Electronic device

Abstract

An electronic device, comprising a body, an ambient light sensor, and a display module. The body is provided with a mounting recess, the ambient light sensor is arranged in the mounting recess, the display module is connected to the body and covers the mounting recess, and the display module is used for transmitting light to the ambient light sensor. A reflective layer is provided on at least part of the inner wall of the mounting recess and / or at least part of the surface of the ambient light sensor and / or at least part of the surface of the display module facing the mounting recess, the reflective layer is used for reflecting light, and the ambient light sensor is used for receiving the light reflected by the reflective layer. In the present application, after the display module covers the mounting recess, a closed space can be formed in the mounting recess, so that the light transmitted into the mounting recess by means of the display module can be fully reflected by the reflective layer and then enter a photosensitive portion of the ambient light sensor, thereby enhancing utilization of ambient light, increasing the amount of incoming short-wavelength blue light, and improving the color temperature adjustment accuracy of the display module.

Description

electronic devices

[0001] This invention claims priority to Chinese Patent Application No. 202423026020.4, filed with the State Intellectual Property Office of China on December 9, 2024, entitled “Electronic Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic product technology, and more specifically to an electronic device. Background Technology

[0003] Ambient light sensors are crucial components in mobile phones and other electronic devices. They receive ambient light, enabling the device to adjust the screen's color temperature accordingly. Adjusting the screen's color temperature requires a relatively high amount of ambient light. However, as ambient light passes through the screen, the screen's multilayer structure attenuates the amount of light entering, resulting in insufficient ambient light and unstable color temperature adjustment. In particular, as the wavelength of visible light decreases, light transmittance decreases sharply, which is especially problematic for shorter wavelengths of light such as blue light.

[0004] Application content

[0005] In view of this, this application provides an electronic device to increase the amount of light entering the device with shorter wavelengths and improve the stability of color temperature adjustment.

[0006] This application provides an electronic device, comprising a body, an ambient light sensor, and a display module. The body has a mounting slot. The ambient light sensor is disposed in the mounting slot. The display module is connected to the body and covers the mounting slot, and the display module transmits light to the ambient light sensor. A reflective layer is disposed on at least a portion of the inner wall of the mounting slot and / or at least a portion of the surface of the ambient light sensor and / or at least a portion of the surface of the display module facing the mounting slot. The reflective layer reflects light, and the ambient light sensor receives the light reflected by the reflective layer.

[0007] The electronic device provided in this application embodiment, after the display module covers the mounting slot, can form a closed space inside the mounting slot. This allows light transmitted through the display module into the mounting slot to be fully reflected by the reflective layer before entering the photosensitive part of the ambient light sensor. This avoids light inside the mounting slot being transmitted outside the mounting slot and causing loss, thereby improving the utilization rate of ambient light and allowing more light to enter the photosensitive part of the ambient light sensor. This can increase the amount of blue light with a shorter wavelength and improve the color temperature adjustment accuracy of the display module.

[0008] In one possible implementation, the display module includes a cover plate and a wiring layer, which are stacked together. The cover plate includes a light-transmitting area, and the wiring layer includes transmission lines. Along the thickness direction of the display module, at least a portion of the projection of the transmission lines does not coincide with the projection of the light-transmitting area. By ensuring that at least a portion of the projection of the transmission lines does not coincide with the projection of the light-transmitting area, the transmission lines can avoid blocking ambient light, allowing more ambient light to be transmitted from the light-transmitting area into the mounting slot, thus increasing the light transmittance. This, in turn, increases the amount of ambient light entering the ambient light sensor, especially increasing the amount of shorter wavelength blue light entering, thereby improving the accuracy of color temperature adjustment.

[0009] In one possible implementation, a first ink layer is disposed between the cover plate and the wiring layer, and the projection of the first ink layer coincides with the projection of the light-transmitting area along the thickness direction of the display module. The first ink layer can be a semi-transparent ink, which has a certain light-transmitting effect while also blocking light of a certain wavelength. For example, if the display module has high transmittance for light with wavelengths above 650nm, to balance the amount of light of different wavelengths entering the ambient light sensor, the first ink layer can appropriately reduce the amount of light other than blue light entering the light-transmitting area, while relatively increasing the amount of blue light entering the light-transmitting area.

