CN111481833A

CN111481833A - Phototherapy cap

Info

Publication number: CN111481833A
Application number: CN202010294488.9A
Authority: CN
Inventors: 庞惠卿; 高东东; 谢梦兰
Original assignee: Beijing Xiahe Technology Co ltd
Current assignee: Beijing Xiahe Technology Co ltd; Beijing Summer Sprout Technology Co Ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-08-04

Abstract

The phototherapy cap comprises a cap top, at least one O L ED light-emitting panel, at least one thin film photovoltaic cell and a circuit control device, wherein the cap top comprises an inner surface and an outer surface, the inner surface is in contact with the head, the O L ED light-emitting panel comprises at least one O L ED device, the peak emission wavelength is 600-.

Description

Phototherapy cap

Technical Field

The invention relates to a cap with phototherapy effect, in particular to a cap with phototherapy effect integrating a red light or near infrared light emitting O L ED light source and a thin film photovoltaic cell.

Background

The light dynamic Therapy (PDT) born in the beginning of the last century can be combined with various medicines and widely used in the Treatment of tumor diseases, and the technologies of low light level Therapy (L ow L light L as Treatment) and Photobiomodulation (PBM) and the like appear after more than half a century, and all the technologies take light as a means for treating diseasesApplied in the medical field (Michael R.Hamblin, Ying-Ying Huang, Handbook of photomedicine, CRC Press). Various studies show that red light to near infrared light is helpful for promoting the regeneration of tissues such as collagen and skin cells, and can be applied in the fields of anti-wrinkle cosmetology, wound healing promotion, spot removal and scar elimination (Chan HeeNam et al, Dermatologic Surgery, 2017; 43: 371; 380; Daniel Barolet, Semin CutanMed Surg,27: 227-. FIG. 1 shows the penetration depth of different wavelengths in human skin, and it can be seen that light with a wavelength of 600-. FIG. 2 shows the absorption of light of different wavelength bands by different physiological substances (such as water, hemoglobin, oxyhemoglobin and melanin), and it can be seen that the optimal wavelength band window capable of passing through the skin tissue without loss is approximately between 600 and 1400nm (the wavelength band window is approximatelyhttps://www.thepaleomom.com/ joovv-red-light-therapy-for-weight-loss/). By combining the above two points, the red light with the wavelength of 600-1000nm and the near infrared light are the best choice for non-invasive treatment.

Products for hair growth treatment in hats or helmets using integrated red or near infrared light sources are described in some patent applications, among which there are those using lasers as light sources (CN102015021B, CN110038231A, TW200718447A), those using semiconductor light emitting diodes L ED as light sources (CA2683090a1, CN102784437B, CN106139413A, CN107676638A, CN109123868A, CN204502144U, CN206198484U, US10525278B2, US2009/0012586a1, US 2009/1 a1) and those using 1ED or lasers as light sources but conducted by optical fibers (CN1, US 2013/1 a1), and in recent years there are also phototherapy devices using organic light emitting devices O1 ED as flexible light sources (CN1, CN 1B 1) but these applications have to be powered by external power sources, and when these light sources are very heavy, they have to be worn on top of batteries, and are not suitable for phototherapy devices.

In recent years, thin-film photovoltaic cells, particularly organic solar cells, have gained a rapid development from the advantages of high efficiency, low cost, ease of fabrication, etc., and the external quantum efficiency thereof can reach 18%, perovskite solar cells have reported a rapid increase in photoelectric conversion efficiency thereof since they have reported, and currently the external quantum efficiency of laboratory devices reaches 24.2%, which can compete with commercial solar cell technologies, thin-film photovoltaic cells can also efficiently convert low-intensity light in an indoor environment into electric power of megawatt level to microwatt level, which is recognized as an ideal choice for driving low-power-consumption equipment, indoor organic solar cells (OPV) developed by Yong Cui et al can not only generate electricity indoors in living rooms, offices, libraries, etc., illuminate the OPV devices with L ED lamps (1000 illuminance), the conversion efficiency is higher by 26%, since the devices are just opposite to O L, numerous patents are published, and the principles of which have been applied to the devices of the same CN, ep, and so on the same structures are commonly used in combination, and the same as detailed description, but are applied to describe two types of.

The invention utilizes the photoelectric conversion principle and function of photovoltaic devices and O L ED devices, and integrates the photovoltaic devices and the O L ED devices into a hat, and a thin film photovoltaic cell is arranged on the outer surface of the crown and/or the brim to receive the ambient light and convert the ambient light into electric energy, so as to drive an O L ED light source arranged on the inner side of the crown.

