WO2020038055A1

WO2020038055A1 - Time-of-flight component and mobile terminal

Info

Publication number: WO2020038055A1
Application number: PCT/CN2019/090068
Authority: WO
Inventors: 韦怡
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-08-22
Filing date: 2019-06-05
Publication date: 2020-02-27
Also published as: CN109151112A

Abstract

A time-of-flight component (100). The time-of-flight component (100) comprises a time-of-flight module (20), a support (10), and a lens group (30); the time-of-flight module (20) comprises a light transmitter (23) and a light receiver (24); a light emergent hole (111) corresponding to the light transmitter (23) and a light incident hole (112) corresponding to the light receiver (24) are provided on the support (10); the lens group (30) is installed on the support (10); the lens group (30) covers the light emergent hole (111) and the light incident hole (112); an infrared transmission layer (34) is formed on the lens group (30).

Description

Time-of-flight components and mobile terminals

Priority information

This application claims the priority and rights of a patent application filed with the State Intellectual Property Office of China on August 22, 2018, with a patent application number of 201810962800.X, and the entirety of which is incorporated herein by reference.

Technical field

The present application relates to the field of consumer electronics technology, and more particularly, to a time-of-flight component and a mobile terminal.

Background technique

The mobile phone can be equipped with a time-of-flight module. The transmitting end of the time-of-flight module emits detection light, and the receiving end receives the detection light reflected by an external object to obtain the depth information of the object. Usually, a light-transmissive cover is also required. Cover the time of flight module.

Summary of the Invention

Embodiments of the present application provide a time-of-flight component and a mobile terminal.

The time-of-flight component according to the embodiment of the present application includes a time-of-flight module, a bracket, and a lens group. The time-of-flight module includes a light transmitter and a light receiver; the bracket is provided with a light emitting hole corresponding to the light transmitter and a light receiving hole corresponding to the light receiver; the lens group is mounted on On the bracket, the lens group covers the light exit hole and the light entrance hole, and an infrared transmission layer is formed on the lens group.

The mobile terminal according to the embodiment of the present application includes a cover and a time-of-flight component according to the embodiment of the present application. The cover is provided with a through-hole, and the time-of-flight component corresponds to the through-hole.

Additional aspects and advantages of the embodiments of the present application will be partially given in the following description, and part of them will become apparent from the following description, or be learned through the practice of the embodiments of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

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

1 is a schematic perspective view of a mobile terminal according to an embodiment of the present application;

2 is a schematic plan view of a mobile terminal according to an embodiment of the present application;

3 is a schematic partial cross-sectional view of a mobile terminal according to an embodiment of the present application;

4 is a schematic partial cross-sectional view of a mobile terminal according to another embodiment of the present application;

5 is a schematic partial cross-sectional view of a mobile terminal according to another embodiment of the present application;

6 is a schematic structural diagram of a light emitting lens and a light entering lens according to an embodiment of the present application;

7 is a perspective structural diagram of a time-of-flight module according to an embodiment of the present application;

8 is a schematic top view of a time-of-flight module according to an embodiment of the present application;

9 is a schematic bottom view of a time-of-flight module according to an embodiment of the present application;

10 is a schematic side view of a time-of-flight module according to an embodiment of the present application;

11 is a schematic cross-sectional view of the time-of-flight module shown in FIG. 8 along the XI-XI line;

FIG. 12 is an enlarged schematic diagram of the XII part in the time-of-flight module shown in FIG. 11; FIG.

FIG. 13 is a schematic diagram of the front structure of the time of flight module according to the embodiment of the present application when the flexible circuit board is not bent.

detailed description

The embodiments of the present application are further described below with reference to the accompanying drawings. The same or similar reference numerals in the drawings represent the same or similar elements or elements having the same or similar functions throughout.

In addition, the embodiments of the present application described below with reference to the drawings are exemplary, and are only used to explain the embodiments of the present application, and should not be construed as limiting the present application.

In this application, unless explicitly stated and defined otherwise, the first feature "on" or "down" of the second feature may be the first and second features in direct contact, or the first and second features indirectly through an intermediate medium. contact. Moreover, the first feature is "above", "above", and "above" the second feature. The first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in level than the second feature. The first feature is “below”, “below”, and “below” of the second feature. The first feature may be directly below or obliquely below the second feature, or it may simply indicate that the first feature is less horizontal than the second feature.

The time-of-flight component 100 according to the embodiment of the present application includes a time-of-flight module 20, a bracket 10, and a lens group 30. The time of flight module 20 includes a light transmitter 23 and a light receiver 24. The bracket 10 is provided with a light exit hole 111 and a light entrance hole 112. The light exit hole 111 corresponds to the light emitter 23, and the light entrance hole 112 corresponds to the light receiver 24. The lens group 30 is mounted on the bracket 10. The lens group 30 covers the light exit hole 111 and the light entrance hole 112. An infrared transmission layer 34 is formed on the lens group 30.

In some embodiments, the infrared transmitting layer 34 includes an infrared transmitting ink and / or an infrared transmitting film.

In some embodiments, the bracket 10 includes a main body 11 and a spacer 12, a light exit hole 111 and a light entrance hole 112 are opened on the body 11, a lens group 30 includes a light exit lens 31 and a light entrance lens 32, and the light exit lens 31 covers the light exit hole 111. The light incident lens 32 covers the light incident hole 112, and the spacer 12 separates the light incident lens 31 and the light incident lens 32.

In some embodiments, the spacer 12 and the body 11 together form at least two receiving grooves 13. At least two receiving grooves 13 are spaced from each other. The light-exiting lens 31 and the light-entering lens 32 are disposed in different receiving grooves 13.

In some embodiments, the spacer 12 and the main body 11 are integrally formed, or the spacer 12 and the main body 11 are formed separately, and the spacer 12 is connected to the main body 11.

