Neck phototherapy device

Abstract

A neck phototherapy device is disclosed. The neck phototherapy device comprises a supporting film, at least one flexible OLED light-emitting panel, a driving device and a decoration part. The supporting film is made of elastic fabric, and the side, away from the neck, of the supporting film presents skin color. The flexible OLED light-emitting panel is integrated on the supporting film, has a light-emitting surface, emits light towards one side of the neck, and emits at least one light with peak wavelength of 600-1400 nm; the flexible OLED light-emitting panel is electrically connected with the driving device; the decorative part is arranged on the side, away from the neck, of the supporting film. The neck phototherapy device has the function of protecting privacy, and is just like being worn with an ornament when being worn. The flexible OLED panel can be tightly attached to the skin of the neck through the elastic fabric, the luminous efficiency can be fully utilized, and the overall treatment effect is greatly improved.

Description

Technical Field

[0001] The present invention relates to a neck phototherapy device, and more specifically, to a neck phototherapy device having a flexible OLED light-emitting panel, an elastic supporting film, and a decorative component. Background Art

[0002] In the mid-to-late 20th century, technologies such as low light laser treatment and photobiomodulation (PBM) appeared, both of which used light as a means of treating diseases in the medical field (Michael R. Hamblin, Ying-ying Huang, Handbook of Photomedicine, CRC Press). In recent years, many studies have shown that red light to near-infrared light can help promote the regeneration of tissues such as collagen and skin cells, and can be used in anti-wrinkle beauty, promoting wound healing, removing spots and scars, and other fields (Chan Hee Nam et al., Dermatologic Surgery, 2017, 43: 371-380; Daniel Barolet, Semin Cutan Med Surg, 2008, 27: 227-238; Yongmin Jeon, Adv. Mater. Technol. 2018, 1700391). With the rapid development of micro-light therapy and photobiomodulation technology, more and more phototherapy products have emerged, especially wearable phototherapy products, such as phototherapy masks, phototherapy hair growth caps, phototherapy shaping clothing, eye phototherapy devices, etc., which have become the ideal home beauty, body or health care products for more and more people.

[0003] The OLED light source used in the phototherapy product can emit light with a peak wavelength between 400-1400nm, preferably red light and near-infrared light with a peak wavelength between 600-970nm. The light in this band has the effects of anti-wrinkle, skin regeneration, freckle removal, and even anti-inflammatory (such as styes and acne), wound healing, and scar reduction (Daniel Barolet, Semin Cutan Med Surg, 27: 227-238, 2008). The OLED light source in the phototherapy product can also emit 400-500nm blue light, which has the effect of sterilization and anti-inflammatory, and reducing wound infection. The preparation of red light, near-infrared or blue light OLED devices is well known to people in the industry and will not be repeated here. In some phototherapy products that need to achieve multiple therapeutic effects, multiple different light bands can also be used for treatment at the same time, for example, using 400-500nm blue light to achieve the effect of anti-inflammatory and sterilization, and using 600-1400nm red light and near-infrared light to promote wound healing, stimulate cell regeneration, etc.

[0004] A variety of light therapy devices for anti-aging and skin tightening have been used in beauty salons, such as commercial LED masks on the market. These products arrange LED chips in an array on the back of a plastic mask. LEDs are high-intensity point light sources, which are usually accompanied by heat generation. Therefore, LED light sources generally integrate heat sinks to reduce the temperature, and these LEDs must be arranged at a certain distance when used in an array to dissipate heat. This leads to three disadvantages of LED masks. First, this mask is very thick and heavy, because it must be equipped with a heat sink for heat dissipation considerations, and it must be a certain distance from the face for safety. Some of these masks weigh up to 1.6 kilograms and are less comfortable to wear on the face. Second, in the array arrangement, the LEDs are all independent in a certain position, with spacing between them, which leads to uneven light emission. In beauty treatments, such uneven lighting may lead to uneven skin color or require multiple treatments in different areas. Finally, in order to cover the entire face, a large number of LEDs are required, sometimes up to 200 chips, which increases the difficulty of LED screening, assembly and maintenance.

[0005] On the contrary, OLED is a surface light source, a cold light source, not dazzling, and has the characteristics of being light and thin, making it very easy to integrate into a flexible substrate, and therefore it has become an ideal light source choice for wearable applications. Patent applications related to this have also covered various fields in recent years. Application CN203694423U and the inventor's previous application CN109173071A mentioned the use of OLED to prepare phototherapy masks; the inventor's previous patent applications CN111481833A, CN111514466A, CN111544774A and CN112754764A respectively mentioned the use of OLED to prepare hair growth caps, phototherapy shaping clothes, phototherapy socks and phototherapy band-aids. It can be seen that phototherapy products using OLED as a light source have broad market prospects and have received widespread attention. Especially in beauty products, products for neck treatment have always been very challenging.

