A camera module and an electronic device

Abstract

The present application discloses a camera module and an electronic device, wherein the camera module comprises: a circuit substrate, a photosensitive element, a filter, a lens and a light-emitting element; the photosensitive element, the filter and the lens are fixed in sequence on one side of the circuit substrate in a direction away from the circuit substrate; wherein the light-emitting element is fixed in the internal space of the camera module, and the light emitted by the light-emitting element enters the filter from the side of the filter, is reflected inside the filter, is emitted from the central area of the filter, and is then emitted to the outside of the camera module through the lens. The module and device provided in the present application are used to solve the technical problem in the prior art that functional requirements such as breathing lights and screen-to-body ratio requirements cannot be taken into account at the same time. The technical effect of taking into account both functional requirements and screen-to-body ratio requirements is achieved.

Description

Technical Field

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

[0002] As competition in the smartphone market intensifies, manufacturers have higher and higher design requirements for mobile phone products in order to meet the growing needs of users. One of the important design requirements is full screen.

[0003] In order to follow the development trend of full-screen phones, it is necessary to reduce the number of transparent holes on the front of the phone. The current solution is to remove the front breathing light and other designs to ensure the overall screen-to-body ratio. However, this solution comes at the expense of functionality. Although it improves the screen-to-body ratio, it affects the user experience.

[0004] It can be seen that there are currently technical problems that functional requirements such as breathing lights and screen-to-body ratio requirements cannot be taken into account at the same time.

[0005] Application Content

[0006] In view of the above problems, the present application is proposed to provide a camera module and electronic device that overcome the above problems or at least partially solve the above problems.

[0007] In a first aspect, the present application provides a camera module, comprising:

[0008] Circuit substrate, photosensitive element, filter, lens and light-emitting element;

[0009] The photosensitive element, the filter and the lens are fixed in sequence on one side of the circuit substrate in a direction away from the circuit substrate;

[0010] Among them, the light emitting element is fixed in the internal space of the camera module, and the light emitted by the light emitting element enters the filter from the side of the filter, is reflected inside the filter, and then emitted from the central area of the filter, and then emitted to the outside of the camera module through the lens.

[0011] Optionally, edge areas of the upper and lower surfaces of the filter are coated with a light blocking layer, wherein light emitted by the light-emitting element enters the filter from the side of the filter, is reflected by the light blocking layer, and is emitted from the central area of the filter.

[0012] Optionally, the camera module further includes: a bracket, the bracket is fixed on the circuit substrate, and the filter and the lens are fixed by the bracket; the light-emitting element is located in a space enclosed by the bracket, the filter and the circuit substrate.

[0013] Optionally, the camera module further includes: a reflection structure fixed inside the bracket; wherein, the light-emitting element is fixed on the circuit board, the light-emitting surface of the light-emitting element faces the reflection structure, and the reflection structure reflects the light emitted by the light-emitting element into the side of the filter.

[0014] Optionally, the light-emitting element is fixed inside the bracket, and the light-emitting surface of the light-emitting element faces the side of the filter.

[0015] Optionally, the camera module further includes: a light guide structure fixed inside the bracket around the light-emitting element, the inner side surface of the light guide structure is a mirror surface, and the light emitted by the light-emitting element is reflected and guided by the mirror surface and enters the filter from the side of the filter.

[0016] Optionally, the camera module further includes: a three-dimensional circuit prepared by laser direct structuring technology on the bracket, the three-dimensional circuit connects the light-emitting element and the circuit board, and realizes the electrical signal connection between the light-emitting element and the circuit board.

[0017] Optionally, when the photosensitive element is in the photosensitive state, the light-emitting element is in the non-light-emitting state; when the light-emitting element is in the light-emitting state, the photosensitive element is in the non-photosensitive state.

[0018] In a second aspect, the present application further provides an electronic device, and the electronic device includes the camera module according to any one of the first aspect.

[0019] Optionally, the light-emitting element is a light source for realizing the breathing lamp function.

