CN118022196A - Flexible light-emitting module and phototherapy beauty instrument - Google Patents
Flexible light-emitting module and phototherapy beauty instrument Download PDFInfo
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- CN118022196A CN118022196A CN202410185878.0A CN202410185878A CN118022196A CN 118022196 A CN118022196 A CN 118022196A CN 202410185878 A CN202410185878 A CN 202410185878A CN 118022196 A CN118022196 A CN 118022196A
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Abstract
The embodiment of the invention discloses a flexible light-emitting module and a phototherapy beauty instrument. In a specific embodiment, the flexible light emitting module includes a flexible organic light emitting panel and a flexible supporting layer located on a backlight side of the flexible organic light emitting panel, where the flexible organic light emitting panel is used for emitting red light. The embodiment can realize the surface light source light-emitting module with high light-emitting uniformity, has the advantages of good bending performance, low working temperature and the like, and is suitable for products such as phototherapy beauty instruments and the like.
Description
Technical Field
The invention relates to the technical field of luminous products. More particularly, to a flexible light emitting module and a phototherapy cosmetic instrument.
Background
Currently, products with light sources, such as phototherapy beauty instruments, generally use light emitting Diode (LIGHT EMITTING Diode) light emitting modules as light sources, and for example, phototherapy beauty instruments use LED light emitting modules to irradiate skin. However, taking a phototherapy cosmetic instrument as an example, the inventor finds that the LED light-emitting module cannot achieve a uniform surface light-emitting effect, and has the problems of higher working temperature, inability to deform to attach to an irradiation part, thereby improving comfort and cosmetic effect.
Disclosure of Invention
The invention aims to provide a flexible light-emitting module and a phototherapy beauty instrument, which are used for solving at least one of the problems existing in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The first aspect of the present invention provides a flexible light emitting module, which includes a flexible organic light emitting panel and a flexible supporting layer located at a backlight side of the flexible organic light emitting panel, wherein the flexible organic light emitting panel is used for emitting red light.
Optionally, the flexible light emitting module includes a flexible substrate and an organic light emitting layer disposed on the flexible substrate, where the organic light emitting layer is a red light emitting layer.
Optionally, the flexible light emitting module includes a flexible substrate and an organic light emitting layer disposed on the flexible substrate, where the organic light emitting layer is a white light emitting layer.
Optionally, the flexible light emitting module further includes a red light filter film disposed on a light emitting side of the flexible organic light emitting panel.
Optionally, the flexible light emitting module further includes an encapsulation layer located on a side of the organic light emitting layer away from the flexible substrate.
Optionally, the flexible light-emitting module further includes a heat conductive adhesive layer for bonding the flexible support layer and the flexible organic light-emitting panel.
Optionally, the flexible light emitting module further includes a protective film disposed on a light emitting side of the flexible organic light emitting panel.
Optionally, the flexible supporting layer includes a bending region and a non-bending region, and the bending region is provided with a plurality of openings.
Optionally, the flexible light emitting module further comprises a waterproof glue layer for packaging the side face of the flexible light emitting module.
The second aspect of the invention provides a phototherapy cosmetic instrument, which comprises the flexible light-emitting module provided by the first aspect of the invention.
The beneficial effects of the invention are as follows:
the flexible light-emitting module can realize a surface light source light-emitting module with high light-emitting uniformity, has the advantages of good bending performance, low working temperature and the like, and is suitable for products such as phototherapy beauty instruments and the like.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Fig. 1 shows a schematic diagram of a phototherapy cosmetic instrument in the related art.
Fig. 2 is a schematic structural view of a phototherapy cosmetic apparatus according to an embodiment of the present invention.
Fig. 3 is a top view showing a flexible support layer in a phototherapy cosmetic instrument according to an embodiment of the present invention.
Fig. 4 is a front view showing that the flexible support layer is formed with an opening by complete etching in the phototherapy cosmetic instrument according to the embodiment of the present invention.
Fig. 5 is a front view showing that an opening is formed in a flexible support layer by half etching in a phototherapy cosmetic instrument according to an embodiment of the present invention.
Fig. 6 is a front view showing that an opening is formed in a flexible support layer by gradual etching in a phototherapy cosmetic instrument according to an embodiment of the present invention.
Fig. 7 is a schematic diagram showing the lamination of the double-sided adhesive layer, the flexible supporting layer and the heat conductive adhesive layer in the phototherapy cosmetic instrument according to the embodiment of the invention.
