Sensor assembly and terminal device

Abstract

The present disclosure relates to a sensor assembly and a terminal device. The sensor assembly comprises a sensor and a light guide member that guides light emitted or received by the sensor, the light guide member comprising a body and an inclined light inlet portion and / or an inclined light outlet portion. The light inlet portion and the light outlet portion are inclined relative to the body and are spaced apart from the frame of the screen, so that the black border of the screen is not restricted by the width of the light guide member, and the width of the black border of the screen can be reduced, thereby improving the screen-to-body ratio of the screen.

Description

Technical Field

[0001] This disclosure relates to the field of mobile terminal technology, and in particular to a sensor component and terminal device. Background Technology

[0002] Currently, people are pursuing full-screen terminal devices. The higher the screen-to-body ratio, the more popular the device is. The screen-to-body ratio of a terminal device is mainly reflected in the top and bottom black borders of the screen. The smaller the black borders, the higher the screen-to-body ratio.

[0003] In related technologies, terminal devices are generally designed with functions such as distance sensing, infrared sensing, and light sensing. Taking distance sensing as an example, when a user answers a call or puts the terminal device in their pocket, the sensor can detect that the terminal device is close to the user's face or clothing and turn off the screen's touch function. This prevents accidental touches, so distance sensing is an essential function for terminal devices.

[0004] Proximity sensors are typically designed at the top of the screen. The sensor needs to emit and receive infrared light through the screen to determine the distance. In order to accommodate the sensor, the black border at the top of the screen is usually quite wide. This distance-sensing design directly limits the width of the black border on the screen, thereby limiting the screen-to-body ratio of the terminal device. Summary of the Invention

[0005] To overcome the problems existing in related technologies, this disclosure provides a sensor component and a terminal device.

[0006] According to a first aspect of the present disclosure, a sensor assembly is provided, comprising: a sensor; and a light guide member, the light guide member guiding light emitted or received by the sensor, the light guide member comprising: a body; an incident light portion and / or an exit light portion, the incident light portion and / or the exit light portion being disposed at an angle relative to the body.

[0007] In some embodiments, the light-incident portion has a first mirror aperture at one end away from the body, the first mirror aperture being perpendicular to the propagation direction of light in the light-incident portion; the light guide further includes a light-incident reflector, the light-incident reflector being disposed within the first mirror aperture.

[0008] In some embodiments, the light-emitting portion has a second mirror hole at one end away from the body, and the second mirror hole is perpendicular to the propagation direction of light in the light-emitting portion; the light guide further includes a light-emitting reflector, which is disposed in the second mirror hole.

[0009] In some embodiments, the incident light reflector includes a first refracting surface and a second refracting surface, with a first angle formed between the first refracting surface and the second refracting surface; and / or, the exiting light reflector includes a third refracting surface and a fourth refracting surface, with a second angle formed between the third refracting surface and the fourth refracting surface.

[0010] In some embodiments, the body is provided with a receiving groove, and the sensor is received in the receiving groove; the first end of the light-incident part is obliquely connected to the body, and the second end of the light-incident part is provided with a light-incident surface; the first end of the light-emitting part is obliquely connected to the body, and the second end of the light-emitting part is provided with a light-emitting surface.

[0011] In some embodiments, the receiving groove is provided with a light-transmitting surface, and the light-transmitting surface is provided with a first light-transmitting hole and a second light-transmitting hole; the sensor is provided with a transmitting end and a receiving end, the receiving end corresponds to the first light-transmitting hole, and the transmitting end corresponds to the second light-transmitting hole.

[0012] In some embodiments, reflective material is provided at one or more of the following locations: the outer wall of the body is provided with the reflective material; the inner wall of the receiving groove of the body is provided with the reflective material except for the first light-transmitting hole and the second light-transmitting hole; the outer wall of the light-incident portion is provided with the reflective material except for the light-incident surface; the inner wall of the first mirror hole of the light-incident portion is provided with the reflective material except for the locations corresponding to the first refractive surface and the second refractive surface; the outer wall of the light-emitting portion is provided with the reflective material except for the light-emitting surface; the inner wall of the second mirror hole of the light-emitting portion is provided with the reflective material except for the locations corresponding to the third refractive surface and the fourth refractive surface.

[0013] In some embodiments, the body of the light guide is further provided with a first sealing rib, which surrounds the receiving groove.

[0014] In some embodiments, the light-incident portion and the light-exit portion are arranged side by side and spaced apart on the same side of the body.

[0015] In some embodiments, the sensor assembly further includes a support portion sleeved on the outside of the light guide.

[0016] In some embodiments, the inner and / or outer surfaces of the support are provided with a black opaque material.

[0017] According to a second aspect of the present disclosure, a terminal device is provided, comprising: a mid-frame, a screen trim, and a sensor assembly as described in the first aspect; wherein at least one of the light-incident portion and the light-excising portion of the sensor assembly is inserted into the mid-frame or the screen trim.

[0018] In some embodiments, the middle frame is provided with a first mounting hole; the screen decorative component is fixed to one side of the middle frame, and the screen decorative component is provided with a second mounting hole and a third mounting hole that penetrate the screen decorative component and communicate with the first mounting hole; wherein, the body of the light guide is disposed in the first mounting hole, the light-incident portion of the light guide is disposed in the second mounting hole, and the light-emitting portion of the light guide is disposed in the third mounting hole.

[0019] In some embodiments, the terminal device further includes a screen assembly; the screen decorative element is further provided with a mounting groove, and the screen assembly is fixed in the mounting groove by a first adhesive; wherein the first mounting hole, the second mounting hole and the third mounting hole are spaced apart from the mounting groove and are not connected, so that the path of the light emitted or received by the sensor does not overlap with the screen assembly.

