Bendable display assembly and aerosol generating device

Abstract

The utility model discloses a bendable display assembly and an aerosol generating device.The bendable display assembly comprises a flexible display layer, a flexible printed circuit board with a circuit track and a plurality of light-emitting elements, and the flexible printed circuit board is provided with a first surface in the thickness direction of the flexible printed circuit board; the plurality of light-emitting elements are distributed on the first surface of the flexible printed circuit board at intervals and are electrically connected with the circuit track; the flexible display layer is fixedly stacked on the first surface of the flexible printed circuit board and covers the light-emitting elements, the flexible display layer is provided with a plurality of light-transmitting areas, each light-transmitting area is arranged opposite to at least one light-emitting element, and the area, except the light-transmitting areas, of the flexible display layer is a shading area. According to the bendable display assembly disclosed by the invention, the display area of the aerosol generating device can be increased, so that the aerosol generating device can display more visual information for a user.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomization, and particularly relates to a bendable display component and an aerosol generating device. Background Art

[0002] An aerosol generating device is an electronic device that can atomize aerosol-forming substances such as e-liquid and medicine stored in itself into aerosol by means of electric heating. Currently, aerosol generating devices on the market generally include structures such as an atomizing core, a power supply component, and a receiving chamber. Among them, the receiving chamber generally houses aerosol-forming substances, and the aerosol-forming substances in the receiving chamber can be conducted to the atomizing core through capillary action and other means. During the process of a user using the aerosol generating device for suction, the power supply component provides electric energy for the atomizing core, so that the atomizing core can be energized to generate heat, and the heat generated by the energized heating of the atomizing core can atomize the aerosol-forming substances conducted to the atomizing core into aerosol that can be inhaled by the user.

[0003] With the continuous use of the aerosol generating device, the power of the power supply of the aerosol generating device and the amount of aerosol-forming substances will gradually decrease. In order to facilitate the user to know the remaining power of the aerosol generating device and the remaining amount of aerosol-forming substances at any time and intuitively, an external display screen that can display information such as the remaining power and the remaining amount of aerosol-forming substances is usually configured on the aerosol generating device. However, currently, aerosol generating devices with display screens generally have the following problems:

[0004] Since the display screen usually used is a display screen with a rigid glass substrate, the display screen can usually only be installed on one outer surface of the aerosol generating device (such as the front, back or side of the aerosol generating device). Moreover, in order to facilitate the user to carry and use, the volume of the aerosol generating device is generally made relatively small, which leads to the problem of a small display area of the aerosol generating device. With the continuous development of electronic atomization technology, more and more information needs to be displayed on the display screen. Therefore, how to increase the display area of the aerosol generating device so that the aerosol generating device can display more information is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Utility Model

[0005] The main purpose of the present application is to provide a bendable display component and an aerosol generating device, aiming to solve the technical problem of the small display area existing in the existing aerosol generating device with a display screen.

[0006] To achieve the above object, in a first aspect, the present application provides a bendable display component, and the bendable display component includes:

[0007] A flexible printed circuit board having circuit traces, and having a first surface in its own thickness direction;

[0008] A plurality of light-emitting elements, spaced apart and distributed on the first surface and electrically connected to the circuit traces; and

[0009] A flexible display layer, fixedly laminated on the first surface and covering each of the light-emitting elements. The flexible display layer has a plurality of light-transmitting regions, and each light-transmitting region is disposed opposite to at least one of the light-emitting elements. The region of the flexible display layer other than the light-transmitting regions is a light-shielding region.

[0010] In some embodiments, the bendable display assembly further includes a current driving element and a current input interface. The first surface has a first mounting region and a second mounting region that are connected to each other. The area of the first mounting region is larger than that of the second mounting region. The second mounting region is disposed at the edge of the flexible printed circuit board. A plurality of the light-emitting elements are fixed on the first mounting region. The current driving element and the current input interface are spaced apart and mounted on the second mounting region and are both electrically connected to the circuit traces.

[0011] In some embodiments, a notch is formed at the edge of the flexible printed circuit board, and the second mounting region is located within the notch. The region of the first surface other than the second mounting region is the first mounting region.

[0012] In some embodiments, a plurality of test points made of a metal material are also exposed on the second mounting region, and the plurality of test points are electrically connected to the circuit traces.