Fig. 8 is a front view showing the attachment of the double-sided adhesive layer, the flexible supporting layer and the heat conductive adhesive layer in the phototherapy cosmetic instrument according to the embodiment of the invention.
Fig. 9 shows a schematic coating view of a waterproof adhesive layer in a phototherapy cosmetic instrument according to an embodiment of the present invention.
Fig. 10 is a schematic structural diagram of a bonding mode in a phototherapy cosmetic apparatus according to an embodiment of the present invention.
Fig. 11 is a schematic structural diagram of another bonding mode in the phototherapy device according to the embodiment of the present invention.
Detailed Description
As used in this disclosure, "on … …," "formed on … …," and "disposed on … …" may mean that one layer is formed directly on or disposed on another layer, or that one layer is formed indirectly on or disposed on another layer, i.e., that other layers are present between the two layers.
It should be noted that although the terms "first," "second," etc. may be used herein to describe various elements, components, elements, regions, layers and/or sections, these elements, components, elements, regions, layers and/or sections should not be limited by these terms. Rather, these terms are used to distinguish one component, member, element, region, layer and/or section from another. Thus, for example, a first component, a first member, a first element, a first region, a first layer, and/or a first portion discussed below may be referred to as a second component, a second member, a second element, a second region, a second layer, and/or a second portion without departing from the teachings of the present disclosure.
In this disclosure, unless otherwise indicated, the term "co-layer disposed" is used to mean that two layers, components, members, elements, or portions may be formed by the same manufacturing process (e.g., patterning process, etc.), and that the two layers, components, members, elements, or portions are generally formed of the same material. For example, the two or more functional layers are arranged in the same layer, meaning that the functional layers arranged in the same layer may be formed using the same material layer and the same manufacturing process, so that the manufacturing process of the display substrate may be simplified.
In the present disclosure, unless otherwise indicated, the expression "patterning process" generally includes the steps of coating of photoresist, exposure, development, etching, stripping of photoresist, and the like. The expression "one patterning process" means a process of forming a patterned layer, feature, component, etc. using a single mask.
Taking a phototherapy beauty instrument as an example, the inventor finds that the LED light-emitting module cannot realize a uniform surface light-emitting effect, and has the problems that the working temperature is higher, and the LED light-emitting module cannot deform to be attached to an irradiation part, so that the comfort level and the beauty effect are improved.
Specifically, the red light has unique effect in skin care, can stimulate the generation of collagen and lighten skin color. Accordingly, there is a red light phototherapy cosmetic instrument in the related art, for example, fig. 1 is a schematic diagram of the phototherapy cosmetic instrument in the related art, which uses an LED light emitting module as a light source, and the LED light emitting module includes a plurality of red light emitting diodes 10 arranged in an array, which can be seen to be composed of point light sources arranged in an array. On the one hand, because of the physical structural characteristics, the LED light-emitting module cannot realize uniform surface light-emitting effect, and the problems that the working temperature is higher, and the LED light-emitting module cannot deform to be attached to an irradiation part so as to improve comfort level and cosmetic effect and the like exist.
In view of this, an embodiment of the present invention provides a phototherapy cosmetic apparatus, including a flexible light emitting module, the flexible light emitting module includes a flexible organic light emitting panel and a flexible supporting layer located on a backlight side of the flexible organic light emitting panel, and the flexible organic light emitting panel is used for emitting red light.
In a specific example, in a film layer normal direction of the flexible organic light emitting panel, the flexible organic light emitting panel may include a flexible substrate, and a trace layer, a light emitting structure layer, and an encapsulation layer disposed on the flexible substrate.
In a specific example, the light emitting structure layer may include a plurality of light emitting devices emitting different colors. For example, the light emitting device may be an Organic Electro-luminescence Display (OLED) including an anode, a cathode, and an Organic light emitting layer interposed between the anode and the cathode.
In a specific example, a barrier layer is disposed between the flexible substrate and the trace layer, and can block water oxygen from entering the flexible organic light emitting panel.
In one particular example, the trace layer may include a plurality of traces. Further, a flat layer is arranged on one side of the wiring layer away from the flexible substrate.
In a specific example, the light emitting structure layer may include an anode layer, an organic light emitting layer, and a cathode layer disposed on the planarization layer.
