Camera device and intelligent terminal

Abstract

The utility model provides a display device and an intelligent terminal, a camera device comprises a shell, an elastic structure, a bearing table, a piezoelectric driving part, a photosensitive chip and a lens, the elastic structure is connected between the bearing table and the shell, the photosensitive chip is connected to the bearing table, the piezoelectric driving part is connected to the elastic structure, and the piezoelectric driving part is connected to the shell. The lens is connected to the shell and is arranged corresponding to the photosensitive chip, and the piezoelectric driving part drives the bearing table to move through the elastic structure. According to the camera device, the size of the driving part can be reduced, and the overall structure integration degree is high.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a camera device and a smart terminal. Background Art

[0002] As the imaging quality requirements of mobile phone camera modules become higher and higher, the size and weight of lenses are getting larger and larger, and the driving force requirements for motors are also getting higher and higher. The motor plays a vital role in the focus and anti-shake of the lens.

[0003] During the process of conceiving and implementing this application, the inventors discovered at least the following problems: existing camera modules achieve anti-shake function through the cooperation of motors and elastic systems, but the elastic system inevitably tilts during movement. This is because the elastic system compresses and relaxes at the same time. In this case, the imaging effect will be deteriorated, and the use of motor anti-shake will lead to an increase in the overall size of the device. Moreover, in the current technology, there is no closed-loop feedback mechanism for the chip tilt angle, so targeted compensation cannot be performed.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0005] The purpose of this application is to provide a camera device that can reduce the volume of driving components and has a high degree of overall structural integration.

[0006] In order to solve the above technical problems, the present application provides a camera device, including a shell, an elastic structure, a supporting platform, a piezoelectric drive unit, a photosensitive chip and a lens, the elastic structure is connected between the supporting platform and the shell, the photosensitive chip is connected to the supporting platform, the piezoelectric drive unit is connected to the elastic structure, the lens is connected to the shell and is arranged corresponding to the photosensitive chip, and the piezoelectric drive unit drives the supporting platform to move through the elastic structure.

[0007] Optionally, the camera device includes at least one of the following:

[0008] The elastic structure includes a plurality of elastic members, one end of each elastic member is connected to the housing, and the other end of each elastic member is connected to the supporting platform;

[0009] Each of the elastic members is a special-shaped spring piece;

[0010] The piezoelectric driving unit includes a plurality of piezoelectric elements, and each of the piezoelectric elements is connected to each of the elastic elements respectively.

[0011] Optionally, each of the piezoelectric elements includes a first electrode, a piezoelectric sheet, and a second electrode stacked in sequence, and the second electrode is fixed on the elastic element.

[0012] Optionally, a connection frame is fixed to the inner wall of the shell, the connection frame is arranged around the circumference of the supporting platform, and each of the elastic members is connected between the connection frame and the supporting platform.

[0013] Optionally, a circuit structure is provided on the inner wall of the shell, each piezoelectric driving unit is electrically connected to the circuit structure, a conductive circuit is provided on the elastic member, one end of the conductive circuit is electrically connected to the circuit structure, and the other end of the conductive circuit is electrically connected to the photosensitive chip.

[0014] Optionally, the camera device further includes a base, the bottom of the shell is fixed on the base, and the supporting platform is arranged opposite to the base.

[0015] Optionally, the camera device also includes at least one electrostatic induction array, which is arranged on the base. An electrostatic ball is provided on the supporting platform, and the electrostatic ball is arranged corresponding to the electrostatic induction array. The electrostatic induction array includes multiple sensing points for sensing the position changes and pressure changes of the electrostatic ball.

[0016] Optionally, the camera device includes four electrostatic induction arrays, and four electrostatic balls are provided on the supporting platform, and the four electrostatic balls are respectively connected to four corners of the supporting platform.

