Optical sensing components and terminal devices

Abstract

This disclosure provides a photosensitive component and terminal device, relating to the field of electronic technology. The photosensitive component includes a photosensitive element and a light guide; the light guide includes a light-inlet surface and a light-outlet surface; the light-inlet surface and the light-outlet surface are located at two opposite ends of the light guide, allowing light to enter along the light-inlet surface, be transmitted through the interior of the light guide, and then exit along the light-outlet surface; the photosensitive element is located on the side containing the light-outlet surface; the photosensitive element has a photosensitive effective area, the area of ​​the light-outlet surface is greater than or equal to the area of ​​the photosensitive effective area, and the entire photosensitive effective area is located within the light-outlet surface, with the light emitted from the light-outlet surface covering the entire range of the photosensitive effective area. The photosensitive component of this disclosure allows the light emitted from the light-outlet surface to cover the entire range of the photosensitive effective area, ensuring that the photosensitive effective area of ​​the photosensitive element directly receives 100% of the external ambient light. Even when the photosensitive element is not aligned with the light-transmitting gap, it can still receive external ambient light with a sufficiently large field of view, guaranteeing the reliable operation of the photosensitive element.

Description

Technical Field

[0001] This disclosure relates to the field of electronic technology, and in particular to a light-sensing component and terminal device. Background Technology

[0002] With technological advancements, mobile phones and other terminal devices have gradually become necessities in people's lives. Automatic brightness adjustment based on ambient light is an essential function of these electronic devices. This function involves photosensitive elements.

[0003] In full-screen terminal devices, the photosensitive element is usually placed using either a narrow-slit light-sensing solution or an under-display light-sensing solution. The narrow-slit light-sensing solution uses the light-transmitting gap between the screen module and the mid-frame to guide light. However, in this solution, the position of the photosensitive element is limited by its own structure and size, as well as that of other components, and cannot be aligned with the light-transmitting gap, resulting in lower reliability of the photosensitive element. Summary of the Invention

[0004] This disclosure provides a light-sensing component and terminal device that can solve the problem of low reliability caused by the inability of the photosensitive element to be aligned with the light-transmitting gap.

[0005] The technical solution is as follows:

[0006] On the one hand, a light-sensing component is provided, the light-sensing component comprising: a light guide and a photosensitive element;

[0007] The light guide includes a light-inlet surface and a light-outlet surface; the light-inlet surface and the light-outlet surface are respectively located at two opposite ends of the light guide, and light can enter along the light-inlet surface, be transmitted through the interior of the light guide, and then exit along the light-outlet surface;

[0008] The photosensitive element is located on the side where the light-emitting surface is located;

[0009] The photosensitive element has a photosensitive effective area, the area of ​​the light-emitting surface is greater than or equal to the area of ​​the photosensitive effective area, and the entire photosensitive effective area is located within the light-emitting surface, and the light emitted from the light-emitting surface can cover the entire range of the photosensitive effective area.

[0010] In some embodiments, the light guide includes a light guide column portion and a light diffusion portion;

[0011] The light-emitting diffuser is connected to the first end of the light-emitting column corresponding to the light-emitting surface;

[0012] The end faces of the light guide column and the light diffusion section are aligned, and the end faces of the light guide column and the light diffusion section are joined together to form the light emission surface.

[0013] In some embodiments, the cross-sectional area of ​​the light-emitting diffuser gradually increases along the light-guiding direction of the light guide, and the light transmitted in the light guide column can diffuse into the light-emitting diffuser and be emitted along the entire light-emitting surface.

[0014] In some embodiments, the light-incoming surface is located at the second end of the light guide column, and the edge of the light-incoming surface is provided with a light-shielding structure, which is located at least at the edge of the light-incoming surface near the display module of the terminal device.

[0015] In some embodiments, the light-shielding structure is located on the light-incoming surface near the first edge of the display module, and / or near the second edge of the infrared lamp or soft light of the terminal device.

[0016] In some embodiments, the light-shielding structure includes a light-shielding coating or a flange of the light guide column.

[0017] In some embodiments, the light-gathering surface is inclined, and / or the surface of the light-gathering surface is provided with a Fresnel structure.

