CN209821470U - Front shell device and mobile terminal - Google Patents

Abstract

The front shell device comprises a display module, a cover plate, a camera module and a sealing piece located between the top surface of the lens cone and the display module. The display module is provided with a light through hole. The apron sets up in one side of display module assembly and shelters from logical unthreaded hole. The camera module comprises a lens assembly, the lens assembly comprises a lens barrel and a first lens, the lens barrel is located on one side, away from the cover plate, of the display module, the lens barrel comprises a lens barrel top surface, the first lens is installed in the lens barrel and partially protrudes out of the lens barrel top surface, and the portion, protruding out of the lens barrel top surface, of the first lens extends into the light through hole. The sealing member surrounds the light passing hole. The part of protrusion in lens cone top surface stretches into in logical unthreaded hole, and the lens cone is located one side of keeping away from the apron of display module assembly to the size of logical unthreaded hole can be seted up less (the diameter of logical unthreaded hole can be less than the diameter of lens cone), and then can promote the screen of preceding shell device and account for than. The application also discloses a mobile terminal.

Description

Front shell device and mobile terminal

Technical Field

The present application relates to the field of optical imaging technology, and more particularly, to a front case device and a mobile terminal.

Background

With the continuous development of science and technology, mobile terminals are continuously developing towards intellectualization, and besides digital cameras, portable mobile terminals such as tablet computers and mobile phones are also equipped with camera modules with photographing and shooting functions so as to meet the requirements of users for photographing at any time.

The front shell device of the related art comprises a camera module and a display module, wherein a light through hole is formed in the display module, so that the camera module has a large incident angle, the phenomenon that light outside the front shell device is shielded by the display module and cannot enter the camera module is avoided, a lens barrel and a lens of the camera module all stretch into the light through hole formed in the display module, and therefore the screen of the front shell device is low in occupied ratio.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a front shell device and a mobile terminal.

The front shell device comprises a display module, a cover plate, a camera module and a sealing piece located between the top surface of the lens cone and the display module. The display module is provided with a light through hole. The cover plate is arranged on one side of the display module and shields the light through hole. The camera module comprises a lens component, the lens component comprises a lens barrel and a first lens, the lens barrel is located on one side, far away from the cover plate, of the display module, the lens barrel comprises a lens barrel top surface, the first lens is installed in the lens barrel and partially protrudes out of the lens barrel top surface, and the portion, protruding out of the lens barrel top surface, of the first lens extends into the light through hole. The sealing piece surrounds the light through hole.

In some embodiments, the object-side surface of the first lens includes a first region and a second region, the first region surrounds the second region, the second region protrudes from the first region, and the second region protrudes from the top surface of the lens barrel and extends into the light through hole; and a first protection structure is formed at the joint of the first area and the second area and is used for preventing light rays from being projected onto an image sensor of the camera module after passing through the joint.

In some embodiments, the sealing member completely covers the top surface of the lens barrel, and the sealing member blocks a portion of the first region.

In some embodiments, the first protective structure is part of the first lens, the first protective structure is located at the junction and smoothly connects the first zone and the second zone, the second zone is curved, and the radius of curvature of the second zone is less than the radius of curvature of the first protective structure.

In some embodiments, the first protection structure is a light-shielding plating layer, and the first protection structure covers at least a portion of the first region and a portion of the second region.

In some embodiments, the lens barrel includes an annular barrel sidewall and a limiting ring, the limiting ring protrudes from one end of the barrel sidewall in the optical axis direction, the barrel sidewall and the limiting ring together define an accommodating cavity, and the limiting ring defines an accommodating hole communicated with the accommodating cavity; the first lens comprises a lens side face, the lens side face is connected with and surrounds the first area, the first lens is installed in the accommodating hole, and the lens side face is combined with the inner wall of the limiting ring.

In some embodiments, an annular mounting groove is formed in the top surface of the lens barrel, and the mounting groove surrounds the accommodating hole and is communicated with the accommodating hole; the first protection structure is annular and is arranged in the mounting groove and covers the first area and part of the second area.

In some embodiments, the positioning groove is formed in the image side surface of the first lens, the positioning groove includes a bottom surface, an inner side surface and a connecting surface, the connecting surface surrounds the bottom surface, the inner side surface surrounds the connecting surface, the connecting surface connects the bottom surface and the inner side surface, a second protection structure is formed on the connecting surface and the inner side surface, and the second protection structure is used for preventing light from being projected onto the image sensor through the connecting surface and/or the inner side surface.

In some embodiments, the lens assembly further includes a second lens abutting against the first lens, an object-side surface of the second lens includes a third area, a fourth area, and a fifth area, the fourth area surrounds the fifth area, the third area surrounds the fourth area, the fourth area connects the third area and the fifth area, the fifth area protrudes toward the first lens relative to the third area, the third area interferes with an image-side surface of the first lens, the fourth area and the fifth area are both accommodated in the positioning groove, the fourth area interferes with the inner-side surface, and the fifth area interferes with the connecting surface; and a third protection structure is formed on the fourth area and the fifth area and is used for preventing light rays from being projected onto the image sensor after passing through the fourth area and/or the fifth area.

