CN113082544A

CN113082544A - Mask type phototherapy beauty instrument, manufacturing method thereof and display panel

Info

Publication number: CN113082544A
Application number: CN202110507520.1A
Authority: CN
Inventors: 李传勇; 陈腾; 胡振文; 王彬; 龚雪瑞; 贾群; 周明楠; 杨超; 喻勇; 张昌
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-07-09
Anticipated expiration: 2041-05-10
Also published as: CN113082544B

Abstract

The disclosure relates to a mask type phototherapy beauty instrument, a manufacturing method thereof and a display panel, and belongs to the field of beauty instruments. Face guard formula phototherapy beauty instrument is including the transparent flexible backup pad, flexible OLED panel and the flexible apron that stack gradually. The flexible supporting plate is used for being attached to the face of a user and is located on one side where the light emitting face of the flexible OLED panel is located. Mask formula phototherapy beauty instrument has a plurality of through-holes, and flexible OLED panel includes a plurality of emitting device and a plurality of dykes and dams group, and a plurality of emitting device distribute between a plurality of dykes and dams group, and each dykes and dams group is around a through-hole that corresponds in a plurality of through-holes. OLED is the area source, and in the use phototherapy beauty instrument in-process, user's skin all over illumination intensity is more even, improves cosmetic effect.

Description

Mask type phototherapy beauty instrument, manufacturing method thereof and display panel

Technical Field

The disclosure relates to the field of beauty instruments, in particular to a mask type phototherapy beauty instrument, a manufacturing method thereof and a display panel.

Background

The mask type phototherapy beauty instrument emits light with different colors to perform various beauty operations on the skin, such as whitening, acne removal and the like.

In the related art, a mask type phototherapy beauty instrument includes a panel having Light-Emitting diodes (LEDs) therein, which are responsible for Emitting Light to irradiate the skin. The light emitting diode belongs to a point light source, and the point light source has different illumination intensity at each part of the skin of a user, so that each part of the skin is affected by uneven illumination intensity, and the beautifying effect is influenced.

Disclosure of Invention

The embodiment of the disclosure provides a mask type phototherapy beauty instrument, a manufacturing method thereof and a display panel, so that the illumination intensity of all parts of the skin is more uniform, and the beauty effect is improved. The technical scheme is as follows:

in one aspect, the present disclosure provides a mask-type phototherapy beauty treatment instrument, which includes a transparent flexible support plate, a flexible OLED panel, and a flexible cover plate, which are sequentially stacked; the flexible support plate is used for being attached to the face of a user and is positioned on one side where the light emitting surface of the flexible OLED panel is located; the mask type phototherapy beauty instrument is provided with a plurality of through holes; the flexible OLED panel includes a plurality of light emitting devices distributed between the plurality of bank groups, and a plurality of bank groups, each of the bank groups surrounding a corresponding one of the plurality of through holes.

In one implementation of the disclosed embodiment, each bank group of the plurality of bank groups includes a first bank surrounding one of the plurality of through holes and a second bank surrounding the first bank; the first dam and the second dam each include a first dam layer on a substrate, and the second dam further includes a second dam layer on the first dam layer.

In one implementation of the disclosed embodiment, the first bank layer includes a plurality of spaced-apart and concentric turns of isolation dikes, the first and second dikes each including at least one of the plurality of turns of isolation dikes; the width of the top surface of the isolation dike is greater than that of the bottom surface of the isolation dike, the bottom surface of the isolation dike is the surface of the isolation dike in contact with the substrate, and the top surface of the isolation dike is opposite to the bottom surface of the isolation dike.

In an implementation manner of the embodiment of the present disclosure, the isolation dike includes an isolation sub-dike and an isolation ring located on the isolation sub-dike, and a ring of isolation rings is stacked on the isolation sub-dike, in a first plane, an orthographic projection of the isolation sub-dike is located inside an orthographic projection of the supported isolation ring, and the first plane is a plane where a surface of the flexible support plate when the flexible support plate is not folded is located.

In one implementation of the disclosed embodiment, each bank group of the plurality of bank groups further comprises a third bank surrounding the second bank; the third dam includes the first dam layer on a substrate.

In one implementation of the disclosed embodiment, the flexible OLED panel further includes an encapsulation layer stacked on the bank group and the light emitting device; in the area where the second dam is located and the area between the second dam and the corresponding through hole, the encapsulation layer comprises a first inorganic encapsulation layer and a second inorganic encapsulation layer which are sequentially stacked; in the region between the second dam bars, the encapsulation layer includes a first inorganic encapsulation layer, an inkjet printing layer, and a second inorganic encapsulation layer, which are sequentially stacked.

In one implementation of the embodiment of the present disclosure, the flexible OLED panel further includes a substrate, a routing layer, a planarization layer, an anode layer, a pixel defining layer, a light emitting layer, and a cathode layer, which are sequentially stacked on the flexible support plate along a direction away from the flexible support plate, the cathode layer having a reflectivity; or, the flexible OLED panel further comprises a substrate, a wiring layer, a planarization layer, a reflection layer, an anode layer, a pixel defining layer, a light emitting layer and a cathode layer which are sequentially stacked on the flexible cover plate along a direction far away from the flexible cover plate.

In an implementation manner of the embodiment of the present disclosure, the routing layer includes a plurality of routing lines, the plurality of routing lines are electrically connected to the anode layer, and the color of the pixel to which the anode connected to the same routing line belongs is the same.

In one implementation of the embodiment of the present disclosure, the first bank layer is the same layer as the planarization layer; or the first dam layer and the routing layer are on the same layer; or, the first dam layer is a polyimide layer.

In one implementation of the disclosed embodiment, the flexible OLED panel further includes a plurality of circles of crack isolation dikes, any one of the plurality of circles of crack isolation dikes surrounding a corresponding one of the plurality of through holes, one of the bank groups surrounding one of the plurality of circles of crack isolation dikes; the multi-turn crack isolation dam comprises an insulating layer and a crack isolation layer which are sequentially stacked on a substrate; the insulating layer is provided with a plurality of circles of first annular grooves which are spaced and concentric around the through hole, the crack isolation layer comprises a crack isolation ring which surrounds the through hole, the bottom of the crack isolation ring is provided with a plurality of circles of annular bulges which correspond to the plurality of circles of first annular grooves one by one, and the plurality of circles of annular bulges are positioned in the plurality of circles of first annular grooves.

In one implementation of the disclosed embodiment, the plurality of vias includes at least one of: a plurality of air holes, two eye relief holes and one oronasal relief hole; mask formula phototherapy beauty instrument still includes the printing ink layer, the printing ink layer is located between flexible OLED panel and the flexible backup pad, the printing ink layer include with two eyes dodge two first printing ink rings of hole one-to-one, in the first plane, the orthographic inner boundary of two first printing ink rings respectively with two eyes dodge the edge coincidence in hole, the first plane does the plane at surface place when the flexible backup pad is not folded.

In one implementation of the disclosed embodiment, the ink layer further includes a second ink ring and a third ink ring; the second ink ring is located at the edge of the one oral-nasal avoidance hole, and the third ink ring is located at the edge of the flexible OLED panel.

In one implementation of the embodiments of the present disclosure, the mask-type phototherapy beauty treatment apparatus further includes: an isolation layer between the flexible OLED panel and the flexible cover sheet.

In another aspect, the present disclosure provides a method for manufacturing a mask type phototherapy beauty instrument, the method including: providing a transparent flexible support plate, wherein the flexible support plate is used for fitting the face of a user; forming a flexible OLED panel on the flexible support plate, wherein the flexible support plate is positioned on one side of the light emergent surface of the flexible OLED panel; forming a flexible cover sheet over the flexible OLED panel.

In another aspect, the present disclosure provides a display panel having a plurality of through holes, the display panel including a plurality of light emitting devices distributed among the plurality of through holes and at least one bank group, each of the at least one bank group surrounding a corresponding one of the plurality of through holes, at least one of the plurality of through holes being surrounded by a corresponding one of the at least one bank group.

In one implementation of the disclosed embodiment, each bank group of the at least one bank group includes at least one ring of first banks surrounding a corresponding one of the plurality of through-holes and a ring of second banks surrounding the at least one ring of first banks; the width of the top surface of the first dam is greater than the width of the bottom surface of the first dam, the bottom surface of the first dam is a surface close to the substrate, the width of the top surface and the width of the bottom surface of the first dam are both the radial dimension of the first dam, and the height of the second dam is greater than the height of the first dam.

In an implementation manner of the embodiment of the present disclosure, the first bank includes a circle of first barrier rings and a circle of second barrier rings stacked on the substrate in sequence, an orthogonal projection of the first barrier ring on a first plane is located inside an orthogonal projection of the second barrier ring carried on the first plane, the first plane is a plane where a surface of the display panel when the display panel is not folded is located, the material of the first barrier ring includes at least one of a metal, an organic material, and an inorganic material, and the material of the second barrier ring includes at least one of an inorganic material and an organic material; the second dam comprises a circle of third barrier ring, a circle of fourth barrier ring and a circle of fifth barrier ring which are sequentially stacked on the substrate, the material of the third barrier ring is the same as that of the first barrier ring, the material of the fourth barrier ring is the same as that of the second barrier ring, and the material of the fifth barrier ring is an organic material.