[0018] In some embodiments, the light guide further includes an auxiliary support portion connected to a first end of the light guide column portion, the auxiliary support portion having a receiving cavity opening toward the photosensitive element, and the photosensitive element being located within the receiving cavity.

[0019] In some embodiments, the light guide element, except for the light-inlet surface and the light-outlet surface, is coated with a light-shielding material.

[0020] On the other hand, a terminal device is provided, the terminal device comprising: a screen cover, a display module, a housing, a photosensitive circuit board, and a photosensitive component as described in any one of the present disclosure;

[0021] The photosensitive circuit board is located inside the housing, and the display module and the screen cover are located on the front side of the housing; the light-sensing component is located inside the housing and close to the upper side of the housing, the light-receiving surface is attached to the inner side of the screen cover, and the photosensitive element is connected to the photosensitive circuit board.

[0022] In some embodiments, the light guide includes an auxiliary support portion, the bottom of which is connected to the photosensitive circuit board.

[0023] The beneficial effects of the technical solution provided in this disclosure include at least the following:

[0024] The light-sensing component disclosed herein has a light-emitting surface area that is greater than or equal to the area of ​​the photosensitive effective area of ​​the photosensitive element, and the entire photosensitive effective area is located within the light-emitting surface. The light emitted from the light-emitting surface can cover the entire range of the photosensitive effective area, so that the photosensitive effective area of ​​the photosensitive element can directly receive 100% of the external ambient light. Even when the photosensitive element and the light-transmitting gap are not aligned, the photosensitive element can still receive external ambient light with a sufficiently large field of view, ensuring the reliable operation of the photosensitive element. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the light-sensing component provided in the embodiments of this disclosure;

[0027] Figure 2 This is a schematic diagram of the structure of a light-sensing component provided in another embodiment of this disclosure;

[0028] Figure 3 This is an exploded view of the structure of the terminal device provided in the embodiments of this disclosure;

[0029] Figure 4 This is a cross-sectional view of the terminal structure provided in the embodiments of this disclosure.

[0030] The reference numerals in the figure are respectively:

[0031] 10. Light sensor assembly; 20. Screen cover; 30. Display module; 40. Housing; 50. Photosensitive circuit board;

[0032] 1. Light guide; 11. Light-entry surface; 111. First edge; 112. Second edge; 113. Third edge; 12. Light-exit surface; 13. Light guide column; 131. First end; 132. Second end; 14. Light-exit diffusion section; 15. Auxiliary support section; 151. Receiving cavity; 2. Photosensitive element; 21. Photosensitive effective area; 3. Light-shielding structure. Detailed Implementation

[0033] 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.

[0034] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this disclosure.

[0035] With the popularization and development of mobile phones and other terminal devices, high screen-to-body ratio and narrow bezels have become competitive indicators for products. The design of high screen-to-body ratio and narrow bezels makes it more difficult to implement narrow-slit light-sensing solutions.

[0036] The reason is that a high percentage of display area requires a larger display area, which forces the light-transmitting gap to be squeezed closer and closer to the edge of the casing, that is, to the outside of the terminal device.

[0037] Although the bezel of the front of the terminal device is thinned to achieve a narrow bezel, the side of the bezel cannot be thinned indefinitely due to the limitations of current materials and processing technology. Otherwise, the strength and reliability of the bezel would be reduced. This means that the photosensitive element inside the bezel is not allowed to move outward synchronously with the light transmission gap.

[0038] Furthermore, the photosensitive effective area of ​​the photosensitive element, which is also a part of the chip surface, is located near the center of the chip surface due to the chip processing and packaging technology.

[0039] The reasons mentioned above in the relevant technology result in the light-transmitting gap being able to move outward by a distance greater than the photosensitive element being able to move outward. As a result, the photosensitive element cannot be aligned with the light-transmitting gap, which reduces the amount of ambient light that the photosensitive element can receive and affects its operational reliability.

[0040] In response, this disclosure provides a light-sensing component and a terminal device. The area of ​​the light-emitting surface of the light guide is greater than or equal to the area of ​​the photosensitive effective area of ​​the photosensitive element, and the entire photosensitive effective area is located within the light-emitting surface. The light emitted from the light-emitting surface can cover the entire range of the photosensitive effective area, so that the photosensitive effective area of ​​the photosensitive element can directly receive 100% of the external ambient light. Even when the photosensitive element and the light-transmitting gap are not aligned, it can still receive external ambient light with a sufficiently large field of view, ensuring the reliable operation of the photosensitive element.