[0013] In some embodiments, the bendable display assembly further includes a metal sheet, and the metal sheet is fixed on a side of the flexible printed circuit board facing away from the second mounting region.

[0014] In some embodiments, the bendable display assembly further includes a flexible flat cable, and one end of the flexible flat cable is plugged into the current input interface.

[0015] In some embodiments, the bendable display assembly further includes a first adhesive layer. The flexible printed circuit board further has a second surface disposed opposite to the first surface, and the first adhesive layer is disposed on the second surface.

[0016] In some embodiments, the bendable display assembly further includes a flexible reflective layer, and the flexible reflective layer covers the first surface, and each of the light-emitting elements is exposed from the flexible reflective layer.

[0017] In some embodiments, the flexible display assembly further includes a flexible diffusion layer, which is attached to a surface of the flexible display layer facing the flexible printed circuit board, and the flexible diffusion layer is disposed to cover each of the light-transmitting regions.

[0018] In some embodiments, the flexible display assembly further includes a flexible light-shielding layer, on which a plurality of light-transmitting holes are formed. The flexible light-shielding layer is sandwiched between the flexible printed circuit board and the flexible display layer, and each of the light-transmitting holes is disposed opposite to at least one of the light-transmitting regions.

[0019] In some embodiments, the flexible light-shielding layer is made of a non-transparent silicone, rubber or silicone rubber material.

[0020] In some embodiments, a second adhesive layer is disposed on a surface of the flexible light-shielding layer facing the flexible printed circuit board.

[0021] In some embodiments, a third adhesive layer is disposed on a surface of the flexible display layer facing the flexible printed circuit board.

[0022] In some embodiments, the light-emitting element is an LED lamp bead.

[0023] In some embodiments, the light-emitting element is an LED lamp bead with a size specification of 0.5 - 1.5 mm in length × 0.2 - 0.8 mm in width × 0.1 - 0.8 mm in thickness.

[0024] In some embodiments, the light-emitting element is an LED lamp bead with a size specification of 1.0 mm in length × 0.5 mm in width × 0.4 mm in thickness.

[0025] In some embodiments, the flexible printed circuit board includes any one of a polyimide film and a polyester film.

[0026] To achieve the above object, in a second aspect, the present application further provides an aerosol generating device, which includes a housing, a power supply assembly installed in the housing, and the flexible display assembly described in any of the above embodiments. The flexible display assembly is fixed to an outer surface of the housing and is disposed around the housing along the circumferential direction of the housing. Among them, the flexible printed circuit board is located between the flexible display layer and the housing and is electrically connected to the power supply assembly.

[0027] Compared with the prior art, the beneficial effects of the present application are:

[0028] In the technical solution of the present application, a plurality of light-emitting elements are distributed on the first surface of the flexible printed circuit board. The flexible display layer with a plurality of light-transmitting regions is fixed on the first surface of the flexible printed circuit board and covers each light-emitting element, so that the plurality of light-emitting elements can be encapsulated between the flexible display layer and the flexible printed circuit board. Among them, the flexible printed circuit board can serve as a mounting carrier for the plurality of light-emitting elements, and the circuit traces on the flexible printed circuit board can serve as a medium for electrically connecting the plurality of light-emitting elements to an external power source. When the plurality of light-emitting elements are connected to the external power source through the circuit traces of the flexible printed circuit board, the plurality of light-emitting elements are powered on and emit light, and the emitted light can be displayed in the light-transmitting regions of the flexible display layer. That is, the light-transmitting regions of the flexible display layer can serve as the light display regions of the display assembly, thereby realizing the display function of the display assembly. Since both the flexible display layer and the flexible printed circuit board are flexible structures, the display assembly formed by laminating the flexible display layer and the flexible printed circuit board is also a flexible structure, so that it can be bent. Thus, when the bendable display assembly provided in the present application is applied to the aerosol generating device, based on the bendable characteristic of the display assembly, the display assembly can cover multiple outer surfaces of the aerosol generating device by winding, so that the light display regions of the display assembly can be distributed on multiple outer surfaces of the aerosol generating device, thereby improving the display area of the aerosol generating device and enabling the aerosol generating device to display more information to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0030] Figure 1 Schematic perspective view of a bendable display assembly in an embodiment of the present application;

[0031] Figure 2 is Figure 1 Expanded plan view;

[0032] Figure 3 is Figure 2 Cross-sectional view taken along the A-A direction;

