Leakage-proof mobile phone camera module

Abstract

The utility model discloses a kind of anti-leakage light mobile phone camera module, it includes PCB board, base, photosensitive chip, optical filter and lens, base is set on PCB board, and the middle of base is provided with step;Photosensitive chip is set on PCB board and is located in base;Optical filter is set at step;Lens is set on base, and glue layer is set between base and lens, and the outer edge of lens, base outer edge and the outer edge of glue layer are provided with shading ink coating.Due to the outer edge of lens, base outer edge and the outer edge of glue layer are provided with shading ink coating, the path that peripheral stray light is transmitted into module interior from module non-light hole position is effectively blocked by shading ink coating, to prevent stray light from entering and cause light leakage, to ensure the performance of mobile phone camera module, improve the competitiveness of product.

Description

Technical Field

[0001] This utility model relates to the field of camera technology, and more specifically, to a mobile phone camera module that prevents light leakage. Background Technology

[0002] Currently, the main structures in the mobile phone camera module market are the focusing module structure and the AA module structure (Active Alignment). Due to the product structure, the AA module structure may be affected by stray light from the surrounding area that passes through the non-light-passing hole of the module and enters the module, resulting in stray light. This stray light will affect the optical performance of the mobile phone camera module, leading to a decrease in the performance of the mobile phone camera module and reducing the competitiveness of the product. Utility Model Content

[0003] The technical problem to be solved by this utility model is how to prevent stray light from being transmitted into the module from the non-light-transmitting hole position of the module, thereby preventing light leakage, ensuring the performance of the mobile phone camera module, and improving the competitiveness of the product.

[0004] The technical problem to be solved by this utility model is achieved through the following technical solution: To solve the above-mentioned technical problems, this utility model provides a light-leakage-proof mobile phone camera module, which includes a PCB board, a base, a photosensitive chip, a light filter, and a lens. The base is disposed on the PCB board, and a step is provided in the middle of the base. The photosensitive chip is disposed on the PCB board and located inside the base. The light filter is disposed at the step. The lens is disposed on the base, and an adhesive layer is provided between the base and the lens. A light-shielding ink coating is provided on the outer edge of the lens, the outer edge of the base, and the outer edge of the adhesive layer.

[0005] In a preferred embodiment of the light-leakage-proof mobile phone camera module provided by this utility model, the color of the light-shielding ink coating is black.

[0006] In a preferred embodiment of the light-leakage-proof mobile phone camera module provided by this utility model, the adhesive layer is AA glue.

[0007] In a preferred embodiment of the light-leakage-proof mobile phone camera module provided by this utility model, the adhesive layer is gray in color.

[0008] In a preferred embodiment of the light-leakage-proof mobile phone camera module provided by this utility model, the lower surface of the base is provided with a surrounding inner groove, the inner groove is provided with an adhesive layer, and the PCB board is bonded to the base through the adhesive layer.

[0009] As a preferred embodiment of the light-leakage-proof mobile phone camera module provided by this utility model, at least one exhaust groove is provided on the inner groove.

[0010] As a preferred embodiment of the light-leakage-proof mobile phone camera module provided by this utility model, the base includes four side walls that are connected end to end.

[0011] As a preferred embodiment of the light-leakage-proof mobile phone camera module provided by this utility model, each of the side walls is provided with three exhaust grooves.

[0012] In a preferred embodiment of the light-leakage-proof mobile phone camera module provided by this utility model, the width of the inner groove gradually decreases from the top to the bottom.

[0013] In a preferred embodiment of the light-leakage-proof mobile phone camera module provided by this utility model, the cross-sectional shape of the inner groove is an isosceles trapezoid.

[0014] This utility model has the following beneficial effects: Because the outer edges of the lens, the base, and the adhesive layer are coated with light-shielding ink, the path of stray light from the non-light-passing holes of the module is effectively blocked by the light-shielding ink coating, thus preventing stray light from entering and causing light leakage, thereby ensuring the performance of the mobile phone camera module and improving the competitiveness of the product. Attached Figure Description

[0015] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of a light-leakage-proof mobile phone camera module provided by this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of Example 2.

[0018] Figure 3 for Figure 2 A bottom view.

[0019] Explanation of icon numbers: PCB board 1; base 2; photosensitive chip 3; filter 4; lens 5; glue 6; light-shielding ink coating 7; inner groove 21; adhesive layer 8; venting groove 22; side wall 9. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] This utility model provides a light-leakage-proof mobile phone camera module, which includes a PCB board, a base, a photosensitive chip, a filter, and a lens. The base is disposed on the PCB board, and a step is provided in the middle of the base. The photosensitive chip is disposed on the PCB board and located inside the base. The filter is disposed at the step. The lens is disposed on the base, and an adhesive layer is provided between the base and the lens. A light-shielding ink coating is provided on the outer edge of the lens, the outer edge of the base, and the outer edge of the adhesive layer.