In some embodiments, the height of the spacer 12 is greater than or equal to the thickness of the light emitting lens 31 and / or the thickness of the light incident lens 32.

In some embodiments, the light emitting lens 31 is embedded on the inner wall of the light emitting hole 111; and / or the light incident lens 32 is embedded on the inner wall of the light incident hole 112.

In some embodiments, the bracket 10 further includes a partition wall 14 extending from the body 11 to the time-of-flight module 20. The partition wall 14 surrounds the light transmitter 23 and the light receiver 24.

In some embodiments, the light emitting lens 31 is made of silica glass; and / or the light incident lens 32 is made of silica glass.

In some embodiments, an anti-reflection coating 33 is provided on at least one of the light incident surface and the light emitting surface of the light emitting lens 31; and / or at least one of the light incident surface and the light emitting surface of the light incident lens 32 may be provided. Reflective film 33.

The mobile terminal 1000 according to the embodiment of the present application includes a cover 300 and a time-of-flight component 100. A through-hole 301 is defined in the cover 300, and the time-of-flight component 100 corresponds to the through-hole 301.

In some embodiments, the mobile terminal 1000 further includes a case 200, which is combined with the cover 300 to form a receiving space 201, the through hole 301 communicates with the receiving space 201, and the time-of-flight module 20 further includes a first substrate The module 21, the light transmitter 23 and the light receiver 24 are disposed on the first substrate assembly 21. The light transmitter 23 and the light receiver 24 are installed in the receiving space 201 and exposed from the through hole 301. The first substrate assembly 21 is installed on The case 200.

In some embodiments, the mobile terminal 1000 further includes a main board 600, which is mounted on the chassis 200, and the first substrate 21 is carried on the main board 600; 600 and contained in the perforation 601.

In some embodiments, the case 200 is any one of a front case, a rear case, and a middle frame of the mobile terminal 1000.

In some embodiments, the bracket 10 and the cover 300 are an integrally formed structure.

In some embodiments, the mobile terminal 1000 further includes a dual camera module 400. The dual camera module 400 includes a main camera 401 and a sub camera 402, a light receiver 24, a light transmitter 23, a main camera 401, and a sub camera 402. The centers are on the same straight line Z.

Referring to FIGS. 1 to 3, a mobile terminal 1000 according to an embodiment of the present application includes a case 200, a cover 300 and a time-of-flight component 100. The mobile terminal 1000 may be a mobile phone, a tablet computer, a game console, a smart watch, a headset device, a drone, etc. The embodiment of the present application is described using the mobile terminal 1000 as a mobile phone as an example. It can be understood that the specific form of the mobile terminal 1000 is Not limited to mobile phones.

The case 200 may serve as an installation carrier for the functional elements of the mobile terminal 1000. The case 200 may provide protection for the functional elements from dust, water, and drop. The functional elements may be a display screen 500, a receiver, and the like. The casing 200 includes opposite front and back surfaces. The display screen 500 may be disposed on the front.

The cover 300 is combined with the cabinet 200. In the embodiment of the present application, the cover 300 may be used as a back cover of the mobile terminal 1000. Of course, in other embodiments, the cover 300 may also be a front cover or a side cover of the mobile terminal 1000. The casing 200 and the cover 300 are combined to form a receiving space 201. The receiving space 201 can be used to install components such as a battery and a motherboard of the mobile terminal 1000, and the time-of-flight component 100 can also be installed in the receiving space 201. The cover 300 is provided with a through hole 301, and the through hole 301 communicates with the accommodation space 201. After the light passes through the through hole 301, it can enter the outside environment from the accommodation space 201, and the light in the external environment can also enter through the through hole 301. Containment space 201. When the time-of-flight assembly 100 is installed in the receiving space 201, the time-of-flight assembly 100 may be aligned with and exposed from the through-hole 301.

Referring to FIG. 3, the time-of-flight component 100 includes a time-of-flight module 20, a bracket 10, and a lens group 30. The time of flight module 20 includes a light transmitter 23 and a light receiver 24. The bracket 10 is provided with a light exit hole 111 and a light entrance hole 112. The light exit hole 111 corresponds to the light emitter 23, and the light entrance hole 112 corresponds to the light receiver 24. The lens group 30 is mounted on the bracket 10. The lens group 30 covers the light exit hole 111 and the light entrance hole 112. An infrared transmission layer 34 is formed on the lens group 30.

In existing mobile phones, users can see the time-of-flight module installed in the mobile phone through the cover, which reduces the aesthetic appearance of the mobile phone.

In the mobile terminal 1000 according to the embodiment of the present application, since the infrared transmission layer 34 is formed on the lens group 30, the infrared transmission layer 34 has a low transmittance for optical signals in the visible light band (for example, 400-700 nanometers). Affects the optical signal in the infrared light band (for example, 940 nanometers). Therefore, it is difficult for the user to observe the time-of-flight module 20 through the lens group 30, which improves the aesthetics of the appearance of the mobile terminal 1000.

Specifically, the time of flight module 20 includes a light transmitter 23 and a light receiver 24. The light transmitter 23 is configured to emit an optical signal outward. Specifically, the optical signal may be infrared light, and the optical signal may be a lattice light spot emitted to the measured object. The optical receiver 24 is configured to receive an optical signal emitted by the reflected optical transmitter 23.

The time-of-flight module 20 calculates the time difference between the light signal from the light transmitter 23 and the light receiving chip of the light receiver 24 to receive the light signal reflected by the measured object, and further obtains the depth information of the measured object. The depth information Can be used for ranging, for generating depth images, or for 3D modeling. It can be understood that the optical receiver 24 can accurately obtain the depth information of the measured object only based on the optical signal reflected by the measured object. If the optical signal of the optical transmitter 23 does not reach the measured object, it is directly received by the optical receiver 24 , It will cause misjudgment of the depth information of the measured object, resulting in a reduction in detection accuracy.