[0033] Figure 4 Partial cross-sectional view of a bendable display assembly in an embodiment of the present application;

[0034] Figure 5 Front view of a flexible printed circuit board in an embodiment of the present application;

[0035] Figure 6 Schematic diagram of the back side of a flexible printed circuit board in an embodiment of the present application;

[0036] Figure 7 Schematic diagram of the front side of a flexible printed circuit board in another embodiment of the present application;

[0037] Figure 8 Schematic plan view of a flexible display layer in an embodiment of the present application;

[0038] Figure 9 Schematic plan view of the combination of a flexible display layer and a flexible diffusion layer in an embodiment of the present application;

[0039] Figure 10 Schematic plan view of a flexible light-shielding layer in an embodiment of the present application;

[0040] Figure 11 Schematic structural diagram of an aerosol generating device in an embodiment of the present application.

[0041] Explanation of the reference numerals in the drawings:

[0042] 1 - Flexible printed circuit board, 11 - First surface, 111 - First mounting area, 112 - Second mounting area, 12 - Second surface, 13 - Notch, 14 - Circuit trace, 15 - First adhesive layer;

[0043] 2 - Light-emitting element;

[0044] 3 - Flexible display layer, 31 - Light-transmitting area, 32 - Light-shielding area, 33 - Third adhesive layer;

[0045] 41 - Current driving element, 42 - Current input interface, 43 - Test point;

[0046] 51 - Metal sheet, 511 - Positioning hole, 52 - Flexible flat cable;

[0047] 6 - Flexible reflective layer;

[0048] 7 - Flexible diffusion layer, 71 - Fourth adhesive layer;

[0049] 8 - Flexible light-shielding layer, 81 - Light-transmitting hole, 82 - Second adhesive layer;

[0050] 9 - Outer housing. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0052] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0053] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or", or "and / or" appear throughout the text, their meanings include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0054] Please refer to Figures 1-3 and Figures 5-6 , an embodiment of the present application provides a bendable display component. The bendable display component includes a flexible printed circuit board 1, a flexible display layer 3, and a plurality of light-emitting elements 2. The flexible printed circuit board 1 has circuit traces 14 and the flexible printed circuit board 1 has a first surface 11 in its own thickness direction. The plurality of light-emitting elements 2 are spaced apart and distributed on the first surface 11 of the flexible printed circuit board 1 and are electrically connected to the circuit traces 14. The flexible display layer 3 is fixedly laminated on the first surface 11 of the flexible printed circuit board 1 and covers each light-emitting element 2. The flexible display layer 3 has a plurality of light-transmitting regions 31, and each light-transmitting region 31 is disposed opposite to at least one light-emitting element 2. The region of the flexible display layer 3 other than the light-transmitting regions 31 is a light-shielding region 32.

[0055] In this embodiment, those skilled in the art can understand that the flexible printed circuit board 1, also known as the FPC (Flexible Printed Circuit, FPC) board, is a flexible circuit board printed with circuit traces 14, which has the advantages of good flexibility, light weight, and thin thickness. In the specific manufacturing process, the required flexible printed circuit board 1 can be obtained by printing circuit traces 14 on a flexible film. Among them, the flexible film can be a polymer material with high performance (such as excellent heat resistance, chemical stability, and bendability), such as polyimide film, polyester film, etc.

[0056] In this embodiment, during specific implementation, the light-emitting element 2 can be components that can emit light when powered on, such as LED lamp beads. Among them, in some optional implementation manners, the light-emitting element 2 can use LED lamp beads with a size specification of length 0.5 - 1.5 mm × width 0.2 - 0.8 mm × thickness 0.1 - 0.8 mm. Preferably, the light-emitting element 2 can specifically be LED lamp beads of model 0402. The size specification of this type of LED lamp bead is length 1.0 mm × width 0.5 mm × thickness 0.4 mm. After multiple repeated tests, when the display component provided in this embodiment uses this type of LED lamp bead as the light-emitting element 2, compared with other size specifications of LED lamp beads, the display component can obtain better display effects and higher quality reliability. The light-emitting element 2 can be fixed on the first surface 11 of the flexible printed circuit board 1 and form an electrical connection with the circuit traces 14 of the flexible printed circuit board 1 by means of welding, bonding (such as bonding through insulating glue or conductive glue), etc.