[0041] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0042] Figure 1 This is a schematic diagram of the structure of the light-sensing component 10 provided in this embodiment; in order to clearly illustrate the solution of this embodiment, Figure 1 The light guide 1 is shown in a cross-sectional view, and the photosensitive element 2 is shown in an overall structural view.

[0043] On the one hand, combined with Figure 1 , 3 As shown, this embodiment provides a light-sensing component 10, which includes a light guide 1 and a photosensitive element 2. The light guide 1 includes a light-inlet surface 11 and a light-outlet surface 12. The light-inlet surface 11 and the light-outlet surface 12 are located at two opposite ends of the light guide 1, and light can enter along the light-inlet surface 11, be transmitted through the interior of the light guide 1, and then exit along the light-outlet surface 12. The photosensitive element 2 is located on the side where the light-outlet surface 12 is located. The photosensitive element 2 has a photosensitive effective area 21, the area of ​​the light-outlet surface 12 is greater than or equal to the area of ​​the photosensitive effective area 21, and the entire photosensitive effective area 21 is located within the light-outlet surface 12. The light emitted from the light-outlet surface 12 can cover the entire area of ​​the photosensitive effective area 21.

[0044] The light-sensing component 10 disclosed in this embodiment has a light-emitting surface 12 of the light guide 1 with an area greater than or equal to the area of ​​the photosensitive effective area 21 of the photosensitive element 2, and the entire photosensitive effective area 21 is located within the light-emitting surface 12. The light emitted from the light-emitting surface 12 can cover the entire range of the photosensitive effective area 21, so that the photosensitive effective area 21 of the photosensitive element 2 can directly receive 100% of the external ambient light. Even when the photosensitive element 2 is not aligned with the light-transmitting gap, it can still receive the external ambient light with a sufficiently large field of view, ensuring the reliable operation of the photosensitive element 2.

[0045] In this embodiment, the light-emitting surface 12 of the light guide 1 has a large area. When the effective photosensitive area 21 of the photosensitive element 2 cannot be aligned with the light-transmitting gap, the light-emitting surface 12 can still cover the effective photosensitive area 21 and transmit the external ambient light to the effective photosensitive area 21.

[0046] In addition, the light guide 1 is made of a good light conductor material, and a stable light channel is formed inside the light guide 1. It can transmit the ambient light entering from the light-inlet surface 11 to the light-outlet surface 12 through the narrow light-transmitting gap by utilizing the refraction and reflection characteristics of light, and then illuminate the photosensitive effective area 21 through the light-outlet surface 12.

[0047] In some possible implementations, the light guide 1 is made of a light guide material.

[0048] For example, the light guiding materials mentioned above are made of materials including but not limited to polymethylmethacrylate (PMMA, also known as optical acrylic) and polyethylene terephthalate (PET), and have a very high light transmittance, with a light transmittance of 92%-93% or more.

[0049] In some possible implementations, the photosensitive element 2 is a device capable of converting light signals into electrical signals. The effective photosensitive area 21 is located on the photosensitive surface of the photosensitive element 2 facing the light-transmitting gap.

[0050] For example, the photosensitive element 2 can be an ambient light sensor, which is composed of photosensitive elements, including but not limited to photoresistors, photodiodes, phototransistors, silicon photovoltaic cells, etc.

[0051] Ambient light sensors have characteristics such as low dark current, low illumination response, high sensitivity, and linear change in current with increasing illumination.

[0052] In some possible implementations, the outer surface of the light guide 1 is provided with a reflective layer, which ensures that light within the light guide 1 can only be transmitted in the desired transmission direction. Exemplarily, the reflective layer is formed on the outer surface of the light guide 1 using a thin-film process or other processes.

[0053] Combination Figure 1 , 2 As shown, in some embodiments, the light guide 1 includes a light guide column portion 13 and a light emission diffuser portion 14; the light emission diffuser portion 14 is connected to the first end 131 of the light emission surface 12 of the light guide column portion 13; the end faces of the light guide column portion 13 and the light emission diffuser portion 14 are aligned, and the end faces of the light guide column portion 13 and the end faces of the light emission diffuser portion 14 are joined together to form the light emission surface 12.

