Camera module and electronic equipment

Abstract

The embodiment of the present application provides a camera module and an electronic device. The camera module includes a photosensitive chip, a lens assembly, a cover assembly, and a driving mechanism arranged in sequence; the cover assembly includes a first cover and a second cover, the first cover and the second cover are arranged at a relative interval, the first cover is arranged close to the lens assembly, the first cover and the second cover are enclosed to form a cavity, and the cavity is filled with a light-absorbing liquid; the driving mechanism is connected to at least one of the first cover and the second cover, and the driving mechanism is used to adjust the distance between the first cover and the second cover, so as to adjust the light transmittance of the cover assembly by changing the thickness of the light-absorbing liquid in the cavity.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a camera module and electronic equipment. Background Art

[0002] With the development of communication technology, the functions of electronic devices are becoming more and more abundant, and users have higher and higher requirements for the shooting of electronic devices. In order to obtain better shooting effects, people continue to improve camera modules to achieve different shooting functions.

[0003] In the prior art, camera modules generally increase the number of lenses to meet the needs of different shooting scenes. The superposition of multiple lenses not only increases the size of the camera module, but also increases the difficulty of designing electronic devices and makes layout more difficult. In addition, the lens has a light hole, and the light hole has color difference with other parts, which affects the appearance of the electronic device. Summary of the invention

[0004] In view of the above problems, the present invention is proposed to provide a camera module and electronic device that overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a camera module, wherein the camera module includes a photosensitive chip, a lens assembly, a cover assembly, and a driving mechanism which are arranged in sequence;

[0007] The cover plate assembly comprises a first cover plate and a second cover plate, the first cover plate and the second cover plate are arranged with a relative spacing, the first cover plate is arranged close to the lens assembly, the first cover plate and the second cover plate are enclosed to form a cavity, and the cavity is filled with a light absorbing liquid;

[0008] The driving mechanism is connected to at least one of the first cover plate and the second cover plate, and is used to adjust the distance between the first cover plate and the second cover plate so as to adjust the light transmittance of the cover plate assembly by changing the thickness of the light absorbing liquid in the cavity.

[0009] In a second aspect, an embodiment of the present application proposes an electronic device, which includes the camera module.

[0010] In an embodiment of the present application, the camera module includes a photosensitive chip, a lens assembly, a cover assembly and a driving mechanism arranged in sequence; the cover assembly includes a first cover and a second cover, the first cover and the second cover are arranged at a relative interval, the first cover is arranged close to the lens assembly, the first cover and the second cover are enclosed to form a cavity, and the cavity is filled with a light-absorbing liquid; the driving mechanism is connected to at least one of the first cover and the second cover, and the driving mechanism is used to adjust the distance between the first cover and the second cover, so as to adjust the transmittance of the cover assembly by changing the thickness of the light-absorbing liquid in the cavity. The first cover and the second cover are controlled by the driving mechanism to approach or move away from each other, change the thickness of the cavity, and thus change the thickness of the light-absorbing liquid in the cavity, so as to adjust the amount of light passing through the first cover, and adjust its transmittance. In addition, the gradual and continuous change of the thickness of the cavity can enable the cover assembly to achieve continuous adjustability of the transmittance, so that the camera module can meet the needs of various shooting scenes, such as long exposure, etc., and has a simple structure. Furthermore, when the cavity between the first cover plate and the second cover plate is thick, light cannot pass through the first cover plate and is in a light-shielding state, so that there is no significant color difference between the cover plate assembly and other parts of the camera module appearance, achieving the effect of a hidden camera. The color difference between the light hole of the lens assembly and other parts is avoided, and the overall appearance of the electronic device is improved.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0013] Figure 1 is a structural schematic diagram of a camera module described in an embodiment of the present application;

[0014] Figure 2 is another structural schematic diagram of a camera module described in an embodiment of the present application;

[0015] Figure 3 is a top view of a camera module described in an embodiment of the present application;

[0016] Figure 4 is a structural schematic diagram of a cover plate assembly described in an embodiment of the present application;

[0017] Figure 5 This is one of the partial structural schematic diagrams of a camera module described in an embodiment of the present application;

[0018] Figure 6 This is a second schematic diagram of a partial structure of a camera module described in an embodiment of the present application;

[0019] Figure 7 This is the third partial structural diagram of a camera module described in an embodiment of the present application.

