CN215934894U

CN215934894U - Flash lamp, rear cover assembly for electronic equipment and electronic equipment

Info

Publication number: CN215934894U
Application number: CN202121615938.6U
Authority: CN
Inventors: 陈靖东; 朴成珉
Original assignee: Anhui Jingzhuo Optical Display Technology Co Ltd
Current assignee: Anhui Jingzhuo Optical Display Technology Co Ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-03-01
Anticipated expiration: 2031-07-14

Abstract

The present invention relates to the field of electronic device, and particularly to a flash lamp, a rear cover assembly for an electronic device, and an electronic device. The rear cover assembly comprises a rear cover body, a flash lamp and a light guide film layer, wherein the flash lamp is arranged on the rear cover body and is exposed out of the outer surface of the rear cover body, the flash lamp is integrated with a first light source and a second light source, the first light source is used for supplementing light to the camera module when a picture is taken, the light emitting color of the second light source is adjustable, and the light guide film layer covers the outer surface of the rear cover body, covers the second light source and is exposed out of the first light source. This back shroud subassembly can be adjusted to different colours to increase the decoration of back shroud subassembly, set up first light source and second light source integration simultaneously, flash light accommodation space and wiring space on the two sharing back shroud main part are favorable to practicing thrift the wiring space of back shroud subassembly and the space that holds the light source, are convenient for the frivolousization of back shroud subassembly.

Description

Flash lamp, rear cover assembly for electronic equipment and electronic equipment

Technical Field

The present invention relates to the field of electronic device, and particularly to a flash lamp, a rear cover assembly for an electronic device, and an electronic device.

Background

With the rapid development of electronic products, the appearance of the electronic products is more and more emphasized by users. For example, in order to obtain the favor of users, the appearance design requirements of mobile phone shells are higher and higher for various mobile phone manufacturers, and meanwhile, with the development of material technology, the colors of the mobile phone shells are also diversified, so that a large number of mobile phone shells with color values appear in recent years, but once the mobile phone shells are manufactured, the colors of the mobile phone shells cannot be changed. The user may enjoy the color when just buying, but the user may feel visual fatigue after long-time use, the like degree of the color is obviously reduced, and for mobile phone manufacturers, the user cannot well maintain the good feeling of the user for a long time, and the loyalty of the user to the product is difficult to maintain.

SUMMERY OF THE UTILITY MODEL

The application discloses flash light, be used for electronic equipment's back shroud subassembly and electronic equipment, this back shroud subassembly can be adjusted to different colours to increased the decorative of back shroud subassembly, set up first light source and second light source integration simultaneously, flash light accommodation space and wiring space on the two sharing back shroud main part are favorable to practicing thrift the wiring space of back shroud subassembly and the space that holds the light source, the frivolousization of the back shroud subassembly of being convenient for.

In a first aspect, the present application discloses a back cover assembly for an electronic device, the electronic device having a camera module, the back cover assembly comprising:

a rear cover main body;

the flash lamp is arranged on the rear cover main body and exposed out of the outer surface of the rear cover main body, the flash lamp is integrated with a first light source and a second light source, the first light source is used for supplementing light to the camera module when in shooting, and the light emitting color of the second light source is adjustable;

and the light guide film layer covers the outer surface of the rear cover main body, covers the second light source and exposes the first light source.

Because the leaded light membrane covers the surface at the back lid main part, and cover the second light source, expose first light source, consequently, the light that first light source sent can directly shine to external environment, and carry out the light filling for the shooting of camera module, and the second light source then can be covered by the leaded light rete, thereby the light that the second light source sent can get into in the leaded light rete, and then the leaded light rete can be with the light diffusion that the second light source sent to whole back lid main part, this moment because the luminous colour of second light source can be adjusted, consequently, whole back lid subassembly can be adjusted to different colours, the decorative of back lid subassembly has been increased, the user can be according to the hobby oneself, adjust different colours to the back lid subassembly. In addition, compare in setting up the colour of a light source adjustment back shroud subassembly alone, the flash lamp of this application embodiment is integrated with first light source and second light source, and flash lamp accommodation space and wiring space on first light source and the second light source can share the back shroud main part are favorable to practicing thrift electronic equipment's back shroud subassembly wiring space and the space that holds the light source to the frivolousization of back shroud subassembly is convenient for.