In a specific example, the anode layer includes an anode, and the organic light emitting layer emits light of a corresponding color under the application of voltages to the anode and cathode layers.
In a specific example, the organic light emitting layer may include a hole injection layer, a hole transport layer, an excitation layer, an electron transport layer, and an electron injection layer, which are sequentially stacked.
In a specific example, fig. 2 is a schematic structural diagram of a phototherapy device according to an embodiment of the present invention. Fig. 2 includes a housing 101, a double-sided adhesive layer 102, a flexible support layer 103, a heat conductive adhesive layer 104, a back film layer 105, a light emitting structure layer 106, a package layer 107, a first optically transparent adhesive layer 108, a red light filter film 109, a second optically transparent adhesive layer 1010, a protective film 1011, and a waterproof adhesive layer 1014.
Further, fig. 2 further includes providing an etching area 1012 in the flexible supporting layer 103, where the etching area 1012 is a special-shaped area where the opening 403 needs to be formed in the vertical direction of the flexible supporting layer 103.
In one specific example, the housing 101 in FIG. 2 is a contoured housing, the thickness of which is typically greater than 1mm depending on the end product design; the thickness of the double-sided adhesive layer 102 is 0.25 mm-1 mm; the thickness of the flexible supporting layer 103 is 0.1 mm-1 mm; the thickness of the heat conducting glue layer 104 is 0.025 mm-2 mm; the thickness of the back film layer 105 is 0.05 mm-1.5 mm; the thickness of the light-emitting structure layer 106 is 0.02mm to 1mm; the thickness of the encapsulation layer 107 is 0.02 mm-1 mm; the thickness of the first optical transparent adhesive layer 108 is 0.05 mm-1 mm; the thickness of the red light filter film 109 is 0.025 mm-1 mm; the thickness of the second optical transparent adhesive layer 1010 is 0.05 mm-1 mm; the protective film 1011 is a high-permeability filter protective film, and the thickness of the high-permeability filter protective film is 0.025 mm-1 mm.
In a specific example, the projected areas of the film layers in the phototherapy cosmetic apparatus shown in fig. 2 have the following size relationship: the shell 101 is more than or equal to the light-emitting structure layer 106 is more than or equal to the red light filter film 109 is more than or equal to the protective film 1011> and the first optical transparent adhesive layer 108 and the second optical transparent adhesive layer 1010 are more than or equal to the heat conducting adhesive layer 104; further, the outer shell 101 is more than or equal to the flexible supporting layer 103 is more than or equal to the double-sided adhesive layer 102.
The flexible light-emitting module of the embodiment can realize a surface light source light-emitting module with high light-emitting uniformity, has the advantages of good bending performance, low working temperature and the like, and is suitable for products such as phototherapy beauty instruments and the like.
In one possible implementation manner, the flexible light-emitting module includes a flexible substrate and an organic light-emitting layer disposed on the flexible substrate, where the organic light-emitting layer is a red light-emitting layer.
In a specific example, the light emitting structure layer may further include a pixel defining layer disposed on the anode layer and the planarization layer, on which pixel openings are disposed, the pixel openings exposing the anode layer, the organic light emitting layer disposed within the pixel openings, and the cathode layer disposed on the organic light emitting layer.
Specifically, the anode layer includes a plurality of independent anodes, forming independent light emitting pixels. Further, the red light emitting layer emits red light under the action of voltages applied by the plurality of independent anode and cathode layers.
The plurality of independent anodes in the embodiment have small spacing and have the advantage of high luminous uniformity.
In another specific example, the anode layer includes an anode that is arranged across the entire surface. Further, the red light emitting layer emits red light under the action of voltage applied by the anode layer and the cathode layer which are distributed on the whole surface.
The anode arranged over the whole surface in this embodiment can further improve the light emission uniformity.
In one possible implementation, the flexible light emitting module includes a flexible substrate and an organic light emitting layer disposed on the flexible substrate, the organic light emitting layer being a white light emitting layer.
In a specific example, the light emitting structure layer may further include a pixel defining layer disposed on the anode layer and the planarization layer, on which pixel openings are disposed, the pixel openings exposing the anode layer, the organic light emitting layer disposed within the pixel openings, and the cathode layer disposed on the organic light emitting layer.
Specifically, the anode layer includes a plurality of independent anodes, forming independent light emitting pixels. Further, the white light emitting layer emits white light under the action of voltages applied by the plurality of independent anode and cathode layers.