[0020] Figure numerals: 100-photosensitive chip; 200-lens assembly; 300-cover assembly; 400-driving mechanism; 310-first cover; 320-second cover; 330-cavity; 340-light-absorbing liquid; 350-light-transmitting area; 360-non-light-transmitting area; 351-light-transmitting cavity; 361-liquid storage cavity; 370-flexible membrane; 500-resetting elastic member; 362-first groove; 363-second groove; 410-first magnetic member; 420-second magnetic member; 600-filter. DETAILED DESCRIPTION

[0021] Embodiments of the present invention will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] The term "first" or "second" in the specification and claims of the present application may include one or more of the features explicitly or implicitly. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0023] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Reference Figures 1 to 7 , shows a schematic structural diagram of a camera module according to an embodiment of the present application, which may specifically include: a photosensitive chip 100, a lens assembly 200, a cover assembly 300 and a driving mechanism 400 arranged in sequence;

[0026] The cover plate assembly 300 includes a first cover plate 310 and a second cover plate 320. The first cover plate 310 and the second cover plate 320 are arranged relative to each other and spaced apart from each other. The first cover plate 310 is arranged close to the lens assembly 200. The first cover plate 310 and the second cover plate 320 enclose a cavity 330, and the cavity 330 is filled with a light absorbing liquid 340.

[0027] The driving mechanism 400 is connected to at least one of the first cover plate 310 and the second cover plate 320 , and is used to adjust the distance between the first cover plate 310 and the second cover plate 320 to adjust the transmittance of the cover plate assembly 300 by changing the thickness of the light absorbing liquid 340 in the cavity 330 .

[0028] In the embodiment of the present application, the first cover plate 310 and the second cover plate 320 can be controlled by the driving mechanism 400 to move closer to or farther from each other, thereby changing the thickness of the cavity 330, and thus changing the thickness of the light absorbing liquid 340 in the cavity 330, so as to adjust the amount of light that passes through the cover plate assembly 300 to reach the lens assembly 200, and adjust the light transmittance of the cover plate assembly 300. In addition, the gradual and continuous change of the thickness of the cavity 330 can enable the cover plate assembly 300 to achieve continuous adjustability of the light transmittance, so that the camera module can meet the needs of various shooting scenes, such as long exposure, etc., and the structure is simple. In addition, when the thickness of the cavity 330 between the first cover plate 310 and the second cover plate 320 is large, the thickness of the light absorbing liquid 340 in the cavity 330 is large, and the light cannot pass through the cover plate assembly 300 and is in a light-shielding state, so that the cover plate assembly 300 and other parts of the appearance of the camera module have no large color difference, and the effect of a hidden camera is achieved. The influence of chromatic aberration between the light hole of the lens assembly 200 and other parts is avoided, thereby improving the overall appearance of the electronic device.

[0029] Specifically, in the embodiments of the present application, Figure 1As shown, the arrow indicates the incident direction of the light. The light can be incident from the second cover plate 320 first, pass through the cavity 330 and the first cover plate 310 in sequence, and reach the lens assembly 200. By adjusting the transmittance of the cover plate assembly 300, the amount of light entering the lens assembly 200 from the cover plate assembly 300 is adjusted, and its luminous flux is changed, so that the lens module can realize various shooting scene requirements such as long exposure. There is no need to separately install a neutral density (ND) filter and other structures in the camera module.

[0030] For example, in the embodiment of the present application, the first cover plate 310 and the second cover plate 320 are both light-transmissive cover plates, and can be made of glass, resin, plastic, etc. The materials of the first cover plate 310 and the second cover plate 320 can be the same or different, and the embodiment of the present application does not limit the specific materials of the first cover plate 310 and the second cover plate 320.