[0017] Optionally, the camera device also includes a signal processor, which is electrically connected to each of the electrostatic induction arrays and the piezoelectric drive unit, and the signal processor controls the piezoelectric drive unit to compensate for the tilt of the support platform according to the tilt posture of the support platform detected by the electrostatic induction array.

[0018] The present application also relates to a smart terminal, comprising the above-mentioned camera device.

[0019] The camera device of the present application combines a piezoelectric drive unit and an elastic structure into one through piezoelectric drive, which can reduce the volume of the drive component. The camera device of the present application focuses by moving the photosensitive chip, which can reduce the mass of the drive component and has a high degree of overall structural integration.

[0020] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, which can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0022] Figure 1 A schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application;

[0023] Figure 2 A communication network system architecture diagram provided in an embodiment of the present application;

[0024] Figure 3 is a schematic diagram of the three-dimensional structure of the camera device of the present application;

[0025] Figure 4 yes Figure 3 The schematic diagram of the disassembled structure of the camera device shown;

[0026] Figure 5 It is a structural diagram of the elastic structure, bearing platform and connection frame of the present application;

[0027] Figure 6 is a partially enlarged schematic diagram of the piezoelectric drive unit of the present application;

[0028] Figure 7 It is a partial structural diagram of the elastic member and the conductive circuit of the present application;

[0029] Figure 8 It is a structural diagram of the base of this application.

[0030] The purpose of this application, its features, and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and the accompanying text are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of this application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0032] It should be noted that, in this document, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. Optionally, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined based on their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0033] It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the term "if," as used herein, may be interpreted as "upon," "when," or "in response to a determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprising" and "including" indicate the presence of the recited features, steps, operations, elements, components, items, types, and / or groups, but do not preclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or," "and / or," "including at least one of the following," etc., as used herein, may be interpreted as inclusive, meaning any one or any combination. For example, “comprising at least one of the following: A, B, C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”; and for another example, “A, B or C” or “A, B and / or C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”. An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some manner.

[0034] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are shown in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless clearly stated herein, the execution of these steps is not strictly limited in order, and they can be performed in other orders. Moreover, at least a portion of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0035] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0036] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0037] In the subsequent description, the use of suffixes such as "module", "component" or "unit" to represent elements is only for the purpose of facilitating the description of the present application and has no specific meaning. Therefore, "module", "component" or "unit" can be used interchangeably.

[0038] Smart terminals can be implemented in various forms. For example, the smart terminals described in this application may include smart terminals such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0039] The subsequent description will be made using a smart terminal as an example. It will be understood by those skilled in the art that, in addition to components specifically used for mobile purposes, the configuration according to the embodiments of the present application can also be applied to fixed-type terminals.

[0040] Figure 1 For a hardware structure diagram of a mobile terminal implementing each embodiment of the present application, please refer to Figure 1, which is a schematic diagram of the hardware structure of a smart terminal for implementing various embodiments of the present application. The smart terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A / V (audio / video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art will understand that Figure 1 The structure of the smart terminal shown in the figure does not constitute a limitation on the smart terminal. The smart terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0041] The following combination Figure 1 A detailed introduction to each component of the smart terminal:

[0042] The RF unit 101 can be used to send and receive information or receive signals during calls. Specifically, it receives downlink information from the base station and transmits it to the processor 110 for processing. It also transmits uplink data to the base station. Typically, the RF unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and more. Furthermore, the RF unit 101 can communicate with the network and other devices via wireless communication. The above-mentioned wireless communications can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution) and 5G, etc.

[0043] WiFi is a short-range wireless transmission technology. Smart terminals can help users send and receive emails, browse web pages, and access streaming media through WiFi module 102. It provides users with wireless broadband Internet access. Figure 1 The WiFi module 102 is shown, but it is understandable that it is not an essential component of the smart terminal and can be omitted as needed without changing the essence of the invention.

[0044] The audio output unit 103 can convert audio data received by the RF unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output it as sound when the smart terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Furthermore, the audio output unit 103 can also provide audio output related to a specific function performed by the smart terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, or the like.