The plurality of independent anodes in the embodiment have small spacing and have the advantage of high luminous uniformity.
In another specific example, the anode layer includes an anode that is arranged across the entire surface. Further, the white light emitting layer emits white light under the action of voltage applied by the anode layer and the cathode layer which are distributed on the whole surface.
The anode arranged over the whole surface in this embodiment can further improve the light emission uniformity.
In one possible implementation, the flexible light emitting module further includes a red light filter film disposed on a light emitting side of the flexible organic light emitting panel.
In a specific example, as shown in fig. 2, the flexible light emitting module further includes a red light filter film 109 adhered to the light emitting side of the encapsulation layer 107 through a first optically transparent adhesive layer 108.
In a specific example, the organic light emitting layer is a white light emitting layer, and the red light filter film needs to ensure that the transmittance of light with a wavelength of less than 480nm is less than 0.2%, and the transmittance of light with a wavelength of more than 580nm is more than 90%.
In a specific example, the red light with the wavelength of 620 nm-750 nm has better phototherapy effect.
In a specific example, the organic light emitting layer is a red light emitting layer, and the flexible light emitting module may omit the red light filter.
In a specific example, the organic light emitting layer is a red light emitting layer, and the red light filter film may be used to make red light coordinates redder, and may filter blue light, ultraviolet light, and other "harmful light" bands that may have an effect on the product lifetime.
In one possible implementation, as shown in fig. 2, the flexible light emitting module further includes an encapsulation layer 107 located on a side of the organic light emitting layer remote from the flexible substrate.
In a specific example, the encapsulation layer is a thin film encapsulation layer (Thin Film Encapsulation, TFE) that encapsulates the thin film transistor, light-emitting layer, and other elements.
In a specific example, the packaging layer may include a first packaging layer, a second packaging layer and a third packaging layer that are stacked, where the first packaging layer and the third packaging layer may be made of inorganic materials, the second packaging layer may be made of organic materials, and the second packaging layer is disposed between the first packaging layer and the third packaging layer, so that external moisture may not enter the light emitting structure layer.
In a specific example, the third encapsulation layer is an inorganic barrier layer, and the thickness of the inorganic barrier layer is less than 1 μm.
In a specific example, the thickness of the second encapsulation layer is 1 μm to 16 μm.
In one possible implementation, as shown in fig. 2, the flexible light emitting module further includes a heat conductive adhesive layer 104 for bonding the flexible support layer 103 and the flexible organic light emitting panel.
In a specific example, the flexible supporting layer and the heat conducting adhesive layer are integrally designed, wherein the heat conducting adhesive layer mainly plays roles of soaking and heat conduction, and the temperature rise possibly caused by the organic light-emitting layer is transferred to the flexible supporting layer through the heat conducting adhesive and then to the machine shell for heat dissipation.
In a specific example, the area and the outer contour of the heat conductive adhesive layer should be smaller than the area and the outer contour of the flexible supporting layer, respectively.
In a specific example, fig. 7 is a schematic diagram showing the bonding of the double-sided adhesive layer, the flexible supporting layer and the heat conducting adhesive layer in the phototherapy cosmetic instrument according to the embodiment of the invention; fig. 8 is a front view showing the attachment of the double-sided adhesive layer, the flexible supporting layer and the heat conductive adhesive layer in the phototherapy cosmetic instrument according to the embodiment of the invention. In fig. 8, the area of the flexible supporting layer 103 is shrunk by a first preset value 1043 to obtain the area of the heat conducting glue layer 104, for example, the first preset value 1043 takes a value of 5%, that is, the area of the heat conducting glue layer 104 is kept to be 95% of the area of the flexible supporting layer 103.
In a specific example, as shown in fig. 2, the flexible light emitting module further includes a back film layer 105 attached on the back surface of the light emitting structure layer 106 by a pressure sensitive adhesive, and the back film layer 105 planarizes the light emitting structure layer 106 and protects the organic light emitting layer 106.
In one possible implementation, the flexible light emitting module further includes a protective film disposed on a light emitting side of the flexible organic light emitting panel.
In a specific example, as shown in fig. 2, the flexible light emitting module further includes a protective film 1011 adhered to the light emitting side of the red light filter film 109 through a second optically transparent adhesive layer 1010.
In a specific example, as shown in fig. 2, the protective film 1011 is a high transmittance protective film for ensuring an optical transmittance of 90% or more.