[0010] In one possible implementation, a second ink layer is disposed between the cover plate and the wiring layer. Along the thickness direction of the display module, the projection of the second ink layer does not coincide with the projection of the light-transmitting area, and the light transmittance of the second ink layer is less than that of the first ink layer. Specifically, the second ink layer has a greater light-blocking ability than the first ink layer, meaning it allows less light to pass through. This reduces the transmittance of most longer wavelengths of light, thus facilitating the balance of different wavelengths of light and improving the accuracy of color temperature adjustment.

[0011] In one possible implementation, the body includes a support portion and a circuit board. One end of the support portion is connected to the display module, and the other end of the support portion is connected to the circuit board. The support portion and the circuit board enclose each other to form the mounting groove. The ambient light sensor is electrically connected to the circuit board. The support portion can be part of the phone's frame, and the circuit board can be the phone's motherboard, enabling electrical connections between components. By having the support portion and the circuit board cooperate to form the mounting groove, the internal structure and space of the phone can be fully utilized, which is beneficial for improving integration and achieving miniaturized device design.

[0012] In one possible implementation, a first seal is provided between the support portion and the display module; and / or, a second seal is provided between the support portion and the circuit board. The first seal seals the support portion and the display module, while the second seal seals the support portion and the circuit board. This creates a closed space within the mounting groove, preventing light leakage and ensuring that light entering the mounting groove is fully reflected and utilized, thus improving the accuracy of color temperature adjustment.

[0013] In one possible implementation, the reflective layer comprises a metallic coating or a white paint layer. Exemplarily, the metallic coating may include metal coatings such as silver, aluminum, or chromium, which have excellent reflectivity for shorter wavelengths of light. Similarly, the white paint layer may also have excellent reflectivity for shorter wavelengths of light, for example, a reflectivity greater than or equal to 20% for blue light with wavelengths between 400nm and 500nm. This increases the amount of shorter wavelength light entering the ambient light sensor, thereby improving the accuracy of color temperature adjustment. Furthermore, in other embodiments, the reflective layer may also be other metallic coatings or paint layers, as long as the metallic coating or paint layer used in the reflective layer has strong reflectivity for shorter wavelengths of light such as blue light.

[0014] In one possible implementation, the reflective layer is formed on at least a portion of the inner wall of the mounting groove and / or at least a portion of the surface of the ambient light sensor and / or at least a portion of the surface of the display module facing the mounting groove by printing, sputtering, or vapor deposition processes. These processes ensure reliable adhesion of the reflective layer to the respective surfaces while facilitating the formation of reflective layers on different surfaces.

[0015] In one possible implementation, the reflective layer has a reflectivity of 20% or greater for blue light with wavelengths between 400nm and 500nm, thereby increasing the amount of shorter wavelength light entering the ambient light sensor and improving the accuracy of color temperature adjustment.

[0016] In one possible implementation, the wavelength of the light reflected by the reflective layer is between 400nm and 500nm. The reflective layer has a strong ability to reflect blue light. While it can also reflect other wavelengths, its ability to reflect blue light is far stronger than its ability to reflect other wavelengths, thereby increasing the amount of shorter wavelength blue light entering the system and thus improving the accuracy of color temperature adjustment.

[0017] In one possible implementation, the display module includes a display area for displaying content. The projection of the ambient light sensor coincides with the projection of the display area along the thickness direction of the display module. Since some transmission lines in the wiring layer have a certain spacing in a direction perpendicular to the thickness direction of the display module, ambient light can be transmitted to the ambient light sensor through these gaps. Therefore, when the ambient light sensor is positioned relative to the display area along the thickness direction of the display module, ambient light can be transmitted to the sensor through the gaps between the transmission lines and further reflected by the reflective layer in the mounting slot, thereby improving the utilization rate of shorter wavelength light such as blue light.

[0018] In one possible implementation, the display module includes a non-display area, and the projection of the ambient light sensor coincides with the projection of the non-display area along the thickness direction of the display module. In the non-display area, the arrangement of transmission lines in the wiring layer is more flexible, allowing the transmission lines to avoid the light-transmitting area, thereby improving the transmittance of ambient light. That is, even when the ambient light sensor is positioned relative to the non-display area along the thickness direction of the display module, ambient light can still be transmitted to the ambient light sensor through the light-transmitting area avoided by the transmission lines, and can be further reflected by the reflective layer in the mounting slot, thereby improving the utilization rate of shorter wavelength light such as blue light.