In one implementation of the disclosed embodiment, each of the at least one bank further comprises at least one ring of third banks surrounding the second bank; the structure of the third dam is the same as that of the first dam.

In one implementation of the embodiment of the present disclosure, the display panel further includes at least one crack isolation dam, and any one of the at least one crack isolation dam surrounds a corresponding one of the plurality of through holes and is located in a dam group corresponding to the surrounded through hole.

In one implementation of an embodiment of the present disclosure, the crack isolation dam includes a plurality of spaced and concentric rings of inorganic rings and a ring of organic rings; the organic ring covers the multiple circles of inorganic rings and is filled between any two adjacent circles of inorganic rings in the multiple circles of inorganic rings.

The beneficial effects brought by the technical scheme provided by the embodiment of the disclosure at least comprise:

the mask formula phototherapy beauty instrument that this disclosed embodiment provided adopts flexible OLED panel as the light source, and OLED is the area source, uses phototherapy beauty instrument in-process, and user's skin is illuminated intensity everywhere more even, improves cosmetic effect. Simultaneously when using mask formula phototherapy beauty instrument, need all have the flexibility with flexible backup pad laminating in user's face, flexible backup pad, flexible OLED panel and flexible apron, make mask formula phototherapy beauty instrument can laminate at user's face, each part of flexible OLED panel is the same apart from user's facial distance, and user's skin receives illumination intensity everywhere more even, further improves cosmetic effect. Arrange the through-hole in mask formula phototherapy beauty instrument, can increase mask formula phototherapy beauty instrument's gas permeability, reduce the sense of oppression of user in the use. And arranging dam groups in the flexible OLED panel, wherein each dam group surrounds one through hole to block water and oxygen and reduce the corrosion of the light-emitting device caused by the water and oxygen entering the flexible panel from the through holes.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a top view of a mask-type phototherapy beauty instrument provided by an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;

fig. 3 is a schematic structural diagram of a flexible OLED panel provided in an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view B-B of FIG. 3;

FIG. 5 is a schematic illustration of light propagation provided by embodiments of the present disclosure;

FIG. 6 is a diagram of film layers of a flexible OLED panel provided by an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a light emitting layer provided in an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a routing layer according to an embodiment of the disclosure;

fig. 9 is a flowchart of a method for manufacturing a mask-type phototherapy beauty instrument according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a flexible OLED panel provided by an embodiment of the present disclosure during a manufacturing process;

FIG. 11 is a schematic structural diagram of a flexible OLED panel provided by an embodiment of the present disclosure during a manufacturing process;

FIG. 12 is a schematic structural diagram of a flexible OLED panel provided by an embodiment of the present disclosure during a manufacturing process;

FIG. 13 is a schematic structural diagram of a flexible OLED panel provided by an embodiment of the present disclosure during a manufacturing process;

FIG. 14 is a schematic structural diagram of a flexible OLED panel provided by an embodiment of the present disclosure during a manufacturing process;

FIG. 15 is a schematic structural diagram of a flexible OLED panel provided by an embodiment of the present disclosure during a manufacturing process;

FIG. 16 is a schematic structural diagram of a flexible OLED panel provided by an embodiment of the present disclosure during a manufacturing process;

FIG. 17 is a schematic structural diagram of a flexible OLED panel provided by an embodiment of the present disclosure during a manufacturing process;

FIG. 18 is a schematic structural diagram of a flexible OLED panel provided by an embodiment of the present disclosure during a manufacturing process;

fig. 19 is a flowchart of a method for manufacturing an encapsulation layer according to an embodiment of the disclosure;

FIG. 20 is a schematic structural diagram of an encapsulation layer provided by an embodiment of the disclosure during a manufacturing process;

FIG. 21 is a schematic structural diagram of an encapsulation layer provided by an embodiment of the disclosure during a manufacturing process;

FIG. 22 is a schematic structural diagram of an encapsulation layer provided by an embodiment of the disclosure during a manufacturing process;

FIG. 23 is a schematic structural diagram of a flexible OLED panel provided by an embodiment of the present disclosure during a manufacturing process;

fig. 24 is a schematic structural diagram of a mask-type phototherapy beauty treatment apparatus provided by an embodiment of the present disclosure during a manufacturing process;

fig. 25 is a top view of a display panel provided by an embodiment of the present disclosure;

fig. 26 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Fig. 1 is a top view of a mask type phototherapy beauty instrument provided by an embodiment of the present disclosure. Referring to fig. 1, the outer contour of the mask type phototherapy beauty instrument is oval and similar to the outer contour of a human face, so that the mask type phototherapy beauty instrument can cover the human face, and the light emitted by the mask type phototherapy beauty instrument irradiates the human face to realize beauty.

The mask type phototherapy beauty instrument provided by the embodiment of the disclosure can be used for beauty treatment of other parts of the body besides the face, and the disclosure does not limit the beauty treatment, for example, the beauty treatment of the arms.

As shown in fig. 1, the mask type phototherapy beauty instrument has a plurality of through holes 40, which can be used as ventilation holes. In the embodiment of the disclosure, the through holes 40 are arranged in the mask type phototherapy beauty instrument, so that the air permeability of the mask type phototherapy beauty instrument can be increased, the sense of suffocation of a user in the using process is reduced, and the user experience is improved.

Fig. 2 is a schematic cross-sectional view taken along the plane a-a in fig. 1. Referring to fig. 2, the mask type phototherapy beauty treatment instrument includes a transparent flexible support plate 10, a flexible OLED (Organic Light-Emitting Diode) panel 20, and a flexible cover plate 30, which are sequentially stacked. The flexible support plate 10 is used for being attached to the face of a user, the flexible support plate 10 is located on one side of the light exit surface of the flexible OLED panel 20, and light emitted by the flexible OLED panel 20 can pass through the flexible support plate 10 to irradiate the skin of the user. The light emitting surface of the flexible OLED panel 20 is a light emitting surface of the flexible OLED panel 20.

Fig. 3 is a schematic structural diagram of a flexible OLED panel provided in an embodiment of the present disclosure. Referring to fig. 3, the flexible OLED panel 20 includes a plurality of light emitting devices 21 and a plurality of bank groups 22, the plurality of light emitting devices 21 being distributed between the plurality of bank groups 22, each bank group 22 surrounding a corresponding one of the plurality of through holes 40. Each bank 22 surrounds a corresponding one of the plurality of through holes 40 indicating that one bank 22 surrounds one through hole 40, and the through holes 40 surrounded by different banks 22 are different.

The face guard formula phototherapy beauty instrument that this disclosed embodiment provided adopts flexible OLED panel 20 as the light source, and OLED is the area source, uses phototherapy beauty instrument in-process, and user's skin is illuminated intensity everywhere more even, improves cosmetic effect. When using mask formula phototherapy beauty instrument simultaneously, need laminate flexible support plate 10 in user's face, flexible support plate 10, flexible OLED panel 20 and flexible apron 30 all have the flexibility, make mask formula phototherapy beauty instrument can laminate at user's face, and each part of flexible OLED panel 20 is the same apart from user's facial distance, and user's skin receives illumination intensity everywhere more even, further improves cosmetic effect. Arrange through-hole 40 in mask formula phototherapy beauty instrument, can increase mask formula phototherapy beauty instrument's gas permeability, reduce the sense of oppression of user in the use. The bank of banks 22 are arranged in the flexible OLED panel, each bank 22 surrounding one of the through holes 40 to block water and oxygen and reduce the corrosion of the light emitting devices 21 caused by the water and oxygen entering the flexible OLED panel 20 from the through holes 40.

The mask type phototherapy beauty instrument of the embodiment of the present disclosure may also be referred to as a phototherapy mask beauty instrument.

In the embodiment of the present disclosure, the flexible supporting plate 10 may be a Polyimide (PI) layer or a transparent Polyimide (CPI) layer, and the Polyimide and the transparent Polyimide have a lower elastic modulus and a better transparency, so as to ensure the flexibility and the transparency of the flexible supporting plate 10.

In the embodiment of the present disclosure, the flexible support plate 10 may be a laminate of two or more polyimide layers and/or transparent polyimide layers, ensuring the support of the flexible support plate 10.

In the embodiment of the present disclosure, the thickness of the flexible supporting plate 10 may be adjusted to adjust the flexible OLED panel 20 to a neutral layer, so that the flexible OLED panel 20 is not subjected to a bending force or is subjected to a smaller bending force during the bending process of the mask type phototherapy beauty instrument, thereby preventing the flexible OLED panel 20 from being damaged due to a larger bending force. Wherein, the mask type phototherapy beauty instrument has the outer layer stretched and the inner layer extruded in the bending process, a transition layer which is not stretched and not pressed is provided, the stress is almost equal to zero, and the transition layer is called as the neutral layer of the mask type phototherapy beauty instrument.

Illustratively, the thickness of the flexible support plate 10 is between 120 microns and 180 microns. For example, the thickness of the flexible support plate 10 is 150 microns.

In the embodiment of the present disclosure, the flexible cover plate 30 may be a polyimide layer or a polyester layer coated with ink, so as to ensure the opacity of the flexible cover plate 30 and avoid the light leakage of the mask phototherapy beauty instrument from affecting the beauty. Meanwhile, the modulus of the polyimide and the polyester is lower, so that the flexibility of the flexible cover plate 30 is ensured.