In one possible implementation, as shown in fig. 3, a top view of a flexible supporting layer in a phototherapy device according to an embodiment of the present invention is shown, where the flexible supporting layer 103 in fig. 3 includes a bending area 402 and a non-bending area 401, and the bending area 402 is provided with a plurality of openings 403.
In a specific example, the material of the flexible support layer includes, but is not limited to, alloy metal material, polymer composite material, ceramic material, and the like.
In a specific example, the flexible support layer includes a thin metal or polymer material with high rigidity, which may be stainless steel (Steel Use Stainless, SUS), titanium alloy, carbon fiber, etc., and may be etched or laser-treated.
In a specific example, the flexible support layer is an ultrathin flexible support layer, such as SUS, titanium alloy, carbon fiber material, and the like, having a thickness of 0.2mm or less.
The flexible supporting layer in this embodiment is used for enhancing the structural strength of the flexible light emitting module and dissipating heat at the same time.
In a specific example, as shown in fig. 2, an etching area 1012 is disposed in the flexible supporting layer 103, where the etching area 1012 is a special-shaped area where the opening 403 is required to be formed in the vertical direction of the flexible light emitting module, so as to make the phototherapy cosmetic instrument more easily adhere to the skin of a face.
In a specific example, the flexible light emitting module has a bending region, and it is particularly pointed out that the width of the etched region is ideally greater than or equal to the width of the actual bending region, so as to avoid stress concentration at the edge of the bending region.
In a specific example, the etching method of the etching region may be divided into three modes of complete etching, half etching and gradual etching according to practical application scenarios, and the arrangement is not limited.
In a specific example, fig. 4 is a front view of an opening formed by completely etching a flexible support layer in a phototherapy cosmetic instrument according to an embodiment of the present invention. Fig. 4 includes a plurality of first openings 4031 etched by the complete etching method, where the plurality of first openings 4031 are a plurality of through holes, and depths W 1、W2, … …, and Wn of the plurality of through holes are equal to a thickness W of the flexible supporting layer, that is, W 1＝W2 = … … =wn=w, where n is the number of first openings.
In a specific example, fig. 5 is a front view of an opening formed by half etching a flexible support layer in a phototherapy cosmetic instrument according to an embodiment of the present invention. Fig. 5 includes a plurality of second openings 4032 etched by the half etching method, where a depth W 1 ,、W2 ,、……、Wn, of the second plurality of openings 4032 is smaller than a thickness W of the flexible supporting layer, that is, W 1 ,＝W2 ,＝……＝Wn,<W,n, is the number of second openings.
In a specific example, fig. 6 is a front view showing that the flexible support layer is formed with an opening by gradual etching in the phototherapy cosmetic instrument according to the embodiment of the present invention. Fig. 6 includes a plurality of third openings etched by the graded etching method, where the plurality of third openings includes, for example, a first opening 4031 and a second opening 4032, and a depth W 1 ,,、W2 ,,、……、Wn,, of the plurality of second openings is less than or equal to a thickness W of the flexible supporting layer, that is, W 1 ,,＝W2 ,,＝……＝Wn,,≤W,n,, is a number of third openings.
In a possible implementation manner, as shown in fig. 9, a schematic diagram of coating a waterproof glue layer in a phototherapy device according to an embodiment of the present invention is shown, and the flexible light emitting module in fig. 9 further includes a waterproof glue layer 1014 for packaging a side surface of the flexible light emitting module.
In a specific example, as shown in fig. 9, the phototherapy cosmetic apparatus further includes a case 101 and a double-sided adhesive layer 102, and the double-sided adhesive layer 102 is used to adhere the flexible supporting layer 103 to the case 101. Further, fig. 9 also includes a flexible display panel 1067.
In a specific example, as shown in fig. 9, the waterproof glue packaging coating area of the waterproof glue layer 1014 preferably covers from the housing 101 to the red light filter film 109.
In a specific example, as shown in fig. 7 and 8, the area of the flexible supporting layer 103 is shrunk by a second preset value 1023 to obtain the area of the double-sided adhesive layer 102, for example, the second preset value is 5%, that is, the area of the double-sided adhesive layer 102 is kept to be 95% of the area of the flexible supporting layer 103.
The flexible light-emitting module of the embodiment can realize a surface light source light-emitting module with high light-emitting uniformity, has the advantages of good bending performance, low working temperature and the like, and is suitable for products such as phototherapy beauty instruments and the like.