[0020] In some embodiments, the terminal device further includes: a flexible circuit board fixed to the mid-frame by a second adhesive and electrically connected to the sensor; a motherboard electrically connected to the flexible circuit board; and a clamping member disposed between the flexible circuit board and the motherboard, wherein a first side of the clamping member is fixed to the motherboard by a third adhesive, and a second side of the clamping member is pressed against the flexible circuit board.

[0021] In some embodiments, the first surface of the clamping member is provided with a second sealing rib; and / or the second surface of the clamping member is provided with a second sealing rib.

[0022] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0023] The light guide component disclosed herein has its light-inlet and light-outlet portions angled relative to the main body, ensuring that the light guide component does not intersect with the screen's border. This prevents the light guide component from occupying the screen's border, thus freeing the screen's black border from being limited by the width of the light guide component. This reduces the width of the black border on the terminal device's screen, thereby increasing the screen-to-body ratio.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0026] Figure 1 This is an exploded view of a terminal device according to an exemplary embodiment.

[0027] Figure 2This is a cross-sectional view of a partial structure of a terminal device according to an exemplary embodiment.

[0028] Figure 3 This is a three-dimensional structural schematic diagram of a light guide according to an exemplary embodiment.

[0029] Figure 4 This is a three-dimensional structural schematic diagram of a light guide element from another perspective, according to an exemplary embodiment.

[0030] Figure 5 This is a three-dimensional structural schematic diagram of a light guide element from another perspective, according to an exemplary embodiment.

[0031] Figure 6 This is a cross-sectional view illustrating a combination of a mid-frame and a screen trim according to an exemplary embodiment.

[0032] Figure 7 This is a schematic diagram illustrating a combination of a mid-frame and a screen decorative element according to an exemplary embodiment.

[0033] Figure 8 This is a structural diagram illustrating a mid-frame, screen trim, and screen assembly according to an exemplary embodiment.

[0034] Figure 9 This is a block diagram illustrating an apparatus according to an exemplary embodiment. Detailed Implementation

[0035] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0036] In related technologies, sensors often need to perceive ambient light outside the terminal device through the screen, resulting in relatively wide black borders on the screen due to the presence of sensors. The width of these black borders affects the screen-to-body ratio, which directly impacts user experience and product aesthetics. In this field, the problem of wide black borders and a small overall screen-to-body ratio caused by the presence of sensors has remained unresolved.

[0037] To solve the above-mentioned technical problems, this disclosure provides a sensor component 40, which is applied to a terminal device 100. The following will use a mobile phone as the terminal device 100 for detailed description. Figure 1 This is an exploded view of a terminal device 100 according to an exemplary embodiment. Figure 2 This is a cross-sectional view of a partial structure of a terminal device 100 according to an exemplary embodiment.

[0038] like Figure 1 and Figure 2 As shown, the terminal device 100, through the sensor component 40 disclosed herein, enables the terminal device 100 to not only realize functions such as distance sensing and infrared, but also to narrow the black border width of the screen and increase the screen ratio.

[0039] In some embodiments, the sensor assembly 40 includes a sensor 41 and a light guide 42. The side of the sensor 41 that receives and emits light is a photosensitive surface, and the light guide 42 guides the light emitted or received by the sensor 41. The light guide 42 includes a body 421, a light-incident portion 422, and / or a light-emitting portion 423, wherein the light-incident portion 422 and / or the light-emitting portion 423 are disposed at an angle relative to the body 421.

[0040] The sensor 41 can be a light sensor, such as a proximity sensor, an infrared sensor, or a light sensor. In this embodiment, the sensor 41 is described as a proximity sensor. Furthermore, the proximity sensor used on a mobile phone is usually an infrared proximity sensor, which has a transmitting end and a receiving end on its photosensitive surface. The transmitting end is equipped with an infrared emitting tube, and the receiving end is equipped with an infrared receiving tube. When the infrared light emitted by the emitting tube is received by the receiving tube, it indicates that the distance is close and the screen needs to be turned off to avoid accidental operation. When the receiving tube does not receive the infrared light emitted by the emitting tube, it indicates that the distance is far and the screen does not need to be turned off.

[0041] Specifically, the first end of the light-incident section 422 and the first end of the light-emitting section 423 can be inclined to the body 421, and the second end of the light-incident section 422 and the second end of the light-emitting section 423 extend to the surface of the terminal device 100.

[0042] Infrared rays emitted by the infrared emitting tube enter the light emitting section 423 from the first end of the light emitting section 423 and are directly emitted to the outside of the terminal device 100 from the second end of the light emitting section 423; infrared rays outside the terminal device 100 enter the light receiving section 422 from the second end of the light receiving section 422 and are transmitted to the infrared receiving tube from the first end of the light receiving section 422.

[0043] As can be seen from the above structure, the light guide 42 provided in this disclosure, with its light-incident portion 422 and light-exit portion 423 inclined to the body 421, allows the light-incident portion 422 and light-exit portion 423 to extend along the direction inclined to the screen of the terminal device 100. The light path received by the light-incident portion 422 and the light path emitted by the light-exit portion 423 are spaced apart from the screen border and do not overlap or intersect with the screen. The light-incident portion 422 and light-exit portion 423 do not occupy the black border of the screen, so the black border of the screen is not restricted by the width of the light guide 42, and the width of the black border of the screen of the terminal device 100 can be reduced to improve the screen ratio. In addition, the second end of the light-incident portion 422 and the second end of the light-exit portion 423 are in direct contact with the outside of the terminal device 100. The infrared light emitted or received by the distance sensor does not need to pass through the screen, thereby avoiding the loss of infrared optical energy during the emission and reception of infrared light, improving the distance sensing function of the infrared distance sensor, and improving the measurement accuracy of the infrared distance sensor.