Referring to fig. 2, a through-hole (e.g., 402 in fig. 2) of the mask-type phototherapy cosmetic device penetrates the mask-type phototherapy cosmetic device in a direction in which the flexible support plate 10, the flexible OLED panel 20, and the flexible cover plate 30 are stacked.

Referring again to fig. 1, the plurality of through holes 40 include a plurality of ventilation holes 401, and the plurality of ventilation holes 401 are uniformly distributed in the mask type phototherapy beauty instrument.

When using the mask formula phototherapy beauty instrument that this disclosed embodiment provided, in order to guarantee that light carries out abundant shining to skin, live time is generally longer, and user's face is covered by mask formula phototherapy beauty instrument for a long time, and user's face is in probably causing other skin problems in the confined environment for a long time, and bleeder vent 401 can increase mask formula phototherapy beauty instrument's gas permeability, avoids user's face to be in other skin problems that cause in the confined environment for a long time.

In the embodiment of the present disclosure, the ventilation holes 401 are circular holes, and the diameter of the ventilation holes 401 is between 0.8 mm and 1.2 mm, so as to ensure ventilation and prevent the too large ventilation holes 401 from affecting the light emitting area of the mask type phototherapy beauty instrument.

Alternatively, in other embodiments, the vent 401 may also be an elliptical hole, a square hole, or the like.

Referring again to fig. 1, the plurality of through-holes 40 also includes two eye relief holes 402. The two eye relief holes 402 correspond to the eyes of the user's face, respectively.

When being applied to the cosmetic of face with the face formula phototherapy beauty instrument of this disclosure embodiment, need laminate the face formula phototherapy beauty instrument in user's face, the eye dodges hole 402 and passes through the unthreaded hole as user's eye, does not influence the user and carries out other activities when using this face formula phototherapy beauty instrument, for example play cell-phone, watch TV etc. the user of being convenient for uses this face formula phototherapy beauty instrument in different occasions, increases the use scene of this face formula phototherapy beauty instrument.

Referring again to fig. 1, the plurality of through holes 40 further includes an oronasal relief hole 403, one oronasal relief hole 403 corresponding to the mouth and nose of the user's face.

The mouth and nose of avoiding hole 403 as the air vent of the mouth and nose of the user, the convenient to use person breathes, or avoids hole 403 feed etc. through the mouth and nose, and the user of being convenient for uses this mask formula phototherapy beauty instrument in different occasions, increases the use scene of this mask formula phototherapy beauty instrument.

In fig. 1, the mask-type phototherapy beauty treatment apparatus includes air holes 401, eye avoiding holes 402, and mouth-nose avoiding holes 403. In other implementations, the mask-style phototherapy cosmetic device may include only one or two of the ventilation holes 401, the eye relief holes 402, and the mouth-nose relief holes 403.

Referring to fig. 2 again, the mask-type phototherapy beauty instrument further includes an ink layer 50, the ink layer 50 is located between the flexible OLED panel 20 and the flexible support plate 10, the ink layer 50 includes two first ink rings 501 corresponding to the two eye avoiding holes 402 one to one, in a first plane, inner boundaries of orthographic projections of the two first ink rings 501 coincide with edges of the two eye avoiding holes 402, respectively, and the first plane is a plane where a surface (when not used) of the flexible support plate 10 is located.

The first ink ring 501 is arranged around the eye avoiding hole 402 to block light irradiated to human eyes, so that the health state of the human eyes is prevented from being influenced by the light irradiating the human eyes.

In the embodiment of the present disclosure, the width of the first ink ring 501 is between 0.5 mm and 1 mm, which not only ensures that the first ink ring 501 can shield light irradiated to human eyes, but also prevents the light-emitting area of the mask type phototherapy beauty instrument from being reduced due to the too wide first ink ring 501.

In the embodiment of the present disclosure, the ink layer 50 further includes a second ink ring (not shown in the figure), and the second ink ring surrounds the oral-nasal avoidance hole 403, so as to reduce the irradiation of light to the oral and nasal cavities of the person.

In the embodiment of the present disclosure, the ink layer 50 further includes a third ink ring (not shown in the figure), and the third ink ring surrounds the edge of the flexible OLED panel 20, so as to prevent light leakage from the flexible OLED panel 20 from affecting the appearance.

Referring again to fig. 2, the mask-type phototherapy beauty treatment instrument further includes an Optical Clear Adhesive (OCA) layer 70, and the optical Adhesive layer 70 is located between the flexible support plate 10 and the flexible OLED panel 20. The optical glue layer 70 is used to bond the flexible support plate 10 and the flexible OLED panel 20. Meanwhile, the transparency of the optical adhesive layer 70 is good, and light emission from one side of the flexible support plate 10 is not affected.

Referring again to fig. 2, the ink layer 50 is located between the optical adhesive layer 70 and the flexible support plate 10, and the optical adhesive layer 70 has viscosity to fix the position of the first ink ring 501.

In other implementations, the ink layer 50 is located between the optical glue layer 70 and the flexible OLED panel 20.

Referring again to fig. 2, the mask-type phototherapy cosmetic device further includes an isolation layer 60. The isolation layer 60 is located between the flexible OLED panel 20 and the flexible cover sheet 30. The isolation layer 60 can play a role in shielding an electromagnetic field, and the electromagnetic field is prevented from influencing the mask type phototherapy beauty instrument. The isolation layer 60 also plays a role in heat dissipation, and the mask type phototherapy beauty instrument is prevented from being too high in temperature. The isolation layer 60 also plays a role of mechanical buffering, and the damage of the flexible OLED panel 20 caused by the collision of the mask type phototherapy beauty instrument is avoided. The isolation layer 60 also plays a role in shading light, and light is prevented from being emitted from one side of the flexible cover plate, so that the attractiveness of the mask type phototherapy beauty instrument is influenced.

In the disclosed embodiment, the material of the isolation layer 60 may be copper foil.

In other implementations, the material of the isolation layer 60 may be Foam, and the isolation layer 60 mainly plays a role of mechanical buffering and shading, so the isolation layer 60 may also be referred to as Super Cushion Foam (SCF).

Referring again to fig. 2, the mask-type phototherapy beauty treatment instrument further includes a protective Film (Protect Film)80, the protective Film 80 being located between the isolation layer 60 and the flexible OLED panel 20. The protective film 80 serves as a mechanical support and an external force protection.

Illustratively, the protective film 80 may be a polyimide film or a Polyester (PE) film.

Referring again to fig. 3, each of the plurality of bank groups 22 includes a first bank 23, the first bank 23 surrounding the through-hole 40, and a second bank 24, the second bank 24 surrounding the first bank 23.

Each bank group 22 is divided into two types of banks, and the first bank 23 and the second bank 24 sequentially surround the through hole 40, so that both banks can play a role of blocking water and oxygen, further reducing the water and oxygen entering the flexible OLED panel 20 through the through hole 40, and reducing the corrosion of the water and oxygen to the light emitting device 21.

Referring again to fig. 3, each bank group 22 of the plurality of bank groups 22 further includes a third bank 25, the third bank 25 surrounding the second bank 24, the third bank 25 being located between the light emitting device 21 and the second bank 24. The third bank 25 can also function as a water and oxygen blocking function, and the water and oxygen blocking effect of the bank group 22 is improved.

Fig. 4 is a schematic cross-sectional view taken along plane B-B of fig. 3. Referring to fig. 4, each of the first, second, and

third banks

23, 24, and 25 includes a first bank layer 202 on a substrate 201, and the second bank 24 further includes a second bank layer 204 on the first bank layer 202. The second bank layer 204 partitions the first bank 23 and the third bank 25 while forming the second bank 24. The second bank Layer 204 is in the same Layer as a Pixel Definition Layer (PDL) 208, that is, the second bank Layer 204 and the Pixel Definition Layer 208 are fabricated by the same patterning process. In the embodiments of the present disclosure, "the same layer" refers to a relationship between layers formed at the same time in the same step, and the "same layer" does not always mean that the thickness of the layer or the layer in a cross-sectional view is the same.

In the disclosed embodiment, the first bank layer 202 includes a plurality of spaced and concentric turns of the isolation bank 2021, and the first bank 23, the second bank 24, and the third bank 25 each include at least one turn of the isolation bank 2021 of the plurality of turns of the isolation bank 2021. The width L1 of the top surface 2024 of the isolation bank 2021 is greater than the width L2 of the bottom surface 2025 of the isolation bank 2021, the bottom surface 2025 of the isolation bank 2021 is the surface where the isolation bank 2021 and the substrate 201 contact, and the top surface 2024 of the isolation bank 2021 is opposite to the bottom surface 2025 of the isolation bank 2021. Wherein the second bank 24 comprises only one ring of isolation banks 2021.

In the embodiment of the present disclosure, the first bank layer 202 is arranged as a plurality of turns of spaced and concentric isolation banks 2021, and each turn of the isolation banks 2021 may function as a barrier to water and oxygen, reducing corrosion of the light emitting device 21 by water and oxygen. An annular groove 2023 is formed between adjacent isolation dams 2021, and water and oxygen enter the annular groove 2023 after entering the flexible OLED panel 20. The width of the top surface 2024 of the partition bank 2021 is larger than the width of the bottom surface 2025 of the partition bank 2021, so that the opening of the annular groove 2023 becomes small, water and oxygen are not easily discharged in the annular groove 2023, and corrosion of the light emitting device 21 by water and oxygen is reduced.

