P2, or the third light-emitting pixel P3, or can separately light up any two of the first light-emitting pixel P1, the second light-emitting pixel P2, and the third light-emitting pixel P3, or can also light up all the light-emitting pixels P simultaneously, with rich beauty functions.

[0080] In addition, in order to further improve the functionality of the light therapy beauty device, the light therapy beauty device provided by the embodiments of the present disclosure can also be a four-color light therapy beauty device.

[0081] In some exemplary embodiments, as Figure 6 shown, each pixel unit S in the light-emitting device 200 includes a first light-emitting pixel P1, a second light-emitting pixel P2, a third light-emitting pixel P3, and a fourth light-emitting pixel P4 for emitting light of different colors, and the pixel unit S composed of the first light-emitting pixel P1, the second light-emitting pixel P2, the third light-emitting pixel P3, and the fourth light-emitting pixel P4 can be regularly or irregularly arranged. For example, taking the figure shown as an example, the pixel unit S composed of the first light-emitting pixel P1, the second light-emitting pixel P2, the third light-emitting pixel P3, and the fourth light-emitting pixel P4 is arranged in an array.

[0082] Among the first light-emitting pixel P1, the second light-emitting pixel P2, the third light-emitting pixel P3, and the fourth light-emitting pixel P4, the organic light-emitting materials of the light-emitting layer 220 are different, so that the first light-emitting pixel P1, the second light-emitting pixel P2, the third light-emitting pixel P3, and the fourth light-emitting pixel P4 can respectively emit monochromatic light of different colors.

[0083] In some embodiments, the light-emitting pixels P in the four-color light therapy beauty device are evenly arranged with equal sizes. However, it is not limited thereto. In other embodiments, the light-emitting pixels P in the four-color light therapy beauty device can also be unevenly arranged with different sizes, or, the light-emitting pixels P with different sizes are unevenly arranged.

[0084] The maximum single-side size of a single light-emitting pixel P is A, where the value range of A is 30 to 80 μm, the pixel pitch between two adjacent light-emitting pixels P is 10 to 200 μm, and the pixel density (PPI) is 100 to 500.

[0085] For example, in some embodiments, taking the square light-emitting pixel P as an example, the maximum single-side size of the light-emitting pixel P can be 40 μm, the pixel pitch between adjacent light-emitting pixels P can be 20 μm, and the pixel density (PPI) can be 211. In practical applications, the specific arrangement of multiple light-emitting pixels P can be reasonably set by considering the illuminance uniformity and the utilization rate of the master plate when manufacturing the substrate 100.

[0086] In some embodiments, the three-color light therapy beauty device can have fourteen working modes, and can separately light up the first light-emitting pixel P1, the second light-emitting pixel P2, the third light-emitting pixel P3 or the third light-emitting pixel P3, or can also separately light up any two or three of the first light-emitting pixel P1, the second light-emitting pixel P2 and the third light-emitting pixel P3, or can also light up all the light-emitting pixels P simultaneously, with rich beauty functions.

[0087] Figure 10 The figure shows a schematic diagram of a beauty mask 10. Taking the light therapy beauty device as the beauty mask 10 or the beauty helmet as an example, in some embodiments, multiple light-emitting pixels P can be evenly arranged in each area of the beauty mask 10 and the beauty helmet, that is, covering the entire mask or the entire helmet. However, it is not limited thereto. In other embodiments, multiple light-emitting pixels P can also be dispersedly distributed in specific areas of the mask or the helmet in a targeted manner.

[0088] In addition, please refer to Figure 6 As shown, for the four-color light therapy beauty device, multiple light-emitting pixels P can emit four kinds of monochromatic light. Each pixel unit S can include a first light-emitting pixel P1, a second light-emitting pixel P2, a third light-emitting pixel P3 and a fourth light-emitting pixel P4 for respectively emitting different monochromatic light. The shapes of the first light-emitting pixel P1, the second light-emitting pixel P2, the third light-emitting pixel P3 and the fourth light-emitting pixel P4 can be the same or different, and the shape of any one of the first light-emitting pixel P1, the second light-emitting pixel P2, the third light-emitting pixel P3 and the fourth light-emitting pixel P4 can be a regular or irregular shape. For example, circular, triangular, quadrilateral, hexagonal, etc. The quadrilateral can include square, rectangle and rhombus.