[0044] In some embodiments, such as Figure 4 As shown, the light-incident section 422 is further provided with a first mirror aperture 4222, which is located at the second end of the light-incident section 422 and is perpendicular to the direction of light propagation in the light-incident section 422. The light-exiting section 423 is further provided with a second mirror aperture 4232, which is located at the second end of the light-exiting section 423 and is perpendicular to the direction of light propagation in the light-exiting section 423.

[0045] The light guide 42 also includes an entrance light reflector 424 and an exit light reflector 425. The entrance light reflector 424 is disposed in the first mirror hole 4222, and the exit light reflector 425 is disposed in the second mirror hole 4232.

[0046] In some embodiments, such as Figure 5 As shown, the light-incident mirror 424 includes a first refractive surface 42221 and a second refractive surface 42222, with a first included angle between the first refractive surface 42221 and the second refractive surface 42222; the light-outcident mirror 425 is provided with a third refractive surface 42321 and a fourth refractive surface 42322, with a second included angle between the third refractive surface 42321 and the fourth refractive surface 42322.

[0047] Specifically, in this embodiment, since the photosensitive surface of the distance sensor is not parallel to the light-emitting surface 4231 and the light-incident surface 4221 of the light guide 42, in order to allow the infrared light emitted by the distance sensor to be emitted perpendicularly to the screen, or to allow the infrared light perpendicular to the screen to enter in order to achieve the best distance sensing function, an incident light reflector 424 and an exit light reflector 425 are respectively installed inside the light-incident part 422 and the light-emitting part 423.

[0048] The light-incident mirror 424 and the light-outcident mirror 425 utilize the principle of a prism to refract the infrared rays emitted by the distance sensor through the light-outcident mirror 425. This allows the infrared rays to be perpendicular to the screen or the photosensitive surface of the distance sensor, or perpendicular to the screen of the terminal device 100. After entering the light guide 42, the infrared rays are refracted by the light-incident mirror 424, which can increase the angle range of the light received by the receiving end of the distance sensor.

[0049] Furthermore, the angles of the first and second included angles can be adjusted to change the position of the prism in the distance sensor light guide 42 based on the angles between the photosensitive surface of the distance sensor and the light-incident portion 422 and the light-emitting portion 423. In this embodiment, the range of the first and second included angles is 55° to 65°. Therefore, the overlap between the centers of the light-incident surface 4221 and the light-emitting surface 4231 and the receiving and transmitting ends of the distance sensor, respectively, can be greatly improved.

[0050] Figure 3 , Figure 4 and Figure 5 These are three-dimensional structural schematic diagrams of a light guide 42 from three perspectives, according to an exemplary embodiment. In some embodiments, such as... Figures 3 to 5 As shown, the light-incident part 422 and the light-exit part 423 are obliquely connected to the main body 421, and respectively correspond to the receiving end and the transmitting end of the distance sensor.

[0051] Specifically, the main body 421 is provided with a receiving groove 4211, in which the distance sensor is received. The inner wall of the receiving groove 4211 abuts against the outer wall of the distance sensor, thereby restricting the movement and shaking of the distance sensor.

[0052] After the terminal device 100 is assembled, a calibration test will be performed. This test will assign a range of distance sensing values ​​to the distance sensor based on the current structural state of the terminal device 100. Following the calibration test, vibration and drop tests will be conducted on the terminal device 100. After these tests, the distance sensing values ​​must not exceed the range specified in the calibration test. Therefore, the light guide 42 and the distance sensor must be relatively stable, and there should be no significant movement or loosening between them.

[0053] By setting up the receiving groove 4211 and making the inner wall of the receiving groove 4211 directly abut against the outer wall of the distance sensor, the position of the light guide 42 and the distance sensor is limited, thereby restricting the position and movement range of the distance sensor and avoiding the impact on the accuracy of the distance sensor measurement due to the shaking or movement of the light guide 42 during drop tests or vibration tests.

[0054] In addition, the receiving groove 4211 can also serve as a positioning device. When assembling the distance sensor, the distance sensor is first spot-welded onto the flexible circuit board 50, and the distance sensor is positioned using the receiving groove 4211. The distance sensor directly abuts against the inner wall of the receiving groove 4211, reducing the assembly tolerance between the distance sensor and the receiving groove 4211. Moreover, the distance sensor can be quickly and accurately installed in the receiving groove 4211, avoiding the need to constantly adjust the relative installation position of the distance sensor and the light guide 42 during assembly, thus improving assembly efficiency.

[0055] Furthermore, the first end of the light-incident section 422 is connected to the main body 421, and the second end of the light-incident section 422 is provided with a light-incident surface 4221, which is flush with the outer surface of the terminal device 100; the first end of the light-emitting section 423 is also connected to the main body 421, and the second end of the light-emitting section 423 is provided with a light-emitting surface 4231, which is flush with the outer surface of the terminal device 100.

[0056] Specifically, infrared rays from outside the terminal device 100 enter the light-receiving section 422 through the light-receiving surface 4221, and infrared rays emitted by the distance sensor are emitted to the outside of the terminal device 100 through the light-emitting surface 4231. The light-receiving surface 4221 and the light-emitting surface 4231 can be arc-shaped, flat, or wavy. The light-receiving surface 4221 and the light-emitting surface 4231 are flush with the outer wall of the terminal device 100 or match the shape of the outer wall of the terminal device 100, and are not limited here.