[0006] At present, with the popularity of mobile phones and computers, people stay away from outdoor sports. The long-term bowing of the head has led to an increasing incidence of cervical spondylosis, which affects health. On the other hand, due to the position of the neck in the human body and its special function, the neck skin is more prone to wrinkles. The long-term bowing of modern people makes this situation more serious. The maintenance of the neck is often easily neglected, which also leads to the neck problem not being controlled in the first place, and gradually evolving into a "chronic disease". Therefore, the treatment of neck skin problems has become particularly urgent.

[0007] At present, all the phototherapy products for the neck on the market use LED lamp beads as light sources, such as Figure 4aAs shown in (https: / / detail.1688.com / offer / 598602729664.html), it has a hard shell and cannot be adjusted according to the size of the user's neck during use. The treatment effect is limited, the comfort is insufficient and lacks aesthetics. It also has the disadvantages of the above-mentioned LED light therapy products; the LED photorejuvenation device sold by CurrentBody, such as Figure 4b As shown (https: / / www.haitao.com / share / 2265546.html), there are 48 lamp beads and the weight reaches 266 grams. It is bulky in appearance, not comfortable enough, cannot be worn at any time, lacks aesthetics, and has all the disadvantages of the above-mentioned LED light therapy products.

[0008] The inventor's previous patent application CN115671564A disclosed an OLED phototherapy veil that can cover the neck, but the phototherapy veil does not fit completely on the neck and the treatment effect is limited.

[0009] CN211884990U and CN212141169U disclose a phototherapy skin care device, which can be used for the neck, but its material is a flexible material, and no instruction is given about elastic fabrics. The elastic fabric can be adjusted in size according to the size of the user's neck to fit the neck better and achieve better treatment effects.

[0010] Because traditional neck phototherapy devices often only achieve a single phototherapy effect, and there are still problems such as inconvenience for users to move when using them, the size cannot be adjusted according to the size of the user's neck when used, the comfort is not enough, and they cannot be worn at any time, lack aesthetics, and reduce the user experience. Summary of the invention

[0011] The present invention aims to provide a neck phototherapy device integrating a flexible OLED light-emitting panel as a light source to at least solve some of the above problems.

[0012] According to one embodiment of the present invention, a neck phototherapy device is disclosed, comprising:

[0013] A supporting film, at least one flexible OLED light-emitting panel, a driving device, and a decorative component;

[0014] The support film has skin color on the side away from the neck;

[0015] The supporting film is made of elastic fabric;

[0016] The flexible OLED light-emitting panel is integrated on the supporting film, and the flexible OLED light-emitting panel has a light-emitting surface and emits light toward one side of the neck;

[0017] The flexible OLED light-emitting panel emits light with at least one peak wavelength in the range of 600-1400 nm;

[0018] The flexible OLED light-emitting panel is electrically connected to the driving device;

[0019] The decorative component is arranged on the side of the supporting film away from the neck.

[0020] According to one embodiment of the present invention, the elastic fabric is selected from one or more of spandex, stretch cotton, nylon, rubber, Lycra, and stretch silk.

[0021] According to an embodiment of the present invention, the flexible OLED light-emitting panel emits light having at least two emission peak wavelengths, wherein the first emission peak wavelength is between 600-750 nm, and the second emission peak wavelength is between 751-1400 nm.

[0022] According to an embodiment of the present invention, the flexible OLED light emitting panel emits light having at least two emission peak wavelengths, wherein the first emission peak wavelength is between 630-750 nm.

[0023] According to an embodiment of the present invention, the flexible OLED light emitting panel emits light having at least two emission peak wavelengths, wherein the first emission peak wavelength is between 650-750 nm.

[0024] According to an embodiment of the present invention, the flexible OLED light-emitting panel emits light of a second emission peak wavelength, and the emission peak wavelength thereof is between 751-970 nm.

[0025] According to an embodiment of the present invention, the flexible OLED light-emitting panel emits light of a second emission peak wavelength, and the emission peak wavelength thereof is between 751-900 nm.

[0026] According to one embodiment of the present invention, the supporting film can be unfolded into a plane, and comprises fixing devices, wherein the fixing devices are arranged at two ends of the supporting film.

[0027] According to one embodiment of the present invention, the fixing device comprises one or more of Velcro, buckles, buttons, zippers, and straps.

[0028] According to one embodiment of the present invention, the supporting membrane is tubular or cylindrical.

[0029] According to one embodiment of the present invention, the flexible OLED light-emitting panel is at a certain distance from the upper and lower edges of the supporting film, and the flexible OLED light-emitting panel covers at least 50% of the surface area of ​​the front side of the neck.

[0030] According to one embodiment of the present invention, the flexible OLED light-emitting panel is at a certain distance from the upper and lower edges of the supporting film, and the flexible OLED light-emitting panel covers at least 70% of the surface area of ​​the front side of the neck.

[0031] According to one embodiment of the present invention, the flexible OLED light-emitting panel is at a certain distance from the upper and lower edges of the supporting film, and the flexible OLED light-emitting panel covers at least 80% of the surface area of ​​the front side of the neck.

[0032] According to an embodiment of the present invention, the decorative component is an ornament or a connecting device used to connect with an ornament.

[0033] According to one embodiment of the present invention, the connecting device used to connect with the decoration includes one or more of Velcro, buckles, buttons, zippers, and straps.