[0057] In this embodiment, during specific implementation, the material of the flexible display layer 3 can be flexible materials such as polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), liquid crystal polymer (LCP), polyvinyl alcohol (PVA), polydimethylsiloxane (PDMS), etc., as long as it can meet the usage requirements. This embodiment does not specifically limit the specific material of the flexible display layer 3. Among them, when the flexible display layer 3 is made of a transparent flexible material, the light-transmitting region 31 and the light-shielding region 32 can be formed on the flexible display layer 3 by means such as coating light-shielding ink. For example, when the flexible display layer 3 is a transparent polyimide film, the light-shielding ink can be coated on the surface of the polyimide film in a predetermined manner. The region of the polyimide film coated with the light-shielding ink can be regarded as the light-shielding region 32 of the flexible display layer 3, and the region of the polyimide film not coated with the light-shielding ink can be regarded as the light-transmitting region 31 of the flexible display layer 3. When the flexible display layer 3 is made of an opaque flexible material, the light-transmitting region 31 and the light-shielding region 32 can be formed on the flexible display layer 3 by means such as laser engraving. For example, when the flexible display layer 3 is an opaque PET film, the required light-transmitting region 31 (the light-transmitting region 31 is essentially a through-hole at this time) can be engraved on the surface of the PET film by laser engraving, and the region of the PET film not engraved forms the light-shielding region 32. It should be noted here that during specific implementation, the shape, size, and position distribution of each light-transmitting region 31 can be determined according to actual usage requirements, and this embodiment does not specifically limit this. Optionally, the shape of the light-transmitting region 31 can be in the shape of characters, numbers, letters, dots, lines, etc. When the light emitted by the light-emitting element 2 reaches the light-transmitting region 31, the light display information of the corresponding shape can be displayed. For example, when the light emitted by the light-emitting element 2 reaches the light-transmitting region 31 in the shape of a letter, the user can observe the glowing letter on the flexible display layer 3. In this way, various different-shaped light display information can be obtained by combining multiple light-transmitting regions 31 of different shapes. Thus, when the bendable display component provided in this embodiment is applied to an aerosol generating device, various information of the aerosol generating device (such as remaining power, working power, remaining amount of aerosol-forming substance, preset pattern, etc.) can be characterized by different-shaped light display information. In addition, the number of light-emitting elements 2 corresponding to each light-transmitting region 31 can also be determined according to actual usage requirements, and this embodiment does not specifically limit this either.

[0058] In this embodiment, it should also be noted that during specific implementation, the flexible display layer 3 can be fixedly laminated on the first surface 11 of the flexible printed circuit board 1 by means such as bonding. Optionally, as Figure 3As shown, a third adhesive layer 33 is provided on the surface of the flexible display layer 3 facing the flexible printed circuit board 1. Through this third adhesive layer 33, the flexible display layer 3 can be quickly and reliably adhered to the flexible printed circuit board 1 to form an integrated laminated structure. Specifically, in implementation, the third adhesive layer 33 can be double-sided tape, structural adhesive, optically transparent adhesive, pressure-sensitive adhesive, etc., as long as it can meet the usage requirements, and this embodiment does not make specific restrictions on this.

[0059] In the technical solution provided by the embodiment of the present application, a plurality of light-emitting elements 2 are distributed on the first surface 11 of the flexible printed circuit board 1. The flexible display layer 3 having a plurality of light-transmitting regions 31 is fixed on the first surface 11 of the flexible printed circuit board 1 and covers each light-emitting element 2, so that the plurality of light-emitting elements 2 can be encapsulated between the flexible display layer 3 and the flexible printed circuit board 1. Among them, the flexible printed circuit board 1 can be used as a mounting carrier for the plurality of light-emitting elements 2, and the circuit traces 14 on the flexible printed circuit board 1 can be used as a medium for electrically connecting the plurality of light-emitting elements 2 to an external power source. When the plurality of light-emitting elements 2 are connected to the external power source (the external power source can be a power component of an aerosol generating device) through the circuit traces 14 of the flexible printed circuit board 1, the plurality of light-emitting elements 2 are powered on and emit light, and the emitted light can be displayed in the light-transmitting regions 31 of the flexible display layer 3. That is, the light-transmitting regions 31 of the flexible display layer 3 can be used as the light display regions of the display component, thereby realizing the display function of the display component. Since both the flexible display layer 3 and the flexible printed circuit board 1 are flexible structures, the display component formed by laminating the flexible display layer 3 and the flexible printed circuit board 1 is also a flexible structure, so that it can be bent. Thus, when the bendable display component provided by the present application is applied to an aerosol generating device, based on the bendable characteristic of the display component, the display component can be wound to cover multiple outer surfaces of the aerosol generating device at the same time, so that the light display regions of the display component can be distributed on multiple outer surfaces of the aerosol generating device, thereby improving the display area of the aerosol generating device and enabling the aerosol generating device to display more information for users.