It should be noted that, the flexible light emitting module in the phototherapy cosmetic apparatus provided in this embodiment may also be applied to other light emitting products, such as a red light therapeutic apparatus for assisting postoperative healing.
Another embodiment of the present invention provides a method for preparing a phototherapy cosmetic apparatus, the method comprising S10: preparing a flexible organic light-emitting panel for emitting red light;
s20: preparing a flexible light emitting module, wherein the flexible light emitting module comprises a flexible supporting layer positioned on the backlight side of the flexible organic light emitting panel;
s30: and carrying out shell application and waterproof glue layer coating on the flexible light-emitting module to obtain the phototherapy beauty instrument.
In a specific example, fig. 2 includes a housing 101, a double-sided adhesive layer 102, a flexible support layer 103, a thermally conductive adhesive layer 104, a back film layer 105, a light emitting structure layer 106, an encapsulation layer 107, a first optically transparent adhesive layer 108, a red light filter film 109, a second optically transparent adhesive layer 1010, a protective film 1011, and a waterproof adhesive layer 1014.
Further, fig. 2 further includes providing an etching area 1012 in the flexible supporting layer 103, where the etching area 1012 is a special-shaped area where the opening 403 needs to be formed in the vertical direction of the flexible supporting layer 103.
In one specific example, the housing 101 in FIG. 2 is a contoured housing, the thickness of which is typically greater than 1mm depending on the end product design; the thickness of the double-sided adhesive layer 102 is 0.25 mm-1 mm; the thickness of the flexible supporting layer 103 is 0.1 mm-1 mm; the thickness of the heat conducting glue layer 104 is 0.025 mm-2 mm; the thickness of the back film layer 105 is 0.05 mm-1.5 mm; the thickness of the light-emitting structure layer 106 is 0.02mm to 1mm; the thickness of the encapsulation layer 107 is 0.02 mm-1 mm; the thickness of the first optical transparent adhesive layer 108 is 0.05 mm-1 mm; the thickness of the red light filter film 109 is 0.025 mm-1 mm; the thickness of the second optical transparent adhesive layer 1010 is 0.05 mm-1 mm; the protective film 1011 is a high-permeability filter protective film, and the thickness of the high-permeability filter protective film is 0.025 mm-1 mm.
In a specific example, the projected areas of the film layers in the phototherapy cosmetic apparatus shown in fig. 2 have the following size relationship: the shell 101 is more than or equal to the light-emitting structure layer 106 is more than or equal to the red light filter film 109 is more than or equal to the protective film 1011> and the first optical transparent adhesive layer 108 and the second optical transparent adhesive layer 1010 are more than or equal to the heat conducting adhesive layer 104; further, the outer shell 101 is more than or equal to the flexible supporting layer 103 is more than or equal to the double-sided adhesive layer 102.
The flexible light-emitting module of the embodiment can realize a surface light source light-emitting module with high light-emitting uniformity, has the advantages of good bending performance, low working temperature and the like, and is suitable for products such as phototherapy beauty instruments and the like.
In a specific example, step S10 includes:
S101: providing a flexible substrate;
S102: forming a wiring layer;
s103: forming a light-emitting structure layer;
S104: forming the encapsulation layer.
In a specific example, step S102 includes: and forming a barrier layer on the flexible substrate, and forming a wiring layer on the barrier layer.
In a specific example, step S103 includes: and coating a flat film on the flexible substrate, and patterning the flat film through a patterning process to form a flat layer. And depositing an anode film on the flexible substrate, and patterning the anode film through a patterning process to form an anode layer. And coating a pixel definition film on the flexible substrate, and forming a pixel definition layer through masking, exposing and developing processes. The pixel defining layer is formed with a plurality of pixel openings exposing the anode layer. An organic light emitting layer is formed in the pixel opening formed as described above, and the organic light emitting layer is connected to the anode layer. Then, a cathode film is deposited, the cathode film is patterned through a patterning process, and a cathode layer is formed, and is in contact with the organic light emitting layer.
In an alternative implementation manner, the flexible light-emitting module comprises a flexible substrate and an organic light-emitting layer arranged on the flexible substrate, wherein the organic light-emitting layer is a red light-emitting layer.