In some embodiments, the second protective structure is a frosted structure formed by the attachment surface and the inner side surface, and the third protective structure is a frosted structure formed by the fourth region and the fifth region.

In some embodiments, the second protective structure is a plating layer plated on the connection surface and the inner side surface, and the third protective structure is a plating layer plated on the fourth area and the fifth area.

In certain embodiments, the seal is spaced apart from the first protective structure.

The mobile terminal comprises a machine shell and a front shell device, wherein the machine shell is provided with a mounting groove; the front shell device is installed on the machine shell, and the camera module and the display module are contained in the installation groove.

In the mobile terminal and the front shell device, the first lens is arranged in the lens barrel and partially protrudes out of the top surface of the lens barrel, and when light (incident light) outside the lens component enters the lens barrel from the first lens, the light cannot be shielded by the lens barrel, so that the light (incident light) which can enter the lens component has a larger incident angle (a larger view field range); meanwhile, the part protruding out of the top surface of the lens cone extends into the light through hole, and the lens cone is positioned on one side of the display module far away from the cover plate, so that the size of the light through hole can be smaller (the diameter of the light through hole can be smaller than that of the lens cone), and the screen occupation ratio of the front shell device can be improved; further, preceding shell device is through setting up the sealing member between lens cone top surface and display module to can avoid preceding shell device outside dust and steam to enter into and lead to downthehole and the adhesion on first lens, and then can guarantee camera module's imaging quality.

Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a cross-sectional view of a front shell assembly according to certain embodiments of the present application.

Fig. 2 is a cross-sectional view of a lens assembly of some embodiments of the present application.

Fig. 3 is an enlarged schematic view at III of the lens assembly of fig. 2.

Fig. 4 is an enlarged schematic view of the lens assembly according to some embodiments of the present application at a position corresponding to position III in fig. 2.

Fig. 5 is a cross-sectional view of a lens assembly of some embodiments of the present application.

Fig. 6 is a schematic perspective view of a lens assembly according to some embodiments of the present disclosure.

Fig. 7 is a cross-sectional view of a lens assembly of some embodiments of the present application.

FIG. 8 is a cross-sectional view of a camera module according to some embodiments of the present application.

Fig. 9-11 are cross-sectional views of front shell assemblies according to certain embodiments of the present application.

Fig. 12 is a schematic structural diagram of a mobile terminal according to some embodiments of the present application.

Detailed Description

Embodiments of the present application will be further described below with reference to the accompanying drawings. The same or similar reference numbers in the drawings identify the same or similar elements or elements having the same or similar functionality throughout.

In addition, the embodiments of the present application described below in conjunction with the accompanying drawings are exemplary and are only for the purpose of explaining the embodiments of the present application, and are not to be construed as limiting the present application.

Referring to fig. 1, 2 and 8, a front housing device 300 according to an embodiment of the present disclosure includes a display module 61, a cover plate 62, a camera module 200, and a sealing member 63 located between a top surface 11 of a lens barrel and the display module 61. The display module 61 is provided with a light hole 611. The cover plate 62 is disposed on one side of the display module 61 and blocks the light passing hole 611. The camera module 200 includes a lens assembly 100. The lens assembly 100 includes a lens barrel 10 and a first lens 20, the lens barrel 10 is located on a side of the display module 61 away from the cover plate 62, the lens barrel 10 includes a barrel top surface 11, the first lens 20 is installed in the lens barrel 10 and partially protrudes from the barrel top surface 11, and a portion of the first lens 20 protruding from the barrel top surface 11 extends into the light passing hole 611. The sealing member 63 surrounds the light passing hole 611.

The sealing member 63 is used for sealing the gap between the lens barrel top surface 11 and the display module 61. The diameter of the light passing hole 611 may be smaller than that of the lens barrel 10. The part of the first lens 20 protruding from the top surface 11 of the lens barrel is a protruding part of the first lens 20, and the size of the light passing hole 611 is larger than the cross-sectional size of the protruding part of the first lens 20, so that the protruding part of the first lens 20 can extend into the light passing hole 611.

In the front shell device 300 of the present application, the first lens 20 is installed in the lens barrel 10 and partially protrudes from the top surface 11 of the lens barrel, when light (incident light) outside the lens assembly 100 enters the lens barrel 10 from the first lens 20, the light cannot be blocked by the lens barrel 10, so that the light (incident light) that can enter the lens assembly 100 has a larger incident angle (a larger field of view range), and only the smaller light through hole 611 is provided, so that the same amount of light entering as the existing front shell device with the larger light through hole can be obtained; meanwhile, the part protruding from the top surface 11 of the lens barrel extends into the light through hole 611, and the lens barrel 10 is located on the side of the display module 61 away from the cover plate 62, so that the size of the light through hole 611 can be smaller, and the screen occupation ratio of the front shell device 300 can be improved; further, the front shell device 300 is provided with the sealing member 63 between the lens barrel top surface 11 and the display module 61, so that dust and water vapor outside the front shell device 300 can be prevented from entering the light through hole 611 and adhering to the first lens 20, and the imaging quality of the camera module 200 can be ensured.