[0060] Please refer to Figure 4 , in some alternative embodiments of the present application, the bendable display component further includes a first adhesive layer 15. The flexible printed circuit board 1 further has a second surface 12 disposed opposite to the first surface 11, and the first adhesive layer 15 is disposed on the second surface 12. Thus, in some usage scenarios where the bendable display component of this embodiment is applied to an aerosol generating device, the entire display component can be quickly attached to the outer surface of the aerosol generating device through the first adhesive layer 15, which is beneficial to improving the installation convenience of the display component. Specifically, in implementation, the first adhesive layer 15 can be a glue such as double-sided tape or structural adhesive, as long as it can meet the usage requirements, and this embodiment does not make specific restrictions on this.

[0061] Please refer to Figure 2 and Figure 5 In some alternative embodiments of the present application, the bendable display component further includes a current driving element 41 and a current input interface 42. The first surface 11 has a first mounting area 111 and a second mounting area 112 that are connected to each other. The area of the first mounting area 111 is larger than that of the second mounting area 112. The second mounting area 112 is disposed at the edge of the flexible printed circuit board 1 (for example, assuming that the flexible printed circuit board 1 is a strip-shaped sheet with a certain length and width, the second mounting area 112 can be disposed at the length edge or the width edge of the flexible printed circuit board 1). A plurality of light-emitting elements 2 are fixed on the first mounting area 111, and the current driving element 41 and the current input interface 42 are spaced apart and mounted on the second mounting area 112 and are both electrically connected to the circuit trace 14.

[0062] In this embodiment, by providing the current input interface 42 electrically connected to the circuit trace 14, in some usage scenarios where the bendable display component of this embodiment is applied to an aerosol generating device, it is convenient to electrically connect each light-emitting element 2 in the display component to the power supply component of the aerosol generating device. For example, in a specific application, only one end of a wire needs to be connected to the current input interface 42, and the other end of the wire is connected to the power supply component of the aerosol generating device, so that the electrical connection between each light-emitting element 2 and the power supply component of the aerosol generating device can be quickly realized, and the operation is very convenient. Among them, the structural form of the current input interface 42 can be a general connector or other types of communication interfaces, as long as it can meet the usage requirements, and this embodiment does not make specific limitations on this.

[0063] In this embodiment, by providing a driving element electrically connected to the circuit trace 14, in some usage scenarios where the bendable display component of this embodiment is applied to an aerosol generating device, after the power supply component of the aerosol generating device is connected through the current input interface 42, it is possible to facilitate the power supply component to drive each light-emitting element 2 to emit light in a preset manner, so as to display the required information on the flexible display layer 3. It should be noted here that in specific implementation, the driving element can adopt a general driving chip in the art, and since its specific structure and usage principle are already well-known to those skilled in the art, they will not be elaborated here.

[0064] Please refer to Figures 1-2 、 Figures 5-6 and Figure 11, in some alternative embodiments of the present application, a notch 13 is provided at the edge of the flexible printed circuit board 1, the second mounting area 112 is located within the notch 13, and the area of the first surface 11 of the flexible printed circuit board 1 other than the second mounting area 112 is the first mounting area 111. With this arrangement, compared with the arrangement in which the second mounting area 112 of the flexible printed circuit board 1 protrudes from the edge of the flexible printed circuit board 1 (as shown in Figure 7 ), in some usage scenarios where the bendable display component of this embodiment is applied to an aerosol generating device, it is beneficial to reduce the risk of interference between the first mounting area 111 and the second mounting area 112 during the process of circumferentially surrounding and mounting the display component on the outer surface of the aerosol generating device. Thus, it is possible to facilitate increasing the display area of the display component in the circumferential direction of the aerosol generating device. For example, assuming that the display component is a flexible strip with a certain length and width, if the second mounting area 112 of the flexible printed circuit board 1 protrudes from one of the width edges of the flexible printed circuit board 1 (as shown in Figure 7 ), then during the process of circumferentially surrounding and mounting the strip-shaped display component on the outer surface of the aerosol generating device, since the second mounting area 112 of the flexible printed circuit board 1 is likely to overlap with the other width edge of the flexible printed circuit board 1 and interfere with the end of the first mounting area 111 far from the second mounting area 112, it is difficult for the display component to form a complete closed-loop structure, which is not conducive to maximizing the display area of the aerosol generating device in its circumferential direction. In the technical solution provided in this embodiment, since an avoidance design is made for the second mounting area 112 of the flexible printed circuit board 1, that is, the second mounting area 112 of the flexible printed circuit board 1 is located within the notch 13 provided at the edge of the flexible printed circuit board 1. In this way, during the process of circumferentially surrounding and mounting the display component on the outer surface of the aerosol generating device, the situation where the end of the first mounting area 111 far from the second mounting area 112 interferes with the second mounting area 112 can be effectively avoided, so that the display component can be easily formed into a complete closed-loop structure, which is beneficial to maximizing the display area of the aerosol generating device in its circumferential direction.