In a specific example, the light emitting structure layer may further include a pixel defining layer disposed on the anode layer and the planarization layer, on which pixel openings are disposed, the pixel openings exposing the anode layer, the organic light emitting layer disposed within the pixel openings, and the cathode layer disposed on the organic light emitting layer.
Specifically, the anode layer includes a plurality of independent anodes, forming independent light emitting pixels. Further, the red light emitting layer emits red light under the action of voltages applied by the plurality of independent anode and cathode layers.
The plurality of independent anodes in the embodiment have small spacing and have the advantage of high luminous uniformity.
In another specific example, the anode layer includes an anode that is arranged across the entire surface. Further, the red light emitting layer emits red light under the action of voltage applied by the anode layer and the cathode layer which are distributed on the whole surface.
The anode arranged over the whole surface in this embodiment can further improve the light emission uniformity.
In an alternative implementation manner, the flexible light-emitting module comprises a flexible substrate and an organic light-emitting layer arranged on the flexible substrate, wherein the organic light-emitting layer is a white light-emitting layer.
In a specific example, the light emitting structure layer may further include a pixel defining layer disposed on the anode layer and the planarization layer, on which pixel openings are disposed, the pixel openings exposing the anode layer, the organic light emitting layer disposed within the pixel openings, and the cathode layer disposed on the organic light emitting layer.
Specifically, the anode layer includes a plurality of independent anodes, forming independent light emitting pixels. Further, the white light emitting layer emits white light under the action of voltages applied by the plurality of independent anode and cathode layers.
The plurality of independent anodes in the embodiment have small spacing and have the advantage of high luminous uniformity.
In another specific example, the anode layer includes an anode that is arranged across the entire surface. Further, the white light emitting layer emits white light under the action of voltage applied by the anode layer and the cathode layer which are distributed on the whole surface.
The anode arranged over the whole surface in this embodiment can further improve the light emission uniformity.
In one possible implementation, the flexible light emitting module further includes a red light filter film disposed on a light emitting side of the flexible organic light emitting panel.
In a specific example, as shown in fig. 2, the flexible light emitting module further includes a red light filter film 109 adhered to the light emitting side of the encapsulation layer 107 through a first optically transparent adhesive layer 108.
In a specific example, the organic light emitting layer is a white light emitting layer, and the red light filter film needs to ensure that the transmittance of light with a wavelength of less than 480nm is less than 0.2%, and the transmittance of light with a wavelength of more than 580nm is more than 90%.
In a specific example, the red light with the wavelength of 620 nm-750 nm has better phototherapy effect.
In a specific example, the organic light emitting layer is a red light emitting layer, and the flexible light emitting module may omit the red light filter.
In a specific example, the organic light emitting layer is a red light emitting layer, and the red light filter film may be used to make red light coordinates redder, and may filter blue light, ultraviolet light, and other "harmful light" bands that may have an effect on the product lifetime.
In a specific example, step S104 includes: an encapsulation layer is formed on the cathode layer, and the encapsulation layer may include a stacked structure of an inorganic material, an organic material, and an inorganic material.
In a specific example, step S10 further includes:
s105: and bonding the driving chip and the printed circuit board.
In an alternative example, fig. 10 is a schematic structural diagram of a bonding manner in a phototherapy device according to an embodiment of the present invention. As shown in fig. 10, the flexible organic light emitting panel is bonded with a driving Chip (IC) 1061 and a printed circuit board (Printed Circuit Board, PCB) 1062 through a Chip On Film (COF) 1063.
In an alternative example, fig. 11 is a schematic structural diagram of another bonding mode in the phototherapy device according to the embodiment of the present invention. As shown in fig. 11, the flexible organic light emitting panel bonds the driving chip 1061 and the flexible printed circuit (Flexible Printed Circuit, FPC) 1064 by soldering or adhesion using an anisotropic conductive film (Anisotropic Conductive Film, ACF), and bonds the printed circuit board 1062 through the flexible printed circuit 1064.
In a specific example, step S20 includes:
S201: applying a first optical transparent adhesive layer on the light emergent side of the packaging layer;
S202: a red light filter film is attached to the light emitting side of the first optical transparent adhesive layer;
S203: a second optical transparent adhesive layer is attached to the light emitting side of the red light filter film;
s204: a protective film is attached to the light-emitting side of the second optical transparent adhesive layer;
s205: and forming a flexible supporting layer on the backlight side of the light emitting structure layer.