[0019] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a schematic diagram of the structure of the electronic device provided in an embodiment of this application;

[0022] Figure 2 is a schematic diagram of ambient light propagating through the screen to the ambient light sensor in the related technology;

[0023] Figure 3 is a partial cross-sectional view of an electronic device provided in one embodiment of this application;

[0024] Figure 4 is a partial cross-sectional view of an electronic device provided in another embodiment of this application;

[0025] Figure 5 is a partial cross-sectional view of an electronic device provided in another embodiment of this application;

[0026] Figure 6 is a schematic diagram of ambient light propagating through the display module to the ambient light sensor in one embodiment of this application;

[0027] Figure 7 is a schematic diagram of ambient light propagating through the display module to the ambient light sensor in another embodiment of this application;

[0028] Figure 8 is a schematic diagram of ambient light propagating through the display module to the ambient light sensor in another embodiment of this application;

[0029] Figure 9 is a schematic diagram of ambient light propagating through the display module to the ambient light sensor in another embodiment of this application;

[0030] Figure 10 is a schematic diagram of ambient light propagating through the display module to the ambient light sensor in another embodiment of this application;

[0031] Figure 11 is a schematic diagram of ambient light propagating through the display module to the ambient light sensor in another embodiment of this application;

[0032] Figure 12 is a schematic diagram of ambient light propagating through the display module to the ambient light sensor in another embodiment of this application;

[0033] Figure 13 is a schematic diagram of ambient light propagating through the display module to the ambient light sensor in another embodiment of this application;

[0034] Figure 14 is a schematic diagram of ambient light propagating through the display module to the ambient light sensor in another embodiment of this application;

[0035] Figure 15 is a schematic diagram of ambient light propagating through the display module to the ambient light sensor in another embodiment of this application.

[0036] Reference numerals: 100-Electronic device; 110-Screen; 120-Ambient light sensor; 121-Photosensitive part; 1-Body; 11-Mounting groove; 111-Bottom wall; 112-Side wall; 12-Middle frame; 13-Support part; 14-Circuit board; 2-Display module; 21-Light-transmitting area; 22-Cover plate; 23-Wire layer; 3-Ambient light sensor; 31-Photosensitive part; 4-Reflective layer; 5-First ink layer; 6-Second ink layer; 7-First seal; 8-Second seal; Z-Thickness direction. Detailed Implementation

[0037] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0038] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0039] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0040] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0041] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 1 exemplarily shows that the electronic device 100 is a mobile phone, which includes a screen 110. The color temperature of the screen 110 is adjusted by receiving external ambient light from an ambient light sensor, thereby improving the screen display experience. Compared with conventional screen brightness adjustment, adjusting the screen color temperature requires a higher amount of ambient light. For conventional products, the screen includes a glass cover, and only the glass cover portion is retained at the position on the screen corresponding to the ambient light sensor, while other layers at the corresponding position on the screen are removed, thereby reducing the screen's impact on light transmittance. However, removing some of the screen's layers will reduce the screen's reliability, and the screen is easily damaged when squeezed or impacted. In addition, for screens without a glass cover, the screen layers severely attenuate the amount of light entering, resulting in insufficient ambient light and unstable color temperature adjustment. Among them, for screen layers, as the wavelength of visible light decreases, the light transmittance also decreases sharply. Therefore, since the wavelength of blue light is relatively small, the amount of blue light entering is a design bottleneck for the ambient light function.

[0043] Figure 2 is a schematic diagram of ambient light propagating through the screen to the ambient light sensor in related technologies. As shown in Figure 2, the ambient light sensor 120 has a photosensitive unit 121. The portion of ambient light that passes through the screen 110 and enters the photosensitive unit 121 is the usable light L1, which can be used to adjust the color temperature. The portion of ambient light that illuminates the ambient light sensor 120 but cannot enter the photosensitive unit 121 is invalid light L2. This portion of light L2 cannot be used to adjust the color temperature, resulting in light loss and hindering the accuracy of color temperature adjustment.

[0044] Therefore, this application provides an electronic device, which can be a mobile phone as shown in Figure 1, or a computer, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, robotic arm, camera, robot, or smart home device (such as television, air conditioner, robot vacuum cleaner, speaker, set-top box), relay, customer premises equipment (CPE), etc. This embodiment does not limit the type of electronic device.