[0054] The first end 131 of the light guide column 13 is the end closer to the light emitting surface 12, and the second end 132 is the end closer to the light receiving surface 11.

[0055] In this embodiment, the light-sensing component 10 has a light guide 1 divided into two parts: a light guide column 13 and a light-emitting diffuser 14. By connecting the light-emitting diffuser 14 to the first end 131 of the light guide column 13, the purpose of increasing the light-emitting surface 12 is achieved, so that the light-emitting surface 12 has a sufficient area to cover the entire photosensitive effective area 21.

[0056] In some possible implementations, the light guide column 13 is a column with a regular cross-section, the light emitting diffuser 14 is an oblique triangular prism, and the light emitting diffuser 14 is connected to one side of the first end 131 of the light guide column 13.

[0057] For example, the light-emitting diffuser 14 is located on the side of the light guide column 13 facing the display module 30, thereby solving the problem that when the distance of the light-transmitting gap is greater than the distance of the photosensitive element 2, the photosensitive effective area 21 can receive less external ambient light when the photosensitive element 2 is staggered towards the side where the display module 30 is located, thus ensuring the reliable operation of the photosensitive element 2.

[0058] In another example, heat dissipation particles are provided in both the light guide column portion 13 and / or the light diffusion portion 14 to increase the light reflection or refraction effect, thereby promoting the conduction effect of light in the light guide column portion 13, the light diffusion portion 14 or from the light guide column portion 13 into the light diffusion portion 14.

[0059] In some possible implementations, the light guide pillar 13 and the light diffuser 14 are integrally formed. Exemplarily, the light guide pillar 13 and the light diffuser 14 are integrally injection molded.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0061] Combination Figure 1 , 2 As shown, in some embodiments, the cross-sectional area of ​​the light-emitting diffuser 14 gradually increases along the light-guiding direction of the light guide 1, and the light transmitted in the light guide column 13 can diffuse into the light-emitting diffuser 14 and be emitted along the entire light-emitting surface 12. The cross-section of the light-emitting diffuser 14 is perpendicular to the direction in which the light guide 1 transmits light.

[0062] In this embodiment, the cross-sectional area of ​​the light-emitting diffuser 14 of the photosensitive component 10 gradually increases, so that the light in the light guide column 13 gradually diffuses until it fills the entire light-emitting surface 12, ensuring that the photosensitive effective area 21 of the photosensitive element 2 receives relatively uniform emitted light and improving the photosensitive quality of the photosensitive element 2.

[0063] Combination Figure 1 , 2 As shown in Figures 1 and 4, in some embodiments, the light-incoming surface 11 is located at the second end 132 of the light guide column portion 13, and the edge of the light-incoming surface 11 is provided with a light-shielding structure 3, which is located at least at the edge of the light-incoming surface 11 near the display module 30 of the terminal device.

[0064] In this embodiment, the light-sensing component 10 has a light-shielding structure 3 at the edge of the light-inlet surface 11. This ensures that after the light-inlet surface 11 is tightly attached to the inner side of the screen cover 20, no light will leak through the gap between the light-inlet surface 11 and the screen cover 20, thereby affecting the light-sensing effect of the photosensitive element 2.

[0065] In some possible implementations, the light-incoming surface 11 is attached to the inner side of the screen cover 20, and ambient light can pass through the screen cover 20 and enter the light-incoming surface 11.

[0066] In some possible implementations, the light-shielding structure 3 is made of a flexible material, so that after the light-incoming surface 11 is pressed against the screen cover 20, the light-shielding structure 3 deforms under pressure to completely close the gap.

[0067] Combination Figure 1 , 4 As shown, in some embodiments, the light-shielding structure 3 is located on the light-incoming surface 11 near the first edge 111 of the display module 30, and / or near the second edge 112 of the infrared lamp or soft light of the terminal device.