[0057] In addition, the light-incident section 422 is directly connected to the outside of the terminal device 100 through the light-incident surface 4221 and the light-emitting section 423 is directly connected to the outside of the terminal device 100 through the light-emitting surface 4231, which can reduce the width of the black border of the screen while ensuring the distance sensing function of the distance sensor.

[0058] In some embodiments, the receiving groove 4211 includes a light-transmitting surface 4212, which is the inner wall of the receiving groove 4211 opposite to the photosensitive surface of the distance sensor. The light-transmitting surface 4212 abuts against the photosensitive surface of the distance sensor and is parallel to the photosensitive surface of the distance sensor. Infrared rays emitted by the infrared emitting tube of the distance sensor enter the light guide 42 through the light-transmitting surface 4212, and the light received by the light guide 42 is transmitted to the infrared receiving tube through the light-transmitting surface 4212.

[0059] It should be noted that the shape of the receiving slot 4211 matches the shape of the distance sensor and is not limited to the square structure shown in the figure.

[0060] Furthermore, the light-transmitting surface 4212 is provided with a first light-transmitting hole and a second light-transmitting hole; the photosensitive surface of the distance sensor is provided with a transmitter and a receiver, the receiver corresponding to the first light-transmitting hole and the transmitter corresponding to the second light-transmitting hole.

[0061] Specifically, as described above, an infrared emitting tube is installed at the transmitting end, and an infrared receiving tube is installed at the receiving end. The infrared light emitted by the infrared emitting tube of the distance sensor, after entering the light-emitting section 423, passes sequentially through the second light-transmitting hole, the light-emitting reflector 425, and the light-emitting surface 4231 before being emitted to the outside of the terminal device 100. The external infrared light then passes sequentially through the light-incident surface 4221, the light-incident reflector 424, and the first light-transmitting hole before being received by the infrared receiving tube.

[0062] Aligning the second light-transmitting hole with the infrared emitting tube allows the infrared light emitted by the distance sensor to be focused and enter the light-emitting portion 423 of the light guide 42 as much as possible through the second light-transmitting hole, and then exit from the light-emitting surface 4231. The first light-transmitting hole allows the infrared light entering the light-receiving portion 422 to be received by the infrared receiving tube as much as possible when the first light-transmitting hole is aligned with the receiving end. Therefore, the first and second light-transmitting holes can improve the sensitivity and distance sensing function of the distance sensor.

[0063] In some embodiments, reflective material is provided at one or more of the following locations: the outer wall of the body 421 is provided with reflective material; the inner wall of the receiving groove 4211 of the body 421 is provided with reflective material except for the first light-transmitting hole and the second light-transmitting hole; the outer wall of the light-incident part 422 is provided with reflective material except for the light-incident surface 4221; the inner wall of the first mirror hole 4222 of the light-incident part 422 is provided with reflective material except for the locations corresponding to the first refractive surface 42221 and the second refractive surface 42222; the outer wall of the light-emitting part 423 is provided with reflective material except for the light-emitting surface 4231; the inner wall of the second mirror hole 4232 of the light-emitting part 423 is provided with reflective material except for the locations corresponding to the third refractive surface 42321 and the fourth refractive surface 42322.

[0064] Specifically, the reflective material can be silver, and a silver plating process can be applied. The outer wall of the main body 421 and the inner wall of the receiving groove 4211, except for the light-transmitting surface 4212 or the inner wall except for the first and second light-transmitting holes, are silver-plated. The outer wall of the light-entry section 422, except for the light-entry surface 4221, and the outer wall of the light-exiting section 423, except for the light-exiting surface 4231, are all silver-plated. The inner wall of the first mirror hole 4222, except for the inner wall corresponding to the first and second refractive surfaces 42222, is silver-plated. The inner wall of the second mirror hole 4232, except for the inner wall corresponding to the third and fourth refractive surfaces 42322, is silver-plated.

[0065] The infrared rays emitted by the infrared emitting tube of the distance sensor, after entering the light-emitting part 423, can sequentially pass through the second light-transmitting hole, the inner wall of the second mirror hole 4232 corresponding to the third refractive surface 42321, the light-emitting reflector 425, the inner wall of the second mirror hole 4232 corresponding to the fourth refractive surface 4232, and the light-emitting surface 4231 to be emitted to the outside, and are reflected on other surfaces of the light-emitting part 423, so that the infrared rays are conducted to the outside of the terminal device 100 as much as possible.

[0066] External infrared light can pass sequentially through the light-incident surface 4221, the inner wall of the first mirror hole 4222 corresponding to the second refractive surface 42222, the light-incident reflector 424, the inner wall of the first mirror hole 4222 corresponding to the first refractive surface 42221, and the first light-transmitting hole of the light-transmitting surface 4212, and is finally received by the infrared receiving tube, and reflected on other surfaces of the light-incident part 422.

[0067] By silvering the above-mentioned positions, the reflection of light by the silver surface can be utilized to reduce the loss of infrared optical energy caused by the infrared light emitted by the infrared emitter of the distance sensor not being parallel to the light-emitting part 423, or the infrared light received by the infrared receiver not being parallel to the light-receiving part 422, thereby improving the sensitivity and distance sensing function of the distance sensor.

[0068] For example Figures 3 to 5 As shown, in this embodiment, the light-incident portion 422 and the light-exit portion 423 are arranged side by side and spaced apart on the same surface of the body 421. Furthermore, the light-incident portion 422 and the light-exit portion 423 are arranged on the same side away from the light-transmitting surface 4212.