[0045] In one embodiment, the electronic device may include a body 1, an ambient light sensor 3, and a display module 2. The body 1 may be a structure in the electronic device that serves as support or barrier. The body 1 may be provided with a mounting groove 11. For example, FIG3 is a partial cross-sectional view of an electronic device provided in one embodiment of the present application. As shown in FIG3, taking a mobile phone as an example, the body 1 may be the middle frame 12 of the mobile phone, and the middle frame 12 may have a mounting groove 11 formed on it. For example, FIG4 is a partial cross-sectional view of an electronic device provided in another embodiment of the present application. As shown in FIG4, the body 1 may also be a combination of devices and structures in the electronic device. For example, the body 1 may include a support part 13 and a circuit board 14. One end of the support part 13 is connected to the display module 2, and the other end of the support part 13 is connected to the circuit board 14. The support part 13 and the circuit board 14 enclose a mounting groove 11, and the ambient light sensor 3 may be electrically connected to the circuit board 14. The support part 13 can be a part of the structure in the middle frame 12 of the mobile phone, and the circuit board 14 can be the motherboard of the mobile phone, which can realize the electrical connection between the components. By making the support part 13 and the circuit board 14 cooperate and surround to form the mounting groove 11, the internal structure and space of the mobile phone can be fully utilized, which is conducive to improving the integration and realizing the miniaturization design of the device.

[0046] Figure 5 is a partial cross-sectional view of an electronic device provided in another embodiment of this application. As shown in Figure 5, a first sealing member 7 may be provided between the support portion 13 and the display module 2. Alternatively, a second sealing member 8 may be provided between the support portion 13 and the circuit board 14. Alternatively, a first sealing member 7 may be provided between the support portion 13 and the display module 2, and a second sealing member 8 may be provided between the support portion 13 and the circuit board 14. Exemplarily, both the first sealing member 7 and the second sealing member 8 may be foam. The first sealing member 7 can achieve a seal between the support portion 13 and the display module 2, and the second sealing member 8 can achieve a seal between the support portion 13 and the circuit board 14. This allows the space within the mounting groove 11 to form a closed space, preventing light leakage and ensuring that light entering the mounting groove 11 is fully reflected and utilized, thereby improving the accuracy of color temperature adjustment.

[0047] In some embodiments, the body 1 may also be a structure on a part of a device or apparatus, and the structure on the part of the device or apparatus may form a mounting groove 11.

[0048] As shown in Figure 5, the ambient light sensor 3 can be disposed in the mounting slot 11, and the display module 2 can be connected to the main body 1 and cover the mounting slot 11. The display module 2 is used to transmit light to the ambient light sensor 3. The ambient light sensor 3 includes a photosensitive part 31, which can sense the surrounding light conditions and inform the processing chip to automatically adjust the backlight brightness, color temperature, etc. of the display. In one embodiment, the ambient light sensor 3 can be glued to the mounting slot 11 or snapped into the mounting slot 11. This embodiment does not limit the installation method of the ambient light sensor 3 in the mounting slot 11.

[0049] In this embodiment, a reflective layer 4 is provided on at least a portion of the inner wall of the mounting groove 11 and / or at least a portion of the surface of the ambient light sensor 3 and / or on at least a portion of the surface of the display module 2 facing the mounting groove 11. The reflective layer 4 is used to reflect light, and the ambient light sensor 3 is used to receive the light reflected by the reflective layer 4. The inner wall of the mounting groove 11 includes a bottom wall 111 and a side wall 112. The bottom wall 111 can be used to mount the ambient light sensor 3, and the side wall 112 can be used to house the reflective layer 4. After the display module 2 covers the mounting groove 11, a closed space is formed within the mounting groove 11. This allows light transmitted through the display module 2 into the mounting groove 11 to be fully reflected by the reflective layer 4 before entering the photosensitive part 31 of the ambient light sensor 3. This prevents light from being transmitted out of the mounting groove 11 and causing loss, improving the utilization rate of ambient light and allowing more light to enter the photosensitive part 31 of the ambient light sensor 3. This increases the amount of blue light with a shorter wavelength, thereby improving the color temperature adjustment accuracy of the display module 2.