[0045] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042. The GPU 1041 processes image data of still images or videos captured by an image capture device (e.g., a camera) in video capture mode or image capture mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the GPU 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the RF unit 101 or the WiFi module 102. The microphone 1042 may receive sound (audio data) in operating modes such as a phone call mode, a recording mode, and a voice recognition mode, and may process such sound into audio data. In the phone call mode, the processed audio (voice) data may be converted into a format that can be transmitted to a mobile communication base station via the RF unit 101. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to eliminate (or suppress) noise or interference generated during the reception and transmission of audio signals.

[0046] The smart terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the panel 1061 and / or the backlight when the smart terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that recognize the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that can be configured on the mobile phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be described in detail here.

[0047] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0048] The user input unit 107 can be used to receive input digital or character information, and to generate key signal input related to the user settings and function control of the smart terminal. Optionally, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect user touch operations on or near it (such as operations performed by the user using any suitable object or accessory such as a finger, stylus, etc. on or near the touch panel 1071) and drive the corresponding connection device according to a pre-set program. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the user's touch direction and detects the signal caused by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device and converts it into touch point coordinates, which are then sent to the processor 110. It can also receive commands sent by the processor 110 and execute them. In addition, the touch panel 1071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may further include other input devices 1072. Optionally, the other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power keys, etc.), a trackball, a mouse, a joystick, etc., and the specifics are not limited here.

[0049] Optionally, the touch panel 1071 may cover the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of touch event. The processor 110 then provides a corresponding visual output on the panel 1061 according to the type of touch event. Figure 1 In the figure, the touch panel 1071 and the display panel 1061 are two independent components to realize the input and output functions of the smart terminal. However, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to realize the input and output functions of the smart terminal, which is not limited here.

[0050] The interface unit 108 serves as an interface through which at least one external device can be connected to the smart terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from the external device and transmit the received input to one or more components within the smart terminal 100, or may be used to transmit data between the smart terminal 100 and the external device.

[0051] Memory 109 can be used to store software programs and various data. Memory 109 may primarily include a program storage area and a data storage area. Optionally, the program storage area may store an operating system and at least one application required for a function (such as a sound playback function or an image playback function); the data storage area may store data generated based on the use of the mobile phone (such as audio data, a phone book, etc.). Furthermore, memory 109 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0052] Processor 110 is the control center of the smart terminal, connecting all components of the smart terminal using various interfaces and circuits. By running or executing software programs and / or modules stored in memory 109 and accessing data stored in memory 109, it executes various functions of the smart terminal and processes data, thereby providing overall monitoring of the smart terminal. Processor 110 may include one or more processing units; preferably, processor 110 may integrate an application processor and a modem processor. Optionally, the application processor primarily processes the operating system, user interface, and application programs, while the modem processor primarily handles wireless communications. It is understood that the modem processor may not be integrated into processor 110.

[0053] The smart terminal 100 may also include a power supply 111 (such as a battery) to supply power to each component. Preferably, the power supply 111 may be logically connected to the processor 110 through a power management system, thereby managing charging, discharging, and power consumption through the power management system.

[0054] although Figure 1 Not shown, the smart terminal 100 may further include a Bluetooth module, etc., which will not be described in detail here.

[0055] To facilitate understanding of the embodiments of the present application, the communication network system on which the smart terminal of the present application is based is described below.

[0056] See also Figure 2 , Figure 2 A communication network system architecture diagram is provided for an embodiment of the present application. The communication network system is an LTE system of universal mobile communication technology. The LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203 and an operator's IP service 204, which are connected in sequence.

[0057] Optionally, UE201 may be the above-mentioned terminal 100, which will not be described in detail here.

[0058] E-UTRAN 202 includes eNodeB 2021 and other eNodeBs 2022 . Optionally, eNodeB 2021 may be connected to other eNodeBs 2022 via a backhaul (eg, an X2 interface). eNodeB 2021 is connected to EPC 203 , and eNodeB 2021 may provide access from UE 201 to EPC 203 .