[0031] In the embodiment of the present application, for example, the light absorbing liquid 340 may include materials with light absorbing effects such as ink, black pigment, etc., and the specific material of the light absorbing liquid 340 may not be limited in the embodiment of the present application. The light transmittance refers to the percentage of light that can pass through the cover assembly 300, and may include any value between 0-100%. The photosensitive chip 100 may include a complementary metal oxide semiconductor photosensitive chip (Complementary Metal Oxide Semiconductor Sensor, CMOS Sensor).

[0032] In the embodiment of the present application, the camera module can be used as a front camera module and arranged on the front side of the electronic device, or can be used as a rear camera module and arranged on the rear side of the electronic device. The embodiment of the present application does not limit the specific application method of the camera module.

[0033] Specifically, in an embodiment of the present application, the camera module may further include a filter 600, which is disposed between the photosensitive chip 100 and the lens assembly 200 and is used to filter infrared light and ultraviolet light, such as an infrared filter (IR Filter) to improve the imaging effect of the photosensitive chip 100.

[0034] Optionally, in the embodiment of the present application, the first cover plate 310 and the second cover plate 320 both include a light-transmitting area 350 and a non-light-transmitting area 360 arranged around the light-transmitting area 350, and the light-transmitting area 350 is used for light to pass through. The light-transmitting areas 350 of the first cover plate 310 and the second cover plate 320 are enclosed to form a light-transmitting cavity 351, and the non-light-transmitting areas 360 of the first cover plate 310 and the second cover plate 320 are enclosed to form a liquid storage cavity 361, and the liquid storage cavity 361 is connected to the light-transmitting cavity 351, and the light-absorbing liquid 340 is filled in the light-transmitting cavity 351 and the liquid storage cavity 361.

[0035] In this way, the light-transmitting area 350 of the first cover plate 310 and the second cover plate 320 encloses a light-transmitting cavity 351 located in the middle, which enables the light-absorbing liquid 340 in the light-transmitting cavity 351 to adjust the light passing through and adjust its transmittance. The non-light-transmitting area 360 of the first cover plate 310 and the second cover plate 320 encloses a liquid storage cavity 361 located at the periphery, which can store the remaining light-absorbing liquid 340 that does not adjust the transmittance of the light-transmitting cavity 351. In addition, the liquid storage cavity 361 is connected to the light-transmitting cavity 351, which can realize the circulation of the light-absorbing liquid 340 between the liquid storage cavity 361 and the light-transmitting cavity 351, which is convenient for adjusting the thickness of the light-absorbing liquid 340 in the light-transmitting cavity 351, and realizing the continuous adjustability of the cover plate assembly 300.

[0036] In the embodiment of the present application, optionally, the cover assembly 300 further includes a flexible film 370, which is connected to the periphery of the liquid storage cavity 361 and is used to seal the liquid storage cavity 361. Since the light-transmitting cavity 351 is located at the inner periphery of the liquid storage cavity 361, the flexible film 370 simultaneously seals the light-transmitting cavity 351. In this way, a good seal can be achieved for all the light-absorbing liquid 340 in the light-transmitting cavity 351 and the liquid storage cavity 361, thereby preventing the light-absorbing liquid 340 from leaking out and causing a short circuit. In addition, the flexible film 370 can undergo elastic deformation, and can adapt to the thickness changes of the light-transmitting cavity 351 and the liquid storage cavity 361, thereby achieving continuous adjustability of the light transmittance of the cover assembly 300.

[0037] For example, in the embodiment of the present application, the flexible membrane 370 can be a thin film with a relatively small thickness, and is made of a light-transmitting material such as rubber, silicone, etc., and has good flexibility, wear resistance, etc. The embodiment of the present application may not limit the specific material of the flexible membrane 370.

[0038] Specifically, in the embodiments of the present application, Figures 5 to 7 As shown, the cover plate assembly 300 includes a light-transmitting state and a light-shielding state. In the light-transmitting state, the first cover plate 310 is close to the second cover plate 320, and the light-absorbing liquid 340 is located in the liquid storage cavity 361. In the light-shielding state, the first cover plate 310 is away from the second cover plate 320, and the light-absorbing liquid 340 is at least partially located in the light-transmitting cavity 351.