Therefore, the flash lamp in the embodiment of the application can not only supplement light when shooting, but also enable a user to use the flash lamp to adjust the color of the rear cover assembly, so that the decoration performance of the rear cover assembly is improved, meanwhile, the wiring space of the rear cover assembly of the electronic equipment and the space for accommodating the light source can be saved, and the rear cover assembly is convenient to lighten and thin.

Furthermore, a light through hole is formed in the light guide film layer, and the first light source is exposed out of the light through hole.

Because the light guide film layer is provided with the light through hole, light rays emitted by the first light source can illuminate to an external environment along the light through hole, and therefore light supplementing is smoothly carried out when the camera module shoots.

Further, the flash lamp is located in a middle portion of the rear cover main body in the width direction.

Because the light guide film layer can spread the color of the second light source in the flash lamp to the whole rear cover assembly, the flash lamp is arranged in the middle of the rear cover main body in the width direction, and the flash lamp can be spread more uniformly in the width direction.

Furthermore, the rear cover assembly further comprises a pattern layer, and the pattern layer is arranged on one surface of the light guide film layer, which deviates from the rear cover main body.

Because the second light source can be at first spread to whole back shroud subassembly by the light guide rete, then the light of second light source can pass the pattern layer to make back shroud subassembly present the light and predetermine the pattern complex effect on the pattern layer, and then increase the decorative of back shroud subassembly.

Further, the rear cover assembly further comprises a PDLC layer, and the PDLC layer is arranged on one surface, away from the rear cover main body, of the pattern layer.

When the PDLC layer is in the on state, the PDLC layer presents for transparent, the second light source then can be diffused to whole back shroud subassembly by the leaded light rete, and see through pattern layer and transparent PDLC layer, thereby present light-emitting and pattern layer complex effect, when the PDLC layer is in the off state, the PDLC layer presents for the dull polish, the second light source then can be diffused to whole back shroud subassembly by the leaded light rete, and see through pattern layer and dull polish PDLC layer, thereby demonstrate the pattern effect of dull polish, the decorative of back shroud subassembly has further been increased.

Further, the rear cover assembly further comprises a cover plate protective layer, the cover plate protective layer is arranged on one surface, deviating from the rear cover main body, of the PDLC layer, and the cover plate protective layer is made of transparent materials.

Wherein, the one side of deviating from the back lid main part on PDLC layer is provided with the apron protective layer, can form the protection to each layer between back lid main part and the PDLC layer, increases the life of back cover subassembly.

Furthermore, the thickness of the light guide film layer is A, and A is more than or equal to 75 microns and less than or equal to 100 microns. When the thickness of the light guide film layer is between 75 μm and 100 μm, the light guide film layer can be made as thin as possible on the basis of sufficient structural strength, and the light guide film layer has a good diffusion effect on the second light source.

Furthermore, the thickness of the pattern layer is B, and B is more than or equal to 23 mu m and less than or equal to 50 mu m. When the thickness of the pattern layer is between 23 μm and 50 μm, the effect of light penetrating through the pattern layer is better and a better decorative pattern effect can be presented on the basis of ensuring the structural strength of the pattern layer.

Further, the thickness of the PDLC layer is C, and C is more than or equal to 55 mu m and less than or equal to 100 mu m. When the thickness of the PDLC layer is between 55 and 100 μm, the rear cover component can be frosted on the basis of ensuring the structural strength of the PDLC layer.

Furthermore, the thickness of the cover plate protective layer is D, and D is more than or equal to 400 mu m and less than or equal to 550 mu m. When the thickness of the cap protective layer is between 400 μm and 550 μm, the protection of each layer can be satisfied while making the cap protective layer as thin as possible.