Referring to fig. 1, in some embodiments, the area of the sealing member 63 is larger than the area of the lens barrel top surface 11, and the sealing member 63 completely covers the lens barrel top surface 11. More specifically, the seal 63 also shields a portion of the first region 21. Thus, the sealing member 63 can seal the gap between the lens barrel top surface 11 and the display module 61 well.

With continued reference to fig. 1, in some embodiments, the sealing member 63 is spaced apart from the first region 21, and the sealing member 63 is spaced apart from the first protective structure 31. Specifically, when the sealing member 63 blocks the first region 21 and the first protection structure 31, the sealing member 63 is spaced apart from the first protection structure 31, and the sealing member 63 is spaced apart from the first region 21 along the optical axis direction of the camera module 200. Therefore, the sealing member 63 does not abut against the first lens 20, so that the situation that the first lens 20 is pressed to fall off from the limiting ring 13 due to too large force when the sealing member 63 abuts against the first lens 20 can be avoided.

Referring to fig. 2, a lens assembly 100 according to an embodiment of the present disclosure includes a lens barrel 10 and a first lens 20. The lens barrel 10 includes a barrel top surface 11. The object side surface S1 of the first lens 20 includes a first area 21 and a second area 22, the first area 21 surrounds the second area 22, the second area 22 protrudes from the first area 21, a portion of the first lens 20 is accommodated in the lens barrel 10, and the second area 22 protrudes from the barrel top surface 11; a first protection structure 31 is formed at a junction 23 between the first region 21 and the second region 22, and the first protection structure 31 is used for preventing light from being projected onto the image sensor 52 of the camera module 200 after passing through the junction 23.

Referring to fig. 3 and 4, the connection portion 23 includes not only the connection line connecting the first region 21 and the second region 22, but also a region of the first region 21 close to the connection line and a region of the second region 22 close to the connection line. For example, the joint 23 includes an annular region of the first region 21 having a width of 0.2mm to 2mm near the end of the joint line, and an annular region of the second region 22 having a width of 0.2mm to 2mm near the end of the joint line.

Referring to fig. 2 and 3, the first protection structure 31 may be a portion of the first lens 20, and at this time, the first protection structure 31 and the first lens 20 are an integral structure; referring to fig. 5 and 7, the first protection structure 31 and the first lens 20 may be separate structures, and the first protection structure 31 is disposed on the first lens 20.

Referring to fig. 2, the first protection structure 31 can change the refractive index at the connection 23, when the incident light passes through the first protection structure 31, the first protection structure 31 refracts the incident light to an area outside the image sensor 52, so that the incident light does not project onto the image sensor 52 after passing through the first protection structure 31; the first protection structure 31 may also be a light-shielding structure, and in this case, when incident light passes through the first protection structure 31, the incident light is shielded (or absorbed) by the first protection structure 31, so that the incident light cannot enter the lens barrel 10; the first protection structure 31 may also be a reflective structure, and in this case, when the incident light passes through the first protection structure 31, the incident light is reflected by the first protection structure 31 to the outside of the lens barrel 10, so that the incident light cannot enter the lens barrel 10.

In the lens assembly 100 of the present application, the second area 22 of the first lens 20 protrudes from the top surface 11 of the lens barrel, and when light (incident light) outside the lens assembly 100 enters the lens barrel 10 from the second area 22, the light cannot be blocked by the lens barrel 10, so that the light (incident light) that can enter the lens assembly 100 has a larger incident angle (a larger field range); meanwhile, the first protection structure 31 is disposed at the connection portion 23, and incident light passing through the first protection structure 31 is not projected onto the image sensor 52 of the camera module 200, so as to prevent the image sensor 52 from forming ghost.

Referring to fig. 2, a lens assembly 100 of the present application includes a lens barrel 10, a first lens 20, and a second lens 40.

The lens barrel 10 includes an annular barrel side wall 12 and a limiting ring 13, the limiting ring 13 protrudes from one end of the barrel side wall 12 toward the optical axis OO1 (i.e., the limiting ring 13 protrudes in a radial direction), the barrel side wall 12 and the limiting ring 13 together enclose an accommodating cavity 14, and the limiting ring 13 encloses an accommodating hole 15 communicating with the accommodating cavity 14. In this embodiment, the optical axis OO1 coincides with the central axis of the lens barrel 10, the lens barrel 10 includes a barrel top surface 11, the barrel top surface 11 may be composed of an end surface of the barrel side wall 12 and an end surface of the limit ring 13, and at this time, the end surface of the barrel side wall 12 is flush with the end surface of the limit ring 13. The top surface 11 of the lens barrel can be in a ring shape, a square ring shape, an elliptical ring shape or a polygonal ring shape. The cross section of the accommodation hole 15 (a section perpendicular to the optical axis OO 1) may be circular, rectangular, elliptical, polygonal, or the like. In other embodiments, the barrel top surface 11 is an end surface of the barrel sidewall 12, and at this time, the limiting ring 13 is recessed relative to the barrel top surface 11.