[0024] Because the outer edges of the lens, the base, and the adhesive layer are coated with light-shielding ink, the path of stray light from the non-light-passing holes of the module is effectively blocked by the light-shielding ink coating, thus preventing stray light from entering and causing light leakage, thereby ensuring the performance of the mobile phone camera module and improving the competitiveness of the product.

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] Example 1, please refer to Figure 1 This utility model provides a light-leakage-proof mobile phone camera module, comprising a PCB board 1, a base 2, a photosensitive chip 3, a light filter 4, and a lens 5. The base 2 is mounted on the PCB board 1, with a step in the middle. The photosensitive chip 3 is mounted on the PCB board 1 and located within the base 2. The light filter 4 is positioned at the step. The lens 5 is mounted on the base 2, and an adhesive layer 6 is provided between the base 2 and the lens 5. A light-shielding ink coating 7 is provided on the outer edges of the lens 5, the base 2, and the adhesive layer 6. Because the light-shielding ink coating 7 is provided on the outer edges of the lens 5, the base 2, and the adhesive layer 6, the path of stray light transmitted from the non-light-passing holes into the module is effectively blocked by the light-shielding ink coating 7, thus preventing stray light from entering and causing light leakage. This ensures the performance of the mobile phone camera module and improves the product's competitiveness.

[0027] Furthermore, the light-blocking ink coating 7 is black, and the black light-blocking ink coating 7 can better block stray light from passing through and improve the blocking efficiency. The adhesive layer 6 is AA glue, and the adhesive layer is gray.

[0028] Example 2, please refer to Figure 2 and Figure 3 As a further optimization of Embodiment 1, in this embodiment, the lower surface of the base 2 is provided with a surrounding inner groove 21, and the inner groove 21 is provided with an adhesive layer 8. The PCB board 1 is bonded to the base 2 through the adhesive layer 8. In this embodiment, the adhesive layer 8 is glue. When applying the glue, care should be taken not to exceed the lower surface of the base 2, and the glue should fill the inner groove 21. In this way, after the glue cures, it can ensure that the glue and the base 2 have sufficient bonding area, and will not generate a tensile force that deforms the PCB board 1. Since the inner groove 21 is coated with glue, and the glue will not overflow, the tensile force generated after curing is concentrated in the direction perpendicular to the PCB board 1, which will not cause the PCB board 1 to deform. This avoids the change in the flatness of the PCB board 1 with optical sensor caused by the diagonal tensile force generated after the glue shrinks, thereby avoiding the change in the position of the lens 5 and the optical sensor, preventing the clarity of the central area of ​​the image captured by the camera module from not being fixed in the clearest position, improving product yield, reducing product cost, and improving product competitiveness.

[0029] Furthermore, at least one venting groove 22 is provided on the inner groove 21. When the base 2 is pressed onto the adhesive, the air in the inner groove 21 can be expelled, allowing the adhesive to fill the space of the inner groove 21 smoothly and preventing the formation of air bubbles.

[0030] Furthermore, the base 2 includes four side walls 9 that are connected end to end, which are formed by connecting them in pairs.

[0031] Furthermore, each sidewall 9 is provided with three exhaust slots 22 to allow air to be discharged.

[0032] Furthermore, the width of the inner groove 21 gradually decreases from the top to the bottom. In this embodiment, the cross-sectional shape of the inner groove 21 is an isosceles trapezoid, so that the adhesive layer 8 can better contact the inner groove 21 and improve the adhesive strength.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A light-leakage-proof mobile phone camera module, characterized in that, It includes: PCB board; A base is mounted on the PCB board, and a step is provided in the middle of the base; A photosensitive chip is disposed on the PCB board and located within the base; A filter is disposed at the step; A lens is mounted on the base, and an adhesive layer is provided between the base and the lens. A light-shielding ink coating is provided on the outer edge of the lens, the outer edge of the base, and the outer edge of the adhesive layer.

2. The anti-light leakage mobile phone camera module according to claim 1, characterized in that, The color of the light-shielding ink coating is black.

3. The anti-light leakage mobile phone camera module according to claim 1, characterized in that, The adhesive layer is AA glue.

4. The anti-light leakage mobile phone camera module according to claim 1, characterized in that, The adhesive layer is gray in color.

5. The anti-light leakage mobile phone camera module according to claim 1, characterized in that, The lower surface of the base has a circumferential inner groove, and the inner groove is provided with an adhesive layer. The PCB board is bonded to the base through the adhesive layer.

6. The anti-light leakage mobile phone camera module according to claim 5, characterized in that, At least one exhaust groove is provided on the inner groove.

7. The anti-light leakage mobile phone camera module according to claim 6, characterized in that, The base includes four side walls that are joined end to end.

8. The anti-light leakage mobile phone camera module according to claim 7, characterized in that, Each of the sidewalls is provided with three exhaust slots.

9. The anti-light leakage mobile phone camera module according to claim 5, characterized in that, The width of the inner groove decreases from the top to the bottom.

10. The anti-light leakage mobile phone camera module according to claim 9, characterized in that, The cross-sectional shape of the inner groove is an isosceles trapezoid.

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