[0050] For example, FIG6 is a schematic diagram of ambient light propagating through the display module 2 to the ambient light sensor 3 in one embodiment of the present application. As shown in FIG6, at least a portion of the inner wall of the mounting groove 11 may be provided with a reflective layer 4. The reflective layer 4 may be provided on at least a portion of the side wall 112 of the mounting groove 11. A portion of the ambient light L3 transmitted through the display module 2 can directly illuminate the photosensitive part 31, and another portion of the ambient light L4 transmitted through the display module 2 can illuminate the part of the ambient light sensor 3 located around the photosensitive part 31 and can be reflected onto the reflective layer 4. After being reflected again by the reflective layer 4, it is reflected onto the surface of the display module 2 facing the mounting groove 11, and then can be further reflected by the display module 2 to the photosensitive part 31.

[0051] For example, FIG7 is a schematic diagram of ambient light propagating through the display module 2 to the ambient light sensor 3 in another embodiment of this application. As shown in FIG7, at least a portion of the inner wall of the mounting groove 11 and at least a portion of the surface of the ambient light sensor 3 may be provided with a reflective layer 4. For example, at least a portion of the sidewall 112 of the mounting groove 11 may be provided with a reflective layer 4, and the surface of the ambient light sensor 3 facing the display module 2 may also be provided with a reflective layer 4. A portion of the ambient light L3 transmitted through the display module 2 can directly illuminate the photosensitive unit 31, and another portion of the ambient light L4 transmitted through the display module 2 can illuminate the reflective layer 4 on the ambient light sensor 3. The reflective layer 4 on the ambient light sensor 3 can reflect the light onto the reflective layer 4 on the sidewall 112 of the mounting groove 11, and the reflective layer 4 on the sidewall 112 of the mounting groove 11 can reflect the light onto the surface of the display module 2 facing the mounting groove 11, and then it can be further reflected by the display module 2 to the photosensitive unit 31.

[0052] For example, FIG8 is a schematic diagram of ambient light propagating through the display module 2 to the ambient light sensor 3 in another embodiment of this application. As shown in FIG8, a reflective layer 4 may be provided on at least a portion of the inner wall of the mounting groove 11 and the surface of the display module 2 facing the mounting groove 11. For example, a reflective layer 4 may be provided on at least a portion of the sidewall 112 of the mounting groove 11, and the display module 2 has a light-transmitting area 21. The light-transmitting area 21 can enable ambient light from outside the electronic device to be transmitted into the mounting groove 11, and the reflective layer 4 on the display module 2 does not cover the light-transmitting area 21. A portion of the ambient light L3 from the display module 2 can directly illuminate the photosensitive unit 31, while another portion of the ambient light L4 from the display module 2 can illuminate the surface of the ambient light sensor 3. The ambient light sensor 3 can reflect the light onto the reflective layer 4 on the side wall 112 of the mounting groove 11. The reflective layer 4 on the side wall 112 of the mounting groove 11 can reflect the light onto the reflective layer 4 on the display module 2 facing the mounting groove 11. Then, the reflective layer 4 on the display module 2 can further reflect the light into the photosensitive unit 31.

[0053] For example, FIG9 is a schematic diagram of ambient light propagating through the display module 2 to the ambient light sensor 3 in another embodiment of this application. As shown in FIG9, a reflective layer 4 can be provided on the surface of the display module 2 facing the mounting groove 11. For example, the display module 2 has a light-transmitting area 21, which allows ambient light from outside the electronic device to be transmitted into the mounting groove 11. The reflective layer 4 on the display module 2 does not cover the light-transmitting area 21. A portion of the ambient light L3 passing through the display module 2 can directly illuminate the photosensitive part 31, and another portion of the ambient light L4 passing through the display module 2 can illuminate the surface of the ambient light sensor 3. The ambient light sensor 3 can reflect the light onto the side wall 112 of the mounting groove 11. The side wall 112 of the mounting groove 11 can reflect the light onto the reflective layer 4 on the display module 2 facing the mounting groove 11. Then, the reflective layer 4 on the display module 2 can further reflect the light into the photosensitive part 31.

[0054] For example, FIG10 is a schematic diagram of ambient light propagating through the display module 2 to the ambient light sensor 3 in another embodiment of this application. As shown in FIG10, a reflective layer 4 can be provided on the surface of the ambient light sensor 3. For example, a reflective layer 4 can be provided on the surface of the ambient light sensor 3 facing the display module 2. A portion of the ambient light L3 passing through the display module 2 can directly illuminate the photosensitive part 31, and another portion of the ambient light L4 passing through the display module 2 can illuminate the reflective layer 4 on the ambient light sensor 3. The reflective layer 4 of the ambient light sensor 3 can reflect the light onto the side wall 112 of the mounting groove 11. The side wall 112 of the mounting groove 11 can reflect the light onto the surface of the display module 2 facing the mounting groove 11. Then, the display module 2 can further reflect the light into the photosensitive part 31.