[0068] Considering that the top edge of the terminal device has the lowest probability of being blocked, the narrow-slit light sensing solution is usually located on this top edge. However, the top edge usually also needs to be equipped with components such as an infrared range sensor, a soft light, a front-facing camera module, and an antenna. On the one hand, the space available for arranging the narrow-slit light sensing solution is small; on the other hand, the light emitted by the infrared range sensor, soft light, and other light-emitting elements will cause significant light interference to the photosensitive element 2.

[0069] In this embodiment, the light-sensing component 10 is located on the light-receiving surface 11 near the first edge 111 of the display module 30 and / or toward the second edge 112 of the infrared lamp or soft light that is also arranged on the upper side, thereby blocking out interfering light from the first edge 111 or the second edge 112.

[0070] Combination Figure 1 As shown, in some possible implementations, the third edge 113 facing the upper side of the terminal device is not provided with a light-shielding structure 3. The third edge 113 is connected to the outside, which can increase the angle of light collection of the light-incoming surface 11 to the external ambient light and increase the amount of light entering the light guide 1.

[0071] In some embodiments, the light-shielding structure 3 includes a light-shielding coating or a flange of the light guide column portion 13. Thus, the light-shielding of the light-incoming surface 11 is achieved by means of the light-shielding coating or the flange of the light guide column portion 13.

[0072] In some embodiments, the light-receiving surface 11 is tilted. Exemplarily, the light-receiving surface 11 is tilted toward a direction away from the display module 30, thereby increasing the amount of light received by the light-receiving surface 11 and improving the light-sensing effect of the photosensitive element 2.

[0073] In some embodiments, the surface of the light-incoming surface 11 is provided with a Fresnel structure. By providing a Fresnel structure on the light-incoming surface 11 of the light guide 1, the external ambient light incident on the light-incoming surface 11 is adjusted to improve the light guiding effect of the light guide 1 and the light sensing effect of the photosensitive element 2.

[0074] Combination Figure 2 , 3 As shown, in some embodiments, the light guide 1 further includes an auxiliary support portion 15, which is connected to the first end 131 of the light guide column portion 13. The auxiliary support portion 15 is provided with a receiving cavity 151 that opens toward the photosensitive element 2, and the photosensitive element 2 is located in the receiving cavity 151.

[0075] The light-emitting surface 12 of the light guide 1 serves as part of the inner top wall of the receiving cavity 151, and its position corresponds to the photosensitive effective area 21 of the photosensitive element 2.

[0076] Therefore, in the photosensitive component 10 of this embodiment, the auxiliary support member covers the entire photosensitive element 2 through its receiving cavity 151. The photosensitive effective area 21 is directly opposite the light-emitting surface 12 of the light guide 1 inside the receiving cavity 151. The photosensitive effective area 21 can only receive light emitted from the light-emitting surface 12. This light is the external ambient light that enters from the light-inlet surface 11 and is transmitted along the light guide 1, so that the photosensitive element 2 is not affected by other light sources, and the ambient light detection accuracy of the photosensitive element 2 is further improved.

[0077] In some embodiments, the light guide 1 is coated with a light-shielding material on all surfaces except the light-inlet surface 11 and the light-outlet surface 12, thereby ensuring that the light guide 1 only allows light to enter from the light-inlet surface 11 and exit from the light-outlet surface 12, and does not allow light from other light sources or directions to enter, so that the photosensitive element 2 only receives external ambient light, avoids other interference, and improves the working reliability of the photosensitive element 2.

[0078] In this embodiment, the light-sensing component 10 has a light-guiding column 13 located within the light-transmitting gap of the terminal device. The light-inlet surface 11 is in close contact with the inner side of the screen cover 20. Ambient light passes through the screen cover 20 and enters the light-inlet surface 11, passing through the light-transmitting gap along the light-guiding column 13. The light-emitting surface 12 covers the entire photosensitive effective area 21 of the photosensitive element 2. The entire area of ​​the photosensitive effective area 21 can receive the light emitted from the light-emitting surface 12, thereby the photosensitive element 2 has high sensitivity and can accurately and reliably detect the intensity of external ambient light. As a result, the terminal device can adjust the brightness of the display module 30 in a timely and efficient manner, thereby improving the user experience of the terminal device.