[0034] According to one embodiment of the present invention, the decorative item comprises one or more of a neck gaiter, a scarf, a bow tie, a necklace, a collar, a tie, a neck guard, a neck cover, a natural or artificial jewelry, or an artificial flower ornament.

[0035] According to one embodiment of the present invention, it comprises a skin-friendly layer, and the skin-friendly layer is arranged on the light-emitting surface of the flexible OLED light-emitting panel facing the neck.

[0036] According to one embodiment of the present invention, the material of the skin-friendly layer is selected from one or more of medical silicone, cotton, linen, and gauze.

[0037] According to one embodiment of the present invention, the material of the skin-friendly layer is selected from medical silicone.

[0038] According to one embodiment of the present invention, the electric drive device includes one or more of a power source, a wireless charging device, a Bluetooth communication device, a chip, a lead, a circuit board, and a switch.

[0039] According to an embodiment of the present invention, the OLED panel comprises an OLED device, and the OLED device is a bottom-emitting device or a top-emitting device.

[0040] According to an embodiment of the present invention, the OLED panel comprises an OLED device, and the OLED device is a top-emitting device.

[0041] According to an embodiment of the present invention, the OLED panel comprises an OLED device, and the OLED device is a single-layer device or a stacked-layer device.

[0042] According to an embodiment of the present invention, the OLED panel comprises an OLED device, and the OLED device is a stacked device.

[0043] According to an embodiment of the present invention, the flexible OLED light-emitting panel is driven by direct current.

[0044] According to an embodiment of the present invention, the electrical connection is one or more of thin film metal, transparent conductive material, and FPC lead.

[0045] The neck phototherapy device disclosed in the present application uses skin-colored elastic fabric as support, on which a flexible OLED light-emitting panel that emits red light, deep red light and / or near-infrared light is integrated, and emits light toward human skin. A decorative component is provided on the other side of the elastic fabric. The skin-colored support film plays a role in invisibility and privacy protection, so that when the user wears it, it looks like only wearing a decoration from the outside. The elastic fabric also allows the OLED panel to fit closely to the neck skin. Combined with the characteristics of the OLED surface light source, it can make full use of the luminous efficiency, so that the overall treatment effect is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1a-1c It is a schematic diagram of the structure of a single-layer OLED device.

[0047] Figure 2 It is a schematic diagram of the structure of a stacked OLED device.

[0048] Figure 3a-3d It is a cross-sectional schematic diagram of an OLED light-emitting panel.

[0049] Figure 4a-4b This is a physical picture of a neck phototherapy device in the prior art.

[0050] Figure 5a-5c It is a schematic diagram of the structure of an OLED light-emitting panel.

[0051] Figure 6 It is a schematic diagram of the cross-sectional structure of a neck phototherapy device with a flexible OLED light-emitting panel.

[0052] Figure 7 It is a schematic diagram of the cross-sectional structure of another neck phototherapy device with a flexible OLED light-emitting panel. DETAILED DESCRIPTION

[0053] As used herein, "top" means farthest from the substrate, while "bottom" means closest to the substrate. In the case where a first layer is described as being "disposed on" a second layer, the first layer is disposed farther from the substrate. Conversely, in the case where a first layer is described as being "disposed under" a second layer, the first layer is disposed closer to the substrate. Unless it is specified that the first layer is "in contact with" the second layer, other layers may exist between the first and second layers. For example, the cathode may be described as being "disposed on" the anode even if various organic layers are present between the cathode and the anode.

[0054] As used herein, the term "OLED device" includes an anode (layer), a cathode (layer), and one or more organic layers disposed between the anode (layer) and the cathode (layer). An "OLED device" can be bottom-emitting (bottom-emitting), i.e., emitting light from the anode side, or top-emitting (top-emitting), i.e., emitting light from the cathode side, or a transparent device, i.e., emitting light from both the anode and the cathode.

[0055] In this context, the anode (layer) and cathode (layer) of the same "OLED device" are not in the same plane.

[0056] As used herein, the term "OLED light-emitting panel" includes a substrate, an anode (layer), a cathode (layer), one or more organic layers arranged between the anode (layer) and the cathode (layer), an encapsulation layer, and at least one anode contact and at least one cathode contact extending outside the encapsulation layer for external access.

[0057] As used herein, the term "encapsulation layer" may be a thin film encapsulation with a thickness of less than 100 micrometers, which includes placing one or more thin films directly on the device, or may also be a cover glass adhered to a substrate.

[0058] As used herein, the term "flexible printed circuit" (FPC) refers to any flexible substrate coated with any one or a combination of the following, including but not limited to: conductive lines, resistors, capacitors, inductors, transistors, micro-electromechanical systems (MEMS), etc. The flexible substrate of the flexible printed circuit can be plastic, thin glass, thin metal foil coated with an insulating layer, fabric, leather, paper, etc. A flexible printed circuit board is generally less than 1 mm thick, and more preferably less than 0.7 mm thick.