[0020] The technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:

[0021] The camera module and the electronic device provided in the embodiments of the present application fix the light-emitting element inside the camera module, and share the filter and the lens of the camera module as the light-emitting path of the light-emitting element. Without increasing the size of the module, the functions of imaging and lighting can be realized at the same time. And because the light also exits from the lens, for the electronic device equipped with this module, only one light-transmitting hole needs to be set to meet the requirements of imaging and lighting at the same time. Further, the present application arranges the light of the light-emitting element to enter from the side of the filter and then scatter from the front, which can ensure that the sensing element is directly opposite the center of the lens to obtain high-quality imaging quality, and at the same time take into account the light emission amount of the light-emitting element and the uniformity of the light emission angle.

[0022] The above description is only an overview of the technical solution of the present application. In order to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specific embodiments of the present application are given. Description of the Drawings

[0023] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to denote the same components. In the drawings:

[0024] Figure 1 is the structure of the camera module in the embodiment of the present application Figure 1 ;

[0025] Figure 2 is the structure of the camera module in the embodiment of the present application Figure 2 ;

[0026] Figure 3 is the structure of the camera module in the embodiment of the present application Figure 3 ;

[0027] Figure 4 is the structural diagram of the filter in the embodiment of the present application;

[0028] Figure 5 is the schematic diagram of the light-emitting element and the light guide structure in the embodiment of the present application;

[0029] Figure 6 is the structural diagram of the electronic device in the embodiment of the present application. Detailed Embodiments

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0031] Embodiment 1

[0032] In this embodiment, a camera module is provided. As shown in Figure 1 and Figure 2 , it includes:

[0033] a circuit board 1, a photosensitive element 2, a filter 3, a lens 4, and a light-emitting element 5;

[0034] On one side of the circuit board 1, a photosensitive element 2, a filter 3 and a lens 4 are sequentially fixed in a direction away from the circuit board 1;

[0035] Among them, the light-emitting element 5 is fixed in the internal space of the camera module. The light emitted by the light-emitting element 5 enters the filter 3 from the side of the filter 3, is reflected inside the filter 3 and then exits from the central area of the filter 3, and is then emitted outside the camera module through the lens 4.

[0036] It should be noted that the camera module can be installed in electronic devices such as mobile phones, tablet computers, detectors or smart watches, etc. The fixing methods between the components of the camera module can be bonding, clamping or screw fixing, etc. Among them, the photosensitive element 2 can be a photosensitive chip, and the light-emitting element 5 can be a light-emitting element such as an LED or an optocoupler, etc. There are no restrictions here and they will not be listed one by one.

[0037] Next, the components of the camera module provided in this embodiment and their connection methods will be introduced in detail respectively:

[0038] First, introduce the components for the camera function.

[0039] The components for the camera function in the camera module provided in this embodiment include a circuit board 1, a photosensitive element 2, a filter 3 and a lens 4.

[0040] The photosensitive element 2 is fixed on the circuit board 1. Specifically, it can be fixed by glue bonding or by a snap structure. The photosensitive element 2 is electrically connected to the circuit board 1 so that the electronic device equipped with this camera module can control the function of the photosensitive element 2 to be turned on, adjusted and turned off through the circuit board 1. The specific electrical connection method can be bonding connection such as a gold wire 11.

[0041] As Figure 1 and 2 shown, the camera module can also include a bracket 6. The bracket 6 is fixed on the circuit board 1. Specifically, it can be fixed by glue bonding or by a snap structure. The filter 3 and the lens 4 are fixed on the bracket 6 to achieve relative fixation on one side of the circuit board 1. Specifically, the filter 3 is bonded or clamped and fixed on the bracket 6, facing the front of the photosensitive element 2 and spaced a certain distance from the photosensitive element 2. The lens 4 is fixed outside the filter 3 and spaced a certain distance from the filter 3. To ensure the imaging effect, the center lines of the photosensitive element 2, the filter 3 and the lens 4 can be set to coincide.

[0042] Preferably, the lens 4 and the bracket 6 can be fixed by threads so that the lens 4 can be rotated and adjusted to the optimal height, and then the lens 4 is fixed on the top of the bracket 6 with glue.

[0043] Of course, in the specific implementation process, it is also possible to Figure 3 As shown in Figure 3 , the bracket 6 is omitted to reduce the assembly steps. A support structure 41 is designed at the edge of the lens 4. The lens 4 is directly attached or clamped and fixed to the circuit board 1 through the support structure 41. The filter 3 is fixed on the support structure 41 of the lens 4, and is spaced from the central main body area of the lens 4 by a certain space.