Object side S1 of first lens 20 includes first area 21 and second area 22. The first area 21 surrounds the second area 22, the second area 22 protrudes from the first area 21, a portion of the first lens 20 is accommodated in the lens barrel 10, and the second area 22 protrudes from the top surface 11 of the lens barrel.

Referring to fig. 3 and 4, a first protection structure 31 is formed at a joint 23 between the first region 21 and the second region 22, and the first protection structure 31 is used to prevent incident light from passing through the joint 23 and then being projected onto an image sensor 52 of the camera module 200. In this embodiment, the first protection structure 31 may be a part of the first lens 20, in this case, the first protection structure 31 and the first lens 20 are an integral structure, the first protection structure 31 is located at the junction 23 and smoothly connects the first area 21 and the second area 22, the second area 22 is a curved surface, the first protection structure 31 is also a curved surface, and the radius of curvature of the second area 22 is smaller than that of the first protection structure 31; it will be appreciated that the radius of curvature at any one location of the second region 22 is less than the radius of curvature at any one location of the first protective structure 31. When the incident light passes through the first protection structure 31, the first protection structure 31 refracts the light to a region outside the image sensor 52, so that the incident light does not project onto the image sensor 52 after passing through the first protection structure 31.

Referring to fig. 3 and 4, the image side surface S2 of the first lens 20 is provided with a positioning groove 24, the positioning groove 24 includes a bottom surface 241, an inner side surface 242 and a connecting surface 243, the connecting surface 243 is connected to the bottom surface 241, the inner side surface 242 surrounds the connecting surface 241 and the bottom surface 241, and the connecting surface 243 is connected to the bottom surface 241 and the inner side surface 242. The positioning groove 24 is opened at the center of the image side surface S2 of the first lens 20, and the central axis of the positioning groove 24 coincides with the central axis of the second area 22. In the present embodiment, the diameter D1 of the positioning slot 24 is smaller than or equal to the diameter D2 of the second region 22. In other embodiments, the diameter of the positioning slot 24 may also be greater than the diameter D2 of the second region 22.

First lens 20 includes a lens side 25, and lens side 25 is attached to and surrounds first area 21. The lens side 25 is cylindrical. The first lens 20 is installed in the receiving hole 15, and the lens side surface 25 is combined with the inner wall of the limiting ring 13.

The connecting surface 243 and the inner side surface 242 may be formed with a second protective structure 32, and the second protective structure 32 is used to prevent light from being projected onto the image sensor 52 after passing through the connecting surface 243 and/or the inner side surface 242. Specifically, when incident light passes through the second protective structure 32, the second protective structure 32 can block (or absorb), reflect or refract the incident light, so that the incident light is not projected to the image sensor 52; when the reflected light inside the lens barrel 10 passes through the second protection structure 32, the second protection structure 32 can block (or absorb), reflect, or refract the reflected light so that the reflected light is not projected to the image sensor 52.

The second protective structure 32 may be formed on the entire connecting surface 243; alternatively, a portion of the connecting surface 243 may be formed with the second protective structure 32, for example, an end of the connecting surface 243 near the inner side surface 242 may be formed with the second protective structure 32. The inner side surface 242 may be formed with the second protective structure 32 over the entire surface; alternatively, a portion of the inner side surface 242 may be formed with the second protective structure 32, for example, an end of the inner side surface 242 near the connecting surface 243 may be formed with the second protective structure 32. In this embodiment, the second protective structure 32 is a frosted structure or an atomized structure formed by the connecting surface 243 and the inner side surface 242, and in this case, the second protective structure 32 and the first lens 20 are integrated. When the incident light passes through the second protection structure 32, the incident light is refracted in multiple directions on the second protection structure 32, so that the amount of light projected to the image sensor 52 after passing through the second protection structure 32 can be reduced; when the light in the lens barrel 10 is reflected to the second protection structure 32, the light is diffusely reflected on the second protection structure 32, so that the amount of light projected to the image sensor 52 after passing through the second protection structure 32 can be reduced.

The second lens 40 is installed in the containing cavity 14, and the second lens 40 abuts against the first lens 20 and the limiting ring 13. Object side S3 of second lens 40 includes third zone 41, fourth zone 42, and fifth zone 43. Fourth zone 42 surrounds fifth zone 43, third zone 41 surrounds fourth zone 42 and fifth zone 43, fourth zone 42 connects third zone 41 and fifth zone 43, and fifth zone 43 is convex toward first lens 20 relative to third zone 41. The third area 41 abuts against the image side surface S2 of the first lens 20 and a side of the limiting ring 13 away from the barrel top surface 11, the fourth area 42 and the fifth area 43 are both accommodated in the positioning groove 24, the fourth area 42 abuts against the inner side surface 242, and the fifth area 44 abuts against the connecting surface 243.