Furthermore, the rear cover assembly further comprises a first optical adhesive layer, and the first optical adhesive layer is arranged between the pattern layer and the light guide film layer; the back cover further comprises a second optical adhesive layer, and the second optical adhesive layer is arranged between the pattern layer and the PDLC layer; the rear cover further comprises a third optical adhesive layer, and the third optical adhesive layer is arranged between the PDLC layer and the cover plate protective layer.

Wherein, firmly link together each layer through optical cement layer to make rear cover subassembly's structure comparatively stable.

Furthermore, the thickness of the first optical adhesive layer is E, and E is more than or equal to 25 mu m and less than or equal to 50 mu m; the thickness of the second optical adhesive layer is F, and F is more than or equal to 25 mu m and less than or equal to 50 mu m; the thickness of the third optical adhesive layer is G, and G is more than or equal to 25 mu m and less than or equal to 50 mu m.

The thickness of each optical adhesive layer is 25-50 μm, so that the optical adhesive layers can be as thin as possible, and the layers can be firmly connected together, thereby facilitating the lightening and thinning of the rear cover assembly.

In a second aspect, the present application further discloses a flash lamp, the flash lamp is the first aspect the flash lamp in the rear cover assembly, the flash lamp further comprises a PCB board, the first light source and the second light source are both disposed on the PCB board, and the PCB board is used for sending a control signal to the first light source and the second light source to open or close the first light source module and adjust the light emitting color of the second light source.

Wherein, the user can adjust opening or closing of first light source through the setting form of adjusting the PCB board to and the luminous colour of second light source, thereby the user can open first light source when shooing and carry out the light filling, also can adjust the colour of back shroud subassembly through the colour of adjusting the second light source, increased user's maneuverability.

In a third aspect, the present application also discloses an electronic device, including: the rear cover assembly of the first aspect; the camera module is arranged on the rear cover main body of the rear cover assembly and is exposed out of the outer surface of the rear cover main body.

Wherein, because the rear cover component can be adjusted to different colors, the decoration of the electronic equipment is better.

Furthermore, the flash lamp of rear cover subassembly is located one side of camera module, and first light source is close to for the second light source camera module setting.

Wherein, the flash light setting is in one side of camera module, can make the first light source in the flash light carry out the light filling when shooing for camera module, is close to camera module setting with the relative second light source of first light source simultaneously, can make first light source and camera module more nearly to make first light source carry out the light filling for camera module better, the second light source will be far away some with camera module distance, thereby reduce the influence of the light of second light source transmission to the shooting of camera module.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a camera module disposed on a rear cover assembly in an embodiment of the present disclosure;

FIG. 2 is an exploded view of the structure of FIG. 1;

FIG. 3 is a schematic structural view of a flashlight in the middle of the rear cover assembly in the width direction according to the embodiment of the present application;

FIG. 4 is an exploded view of the structure of FIG. 3;

FIG. 5 is a schematic structural view of a rear cover assembly according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a patterned layer according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of another patterned layer in the embodiment of the present application;

FIG. 8 is a schematic view of a modified rear cover assembly based on FIG. 5;

fig. 9 is a schematic structural diagram of an electronic device in an embodiment of the present application.

Reference numerals: 1-a rear cover component, 11-a rear cover main body, 111-a groove, 12-a flash lamp, 121-a first light source, 122-a second light source, 123-a PCB (printed Circuit Board), 13-a light guide film layer, 131-a light through hole, 132-a camera hole, 14-a pattern layer, 15-a PDLC (polymer dispersed liquid Crystal) layer, 16-a cover plate protective layer, 17-a first optical adhesive layer, 18-a second optical adhesive layer, 19-a third optical adhesive layer and 2-a camera module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The technical solution of the present application will be further described with reference to the following embodiments and accompanying drawings.