[0079] The light-sensing component 10 of this embodiment is suitable for terminal devices, such as portable electronic devices, including smartphones, tablets, MP3 players (Moving Picture Experts Group Audio Layer III, MP4 players (Moving Picture Experts Group Audio Layer IV), laptops, or desktop computers, etc.

[0080] The light-sensing component 10 of this embodiment is also applicable to other products, such as electric shavers, electric toothbrushes, service point terminals, wearable devices, and automotive, medical, and industrial products.

[0081] On the other hand, combining Figure 3 , 4 As shown, this embodiment provides a terminal device, which includes: a screen cover 20, a display module 30, a housing 40, a photosensitive circuit board 50, and a light-sensing component 10 according to any one of the present disclosures; the photosensitive circuit board 50 is located inside the housing 40, and the display module 30 and the screen cover 20 are disposed on the front side of the housing 40; the light-sensing component 10 is located inside the housing 40 and close to the upper side of the housing 40, the light-receiving surface 11 is attached to the inner side of the screen cover 20, and the photosensitive element 2 is connected to the photosensitive circuit board 50.

[0082] The terminal device in this embodiment uses the photosensitive component 10 of any one of the present disclosures, and has all the technical effects of the present disclosure. The photosensitive element 2 is connected to the photosensitive circuit board 50, and the photosensitive circuit board 50 is fixedly connected to the inner side wall or inner lining plate of the housing 40, providing a stable and reliable installation method for the photosensitive component 10.

[0083] It is understood that the light sensing component 10 in this embodiment can also be installed in other ways.

[0084] Combination Figure 3 , 4 As shown, in some embodiments, the light guide 1 includes an auxiliary support portion 15, the bottom of which is connected to the photosensitive circuit board 50. The auxiliary support portion 15 is used to accommodate the opening below the receiving cavity 151 of the photosensitive element 2, which is closed by the photosensitive circuit board 50 around the photosensitive element 2, so that the photosensitive element 2 is in a closed space, preventing light from other light sources from entering and interfering with the photosensitive result of the photosensitive element 2.

[0085] In some possible implementations, the display module 30 includes an LCD (Liquid Crystal Display) display or an OLED (Organic Light-Emitting Diode) display, where OLED is also known as organic electroluminescence display or organic light-emitting semiconductor.

[0086] In some possible implementations, the screen cover 20 is also called the outer screen, which mainly protects the display module 30; in addition, some terminal devices currently use full lamination in-cell technology, in which the screen cover 20 is part of the display module 30.

[0087] For example, the screen cover 20 may be made of materials including but not limited to glass, polyimide (PI), transparent polyimide, ultra-thin glass (UTG), and polyethylene terephthalate (PET). It is understood that the screen cover 20 may be made of any of the above materials to form a single-layer or multi-layer structure, or a multi-layer composite structure made of any two or more of the above materials.

[0088] In some possible implementations, the housing 40 is made of metal and / or non-metallic materials. This can be understood as the housing 40 being made of metallic materials, or non-metallic materials, or a mixture of metallic and non-metallic materials. When the housing 40 is made of both metallic and non-metallic materials, it is integrally injection molded. For example, the side frames of the housing 40 are made of non-metallic materials, and the inner liner of the housing 40 is made of metallic materials; or, the side frames of the housing 40 are made of metallic materials, and the inner liner of the housing 40 is made of non-metallic materials.

[0089] Non-metallic materials include, but are not limited to, ABS plastic (Acrylonitrile Butadiene Styrene, ABS), polycarbonate (PC), and polyoxymethylene (POM); metallic materials include, but are not limited to, aluminum alloys, stainless steel, steel-aluminum composite die casting, and titanium alloys.

[0090] For example, the side frame of the housing 40 is made of PC material, and the inner liner of the housing 40 is made of aluminum alloy material, and the two are integrally injection molded.

[0091] The terminal device in this embodiment is, for example, a portable electronic device, such as a smartphone, tablet computer, MP3 player (Moving Picture Experts Group Audio Layer III, MP4 player (Moving Picture Experts Group Audio Layer IV), laptop computer, or desktop computer, etc.

[0092] The terminal device in this embodiment can also be other products, such as electric shavers, electric toothbrushes, service point terminals, wearable devices, and automobiles, medical and industrial products, etc.