The third protection structure 33 is formed on the fourth area 42 and the fifth area 43, and the third protection structure 33 is used for preventing light from being projected onto the image sensor 52 after passing through the fourth area 42 and/or the fifth area 43. Specifically, when incident light passes through the third protective structure 33, the third protective structure 33 can block (or absorb), reflect or refract the incident light, so that the incident light is not projected to the image sensor 52; when the reflected light inside the lens barrel 10 passes through the third protective structure 33, the third protective structure 33 can block (or absorb), reflect, or refract the reflected light so that the reflected light is not projected to the image sensor 52.

In the present embodiment, the third protection structure 33 is a frosted structure, an atomized structure, or an atomized structure formed on the fourth area 42 and the fifth area 43, and in this case, the second protection structure 32 is integrated with the first lens 20. When the incident light passes through the third protective structure 33, the incident light is refracted in multiple directions on the third protective structure 33, so that the quantity of light projected to the image sensor 52 after passing through the third protective structure 33 can be reduced; when the light in the lens barrel 10 is reflected to the third protection structure 33, the light is diffusely reflected on the third protection structure 33, so that the amount of light projected to the image sensor 52 after passing through the third protection structure 33 can be reduced.

In the lens assembly 100 of the present application, the second area 22 of the first lens 20 protrudes from the top surface 11 of the lens barrel, and when light (incident light) outside the lens assembly 100 enters the lens barrel 10 from the second area 22, the light cannot be blocked by the lens barrel 10, so that the light (incident light) that can enter the lens assembly 100 has a larger incident angle (a larger field range); meanwhile, the first protection structure 31 is disposed at the connection portion 23, and incident light passing through the first protection structure 31 is not projected onto the image sensor 52 of the camera module 200, so as to prevent the image sensor 52 from forming ghost. The lens assembly 100 of the present application also has the following advantageous effects: the first protective structure 31 is a part of the first lens 20, thereby reducing the number of components of the lens assembly 100 and facilitating assembly of the lens assembly 100; the first lens 20 is arranged in the containing hole 15, and the side surface 25 of the lens is combined with the inner wall of the limit ring 13, so that the second area 22 can protrude out of the top surface 11 of the lens barrel more, and the incidence angle of the second area 22 can be increased; the second lens 20 abuts against the top surface 11 of the limiting ring 13 away from the lens barrel, so that the second lens 20 is fixed on the lens barrel 10; the first lens 20 is provided with a positioning groove 24, so that the second lens 40 can be conveniently positioned and installed on the first lens 20; the second protection structure 32 is formed on the connection surface 243 and the inner side surface 242, so that the light quantity of the light projected to the image sensor 52 after passing through the second protection structure 32 can be reduced; the third protection structures 33 are formed on the fourth region 42 and the fifth region 43, so that the amount of light projected to the image sensor 52 after passing through the third protection structures 33 can be reduced.

Referring to fig. 5, in some embodiments, the first protection structure 31 is a light-shielding coating, and the first protection structure 31 covers at least a portion of the first region 21 and a portion of the second region 22. Specifically, the first protection structure 31 is a reflection film or black ink plated (or coated) on the connection portion 23, and at this time, the first protection structure 31 and the first lens 20 are separate structures.

If the first protection structure 31 is a reflective film, when the incident light passes through the first protection structure 31, the incident light is reflected by the first protection structure 31 to the outside of the lens barrel 10, so that the incident light cannot enter the lens barrel 10. If the first protection structure 31 is black ink, when the incident light passes through the first protection structure 31, the incident light is blocked by the first protection structure 31, so that the incident light cannot enter the lens barrel 10.

In the present embodiment, the first protection structure 31 can prevent incident light from passing through, so as to prevent the incident light from being projected onto the image sensor 52 and forming a ghost image after passing through the connection 23.

Referring to fig. 6 and 7, in some embodiments, the top surface 11 of the lens barrel has an annular mounting groove 16, and the mounting groove 16 surrounds the receiving hole 15 and is communicated with the receiving hole 15. The first protection structure 31 is ring-shaped, and the first protection structure 31 is installed in the installation groove 16 and covers the first area 21 and a portion of the second area 22.

Specifically, the first protection structure 31 may be a light shielding sheet, and when the incident light passes through the first protection structure 31, the incident light is shielded (or absorbed) by the first protection structure 31, so that the incident light cannot enter the lens barrel 10. The first protection structure 31 may completely cover the first region 21 and the junction 23. In the present embodiment, the incident light is blocked when passing through the first protection structure 31, so as to prevent the light from being projected onto the image sensor 52 and forming ghost images after passing through the connection portion 23.

Referring to fig. 4, in some embodiments, the third protective structure 33 is a plating layer plated on the fourth region 42 and the fifth region 43, and the second protective structure 32 is a plating layer plated on the connecting surface 243 and the inner side surface 242. The plating layer of the present embodiment may be a reflective film or black ink. In this case, the second protection structure 32 is separate from the first lens 20, and the third protection structure 33 is separate from the second lens 40.