[0059] As used herein, the term "light extraction layer" may refer to a light diffusion film, or other microstructures with light extraction effect, or a thin film coating with light outcoupling effect. The light extraction layer may be disposed on the surface of the substrate of the OLED, or may be disposed at other suitable locations, such as between the substrate and the anode, or between the organic layer and the cathode, between the cathode and the encapsulation layer, on the surface of the encapsulation layer, and so on.

[0060] As used herein, the term "independent drive" means that the operating points of two or more light-emitting panels (or OLED devices) are controlled separately. Although these light-emitting panels (or OLED devices) can be connected to the same controller or power line, there can be circuits to divide the drive route and power each panel (or OLED device) without affecting each other.

[0061] As used herein, the term "light emitting region" refers to the portion of the planar area where the anode, organic layer, and cathode overlap together, excluding light extraction effects.

[0062] As used herein, the term "light-emitting surface" refers to the side of a light source that emits light. For example, if the light source comprises a bottom-emitting OLED light-emitting panel, then the "light-emitting surface" includes the side of the substrate away from the anode. If it is a top-emitting device, then the "light-emitting surface" includes the side of the encapsulation layer away from the cathode.

[0063] As used herein, the term "single-layer device" refers to a device having a light-emitting layer (or multiple continuous light-emitting layers) and a single set of matching hole and electron transport layers between a pair of anodes and cathodes. Such a device having a single light-emitting layer (or multiple continuous light-emitting layers) and its matching transport layers is a "single-layer device".

[0064] As used herein, the term "stacked device" refers to a device structure having multiple light-emitting layers between a pair of anodes and cathodes, and each light-emitting layer has its own independent hole transport layer and electron transport layer. Each light-emitting layer and its matching hole transport layer and electron transport layer constitute a light-emitting unit. These light-emitting units are connected by a charge generation layer. A device having such multiple light-emitting units is called a "stacked device."

[0065] As used herein, the term "front of the neck" refers to the neck area on one side of the face, with the line from the back of the ears to the neck as the boundary when the face is facing forward. Conversely, the "back of the neck" refers to the neck area on one side of the face, with the line from the back of the ears to the neck as the boundary when the face is facing forward.

[0066] Herein, "the support film presents skin color on the side away from the neck" means that the color of the support film on the side away from the neck is close to or presents the color of the skin, and people with different skin colors can choose according to their own skin color.

[0067] In this article, "decorations" refer to things that can be used for decoration and beautification, and users can choose according to their needs and preferences. Decorative items include but are not limited to neck scarves, scarves, bow ties, necklaces, collars, ties, neck guards, neck covers, natural or artificial jewelry, and artificial flower ornaments. The materials used for decorative items include but are not limited to silk, satin, chiffon, cloth, lace, decorative metal, and natural or artificial leather.

[0068] As used herein, elastic fabric refers to a fabric that can reach a length of more than 1.3 times that of the non-stretched fabric when stretched. If the length can reach more than 4 times that of the non-stretched fabric when stretched, it is called "high-elastic fabric", which is also a type of elastic fabric. Elastic fabric can be a fabric whose fiber itself has elasticity or a fabric that has elasticity due to the mixing of elastic fibers, including but not limited to polyamide fiber (nylon or nylon), polyurethane fiber (spandex), polyester fiber (polyester), lycra fiber, rubber band, stretch cotton, stretch silk, etc. Elastic fabric can also be a non-elastic fabric but with a specific knitting method to form an overall stretchable fabric, such as knitted fabrics, which have a certain degree of elasticity.