Referring again to fig. 4, the flexible OLED panel 20 further includes an insulating layer 203.

With reference to fig. 3 and 4, the isolation dike 2021 includes an isolation sub dike 2022 and an isolation ring 2031 located on the isolation sub dike 2022, a ring of the isolation ring 2031 is stacked on the ring of the isolation sub dike 2022, and an orthogonal projection of the isolation sub dike 2022 is located inside an orthogonal projection of the carried isolation ring 2031 in a first plane, which is a plane of a surface of the flexible support plate 10 when it is not folded. The isolation ring 2031 belongs to the insulating layer 203.

In the embodiment of the present disclosure, the stacked spacer rings 2031 are arranged on the spacer bank 2022, and the orthogonal projection of the spacer bank 2022 is located inside the orthogonal projection of the carried spacer ring 2031, so that the width of the top surface of the spacer bank 2021 is larger than the width of the bottom surface of the spacer bank 2021, that is, the opening of the annular groove 2023 becomes smaller.

In the embodiment of the present disclosure, the isolation bank 2021 is composed of an isolation sub-bank 2022 and an isolation ring 2031, and in other implementations, the isolation bank 2021 may include only one layer, that is, the isolation bank with a large top width and a small bottom width is directly formed by a patterning process.

Referring again to fig. 4, second embankment layer 204 includes a blocking sub-embankment 2041 on the first isolating ring, which is a middle one of the isolating rings, and blocking sub-embankment 2041 belongs to second embankment 24. That is, the second bank 24 has a height greater than the first bank 23 and the third bank 25, thereby separating the first bank 23 and the third bank 25.

Referring again to fig. 4, the flexible OLED panel 20 further includes an encapsulation layer 207 stacked on the bank group 22 and the light emitting device 21.

The encapsulation layer 207 includes a first inorganic encapsulation layer 2071 and a second inorganic encapsulation layer 2072, which are sequentially stacked, in a region where the second dam 24 is located and a region between the second dam 24 and the corresponding through hole 40. In the region between the respective second dam banks 24, the encapsulation layer 207 includes a first inorganic encapsulation layer 2071, an Ink Jet Print (IJP) layer 2073 and a second inorganic encapsulation layer 2072, which are sequentially stacked.

In the embodiment of the present disclosure, the encapsulation layer 207 of the flexible OLED panel 20 adopts an encapsulation form of the first inorganic encapsulation layer 2071, the inkjet printing layer 2073 and the second inorganic encapsulation layer 2072, so as to ensure the encapsulation effect of the flexible OLED panel 20. Meanwhile, the blocking sub-dike 2041 is arranged in the second dike layer 204, and the blocking sub-dike 2041 blocks the liquid in the inkjet printing layer 2073, so that the liquid in the inkjet printing layer 2073 is prevented from overflowing to influence the encapsulation effect.

Wherein the second DAM 24 is used to block liquid in the inkjet printed layer 2073, the second DAM 24 may be referred to as IJP DAM. The insulating layer 203 may also be referred to as a Passivation (Passivation) layer.

Referring again to fig. 4, the flexible OLED panel 20 also includes a light emitting layer 205 and a cathode layer 206. In the region where the first bank 23 and the third bank 25 are located, the light emitting layer 205 and the cathode layer 206 are located between the insulating layer 203 and the first inorganic encapsulating layer 2071, and at this time, the first inorganic encapsulating layer 2071 is stacked on the cathode layer 206. In the region where the second bank 24 is located, the blocking sub-bank 2041 passes through the light emitting layer 205 and the cathode layer 206, and the light emitting layer 205 and the cathode layer 206 are covered on the insulating layer 203 around the second bank layer 204, at which time the first inorganic encapsulating layer 2071 is laminated on the second bank layer 204.

Referring to fig. 3 and 4, the flexible OLED panel 20 further includes a plurality of circles of Crack isolation DAMs 26 in one-to-one correspondence with the plurality of through holes 40, one of the plurality of circles of Crack isolation DAMs 26 surrounding one of the plurality of through holes 40, and each of the plurality of DAM banks 22 surrounding one of the plurality of circles of Crack isolation DAMs 26 (Crack DAM) 26.

The flexible OLED panel 20 includes a plurality of through holes 40, and cracks are easily generated at the through holes 40, and when the cracks extend to the region where the light emitting device 21 is located, the stability of the light emitting device 21 is affected. The crack isolation dike 26 isolates the through hole 40 from the dike group 22, so that the crack is prevented from extending to the dike group 22 to influence the stability of the dike group 22, and the effect of blocking water and oxygen cannot be achieved.

Referring again to fig. 4, the multi-turn crack isolation dam 26 includes an insulating layer 203 and a crack isolation layer 211 sequentially stacked on the substrate 201, the crack isolation layer 211 is in the same layer as the pixel defining layer 208, and the crack isolation layer 211 and the pixel defining layer 208 are fabricated by the same patterning process. The insulating layer 203 is provided with a plurality of circles of first annular grooves 2032 which are spaced and concentric around the through hole 40, the crack isolation layer 211 comprises a crack isolation ring 2111 which surrounds the through hole 40, the bottom of the crack isolation ring 2111 is provided with a plurality of circles of annular protrusions 2112 which correspond to the plurality of circles of first annular grooves 2032 one by one, and the plurality of circles of annular protrusions 2112 are positioned in the plurality of circles of first annular grooves 2032.

The flexible OLED panel 20 includes an inorganic layer and an organic layer, for example, the insulating layer 203 is an inorganic layer, the pixel defining layer 208 is an organic layer, the inorganic layer is made of a material that is more prone to crack than the organic layer, and the organic layer is less prone to crack. The insulating layer 203 is typically an inorganic layer, and the crack isolation layer 211 is in the same layer as the pixel defining layer 208, so that the crack isolation layer 211 is an organic layer and is not prone to crack. The portion of the insulating layer 203 surrounding the through hole 40 is arranged into a plurality of circles of first annular grooves 2032, annular protrusions 2112 at the bottoms of the crack isolation rings 2111 are located in the first annular grooves 2032, the annular protrusions 2112 isolate the insulating layer 203, when cracks occur in the insulating layer 203 and extend into the flexible OLED panel 20, the cracks can contact the annular protrusions 2112, the annular protrusions 2112 are made of organic materials and are not prone to crack, and therefore the extension of the cracks is blocked.

Illustratively, the insulating layer 203 is silicon oxide (SiO)₂) Layer or silicon oxynitride (SiN)_x) And (3) a layer.

In the disclosed embodiment, the bank 22 is a barrier to water and oxygen in the radial direction of the through-hole 40. The insulating layer 203 blocks water and oxygen from a direction perpendicular to the substrate 201.

Referring again to fig. 4, in the region where the multiple turns of crack isolation dams 26 are located, the light emitting layer 205 and the encapsulation layer 207 are laminated on the crack isolation layer 211.

Referring again to fig. 4, the flexible OLED panel 20 further includes a Barrier (Barrier) layer 214, and the Barrier layer 214 may block water and oxygen from entering the interior of the flexible OLED panel 20.

Illustratively, the barrier layer 214 is a silicon oxide layer, a silicon nitride layer, or an amorphous silicon (a-Si) layer; alternatively, the barrier layer 214 is a stack of at least two layers of a silicon oxide layer, a silicon nitride layer, and an amorphous silicon layer.

Referring again to fig. 4, the barrier layer 214 has a second annular recess 2141 therein, the second annular recess 2141 communicates with the first annular recess 2032, and the annular protrusion 2112 is located in the first annular recess 2032 and the second annular recess 2141. So that the annular protrusion 2112 can also block cracks in the barrier layer 214.

Referring again to fig. 4, the flexible OLED panel 20 further includes a substrate 201, a routing layer 210, a planarization layer 209, an Anode (Anode) layer 212, a pixel defining layer 208, a light emitting layer 205, and a Cathode (Cathode) layer 206, which are sequentially stacked on the flexible support plate 10 in a direction away from the flexible support plate 10, the Cathode layer 206 having reflectivity. Wherein the routing layer 210, the planarization layer 209, the anode layer 212 and the pixel definition layer 208 are located in the area where the light emitting device 21 is located, and the light emitting layer 205, the cathode layer 206 and the encapsulation layer 207 are located in the whole flexible OLED panel 20.

Fig. 5 is a schematic illustration of light propagation provided by embodiments of the present disclosure. Referring to fig. 5, since the cathode layer 206 is reflective, after reaching the cathode layer 206, the light emitted from the light emitting device 21 is reflected by the cathode layer 206, and the light is emitted from one side of the substrate 201, that is, the flexible OLED panel is a bottom emission panel, so that the light emitting efficiency is high, and the power can be saved under the same brightness.

In the disclosed embodiment, the cathode layer 206 may be a silver (Ag) layer, which is reflective and has a small resistance, saving electrical energy.

In the disclosed embodiment, to improve the reflectivity of the cathode layer 206, the thickness of the cathode layer 206 may be increased. Illustratively, the thickness of the cathode layer 206 ranges from 800 angstroms to 1500 angstroms, so as to avoid the decrease of reflectivity when the cathode layer 206 is too thin, and avoid the thickness of the mask-type phototherapy beauty instrument being affected by too thick the cathode layer 206.