If the second protection structure 32 is a reflective film, when the incident light passes through the second protection structure 32, the incident light is reflected by the second protection structure 32 to the outside of the lens barrel 10, so that the incident light cannot enter the lens barrel 10; when the reflected light inside the lens barrel 10 passes through the second protection structure 32, the reflected light is reflected by the second protection structure 32 to an area outside the image sensor 52, so that the reflected light passing through the second protection structure 32 is not reflected to the image sensor 52. If the second protection structure 32 is black ink, when incident light passes through the second protection structure 32, the incident light is shielded (or absorbed) by the second protection structure 32, so that the incident light cannot enter the lens barrel 10; when the reflected light inside the lens barrel 10 passes through the second protection structure 32, the reflected light is absorbed by the second protection structure 32, so that the reflected light passing through the second protection structure 32 is not reflected onto the image sensor 52.

If the third protection structure 33 is a reflective film, when the incident light passes through the third protection structure 33, the incident light is reflected by the third protection structure 33 to the outside of the lens barrel 10, so that the incident light cannot enter the lens barrel 10; when the reflected light inside the lens barrel 10 passes through the third protection structure 33, the reflected light is reflected by the third protection structure 33 to an area outside the image sensor 52, so that the reflected light passing through the third protection structure 33 is not reflected to the image sensor 52. If the third protection structure 33 is black ink, when the incident light passes through the third protection structure 33, the incident light is absorbed by the third protection structure 33, so that the incident light cannot enter the lens barrel 10; when the reflected light inside the lens barrel 10 passes through the third protection structure 33, the reflected light is blocked (or absorbed) by the third protection structure 33, so that the reflected light is not reflected onto the image sensor 52.

Referring to fig. 2, in some embodiments, the number of the lenses in the lens assembly 100 may also be more than two. For example, the number of lenses may also be three, four, five, six, seven, eight, etc. The plurality of lenses includes at least a first lens 20 and a second lens 40. The lens assembly 100 may further include a light-shielding sheet 101, and the light-shielding sheet 101 is annular and disposed between any two adjacent lenses. The light shielding sheet 101 located between the first lens 20 and the second lens 40 is accommodated in the positioning groove 24 and clamped between the connecting surface 243 and the fifth area 43.

Referring to fig. 8, a camera module 200 according to the present application includes a substrate 51, a lens assembly 100 according to any one of the above embodiments, and an image sensor 52. The lens assembly 100 is disposed on the substrate 51. The image sensor 52 is disposed on the substrate 51 and corresponds to the first lens 20.

The substrate 51 may be a printed circuit board, a flexible circuit board, or a rigid-flex board. The end of the lens barrel 10 away from the top surface 11 of the lens barrel is disposed on the substrate 51. The image sensor 52 corresponds to the first lens 11, and means: the optical axis passes through the center of the image sensor 11; alternatively, the central axis of the first lens 20 passes through the center of the image sensor 11. The lens barrel 10 may be directly mounted on the substrate 51; alternatively, the camera module 200 further includes a ring-shaped lens holder (not shown) mounted on the substrate 51, and the lens barrel 10 is mounted at an end of the lens holder away from the substrate 51 to be mounted on the substrate 51 through the lens holder. When the lens barrel 10 is directly mounted on the substrate 51, the image sensor 52 may be housed within the lens barrel 10; when the lens barrel 10 is mounted on the substrate 51 through the lens mount, the image sensor 52 may be housed in the lens mount.

In the camera module 200 of the present application, the second region 22 of the first lens 20 protrudes from the top surface 11 of the lens barrel, and when light (incident light) outside the lens assembly 100 enters the lens barrel 10 from the second region 22, the light cannot be blocked by the lens barrel 10, so that the light (incident light) that can enter the lens assembly 100 has a larger incident angle (a larger field range); meanwhile, the first protection structure 31 is disposed at the connection portion 23, and incident light passing through the first protection structure 31 is not projected onto the image sensor 52 of the camera module 200, so as to prevent the image sensor 52 from forming ghost.

Referring to fig. 9, the front housing device 300 of the present application includes a display module 61, a cover plate 62 and the camera module 200 of the above embodiment. The display module 61 is provided with a light hole 611. The cover plate 62 is disposed on one side of the display module 61 and blocks the light passing hole 611. The lens barrel 11 is located on a side of the display module 61 opposite to the cover 62, and the second region 22 extends into the light hole 611.

The display module 61 may be an Organic Light-Emitting Diode (OLED) display module. The light passing hole 611 has a circular cross-section. The diameter of the light through hole 611 is smaller than that of the lens barrel 11, and the lens barrel 11 is located outside the light through hole 611. In the present embodiment, the second region 22 extends completely into the light hole 611. In other embodiments, the cross section of the light passing hole 611 may be rectangular, elliptical, or polygonal. The cross-sectional shape of the light passing hole 611 corresponds to the cross-sectional shape of the housing hole 15, for example, when the cross-sectional shape of the housing hole 15 is circular, the cross-sectional shape of the light passing hole 611 is circular.