[0055] For example, FIG11 is a schematic diagram of ambient light propagating through the display module 2 to the ambient light sensor 3 in another embodiment of this application. As shown in FIG11, a reflective layer 4 may be provided on at least a portion of the surface of the ambient light sensor 3 and the surface of the display module 2 facing the mounting groove 11. For example, a reflective layer 4 may be provided on the surface of the ambient light sensor 3 facing the display module 2, and the reflective layer 4 on the ambient light sensor 3 does not cover the photosensitive part 31. The display module 2 has a light-transmitting area 21, which allows ambient light from outside the electronic device to be transmitted into the mounting groove 11, and the reflective layer 4 on the display module 2 does not cover the light-transmitting area 21. A portion of the ambient light L3 from the display module 2 can directly illuminate the photosensitive unit 31, while another portion of the ambient light L4 from the display module 2 can illuminate the reflective layer 4 of the ambient light sensor 3. The reflective layer 4 of the ambient light sensor 3 can reflect the light onto the side wall 112 of the mounting groove 11. The side wall 112 of the mounting groove 11 can reflect the light onto the reflective layer 4 on the display module 2 facing the mounting groove 11. Then, the reflective layer 4 on the display module 2 can further reflect the light into the photosensitive unit 31.

[0056] For example, FIG12 is a schematic diagram of ambient light propagating through the display module 2 to the ambient light sensor 3 in another embodiment of this application. As shown in FIG12, at least a portion of the inner wall of the mounting groove 11, at least a portion of the surface of the ambient light sensor 3, and at least a portion of the surface of the display module 2 facing the mounting groove 11 are all provided with a reflective layer 4. For example, at least a portion of the sidewall 112 of the mounting groove 11 may be provided with a reflective layer 4. The surface of the ambient light sensor 3 facing the display module 2 is provided with a reflective layer 4, and the reflective layer 4 on the ambient light sensor 3 does not cover the photosensitive part 31. The display module 2 has a light-transmitting area 21, which allows ambient light from outside the electronic device to be transmitted into the mounting groove 11, and the reflective layer 4 on the display module 2 does not cover the light-transmitting area 21. A portion of the ambient light L3 from the display module 2 can directly illuminate the photosensitive unit 31, while another portion of the ambient light L4 from the display module 2 can illuminate the reflective layer 4 of the ambient light sensor 3. The reflective layer 4 of the ambient light sensor 3 can reflect the light onto the reflective layer 4 of the side wall 112 of the mounting groove 11. The reflective layer 4 of the side wall 112 of the mounting groove 11 can reflect the light onto the reflective layer 4 on the display module 2 facing the mounting groove 11. Then, the reflective layer 4 on the display module 2 can further reflect the light into the photosensitive unit 31.

[0057] Therefore, in the above embodiments provided in this application, ambient light that passes through the display module 2 and does not directly enter the photosensitive unit 31 will not be lost. Instead, it will enter the photosensitive unit 31 after being reflected multiple times between the ambient light sensor 3, the inner wall of the mounting groove 11 and the display module 2 through the reflective layer 4, thereby increasing the amount of light entering the photosensitive unit 31. In particular, it can increase the amount of light entering the short-wavelength blue light, which is beneficial to improving the color temperature adjustment accuracy.

[0058] While the inner wall of the display module 2, the mounting groove 11, and the surface of the ambient light sensor 3 have a certain reflective ability, their reflective ability for light with shorter wavelengths is far less than that of the reflective layer 4. Therefore, in this embodiment, by providing one or more of the reflective layers 4 in the display module 2, the inner wall of the mounting groove 11, and the surface of the ambient light sensor 3, the reflective ability for light of specific wavelengths can be improved, such as the reflective ability for blue light with wavelengths between 400nm and 500nm. This allows more blue light to enter the photosensitive part 31 of the ambient light sensor 3, thereby improving the accuracy of color temperature adjustment.