In the embodiment of the present disclosure, the anode layer 212 is an Indium Tin Oxide (ITO) layer, which has good transparency, so as to ensure the transparency of the anode layer 212 and avoid affecting the light emitting efficiency.

In the embodiment of the present disclosure, for the bottom emission panel, the protective film 80 is attached on the second inorganic encapsulation layer 2072.

In the embodiment of the present disclosure, for a bottom emission panel, the substrate 201 may be a polyimide substrate or a transparent polyimide substrate, which ensures transparency of the substrate 201.

The flexible OLED panel shown in fig. 4 is a bottom-emitting panel, and in other implementations, the flexible OLED panel may also be a top-emitting panel.

Fig. 6 is a film layer diagram of a flexible OLED panel provided by an embodiment of the present disclosure. Referring to fig. 6, the flexible OLED panel 20 further includes a substrate 201, a routing layer 210, a planarization layer 209, a reflective layer 213, an anode layer 212, a pixel defining layer 208, a light emitting layer 205, and a cathode layer 206, which are sequentially stacked on the flexible cover plate 30 in a direction away from the flexible cover plate 30. The reflective layer 213 is located throughout the flexible OLED panel 20.

Fig. 4 differs from fig. 6 in that the bottom emitting panel multiplexes the cathode layer 206 into a reflective layer, so that the reflective layer is not separately provided in fig. 4. In the top emission panel, a reflective layer 213 is provided between the planarization layer 209 and the anode layer 212. Light emitted from the light emitting layer 205 passes through the cathode layer 206 and is emitted from one side of the encapsulation layer 207. To improve the light extraction efficiency of the flexible OLED panel, a reflective layer 213 is disposed under the anode layer 212, and if light reaches the reflective layer 213, the light is reflected by the reflective layer 213 and emitted from one side of the encapsulation layer 207. The substrate 201 is laminated on the flexible cover sheet 30, and the encapsulation layer 207 is laminated on the flexible support sheet 10 so that light can be irradiated to the user's face through the flexible support sheet 10.

For the flexible OLED panel shown in fig. 6, the cathode layer 206 is still a silver layer, and in order to avoid the influence of the cathode layer 206 on the light extraction efficiency, the thickness of the cathode layer 206 may be reduced. Illustratively, the thickness of cathode layer 206 is between 30 angstroms and 80 angstroms.

In the disclosed embodiment, for a top emission panel, the substrate 201 may be a polyester substrate or a polyimide substrate or a transparent polyimide substrate.

In one implementation of the disclosed embodiment, the first bank layer 202 is in the same layer as the Planarization (PLN) layer 209. The first bank layer 202 can be formed by the same patterning process as the planarization layer 209 without separately forming a second bank layer 202, thereby simplifying the manufacturing process.

In another implementation manner of the embodiment of the present disclosure, the first dam layer 202 is on the same layer as the routing layer 210, and the manufacturing steps can also be simplified.

In other implementations, the first dam layer 202 is a polyimide layer, and in this case, the first dam layer 202 is not on the same layer as the planarization layer 209 and the routing layer 210, but is a separately fabricated layer.

Fig. 7 is a schematic structural diagram of a light emitting layer provided in an embodiment of the present disclosure. Referring to fig. 7, the light emitting Layer 205 includes a Hole Injection Layer (HIL) 2051, a Hole Transport Layer (HTL) 2052, an excitation Layer (EML) 2053, an Electron Transport Layer (ETL) 2054, and an Electron Injection Layer (EIL) 2055, which are sequentially stacked. The hole injection layer 2051, the hole transport layer 2052, the electron transport layer 2054, and the electron injection layer 2055 are formed using an Open Mask, and the excitation layer 2053 is formed using a high-precision Metal Mask (FMM). The excitation layer 2053 is only located in the region where the light emitting device 21 is located, and the hole injection layer 2051, the hole transport layer 2052, the electron transport layer 2054, and the electron injection layer 2055 are all located on the whole flexible OLED panel, that is, the region where the light emitting device 21 is located and the region where the bank group 22 is located are all provided with the hole injection layer 2051, the hole transport layer 2052, the electron transport layer 2054, and the electron injection layer 2055.

Fig. 8 is a schematic structural diagram of a routing layer according to an embodiment of the disclosure. Referring to fig. 8, the routing layer includes a plurality of traces 2101, a part of the traces 2101 of the plurality of traces 2101 may bypass the through hole 40, the plurality of traces 2101 are electrically connected to the anode layer, and the color of the pixels connected to the same trace 2101 is the same. For example, the pixels connected by the rightmost one of the traces 2101 in fig. 8 are all red pixels 27.

The trace 2101 bypasses the via 40 to connect with the anode of the pixel, and the trace layer is electrically connected with the ELVDD terminal to send an electrical signal to the anode of the pixel, thereby driving the pixel to emit light and illuminating the face of the person. The periphery of the mask type phototherapy beauty instrument is provided with a binding area for arranging a driving circuit, and the driving circuit is provided with an ELVDD terminal. The mask type phototherapy beauty instrument provided by the embodiment of the disclosure is only used for emitting light, and does not need to control the gray scale of pixels, so the flexible OLED panel provided by the embodiment of the disclosure does not need to arrange a complex pixel circuit, and only needs to provide voltage to the anode of the pixels through the wiring 2101 to realize pixel light emission, so in the arrangement direction of the pixels, the anodes of the pixels with the same color can be connected to the same wiring 2101, the number of the wiring in the flexible OLED panel is reduced, and the manufacturing steps are simplified.

In the embodiment of the disclosure, since the wiring layer 210 is electrically connected to the ELVDD terminal, and a Source Drain (SD) layer is electrically connected to the ELVDD terminal in the pixel circuit, the wiring layer 210 may be an SD layer.

Illustratively, the routing layer 210 may be a titanium (Ti) layer or an aluminum (Al) layer, or a stack of titanium, aluminum and titanium (Ti).

In other implementations, the flexible OLED panel may also arrange pixel circuits to control the pixels to emit light.

The red light with wavelength of 620 nm to 630 nm can improve microcirculation of blood system and lymphatic system of skin, stimulate mitochondrial activity in cells, stimulate fiber cells to produce collagen, activate skin, accelerate blood circulation, and remove wrinkles and moisten skin from the inside of skin. The blue light with the wavelength of 450-460 nanometers can penetrate into propionibacterium acnes of skin, rapidly eliminate acnes pustules, synchronously inhibit sebaceous gland secretion, reduce the number of acnes and inflammatory skin lesions, and promote tissue repair. As shown in fig. 8, the pixels include red pixels 27 and blue pixels 28, so that the mask type phototherapy beauty treatment instrument can achieve the above-mentioned beauty effects.

The pixels in the flexible OLED panel and the proportion of the area occupied by each pixel may be arranged according to the cosmetic effect required by the mask type phototherapy cosmetic device, as shown in fig. 8, the pixels further include green pixels 29.

In other implementations, the pixels may also include yellow pixels.

Fig. 9 is a flowchart of a method for manufacturing a mask-type phototherapy beauty instrument according to an embodiment of the disclosure.

Referring to fig. 9, the method includes:

in step S601, a transparent flexible supporting plate is provided, and the flexible supporting plate is used for fitting the face of the user.

In step S602, a flexible OLED panel is formed on a flexible support plate, where the flexible support plate is located on a side where a light emitting surface of the flexible OLED panel is located.

In step S603, a flexible cover sheet is formed on the flexible OLED panel.

In the embodiment of the present disclosure, the mask type phototherapy beauty instrument has a plurality of through holes, the flexible OLED panel includes a plurality of light emitting devices and a plurality of dam groups, each dam group surrounds a corresponding one of the plurality of through holes, and the plurality of light emitting devices are distributed between the plurality of dam groups.

Fig. 10 is a schematic structural diagram of a flexible OLED panel provided in an embodiment of the present disclosure in a manufacturing process. Referring to fig. 10, the method includes:

in step S701, a substrate is provided.

In the embodiment of the present disclosure, the mask type phototherapy beauty instrument has a plurality of through holes, the flexible OLED panel includes a plurality of light emitting devices and a plurality of dam groups, the plurality of light emitting devices are distributed between the plurality of dam groups, and each dam group surrounds a corresponding one of the plurality of through holes. Each of the plurality of dam groups includes a first dam surrounding one of the plurality of through-holes, a second dam surrounding the first dam, and a third dam surrounding the second dam.

Fig. 11 to 18 are schematic structural diagrams of a flexible OLED panel provided in an embodiment of the present disclosure in a manufacturing process. Referring to fig. 11, a substrate 201 is provided. The substrate 201 may be a polyimide substrate or a transparent polyimide substrate.

Referring again to fig. 11, the method may further include: a barrier layer 214 is formed on the substrate 201.

Illustratively, the barrier layer 214 is a silicon oxide layer or a silicon nitride layer or an amorphous silicon layer, or the barrier layer 214 is a stack of at least two of a silicon oxide layer, a silicon nitride layer and an amorphous silicon layer.

Illustratively, the barrier layer 214 may be formed by evaporation.

Referring to fig. 12, the method may further include: a routing layer 210 is formed on the barrier layer 214.

Illustratively, the routing layer 210 may be formed by sputtering.

In step S702, a first dam film is formed on a substrate.