Referring to FIGS. 3 and 4, the bracket 10 includes a main body 11 and a spacer 12. The light exit hole 111 and the light entrance hole 112 are opened on the body 11. One side of the main body 11 may resist the time-of-flight module 20, and the other side may resist the cover 300. The main body 11 is provided with a light exit hole 111 and a light entrance hole 112. The light exit hole 111 can be aligned with the light emitter 23, and the optical signal emitted by the light transmitter 23 can pass through the light exit hole 111; the light entrance hole 112 can be aligned with the light receiver 24, and the external light signal can pass through the light entrance hole. After 112 enter the light receiver 24. The spacer 12 may be made of an opaque material. Further, the surface of the spacer 12 may have a high reflectance or absorption rate for light to prevent light signals from passing through the spacer 12.

In the example shown in FIG. 3, the spacer 12 is connected to the body 11, and the spacer 12 and the time of flight module 20 are located on opposite sides of the body 11. In one example, the spacer 12 and the main body 11 may be an integrally formed structure. For example, the spacer 12 and the main body 11 may be integrally formed by injection molding or the like, or the spacer 12 and the main body 11 may be obtained by cutting through a blank material. In another example, the spacer 12 and the main body 11 may be a separate molded structure. The spacer 12 is fixedly connected to the main body 11. For example, the spacer 12 and the main body 11 may be fixedly connected to the main body 11 by welding, gluing, or snapping.

Please continue to refer to FIGS. 2 and 3. The lens group 30 is mounted on the bracket 10. The lens group 30 and the time-of-flight module 20 can be located on opposite sides of the bracket 10. The lens group 30 includes a light emitting lens 31 and a light incident lens 32. The light emitting lens 31 covers the light emitting hole 111, and the optical signal emitted by the light transmitter 23 passes through the light emitting lens 31 and passes out of the mobile terminal 1000. The light-entering lens 32 covers the light-entering hole 112, and external light signals pass through the light-entering lens 32 and enter the mobile terminal 1000. The materials of the light-exiting lens 31 and the light-entering lens 32 may be consistent or inconsistent.

The infrared transmission layer 34 is formed on the lens group 30. Specifically, the infrared transmission layer 34 is formed on the light emitting lens 31 and the light incident lens 32. The infrared transmission layer 34 includes an infrared transmission ink, or the infrared transmission layer 34 includes an infrared transmission film, or the infrared transmission layer 34 includes an infrared transmission ink and an infrared transmission film. The infrared transmission layer 34 has a high transmittance for infrared light, for example, the transmittance can reach 85% or more, while the transmittance for light other than infrared light is low or makes light other than infrared light completely impermeable. Too. In the case where the light transmitter 23 emits infrared light and the light receiver 24 receives infrared light, infrared light can pass through the infrared transmission layer 34, and light other than infrared light (such as visible light) can hardly pass through the infrared transmission The layer 34, therefore, it is difficult for the user to see the time-of-flight module 20 through the light emitting lens 31 or the light entering lens 32.

In one example, the infrared transmission layer 34 is formed on the inner surface of the lens group 30. Specifically, the infrared transmission layer 34 is formed on the light incident surface of the light emitting lens 31, and the infrared transmission layer 34 is formed on the light incident lens 32. The light emitting surface prevents the infrared transmission layer 34 from being exposed outside the mobile terminal 1000 and prevents the infrared transmission layer 34 from falling or being corroded after being scratched.

The spacer 12 separates the light-emitting lens 31 and the light-receiving lens 32, or the light-emitting lens 31 and the light-receiving lens 32 are separated by the spacer 12. Since the spacer 12 is opaque, the light signal emitted from the side of the light-emitting lens 31 will not Passing through the spacer 12 will not directly reach the incident lens 32 without reflection from external objects, preventing crosstalk of the optical signals between the outgoing lens 31 and the incident lens 32, and improving the accuracy of the depth information detected by the time of flight module 20. Sex.

In one example, the bracket 10 and the cover 300 are an integrated structure. When assembling the mobile terminal 1000, the time-of-flight module 20 can be installed on the casing 200, and then the bracket 10 and the integrated structure of the cover 300 can be combined. Go to the case 200, and then install the light-emitting lens 31 and the light-entering lens 32 on the bracket 10; you can also first install the time-of-flight module 20 on the case 200, and simultaneously install the light-entering lens 32 and the light-emitting lens 31 respectively The bracket 10 is mounted on the bracket 10, and the integrated structure of the bracket 10 and the cover 300 with the light-entering lens 32 and the light-exiting lens 31 mounted thereon is coupled to the casing 200. In another example, the bracket 10 and the cover 300 may also be formed as separate structures. When assembling the mobile terminal 1000, the time-of-flight module 20, the bracket 10 and the lens group 30 may be assembled into a time-of-flight component 100, and then The time-of-flight assembly 100 is mounted on the casing 200 as a whole, and finally the cover 300 is combined with the casing 200.

In summary, in the mobile terminal 1000 according to the embodiment of the present application, since the infrared transmission layer 34 is formed on the lens group 30, the infrared transmission layer 34 has a low transmittance of optical signals in the visible light band (for example, 400-700 nm). Without affecting the optical signal in the infrared light band (for example, 940 nanometers). Therefore, it is difficult for the user to observe the time-of-flight module 20 through the lens group 30, thereby improving the aesthetic appearance of the mobile terminal 1000.