[0069] A typical single-layer OLED device 100 is shown in FIG. Figure 1a As shown. The OLED device 100 includes an anode layer 101, a hole injection layer (HIL) 102, a hole transport layer (HTL) 103, an electron blocking layer (EBL) 104, an emitting layer (EML) 105, a hole blocking layer (HBL) 106, an electron transport layer (ETL) 107, an electron injection layer (EIL) 108, a cathode layer 109, and a capping layer (CPL) 110. In a bottom emission device, the anode layer 101 is a transparent or semi-transparent material, including but not limited to ITO, IZO, MoOx (molybdenum oxide), etc., and its transparency is generally greater than 50%; preferably, the transparency is greater than 70%; the cathode layer 109 is a material with high reflectivity, including but not limited to Al, Ag, etc., and the reflectivity is greater than 70%; preferably, the reflectivity is greater than 90%. In the top emission device, the anode layer 101 is a material or a combination of materials with high reflectivity, including but not limited to Ag, Ti, Cr, Pt, Ni, TiN, and a combination of the above materials with ITO and / or MoOx (molybdenum oxide), and the reflectivity is usually greater than 50%; preferably, the reflectivity is greater than 80%; more preferably, the reflectivity is greater than 90%. The cathode layer 109 should be a semi-transparent or transparent conductive material, including but not limited to MgAg alloy, MoOx, Yb, Ca, ITO, IZO or a combination thereof, and its transparency is generally greater than 30%; preferably, the transparency is greater than 50%. The hole injection layer 102 can be a single material layer, such as the commonly used HATCN; the hole injection layer 102 can also be a hole transport material doped with a certain proportion of p-type conductive doping material, usually the doping ratio is not higher than 5%, and the commonly used is between 1% and 3%. The light-emitting layer 105 usually also includes at least one host material and at least one light-emitting material, while the electron blocking layer 104 and the hole blocking layer 106 are optional layers, and the capping layer 110 is not required in the bottom emission device. The electron transport layer 107 may be a single layer of Yb, LiQ or LiF, or may be formed by co-evaporation of two or more materials. Figure 1bSchematic diagram of the structure of a multicolor OLED device 130. When other layers remain unchanged, the light-emitting layer may include a light-emitting layer 1051 and a light-emitting layer 1052, wherein the peak wavelength of the light-emitting layer 1051 may be between 600-750nm (red light), and the peak wavelength of the light-emitting layer 1052 may be between 751-1400nm (near-infrared light). Note that the order of the two light-emitting layers may also be reversed, that is, the light-emitting layer 1051 emits near-infrared light, and the light-emitting layer 1052 emits red light. An OLED device with this structure can emit red light and near-infrared light at the same time. Figure 1c 1 is a schematic diagram of the structure of a color-variable OLED device 120, which has a light-emitting layer 1053, a light-emitting layer 1055 and an adjustment layer 1054. The adjustment layer 1054 can regulate the movement of electrons and holes at different current densities, thereby achieving color regulation. For example, the peak wavelength of the light-emitting layer 1053 can be between 600-750nm (red light), and the peak wavelength of the light-emitting layer 1055 can be between 751-1400nm (near-infrared light). At low current density, the exciton recombination zone is mainly close to the cathode side, that is, in the light-emitting layer 1053, and the OLED device 120 can emit red light at this time; when the injection is gradually increased and the voltage and current density are increased, the exciton recombination zone moves to the anode side and finally enters the near-infrared light-emitting layer 1055, and the OLED device 120 emits near-infrared light. Of course, the light-emitting layer 1053 can also emit near-infrared light, and the light-emitting layer 1055 can emit red light, and vice versa. The structure of the color-variable OLED device and the use of the adjustment layer may be specifically referred to the inventor's previous patent applications CN111081891A and CN111081892A.

[0070] A typical schematic diagram of the structure of a stacked OLED device 200 is shown in FIG. Figure 2As shown, it includes an anode layer 201, a first light-emitting unit 202, a charge generation layer (CGL) 203, a second light-emitting unit 204, and a cathode layer 205. The first light-emitting unit 202 and the second light-emitting unit 204 may further include a series of organic layers from the hole injection layer 102 to the electron injection layer 108 in the single-layer light-emitting device 100, and the light-emitting layers of the first light-emitting unit 202 and the second light-emitting unit 204 may be the same or different. The first light-emitting unit 202 and the second light-emitting unit 204 may emit light of the same color, for example, both emit red light with a peak wavelength between 600-750nm; the first light-emitting unit 202 and the second light-emitting unit 204 may also emit light of different colors, for example, the first light-emitting unit 202 emits red light, and the second light-emitting unit 204 emits near-infrared light with a peak wavelength between 751-1400nm. In this case, the device 200 can emit red light and near-infrared light at the same time. The charge generation layer 203 is generally composed of an n-type material and a p-type material, and a buffer layer may be added, as described in patent application CN112687811A. If the stacked device is a top emission device, a capping layer (not shown) may be added on the cathode layer 205. Figure 2 The device shown is a 2-unit stacked device, and a third light-emitting unit and a second charge generation layer can be added to form a 3-unit stacked device. The preparation of single-layer and stacked OLED devices is well known in the industry and will not be described in detail here.