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a rear cover assembly provided with a camera module according to an embodiment of the present disclosure, and fig. 2 is an exploded structural view based on fig. 1. The embodiment of the application discloses a rear cover assembly 1 for electronic equipment, and the electronic equipment is provided with a camera module 2. Specifically, the rear cover assembly 1 includes a rear cover body 11, a flash 12 and a light guide film layer 13, the flash 12 is disposed on the rear cover body 11 and exposed out of the outer surface of the rear cover body 11, the flash 12 is integrated with a first light source 121 and a second light source 122, the first light source 121 is used for supplementing light to the camera module 2 when taking a picture, the light emitting color of the second light source 122 is adjustable, and the light guide film layer 13 covers the outer surface of the rear cover body 11, covers the second light source 122 and exposes the first light source 121.

Firstly, since the flash 12 is disposed on the rear cover body 11 and exposed to the outer surface of the rear cover body 11 (i.e. the upper surface of the rear cover body 11 in fig. 2), and the flash 12 is integrated with the first light source 121 and the second light source 122, the light emitted by the first light source 121 and the light emitted by the second light source 122 are both exposed to the outer surface of the rear cover body 11; secondly, because the light guide film covers the outer surface of the rear cover main body 11, and covers the second light source 122, expose the first light source 121, therefore the light emitted by the first light source 121 can directly illuminate the external environment, and supplement light for the shooting of the camera module 2, and the second light source 122 can be covered by the light guide film layer 13, thereby the light emitted by the second light source 122 can enter the light guide film layer 13, and then the light guide film layer 13 can diffuse the light emitted by the second light source 122 to the whole rear cover main body 11, at this moment, because the luminous color of the second light source 122 can be adjusted, therefore, the whole rear cover assembly 1 can be adjusted to different colors, the decoration of the rear cover assembly 1 is increased, and a user can adjust different colors of the rear cover assembly 1 according to own preference. In addition, compared with the case that a light source is separately arranged to adjust the color of the rear cover assembly 1, the flash 12 of the embodiment of the present application is integrated with the first light source 121 and the second light source 122, and the first light source 121 and the second light source 122 can share the accommodating space and the wiring space of the flash 12 on the rear cover main body 11, which is beneficial to saving the wiring space of the rear cover assembly 1 of the electronic device and the space for accommodating the light source, thereby facilitating the lightening and thinning of the rear cover assembly 1.

Therefore, the flash lamp 12 in the embodiment of the present application can not only supplement light during photographing, but also enable a user to adjust the color of the rear cover assembly 1 by using the flash lamp 12, thereby increasing the decoration performance of the rear cover assembly 1, and simultaneously saving the wiring space of the rear cover assembly 1 of the electronic device and the space for accommodating the light source, thereby facilitating the lightening and thinning of the rear cover assembly 1.

It should be noted that, the flash lamp 12 is disposed on the rear cover body 11, specifically, the flash lamp 12 may be directly disposed on the rear cover body 11, and certainly, a groove 111 may also be formed on the outer surface of the rear cover body 11, so that when the flash lamp 12 is embedded in the groove 111, the outer surface of the flash lamp 12 may be flush with the outer surface of the rear cover body 11, and then the surface of the light guiding film layer 13, which is attached to the rear cover body 11, may be made flat, which reduces the difficulty in making the light guiding film layer 13, and facilitates the attachment of the light guiding film layer 13 to the rear cover body 11. Meanwhile, the rear cover main body 11 has an inner surface (a lower surface in fig. 2) and an outer surface (an upper surface in fig. 2) which are opposite to each other, and since the electronic device generally includes the rear cover assembly 1, a main board (not shown), a screen (not shown), and the like, the main board is enclosed inside the electronic device by the rear cover assembly 1 and the screen, the inner surface of the rear cover main body 11 also refers to a surface of the rear cover assembly 1 close to the screen, and the outer surface of the rear cover main body 11 also refers to a surface of the rear cover assembly 1 away from the screen.

It is also noted that the rear cover main body 11 may be any known main body that can be used for a housing of an electronic device. Specifically, glass, plastic (such as PET (polyethylene terephthalate) sheet, PC (polycarbonate) sheet, PMMA (polymethyl methacrylate) sheet, TPU (thermoplastic elastomer) film, PC + PMMA composite sheet, PET + PMMA composite sheet, etc.), ceramic, etc., may be used, and the present application is not limited thereto.