[0069] Specifically, the body 421 is provided with a first surface and a second surface. The opening of the receiving groove 4211 is provided on the first surface. The first end of the light-incident part 422 and the first end of the light-emitting part 423 are both inclinedly connected to the second surface of the body 421. The light-incident part 422 and the light-emitting part 423 are arranged side by side and spaced apart on the same side of the second surface of the body 421, that is, the light-incident part 422 and the light-emitting part 423 extend side by side in the same direction.

[0070] In this embodiment, the light-receiving portion 422 and the light-emitting portion 423 are inclined relative to the main body 421, thus making the light-receiving portion 422 and the light-emitting portion 423 inclined relative to the screen of the terminal device 100. However, in some embodiments, the second surface of the main body 421 can be perpendicular to the light-receiving portion 422 and the light-emitting portion 423. Since the second surface of the main body 421 is parallel to the light-transmitting surface 4212, the first surface, and the photosensitive surface of the distance sensor, the photosensitive surface of the distance sensor is also perpendicular to the light-receiving portion 422 and the light-emitting portion 423, ultimately enabling the distance sensor to receive and emit infrared light perpendicularly.

[0071] The light-incident portion 422 and the light-emitting portion 423 are tilted relative to the screen of the terminal device 100. In some other embodiments, the first surface, the second surface, the light-transmitting surface 4212 of the main body 421 and the photosensitive surface of the distance sensor are parallel to the screen of the terminal device 100. The light-incident portion 422 and the light-emitting portion 423 are tilted to the second surface of the main body 421. Therefore, the photosensitive surface of the distance sensor is also tilted relative to the light-incident portion 422 and the light-emitting portion 423.

[0072] Furthermore, the light-incident portion 422 and the light-emitting portion 423 have square cross-sections. In other embodiments, the cross-sections of the light-incident portion 422 and the light-emitting portion 423 may also be circular, trapezoidal, rhomboid, or any other shape. Additionally, in this embodiment, the light-incident portion 422 and the light-emitting portion 423 are straight columnar structures. In other embodiments, the light-incident portion 422 and the light-emitting portion 423 may be arc-shaped, wavy, or any other shape designed according to the stacking space or arrangement of the internal components of the terminal device 100; no limitation is made herein.

[0073] In some other embodiments, the light-incident section 422 and the light-emitting section 423 can be arranged adjacent to each other. In order to avoid interference between the emitted infrared rays and the received infrared rays, a light-shielding bracket (not shown in the figure) is provided between the light-incident section 422 and the light-emitting section 423. The light-shielding bracket is used to isolate the infrared rays of the light-incident section 422 and the light-emitting section 423, so as to avoid crosstalk between the infrared rays of the light-incident section 422 and the light-emitting section 423, thereby affecting the detection effect of the distance sensor.

[0074] In some embodiments, the body 421 of the light guide 42 is further provided with a first sealing rib 4213, which surrounds the receiving groove 4211.

[0075] Specifically, during assembly, the distance sensor is first fixedly connected to the flexible circuit board 50 by spot welding, and then the distance sensor is placed in the receiving groove 4211 of the body 421. At this time, the flexible circuit board 50 and the groove opening of the receiving groove 4211 of the body 421 are in contact.

[0076] The first sealing rib 4213 can be integrally formed with the body 421 of the light guide 42. The first sealing rib 4213 can undergo elastic deformation. Therefore, by setting the first sealing rib 4213 at the opening of the receiving groove 4211, the body 421 of the light guide 42 can be prevented from squeezing the flexible circuit board 50. It can also seal the receiving groove 4211 to prevent dust, sludge or external moisture from the flexible circuit board 50 from entering the receiving groove 4211 and damaging the distance sensor, thereby extending the service life of the distance sensor.

[0077] Furthermore, as can be seen from the above, after the terminal device 100 undergoes vibration and drop tests, the positions of the light guide 42 and the distance sensor are required to be relatively stable and fixed. Therefore, in related technologies, the light guide 42 is usually made of polymethyl methacrylate (PMMA) or nylon (PA) to form a relatively rigid structure. During assembly, the light guide 42 and the distance sensor may collide due to their dimensional tolerances or assembly tolerances, or due to the impact of the terminal device 100 during a drop. Therefore, in related technologies, the light guide 42 is often not in contact with the distance sensor and a gap is left. The gap will cause the sensor assembly 40 to occupy a large amount of space inside the terminal device 100.

[0078] To address this issue, in some embodiments, the light guide 42 is made of optical silicone and is black and transparent.

[0079] First, the light guide 42 is made of black transparent optical silicone material, which is softer than PMMA or PA material, allowing the light guide 42 to directly contact the distance sensor and avoiding damage to the distance sensor caused by the light guide 42 made of PMMA or PA material.

[0080] Secondly, since the light guide 42 does not need to avoid the distance sensor in the length, width and thickness directions, when the light guide 42 is used in conjunction with the distance sensor, it can greatly save the structural space of the motherboard and the top structural space of the terminal device 100.

[0081] Finally, the light guide 42 made of optical silicone material has good elasticity, which can effectively prevent the deformation of the light guide 42 during the drop of the terminal device 100, and avoid the problems of damage to the light guide 42 and the detachment of the distance sensor.

[0082] Furthermore, the light guide 42 is integrally formed by injection molding, that is, the body 421, the light-incident part 422, and the light-exiting part 423 are integrally formed. After the light guide 42 is formed by injection molding, the light-incident reflector 424 and the light-exit reflector 425 can be respectively inserted into the first mirror hole 4222 and the second mirror hole 4232.