Please refer to FIG. 3. In some embodiments, the spacer 12 and the body 11 together form at least two receiving grooves 13. At least two receiving grooves 13 are spaced from each other. The light-exiting lens 31 and the light-entering lens 32 are disposed in different receiving grooves 13. Specifically, the spacer 12 may extend from the main body 11, a direction in which the spacer 12 extends from the main body 11 may be perpendicular to a plane where the main body 11 is located, and a plurality of receiving grooves 13 may be spaced apart from each other by the spacer 12. The light-exiting lens 31 and the light-entering lens 32 are disposed in different receiving grooves 13. Taking the light-emitting lens 31 as an example, the glue can be dispensed in the receiving groove 13 first, and then the light-emitting lens 31 can be installed in the receiving groove 13. The light-emitting lens 31 can resist the spacer 12 and the glue can fill the light-emitting lens 31 and the body. The gap between 11 and the gap between the light emitting lens 31 and the spacer 12 prevent external dust and moisture from entering the mobile terminal 1000 through the light emitting hole 111. The method for installing the light-entering lens 32 is similar to the method for installing the light-exiting lens 31, and details are not described herein again.

Referring to FIG. 3, in some embodiments, the height of the spacer 12 is greater than or equal to the thickness of the light-emitting lens 31. Alternatively, the height of the spacer 12 is greater than or equal to the thickness of the light incident lens 32. Alternatively, the height of the spacer 12 is greater than or equal to the thickness of the light emitting lens 31, and the height of the spacer 12 is greater than or equal to the thickness of the light emitting lens 31. It should be noted that the height of the spacer 12 refers to the height of the spacer 12 higher than the mounting plane of the light emitting lens 31 or the light incident lens 32. In the embodiment of the present application, the mounting planes of the light emitting lens 31 and the light incident lens 32 may be flush. Since the height of the spacer 12 is at least greater than the thickness of one of the light-emitting lens 31 and the light-receiving lens 32, the spacer 12 has a better blocking effect on the optical signal between the light-emitting lens 31 and the light-receiving lens 32. The optical signal directly emitted from the side cannot directly enter the light incident lens 32, thereby reducing the crosstalk of the optical signal.

Please refer to FIG. 5. In some embodiments, the light emitting lens 31 is embedded on the inner wall of the light emitting hole 111. Alternatively, the light incident lens 32 is embedded on the inner wall of the light incident hole 112. Alternatively, the light emitting lens 31 is embedded in the inner wall of the light emitting hole 111, and the light incident lens 32 is embedded in the inner wall of the light incident hole 112.

When the light emitting lens 31 is embedded in the inner wall of the light emitting hole 111, the light emitting lens 31 can be glued so that the side surface of the light emitting lens 31 abuts the inner wall of the light emitting hole 111, and the light emitting surface of the light emitting lens 31 can be the outer surface of the body 11. It is flush to reduce the overall thickness of the time-of-flight assembly 100. At this time, the spacer 12 can be formed by the body 11 between the light exit hole 111 and the light entrance hole 112. The light signal emitted from the side of the light exit lens 31 is blocked by the spacer 12. .

When the light incident lens 32 is embedded on the inner wall of the light incident hole 112, the light incident lens 32 can be glued so that the side surface of the light incident lens 32 is against the inner wall of the light incident hole 112, and the light incident surface of the light incident lens 32 It may be flush with the outer surface of the body 11 to reduce the overall thickness of the time-of-flight assembly 100.

Please refer to FIGS. 3 to 5. In some embodiments, the bracket 10 further includes a partition wall 14 extending from the main body 11 to the time-of-flight module 20. The partition wall 14 surrounds the light transmitter 23 and the light receiver 24. . The partition wall 14 and the spacer 12 may be respectively located on two opposite sides of the body 11, and the partition wall 14 and the body 11 may be formed with a plurality of cavities. When assembling the time-of-flight module 20 and the bracket 10, the light transmitter 23 and the light receiver 24 can be aligned with different cavities, respectively, and the light transmitter 23 is at least partially housed in a cavity. The light receiver 24 It is at least partially contained in another cavity. Due to the blocking effect of the partition wall 14, it is further avoided that the optical signal emitted by the optical transmitter 23 does not pass through the mobile terminal 1000 and is directly received by the optical receiver 24.

Please refer to FIG. 6. In some embodiments, the light emitting lens 31 is made of silica glass. Alternatively, the light incident lens 32 is made of silica glass. Alternatively, the light emitting lens 31 and the light entering lens 32 are made of silica glass. The silica glass material refers to the glass whose substrate is silica. The silica glass material has a high transmittance to infrared light (for example, infrared light with a wavelength of 940 nm), and the transmittance can reach 92% or more. When the transmittance is high, the loss of the optical signal when passing through the light emitting lens 31 or the light entering lens 32 is small. Under the same optical power of the light transmitter 23, the detection accuracy that the time of flight module 20 can achieve is also high. In one example, the glass made of silica glass is Corning 5 glass.

Please refer to FIG. 6. In some embodiments, an anti-reflection film 33 is provided on at least one of the light incident surface and the light emitting surface of the light emitting lens 31 (see FIG. 6 a). An anti-reflection coating 33 may also be provided on at least one of the light incident surface and the light emitting surface of the light incident lens 32 (see FIG. 6b). The anti-reflection film 33 can further improve the transmittance of the optical signal when passing through the light-exiting lens 31 or the light-entering lens 32, reduce the loss of the optical signal, and improve the detection accuracy. In one example, after the anti-reflection coating 33 is provided on the light incident surface or the light emitting surface of the light emitting lens 31, the light transmitting lens 31 can transmit infrared light at a rate of 95% or more.