[0059] In one embodiment, the reflective layer 4 may include a metal coating or a white paint layer. Exemplarily, the metal coating may include metal coatings such as silver, aluminum, or chromium, which have excellent reflectivity for shorter wavelengths of light. The white paint layer may also have excellent reflectivity for shorter wavelengths of light, for example, a reflectivity greater than or equal to 20% for blue light with wavelengths between 400nm and 500nm. This increases the amount of shorter wavelength light entering the ambient light sensor 3, thereby improving the accuracy of color temperature adjustment. Furthermore, in other embodiments, the reflective layer 4 may also be other metal coatings or paint layers, as long as the metal coating or paint layer used in the reflective layer 4 has strong reflectivity for shorter wavelengths of light such as blue light.

[0060] In one embodiment, the reflective layer 4 can reflect light with wavelengths between 400nm and 500nm, meaning that the reflective layer 4 has a strong ability to reflect blue light. Of course, the reflective layer 4 can also reflect light of other wavelengths, but the reflective ability of the reflective layer 4 for blue light is much stronger than its ability to reflect light of other wavelengths, thereby increasing the amount of blue light with shorter wavelengths and thus improving the accuracy of color temperature adjustment.

[0061] In one embodiment, the reflective layer 4 can be formed on at least a portion of the inner wall of the mounting groove 11 and / or at least a portion of the surface of the ambient light sensor 3 and / or the display module 2 facing at least a portion of the surface of the mounting groove 11 by printing, sputtering, or vapor deposition processes. These processes can ensure the reliability of the reflective layer 4 adhering to the corresponding surface, while facilitating the formation of the reflective layer 4 on different surfaces. Furthermore, in other embodiments, other processes can be used to form the reflective layer 4 on the corresponding surface, which is not limited in this embodiment.

[0062] Figure 13 is a schematic diagram of ambient light propagating through the display module 2 to the ambient light sensor 3 in another embodiment of this application. As shown in Figure 13, the display module 2 includes a cover plate 22 and a wiring layer 23, which are stacked together. The cover plate 22 can be a glass cover plate or a flexible cover plate, and includes the aforementioned light-transmitting area 21. The wiring layer 23 can be disposed on the side of the cover plate 22 facing the ambient light sensor 3, and includes transmission lines for transmitting signals. Along the thickness direction Z of the display module 2, at least a portion of the projection of the transmission line does not coincide with the projection of the light-transmitting area 21. The transmission line is typically made of an opaque material, for example, copper wire. By ensuring that at least a portion of the projection of the transmission line does not overlap with the projection of the light-transmitting area 21, the transmission line can avoid blocking ambient light, which is beneficial for more ambient light to be transmitted from the light-transmitting area 21 into the mounting groove 11, thereby increasing the light transmittance. This, in turn, increases the amount of ambient light entering the ambient light sensor 3, especially increasing the amount of shorter wavelength blue light entering the sensor and improving the color temperature adjustment accuracy.

[0063] In one embodiment, the display module 2 includes a display area for displaying content. Along the thickness direction Z of the display module 2, the projection of the ambient light sensor 3 coincides with the projection of the display area. Since some transmission lines in the wiring layer 23 have a certain spacing in a direction perpendicular to the thickness direction Z of the display module 2, ambient light can be transmitted through this spacing to the ambient light sensor 3. Therefore, when the ambient light sensor 3 is positioned relative to the display area along the thickness direction Z of the display module 2, ambient light can be transmitted through the spacing between the transmission lines to the ambient light sensor 3, and further reflected by the reflective layer 4 within the mounting slot 11, thereby improving the utilization rate of shorter wavelength light such as blue light.

[0064] In one embodiment, the display module 2 may further include a non-display area, which is an area not used to display content, such as the black border area at the edge of the phone or the area of ​​the front-facing camera. Along the thickness direction Z of the display module 2, the projection of the ambient light sensor 3 coincides with the projection of the non-display area. In the non-display area, the arrangement of transmission lines in the wiring layer 23 is more flexible, allowing the transmission lines to avoid the light-transmitting area 21 used for light transmission, thereby improving the transmittance of ambient light. That is, when the ambient light sensor 3 is positioned relative to the non-display area in the thickness direction Z of the display module 2, ambient light can still be transmitted to the ambient light sensor 3 through the light-transmitting area 21 avoided by the transmission lines, and can be further reflected by the reflective layer 4 in the mounting groove 11, thereby improving the utilization rate of shorter wavelength light such as blue light.