[0059] EPC 203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving Gate Way) 2034, a PGW (PDN Gate Way) 2035, and a PCRF (Policy and Charging Rules Function) 2036. Optionally, MME 2031 is a control node that processes signaling between UE 201 and EPC 203, providing bearer and connection management. HSS 2032 provides registers for managing functions such as the Home Location Register (not shown) and stores user-specific information such as service features and data rates. All user data can be sent through SGW2034, PGW2035 can provide IP address allocation and other functions for UE 201, PCRF2036 is the policy and charging control policy decision point for service data flow and IP bearer resources, and it selects and provides available policy and charging control decisions for the policy and charging execution function unit (not shown in the figure).

[0060] The IP service 204 may include the Internet, an intranet, an IMS (IP Multimedia Subsystem), or other IP services.

[0061] Although the above introduction takes the LTE system as an example, those skilled in the art should know that this application is not only applicable to the LTE system, but can also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G and future new network systems (such as 6G), etc., which are not limited here.

[0062] Based on the above-mentioned smart terminal hardware structure and communication network system, various embodiments of the present application are proposed.

[0063] Figure 3 is a schematic diagram of the three-dimensional structure of the camera device of this application, Figure 4 yes Figure 3 The schematic diagram of the disassembled structure of the camera device shown in FIG. Figure 3 and Figure 4As shown, the camera device includes a shell 12, an elastic structure 13, a supporting platform 14, a piezoelectric driving unit 15, a photosensitive chip 16 and a lens 17. The elastic structure 13 is connected between the supporting platform 14 and the shell 12, the photosensitive chip 16 is connected to the supporting platform 14, the piezoelectric driving unit 15 is connected to the elastic structure 13, and the lens 17 is connected to the shell 12 and is arranged corresponding to the photosensitive chip 16. The piezoelectric driving unit 15 drives the supporting platform 14 to move through the elastic structure 13.

[0064] The camera device of the present application combines the piezoelectric drive unit 15 and the elastic structure 13 into one by piezoelectric drive, which can reduce the volume of the drive components. The camera device of the present application focuses by moving the photosensitive chip 16, which can reduce the mass of the drive components and improve the overall structural integration.

[0065] Optionally, Figure 5 This is a structural diagram of the elastic structure, supporting platform and connecting frame of the present application, such as Figure 4 and Figure 5 As shown, the elastic structure 13 includes a plurality of elastic members 131, one end of each elastic member 131 is connected to the housing 12, and the other end of each elastic member 131 is connected to the support platform 14. In this embodiment, the plurality of elastic members 131 are arranged around the circumference of the support platform 14 at intervals.

[0066] Optionally, each elastic member 131 is a special-shaped spring piece. In this embodiment, each elastic member 131 is Z-shaped or S-shaped, and can be freely designed according to actual needs.

[0067] Optionally, Figure 6 This is a partially enlarged schematic diagram of the piezoelectric drive unit of the present application, such as Figure 6 As shown, the piezoelectric drive unit 15 includes a plurality of piezoelectric elements 151, each of which is connected to each elastic element 131. When each piezoelectric element 151 is energized, each piezoelectric element 151 drives each elastic element 131 to undergo elastic deformation, thereby causing the support platform 14 and the photosensitive chip 16 to move up and down, thereby completing the focusing function.

[0068] Alternatively, as Figure 6 As shown, each piezoelectric element 151 includes a first electrode 1511, a piezoelectric sheet 1512, and a second electrode 1513 stacked in sequence, with the second electrode 1513 fixed to the elastic element 131. In this embodiment, the first electrode 1511, the piezoelectric sheet 1512, and the second electrode 1513 are all sheet-shaped; when the first electrode 1511 and the second electrode 1513 are energized, the piezoelectric sheet 1512 bends, thereby causing the elastic element 131 to deform upward or downward, thereby driving the support platform 14 and the photosensitive chip 16 to focus.