[0071] One type of light source that can be used in phototherapy products is a flexible organic light emitting device (OLED). A cross-sectional schematic diagram of a flexible OLED light emitting panel is shown in Figure 3a-3d In. Figure 3aIn the figure, the OLED light-emitting panel 300 includes a substrate 301, an OLED device 310, a pair of contact electrodes 303 electrically connected to the OLED device 310, a packaging layer 302 (but the contact electrodes 303 are exposed), and an adhesive structure 304 connects the pair of contact electrodes 303 to an external driving circuit. The substrate 301 is flexible, including but not limited to ultra-thin flexible glass, PET (polyethylene terephthalate), PEN (polyethylene naphthalate), PI (polyimide), etc. In particular, the substrate 301 can be a material (such as PI material) that is previously coated on a supporting base plate in the form of a solution, and is used for device preparation after being cured and flattened. After the device preparation is completed, it is peeled off from the supporting base plate using a laser and transferred to other flexible substrates as needed. The OLED device 310 can be a bottom-emitting device or a top-emitting device. Preferably, the OLED device 310 is a top-emitting device because it has a higher luminous efficiency. The OLED device 310 can be a single-layer structure or a stacked structure. Preferably, the OLED device 310 has a stacked structure because it has a longer life at the same brightness, and because the thicker film layer is conducive to improving the production yield. The organic material in the OLED device 310 can be formed by thermal evaporation in a vacuum chamber, or it can be partially or completely formed using a solution method, including but not limited to ink jet printing, spin coating, organic vapor spray printing (OVJP), etc. The encapsulation layer 302 is a thin film encapsulation layer, and the thickness is usually more than 10μm, such as a single-layer inorganic layer, or a thin film organic and inorganic alternating multilayer structure, which is formed by plasma enhanced chemical vapor deposition (PECVD), atomic layer deposition (ALD), printing, spin coating, etc. The contact electrode 303 may include at least one anode contact and at least one cathode contact. The front cover film 305 can be added to the above-mentioned OLED light-emitting panel, such as Figure 3b As shown. The front cover film 305 can be a flexible printed circuit (FPC) board on which a pre-designed circuit is printed and electrically connected to the OLED device 310 through the adhesive structure 304. In another embodiment, the adhesive structure 304 can be an FPC frame, and the front cover film 305 can be a plastic film to provide mechanical support. A specific description of using an FPC board to drive an OLED light-emitting panel can be found in patent application US20190376650A1, which is incorporated by reference in its entirety and is not within the scope of the detailed description of this application. The front cover film 305 may also include a light extraction layer. When the OLED device 310 is a top-emitting device, the front cover film 305 is transparent in the light-emitting area. The front cover film 305 can be a combination of the various forms described above. An additional thin film encapsulation layer 306 can be coated on one or both sides of the substrate 301, such as Figure 3c The front cover film may also be coated with an additional thin film encapsulation layer 306, but this is not shown in the figure. Figure 3d In the embodiment, the back cover film 307 is covered on the substrate 301. The back cover film 307 can be used for mechanical support and is usually a flexible film, such as a plastic such as PET. When the OLED is a bottom-emitting device, the back cover film 307 can be a light extraction layer and is transparent. The back cover film 307 can be a combination of the above-mentioned various forms. Such a flexible OLED light-emitting panel, when electrically connected to an external electric drive (regardless of whether it is in the on or off state), is a flexible OLED light source, which is one of the basic components of the light therapy product in the present invention.

[0072] There are several ways to achieve light with multiple different wavelengths:

[0073] The first is to design a pixelated layout on the same OLED light-emitting panel and then drive each pixel independently, or to group the pixels and drive different groups independently. OLED light-emitting panels are flexible, that is, they use flexible substrates and thin film packaging. The pixels here usually have a light-emitting area of ​​millimeters, that is, the minimum size is greater than or equal to 1mm 2 , preferably greater than or equal to 5mm 2 .For example, Figure 5a A flexible OLED light-emitting panel 500 shown may include a flexible OLED substrate 501, on which a series of OLED devices 502 are prepared by graphics, and these devices share the same thin film encapsulation layer 503. At this time, each pixel is an OLED device, and the entire flexible OLED light-emitting panel is a light source. At this time, metal wiring can be arranged on the panel while preparing the anode or cathode to electrically connect each OLED device 502. The method of metal wiring is well known to people in the field and will not be repeated here. By controlling different OLED devices through a circuit control system, different devices can emit light of different colors, or the same device can work under different currents, thereby achieving multiple colors.

[0074] A variation of this scheme is Figure 5bThe flexible OLED light-emitting panel 510 shown includes a flexible OLED substrate 501 and a series of OLED devices 502, but each device has a separate encapsulation layer 513, and preferably, the encapsulation layer is a thin film encapsulation layer. At this time, different OLED devices 502 can be connected not only through metal wiring, but also electrically connected through an FPC circuit board, which greatly improves the conductivity and the possibility of circuit complexity. Similarly, through these electrical connections, a single or multiple OLED devices 502 can be driven independently. In the above two cases, if different colors of light are to be emitted, different device structures can be evaporated on different OLED devices using a metal mask, especially changing the material of the light-emitting layer; it can also be referred to as described in patent applications CN111081892A and CN111081891A, all devices use the same independent unit multi-light-emitting layer structure, and the color change is achieved by moving the composite area at different working points.

[0075] Another solution is to form an array of independent OLED light-emitting panels, such as Figure 5c As shown, at this time, each OLED light-emitting panel includes an independent substrate 521, an OLED device 502 and an independent encapsulation layer 513. Each independent OLED light-emitting panel is also flexible. These independent OLED light-emitting panels can be cut from the same motherboard, for example, they all use the same independent unit multi-light-emitting layer structure, or they can be reassembled by selecting devices of different structures from different motherboards. The advantage of this solution is that the devices can be screened, the yield rate is improved, and the diversity of product colors is increased. Figure 5c The independent light-emitting panels shown can be arranged and combined according to needs through FPC or front and rear cover films to form a dot matrix physically connected to each other. For details, please refer to the method disclosed in CN208750423U, which is not the focus of the present application and will not be repeated. Similarly, these panels can be independently controlled and given different working currents. The above-mentioned array arrangement can not only achieve multi-color light emission, but also realize partition control, such as controlling the phototherapy product as needed so that it only performs phototherapy on designated parts, or making the intensity or illumination duration of different areas different. This optional local illumination can further reduce power consumption and save energy.