Please refer to FIG. 2. In some embodiments, the mobile terminal 1000 further includes a dual camera module 400. The dual camera module 400 includes a main camera 401 and a sub camera 402. The centers of the light receiver 24, the light transmitter 23, the main camera 401 and the sub camera 402 are located on the same straight line Z. It should be noted that the center refers to the front view when the time-of-flight module 20 and the dual camera module 400 are installed on the casing 200 (front view in the direction in which the front of the mobile terminal 1000 points to the back, or front view in the direction in which the back points to the front) ) The position of the geometric center of each element in the time-of-flight module 20 and the dual-camera module 400, for example, when the center of the light receiver 24 is facing the light receiver 24, the geometric center of the light receiver 24. The straight line Z may be parallel to the top wall 202 of the cabinet 200, or the straight line Z may be parallel to the side wall 203 of the cabinet 200. When the centers of the light receiver 24, the light transmitter 23, the main camera 401, and the sub camera 402 are located on the same straight line Z, the width of the whole formed by the time-of-flight module 20 and the dual camera module 400 in a direction perpendicular to the straight line Z Smaller, making the overall structure more compact and more beautiful. The centers of the light receiver 24, the light transmitter 23, the main camera 401, and the sub camera 402 may be arranged in order, or may be arranged in other orders, which is not limited herein.

Specifically, the main camera 401 and the sub camera 402 may both be color cameras, for example, one is a telephoto camera, and the other is a wide-angle camera; the main camera 401 and the sub camera 402 may be one color camera, and the other is a black and white camera; the main camera One of the 401 and the sub-camera 402 may be a color camera, and the other is an infrared camera; the main camera 401 and the sub-camera 402 may also be infrared cameras. Of course, the types of the main camera 401 and the sub camera 402 are not limited to the above examples.

The following describes the time-of-flight module 20 and related structures by way of example.

Referring to FIGS. 3 and 4, the time-of-flight module 20 further includes a first substrate assembly 21, and the light transmitter 23 and the light receiver 24 are disposed on the first substrate assembly 21. The first substrate assembly 21 is mounted on the cabinet 200.

Specifically, the mobile terminal 1000 further includes a motherboard 600, and the motherboard 600 is mounted on the casing 200. In the example shown in FIG. 3, the main board 600 is provided with a through hole 601, and the first substrate assembly 21 is mounted on the main board 600 and accommodated in the through hole 601. At this time, the time-of-flight module 20 can be installed on a frame (not shown). Usually, the time-of-flight module 20 and the frame are passed through the perforation 601 together, and the frame is fixed on the main board 600. In the example shown in FIG. 4, the first substrate 21 is carried on the motherboard 600.

The case 200 may be any one of a front case, a rear case, and a middle frame of the mobile terminal 1000. Correspondingly, when the case 200 is the front case or the middle frame of the mobile terminal 1000, the cover 300 may be the rear case of the mobile terminal 1000; when the case 200 is the back or middle frame of the mobile terminal 1000, the cover 300 It may be a front case of the mobile terminal 1000.

In one example, please refer to FIGS. 7 to 10. The time-of-flight module 20 includes a first substrate assembly 21, a spacer 22, a light transmitter 23 and a light receiver 24. The first substrate assembly 21 includes a first substrate 211 and a flexible circuit board 212 connected to each other. The spacer 22 is disposed on the first substrate 211. The light transmitter 23 is configured to emit an optical signal outward. The light transmitter 23 is disposed on the cushion block 22. The flexible circuit board 212 is bent and one end of the flexible circuit board 212 is connected to the first substrate 211 and the other end is connected to the light emitter 23. The light receiver 24 is disposed on the first substrate 211. The light receiver 24 is configured to receive the light signal emitted by the reflected light transmitter 23. The light receiver 24 includes a casing 241 and an optical element disposed on the casing 241. 242. The housing 241 is connected with the cushion block 22 as a whole.

Specifically, the first substrate assembly 21 includes a first substrate 211 and a flexible circuit board 212. The first substrate 211 may be a printed circuit board or a flexible circuit board. The control circuit of the time of flight module 20 may be laid on the first substrate 211. One end of the flexible circuit board 212 can be connected to the first substrate 211, and the flexible circuit board 212 can be bent at a certain angle, so that the relative positions of the devices connected at both ends of the flexible circuit board 212 can be selected.

Referring to FIG. 7 and FIG. 11, the pad 22 is disposed on the first substrate 211. In one example, the pad 22 is in contact with the first substrate 211 and is carried on the first substrate 211. Specifically, the pad 22 may be combined with the first substrate 211 by means of adhesion or the like. The material of the spacer 22 may be metal, plastic, or the like. In the embodiment of the present application, a surface where the pad 22 is combined with the first substrate 211 may be a flat surface, and a surface opposite to the combined surface of the pad 22 may also be a flat surface, so that when the light emitter 23 is disposed on the pad 22 Has better stability.

The optical transmitter 23 is used to emit an optical signal outward, and the optical signal is emitted from the optical transmitter 23 at a certain divergence angle. The light transmitter 23 is disposed on the spacer 22. In the embodiment of the present application, the light transmitter 23 is disposed on the side of the spacer 22 opposite to the first substrate 211, or in other words, the spacer 22 connects the first substrate 211. The light emitter 23 is spaced apart from the light emitter 23 so that a height difference is formed between the light emitter 23 and the first substrate 211. The light transmitter 23 is also connected to the flexible circuit board 212. The flexible circuit board 212 is bent, one end of the flexible circuit board 212 is connected to the first substrate 211, and the other end is connected to the light transmitter 23, so that the control signal of the light transmitter 23 is switched from The first substrate 211 is transmitted to the light transmitter 23, or a feedback signal of the light transmitter 23 (for example, time information, frequency information of the light signal emitted by the light transmitter 23, temperature information of the light transmitter 23, etc.) is transmitted to the first Substrate 211.