Disclosure of Invention

In view of the above problems, the present invention is directed to a phototherapy cap that solves at least some of the problems described above.

According to one embodiment of the invention, a phototherapy cap is disclosed, comprising a cap top, at least one O L ED luminous panel, at least one thin film photovoltaic cell and a circuit control device;

wherein the crown comprises an inner surface and an outer surface, and the inner surface is in contact with the head;

wherein the O L ED light-emitting panel comprises at least one O L ED device, and the O L ED device emits peak wavelength between 600 and 1400 nm;

wherein the at least one O L ED light emitting panel is disposed on an inner surface of the crown;

wherein the at least one thin film photovoltaic cell is disposed on an outer surface of the crown;

wherein the circuit control device is electrically connected to the at least one thin film photovoltaic cell and the at least one O L ED light emitting panel.

The invention discloses a cap with phototherapy effect, which integrates a photovoltaic device and an O L ED device, in particular, the light sources can be flexible O L ED light sources, and the photovoltaic absorbs ambient light and converts the ambient light into electric energy to drive the light sources and emit red light or near infrared light, so that the cap has medical effects of hair growth, freckle removal, healing wound, scar removal and the like.

Drawings

FIG. 1 is a schematic illustration of the penetration depth of different wavelengths into the skin.

FIG. 2 is a schematic diagram of the absorption of different physiological substances at different wavelengths.

Fig. 3a-3d are schematic diagrams of O L ED light emitting panel structures.

Fig. 4a-4c are schematic circuit diagrams of a phototherapy cap.

Fig. 5a-5c are schematic diagrams of a dot matrix light source using an O L ED device as an example.

Fig. 6a-6b are schematic views of a phototherapy cap.

Fig. 7a-7b are schematic views of another phototherapy cap.

Detailed Description

As used herein, "top" means furthest from the substrate, and "bottom" means closest to the substrate. In the case where the first layer is described as being "disposed on" the second layer, the first layer is disposed farther from the substrate. Conversely, where a first layer is described as being "disposed" under a second layer, the first layer is disposed closer to the substrate. Other layers may be present between the first and second layers, unless it is specified that the first layer is "in contact with" the second layer. For example, a cathode can be described as being "disposed on" an anode even though various organic layers are present between the cathode and the anode.

As used herein, the term "O L ED device" includes an anode layer, a cathode layer, and one or more organic layers disposed between the anode layer and the cathode layer an "O L ED device" can be either bottom emitting, i.e., emitting light from the substrate side, or top emitting, i.e., emitting light from the encapsulation layer side, or transparent, i.e., emitting light from both the substrate and the encapsulation side.

As used herein, the term "O L ED light emitting panel" includes a substrate, an anode layer, a cathode layer, one or more organic layers disposed 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 of the encapsulation layer for external access.

As used herein, the term "module" refers to an electronic device having only one set of external electrical drives.

As used herein, the term "encapsulation layer" may be a thin film encapsulation having a thickness of less than 100 microns, which includes disposing one or more thin films directly onto the device, or may also be a cover glass (cover glass) adhered to a substrate.

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

The light extraction layer may be disposed on the surface of the O L ED substrate, or in 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 forth.

As used herein, the term "independently driven" means that the operating points of two or more light emitting panels are separately controlled. Although the light emitting panels may be connected to the same controller or power line, there may be circuitry to divide the drive lines and power each panel without affecting each other.

As used herein, the term "light-emitting region" refers to a portion of the planar area where the anode, organic layer and cathode coincide together, excluding light extraction effects.

As used herein, the term "light emitting face" refers to the side of the light source that emits light, e.g., if the light source comprises a bottom emitting O L ED light emitting panel, the "light emitting face" comprises the side of the substrate away from the anode, and if a top emitting device, the "light emitting face" comprises the side of the encapsulation layer away from the cathode.

As used herein, the term "stacked device" refers to a device structure having a plurality of light emitting layers between a pair of cathodes and anodes, each light emitting layer having its own independent hole transport layer and electron transport layer, each light emitting layer and its associated hole transport layer and electron transport layer constituting a single light emitting layer, the single light emitting layers being connected with a charge generation layer therebetween, and a device having such a plurality of single light emitting layers is a "stacked device".

As used herein, the term "thin film photovoltaic cell" may be an organic photovoltaic cell (OPV), but also a perovskite thin film photovoltaic cell, but also a flexible photovoltaic cell made using thin film semiconductor materials.

According to one embodiment of the invention, the emission peak wavelength of the O L ED device is between 630 and 1000 nm.

According to one embodiment of the invention, the emission peak wavelength of the O L ED device is between 660 and 800 nm.