[0039] In the embodiment of the present application, in the light-transmitting state, such as Figure 6 As shown, the distance between the first cover plate 310 and the second cover plate 320 is small, and there is only a light-transmissive flexible film 370 between the two. The light-absorbing liquid 340 is squeezed and located in the liquid storage cavity 361, and there is no light-absorbing liquid 340 in the light-transmissive cavity 351. The first cover plate 310 and the second cover plate 320 can achieve complete light transmission, and the light transmittance of the cover plate assembly 300 can be 100%. In the light-shielding state, Figure 5 As shown, the distance between the first cover plate 310 and the second cover plate 320 is relatively large, the light-transmitting cavity 351 contains more light-absorbing liquid 340, and the liquid storage cavity 361 contains only a small amount of light-absorbing liquid 340. The thickness of the light-absorbing liquid 340 in the light-transmitting cavity 351 is relatively large, and light cannot pass through the first cover plate 310. The light transmittance of the cover plate assembly 300 is 0%, so that there is no large color difference between the cover plate assembly 300 and other parts of the appearance of the camera module, thereby achieving the effect of a hidden camera.

[0040] Specifically, in the embodiment of the present application, the thickness of the light-transmitting cavity 351 may be set to a first preset threshold and a second preset threshold, and the cover assembly 300 may also include a partial light-transmitting state between the light-transmitting state and the light-shielding state. When the thickness of the light-transmitting cavity 351 is less than the first preset threshold, the cover assembly 300 is in the light-transmitting state, and the light transmittance of the cover assembly 300 is 100%. When the thickness of the light-transmitting cavity 351 is greater than or equal to the second preset threshold, the cover assembly 300 is in the light-shielding state, and the light transmittance of the cover assembly 300 is 0%. When the thickness of the light-transmitting cavity 351 is greater than the first preset threshold and less than the second preset threshold, the cover assembly 300 is in the partial light-transmitting state, and the light transmittance of the cover assembly 300 is any value between 0% and 100%.

[0041] In practical applications, the values ​​of the first preset threshold and the second preset threshold may be set as needed, and the embodiments of the present application may not limit the specific values ​​of the first preset threshold and the second preset threshold.

[0042] In some optional embodiments of the present application, in the light-shielding state, such as Figure 5 As shown, the flexible membrane 370 is recessed toward the liquid storage chamber 361. In the light-transmitting state, as shown in FIG. Figure 6As shown, the flexible film 370 at least partially protrudes out of the liquid storage cavity 361. In this way, in the light-shielding state, the flexible film 370 is in a retracted shape and is recessed toward the liquid storage cavity 361, so that more light-absorbing liquid 340 is located in the light-transmitting cavity 351, and no light can pass through the first cover plate 310, and the light transmittance of the cover plate assembly 300 is 0. In the light-transmitting state, the flexible film 370 is in a convex and full shape, and the flexible film 370 at least partially protrudes out of the liquid storage cavity 361, so that the light-absorbing liquid 340 is completely squeezed into the liquid storage cavity 361, and all light can pass through the first cover plate 310, and the light transmittance of the cover plate assembly 300 is 100%.

[0043] Optionally, in the embodiments of the present application, Figure 2 and Figure 3 As shown, the camera module further includes at least one resetting elastic member 500, which is connected to at least one of the first cover plate 310 and the second cover plate 320 to reset the first cover plate 310 and the second cover plate 320 to the light shielding state. In this way, when the camera module is not working, the first cover plate 310 and the second cover plate 320 are spaced a certain distance from each other under the action of the resetting elastic member 500, and the light absorbing liquid 340 is filled between the first cover plate 310 and the second cover plate 320, so that the cover plate assembly 300 is kept in the light shielding state, which has a better effect of hiding the camera.