[0076] The neck device 600 disclosed in the present application is as follows Figure 6As shown, it includes a support film 610, at least one flexible OLED light-emitting panel 620, a driving device 630, and a decorative component 650. The support film 610 is made of elastic material, and the side of the support film 610 away from the neck 601 presents skin color, so that it can be well consistent with the skin color of the neck from the outside, so that the flexible OLED light-emitting panel has an invisible effect, achieving the overall aesthetic effect of the wearer, but does not affect its phototherapy function. The use of a support film 610 with elastic fabric can make the neck device 600 better attached to the skin, on the one hand, increase the therapeutic effect, and on the other hand, the flexible OLED light-emitting panel 620 is at a certain distance from the edge of the support film 610, which can avoid light leakage. The OLED light-emitting panel 620 is integrated in the position facing the front skin of the neck. Since wrinkles are not easy to form on the back of the neck, a phototherapy panel may not be set. In this way, the main stretching position of the elastic support film 610 is on the side and back of the neck, and there is almost no stretching effect on the OLED light-emitting panel integrated on the front, which can protect the OLED light-emitting panel. If multiple OLED light-emitting panels 620 are used, the inventor's previous application CN111514466A can be referred to, and each panel can be arranged with a slight overlap, so that each panel can move appropriately with the movement of the elastic support film during stretching without being damaged. The OLED light-emitting panel 620 can be integrated on the support film 610 by bonding, sewing, embedding, etc. The OLED light-emitting panel 620 is electrically connected to the driving device 630. Preferably, the driving device 630 provides direct current to the light-emitting panel 620. The electrical connection includes but is not limited to one or more of thin film metal, transparent conductive material, and FPC lead wire. The driving device 630 includes but is not limited to one or more of power supply, charging device (preferably wireless charging device), Bluetooth communication device, chip, lead wire, circuit board, switch and other devices, wherein the power supply includes a battery, and the battery can be selected from one or more of thin film battery, micro battery, button battery, chemical battery, lithium battery, and hydrogen battery. When the neck light therapy device 600 includes multiple flexible OLED light-emitting panels, each flexible OLED light-emitting panel 600 is electrically connected to the driving device 630, which is not drawn here. The driving device 630 can also be wirelessly connected to an external electronic device through a Bluetooth communication device, and controlled by the external electronic device, such as switching, brightness adjustment, and partition control. The external electronic device can be a smart phone, a smart watch, a tablet computer, a laptop computer, etc. Furthermore, the external electronic device can also be controlled in conjunction with an application (APP).A decorative component 650 is also provided on the side of the neck device 600 away from the human neck, wherein the decorative component 650 is an ornament, and can also be a connecting device for connecting with the ornament, and the ornament includes but is not limited to neckbands, scarves, bow ties, necklaces, collars, ties, neck guards, neck covers, etc., and the materials used for the ornament include but are not limited to silk satin, chiffon, cloth, lace, natural or artificial jewelry, decorative metals, artificial flowers, natural or artificial leather, etc. The connecting device used to connect with the ornament includes one or more of Velcro, buckles, buttons, zippers, and straps. Such a neck phototherapy device can be adjusted in size according to the size of the user's neck when used to better achieve the treatment effect, and the skin-colored support film can hide the OLED light-emitting panel, which has the effect of invisibility and privacy protection. From the outside, it looks like just wearing an ornament and can be worn at any time, which is both beautiful and practical.

[0077] For the convenience of wearing, when the neck light therapy device can be unfolded into a plane, it can also include a fixing device 640, such as Figure 6 As shown, the fixing device 640 is used to fix the neck phototherapy device 600 on the neck, and is generally arranged at both ends of the support film 610. It can be one or more of Velcro, buckles, buttons, zippers, and straps. When in use, you only need to fit the neck phototherapy device 600 to the neck and use the fixing device 640 to connect the two ends on the back of the neck to fix it.

[0078] In order to avoid adverse reactions such as allergies caused by direct contact of the skin with various artificial materials on the OLED light source, a skin-friendly layer 660 is added between the above-mentioned flexible OLED light-emitting panel 620 and the human neck 601. The skin-friendly layer 660 is flexible and light-transmissive, such as medical silicone, silk, cotton, linen, gauze, etc., preferably medical silicone. In particular, in order to allow the light emitted by the OLED light-emitting panel 620 to pass through the skin-friendly layer 660 as much as possible, the skin-friendly layer 660 uses a sparse weaving method as much as possible, or even a hollowing method, to allow light to pass through. In particular, the skin-friendly layer 660 can use a sparse weaving method in the overlapping part with the OLED light source 620 or the light source on the light source, so that light passes through, and a conventional weaving method is used in the area without an OLED light source or a non-luminous area. The skin-friendly layer 660 may also include all or part of the front cover film 305 in the top light-emitting device or the back cover film 307 in the bottom light-emitting device. The skin-friendly layer 660 needs to shield the contact electrode and the FPC circuit board to avoid direct contact between the human body and these substances.