[0089] Taking the four-color light phototherapy beauty device as an example, the arrangement of the light-emitting pixels P can be various, which can be regular or irregular pixel arrangement methods. For example, in some embodiments, the pixel arrangement method of the plurality of the light-emitting pixels P can be that the plurality of the pixel units S are arranged in an array.

[0090] Please refer to Figure 6 In (a), (e), (g), and (k) in it, a schematic diagram of a pixel arrangement method of the array arrangement of the first light-emitting pixel P1, the second light-emitting pixel P2, the third light-emitting pixel P3, and the fourth light-emitting pixel P4 of a square is shown; Please refer to Figure 6 In (b), (f), (h), and (l) in it, a schematic diagram of a pixel arrangement method of the array arrangement of the first light-emitting pixel P1, the second light-emitting pixel P2, the third light-emitting pixel P3, and the fourth light-emitting pixel P4 of a circle is shown; Please refer to Figure 6 In (c) and (i) in it, a schematic diagram of a pixel arrangement method of the array arrangement of the first light-emitting pixel P1, the second light-emitting pixel P2, the third light-emitting pixel P3, and the fourth light-emitting pixel P4 of a rhombus is shown; Please refer to Figure 6 In (d) and (j) in it, a schematic diagram of a pixel arrangement method of the array arrangement of the first light-emitting pixel P1, the second light-emitting pixel P2, the third light-emitting pixel P3, and the fourth light-emitting pixel P4 of a triangle is shown. However, it is not limited thereto.

[0091] In the above embodiments, the number of the light-emitting pixels P of each color light in the four-color light phototherapy beauty device is roughly the same. However, in actual application scenarios, some design requirements of the phototherapy beauty device may take a specific beauty function as the main function requirement and also take into account other beauty functions. For example, meeting the functional requirements of the user for skin management and infrared hair growth as the main function requirements, while also taking into account other functional requirements.

[0092] In order to achieve the above functional requirements, in some embodiments, as Figure 7 shown, the plurality of the light-emitting pixels P include at least one first pixel unit S1 and at least one second pixel unit S2. The first pixel unit S1 includes a first light-emitting pixel P1, a second light-emitting pixel P2, and a third light-emitting pixel P3 that respectively emit different monochromatic lights. The second pixel unit S2 includes a first light-emitting pixel P1, a second light-emitting pixel P2, and a fourth light-emitting pixel P4 that respectively emit different monochromatic lights. The first pixel unit S1 and the second pixel unit S2 are arranged in an array.

[0093] In such a pixel arrangement, the number of the first light-emitting pixels P1 and the second light-emitting pixels P2 is significantly more than that of the third light-emitting pixels P3 and the fourth light-emitting pixels P4. The light emitted by the first light-emitting pixels P1 and the second light-emitting pixels P2 can be used to achieve the main beauty function, while the light emitted by the third light-emitting pixels P3 and the fourth light-emitting pixels P4 is used to achieve the supplementary beauty function.

[0094] For example, the wavelength of the monochromatic light emitted by the first light-emitting pixel P1 is 570 - 590 nm, and the first light-emitting pixel P1 can emit yellow light; the wavelength of the monochromatic light emitted by the second light-emitting pixel P2 is 590 - 620 nm, and the first light-emitting pixel P1 can emit red light; the wavelength of the monochromatic light emitted by the third light-emitting pixel P3 is 450 - 495 nm, and the third light-emitting pixel P3 can emit blue light; the wavelength of the monochromatic light emitted by the fourth light-emitting pixel P4 is 800 - 850 nm, and the fourth light-emitting pixel P4 can emit infrared light.

[0095] In this way, in the first pixel unit S1, there is 1 yellow first light-emitting pixel P1 and 1 red second light-emitting pixel P2 respectively arranged, and there is 1 blue third light-emitting pixel P3 arranged. In the first pixel unit S1, there is 1 yellow first light-emitting pixel P1 and 1 red second light-emitting pixel P2 respectively arranged, and there is 1 infrared fourth light-emitting pixel P4 arranged. The first pixel unit S1 and the second pixel unit S2 are arranged in an array, so that red and yellow light can achieve the main beauty function, realize brightening and tendering the skin, eliminate skin inflammation, and have a mutually promoting effect. The infrared fourth light-emitting pixel P4 can achieve the beauty function of improving cell metabolism, and the blue third pixel can achieve the function of removing acne.