According to one embodiment of the invention, the O L ED light-emitting panel comprises at least two O L ED devices, and the emission peak wavelengths of the two O L ED devices are different by not less than 30 nm.

According to an embodiment of the present invention, the circuit control device may provide different operating points for at least two O L ED devices.

According to one embodiment of the present invention, the O L ED device is a bottom emitting device or a top emitting device.

According to an embodiment of the invention, wherein the O L ED device is a top emitting device.

According to one embodiment of the present invention, the O L ED device is a single layer device or a stacked layer device.

According to one embodiment of the present invention, wherein the O L ED device is a stacked device.

According to an embodiment of the invention, wherein the thin film photovoltaic cell comprises one or more of: flexible semiconductor thin film batteries, perovskite batteries, organic photovoltaic batteries.

According to an embodiment of the invention, wherein the circuit control means comprises one or more of: switch, electric connection, CPU chip, sensor, display, microprocessor, FPC circuit board, memory, power amplifier, electric drive.

According to an embodiment of the invention, wherein the electric drive comprises one or more of the following: battery, USB interface, wireless charging device.

According to an embodiment of the present invention, wherein the circuit control means may provide at least two different operating points for at least one O L ED device.

According to one embodiment of the present invention, at least one O L ED device emits light differently at different operating points.

According to an embodiment of the present invention, the O L ED light emitting panel further comprises a substrate, which is a rigid substrate or a flexible substrate.

According to an embodiment of the present invention, wherein the substrate is a flexible substrate; wherein the flexible substrate comprises one or more of: ultrathin flexible glass, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and Polyimide (PI).

According to one embodiment of the invention, the O L ED light-emitting panel further comprises an encapsulation layer, wherein the encapsulation layer is a thin film encapsulation layer.

According to one embodiment of the present invention, wherein the phototherapy cap further comprises a visor, wherein the visor comprises an inner surface and an outer surface, wherein the outer surface is the side facing away from the head.

According to one embodiment of the invention, the visor has a thin film photovoltaic cell disposed on an outer surface thereof.

According to one embodiment of the invention, wherein the phototherapy cap further comprises a capacitor electrically connected with the thin film photovoltaic cell, the O L ED light emitting panel and the circuit control device.

According to an embodiment of the invention, wherein said capacitor device is a thin film capacitor device.

According to an embodiment of the invention, wherein the phototherapy cap may be in the shape of a baseball cap, a straw cap, a cowboy cap, a silk hat, a peaked cap, a beret cap, a felt cap.

A light source that may be used in a phototherapy cap is an organic light emitting device (O L ED), a cross-sectional view of an O L ED light emitting panel is shown in fig. 3a-3D, in fig. 3a, an O L ED light emitting panel 300 comprises a substrate 301, an O L ED device 310, a pair of contact electrodes 303 electrically connected to an O L ED device 310, an encapsulation layer 302 exposing the contact electrodes 303, a bonding structure 304 connecting a pair of contact electrodes 303 to an external driving circuit, the substrate 301 may be rigid such as glass, preferably flexible including but not limited to ultra-thin flexible glass, PET, PEN, PI, etc. in particular, the substrate 301 may be a material (e.g. Polyimide material) that is applied as a solution on a support substrate in advance, cured and planarized for device preparation, and then peeled off from the support substrate using a laser, and transferred to other flexible substrates as required, the device 310 may be a bottom light emitting device or top light emitting device 305, and may be printed as a top cover film, or as a cover film, a cover structure suitable for use of a light emitting panel, or a light emitting device, or a light emitting panel, or light emitting device, or light emitting panel, or a light emitting device, or light emitting panel, or a light emitting device, which may be formed by a cover film, preferably a cover, when a cover.