[0079] Of course, thanks to the elasticity of the elastic fabric, the neck light therapy device can also not include a fixing device, such as Figure 7The neck phototherapy device 700 shown includes a support film 710, at least one flexible OLED light-emitting panel 720, a driving device 730, and a decorative component 750. The light-emitting surface of the flexible OLED light-emitting panel 720 faces the front 701 of the human neck. When the neck phototherapy device 700 includes multiple flexible OLED light-emitting panels, each flexible OLED light-emitting panel 720 is electrically connected to the driving device 730, which is not drawn here. The neck phototherapy device 700 also includes a skin-friendly layer arranged between the flexible OLED light-emitting panel 720 and the human neck 701, which is not drawn here. In this embodiment, the entire support film 710 is formed into a cylindrical or tubular shape. Due to the use of elastic fabrics, it can be directly put on from the head to the neck when worn, so no additional fixing device is required, and the design is simpler and thinner.

[0080] The neck phototherapy device described in the present invention uses elastic fabrics for the supporting film, so that the flexible OLED panel can fit closely to the neck skin, can make full use of the luminous efficiency, and presents skin color on the side away from the neck, which is comfortable to wear and the supporting film presents skin color on the side away from the neck, making the flexible OLED light-emitting panel invisible, which can effectively protect privacy, and has decorative parts, which looks like only wearing decorations from the outside, and at the same time, the OLED light source is powered to emit red light, deep red light and / or near-infrared light, and the phototherapy effect is strong. Furthermore, the flexible OLED light-emitting panel is a certain distance away from the edge of the supporting film, does not leak light, and can achieve good wrinkle removal and treatment effects. Therefore, it can be worn anytime and anywhere, further increasing the phototherapy effect.

[0081] It should be understood that the various embodiments described herein are only examples and are not intended to limit the scope of the present invention. Therefore, as will be apparent to those skilled in the art, the claimed invention may include variations of the specific embodiments and preferred embodiments described herein. Many of the materials and structures described herein may be replaced with other materials and structures without departing from the spirit of the present invention. It should be understood that the various theories about why the present invention works are not intended to be restrictive.

Claims

1. A neck phototherapy device, comprising: A supporting film, at least one flexible OLED light-emitting panel, a driving device, and a decorative component; The support film has skin color on the side away from the neck; The supporting film is made of elastic fabric; The flexible OLED light-emitting panel is integrated on the supporting film, and the flexible OLED light-emitting panel has a light-emitting surface and emits light toward one side of the neck; The flexible OLED light-emitting panel emits light with at least one peak wavelength in the range of 600-1400 nm; The flexible OLED light-emitting panel is electrically connected to the driving device; The decorative component is arranged on the side of the supporting film away from the neck.

2. The neck phototherapy device as described in claim 1, wherein the elastic fabric is selected from one or more of spandex, stretch cotton, nylon, rubber, Lycra, and stretch silk.

3. The neck light therapy device as described in claim 1, wherein the flexible OLED light-emitting panel emits light containing at least two peak wavelengths, wherein the first emission peak wavelength is between 600-750nm, and the second emission peak wavelength is between 751-1400nm; preferably, the first emission peak wavelength is between 630-750nm; more preferably, the first emission peak wavelength is between 650-750nm.

4. The neck phototherapy device as described in claim 3, wherein the second emission peak wavelength is between 751-970nm, preferably, the second emission peak wavelength is between 751-900nm.

5. The neck phototherapy device as described in claim 1, wherein the supporting film can be unfolded into a plane, and comprises a fixing device, and the fixing device is arranged at both ends of the supporting film; preferably, the fixing device comprises one or more of Velcro, buckles, buttons, zippers, and straps. The neck phototherapy device according to claim 1 , wherein the supporting film is tubular or cylindrical.

7. The neck light therapy device as described in claim 1, wherein the edge of the flexible OLED light-emitting panel is a certain distance away from the edge of the supporting film, and the flexible OLED light-emitting panel can cover at least 50% of the surface area of ​​the front of the neck; preferably, the flexible OLED light-emitting panel can cover at least 70% of the surface area of ​​the front of the neck; more preferably, the flexible OLED light-emitting panel can cover at least 80% of the surface area of ​​the front of the neck.

8. The neck light therapy device as claimed in claim 1, wherein the decorative component is an ornament or a connecting device for connecting to an ornament.

9. The neck phototherapy device as described in claim 8, wherein the decoration comprises one or more of a neck gaiter, a scarf, a bow tie, a necklace, a collar, a tie, a neck guard, a neck cover, a natural or artificial jewelry, and an artificial flower decoration.

10. The neck phototherapy device as described in claim 1 comprises a skin-friendly layer, and the skin-friendly layer is arranged on the light-emitting surface of the flexible OLED light-emitting panel facing the neck; preferably, the material of the skin-friendly layer is selected from one or more of medical silicone, cotton, linen, and gauze; more preferably, the material of the skin-friendly layer is selected from medical silicone.

11. The neck light therapy device as claimed in claim 1, wherein the flexible OLED light emitting panel is driven by direct current.

12. The neck phototherapy device as described in claim 1, wherein the driving device includes one or more of a power supply, a wireless charging device, a Bluetooth communication device, a chip, a lead, a circuit board, and a switch.

13. The neck light therapy device as described in claim 1, wherein the electrical connection is one or more of thin film metal, transparent conductive material, and FPC lead.

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