[0096] In some embodiments, as Figure 7 shown, in the pixel array formed by the first pixel unit S1 and the second pixel unit S2, multiple first pixel units S1 are arranged in M rows, and multiple second pixel units S2 are arranged in N rows. The M rows of first pixel units S1 and the N rows of second pixel units S2 are alternately arranged in the column direction; wherein, the third light-emitting pixels P3 and the fourth light-emitting pixels P4 in the adjacent two rows of pixel units S are alternately arranged in the column direction, and the first light-emitting pixels P1 and the second light-emitting pixels P2 in the adjacent two rows of pixel units S are alternately arranged in the column direction. Such a pixel arrangement can improve the distribution uniformity of each monochromatic light.

[0097] It can be understood that the pixel arrangement of the pixel array formed by the first pixel unit S1 and the second pixel unit S2 is not limited thereto. For example, in other embodiments, it may also be: the first light-emitting pixels P1 in adjacent two rows of pixel units S are arranged along the column direction, the second light-emitting pixels P2 in adjacent two rows of pixel units S are arranged along the column direction, and the third light-emitting pixels P3 and the fourth light-emitting pixels P4 in adjacent two rows of pixel units S are alternately arranged along the column direction.

[0098] In this embodiment, the shapes of the respective light-emitting pixels P may be the same or different, and the shapes of the respective light-emitting pixels P may be regular or irregular shapes. For example, a circle, a triangle, a quadrilateral, a hexagon, etc. The quadrilateral may include a square, a rectangle, and a rhombus.

[0099] Considering the requirements for the radiation amount and power consumption, regardless of which pixel arrangement method, the aperture ratio of the light-emitting pixel P should be as large as possible. Taking the pixel pitch of 164 μm as an example, if the pixel aperture shape of the light-emitting pixel P is a circle, the pixel aperture area of the circular light-emitting pixel P with a diameter r of 30.3 μm is A1 = π * r^2 = 2882.8 μm^2; if the pixel aperture shape of the light-emitting pixel P is a regular hexagon, the pixel aperture area of the regular hexagon light-emitting pixel P is A2 = 2 * 1.73 * r^2 = 3176.6 μm^2. A2 is increased by about 10.3% compared with A1. Therefore, taking the figure shown as an example, in some embodiments, the shape of each light-emitting pixel P may be a regular hexagon. However, it is not limited thereto.

[0100] In addition, taking the light therapy beauty instrument as the beauty mask 10 or the beauty helmet, etc. as an example, the light-emitting panel needs to fit the body part of the user and generally has a smooth concave-convex transition surface. Compared with the circular light-emitting pixel P, when the hexagonal, quadrilateral or triangular light-emitting pixels P are arranged on the light-emitting panel, the light-emitting pixel P arrangement structure in the corresponding area of the arc surface is easier to adapt to the smooth concave-convex transition surface, so that the light-emitting panel fits the body part of the user better, and the pixel arrangement area is larger and the irradiation effect is better.

[0101] In this embodiment, the maximum single-side size of a single light-emitting pixel P is A, where the value range of A is 30-80 μm, the pixel pitch between two adjacent light-emitting pixels P is 10-200 μm, and the pixel density (PPI) is 100-500.

[0102] For example, in some embodiments, taking the light-emitting pixel P in the shape of a regular hexagon as an example, considering the specific arrangement of multiple light-emitting pixels P, the illuminance uniformity and the utilization rate of the mother board when manufacturing the substrate 100 can be taken into account. The maximum single-side size of the light-emitting pixel P can be 60.6 micrometers, the pixel density (PPI) can be 151, and the pixel pitch between adjacent light-emitting pixels P can be 164 μm. However, it is not limited thereto.

[0103] In addition, as Figure 8 shown, in some other embodiments, in the pixel array formed by the first pixel unit S1 and the second pixel unit S2, the first pixel unit S1 and the second pixel unit S2 are arranged alternately in any row of pixel units S, and the light-emitting pixels P that emit the same color light in adjacent rows of pixel units S are offset in the row direction. In this way, the distribution uniformity of each monochromatic light can be improved.