The O L ED light source used in the cap can emit light with a peak wavelength of 600-²Is preferably selectedGreater than 5mm²For example, a flexible O L ED light emitting panel 500 as shown in fig. 5a may comprise a flexible O L ED substrate 501 on which a series of O L ED devices 502 are graphically prepared, which all share the same thin film encapsulation layer 503, when each light emitting unit is an O L ED device, the entire flexible O L ED light emitting panel is a light source, when metal wires may be arranged on the panel at the same time as the anode or cathode for electrically connecting the individual O L ED devices 502, the methods of metal wires are well known to those skilled in the art and not described herein, a circuit control system controlling the different O L4 devices, which may allow different devices to emit light of different colors, or the same device to operate at different currents, which may achieve multiple colors, a variant of this solution is a flexible O L ED 510 as shown in fig. 5b, which comprises a flexible O L substrate 501, a series of O L ED devices 502, but each device is individually encapsulated and preferably a single flexible O466 ED device encapsulating multiple light emitting panel 502, when the light emitting panel is made using a single flexible O L substrate, a plurality of individual light emitting devices, which may be made of different colors, such as described above, and a flexible O L ED emitting panel, or a flexible O L ED 120, may be made using a different electrically connected to a different FPC 48, when the same electrically connected to a flexible O equivalent light emitting panel, No. 7a flexible O2 d device is used to make up a flexible O2 d 3ED, No. 7, No. 7a flexible O3 d device is used to make up a flexible O3 d, No. 7a flexible O3 d, No. 7a flexible O3 d, No. 3d, No. 2 d, No. 3d, No. 3d, No. when the light emitting panel, No. 2a flexible O3 d, No.The optical layer structure can also be reassembled by selecting devices with different structures from different motherboards. The scheme has the advantages that the device can be screened, the yield is improved, and the color diversity of products is also improved. The independent light-emitting panel shown in fig. 5c can be arranged and combined through FPC or front and back cover films, etc. to form a lattice physically connected with each other as required, and it is specifically referred to the method disclosed in CN208750423U, and it is not in the scope of the present invention. Also, the panels may be independently controlled to apply different operating currents. The array arrangement can realize multicolor luminescence and partition control, such as hair growth phototherapy only on a local area of the top of the head or illumination only on an area with actinic keratosis. The local illumination can further reduce the power consumption and save energy.

The photovoltaic principle of converting solar energy (or light energy) into electrical energy has been discovered as early as the middle of the 19 th century, and solar panels based on silicon-based materials have been successfully commercialized after only 100 years, thin film photovoltaic cells have been vigorously developed, from the development of processes for making thin films from various conventional semiconductor group III-V materials to the development of novel thin film materials such as perovskite (CdS) as the base material of photovoltaic cells, and a large number of flexible photovoltaic cells have been demonstrated in recent half century, and at the same time, the photovoltaic effect in organic materials has been discovered in the beginning of the 20 th century, Organic Photovoltaic (OPV) devices have been made as large-area flexible products due to their low cost characteristics, and have gained a great deal of attention and gained a dramatic breakthrough in the 70, 80's.

The smart phone comprises a Light Emitting Diode (LED) light source, a Light Emitting Diode (LED) light source, a Light Emitting Diode (LED) light source, a Light Emitting Diode (LED) light emitting diode, a light source, a Light Emitting Diode (LED) light emitting diode, a Light Emitting Diode (LED) light emitting diode, a light source, a Light Emitting Diode (LED) light source, a light emitting diode, a light source, a light emitting diode, a light source.

A hat is divided into two parts, namely a hat top and a hat brim. The inner surface of the crown is a surface which is in contact with the head of a wearer and is also a surface for phototherapy, and the outer surface of the crown is a surface which is opposite to the inner surface and faces the external environment and can be integrated with a thin film photovoltaic cell. Similarly, the visor is divided into an inner surface and an outer surface, the outer surface of the visor facing the outside environment being a surface on which thin film photovoltaic cells can be integrated, whereas the inner surface of the visor is the opposite surface to which capacitors and other electronic devices can be integrated, and when worn, the wearer can see the inner surface of the visor but not the outer surface of the visor. Note that the hat mentioned in the present invention is not limited to its kind and style, and the hat mentioned in the present invention may be various and suitable for wearing in four seasons, such as baseball cap, straw hat, cowboy hat, silk hat, peaked cap, beret, felt hat, etc. The brim of some styles of caps is narrow or even has no brim, and only the outer surface of the crown can be integrated with the thin-film photovoltaic cell.

Fig. 6a and 6b show an example of a hat 600 with phototherapy effect from both inside and outside angles, the hat profile being a sun visor or straw hat style fig. 6a shows the appearance of the hat 600, including an outer surface 6011 of the top portion of the hat, and an outer surface 6021 of the visor portion, and further integrating thin film photovoltaic cells 603 on the top and visor outer surfaces 6011 and 6021, respectively, the photovoltaic cells 603 may be a single piece of device covering the top outer surface 6011 and the visor outer surface 6021, preferably a series of battery packs arranged in an array on the above surfaces, the area between the battery packs not requiring receiving illumination may be added with some decorative design to add aesthetic and fashion features, and may also serve as an auxiliary reinforcement, the center of the top may also include a capacitor 605, the top and top may also include a circuit control device 606, where the thin film photovoltaic cells 603 are electrically connected to the capacitor 603 and the capacitor 605, respectively, the circuit control device 606 may be electrically connected to the capacitor 603 and the capacitor, wherein the circuit control panel may be connected to the led 800, may be connected to a USB power source or to a circuit control a USB power source or an infrared light emitting device such as a portable lighting device may be connected to a portable lighting device such as a portable light emitting circuit, a portable light emitting panel, a portable light emitting device, a portable light emitting panel, a portable light emitting device, a portable light emitting panel, a portable light emitting panel, a.