[0044] Specifically, one end of the reset elastic member 500 can be connected to the first cover plate 310, one end of the reset elastic member 500 can also be connected to the second cover plate 320, and the other end of the reset elastic member 500 can be connected to the electronic device, such as the back cover, to achieve reliable fixation of the reset elastic member 500, so as to facilitate its reset of the first cover plate 310. The number of the reset elastic members 500 can be set to 2, 3, 4, etc. The reset elastic members 500 can be set at the four corners of the outer periphery of the first cover plate 310, or at the symmetrical positions of the edge of the first cover plate 310. The specific number and setting positions of the reset elastic members 500 are not limited in the embodiment of the present application.

[0045] For example, in the embodiment of the present application, the resetting elastic member 500 includes at least one of a spring and a spring. The spring and the spring have good rigidity and elastic recovery, and can well reset the first cover plate 310 to the light shielding state, thereby achieving a good hidden camera effect.

[0046] Specifically, in the embodiment of the present application, a first groove 362 is provided in a portion of the first cover plate 310 located in the non-light-transmitting area 360 on one side close to the second cover plate 320, and a second groove 363 is provided in a portion of the second cover plate 320 located in the non-light-transmitting area 360 on one side close to the first cover plate 310, and the second groove 363 and the first groove 362 enclose a liquid storage cavity 361. In this way, sufficient accommodation space can be provided for the liquid storage cavity 361 to accommodate at least part of the light-absorbing liquid 340 in the liquid storage cavity 361, so as to facilitate the switchover of the cover plate assembly 300 between the light-shielding state and the light-transmitting state, as well as the partial light-transmitting state. There is no need to set up other separate liquid storage mechanisms, which simplifies the structure of the camera module.

[0047] Optionally, in the embodiment of the present application, the driving mechanism 400 includes a first magnetic member 410 and a second magnetic member 420 arranged at intervals, the first magnetic member 410 is connected to the side of the first cover plate 310 away from the second cover plate 320, the second magnetic member 420 drives the first magnetic member 410 to move by magnetic force, and the first magnetic member 410 drives the first cover plate 310 to approach or move away from the second cover plate 320. Or, the first magnetic member 410 is connected to the side of the second cover plate 320 away from the first cover plate 310, the second magnetic member 420 drives the first magnetic member 410 to move by magnetic force, and the first magnetic member 410 drives the second cover plate 320 to approach or move away from the first cover plate 310. In this way, the first cover plate 310 can approach or move away from the second cover plate 320 under magnetic drive, or the second cover plate 320 can approach or move away from the first cover plate 310 under magnetic drive, thereby changing the thickness of the cavity 330. The structure is simple, the cost is low, and it is easy to implement.

[0048] Specifically, in the embodiment of the present application, the magnetic pole of one end of the first magnetic member 410 close to the second magnetic pole is the first magnetic pole, and the end of the second magnetic member 420 close to the first magnetic member 410 is the second magnetic pole. When the first magnetic pole is the same as the second magnetic pole, the first magnetic member 410 can drive the first cover plate 310 to approach the second cover plate 320; when the first magnetic pole is opposite to the second magnetic pole, the first magnetic member 410 can drive the first cover plate 310 away from the second cover plate 320.

[0049] For example, in the embodiment of the present application, the first magnetic member 410 and the second magnetic member 420 may both be ferromagnetic members, or both be electromagnetic coils, or one of them may be a ferromagnetic member and the other may be an electromagnetic coil, and the embodiment of the present application may not limit this. The ferromagnetic member may include but is not limited to any one of a samarium cobalt magnet, a neodymium iron boron magnet, and an iron oxide magnet.

[0050] Wherein, when the first magnetic member 410 is a ferromagnetic member and the second magnetic member 420 is an electromagnetic coil, the electromagnetic coil is energized to generate magnetic force to drive the ferromagnetic member to move, and the ferromagnetic member drives the first cover plate 310 to approach or move away from the second cover plate 320. In this way, the magnetic force change of the electromagnetic coil can be controlled by controlling the current, which facilitates the driving control of the first cover plate 310 to approach or move away from the second cover plate 320, and the operation is simple, and it is easy to achieve precise control of the distance between the first cover plate 310 and the second cover plate 320.