Please refer to FIG. 7, FIG. 8 and FIG. 10. The optical receiver 24 is configured to receive an optical signal emitted by the reflected optical transmitter 23. The light receiver 24 is disposed on the first substrate 211, and the contact surface between the light receiver 24 and the first substrate 211 is substantially flush with the contact surface between the pad 22 and the first substrate 211 (that is, the installation starting point of the two is On the same plane). Specifically, the light receiver 24 includes a housing 241 and an optical element 242. The casing 241 is disposed on the first substrate 211, and the optical element 242 is disposed on the casing 241. The casing 241 may be a lens holder and a lens barrel of the light receiver 24, and the optical element 242 may be a lens disposed in the casing 241. And other components. Further, the light receiver 24 may further include a photosensitive chip (not shown). The optical signal reflected by the measured object is irradiated into the photosensitive chip through the optical element 242, and the photosensitive chip responds to the optical signal. In the embodiment of the present application, the housing 241 and the cushion block 22 are integrally connected. Specifically, the housing 241 and the spacer 22 may be integrally formed, and the housing 241 and the spacer 22 may be mounted on the first substrate 211 together for easy installation. For example, the housing 241 and the spacer 22 are made of the same material and are injection-molded. Integrated cutting, cutting, etc .; or the materials of the housing 241 and the pad 22 are different, and the two are integrated through two-color injection molding. The housing 241 and the spacer 22 may also be separately formed, and the two form a matching structure. When assembling the time-of-flight module 20, the housing 241 and the spacer 22 may be connected into one body, and then jointly disposed on the first substrate 211. It is also possible to firstly arrange one of the housing 241 and the pad 22 on the first substrate 211, and then arrange the other on the first substrate 211 and connect them as a whole.

In the mobile terminal 1000 according to the embodiment of the present application, since the light emitter 23 is disposed on the pad 22, the pad 22 can raise the height of the light emitter 23, thereby increasing the height of the exit surface of the light emitter 23, The emitted light signal is not easily blocked by the light receiver 24, so that the light signal can be completely irradiated on the measured object. The exit surface of the light transmitter 23 may be flush with the entrance surface of the light receiver 24, or the exit surface of the light transmitter 23 may be slightly lower than the entrance surface of the light receiver 24, or it may be the exit surface of the light transmitter 23 Slightly higher than the incident surface of the light receiver 24.

Please refer to FIGS. 9 and 11. In some embodiments, the first substrate assembly 21 further includes a reinforcing plate 213. The reinforcing plate 213 is coupled to a side of the first substrate 211 opposite to the pad 22. The reinforcing plate 213 may cover one side of the first substrate 211, and the reinforcing plate 213 may be used to increase the strength of the first substrate 211 and prevent deformation of the first substrate 211. In addition, the reinforcing plate 213 may be made of a conductive material, such as a metal or an alloy. When the time-of-flight module 20 is installed on the mobile terminal 1000, the reinforcing plate 213 and the casing 200 may be electrically connected to make the reinforcing plate 213. Grounding and effectively reducing the interference of static electricity from external components on the time of flight module 20.

Please refer to FIGS. 11 to 13. In some embodiments, the cushion block 22 includes a protruding portion 225 protruding from the side edge 2111 of the first substrate 211, and the flexible circuit board 212 is bent around the protruding portion 225. Specifically, a part of the cushion block 22 is directly carried on the first substrate 211, and another part is not in direct contact with the first substrate 211, and protrudes to form a protruding portion 225 with respect to the side edge 2111 of the first substrate 211. The flexible circuit board 212 may be connected to the side edge 2111, and the flexible circuit board 212 is bent around the protrusion 225, or the flexible circuit board 212 is bent so that the protrusion 225 is located in a space surrounded by the flexible circuit board 212. Inside, when the flexible circuit board 212 is subjected to an external force, the flexible circuit board 212 will not collapse inward and cause excessive bending, which will cause damage to the flexible circuit board 212.

Further, as shown in FIG. 12, in some embodiments, the outer surface 2251 of the protruding portion 225 is a smooth curved surface (for example, the outer surface of a cylinder, etc.), that is, the outer surface 2251 of the protruding portion 225 does not form a curvature. Suddenly, even if the flexible circuit board 212 is bent over the outer side 2251 of the protruding portion 225, the degree of bending of the flexible circuit board 212 will not be too large, which further ensures the integrity of the flexible circuit board 212.

Please refer to FIGS. 7 to 9. In some embodiments, the time-of-flight module 20 further includes a connector 26 connected to the first substrate 211. The connector 26 is used to connect the first substrate assembly 21 and an external device. The connector 26 and the flexible circuit board 212 are respectively connected to opposite ends of the first substrate 211. The connector 26 may be a connection base or a connector. When the time-of-flight module 20 is installed in the casing 200, the connector 26 may be connected to the main board of the mobile terminal 1000 so that the time-of-flight module 20 is electrically connected to the main board. The connector 26 and the flexible circuit board 212 are respectively connected to opposite ends of the first substrate 211. For example, the connectors 26 and the flexible circuit board 212 may be respectively connected to the left and right ends of the first substrate 211, or respectively connected to the front and rear ends of the first substrate 211.

Please refer to FIG. 8 and FIG. 9. In some embodiments, the light transmitter 23 and the light receiver 24 are arranged along a straight line L, and the connector 26 and the flexible circuit board 212 are located on opposite sides of the straight line L, respectively. It can be understood that, since the light transmitter 23 and the light receiver 24 are arranged in an array, the size of the time-of-flight module 20 may be larger in the direction of the straight line L. The connector 26 and the flexible circuit board 212 are respectively disposed on opposite sides of the straight line L, which will not increase the size of the time-of-flight module 20 in the direction of the straight line L, thereby facilitating the installation of the time-of-flight module 20 on the mobile terminal 1000. On the chassis 200.