In step S703, the first bank film is patterned to form a first bank layer.

Wherein, first dykes and dams layer includes many rings of interval and concentric isolation dykes and dams, and first dykes and dams, second dykes and dams and third dykes and dams all include at least one ring isolation dykes and dams.

Referring to fig. 13, a first bank film is formed on the side of the routing layer 210 away from the substrate 201, and is patterned to form a planarization layer 209 and a first bank layer, which includes a plurality of turns of spaced and concentric spacer banks 2022.

Illustratively, the first dam film may be patterned by means of etching.

Referring to fig. 14, the method may further include: an anode layer 212 is formed on a side of the planarization layer 209 remote from the substrate 201, the anode layer 212 being electrically connected to the routing layer 210.

In an embodiment of the present disclosure, the method may further include: vias 2091 are formed in planarization layer 209 and anode layer 212 is electrically connected to routing layer 210 through vias 2091.

Illustratively, the anode layer 212 may be formed by sputtering.

In step S704, an insulating film is formed on the first bank layer.

In step S705, an insulating film is patterned to form an insulating layer.

The insulating layer comprises a plurality of circles of concentric isolating rings at intervals, a circle of isolating rings is stacked on a circle of isolating sub-dike dam, the orthographic projection of the isolating sub-dike dam is located inside the orthographic projection of the loaded isolating rings on a first plane, and the first plane is a plane where the surface of the flexible supporting plate is not folded.

Referring to fig. 15, when the display device includes the anode layer 212, an insulating film is formed on the anode layer 212, and after the insulating film on the anode layer 212 is patterned, a plurality of rings 2031 are formed concentrically and at intervals in the regions corresponding to the plurality of banks, and a ring of spacer 2031 is stacked on a ring of spacer sub-banks 2022, and in a first plane, the orthographic projection of the spacer sub-banks 2022 is located inside the orthographic projection of the supported spacer 2031, so as to form the spacer banks 2021. While forming a first annular groove 2032 in a region corresponding to the crack isolation ring. The barrier layer 214 is patterned in the region corresponding to the crack isolation ring and the region corresponding to the through hole, the barrier layer 214 in the region corresponding to the through hole is etched away, a second annular groove 2141 is formed in the region corresponding to the crack isolation ring, and the second annular groove 2141 is communicated with the first annular groove 2032.

As shown in fig. 15, the insulating film on the spacer sub-bank 2022 adjacent to the second ring-shaped groove 2141 extends in the direction of the substrate 201 along the sidewall of the spacer sub-bank 2022. The insulating film on the spacer bank 2022 adjacent to the anode layer 212 also extends in the direction of the substrate 201 along the sidewall of the spacer bank 2022.

Illustratively, the insulating film may be patterned by etching.

In an embodiment of the present disclosure, the method further includes:

in step S706, a pixel defining layer film is formed on a side of the isolation ring away from the substrate.

In step S707, the pixel defining layer thin film is patterned to form a second bank layer in a region corresponding to the second bank and a pixel defining layer in a region corresponding to the light emitting device.

Referring to fig. 16, the pixel defining layer thin film is patterned to form a second bank layer 204 in a region corresponding to the second bank and a pixel defining layer 208 in a region corresponding to the light emitting device, as shown in fig. 16, the second bank layer 204 includes a blocking sub-bank 2041, and the pixel defining layer 208 includes a bank structure 2080 corresponding to each light emitting device. Meanwhile, a crack isolation ring 2111 is formed in a region corresponding to the crack isolation dam, and the annular protrusion 2112 at the bottom of the crack isolation ring 2111 is located in the first annular groove 2032 and the second annular groove 2141.

Illustratively, the thin film of the pixel defining layer may be patterned by etching.

In step S708, a light-emitting layer is formed on the second bank layer and the side of the pixel defining layer away from the substrate.

Referring to fig. 17, a light-emitting layer 205 is formed on the second bank layer 204 and the pixel defining layer 208 on the side away from the substrate 201.

Illustratively, the light emitting layer 205 may be formed by evaporation.

In step S709, a cathode layer is formed on a side of the light emitting layer away from the substrate.

Referring to fig. 18, a cathode layer 206 is formed on the side of the light emitting layer 205 remote from the substrate. The cathode layer 206 is provided in both the region where the light emitting device 21 is located and the region where the plurality of bank groups 22 are located.

Illustratively, the cathode layer 206 may be formed by evaporation.

In step S710, an encapsulation layer is formed on a side of the cathode layer away from the substrate.

In step S711, the substrate is attached to the flexible support plate.

Fig. 19 is a flowchart of a method for manufacturing an encapsulation layer according to an embodiment of the disclosure. Referring to fig. 19, step S710 includes:

in step S801, a first inorganic encapsulation layer is formed on a side of the cathode layer away from the substrate.

The first inorganic encapsulation layer is positioned on the cathode layer in a region corresponding to the light emitting device, a region corresponding to the first bank, and a region corresponding to the third bank, and the first inorganic encapsulation layer is positioned on the second bank in a region corresponding to the second bank.

Fig. 20 to 22 are schematic structural diagrams of an encapsulation layer provided by an embodiment of the disclosure in a manufacturing process. Referring to fig. 20, a first inorganic encapsulation layer 2071 is formed on a side of the cathode layer 206 away from the substrate 201, the first inorganic encapsulation layer 2071 is positioned on the cathode layer 206 in a region corresponding to the light emitting device, a region corresponding to the first dam, and a region corresponding to the third dam, and the first inorganic encapsulation layer 2071 is positioned on the second dam layer 204 in a region corresponding to the second dam, that is, the first inorganic encapsulation layer 2071 is positioned on the barrier sub-dam 2041 of the second dam layer 204.

In step S802, an inkjet printing layer is formed on a side of the first inorganic encapsulation layer away from the substrate.

The ink jet printing layer is located in a region corresponding to the third bank and a region corresponding to the light emitting device.

Referring to fig. 21, an inkjet printing layer 2073 is formed in a region corresponding to the third bank and a region corresponding to the light emitting device.

In step S803, a second inorganic encapsulation layer is formed on the side of the inkjet printed layer away from the substrate.

The second inorganic encapsulation layer is positioned on the first inorganic encapsulation layer in a region corresponding to the first dam and a region corresponding to the second dam, and the second inorganic encapsulation layer is positioned on the ink jet printing layer in a region corresponding to the third dam and a region corresponding to the light emitting device.

Referring to fig. 22, a second inorganic encapsulating layer 2072 is formed on a side of the inkjet printing layer 2073 away from the substrate 201.

Fig. 23 is a schematic structural diagram of a flexible OLED panel provided in an embodiment of the present disclosure in a manufacturing process. Referring to fig. 23, the first and second

inorganic encapsulating layers

2071 and 2072 are patterned, and the first and second

inorganic encapsulating layers

2071 and 2072 are etched away in a region corresponding to the first dam 23 and a region corresponding to the crack isolation dam 26.

Fig. 24 is a schematic structural diagram of a mask type phototherapy beauty instrument provided by an embodiment of the present disclosure in a manufacturing process. Referring to fig. 24, the optical adhesive layer 70 and the protective film 80 are attached to the flexible OLED panel 20, then the protective film 80 is placed on the carrying surface to prevent the optical adhesive layer 70 from being contaminated, and through holes are cut in the flexible OLED panel 20, the optical adhesive layer 70 and the protective film 80 by laser cutting.

And then the manufactured flexible cover plate 30 with the through holes, the ink layer 50, the isolation layer 60 and the flexible support plate 10 are attached in sequence.

In other implementations, the protection film 80 may be attached to the flexible OLED panel 20 after the through holes are formed.

Fig. 25 is a top view of a display panel provided in an embodiment of the disclosure. Referring to fig. 25, the display panel has a plurality of through holes 40. Fig. 26 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure. Referring to fig. 25 and 26, the display panel includes a plurality of light emitting devices 21 and at least one bank group 22, the plurality of light emitting devices 21 being distributed between a plurality of through holes 40, each bank group 22 of the at least one bank group 22 surrounding a corresponding one 40 of the plurality of through holes 40, at least one 40 of the plurality of through holes 40 being surrounded by a corresponding bank group 22 of the at least one bank group 22.

The through holes 40 in fig. 25 are exemplified by the air holes in the foregoing, but the through holes 40 of the display panel may also include through holes such as a light-transmitting hole, a glasses-avoiding hole, and a mouth-nose-avoiding hole. In fig. 25, the through-holes 40 are circular holes, and in other implementations, the through-holes 40 may be elliptical holes, square holes, or other shaped through-holes. In fig. 25, the number of the through holes 40 of the display panel is only an illustration, in other implementations, the display panel may include other numbers of through holes 40, and the arrangement of the through holes 40 is not limited.

When the through hole 40 is arranged in the display panel, the dam bank 22 is arranged in the display panel to surround the through hole 40, so that the external water and oxygen are prevented from entering the display panel from the through hole 40 to corrode the light emitting device 21 in the display panel.