[0044] Next, the components for the light-emitting function are introduced.

[0045] As Figure 1 and 2 As shown in 2 , the light-emitting element 5 is located in the internal space of the imaging module to reduce the module size and share the imaging optical path. Preferably, in order to prevent the light-emitting element from blocking the light collected by the lens and affecting the imaging effect, the light-emitting element 5 can be arranged in the space surrounded by the bracket 6 (if there is no bracket, it is the support structure 41 of the lens 4), the filter 3 and the circuit board 1, and the light-emitting element 5 is arranged outside the optical path of the photosensitive element 2 receiving external light.

[0046] As Figure 4 As shown in Figure 4 , light-blocking layers 31 are coated on the edge regions of the upper and lower surfaces of the filter 3 to prevent stray light interference during imaging of the photosensitive element 2. The light-blocking layer 31 can be a black ink layer or a metal layer, etc. The non-light-blocking layer region at the center of the filter 3 can be determined according to the size of the photosensitive region of the photosensitive element 2, and is usually about 0.05 mm smaller than the size of the photosensitive region of the photosensitive element 2 on each side. There is no light-blocking layer coated at the side 32 of the filter 3. Therefore, in this application, the light emitted by the light-emitting element 5 enters the filter 3 from the side 32 of the filter 3, is reflected by the light-blocking layer 31 inside the filter 3, and then exits from the non-light-blocking layer region at the center of the filter 3, and is then emitted out of the imaging module through the lens 4.

[0047] In the specific implementation process, it can be set that the light emitted by the light-emitting element 5 enters the filter 3 after reflection, or it can be set that the light emitted by the light-emitting element 5 directly enters the filter 3. The following are the explanations respectively:

[0048] First, a reflection structure is set.

[0049] As Figure 1 As shown in Figure 1 , the light-emitting element 5 is fixed on the circuit board 1 in the area outside the photosensitive element 2, and can be specifically fixed by fitting or clamping. The light-emitting element 5 is electrically connected to the circuit board 1, and can be specifically realized by fitting with a conductive material or by bonding, which is not limited here.

[0050] The reflection structure 7 can be a prism, a metal sheet, etc. The reflection structure 7 is installed inside the module, specifically on the inner side of the bracket 6 (if there is no bracket, it is on the inner side of the support structure 41 of the lens 4). The light-emitting surface of the light-emitting element 5 faces the reflection structure 7, and the installation position and angle of the reflection structure 7 need to meet the requirement that the light emitted by the light-emitting element 5 can be reflected into the side of the filter 3.

[0051] For example, as Figure 1 shown, the reflection structure 7 is arranged in the area opposite to the side of the filter 3 and is located above the light-emitting element 5. When the light-emitting element 5 emits light, the light is emitted to the reflection surface of the reflection structure 7 as shown by the arrow in the figure, and then reflected to the side of the filter 3 and enters the filter 3. Inside the filter 3, after being reflected by the light-blocking layer 31, it exits from the area without the light-blocking layer at the center of the filter 3, and then is emitted out of the camera module through the lens 4, realizing functions such as breathing lights and reminder lights that require light emission.

[0052] By setting the reflection structure 7, the optical path of the light-emitting element 5 is changed, so that the light emitted by it can enter from the side of the filter 3, avoiding the problem that most of the light will be blocked by the bracket or the light-blocking layer of the filter when the light is directly emitted outward from the bottom surface of the filter 3, and only a very small part of the light can be emitted out of the camera module, and the emitted light has a very inclined angle and uneven distribution, affecting the normal use of various functions that require light emission.

[0053] Second, the light-emitting element 5 faces the side of the filter 3 directly.

[0054] As Figure 2 shown, the light-emitting element 5 is fixed to the inner side of the bracket 6 (if there is no bracket, it is on the inner side of the support structure 41 of the lens 4), and the light-emitting surface of the light-emitting element 5 faces the side of the filter 3 so that the light emitted by it can directly enter the filter 3 from the side of the filter 3.