[0065] In this embodiment, it should be noted that in some specific application scenarios, when the flexible printed circuit board 1 is a strip with a certain length and width, a notch 13 for accommodating the second mounting area 112 can be provided on the length edge of the flexible printed circuit board 1 (as shown in Figures 5-6 ), or a notch 13 for accommodating the second mounting area 112 can also be provided on the width edge of the flexible printed circuit board 1. This embodiment does not make specific limitations on this.

[0066] Please refer toFigure 5 , in some alternative embodiments of the present application, a plurality of test points 43 made of a metal material are also exposed and provided on the second mounting area 112 of the flexible printed circuit board 1, and the plurality of test points 43 are electrically connected to the circuit traces 14 of the flexible printed circuit board 1. In this way, by providing a plurality of test points 43 made of a metal material, it is convenient for testers to perform corresponding functional tests or fault tests on the display component.

[0067] Please continue to refer to Figure 5 , in some alternative embodiments of the present application, the bendable display component further includes a flexible flat cable 52, and one end of the flexible flat cable 52 is plugged into the current input interface 42. With such a setting, in some usage scenarios where the bendable display component of this embodiment is applied to an aerosol generating device, it is convenient for installers to quickly electrically connect the display component to the power supply component of the aerosol generating device. During specific operations, it is only necessary to plug the end of the flexible flat cable 52 away from the current input interface 42 into the communication interface of the power supply component, which is very convenient.

[0068] Please refer to Figures 5-6 , in some alternative embodiments of the present application, the bendable display component further includes a metal sheet 51, and the metal sheet 51 is fixed to the side of the flexible membrane facing away from the second mounting area 112. In this embodiment, the metal sheet 51 can reinforce (i.e., supplement the strength) the part of the flexible printed circuit board 1 that includes the second mounting area 112, so that in some usage scenarios where the bendable display component of this embodiment is installed on the outer surface of the aerosol generating device, it is convenient to position the part of the flexible printed circuit board 1 where the driving element and the current input interface 42 are installed. Among them, in order to more conveniently position the part of the flexible printed circuit board 1 where the driving element and the current input interface 42 are installed, at least one positioning hole 511 is also formed on the surface of the metal sheet 51.

[0069] Please refer to Figure 4, in some alternative embodiments of the present application, the flexible display component further includes a flexible reflective layer 6, which covers the first surface 11 of the flexible printed circuit board 1, and each light-emitting element 2 is disposed to be exposed from the flexible reflective layer 6. In this embodiment, the flexible reflective layer 6 can improve the lighting display effect of the display component on the premise of ensuring that the display component can be bent. Specifically, a part of the light emitted by the light-emitting element 2 will be reflected after irradiating the light-transmitting area 31 of the flexible display layer 3, and the presence of the flexible reflective layer 6 can, to a certain extent, reflect this part of the reflected light back to the light-transmitting area 31 of the flexible display layer 3 again, thereby improving the utilization rate of light and enabling the display component to obtain a better lighting display effect. Among them, in specific implementation, the flexible reflective layer 6 can be a flexible reflective film (such as a transparent polyimide film), or a paint layer (optionally, a white paint layer can be used as the flexible reflective layer 6 to achieve a better reflective effect), or a reflective ink layer, as long as it can meet the usage requirements, and this embodiment does not make specific limitations on this.