In addition, the light guide film is a light conductive material capable of converting a point light source into a surface light source, so that the light guide film layer 13 is disposed on the rear cover body 11, and the second light source 122 can be diffused to the whole rear cover body 11, thereby making the decoration of the whole rear cover body 11 better. Meanwhile, the light guide film has the advantages of being ultrathin and uniform in light emission, so that the rear cover assembly 1 is convenient to lighten and thin, and the color of the rear cover assembly 1 is uniform.

Next, the embodiment of the present application will describe the rear cover assembly 1 of the electronic device in more detail with reference to practical usage scenarios.

Taking an electronic device as an example of a mobile phone, when the electronic device is a mobile phone, a back cover of the mobile phone corresponds to the back cover assembly 1, because the back cover main body 11 of the back cover assembly 1 is provided with the flash lamp 12, the flash lamp 12 is integrated with the first light source 121 and the second light source 122, and the light guide film layer 13 covers the back cover main body 11, covers the second light source 122, and exposes the first light source 121, at this time, the light of the first light source 121 can directly illuminate the external environment, and the light of the second light source 122 can enter the light guide film layer 13 and be diffused to the whole back cover assembly 1 by the light guide film layer 13. When the user need take a picture, can control first light source 121 and open for camera module 2 light filling of shooing, when the user needs the colour of adjusting the back shroud subassembly 1 of cell-phone, can adjust the colour of back shroud subassembly 1 through the luminous colour of control second light source 122, thereby satisfy user's demand.

In some embodiments, the flash lamp 12 is disposed near the edge of the back cover main body 11, and in order to expose the first light source 121, an escape opening corresponding to the first light source 121 may be formed at the edge of the light guide film layer 13, so as to expose the first light source 121.

In other embodiments, the flash 12 is disposed away from the edge of the back cover body 11, and in order to expose the first light source 121, a light-passing hole 131 corresponding to the first light source 121 may be formed on the light guide film layer 13, so as to expose the first light source 121. It should be noted that, because the flash 12 is integrated with the first light source 121 and the second light source 122, and the light guiding film layer 13 covers the second light source 122, so as to diffuse the light emitted by the second light source 122 to the whole rear cover assembly 1, the flash 12 is far away from the edge, that is, the flash 12 is close to the middle of the rear cover main body 11, then the more uniform the light diffused to the whole rear cover assembly 1 by the light guiding film layer 13 is, at this time, the first light source 121 is also close to the middle of the rear cover main body 11, so that the light passing hole 131 needs to be formed in the light guiding film layer 13 to expose the first light source 121, thereby avoiding affecting the first light source 121 to supplement light to the camera module 2.

Referring to fig. 3 and 4, the strobe 12 is located in the middle of the rear cover main body 11 in the width direction (approximately the up-down direction in fig. 3). The light guide film layer 13 diffuses the color of the second light source 122 in the flash 12 to the whole rear cover assembly 1, and the flash 12 is disposed in the middle of the rear cover body 11 in the width direction, so that the diffusion of the flash 12 in the width direction is relatively uniform. Note that the flash 12 is also located between the middle and the edge of the rear cover main body 11 in the longitudinal direction (left-right direction in fig. 3), and when the user holds the cellular phone, the hand does not interfere with the flash 12.

Referring to fig. 5, the rear cover assembly 1 further includes a pattern layer 14, the pattern layer 14 is disposed on a surface of the light guide film layer 13 away from the rear cover main body 11, so that the second light source 122 is firstly diffused to the whole rear cover assembly 1 by the light guide film layer 13, and then the light of the second light source 122 passes through the pattern layer 14, so that the rear cover assembly 1 presents an effect of matching the light with the preset pattern on the pattern layer 14, thereby increasing the decoration of the rear cover assembly 1.