[0055] In this case, since the light-emitting element 5 is not directly in contact with the circuit board, to achieve electrical signal connection, a three-dimensional circuit (LDS circuit) prepared by laser direct structuring technology can be set inside or on the surface of the bracket 6 (or the support structure 41). The light-emitting element 5 is attached to the three-dimensional circuit with a conductive material to achieve electrical signal connection, or the light-emitting element 5 is bonded to the three-dimensional circuit to achieve electrical signal connection. The three-dimensional circuit is connected to the circuit board 1 with a conductive material or by bonding to achieve the electrical signal connection between the light-emitting element 5 and the circuit board 1.

[0056] Preferably, a light guiding structure 8 can also be set to converge the light emitted by the light-emitting element 5. The light guiding structure 8 is fixed around the light-emitting element on the inner side of the bracket 6, and the inner side surface of the light guiding structure 8 is a mirror surface or a metal surface. The light emitted by the light-emitting element 5 is reflected and guided by the inner side surface of the light guiding structure 8 and then enters the filter 3 from the side of the filter 3.

[0057] For example, as Figure 2 and Figure 5 shown, Figure 5 is Figure 2 a sectional view of the module along the A-A direction in . The light-emitting element 5 is fixed on the inner wall of the bracket 6 opposite to the side of the filter 3. The light guide structure 8 is a light-blocking plate, which is fixed on the inner wall of the bracket 6 and cooperates with the inner wall of the bracket 6 to form a light channel with a mirror-like inner surface around the light-emitting element 5. The outlet of the light channel faces the side of the filter 3. When the light-emitting element 5 emits light, as shown by the arrow in the figure, the emitted light converges through the reflection of the inner wall of the light channel, and most of the light can enter the filter 3 from the side of the filter 3. After being reflected by the light-blocking layer 31 inside the filter 3, the light is emitted from the area without the light-blocking layer at the center of the filter 3, and then is emitted outside the camera module through the lens 4, realizing functions such as breathing lights and reminder lights that require light emission.

[0058] By arranging the light-emitting element 5 to face the side of the filter 3 directly and directly introducing the emitted light into the filter 3, the light loss caused by changing the light path of the light-emitting element 5 can be avoided. Further, setting the light guide structure 8 can more effectively ensure that most of the light emitted by the light-emitting element 5 can enter the filter 3, improving the light utilization rate. Moreover, it can also avoid problems such as most of the light being blocked by the bracket or the light-blocking layer of the filter when the light directly emits outward from the bottom of the filter 3, only a very small part of the light can be emitted outside the camera module, and the emitted light has a very inclined and uneven distribution angle, affecting the normal use of various functions that require light emission.

[0059] Of course, in the specific implementation process, the implementation method of the light emitted by the light-emitting element 5 entering the filter 3 from the side 32 of the filter 3 is not limited to the above two, and a light guide structure can also be set to guide the light to achieve this, which is not limited here and will not be listed one by one.

[0060] In the specific implementation process, in order to avoid the influence of the light-emitting element 5 on the shooting function when it emits light, it can be set that when the photosensitive element 2 is in the photosensitive state, the light-emitting element 5 is in the non-light-emitting state; when the light-emitting element 5 is in the light-emitting state, the photosensitive element 2 is in the non-photosensitive state. The specific state switching control can be realized by the main board or controller of the electronic device connected to the circuit board 1.

[0061] Based on the same application concept, the embodiment of the present application also provides an electronic device including the camera module in Embodiment 1, as detailed in Embodiment 2.

[0062] Embodiment 2

[0063] As Figure 6 shown, this embodiment provides an electronic device including the camera module 601 described in Embodiment 1.

[0064] In a specific implementation process, the electronic device can be a mobile phone, a tablet computer, a detector, a smart watch, etc., which is not limited herein and will not be listed one by one.

[0065] In a specific implementation process, the light-emitting element 5 in the electronic device can be a light source for implementing the breathing light function. By means of the camera module 601 provided in the first embodiment, which has both the light-emitting element 5 and the photosensitive element 2, the breathing light function or other light-emitting functions of the electronic device can share the same transparent hole 602 with the camera function. That is, only one transparent hole 602 needs to be provided on the display surface of the electronic device to serve as both the light collection hole for the camera function and the light emission hole for functions such as the breathing light. It can be seen that the present application can better balance the functional requirements such as the breathing light and the screen-to-body ratio requirements, and can effectively ensure the screen-to-body ratio without sacrificing the user's functional requirements and without additionally increasing the size of the camera module.