[0093] In this article, "several" and "at least one" refer to one or more, while "multiple" and "at least two" refer to two or more. "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, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0094] It should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0095] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0096] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this disclosure.

[0097] The above description is merely an embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A terminal device, characterized in that, The terminal device includes: a light-sensing component (10), a screen cover (20), a display module (30), a housing (40), and a photosensitive circuit board (50); The light-sensing component (10) includes: a light guide (1) and a photosensitive element (2); The light guide (1) includes a light-inlet surface (11) and a light-outlet surface (12); the light-inlet surface (11) and the light-outlet surface (12) are respectively located at two opposite ends of the light guide (1); light can enter along the light-inlet surface (11), be transmitted through the interior of the light guide (1), and then be emitted along the light-outlet surface (12); The photosensitive element (2) is located on the same side as the light-emitting surface (12); The photosensitive element (2) has a photosensitive effective area (21), the area of ​​the light-emitting surface (12) is greater than or equal to the area of ​​the photosensitive effective area (21), and the entire photosensitive effective area (21) is located within the light-emitting surface (12). The light emitted from the light-emitting surface (12) can cover the entire range of the photosensitive effective area (21). The light guide (1) includes a light guide column (13), a light diffusion section (14), and an auxiliary support section (15); the light diffusion section (14) and the auxiliary support section (15) are respectively connected to the first end (131) of the light guide column (13) corresponding to the light emission surface (12), and the extension direction of the auxiliary support section (15) is parallel to the light emission surface (12) and the light intake surface (11); The display module (30) and the screen cover (20) are located on the front side of the housing (40); the photosensitive circuit board (50) is located inside the housing (40) and on the side of the display module (30) facing away from the screen cover (20); the light-sensing component (10) is located inside the housing (40) and close to the upper side of the housing (40); the light-gathering surface (11) is located on the side of the display module (30) and is in contact with the inner side of the screen cover (20); the auxiliary support part (15) is located on the side of the display module (30). The auxiliary support (15) extends to the side of the display module (30) facing away from the screen cover (20), and at least a portion of the auxiliary support (15) extends to the side of the housing (40) facing away from the display module (30) and is attached to the housing (40). The bottom of the auxiliary support (15) is connected to the photosensitive circuit board (50), and the photosensitive element (2) is connected to the photosensitive circuit board (50). The photosensitive element (2) is located in the enclosed space formed by the auxiliary support (15) and the photosensitive circuit board (50).

2. The terminal device according to claim 1, characterized in that, The end faces of the light guide column (13) and the light diffusion section (14) are aligned, and the end face of the light guide column (13) and the end face of the light diffusion section (14) are joined together to form the light emitting surface (12).

3. The terminal device according to claim 2, characterized in that, The cross-sectional area of ​​the light-emitting diffuser (14) gradually increases along the light-guiding direction of the light guide (1), and the light transmitted in the light guide column (13) can diffuse into the light-emitting diffuser (14) and be emitted along the entire light-emitting surface (12).

4. The terminal device according to claim 2, characterized in that, The light-inlet surface (11) is located at the second end (132) of the light guide column (13), and the edge of the light-inlet surface (11) is provided with a light-shielding structure (3). The light-shielding structure (3) is located at least at the edge of the light-inlet surface (11) near the display module (30) of the terminal device.

5. The terminal device according to claim 4, characterized in that, The light-shielding structure (3) is located on the light-incoming surface (11) near the first edge (111) of the display module (30) and / or near the second edge (112) of the infrared lamp or soft light of the terminal device.

6. The terminal device according to claim 4, characterized in that, The light-shielding structure (3) includes a light-shielding coating or a flange of the light guide column (13).

7. The terminal device according to claim 4, characterized in that, The light-inlet surface (11) is inclined, and / or the surface of the light-inlet surface (11) is provided with a Fresnel structure.

8. The terminal device according to any one of claims 2-7, characterized in that, The auxiliary support (15) is provided with a receiving cavity (151) that opens toward the photosensitive element (2), and the photosensitive element (2) is located in the receiving cavity (151).

9. The terminal device according to claim 8, characterized in that, The light guide (1) has light-shielding material on all surfaces except the light-inlet surface (11) and the light-outlet surface (12).

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