Please refer to FIGS. 11 and 12. In some embodiments, a receiving cavity 223 is defined on a side where the cushion block 22 is combined with the first substrate 211. The time-of-flight module 20 further includes an electronic component 25 disposed on the first substrate 211, and the electronic component 25 is contained in the receiving cavity 223. The electronic component 25 may be an element such as a capacitor, an inductor, a transistor, a resistor, etc. The electronic component 25 may be electrically connected to a control line laid on the first substrate 211 and used to drive or control the operation of the light transmitter 23 or the light receiver 24. The electronic component 25 is contained in the containing cavity 223, and the space in the cushion block 22 is used reasonably. It is not necessary to increase the width of the first substrate 211 to set the electronic component 25, which is beneficial to reducing the overall size of the time-of-flight module 20. The number of the receiving cavities 223 may be one or more, and the plurality of receiving cavities 223 may be spaced apart from each other. When the pad 22 is installed, the positions of the receiving cavity 223 and the electronic component 25 may be aligned and the pad 22 may be disposed at On the first substrate 211.

Please refer to FIG. 11 and FIG. 13. In some embodiments, the cushion block 22 is provided with an avoiding through hole 224 communicating with at least one receiving cavity 223, and at least one electronic component 25 extends into the avoiding through hole 224. It can be understood that when the electronic component 25 needs to be contained in the containing cavity 223, the height of the electronic component 25 is required to be not higher than the height of the containing cavity 223. For the electronic component 25 having a height higher than the receiving cavity 223, an avoiding through hole 224 corresponding to the receiving cavity 223 may be provided, and the electronic component 25 may partially extend into the avoiding through hole 224, so as not to increase the height of the spacer 22 The electronic component 25 is arranged.

Referring to FIG. 11, in some embodiments, the light emitter 23 includes a second substrate assembly 231, a light source assembly 232, and a housing 233. The second substrate assembly 231 is disposed on the pad 22, and the second substrate assembly 231 is connected to the flexible circuit board 212. The light source assembly 232 is disposed on the second substrate assembly 231, and the light source assembly 232 is configured to emit a light signal. The casing 233 is disposed on the second substrate assembly 231. The casing 233 is formed with a receiving space 2331. The receiving space 2331 can be used for receiving the light source module 232. The flexible circuit board 212 may be detachably connected to the second substrate assembly 231. The light source assembly 232 is electrically connected to the second substrate assembly 231. The casing 233 may be bowl-shaped as a whole, and the opening of the casing 233 is disposed on the second substrate assembly 231 downwardly, so as to receive the light source assembly 232 in the accommodation space 2331. In the embodiment of the present application, a light outlet 2332 corresponding to the light source component 232 is provided on the housing 233. The optical signal emitted from the light source component 232 passes through the light outlet 2332 and is emitted. The light signal can pass directly through the light outlet 2332. It can also pass through the optical outlet 2332 after changing the optical path through other optical devices.

Please continue to refer to FIG. 11. In some embodiments, the second substrate assembly 231 includes a second substrate 2311 and a reinforcing member 2312. The second substrate 2311 is connected to the flexible circuit board 212. The light source assembly 232 and the reinforcing member 2312 are disposed on opposite sides of the second substrate 2311. A specific type of the second substrate 2311 may be a printed circuit board or a flexible circuit board, and a control circuit may be laid on the second substrate 2311. The reinforcing member 2312 may be fixedly connected to the second substrate 2311 by means of gluing, riveting, or the like. The reinforcing member 2312 may increase the overall strength of the second substrate assembly 231. When the light emitter 23 is disposed on the spacer 22, the reinforcing member 2312 can directly contact the spacer 22, the second substrate 2311 is not exposed to the outside, and does not need to be in direct contact with the spacer 22, and the second substrate 2311 is not easily affected. Contamination by dust, etc.

In the embodiment shown in FIG. 11, the reinforcing member 2312 and the cushion block 22 are formed separately. When assembling the time-of-flight module 20, the spacer 22 may be first mounted on the first substrate 211. At this time, two ends of the flexible circuit board 212 are respectively connected to the first substrate 211 and the second substrate 2311, and the flexible circuit board 212 may Do not bend first (state shown in Figure 12). The flexible circuit board 212 is then bent, so that the reinforcing member 2312 is disposed on the cushion block 22.

Of course, in other embodiments, the reinforcing member 2312 and the spacer 22 may be integrally formed, for example, integrally formed by a process such as injection molding. When assembling the time-of-flight module 20, the spacer 22 and the light emitter 23 may be installed together. On the first substrate 211.

Referring to FIG. 13, in some embodiments, a first positioning member 2313 is formed on the reinforcing member 2312. The cushion block 22 includes a body 221 and a second positioning member 222. The second positioning member 222 is formed on the body 221. When the second substrate assembly 231 is disposed on the cushion block 22, the first positioning member 2313 cooperates with the second positioning member 222. Specifically, after the first positioning member 2313 cooperates with the second positioning member 222, the relative movement between the second substrate assembly 231 and the cushion block 22 can be effectively restricted. The specific types of the first positioning member 2313 and the second positioning member 222 can be selected according to needs. For example, the first positioning member 2313 is a positioning hole formed in the reinforcing member 2312, and the second positioning member 222 is a positioning column. Protrude into the positioning hole so that the first positioning member 2313 and the second positioning member 222 cooperate with each other; or the first positioning member 2313 is a positioning column formed on the reinforcing member 2312, and the second positioning member 222 is a positioning hole and the positioning column Project into the positioning hole so that the first positioning member 2313 and the second positioning member 222 cooperate with each other; or the number of the first positioning member 2313 and the second positioning member 222 are multiple, and part of the first positioning member 2313 is a positioning hole, Part of the second positioning member 222 is a positioning column, part of the first positioning member 2313 is a positioning column, and part of the second positioning member 222 is a positioning hole. The positioning column projects into the positioning hole so that the first positioning member 2313 and the second positioning member 222 work cooperatively.