[0083] In some embodiments, the sensor assembly 40 further includes a support portion 43, which is sleeved on the outside of the light guide 42. The support portion 43 of the sensor assembly 40 may be made of polycarbonate (PC) material, so that the support portion 43 can support the light guide 42, increasing the strength of the light guide 42 and preventing the light guide 42 from shaking or twisting during drop tests or vibration tests.

[0084] In this embodiment, the support portion 43 can be injection molded. After the support portion 43 is injection molded, the light guide 42 can be injection molded again within the support portion 43. Secondary injection molding is a process in which a certain plastic raw material is molded in a plastic mold in one step, the molded part is taken out and placed into a secondary molding mold to be injected with the same or another type of plastic material again.

[0085] The injection-molded support part 43 and the secondary injection-molded light guide 42 and support part 43 can make the connection between the support part 43 and the terminal device 100 more stable, the light guide 42 and the support part 43 fit better, and the support part 43 and the light guide 42 occupy less space. While ensuring strength, they can also save the internal structural space of the terminal device 100.

[0086] In some embodiments, the inner and / or outer surfaces of the support portion 43 are coated with a black opaque material. Specifically, all surfaces of the support portion 43 can be blackened to prevent light leakage and cross-contamination of the light guide 42. The silver plating of the light guide 42 and the blackening of the support portion 43 not only prevent light leakage and cross-contamination of the light guide 42, but also effectively prevent light generated by the screen from entering the light guide 42 and affecting the distance sensing function of the distance sensor.

[0087] Based on the same concept, this disclosure also provides a terminal device 100. The terminal device 100 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, translator, and wearable devices such as watches and bracelets. In this embodiment, a mobile phone is used as an example of the terminal device 100.

[0088] Figure 6 This is a cross-sectional view illustrating a combination of a mid-frame and a screen trim piece according to an exemplary embodiment. (See example...) Figure 1 and Figure 2 and Figure 6 As shown, the terminal device 100 includes a mid-frame 10, a screen trim 20, and a sensor assembly 40.

[0089] In some embodiments, at least one of the light-incident portion 422 and the light-emitting portion 423 of the sensor assembly 40 is inserted into the mid-frame 10 or the screen decorative element 20. Specifically, the light-incident portion 422 and the light-emitting portion 423 may both be inserted into the mid-frame 10; or both may be inserted into the screen decorative element 20; or the light-incident portion 422 may be inserted into the screen decorative element 20, and the light-emitting portion 423 may be inserted into the mid-frame 10; or the light-incident portion 422 may be inserted into the mid-frame 10, and the light-emitting portion 423 may be inserted into the screen decorative element 20.

[0090] In this embodiment, both the light-incident part 422 and the light-exit part 423 are inserted into the screen decoration part 20. Figure 7 This is a schematic diagram illustrating a combination of a mid-frame and a screen decorative element according to an exemplary embodiment. Specifically, as shown... Figure 6 and Figure 7 As shown, a first mounting hole 11 is provided on the side of the middle frame 10 away from the screen assembly, and a fixing groove is provided on the side of the middle frame 10 closer to the screen assembly. The screen decorative piece 20 is fixed to one side of the middle frame 10 through the fixing groove. Furthermore, the screen decorative piece 20 is fixed in the fixing groove of the middle frame 10 by dispensing adhesive.

[0091] Figure 8 This is a structural diagram illustrating a mid-frame, screen trim, and screen assembly according to an exemplary embodiment. Figure 6 and Figure 8 The screen decorative component 20 is provided with a second mounting hole 21 and a third mounting hole 22 that penetrate the screen decorative component 20 and communicate with the first mounting hole 11. The sensor assembly 40 includes a sensor 41, a light guide 42, and a support 43. The light guide 42 includes a body 421, a light-incident part 422, and a light-emitting part 423. Since the second mounting hole 21 and the third mounting hole 22 communicate with the first mounting hole 11, when the sensor assembly 40 is assembled with the middle frame 10 and the screen decorative component 20, the body 421 of the light guide 42 can be disposed in the first mounting hole 11, the light-incident part 422 can be disposed in the second mounting hole 21, and the light-incident surface 4221 can extend to the surface of the screen decorative component 20. The light-emitting part 423 can be disposed in the third mounting hole 22, and the light-emitting surface 4231 can extend to the surface of the screen decorative component 20 and be flush with the screen decorative component 20.

[0092] The light-inlet section 422 and the light-outlet section 423 obliquely penetrate the screen decorative member 20, and the light-inlet surface 4221 and the light-outlet surface 4231 are directly connected to the outside of the terminal device 100. This not only avoids the reduction of the width of the black border of the screen due to the width of the light guide member 42, but also avoids the loss of infrared optical energy during the emission and reception of infrared light by the sensor without having to pass through the screen. While narrowing the width of the black border of the screen, it can also ensure the distance sensing function of the sensor.

[0093] In this embodiment, when the light guide 42 is assembled with the support 43, the support 43 can be injection molded in the guide post hole of the middle frame 10 and the second mounting hole 21 and the third mounting hole 22 of the screen decoration 20. After the support 43 is formed, black transparent optical silicone is injected into the inside of the support 43 to form the light guide 42.

[0094] In some embodiments, such as Figure 6As shown, the terminal device 100 screen assembly 30 and the screen decorative part 20 are also provided with a mounting groove 23. The terminal device 100 also includes a screen assembly 30, which is fixed in the mounting groove 23 by a first adhesive. The first mounting hole 11, the second mounting hole 21 and the third mounting hole 22 are all spaced apart from the mounting groove 23 and are not connected, so that the light emitted or received by the sensor does not overlap with the screen assembly 30. This avoids the light from the screen from leaking to the light guide 42 and also avoids the light guide 42 from occupying the black border of the screen, thus reducing the screen ratio.