In a specific example, step S2045 is further included after step S204 and before step S205: and forming a back film layer on the backlight side of the light-emitting structure layer.
In a specific example, step S205 includes: and a flexible supporting layer is attached to one side, far away from the light-emitting structure layer, of the back film layer through a heat conducting adhesive layer.
In a specific example, step S30 includes:
S301: the shell is pasted and coated with a waterproof glue layer, or the whole shell is pasted.
In an alternative example, step S301 includes
S3010: applying a housing to a side of the flexible support layer remote from the flexible organic light emitting panel;
In a specific example, the applying the housing on a side of the flexible support layer remote from the flexible organic light emitting panel includes: and a profiling shell is attached to one side of the flexible supporting layer, which is far away from the flexible organic light-emitting panel, through a double-sided adhesive layer.
S3011: and coating a waterproof adhesive layer from the outer shell to the outer side of the red light filter film.
In an alternative example, step S301 includes
S3020: and coating a waterproof glue layer on the flexible light-emitting module and attaching the whole shell.
In an alternative implementation, the process flows of S10, S201, S202, S203, S204, S205, S3010, and S3011 may be sequentially performed to prepare the phototherapy cosmetic instrument.
In another alternative implementation, the process flows of S10, S205, S3010, S201, S202, S203, S204, and S3011 may be sequentially performed to prepare the phototherapy cosmetic instrument.
In yet another alternative implementation, the process flows of S10, S201, S202, S203, S204, S205, and S3020 may be sequentially performed to prepare the phototherapy cosmetic instrument.
The phototherapy beauty instrument of the embodiment can realize the surface light source light-emitting module with high light-emitting uniformity, and has the advantages of good bending performance, low working temperature and the like.
It should be apparent that the foregoing examples of the present disclosure are merely illustrative of the present disclosure and not limiting of the embodiments of the present disclosure, and that various other changes and modifications may be made by one of ordinary skill in the art based on the foregoing description, and it is not intended to be exhaustive of all embodiments, and all obvious changes and modifications that come within the scope of the present disclosure are intended to be embraced by the technical solution of the present disclosure.
Claims (10)
1. The flexible light-emitting module is characterized by comprising a flexible organic light-emitting panel and a flexible supporting layer positioned on the backlight side of the flexible organic light-emitting panel, wherein the flexible organic light-emitting panel is used for emitting red light.
2. The flexible light emitting module of claim 1, wherein the flexible light emitting module comprises a flexible substrate and an organic light emitting layer disposed on the flexible substrate, the organic light emitting layer being a red light emitting layer.
3. The flexible light emitting module of claim 1, wherein the flexible light emitting module comprises a flexible substrate and an organic light emitting layer disposed on the flexible substrate, the organic light emitting layer being a white light emitting layer.
4. A flexible light emitting module as recited in claim 2 or 3, further comprising a red light filter disposed on the light emitting side of the flexible organic light emitting panel.
5. A flexible light emitting module as recited in claim 2 or claim 3, further comprising an encapsulation layer on a side of the organic light emitting layer remote from the flexible substrate.
6. The flexible lighting module of claim 1, further comprising a thermally conductive adhesive layer for bonding the flexible support layer to the flexible organic lighting panel.
7. The flexible light emitting module of claim 1 further comprising a protective film disposed on the light emitting side of the flexible organic light emitting panel.
8. The flexible lighting module of claim 1, wherein the flexible support layer comprises a inflection region and a non-inflection region, the inflection region having a plurality of openings.
9. The flexible lighting module of claim 1, further comprising a waterproof glue layer for encapsulating sides of the flexible lighting module.
10. Phototherapy cosmetic apparatus comprising a flexible lighting module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410185878.0A CN118022196A (en) | 2024-02-19 | 2024-02-19 | Flexible light-emitting module and phototherapy beauty instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410185878.0A CN118022196A (en) | 2024-02-19 | 2024-02-19 | Flexible light-emitting module and phototherapy beauty instrument |
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| Publication Number | Publication Date |
|---|---|
| CN118022196A true CN118022196A (en) | 2024-05-14 |
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|---|---|---|---|
| CN202410185878.0A Pending CN118022196A (en) | 2024-02-19 | 2024-02-19 | Flexible light-emitting module and phototherapy beauty instrument |
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| Country | Link |
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| CN (1) | CN118022196A (en) |
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- 2024-02-19 CN CN202410185878.0A patent/CN118022196A/en active Pending
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