Referring again to fig. 6, each bank group 22 of the at least one bank group 22 includes at least one turn of the first bank 23 and a turn of the second bank 24, the at least one turn of the first bank 23 surrounds a corresponding one 40 of the plurality of through holes 40, and the turn of the second bank 24 surrounds the at least one turn of the first bank 23. The width of the top surface of the first bank 23 is larger than the width of the bottom surface of the first bank 23, the bottom surface of the first bank 23 is a surface close to the substrate 201, the top surface of the first bank 23 is opposite to the bottom surface of the first bank 23, the width of the top surface and the width of the bottom surface of the first bank 23 are both the size in the radial direction of the first bank 23, and the height of the second bank 24 is larger than the height of the first bank 23.

In the disclosed embodiment, both the first bank 23 and the second bank 24 in the bank 22 may function as a barrier to water and oxygen. The width of the top surface of the first bank 23 is greater than the width of the bottom surface of the first bank 23, so that an annular groove with a small opening is formed between the adjacent first banks 23, water and oxygen are not easy to come out of the annular groove, and the effect of blocking water and oxygen by the bank group 22 is further increased. The height of the second dam 24 is greater than that of the first dam 23, so that the second dam 24 can block the inkjet liquid in the area where the first dam 23 is located and the area where the light emitting device 21 is located, and the inkjet liquid is prevented from overflowing to affect the packaging effect.

Illustratively, the structure of the first bank 23 is the same as that of the partition bank 2021 located at the region where the first bank 23 is located among the plurality of turns of partition banks 2021 in fig. 4, and the structure of the second bank 24 is the same as that of the whole of the partition bank 2021 located at the region where the second bank 24 is located and the blocking sub-bank 2041 among the plurality of turns of partition banks 2021 in fig. 4.

Referring again to fig. 26, the first bank 23 includes a ring of first barrier rings 231 and a ring of second barrier rings 232 stacked on the substrate 201 in sequence, and an orthogonal projection of the first barrier rings 231 on a first plane is located inside an orthogonal projection of the second barrier rings 232 carried on the first plane, which is a plane of a surface of the display panel when it is unfolded.

In the embodiment of the present disclosure, an orthographic projection of the first barrier ring 231 on the first plane is a first annular structure, and an orthographic projection of the second barrier ring 232 on the first plane is a second annular structure. The orthographic projection of the first stop ring 231 on the first plane is positioned inside the orthographic projection of the carried second stop ring 232 on the first plane, which can be expressed that the inner edge and the outer edge of the first annular structure are positioned in the second annular structure and are not coincident; it can also be expressed that the inner edge of the first annular structure coincides with the inner edge of the second annular structure, the outer edge of the first annular structure being located within and not coinciding with the outer edge of the second annular structure; it can also be stated that the outer edge of the first annular structure coincides with the outer edge of the second annular structure, and the inner edge of the first annular structure is located within and does not coincide with the inner edge of the second annular structure. So that the width of the top surface of the first bank 23 is greater than the width of the bottom surface of the first bank 23.

Alternatively, the material of the first barrier ring 231 includes at least one of a metal, an organic material, and an inorganic material, and the material of the second barrier ring 232 includes at least one of an inorganic material and an organic material. The second bank 24 includes a ring of third barrier rings 241, a ring of fourth barrier rings 242, and a ring of fifth barrier rings 243 sequentially stacked on the substrate 201, a material of the third barrier rings 241 is the same as a material of the first barrier rings 231, a material of the fourth barrier rings 242 is the same as a material of the second barrier rings 232, and a material of the fifth barrier rings 243 is an organic material.

In the embodiment of the present disclosure, the first bank 23 is arranged as one ring of the first barrier ring 231 and one ring of the second barrier ring 232 on the first barrier ring 231, for ease of fabrication. When the first barrier ring 231 is of a metal structure, the first barrier ring 231 may be fabricated on the same layer as the routing layer 210, when the first barrier ring 231 is of an inorganic structure, the first barrier ring 231 may be fabricated on the same layer as the planarization layer 209, and when the first barrier ring 231 is of an organic structure, the layer where the first barrier ring 231 is located may be a single layer and is not fabricated together with other layers, for example, the first barrier ring 231 is made of polyimide. The second blocking ring 232 is an inorganic structure, and the second blocking ring 232 can be fabricated on the same layer as the insulating layer 203. The material of the third barrier ring 241 is the same as that of the first barrier ring 231, and the third barrier ring 241 may be fabricated in the same layer as the first barrier ring 231. The material of the fourth blocker ring 242 is the same as the material of the second blocker ring 232, and the fourth blocker ring 242 may be fabricated in the same layer as the second blocker ring 232. The material of the fifth barrier ring 243 is an organic material, and the fifth barrier ring 243 may be fabricated on the same layer as the pixel defining layer 208.

Illustratively, the first bank 23 may further include a sixth blocking ring 233 and a seventh blocking ring 234 which are sequentially stacked on the second blocking ring 232. The sixth barrier ring 233 is fabricated in the same layer as the light emitting layer 205, and the seventh barrier ring 234 is fabricated in the same layer as the cathode layer 206.

In the embodiment of the present disclosure, the second barrier ring 232 and the insulating layer are on the same layer, and the material of the second barrier ring 232 is an inorganic material. In other implementations, the second blocking ring 232 may be the same layer as the light emitting layer, and in this case, the material of the second blocking ring 232 is an organic material. Or the second barrier ring 232 includes both the ring structure in the insulating layer and the ring structure of the light emitting layer, and the ring structure in the insulating layer and the ring structure of the light emitting layer are sequentially stacked on the first barrier ring 231 in a direction away from the first plane, in this case, the material of the second barrier ring 232 includes both an organic material and an inorganic material.

Illustratively, the structure of the first blocker ring 231 and the structure of the third blocker ring 241 are the same as the structure of the isolation sub-dam 2022 in fig. 4, and the structure of the second blocker ring 232 and the fourth blocker ring 242 are the same as the structure of the isolation ring 2031 in fig. 4. The structure of the fifth barrier ring 243 is the same as that of the barrier sub-dam 2041 in fig. 4.

Referring again to fig. 26, each of the at least one bank 22 further includes at least one ring of third banks 25, the at least one ring of third banks 25 surrounding the second banks 24. The structure of the third bank 25 is the same as that of the first bank 23.

The third dike 25 is arranged in the dike group 22, and the third dike 25 can also play a role of blocking water and oxygen, so that the effect of blocking water and oxygen by the dike group 22 is further improved. The structure of the third bank 25 is the same as that of the first bank 23, and the third bank 25 and the first bank 23 can be fabricated in the same layer, which is more convenient.

Referring again to fig. 26, the display panel further includes at least one crack isolation dam 26, and any one of the at least one crack isolation dam 26 surrounds a corresponding one of the plurality of through holes 40 and is located in the dam group 22 corresponding to the surrounded through hole 40.

In the embodiment of the present disclosure, the display panel includes a plurality of through holes 40, and cracks are easily generated at the through holes 40, and when the cracks extend to the region where the light emitting device 21 is located, the stability of the light emitting device 21 is affected. The crack isolation dike 26 isolates the through hole 40 from the dike group 22, so that the crack is prevented from extending to the dike group 22 to influence the stability of the dike group 22, the water and oxygen blocking effect cannot be achieved, and the crack is prevented from extending to the light emitting device 21 to influence the stability of the light emitting device 21.

Referring again to fig. 26, the crack isolation dam 26 includes a plurality of spaced and concentric rings of inorganic rings 261 and a ring of organic rings 262. The organic ring 262 covers the plurality of turns of the inorganic ring 261 and is filled between any adjacent two turns of the inorganic ring 261 in the plurality of turns of the inorganic ring 261.

The inorganic material is likely to crack compared to the organic material, the insulating layer 203 is generally an inorganic layer, and the organic ring 262 is made of an organic material, so that cracks are not likely to occur. The portion of the insulating layer 203 surrounding the through hole 40 is arranged into a plurality of turns of the inorganic ring 261, the organic ring 262 covers the plurality of turns of the inorganic ring 261 and is filled between any two adjacent turns of the inorganic ring 261 in the plurality of turns of the inorganic ring 261, the inorganic ring 261 is isolated by the organic ring 262, when a crack is generated in the inorganic ring 261 and extends into the display panel, the crack contacts the organic ring 262, the organic ring 262 is not easy to generate a crack, and thus the crack is prevented from extending.

Illustratively, the organic ring 262 may be fabricated in the same layer as the pixel defining layer 208.

Illustratively, the structure of the inorganic ring 261 is the same as that of the portion between the first annular grooves 2032 in fig. 4, and the structure of the organic ring 262 is the same as that of the crack isolation ring 2111 in fig. 4.

In the embodiment of the present disclosure, the display panel further includes a barrier layer 214, a routing layer 210, a planarization layer 209, an anode layer 212, a pixel defining layer 208, a light emitting layer 205, a cathode layer 206, and an encapsulation layer 207, which are sequentially stacked on the substrate 201. The structures of these film layers and the structure of the light emitting device 21 can be referred to the description of fig. 3 to 8 described above.

The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.

Claims

1. The mask type phototherapy beauty instrument is characterized by comprising a transparent flexible supporting plate (10), a flexible OLED panel (20) and a flexible cover plate (30) which are sequentially stacked;

the flexible support plate (10) is used for fitting the face of a user, and the flexible support plate (10) is located on one side where the light-emitting surface of the flexible OLED panel (20) is located;

the mask phototherapy beauty instrument is provided with a plurality of through holes (40), the flexible OLED panel (20) comprises a plurality of light emitting devices (21) and a plurality of dam groups (22), the plurality of light emitting devices (21) are distributed among the plurality of dam groups (22), and the dam groups (22) surround the corresponding through hole (40) in the plurality of through holes (40).