The pattern layer 14 may have a LOGO or a decorative pattern. Specifically, in the embodiments of the present application, the decoration pattern is an eagle, please refer to fig. 6, in some embodiments, black ink is coated at the position of the eagle in the drawing, so that the light coming out from the light guide film layer 13 is blocked at the position of the eagle, and the light passes through the place except the eagle, so as to form the effect that the eagle is surrounded by the surrounding light, and the light around the eagle supports the eagle, thereby increasing the decoration of the rear cover assembly 1; referring to fig. 7, in other embodiments, black ink is coated at a position other than the eagles in the drawing, so that light emitted from the light guide film layer 13 only passes through the position of the eagles to form a bright eagle effect, and further, the pattern on the rear cover assembly 1 is more prominent, which is beneficial to increasing the identification of the electronic device.

Further, the rear cover assembly 1 further includes a PDLC (Polymer Dispersed Liquid Crystal) layer, and the PDLC layer 15 is disposed on a surface of the pattern layer 14 facing away from the rear cover main body 11. Because the PDLC layer 15 can realize the conversion between transparent and opaque by adjusting the voltage, and the power-on state is transparent, and the power-off state is frosted, when the PDLC layer 15 is in the power-on state, the PDLC layer 15 appears transparent, the second light source 122 can be diffused to the whole rear cover assembly 1 by the light guide film layer 13, and penetrates through the pattern layer 14 and the transparent PDLC layer 15, so as to present the effect of matching the light with the pattern layer 14, when the PDLC layer 15 is in the power-off state, the PDLC layer 15 appears frosted, the second light source 122 can be diffused to the whole rear cover assembly 1 by the light guide film layer 13, and penetrates through the pattern layer 14 and the frosted PDLC layer 15, so as to present the pattern effect of frosting, and further increase the decorative performance of the rear cover assembly 1.

Further, the rear cover assembly 1 further includes a cover protection layer 16, the cover protection layer 16 is disposed on a surface of the PDLC layer 15 departing from the rear cover main body 11, and the cover protection layer 16 is made of a transparent material. The cover plate protective layer 16 is arranged on the surface, away from the rear cover main body 11, of the PDLC layer 15, so that each layer between the rear cover main body 11 and the PDLC layer 15 can be protected, and the service life of the rear cover assembly 1 is prolonged. In addition. The cover protection layer 16 is made of a transparent material, and does not affect the effect of the second light source 122, the light guide film layer 13, the pattern layer 14 and the PDLC layer 15.

The cover protection layer 16 may be made of glass, polyethylene terephthalate (PET), Polycarbonate (PC), polymethyl methacrylate (PMMA), Polyimide (PI), or the like, and the present application is not limited thereto.

In the present application, the inventors have found through a large number of experiments that the thicknesses of the light guide film layer 13, the pattern layer 14, the PDLC layer 15, and the cover protection layer 16 also have an important effect on the effect exhibited by the rear cover assembly 1.

Specifically, the thickness of the light guide film layer 13 is a, a is greater than or equal to 75 μm and less than or equal to 100 μm, and when the thickness of the light guide film layer 13 is between 75 μm and 100 μm, the light guide film layer 13 can be as thin as possible on the basis of sufficient structural strength of the light guide film layer 13, and the diffusion effect of the light guide film layer 13 on the second light source 122 can be better. A may be 75 μm, 80 μm, 85 μm, 90 μm, 95 μm, 100 μm, or the like, and examples of the present application are not particularly limited thereto.

Furthermore, the thickness of the pattern layer 14 is B, B is larger than or equal to 23 μm and smaller than or equal to 50 μm, and when the thickness of the pattern layer 14 is between 23 μm and 50 μm, the effect of transmitting light through the pattern layer 14 is better on the basis of ensuring the structural strength of the pattern layer 14, and a better decorative pattern effect can be presented. In addition, B may be 23 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, or the like, and examples of the present application are not particularly limited herein.