Among the present preceding shell device, in order to make the camera module have great incident angle to avoid the outside light of preceding shell device to be sheltered from by display module and can't get into the camera module, the lens-barrel of camera module and lens all stretch into in the logical unthreaded hole that display module seted up, thereby lead to leading to the diameter of logical unthreaded hole great.

In the front shell device 300 of the present application, the second region 22 of the first lens 20 protrudes from the top surface 11 of the lens barrel, when light (incident light) outside the lens assembly 100 enters the lens barrel 10 from the second region 22, the light cannot be blocked by the lens barrel 10, so that the light (incident light) that can enter the lens assembly 100 has a larger incident angle (a larger field of view), and only the smaller light through hole 611 is provided to obtain the same amount of light as the larger light through hole provided in the existing front shell device; meanwhile, the first protection structure 31 is disposed at the connection portion 23, and incident light passing through the first protection structure 31 is not projected onto the image sensor 52 of the camera module 200, so as to prevent the image sensor 52 from forming ghost; further, the front shell device 300 is provided with the sealing member 63 between the lens barrel top surface 11 and the display module 61, so that dust and water vapor outside the front shell device 300 can be prevented from entering the light through hole 611 and adhering to the first lens 20, and the imaging quality of the camera module 200 can be ensured.

Referring to fig. 1 and 11, in some embodiments, the front housing 300 may further include a sealing member 63, the sealing member 63 is disposed between the lens barrel 10 and the display module 61, and the sealing member 63 surrounds the light passing hole 611. The sealing member 63 is used for sealing the gap between the lens barrel top surface 11 and the display module 61. The sealing member 63 may be in the shape of a ring, a square ring, an oval ring, or a polygonal ring; more specifically, the shape of the barrel top surface 11 of the sealing member 63 corresponds, for example, when the barrel top surface 11 is circular, the sealing member 63 is also circular; when the barrel top surface 11 has a square ring shape, the seal 63 also has a square ring shape. The sealing member 63 is made of an annular soft material, and the sealing member 63 may be made of, for example, annular foam or annular silicone. The inner diameter of the sealing member 63 is larger than the diameter of the light passing hole 611, and the central axis of the sealing member 63 coincides with the central axis of the light passing hole 611.

In the front housing device 300 of the present embodiment, the sealing member 63 is provided between the lens barrel 10 and the display module 61, so that dust, moisture, and the like outside the front housing device 300 can be prevented from entering the light passing hole 611 along the gap between the lens barrel top surface 11 and the display module 61.

Referring to fig. 10 and 11, in some embodiments, the front housing 300 further includes a light shielding member 64, and the light shielding member 64 is disposed on an inner surface of the light passing hole 611 and prevents light emitted from the display module 61 due to a display screen or the like from entering the light passing hole 611. Specifically, the light shielding member 64 is provided on the entire inner surface of the light passing hole 611, and the sealing member 64 is annular and surrounds the second region 22.

The light shield 64 may be black ink or black glue; when the light shielding member 64 is black glue, the light shielding member 64 may be formed on the inner surface of the light passing hole 611 by dispensing; when the light-shielding member 64 is black ink, the light-shielding member 64 may be formed by the black ink on the inner surface of the light-passing hole 611.

In the front housing device 300 of the present embodiment, the light shielding member 64 is disposed on the inner surface of the light hole 611, so that the light emitted from the display module 61 can be prevented from entering the light hole 611 and being projected onto the image sensor 52, and the imaging quality of the image sensor 52 can be improved.

Referring to fig. 11, in some embodiments, the front shell assembly 300 may further include both the light shield 64 and the sealing member 63. The light shielding member 64 is disposed on an inner surface of the light passing hole 611 and prevents light emitted from the display module 61 from entering the light passing hole 611. The sealing member 63 is disposed between the lens barrel 10 and the display module 61, and the sealing member 63 surrounds the light passing hole 611 and the light shielding member 64. The sealing member 63 is used for sealing the gap between the lens barrel top surface 11 and the display module 61.

In the front housing device 300 of the present embodiment, the light shielding member 64 is disposed on the inner surface of the light through hole 611, so that light emitted from the display module 61 can be prevented from entering the light through hole 611 and being projected onto the image sensor 52, and the imaging quality of the image sensor 52 can be improved; meanwhile, the front shell device 300 can prevent dust, moisture, and the like outside the front shell device 300 from entering the light passing hole 611 along the gap between the lens barrel top surface 11 and the display module 61 by providing the sealing member 63 between the lens barrel 10 and the display module 61.

Referring to fig. 12, a mobile terminal 400 of the present application includes a housing 70 and the front housing 300 of the above embodiment. The housing 70 is formed with a mounting groove (not shown). The front case device 300 is mounted on the housing case 70, and the camera module 200 and the display module 61 are received in the mounting grooves.