2. The mask-type phototherapy beauty treatment apparatus according to claim 1, wherein each dam group (22) of the plurality of dam groups (22) comprises a first dam (23) and a second dam (24), the first dam (23) surrounding one of the plurality of through holes (40), the second dam (24) surrounding the first dam (23);

the first and second dikes (23, 24) each comprise a first dike layer (202) on a substrate (201), the second dike (24) further comprising a second dike layer (204) on the first dike layer (202).

3. The mask phototherapy beauty treatment apparatus according to claim 2, wherein the first dyke layer (202) comprises a plurality of spaced and concentric circles of isolation dykes (2021), the first dyke (23) and the second dyke (24) each comprising at least one circle of isolation dykes (2021) of the plurality of circles of isolation dykes (2021);

the width of the top surface of the isolation bank (2021) is greater than the width of the bottom surface of the isolation bank (2021), the bottom surface of the isolation bank (2021) is the surface where the isolation bank (2021) and the substrate (201) are in contact, and the top surface of the isolation bank (2021) is opposite to the bottom surface of the isolation bank (2021).

4. The mask phototherapy beauty treatment apparatus according to claim 3, wherein the isolation dike (2021) comprises an isolation sub dike (2022) and an isolation ring (2031) on the isolation sub dike (2022), a ring of isolation rings (2031) is stacked on a ring of isolation sub dikes (2022), and an orthographic projection of the isolation sub dike (2022) is located inside an orthographic projection of the carried isolation ring (2031) in a first plane, which is a plane of a surface of the flexible support plate (10) when it is not folded.

5. The mask phototherapeutic cosmetic apparatus of any one of claims 2 to 4, wherein each bank group (22) of the plurality of bank groups (22) further comprises a third bank (25), the third bank (25) surrounding the second bank (24);

the third bank (25) comprises the first bank layer (202) on a substrate (201).

6. The mask phototherapeutic cosmetic apparatus of any one of claims 2 to 4, wherein the flexible OLED panel (20) further comprises an encapsulation layer (207) laminated over the bank groups (22) and the light emitting devices (21);

the encapsulation layer (207) includes a first inorganic encapsulation layer (2071) and a second inorganic encapsulation layer (2072) which are sequentially stacked in an area where the second dam (24) is located and an area between the second dam (24) and the corresponding through hole (40);

in a region between the respective second dam banks (24), the encapsulation layer (207) includes a first inorganic encapsulation layer (2071), an inkjet printing layer (2073) and a second inorganic encapsulation layer (2072) which are sequentially stacked.

7. The mask-type phototherapy beauty treatment instrument according to any one of claims 2 to 4, wherein the flexible OLED panel (20) further comprises a substrate (201), a routing layer (210), a planarization layer (209), an anode layer (212), a pixel defining layer (208), a light emitting layer (205) and a cathode layer (206) which are sequentially stacked on the flexible support plate (10) in a direction away from the flexible support plate (10), the cathode layer (206) having a reflective property;

alternatively, the flexible OLED panel (20) further comprises a substrate (201), a routing layer (210), a planarization layer (209), a reflective layer (213), an anode layer (212), a pixel defining layer (208), a light emitting layer (205) and a cathode layer (206) sequentially stacked on the flexible cover plate (30) in a direction away from the flexible cover plate (30).

8. The mask phototherapy beauty instrument according to claim 7, wherein the routing layer (210) comprises a plurality of routing lines (2101), the plurality of routing lines (2101) are electrically connected to the anode layer (212), and the pixels of the anode connected to the same routing line (2101) belong to the same color.

9. The mask-type phototherapy cosmetic device according to claim 7, wherein the first dam layer (202) is in the same layer as the planarization layer (209);

or, the first dam layer (202) is the same layer as the routing layer (210);

alternatively, the first bank layer (202) is a polyimide layer.

10. The mask phototherapeutic cosmetic apparatus of any one of claims 1 to 4, wherein the flexible OLED panel (20) further comprises a plurality of circles of crack isolation dikes (26), any one of the plurality of circles of crack isolation dikes (26) surrounding a corresponding one of the plurality of through holes (40), one of the bank groups (22) surrounding one of the plurality of circles of crack isolation dikes (26) (22);

the multi-turn crack isolation dike (26) comprises an insulating layer (203) and a crack isolation layer (211) which are sequentially laminated on a substrate (201);

the insulating layer (203) is provided with a plurality of circles of first annular grooves (2032) which are spaced and concentric around the through hole (40), the crack isolation layer (211) comprises a crack isolation ring (2111) which surrounds the through hole (40), the bottom of the crack isolation ring (2111) is provided with a plurality of circles of annular protrusions (2112) which correspond to the plurality of circles of first annular grooves (2032) in a one-to-one mode, and the plurality of circles of annular protrusions (2112) are located in the plurality of circles of first annular grooves (2032).

11. The mask phototherapy cosmetic device according to any one of claims 1 to 4, wherein the plurality of through holes (40) comprise at least one of:

a plurality of air vents (401), two eye relief holes (402) and one oronasal relief hole (403);

mask formula phototherapy beauty instrument still includes printing ink layer (50), printing ink layer (50) are located between flexible OLED panel (20) and flexible backup pad (10), printing ink layer (50) include with two eyes dodge two first printing ink rings (501) of hole (402) one-to-one, on first plane, the inner border of the orthographic projection of two first printing ink rings (501) respectively with the edge coincidence of hole (402) is dodged to two eyes, first plane does the plane at surface place when flexible backup pad (10) is not folded.

12. The mask-type phototherapy cosmetic device according to claim 11, wherein the ink layer (50) further comprises a second ink ring and a third ink ring;

the second ring of ink is located at the edge of the one oronasal relief hole (403) and the third ring of ink is located at the edge of the flexible OLED panel (20).

13. The mask phototherapy cosmetic device according to any one of claims 1 to 4, further comprising:

an isolation layer (60) between the flexible OLED panel (20) and the flexible cover sheet (30).

14. A method for manufacturing a mask type phototherapy beauty instrument, which is characterized in that the method comprises the following steps:

providing a transparent flexible support plate, wherein the flexible support plate is used for fitting the face of a user;

forming a flexible OLED panel on the flexible support plate, wherein the flexible support plate is positioned on one side of the light emergent surface of the flexible OLED panel;

forming a flexible cover sheet over the flexible OLED panel.

15. A display panel characterized in that the display panel has a plurality of through holes (40), the display panel comprises a plurality of light emitting devices (21) and at least one bank group (22), the plurality of light emitting devices (21) are distributed between the plurality of through holes (40), each bank group (22) of the at least one bank group (22) surrounds a corresponding one of the plurality of through holes (40), at least one through hole (40) of the plurality of through holes (40) is surrounded by a corresponding bank group (22) of the at least one bank group (22).

16. The display panel according to claim 15, wherein each bank group (22) of the at least one bank group (22) comprises at least one ring of first banks (23) and one ring of second banks (24), the at least one ring of first banks (23) surrounding a corresponding one of the plurality of through holes (40), the one ring of second banks (24) surrounding the at least one ring of first banks (23);

the width of the top surface of the first dam (23) is greater than the width of the bottom surface of the first dam (23), the bottom surface of the first dam (23) is a surface close to the substrate (201), the width of the top surface and the width of the bottom surface of the first dam (23) are both the radial dimension of the first dam (23), and the height of the second dam (24) is greater than the height of the first dam (23).

17. The display panel according to claim 16, wherein the first bank (23) comprises a ring of first barrier rings (231) and a ring of second barrier rings (232) sequentially stacked on the substrate (201), an orthogonal projection of the first barrier rings (231) in a first plane is located inside an orthogonal projection of the carried second barrier rings (232) in the first plane, the first plane is a plane in which a surface of the display panel when unfolded is located, a material of the first barrier rings (231) comprises at least one of a metal, an organic material, and an inorganic material, and a material of the second barrier rings (232) comprises at least one of an inorganic material and an organic material;

the second dam (24) includes a ring of third barrier rings (241), a ring of fourth barrier rings (242), and a ring of fifth barrier rings (243) sequentially stacked on a substrate (201), a material of the third barrier rings (241) is the same as a material of the first barrier rings (231), a material of the fourth barrier rings (242) is the same as a material of the second barrier rings (232), and a material of the fifth barrier rings (243) is an organic material.

18. The display panel of claim 17, wherein each bank group of the at least one bank group (22) further comprises at least one ring of third banks (25), the at least one ring of third banks (25) surrounding the second banks (24);

the structure of the third dike (25) is the same as that of the first dike (23).

19. The display panel according to any one of claims 15 to 18, further comprising at least one crack isolation dam (26), wherein any one of the at least one crack isolation dam (26) surrounds a corresponding one of the plurality of through holes (40) and is located in a bank (22) corresponding to the surrounded through hole (40).

20. The display panel of claim 19 wherein the crack isolation dam (26) comprises a plurality of spaced and concentric rings of inorganic rings (261) and a ring of organic rings (262);

the organic ring (262) covers the plurality of turns of the inorganic ring (261) and is filled between any adjacent two turns of the inorganic ring (261) in the plurality of turns of the inorganic ring (261).