[0070] Please continue to refer to Figure 4 , in some alternative embodiments of the present application, the flexible display component further includes a flexible diffusion layer 7, which can be attached to the surface of the flexible display layer 3 facing the flexible printed circuit board 1 by means of glue or the like, and the flexible diffusion layer 7 covers each light-transmitting area 31. In this embodiment, by disposing the flexible diffusion layer 7 between the plurality of light-emitting elements 2 and the plurality of light-transmitting areas 31, the flexible diffusion layer 7 can uniformly diffuse the light emitted by the light-emitting elements 2, so that the light emitted by the light-emitting elements 2 can be more uniformly diffused to the light-transmitting areas 31 of the flexible display layer 3, thereby improving the lighting display uniformity of the display component. Among them, in specific implementation, the flexible diffusion layer 7 can be a transparent flexible film coated with fluorescent ink, or other types of flexible diffusion films, as long as it can meet the usage requirements, and this embodiment does not make specific limitations on this. Optionally, in some embodiments, the flexible diffusion layer 7 is a fluorescent ink film sheet with a yellow color, and the light emitted by the light-emitting element 2 is blue light. Optionally, in some embodiments, a fourth adhesive layer 71 is disposed on the surface of the flexible diffusion layer 7 facing away from the flexible display layer 3, so that the flexible diffusion layer 7 can be adhered to the flexible printed circuit board 1 (or the flexible reflective layer 6, or the flexible light-shielding layer 8 described later), where the fourth adhesive layer 71 can be a glue layer of types such as double-sided tape and structural adhesive.

[0071] Please continue to refer to Figure 4 and Figure 10, in some alternative embodiments of the present application, the bendable display component further includes a flexible light-shielding layer 8. A plurality of light-transmitting holes 81 are formed in the flexible light-shielding layer 8. The flexible light-shielding layer 8 is sandwiched between the flexible printed circuit board 1 and the flexible display layer 3, and each light-transmitting hole 81 is disposed opposite to at least one light-transmitting region 31. In this embodiment, the setting of the flexible light-shielding layer 8 can reduce the loss of light emitted by the light-emitting element 2, so that the light emitted by the light-emitting element 2 can be transmitted more fully and concentratedly to the light-transmitting region 31 of the flexible display layer 3, which is beneficial to improving the light display effect of the display component. Among them, in specific implementation, the flexible light-shielding layer 8 can be made of flexible materials such as non-transparent silica gel, rubber, silicone rubber, etc., as long as it can meet the use requirements, and this embodiment does not make specific restrictions on this.

[0072] Please continue to refer to Figure 4 , in some alternative embodiments of the present application, a second adhesive layer 82 is provided on the surface of the flexible light-shielding layer 8 facing the flexible printed circuit board 1. In this way, by providing the second adhesive layer 82, it is convenient to quickly stack the flexible light-shielding layer 8 on the first surface 11 of the flexible printed circuit board 1 or it is convenient to quickly stack the flexible light-shielding layer 8 on the flexible reflective layer 6. Among them, in specific implementation, the second adhesive layer 82 can be a type of glue such as double-sided tape, structural adhesive, etc., as long as it can meet the use requirements, and this embodiment does not make specific restrictions on this.

[0073] Correspondingly, please refer to Figures 1-11 , the present application further provides an aerosol generating device, which includes a housing 9, a power supply component (not shown in the figure) installed in the housing 9, and the bendable display component in any of the above embodiments. The bendable display component is fixed on the outer surface of the housing 9 and is disposed around the housing 9 along the circumferential direction of the housing 9. The flexible printed circuit board 1 is located between the flexible display layer 3 and the housing 9, and the flexible printed circuit board 1 is electrically connected to the power supply component. Among them, the power supply component may specifically include a battery and a control circuit board, and the control circuit board is electrically connected to the battery and the circuit trace 14 of the flexible printed circuit board 1 respectively.

[0074] In this embodiment, thanks to the improvement of the above-mentioned bendable display component, the aerosol generating device of this embodiment has the advantages of a large display area and can display more visual information for users. It should be noted here that in specific implementation, the display component can be disposed around the housing 9 in a semi-surrounding manner (at this time, the display component can be enclosed in an open ring shape such as a "U" shape) or a full-surrounding manner (at this time, the display component can be enclosed in a closed ring shape such as an "O" shape) along the circumferential direction of the housing 9. The specific surrounding manner of the display component can be determined according to actual use requirements, and this embodiment does not make specific restrictions on this.