In the mobile terminal 400 of the present application, the second area 22 of the first lens 20 protrudes from the lens barrel top surface 11, and when light (incident light) outside the lens assembly 100 enters the lens barrel 10 from the second area 22, the light cannot be blocked by the lens barrel 10, so that the light (incident light) that can enter the lens assembly 100 has a larger incident angle (a larger field range); meanwhile, the first protection structure 31 is disposed at the connection portion 23, and incident light passing through the first protection structure 31 is not projected onto the image sensor 52 of the camera module 200, so as to prevent the image sensor 52 from forming ghost.

In the description herein, reference to the description of the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "a plurality" means at least two, e.g., two, three, unless specifically limited otherwise.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art within the scope of the present application, which is defined by the claims and their equivalents.

Claims (11)

1. A front shell arrangement, characterized in that the front shell arrangement comprises:

the display module is provided with a light through hole;

the cover plate is arranged on one side of the display module and shields the light through hole;

the camera module comprises a lens component, the lens component comprises a lens barrel and a first lens, the lens barrel is positioned on one side of the display module, which is far away from the cover plate, the lens barrel comprises a lens barrel top surface, the first lens is arranged in the lens barrel and partially protrudes out of the lens barrel top surface, and the part of the first lens, which protrudes out of the lens barrel top surface, extends into the light through hole; and

and the sealing element is positioned between the top surface of the lens barrel and the display module, and surrounds the light through hole.

2. The front shell device of claim 1, wherein the object-side surface of the first lens includes a first region and a second region, the first region surrounds the second region, the second region protrudes from the first region, and the second region protrudes from the top surface of the lens barrel and extends into the light through hole; and a first protection structure is formed at the joint of the first area and the second area and is used for preventing light rays from being projected onto an image sensor of the camera module after passing through the joint.

3. The front shell assembly of claim 2, wherein the seal completely covers the top surface of the barrel, the seal covering a portion of the first region.

4. The anterior shell assembly of claim 2, wherein said first protective structure is part of said first lens, said first protective structure being located at said junction and smoothly connecting said first zone and said second zone, said second zone being curved, said second zone having a radius of curvature less than a radius of curvature of said first protective structure; or

The first protection structure is a light-shielding coating, and the first protection structure covers at least a part of the first area and a part of the second area.

5. The front shell device according to claim 2, wherein the lens barrel comprises an annular barrel side wall and a limiting ring, the limiting ring protrudes from one end of the barrel side wall in the optical axis direction, the barrel side wall and the limiting ring jointly enclose an accommodating cavity, and the limiting ring encloses an accommodating hole communicated with the accommodating cavity; the first lens comprises a lens side face, the lens side face is connected with and surrounds the first area, the first lens is installed in the accommodating hole, and the lens side face is combined with the inner wall of the limiting ring.

6. The front shell device according to claim 5, wherein the top surface of the lens barrel is provided with an annular mounting groove, and the mounting groove surrounds the accommodating hole and is communicated with the accommodating hole; the first protection structure is annular and is arranged in the mounting groove and covers the first area and part of the second area.

7. The front shell device according to claim 2, wherein the image side surface of the first lens is provided with a positioning groove, the positioning groove comprises a bottom surface, an inner side surface and a connecting surface, the connecting surface surrounds the bottom surface, the inner side surface surrounds the connecting surface, the connecting surface connects the bottom surface and the inner side surface, the connecting surface and the inner side surface are formed with a second protection structure, and the second protection structure is used for preventing light from being projected onto the image sensor through the connecting surface and/or the inner side surface.

8. The front housing apparatus of claim 7, wherein the lens assembly further comprises a second lens abutting the first lens, an object-side surface of the second lens comprising a third area, a fourth area, and a fifth area, the fourth area surrounding the fifth area, the third area surrounding the fourth area, the fourth area connecting the third area and the fifth area, the fifth area protruding toward the first lens relative to the third area, the third area abutting an image-side surface of the first lens, the fourth area and the fifth area both being received in the positioning groove, the fourth area abutting the inner-side surface, the fifth area abutting the connecting surface; and a third protection structure is formed on the fourth area and the fifth area and is used for preventing light rays from being projected onto the image sensor after passing through the fourth area and/or the fifth area.

9. The front housing arrangement, as set forth in claim 8, wherein said second protective structure is a frosted structure formed by said attachment surface and said inner side surface, and said third protective structure is a frosted structure of said fourth region and said fifth region; or

The second protection structure is a plating layer plated on the connecting surface and the inner side surface, and the third protection structure is a plating layer plated on the fourth area and the fifth area.

10. Front shell arrangement according to any one of claims 2 to 9, characterized in that the seal is spaced apart from the first protective structure.

11. A mobile terminal, characterized in that the mobile terminal comprises:

a housing formed with a mounting groove; and

the front housing arrangement of any one of claims 1 to 10, said front housing arrangement being mounted on said chassis, said camera module and said display module being received in said mounting slot.