Further, the thickness of the PDLC layer 15 is C, 55 μm is less than or equal to C and less than or equal to 100 μm, and when the thickness of the PDLC layer 15 is between 55 μm and 100 μm, the back cover assembly 1 can present a frosted effect on the basis of ensuring the structural strength of the PDLC layer 15. The C may be 55 μm, 60 μm, 65 μm, 70 μm, 75 μm, 80 μm, 85 μm, 90 μm, 95 μm, 100 μm, etc., and the present invention is not particularly limited thereto.

Further, the thickness of the cover protection layer 16 is D, D is larger than or equal to 400 μm and smaller than or equal to 550 μm, and when the thickness of the cover protection layer 16 is between 400 μm and 550 μm, the cover protection layer 16 can be made as thin as possible and the protection of each layer can be satisfied. D may be 400. mu.m, 410. mu.m, 420. mu.m, 430. mu.m, 440. mu.m, 450. mu.m, 460. mu.m, 470. mu.m, 480. mu.m, 490. mu.m, 500. mu.m, 510. mu.m, 520. mu.m, 530. mu.m, 540. mu.m, 550. mu.m, etc., and the present application is not particularly limited thereto.

Referring to fig. 8, the rear cover assembly 1 further includes a first optical adhesive layer 17, a second optical adhesive layer 18 and a third optical adhesive layer 19, the first optical adhesive layer 17 is disposed between the pattern layer 14 and the light guide film layer 13, and can firmly connect the pattern layer 14 and the light guide film layer 13 together, the second optical adhesive layer 18 is disposed between the pattern layer 14 and the PDLC layer 15, and can firmly connect the pattern layer 14 and the PDLC layer 15 together, and the third optical adhesive layer 19 is disposed between the PDLC layer 15 and the cover protection layer 16, and can firmly connect the PDLC layer 15 and the cover protection layer 16 together, that is, the optical adhesive layers firmly connect the layers together, so that the structure of the rear cover assembly 1 is stable.

Furthermore, the thickness of the first optical adhesive layer 17 is E, E is more than or equal to 25 μm and less than or equal to 50 μm, the thickness of the second optical adhesive layer 18 is F, F is more than or equal to 25 μm and less than or equal to 50 μm, the thickness of the third optical adhesive layer 19 is G, G is more than or equal to 25 μm and less than or equal to 50 μm, namely, the thickness of each optical adhesive layer is between 25 μm and 50 μm, so that the optical adhesive layers can be as thin as possible, and simultaneously, the layers can be firmly connected together, thereby facilitating the lightening and thinning of the rear cover assembly 1.

The thickness of each optical adhesive layer may be 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, etc., as long as the optical adhesive layer can be made as thin as possible, which facilitates the thinning of the back cover assembly 1, and the layers can be firmly connected together, and the present application is not limited thereto.

Further, the embodiment of the present application also discloses a flash 12, where the flash 12 is the flash 12 in the rear cover assembly 1, the flash 12 further includes a PCB 123, the first light source 121 and the second light source 122 are both disposed on the PCB 123, and the PCB 123 is configured to send a control signal to the first light source 121 and the second light source 122 to turn on or off the first light source 121 and adjust the light emitting color of the second light source 122. Therefore, the user can adjust the on or off of the first light source 121 and the light emitting color of the second light source 122 by adjusting the setting program of the PCB 123, so that the user can turn on the first light source 121 for light supplement during photographing, and can also adjust the color of the rear cover assembly 1 by adjusting the color of the second light source 122, thereby increasing the operability of the user.

In addition, please refer to fig. 1, fig. 2 and fig. 9, the present application further discloses an electronic device, which includes the above-mentioned rear cover assembly 1 and the camera module 2, wherein the camera module 2 is disposed on the rear cover main body 11 of the rear cover assembly 1 and is exposed out of the outer surface of the rear cover main body 11. Since the rear cover assembly 1 can be adjusted to different colors, the electronic device is more decorative.

It should be noted that, because the camera module 2 is disposed on the back cover main body 11 of the back cover assembly 1, when the light guide film layer 13 covers the back cover main body 11, the camera hole 132 needs to be further disposed, so as to avoid the influence of the light guide film layer 13 on the shooting effect of the camera module 2.