[0066] Since the electronic device introduced in the second embodiment of the present application is any device including the camera module in the first embodiment of the present application, based on the camera module introduced in the first embodiment of the present application, those skilled in the art can understand the specific structure and deformation of the device, so it will not be elaborated herein. Any device including the camera module in the first embodiment of the present application falls within the scope of protection of the present application.

[0067] The technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0068] In the camera module and the electronic device provided in the embodiments of the present application, the light-emitting element is fixed inside the camera module, and the filter and lens of the camera module are shared as the light emission optical path of the light-emitting element. Without increasing the size of the module, the camera and light-emitting functions can be realized simultaneously. And because the light is also emitted from the lens, the electronic device equipped with this module only needs to set one light-transmitting hole to meet the camera and light-emitting requirements at the same time. Further, the present application arranges for the light of the light-emitting element to enter from the side of the filter and then scatter from the front, which can balance the light emission amount and the uniformity of the light emission angle of the light-emitting element on the basis of ensuring that the sensing element is directly opposite the center of the lens to obtain high-quality imaging quality.

[0069] In addition, those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present application and forms different embodiments.

[0070] It should be noted that the above embodiments are illustrative of the present application rather than restrictive thereof, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present application can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In the unit claims listing several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words can be interpreted as names.

[0071] Although the preferred embodiments of the present application have been described, further changes and modifications can be made by those skilled in the art once they learn of the basic inventive concept. Therefore, the appended claims are intended to be construed to cover the preferred embodiments as well as all changes and modifications falling within the scope of the present application.

[0072] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. An imaging module, characterized in that, Comprising: A circuit board, a photosensitive element, a filter, a lens, and a light-emitting element; On one side of the circuit board, the photosensitive element, the filter, and the lens are sequentially fixed in a direction away from the circuit board; Wherein, the light-emitting element is fixed in the internal space of the imaging module, and the light emitted by the light-emitting element enters the filter from the side of the filter, is reflected inside the filter, and then exits from the central region of the filter, and is emitted outside the imaging module through the lens; A bracket, the bracket is fixed on the circuit board, and the filter and the lens are fixed by the bracket; The light-emitting element is located in the space surrounded by the bracket, the filter, and the circuit board; A reflection structure, the reflection structure is fixed inside the bracket; Wherein, the light-emitting element is fixed on the circuit board, the light-emitting surface of the light-emitting element faces the reflection structure, and the reflection structure reflects the light emitted by the light-emitting element into the side of the filter; Light-blocking layers are coated on the edge regions of the upper and lower surfaces of the filter. Wherein, the light emitted by the light-emitting element enters the filter from the side of the filter, and is reflected by the light-blocking layer and then exits from the central region of the filter.

2. The imaging module according to claim 1, characterized in that: The light-emitting element is fixed inside the bracket, and the light-emitting surface of the light-emitting element faces the side of the filter.

3. The camera module as shown in claim 2, characterized in that, Further comprising: A light guide structure, the light guide structure is fixed inside the bracket around the light-emitting element, the inner side surface of the light guide structure is a mirror surface, and the light emitted by the light-emitting element is reflected and guided by the mirror surface and then enters the filter from the side of the filter.

4. The camera module according to claim 2, wherein, Further comprising: A three-dimensional circuit prepared by laser direct structuring technology on the bracket, the three-dimensional circuit connects the light-emitting element and the circuit board to realize the electrical signal connection between the light-emitting element and the circuit board.

5. The imaging module according to claim 1, characterized in that: When the photosensitive element is in the photosensitive state, the light-emitting element is in the non-light-emitting state; When the light-emitting element is in the light-emitting state, the photosensitive element is in the non-photosensitive state.

6. An electronic device, characterized in that, Comprising the imaging module according to any one of claims 1-5.

7. The electronic device according to claim 6, wherein The light-emitting element is a light source for realizing the function of a breathing lamp.

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