[0069] Alternatively, as Figure 4 and Figure 5As shown, a connection frame 121 is fixed to the inner wall of the housing 12 . The connection frame 121 is arranged around the circumference of the supporting platform 14 . Each elastic member 131 is connected between the connection frame 121 and the supporting platform 14 .

[0070] Optionally, Figure 7 This is a partial structural diagram of the elastic member and the conductive circuit of the present application, such as Figure 7 As shown, the inner wall of the housing 12 is provided with a circuit structure (not shown), and each piezoelectric drive unit 15 is electrically connected to the circuit structure. A conductive circuit 132 is provided on the elastic member 131. One end of the conductive circuit 132 is electrically connected to the circuit structure, and the other end of the conductive circuit 132 is electrically connected to the photosensitive chip 16. In this embodiment, the photosensitive chip 16 converts the optical signal into an electrical signal, which is transmitted to the circuit structure via the conductive circuit 132 and finally transmitted out of the housing.

[0071] Optionally, Figure 8 It is a structural diagram of the base of this application, such as Figure 5 and Figure 8 As shown, the camera device also includes a base 18, to which the bottom of the housing 12 is fixed, and a support platform 14 is disposed opposite the base 18. In this embodiment, the base 18 and the housing 12 serve as stators, and the lens 17 is fixed to the housing 1; the elastic structure 13, support platform 14, and photosensitive chip 16 serve as movers, which are driven by the piezoelectric drive unit 15 to move up and down.

[0072] Alternatively, as Figure 4 and Figure 8 As shown, the camera device also includes at least one electrostatic induction array 19, which is disposed on the base 18. An electrostatic ball 141 is disposed on the support platform 14. The electrostatic ball 141 is disposed corresponding to the electrostatic induction array 19. The electrostatic induction array 19 includes multiple sensing points for sensing position changes and pressure changes of the electrostatic ball 141. When the electrostatic ball 141 moves horizontally with the support platform 14, the sensing position of each sensing point in the electrostatic induction array 19 will change accordingly, thereby enabling real-time detection of the position of the electrostatic ball 141. When the electrostatic ball 141 changes position upward or downward, the voltage sensed by each sensing point will change, thereby enabling real-time detection of the height of the electrostatic ball 141.

[0073] Alternatively, as Figure 8 As shown, the camera device includes four electrostatic induction arrays 19, and four electrostatic balls 141 are provided on the carrier 14. The four electrostatic balls 141 are respectively connected to the four corners of the carrier 14. In this embodiment, the carrier 14 is a rectangular plate, and the photosensitive chip 16 is fixed to the surface of the carrier 14.

[0074] The electrostatic sensing arrays 19 of the present application cooperate with each other to detect the three-dimensional position of the electrostatic ball 141 in real time. By measuring the real-time position of the four electrostatic balls 141, the plane of the entire photosensitive chip 16 can be depicted, thereby obtaining the tilt angle change of the entire photosensitive chip 16, and then making targeted compensation, which is conducive to improving the final imaging quality and improving user experience.

[0075] Optionally, the camera device also includes a signal processor (not shown), which is electrically connected to each electrostatic induction array 19 and the piezoelectric drive unit 15 respectively. The signal processor controls the piezoelectric drive unit 15 to compensate for the tilt of the support platform 14 according to the tilt posture of the support platform 14 detected by the electrostatic induction array 19.

[0076] The camera device of the present application provides a detailed driving structure scheme of the photosensitive chip 16 in the focusing direction, and by introducing the electrostatic induction array 19 and the three-point plane determination method, a complete closed-loop measurement scheme of the photosensitive chip 16 in the driving axis and tilt angle is realized, thereby realizing real-time compensation for the tilt of the photosensitive chip 16 and improving the final imaging quality.

[0077] The present application also relates to a smart terminal, comprising the above-mentioned display device.