[0065] Figure 14 is a schematic diagram of ambient light propagating through the display module 2 to the ambient light sensor 3 in another embodiment of this application. As shown in Figure 14, a first ink layer 5 is disposed between the cover plate 22 and the wiring layer 23. Along the thickness direction Z of the display module 2, the projection of the first ink layer 5 coincides with the projection of the light-transmitting area 21. The first ink layer 5 can be a semi-transparent ink, which has a certain light transmission effect and can also block light of a certain wavelength. For example, the display module 2 has a high transmittance for light with wavelengths above 650nm. In order to balance the entry of light of different wavelengths into the ambient light sensor 3, the first ink layer 5 can appropriately reduce the amount of light other than blue light entering the light-transmitting area 21, while relatively increasing the amount of blue light entering the light-transmitting area 21.

[0066] Figure 15 is a schematic diagram of ambient light propagating through the display module 2 to the ambient light sensor 3 in another embodiment of this application. As shown in Figure 15, a second ink layer 6 is disposed between the cover plate 22 and the wiring layer 23. Along the thickness direction Z of the display module 2, the projection of the second ink layer 6 does not coincide with the projection of the light-transmitting area 21, and the light transmittance of the second ink layer 6 is less than that of the first ink layer 5. The second ink layer 6 has a greater light-blocking ability than the first ink layer 5, meaning it has less light transmission capability. The second ink layer 6 reduces the transmittance of most longer wavelengths of light, thereby facilitating the balance of various wavelengths of light and improving the accuracy of color temperature adjustment.

[0067] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electronic device, characterized in that, include: The main body is provided with a mounting slot; An ambient light sensor is disposed in the mounting slot; A display module is connected to the main body and covers the mounting slot. The display module is used to transmit light to the ambient light sensor. A reflective layer is provided on at least a portion of the inner wall of the mounting groove and / or at least a portion of the surface of the ambient light sensor and / or on at least a portion of the surface of the display module facing the mounting groove. The reflective layer is used to reflect light, and the ambient light sensor is used to receive the light reflected by the reflective layer.

2. The electronic device according to claim 1, characterized in that, The display module includes a cover plate and a wiring layer, wherein the cover plate and the wiring layer are stacked together. The cover plate includes a light-transmitting area, and the wiring layer includes transmission lines. Along the thickness direction of the display module, at least a portion of the projection of the transmission lines does not coincide with the projection of the light-transmitting area.

3. The electronic device according to claim 2, characterized in that, A first ink layer is provided between the cover plate and the wiring layer, and the projection of the first ink layer coincides with the projection of the light-transmitting area along the thickness direction of the display module.

4. The electronic device according to claim 3, characterized in that, A second ink layer is provided between the cover plate and the wiring layer. Along the thickness direction of the display module, the projection of the second ink layer does not coincide with the projection of the light-transmitting area, and the light transmittance of the second ink layer is less than that of the first ink layer.

5. The electronic device according to any one of claims 1-4, characterized in that, The main body includes a support part and a circuit board. One end of the support part is connected to the display module, and the other end of the support part is connected to the circuit board. The support part and the circuit board form the mounting groove. The ambient light sensor is electrically connected to the circuit board.

6. The electronic device according to claim 5, characterized in that, A first seal is provided between the support portion and the display module; and / or, a second seal is provided between the support portion and the circuit board.

7. The electronic device according to any one of claims 1-6, characterized in that, The reflective layer includes a metallic coating or a white paint layer.

8. The electronic device according to any one of claims 1-7, characterized in that, The reflective layer is formed by printing, sputtering, or vapor deposition processes on at least a portion of the inner wall of the mounting groove and / or at least a portion of the surface of the ambient light sensor and / or the display module facing the mounting groove.

9. The electronic device according to any one of claims 1-8, characterized in that, The reflective layer has a reflectivity of 20% or greater for blue light with wavelengths between 400 nm and 500 nm.

10. The electronic device according to any one of claims 1-9, characterized in that, The wavelength of the light reflected by the reflective layer is between 400nm and 500nm.

11. The electronic device according to any one of claims 1-10, characterized in that, The display module includes a display area for displaying content images. Along the thickness direction of the display module, the projection of the ambient light sensor coincides with the projection of the display area.

12. The electronic device according to any one of claims 1-10, characterized in that, The display module includes a non-display area, and along the thickness direction of the display module, the projection of the ambient light sensor coincides with the projection of the non-display area.

Images