[0104] It can be understood that the pixel arrangement of the pixel array formed by the first pixel unit S1 and the second pixel unit S2 is not limited thereto. For example, in other embodiments, it can also be that the light-emitting pixels P that emit the same color light in adjacent rows of pixel units S are directly opposite in the row direction.

[0105] In addition, as Figure 8 shown, in some exemplary cases, any adjacent first pixel unit S1 and second pixel unit S2 in the same row share the same first light-emitting pixel P1 and / or share the same second light-emitting pixel P2. However, it is not limited thereto.

[0106] And, please refer to Figure 8 shown, in some embodiments, when the shape of the light-emitting pixel P is triangular, multiple light-emitting pixels P in the same row can be arranged in an alternating manner of regular triangular light-emitting pixels P and inverted triangular light-emitting pixels P. However, it is not limited thereto.

[0107] In addition, in some embodiments of the present disclosure, the light-emitting layer 220 can be an organic light-emitting layer. The light-emitting device 200 can be an OLED light-emitting device 200.

[0108] In some embodiments, by way of example, as Figure 9 shown, the light-emitting device 200 is a bottom-emitting light-emitting device 200, where the cathode 210, the light-emitting layer 220, and the anode 230 are stacked in sequence from the side far from the substrate 100 to the side close to the substrate 100. The substrate 100 is a transparent substrate, and the anode 230 is a transparent anode, and the cathode 210 is a reflective cathode.

[0109] The bottom-emitting light-emitting device 200 uses a transparent substrate 100 (such as glass or transparent plastic), allowing light to be directly emitted from the bottom, providing a higher light transmittance, which enables the bottom-emitting light-emitting device 200 to achieve higher brightness. Moreover, the manufacturing process of the bottom-emitting light-emitting device 200 is relatively simple. Since the bottom-emitting light-emitting device 200 does not require a complex optical structure to guide light, the manufacturing process generally includes depositing organic materials and electrodes, simplifying the production process. Also, in the OLED light-emitting device 200, the Lambertian distribution characteristic can affect the light emission and visual effect. The bottom-emitting light-emitting device 200 has a light-emitting characteristic closer to the Lambertian distribution, making the light brightness more uniform when observed from different viewing angles, improving the illuminance uniformity, and being more conducive to giving full play to the advantage of high uniformity of the OLED device. It can be understood that in other embodiments, the light-emitting device 200 may also be a top-emitting light-emitting device 200.

[0110] In addition, in some embodiments, the substrate 100 may be a flexible substrate to adapt to the shape requirements of conforming to the user's body parts such as a face mask or a helmet.

[0111] In addition, in some embodiments, the stacked structure of the light-emitting pixel P may further include at least one film layer among a hole transport layer, a hole injection layer, an electron blocking layer, an electron transport layer, a hole blocking layer, and an electron injection layer.

[0112] For example, please refer to Figure 10 As shown, in some embodiments, the stacked structure of the light-emitting pixel P includes an anode (ITO) 230, a hole transport layer (HT) 240, a recombination layer (RH) 221, a host layer (HB) 222 of the organic light-emitting layer, an electron transport layer (ET) 270, an electron injection layer (EIL) 280, and a cathode (AL) 210 stacked in sequence. Among them, the recombination layer 221 is a region where holes and electrons recombine, and is usually a part of the light-emitting layer. The light-emitting layer 220 may include the host layer 222, and the host layer 222 is a layer for supporting a light-emitting material (usually referred to as a luminescent agent or a dopant). The host layer 222 can improve the light-emitting efficiency and color stability. However, the stacked structure of the light-emitting pixel P is not limited thereto.

[0113] The following points need to be explained:

[0114] (1) The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0115] (2) For clarity, in the drawings used to describe the embodiments of the present disclosure, the thickness of layers or regions is enlarged or reduced, that is, these drawings are not drawn to actual scale. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, the element can be directly "on" or "under" the other element or intervening elements may be present.