[0051] In some optional embodiments of the present application, an iron core is provided inside the electromagnetic coil, so that the magnetic force of the electromagnetic coil can be further enhanced, the power consumption required by the electromagnetic coil can be reduced, and energy utilization can be saved.

[0052] In some optional embodiments of the present application, the driving mechanism 400 may also include at least one of an electrodeformable element, an artificial muscle, a motor, an electric motor, and a motor. For example, a voice coil motor (VCM), a shape memory alloy (SMA), etc., to provide a stable and reliable driving force for the first cover plate 310 to approach or move away from the second cover plate 320. There are many mechanisms that can achieve driving in the prior art, and the specific type of the driving mechanism 400 may not be limited in the embodiments of the present application.

[0053] Among them, the electrodeformable element and the artificial muscle can switch between the initial shape and the memory shape, thereby driving the first cover plate 310 to approach or move away from the second cover plate 320. Among them, the material of the electrodeformable element is an electro-type shape memory polymer. Specifically, the electro-type shape memory polymer can be a composite material of a thermo-type shape memory polymer material and a conductive material (such as conductive carbon black, metal powder and conductive polymer, etc.). Its memory mechanism is the same as that of the thermo-induced shape memory polymer. The composite material increases the temperature of the system through the heat generated by the electric current, causing the shape to recover, so it has both conductive properties and good shape memory function.

[0054] In summary, the camera module described in the embodiments of the present application may at least include the following advantages:

[0055] In an embodiment of the present application, the camera module includes a photosensitive chip, a lens assembly, a cover assembly and a driving mechanism arranged in sequence; the cover assembly includes a first cover and a second cover, the first cover and the second cover are arranged at a relative interval, the first cover is arranged close to the lens assembly, the first cover and the second cover are enclosed to form a cavity, and the cavity is filled with a light-absorbing liquid; the driving mechanism is connected to at least one of the first cover and the second cover, and the driving mechanism is used to adjust the distance between the first cover and the second cover, so as to adjust the transmittance of the cover assembly by changing the thickness of the light-absorbing liquid in the cavity. The first cover and the second cover are controlled by the driving mechanism to approach or move away from each other, change the thickness of the cavity, and thus change the thickness of the light-absorbing liquid in the cavity, so as to adjust the amount of light passing through the first cover, and adjust its transmittance. In addition, the gradual and continuous change of the thickness of the cavity can enable the cover assembly to achieve continuous adjustability of the transmittance, so that the camera module can meet the needs of various shooting scenes, such as long exposure, etc., and has a simple structure. Furthermore, when the cavity between the first cover plate and the second cover plate is thick, light cannot pass through the first cover plate and is in a light-shielding state, so that there is no significant color difference between the cover plate assembly and other parts of the camera module appearance, achieving the effect of a hidden camera. The color difference between the light hole of the lens assembly and other parts is avoided, and the overall appearance of the electronic device is improved.

[0056] An embodiment of the present application also provides an electronic device, which includes the camera module.

[0057] In the embodiment of the present application, the electronic device may include but is not limited to any one of a mobile phone, a tablet computer and a wearable device. The electronic device may also include a SLR camera, a mirrorless camera, a rangefinder camera, a twin-lens reflex camera, etc. The embodiment of the present application does not limit the specific type of the electronic device.

[0058] The electronic device described in the embodiments of the present application may at least have the following advantages:

[0059] In an embodiment of the present application, the electronic device includes the camera module, which includes a photosensitive chip, a lens assembly, a cover assembly and a driving mechanism arranged in sequence; the cover assembly includes a first cover and a second cover, the first cover and the second cover are arranged at a relative interval, the first cover is arranged close to the lens assembly, the first cover and the second cover are enclosed to form a cavity, and the cavity is filled with a light-absorbing liquid; the driving mechanism is connected to at least one of the first cover and the second cover, and the driving mechanism is used to adjust the distance between the first cover and the second cover, so as to adjust the light transmittance of the cover assembly by changing the thickness of the light-absorbing liquid in the cavity. The first cover and the second cover are controlled by the driving mechanism to approach or move away from each other, change the thickness of the cavity, and thus change the thickness of the light-absorbing liquid in the cavity, so as to adjust the amount of light passing through the first cover, and adjust its light transmittance. In addition, the gradual and continuous change of the thickness of the cavity can enable the cover assembly to achieve continuous adjustability of the light transmittance, so that the camera module can meet the needs of various shooting scenes, such as long exposure, etc., and has a simple structure. Furthermore, when the cavity between the first cover plate and the second cover plate is thick, light cannot pass through the first cover plate and is in a light-shielding state, so that there is no significant color difference between the cover plate assembly and other parts of the camera module appearance, achieving the effect of a hidden camera. The color difference between the light hole of the lens assembly and other parts is avoided, and the overall appearance of the electronic device is improved.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0061] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A camera module, characterized in that: The camera module includes a photosensitive chip, a lens assembly, a cover assembly and a driving mechanism which are arranged in sequence; The cover plate assembly comprises a first cover plate and a second cover plate, the first cover plate and the second cover plate are arranged with a relative spacing, the first cover plate is arranged close to the lens assembly, the first cover plate and the second cover plate are enclosed to form a cavity, and the cavity is filled with a light absorbing liquid; The driving mechanism is connected to at least one of the first cover plate and the second cover plate, and the driving mechanism is used to adjust the distance between the first cover plate and the second cover plate, so as to adjust the light transmittance of the cover plate assembly by changing the thickness of the light absorbing liquid in the cavity; The first cover plate and the second cover plate both include a light-transmitting area and a non-light-transmitting area arranged around the light-transmitting area, and the light-transmitting area is used for light to pass through; The light-transmitting areas of the first cover plate and the second cover plate enclose a light-transmitting cavity, and the non-light-transmitting areas of the first cover plate and the second cover plate enclose a liquid storage cavity. The liquid storage cavity is connected to the light-transmitting cavity, and the light-absorbing liquid is filled in the light-transmitting cavity and the liquid storage cavity.

2. The camera module according to claim 1, characterized in that: The cover plate assembly also includes a flexible film, which is connected to the periphery of the liquid storage cavity and is used to close the liquid storage cavity.

3. The camera module according to claim 2, characterized in that: The cover assembly includes a light-transmitting state and a light-shielding state; wherein, In the light-transmitting state, the first cover plate is close to the second cover plate, and the light-absorbing liquid is located in the liquid storage cavity; In the light-shielding state, the first cover plate is away from the second cover plate, and the light-absorbing liquid is at least partially located in the light-transmitting cavity.

4. The camera module according to claim 3, characterized in that: In the light-shielding state, the flexible film is recessed toward the liquid storage cavity, and in the light-transmitting state, the flexible film at least partially protrudes out of the liquid storage cavity.

5. The camera module according to claim 3, characterized in that: The camera module further includes at least one resetting elastic member, and the resetting elastic member is connected to at least one of the first cover plate and the second cover plate so as to reset the first cover plate and the second cover plate to the light shielding state.

6. The camera module according to claim 1, characterized in that: A first groove is provided on a portion of the first cover plate located in the non-light-transmitting area on one side close to the second cover plate, and a second groove is provided on a portion of the second cover plate located in the non-light-transmitting area on one side close to the first cover plate. The second groove and the first groove enclose the liquid storage cavity.

7. The camera module according to claim 1, characterized in that: The driving mechanism comprises a first magnetic member and a second magnetic member which are spaced apart from each other; The first magnetic member is connected to a side of the first cover plate away from the second cover plate, and the second magnetic member drives the first magnetic member to move by magnetic force, and the first magnetic member drives the first cover plate to approach or move away from the second cover plate.

8. The camera module according to claim 1, characterized in that: The driving mechanism comprises a first magnetic member and a second magnetic member which are spaced apart from each other; The first magnetic member is connected to a side of the second cover plate away from the first cover plate, and the second magnetic member drives the first magnetic member to move by magnetic force, and the first magnetic member drives the second cover plate to approach or move away from the first cover plate.

9. An electronic device, characterized in that: The electronic device comprises the camera module according to any one of claims 1 to 8.

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