[0078] Please refer to the above for the structure and functions of the smart terminal, which will not be repeated here.

[0079] It is understood that the above scenarios are merely examples and do not limit the application scenarios of the technical solutions provided in the embodiments of this application. The technical solutions of this application can also be applied to other scenarios. For example, those skilled in the art will appreciate that with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application will also be applicable to similar technical problems.

[0080] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0081] The steps in the method of the embodiment of the present application can be adjusted in order, combined and deleted according to actual needs.

[0082] The units in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0083] In this application, the same or similar terminology, technical solutions and / or application scenario descriptions are generally only described in detail the first time they appear. When they appear again later, they are generally not repeated for the sake of brevity. When understanding the technical solutions and other contents of this application, for the same or similar terminology, technical solutions and / or application scenario descriptions that are not described in detail later, you can refer to the previous relevant detailed descriptions.

[0084] In this application, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0085] The various technical features of the technical solution of this application can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0086] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as mentioned above, and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, controlled terminal, or network device, etc.) to execute the method of each embodiment of the present application.

[0087] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium can be a magnetic medium (e.g., a floppy disk, a storage disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state storage disk Solid State Disk (SSD)).

[0088] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A camera device, characterized in that: It includes a shell, an elastic structure, a supporting platform, a piezoelectric drive unit, a photosensitive chip and a lens. The elastic structure is connected between the supporting platform and the shell, the photosensitive chip is connected to the supporting platform, the piezoelectric drive unit is connected to the elastic structure, the lens is connected to the shell and is arranged corresponding to the photosensitive chip, and the piezoelectric drive unit drives the supporting platform to move through the elastic structure.

2. The imaging device according to claim 1, wherein Include at least one of the following: The elastic structure includes at least one elastic member, one end of each elastic member is connected to the housing, and the other end of each elastic member is connected to the supporting platform; Each of the elastic members is a special-shaped spring piece; The piezoelectric driving unit includes at least one piezoelectric element, and each of the piezoelectric elements is connected to each of the elastic elements respectively.

3. The imaging device according to claim 2, wherein: Each of the piezoelectric elements includes a first electrode, a piezoelectric sheet, and a second electrode stacked in sequence, and the second electrode is fixed on the elastic element.

4. The imaging device according to claim 2, wherein: A connecting frame is fixed to the inner wall of the shell. The connecting frame is arranged around the circumference of the bearing platform. Each of the elastic members is connected between the connecting frame and the bearing platform.

5. The imaging device according to claim 2, wherein: A circuit structure is provided on the inner wall of the shell, and each piezoelectric driving part is electrically connected to the circuit structure. A conductive circuit is provided on the elastic member, one end of the conductive circuit is electrically connected to the circuit structure, and the other end of the conductive circuit is electrically connected to the photosensitive chip.

6. The imaging device according to claim 2, wherein: The camera device further includes a base, the bottom of the shell is fixed on the base, and the supporting platform is arranged opposite to the base.

7. The imaging device according to claim 6, wherein The camera device also includes at least one electrostatic induction array, which is arranged on the base. An electrostatic ball is provided on the supporting platform, and the electrostatic ball is arranged corresponding to the electrostatic induction array. The electrostatic induction array includes at least one sensing point for sensing the position change and pressure change of the electrostatic ball.

8. The imaging device according to claim 7, wherein: The camera device includes four electrostatic induction arrays, and four electrostatic balls are provided on the supporting platform. The four electrostatic balls are respectively connected to the four corners of the supporting platform.

9. The imaging device according to claim 8, wherein The camera device also includes a signal processor, which is electrically connected to each of the electrostatic induction arrays and the piezoelectric drive unit. The signal processor controls the piezoelectric drive unit to compensate for the tilt of the support platform based on the tilt posture of the support platform detected by the electrostatic induction array.

10. An intelligent terminal, characterized in that: The imaging device comprises the imaging device according to any one of claims 1 to 9.

Images