It should be noted that the electronic device may be an electronic device such as a tablet computer, a notebook computer, a mobile phone, a tablet computer, or a handheld computer, as long as the electronic device needs to be equipped with the camera module 2 to implement functions such as photographing, shooting, or scanning, and the embodiment of the present application is not limited herein.

Further, the flash 12 of the rear cover assembly 1 is disposed at one side of the camera module 2, and the first light source 121 is disposed close to the camera module 2 relative to the second light source 122.

Wherein, flash light 12 sets up the one side at camera module 2, can make first light source 121 in flash light 12 carry out the light filling for camera module 2 when shooing, be close to camera module 2 setting with first light source 121 relative second light source 122 simultaneously, can make first light source 121 and camera module 2 more nearly, thereby make first light source 121 carry out the light filling for camera module 2 better, second

light source

122 and 2 distant will some far away of camera module, thereby reduce the influence of the light of second light source 122 transmission to camera module 2's shooting.

The flash lamp, the rear cover assembly for the electronic device and the electronic device disclosed in the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by applying specific examples, and the description of the above embodiments is only used to help understand the principle and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A back cover assembly for an electronic device having a camera module, the back cover assembly comprising:

a rear cover main body;

2. The rear cover assembly of claim 1, wherein the light guide film layer has a light hole, and the first light source is exposed from the light hole.

3. The rear cover assembly as claimed in claim 2, wherein the flash lamp is located at a middle portion of the rear cover main body in a width direction.

4. The back cover assembly of claim 1, further comprising a pattern layer disposed on a side of the light guide film layer facing away from the back cover body.

5. The rear cover assembly as claimed in claim 4, further comprising a PDLC layer disposed on a side of the pattern layer facing away from the rear cover body.

6. The rear cover assembly of claim 5, further comprising a cover protection layer disposed on a side of the PDLC layer facing away from the rear cover body, wherein the cover protection layer is made of a transparent material.

7. The rear cover assembly as claimed in claim 6, wherein the light guide film layer has a thickness A, A is 75 μm or more and 100 μm or less; and/or the thickness of the pattern layer is B, and B is more than or equal to 23 mu m and less than or equal to 50 mu m; and/or the thickness of the PDLC layer is C, wherein C is more than or equal to 55 mu m and less than or equal to 100 mu m; and/or the thickness of the cover plate protective layer is D, and D is more than or equal to 400 mu m and less than or equal to 550 mu m.

8. The rear cover assembly of claim 6, further comprising a first optical adhesive layer disposed between the pattern layer and the light guide film layer;

and/or the rear cover further comprises a second optical adhesive layer, and the second optical adhesive layer is arranged between the pattern layer and the PDLC layer;

and/or the rear cover further comprises a third optical adhesive layer, and the third optical adhesive layer is arranged between the PDLC layer and the cover plate protective layer.

9. The rear cover assembly as claimed in claim 8, wherein the thickness of the first optical adhesive layer is E, and E is more than or equal to 25 μm and less than or equal to 50 μm; and/or the thickness of the second optical adhesive layer is F, and F is more than or equal to 25 mu m and less than or equal to 50 mu m; and/or the thickness of the third optical adhesive layer is G, and G is more than or equal to 25 mu m and less than or equal to 50 mu m.

10. A flashlight, wherein the flashlight is the flashlight in the rear cover assembly of any one of claims 1-9, the flashlight further comprises a PCB, the first light source and the second light source are both disposed on the PCB, and the PCB is configured to send a control signal to the first light source and the second light source to turn on or off the first light source and adjust the light emitting color of the second light source.

11. An electronic device, comprising:

the rear cover assembly of any one of claims 1-9;

the camera module is arranged on the rear cover main body of the rear cover assembly and is exposed out of the outer surface of the rear cover main body.

12. The electronic device of claim 11, wherein the flash of the rear cover assembly is disposed on a side of the camera module, and the first light source is disposed close to the camera module relative to the second light source.