[0075] It should be noted here that other contents of the bendable display component and the aerosol generating device disclosed in this application can be referred to the prior art and will not be elaborated here.

[0076] The above are only the preferred embodiments of this application, and do not limit the patent scope of this application accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of this application under the utility model concept of this application, or direct / indirect application in other related technical fields, is included in the patent protection scope of this application.

Claims

1. A flexible display assembly, characterized in that: include: A flexible printed circuit board having circuit traces and having a first surface along its thickness direction; A plurality of light emitting elements are spaced apart and distributed on the first surface and are electrically connected to the circuit trace; as well as A flexible display layer is fixedly stacked on the first surface and covers each of the light-emitting elements. The flexible display layer has a plurality of light-transmitting areas, each of which is arranged opposite to at least one of the light-emitting elements. The area of ​​the flexible display layer other than the light-transmitting area is a shading area.

2. The bendable display assembly according to claim 1, wherein: The flexible display component also includes a current driving element and a current input interface. The first surface has a first mounting area and a second mounting area that are connected to each other. The area of ​​the first mounting area is larger than that of the second mounting area. The second mounting area is arranged at the edge of the flexible printed circuit board. A plurality of the light-emitting elements are fixed on the first mounting area. The current driving element and the current input interface are installed on the second mounting area at intervals and are both electrically connected to the circuit track.

3. The bendable display assembly according to claim 2, wherein: A notch is provided at an edge of the flexible printed circuit board, the second mounting area is located in the notch, and an area of ​​the first surface other than the second mounting area is the first mounting area; And / or, a plurality of test points made of metal material are exposed and arranged on the second installation area, and the plurality of test points are electrically connected to the circuit trace.

4. The bendable display assembly according to claim 2, wherein: The bendable display assembly further comprises a metal sheet, wherein the metal sheet is fixed to a side of the flexible printed circuit board facing away from the second mounting area; And / or, the bendable display component further includes a flexible flat cable, one end of which is plugged into the current input interface.

5. The bendable display assembly according to claim 1, wherein: The bendable display assembly further comprises a first adhesive layer, the flexible printed circuit board further comprises a second surface disposed opposite to the first surface, and the first adhesive layer is disposed on the second surface; And / or, the bendable display component further includes a flexible reflective layer, the flexible reflective layer covers the first surface, and each of the light-emitting elements is exposed from the flexible reflective layer.

6. The bendable display assembly according to claim 1, wherein: The bendable display component further comprises a flexible diffusion layer, which is attached to a surface of the flexible display layer facing the flexible printed circuit board, and the flexible diffusion layer covers each of the light-transmitting areas.

7. The flexible display assembly according to any one of claims 1 to 6, wherein: The bendable display component also includes a flexible light-shielding layer, which is provided with a plurality of light-transmitting holes. The flexible light-shielding layer is sandwiched between the flexible printed circuit board and the flexible display layer, and each of the light-transmitting holes is arranged opposite to at least one of the light-transmitting areas.

8. The bendable display assembly according to claim 7, wherein: The flexible light-shielding layer is made of non-transparent silicone, rubber or silicone rubber material; And / or, a second adhesive layer is provided on a surface of the flexible light shielding layer on one side facing the flexible printed circuit board; And / or, the light emitting element is an LED lamp bead with dimensions of 1.0 mm in length×0.5 mm in width×0.4 mm in thickness.

9. The flexible display assembly according to any one of claims 1 to 6, wherein: A third adhesive layer is disposed on a surface of the flexible display layer facing the flexible printed circuit board; And / or, the light emitting element is an LED lamp bead; And / or, the light emitting element is an LED lamp bead with dimensions of 0.5-1.5 mm in length×0.2-0.8 mm in width×0.1-0.8 mm in thickness; And / or, the flexible printed circuit board includes any one of a polyimide film and a polyester film.

10. An aerosol generating device, characterized in that: It includes an outer shell, a power supply component installed in the outer shell, and a flexible display component as described in any one of claims 1 to 9, wherein the flexible display component is fixed to the outer surface of the outer shell and is arranged around the outer shell along the circumference of the outer shell, wherein the flexible printed circuit board is located between the flexible display layer and the outer shell and is electrically connected to the power supply component.

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