[0095] Therefore, it can be seen that since the screen assembly 30 needs to be fixedly connected to the screen decoration part 20 through the first adhesive, in the related technology, since the first mounting hole 11 is connected to the mounting groove 23, the first adhesive can easily overflow into the first mounting hole 11, thereby causing the first mounting hole 11 to narrow or even become blocked, thus affecting the measurement accuracy of the sensor.

[0096] In this disclosure, the light guide 42 is placed on the middle frame 10 and the screen decorative part 20, and the first mounting hole 11, the second mounting hole 21 and the third mounting hole 22 are not connected to the mounting groove 23, thereby avoiding the glue application area of ​​the screen assembly 30 and the screen decorative part 20. This can fundamentally solve the problem that glue easily overflows into the first mounting hole 11, the second mounting hole 21 or the third mounting hole 22, causing the first mounting hole 11 to become narrow or blocked.

[0097] In addition, the first mounting hole 11, the second mounting hole 21 and the third mounting hole 22 are not connected to the mounting groove 23, and the silver plating of the light guide 42 and the black coating of the support part 43 can prevent the light generated by the screen from entering the light guide 42 and avoid the light from the screen from affecting the detection effect of the sensor.

[0098] Furthermore, such as Figure 2 As shown, the screen assembly 30 includes an LED screen 31 and a cover plate 32. The screen decorative part 20 also includes an adhesive groove 24 in the mounting groove 23. The cover plate of the screen assembly 30 and the screen decorative part 20 are fixedly connected by applying a first adhesive in the adhesive groove 24.

[0099] In some embodiments, such as Figure 1 and Figure 2 As shown, the terminal device 100 also includes a motherboard 60, a flexible circuit board 50, and a clamping component 70.

[0100] The flexible circuit board 50 is fixed to the middle frame 10 by the second adhesive 51 and is electrically connected to the sensor 41; the sensor 41 is fixed to the flexible circuit board 50 by spot welding and is also electrically connected. Specifically, during assembly, the sensor 41 is first fixedly connected to the flexible circuit board 50 by spot welding, and then the sensor 41 is placed in the receiving groove 4211 of the body 421. At this time, the flexible circuit board 50 is in contact with the opening of the receiving groove 4211 of the body 421 and the middle frame 10. Except for the part of the opening of the receiving groove 4211, the flexible circuit board 50 is fixedly connected to the middle frame 10 by the second adhesive 51.

[0101] The motherboard 60 is electrically connected to the flexible circuit board 50; for example... Figure 1 and Figure 2 As shown, the flexible circuit board 50 is electrically connected to the motherboard 60 via a spring contact 80 on the side opposite to the screen assembly 30.

[0102] The clamping member 70 is disposed between the flexible circuit board 50 and the main board 60. The first side of the clamping member 70 is fixed to the main board 60 by the third adhesive 71, and the second side of the clamping member 70 is pressed against the flexible circuit board 50.

[0103] The clamping component 70 can be made of silicone material. The clamping component 70 made of silicone material has good elasticity and can undergo elastic deformation. On the one hand, it will not damage the flexible circuit board 50 and the main board 60. On the other hand, the clamping component 70 made of silicone is wear-resistant and pressure-resistant, and has a long service life.

[0104] Furthermore, the motherboard 60 is also fixed to the middle frame 10. When the clamping member 70 is not compressed, the height of the clamping member 70 is greater than the distance between the motherboard 60 and the flexible circuit board 50. However, when the motherboard 60 is fixed to the middle frame 10, since the distance between the motherboard 60 and the flexible circuit board 50 is less than the height of the clamping member 70, the motherboard 60 will squeeze the clamping member 70, causing the second side of the clamping member 70 to press against the flexible circuit board 50, and causing the clamping member 70 to extend and deform in both directions parallel to or perpendicular to the screen.

[0105] When installing the motherboard 60, the motherboard 60 presses the flexible circuit board 50 with the clamping member 70, so that the flexible circuit board 50 is tightly attached to the middle frame 10 and the light guide 42. On the one hand, this can prevent the light guide 42 from shaking or loosening; on the other hand, it can also prevent the relative position between the sensor and the light guide 42 inside the light guide 42 from moving.

[0106] In some embodiments, a second sealing rib 72 is provided on the first side of the clamping member 70; and / or a second sealing rib 72 is provided on the second side of the clamping member 70. When the motherboard 60 presses the flexible circuit board 50 by the clamping member 70, the first sealing rib 4213 of the clamping member 70 can further increase the elasticity and sealing performance of the clamping member 70, and avoid pressure damage to the motherboard 60 and the flexible circuit board 50 by the clamping member 70.

[0107] It is understood that the terminal device 100 provided in this disclosure embodiment includes hardware structures and / or software modules corresponding to each function in order to achieve the above-mentioned functions. In conjunction with the units and algorithm steps of the various examples disclosed in this disclosure embodiment, this disclosure embodiment can be implemented in hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of this disclosure embodiment.

[0108] Regarding the terminal device 100 in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments concerning the sensor component 40, and will not be elaborated upon here.

[0109] Figure 9 This is a block diagram illustrating an apparatus 800 according to an exemplary embodiment. For example, apparatus 800 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0110] Reference Figure 9 The device 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0111] Processing component 802 typically controls the overall operation of device 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0112] Memory 804 is configured to store various types of data to support the operation of device 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0113] The power supply component 806 provides power to the various components of the device 800. The power supply component 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 800.