Fig. 7a and 7b illustrate, from both an inside and outside perspective, another example of a cap 700 having a phototherapy effect, the cap having a baseball cap style, similarly, from the outside perspective of the four season cap 700 shown in fig. 7a, having a crown outer surface 7011 and a bill outer surface 7021, on which thin film photovoltaic cells 703 are disposed, again two or more thin film photovoltaic cells disposed on the

outer surfaces

7011 and 7021, respectively, in an array, a power switch 707 is disposed in the center of the crown, and a circuit control device 706 is disposed at the bottom of the crown, which may further include an electrical drive device, an internal structure of the cap 700 shown in fig. 7b, having a crown inner surface 7012 and a bill inner surface 7022, and an O L ED light emitting panel 704 is integrated on the crown inner surface 7012, and likewise, an O L ED light emitting panel may be a single piece flexible light emitting panel, or an array of a series of independently driven O L ED light emitting devices, capacitors may be integrated in the center, and capacitors may be used 705 in the same manner as the four season cap 600 described above.

The cap with the phototherapy effect disclosed by the invention integrates the thin film photovoltaic cell and the O L ED light source, can effectively promote hair growth, treat actinic keratosis hyperplasia, remove freckles, remove scars, heal wounds and the like, and has the advantages of light weight, attractiveness, economy, energy conservation, privacy protection and the like compared with other phototherapy caps.

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

Claims

1. A phototherapy cap comprises a cap top, at least one O L ED luminous panel, at least one thin film photovoltaic cell and a circuit control device;

2. A phototherapy cap as claimed in claim 1, wherein said O L ED device has an emission peak wavelength between 630 and 1000nm, preferably said O L ED device has an emission peak wavelength between 660 and 800 nm.

3. The phototherapy cap of claim 1, wherein said O L ED lighting panel comprises at least two O L ED devices, said two O L ED devices having emission peak wavelengths that differ by no less than 30 nm.

4. A phototherapy cap as defined in claim 3, wherein said circuit control means is capable of providing different operating points for at least two O L ED devices.

5. A phototherapy cap as claimed in claim 1, wherein said O L ED device is a bottom emitting device or a top emitting device, preferably said O L ED device is a top emitting device.

6. A phototherapy cap as claimed in claim 1, wherein said O L ED device is a single layer device or a stacked layer device, preferably said O L ED device is a stacked layer device.

7. A phototherapy cap as defined in claim 1, wherein said thin film photovoltaic cell comprises one or more of: flexible semiconductor thin film batteries, perovskite batteries, organic photovoltaic batteries.

8. A phototherapy cap as defined in claim 1, wherein said circuit control means comprises one or more of: switch, electric connection, CPU chip, sensor, display, microprocessor, FPC circuit board, memory, power amplifier, electric drive.

9. A phototherapy cap as defined in claim 7, wherein said electrical drive means comprises one or more of: battery, USB interface, wireless charging device.

10. A phototherapy cap as defined in claim 1, wherein said circuit control means is capable of providing at least two different operating points for at least one O L ED device.

11. A phototherapy cap as defined in claim 10, wherein at least one O L ED device emits light differently at different operating points.

12. A phototherapy cap according to claim 1, wherein the O L ED light emitting panel further comprises a substrate, the substrate being a rigid substrate or a flexible substrate, preferably wherein the substrate is a flexible substrate, wherein the flexible substrate comprises one or more of ultra-thin flexible glass, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), Polyimide (PI).

13. A phototherapy cap as defined in claim 1, wherein said O L ED light emitting panel further comprises an encapsulation layer, said encapsulation layer being a thin film encapsulation layer.

14. The phototherapy cap of claim 1, further comprising a visor, wherein the visor comprises an inner surface and an outer surface, wherein the outer surface is a side facing away from the head.

15. A phototherapy cap as defined in claim 14, wherein said visor has thin film photovoltaic cells disposed on an outer surface thereof.

16. A phototherapy cap as defined in claim 1, further comprising a capacitor electrically connected to said thin film photovoltaic cell, O L ED lighting panel and circuit control means.

17. A phototherapy cap as defined in claim 16, wherein said capacitive devices are thin film capacitive devices.