[0116] (3) Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0117] The above are only the specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A light therapy beauty device, characterized in that, It includes a light-emitting panel for fitting to the part of the user to be irradiated. The light-emitting panel includes a substrate and light-emitting devices provided on the substrate. The light-emitting devices include a plurality of light-emitting pixels. Each light-emitting pixel includes a cathode, a light-emitting layer, and an anode stacked, and a single light-emitting pixel can emit monochromatic light. Among them, all the light-emitting pixels have the same light-emitting color, or at least two monochromatic lights of different colors can be emitted by a plurality of the light-emitting pixels.

2. The light therapy beauty instrument according to claim 1, wherein When all the light-emitting pixels have the same light-emitting color, a plurality of the light-emitting pixels are arranged in an array. When at least two monochromatic lights of different colors can be emitted by a plurality of the light-emitting pixels, the light-emitting device includes a plurality of pixel units. Each pixel unit includes at least two of the light-emitting pixels for respectively emitting different monochromatic lights, and a plurality of the pixel units are arranged in an array.

3. The phototherapy beauty instrument according to claim 2, wherein, The plurality of light-emitting pixels include at least one first pixel unit and at least one second pixel unit. The first pixel unit includes a first light-emitting pixel, a second light-emitting pixel, and a third light-emitting pixel for respectively emitting different monochromatic lights. The second pixel unit includes a first light-emitting pixel, a second light-emitting pixel, and a fourth light-emitting pixel for respectively emitting different monochromatic lights. The first pixel unit and the second pixel unit are arranged in an array.

4. The light therapy beauty instrument according to claim 3, wherein In the pixel array formed by the first pixel unit and the second pixel unit, a plurality of the first pixel units are arranged in M rows, and a plurality of the second pixel units are arranged in N rows. The M rows of first pixel units and the N rows of second pixel units are alternately arranged in the column direction. Among them, the third light-emitting pixel and the fourth light-emitting pixel in adjacent two rows of pixel units are alternately arranged in the column direction, and the first light-emitting pixel and the second light-emitting pixel in adjacent two rows of pixel units are alternately arranged in the column direction; or, the first light-emitting pixel in adjacent two rows of pixel units is arranged in the column direction, the second light-emitting pixel in adjacent two rows of pixel units is arranged in the column direction, and the third light-emitting pixel and the fourth light-emitting pixel in adjacent two rows of pixel units are alternately arranged in the column direction.

5. The light therapy beauty device according to claim 3, wherein In the pixel array formed by the first pixel unit and the second pixel unit, the first pixel unit and the second pixel unit are alternately arranged in sequence in any row of pixel units. Among them, the light-emitting pixels emitting the same color light in adjacent two rows of pixel units are directly opposite in the row direction; or, the light-emitting pixels emitting the same color light in adjacent two rows of pixel units are relatively offset in the row direction.

6. The light therapy beauty device according to claim 5, characterized in that The first pixel unit and the second pixel unit arranged adjacent to each other in the same row share the same first light-emitting pixel and / or share the same second light-emitting pixel.

7. The phototherapy beauty instrument according to claim 3, wherein, The wavelength of the monochromatic light emitted by the first light-emitting pixel is 570 - 590 nm; the wavelength of the monochromatic light emitted by the second light-emitting pixel is 590 - 620 nm; the wavelength of the monochromatic light emitted by the third light-emitting pixel is 450 - 495 nm; the wavelength of the monochromatic light emitted by the fourth light-emitting pixel is 800 - 850 nm.

8. The light therapy beauty device according to claim 1, characterized in that, The shape of the orthographic projection of a single said light-emitting pixel on the substrate is circular, triangular, quadrilateral, or hexagonal.

9. The light therapy beauty device according to claim 1, wherein, The light-emitting device is a bottom-emitting light-emitting device, wherein the cathode, the light-emitting layer, and the anode are sequentially stacked from the side far from the substrate to the side close to the substrate, the substrate is a transparent substrate, the anode is a transparent anode, and the cathode is a reflective cathode.

10. The light therapy beauty device according to claim 1, characterized in that, The maximum single-side dimension in a single said light-emitting pixel is A, where the value range of A is 30 to 80 μm, the pixel pitch between two adjacent said light-emitting pixels is 10 to 200 μm, and the pixel density is 100 to 500.

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