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

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, for example, two, three, unless specifically defined otherwise.

Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application. Those skilled in the art may, within the scope of the present application, understand the above. The embodiments are subject to change, modification, replacement, and modification, and the scope of the present application is defined by the claims and their equivalents.

Claims

A time-of-flight component, comprising:

Time-of-flight module, the time-of-flight module includes a light transmitter and a light receiver;

A bracket, which is provided with a light emitting hole corresponding to the light transmitter and a light receiving hole corresponding to the light receiver; and

A lens group mounted on the bracket, the lens group covers the light exit hole and the light entrance hole, and an infrared transmission layer is formed on the lens group.
The time-of-flight component according to claim 1, wherein the infrared transmission layer comprises an infrared transmission ink and / or an infrared transmission film.
The time-of-flight assembly according to claim 1, wherein the bracket comprises a body and a spacer, the light emitting hole and the light incident hole are opened on the body, and the lens group comprises a light emitting lens and an incident lens. The light emitting lens covers the light emitting hole, the light incident lens covers the light incident hole, and the spacer separates the light emitting lens and the light incident lens.
The time-of-flight assembly according to claim 3, wherein the spacer and the body together form at least two receiving slots spaced apart from each other, and the light-exiting lens and the light-entering lens are disposed in different places. Said inside the receiving tank.
The time-of-flight assembly according to claim 3, wherein the spacer and the body are an integrally formed structure; or the spacer and the body are a separately formed structure, and the spacer is connected to the On the body.
The time-of-flight component according to claim 4 or 5, wherein a height of the spacer is greater than or equal to a thickness of the light-emitting lens and / or a thickness of the light-emitting lens.
The time-of-flight component according to claim 3, wherein the light emitting lens is embedded on an inner wall of the light emitting hole; and / or

The light incident lens is embedded on an inner wall of the light incident hole.
The time-of-flight component according to claim 3, wherein the bracket further comprises a partition wall extending from the body to the time-of-flight module, and the partition wall surrounds the light emitter and the light receiver.
The time-of-flight component according to claim 3, wherein the light emitting lens is made of silica glass material; and / or

The light incident lens is made of silica glass.
The time-of-flight component according to claim 3, wherein an anti-reflection coating is provided on at least one of a light incident surface and a light emitting surface of the light emitting lens; and / or

An antireflection coating is provided on at least one of a light incident surface and a light emitting surface of the light incident lens.
A mobile terminal is characterized by including a cover body and a time-of-flight component. The cover body is provided with a through hole, the time-of-flight component corresponds to the through-hole, and the time-of-flight component includes:

Time-of-flight module, the time-of-flight module includes a light transmitter and a light receiver;

A bracket, which is provided with a light emitting hole corresponding to the light transmitter and a light receiving hole corresponding to the light receiver; and

A lens group mounted on the bracket, the lens group covers the light exit hole and the light entrance hole, and an infrared transmission layer is formed on the lens group.
The mobile terminal according to claim 11, wherein the infrared transmitting layer comprises an infrared transmitting ink and / or an infrared transmitting film.
The mobile terminal according to claim 11, wherein the bracket comprises a body and a spacer, the light emitting hole and the light incident hole are opened on the body, and the lens group comprises a light emitting lens and a light incident A lens, the light emitting lens covers the light emitting hole, the light incident lens covers the light incident hole, and the spacer separates the light emitting lens and the light incident lens.
The mobile terminal according to claim 13, wherein the spacer and the body jointly surround at least two receiving slots spaced apart from each other, and the light-exiting lens and the light-entering lens are disposed in different of the receiving slots. Containment tank.
The mobile terminal according to claim 13, wherein the spacer and the body are an integrally formed structure; or the spacer and the body are a separately formed structure, and the spacer is connected to the On the body.
The mobile terminal according to claim 14 or 15, wherein a height of the spacer is greater than or equal to a thickness of the light emitting lens and / or a thickness of the light incident lens.
The mobile terminal according to claim 13, wherein the light emitting lens is embedded on an inner wall of the light emitting hole; and / or

The light incident lens is embedded on an inner wall of the light incident hole.
The mobile terminal according to claim 13, wherein the bracket further comprises a partition wall extending from the body to the time-of-flight module, and the partition wall surrounds the light transmitter and the light receiving Device.
The mobile terminal according to claim 13, wherein the light emitting lens is made of silica glass material; and / or

The light incident lens is made of silica glass.
The mobile terminal according to claim 13, wherein at least one of a light incident surface and a light emitting surface of the light emitting lens is provided with an antireflection coating; and / or

An antireflection coating is provided on at least one of a light incident surface and a light emitting surface of the light incident lens.
The mobile terminal according to claim 11, wherein the mobile terminal further comprises a casing, which is combined with the cover to form a receiving space, and the through hole communicates with the receiving space, The time-of-flight module further includes a first substrate assembly, the light transmitter and the light receiver are disposed on the first substrate assembly, and the light transmitter and the light receiver are installed in the receiving space. And exposed from the through hole, the first substrate assembly is mounted on the casing.
The mobile terminal according to claim 21, wherein the mobile terminal further comprises a motherboard, and the motherboard is mounted on the casing,

The first substrate assembly is carried on the motherboard; or

The main board is provided with a perforation, and the first substrate assembly is installed on the main board and accommodated in the perforation.
The mobile terminal according to claim 21 or 22, wherein the casing is any one of a front case, a rear case, and a middle frame of the mobile terminal.
The mobile terminal according to claim 11, wherein the bracket and the cover are an integrally formed structure.
The mobile terminal according to claim 11, wherein the mobile terminal further comprises a dual camera module, the dual camera module includes a main camera and a sub camera, the light receiver, the light transmitter, The centers of the main camera and the sub camera are located on the same straight line.