[0114] Multimedia component 808 includes a screen that provides an output interface between device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When device 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0115] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when device 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0116] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0117] Sensor assembly 814 includes one or more sensors for providing state assessments of various aspects of device 800. For example, sensor assembly 814 may detect the on / off state of device 800, the relative positioning of components such as the display and keypad of device 800, changes in the position of device 800 or a component of device 800, the presence or absence of user contact with device 800, the orientation or acceleration / deceleration of device 800, and temperature changes of device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0118] Communication component 816 is configured to facilitate wired or wireless communication between device 800 and other devices. Device 800 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0119] In an exemplary embodiment, the apparatus 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0120] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by a processor 820 of the device 800 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0121] It is understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0122] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0123] It is further understood that the terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0124] It can be further understood that, unless otherwise specified, "connection" includes both direct connections where no other components exist between the two parties and indirect connections where other components exist between them.

[0125] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0126] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following scope of claims.

[0127] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A sensor assembly, characterized by The sensor assembly comprises: a sensor; and a light guide that guides light emitted or received by the sensor, the light guide comprising: a body; a light-in portion and / or a light-out portion that are arranged obliquely relative to the body; the light-in portion is provided with a first mirror hole at one end away from the body, the first mirror hole being perpendicular to the propagation direction of light in the light-in portion; the light guide further comprises a light-in mirror arranged in the first mirror hole, the light-in mirror comprising a first refractive surface and a second refractive surface, a first included angle being formed between the first refractive surface and the second refractive surface.

2. The sensor assembly according to claim 1, wherein the light-out portion is provided with a second mirror hole at one end away from the body, the second mirror hole being perpendicular to the propagation direction of light in the light-out portion; the light guide further comprises a light-out mirror arranged in the second mirror hole.

3. The sensor assembly according to claim 2, wherein the light-out mirror comprises a third refractive surface and a fourth refractive surface, a second included angle being formed between the third refractive surface and the fourth refractive surface.

4. The sensor assembly according to claim 3, wherein the body is provided with a receiving groove, the sensor being received in the receiving groove; a first end of the light-in portion is obliquely connected to the body, and a second end of the light-in portion is provided with a light-in surface; a first end of the light-out portion is obliquely connected to the body, and a second end of the light-out portion is provided with a light-out surface.

5. The sensor assembly according to claim 4, wherein the receiving groove is provided with a light-transmitting surface, the light-transmitting surface being provided with a first light-transmitting hole and a second light-transmitting hole; the sensor is provided with an emission end and a receiving end, the receiving end corresponding to the first light-transmitting hole, and the emission end corresponding to the second light-transmitting hole.

6. The sensor assembly of claim 5, wherein, one or more positions are provided with a light-reflecting material: an outer wall of the body is provided with the light-reflecting material; an inner wall of the receiving groove of the body is provided with the light-reflecting material, except for the first light-transmitting hole and the second light-transmitting hole; an outer wall of the light-in portion is provided with the light-reflecting material, except for the light-in surface; an inner wall of the first mirror hole of the light-in portion is provided with the light-reflecting material, except for positions corresponding to the first refractive surface and the second refractive surface; an outer wall of the light-out portion is provided with the light-reflecting material, except for the light-out surface; an inner wall of the second mirror hole of the light-out portion is provided with the light-reflecting material, except for positions corresponding to the third refractive surface and the fourth refractive surface.

7. The sensor assembly according to claim 5, wherein the body of the light guide is further provided with a first sealing rib, the first sealing rib being arranged around the receiving groove.

8. The sensor assembly according to claim 1, wherein the light-in portion and the light-out portion are arranged side by side and spaced apart on the same face of the body.

9. The sensor assembly according to claim 1, wherein the sensor assembly further comprises a support portion, the support portion being sleeved on the outside of the light guide.

10. The sensor assembly according to claim 9, wherein, the inner side and / or the outer side of the support portion is provided with a black light-proof material.

11. A terminal device, comprising: comprising: a middle frame, a screen decoration, and the sensor assembly according to any one of claims 1 to 10; wherein at least one of the light-in portion and the light-out portion of the sensor assembly is inserted into the middle frame or the screen decoration.

12. The terminal device according to claim 11, wherein, the middle frame is provided with a first mounting hole; the screen decoration is fixed to one side of the middle frame, and the screen decoration is provided with a second mounting hole and a third mounting hole which penetrate through the screen decoration and communicate with the first mounting hole; wherein the body of the light guide is arranged in the first mounting hole, the light-in portion of the light guide is arranged in the second mounting hole, and the light-out portion of the light guide is arranged in the third mounting hole.

13. The terminal device according to claim 12, wherein, the terminal device further comprises a screen assembly; the screen decoration is further provided with a mounting groove, and the screen assembly is fixed in the mounting groove by a first adhesive; wherein the first mounting hole, the second mounting hole, and the third mounting hole are spaced apart from and do not communicate with the mounting groove, so that the path of the light emitted or received by the sensor does not overlap with the screen assembly.

14. The terminal device of claim 11, wherein, the terminal device further comprises: a flexible circuit board fixed to the middle frame by a second adhesive and electrically connected to the sensor; a main board electrically connected to the flexible circuit board; and a compression member arranged between the flexible circuit board and the main board, wherein a first surface of the compression member is fixed to the main board by a third adhesive, and a second surface of the compression member is in abutment with the flexible circuit board.

15. The terminal device according to claim 14, wherein, the first surface of the compression member is provided with a second sealing rib; and / or the second surface of the compression member is provided with a second sealing rib.

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