Electronic equipment

Abstract

The embodiment of the invention discloses electronic equipment which can comprise handheld equipment, vehicle-mounted equipment, wearable equipment and terminal equipment or can be connected to any one of a wireless modem, a cellular phone, a smart phone, a personal digital assistant, a computer, a tablet personal computer, a notebook computer and the like. According to the embodiment of the invention, when the mainboard processes the electric signal transmitted by the ambient light sensor, a software matting algorithm does not need to be used, the calculation method is relatively simple, the corresponding position of the transparent cover plate does not need to be coated with black ink, the processing technology of the electronic equipment is simplified, and the use cost is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of communication equipment, and in particular, to an electronic device. Background Art

[0002] Electronic devices are usually equipped with ambient light sensors, which are mainly used to sense the intensity of surrounding light and output electrical signals to the motherboard of the electronic device. The motherboard automatically adjusts the brightness of the display screen according to the electrical signals, which can not only reduce the power consumption of the device and extend the service life of the device, but also protect the eyes. In view of this, ambient light sensors are widely used in electronic devices such as mobile phones and computers.

[0003] The mainstream development direction of display screens of current electronic devices is to increase the screen-to-body ratio, which limits the location of ambient light sensors to a certain extent. Therefore, how to minimize the impact of ambient light sensors on the display area of ​​the display screen is one of the important technical issues that technicians in this field are concerned about. Summary of the invention

[0004] The embodiment of the present application provides an electronic device with simple software calculation and simple manufacturing process.

[0005] The embodiment of the present application provides an electronic device, including a middle frame, a display screen and an ambient light sensor, wherein the display screen is fixed to one side of the middle frame. The display screen includes a transparent cover plate and a display module, wherein the display module includes a plurality of stacked functional layers, wherein the display module includes a first main body and a second main body connected to each other, wherein the first main body forms a display area, and the second main body forms a non-display area, wherein the second main body includes a first sub-region, wherein the sub-main body includes at least one functional layer, and wherein the sub-main body has a light transmittance of a predetermined value, that is, the first sub-region is a portion of the second main body having a functional layer and capable of transmitting light, and the number of functional layers in the first sub-region can be determined according to the light transmittance; the first sub-region can be a part of the second main body or the entire second main body.

[0006] The middle frame has a cavity, the ambient light sensor is installed inside the cavity, and the ambient light sensor is located on the side of the first sub-region away from the transparent cover plate, and the ambient light sensor can detect external light passing through the first sub-region. In other words, the external light can enter the inner cavity after passing through the first sub-region and be captured by the ambient light sensor.

[0007] In the embodiment of the present application, the external light of the electronic device can be transmitted to the ambient light sensor after passing through the transparent cover plate and the first sub-area. The ambient light sensor converts the detected light signal into an electrical signal and transmits it to the mainboard electrically connected thereto. The mainboard analyzes and processes the light signal and issues a brightness adjustment instruction to adjust the brightness of the display screen. Since the first sub-area in the embodiment of the present application does not have a light-emitting function, it will not affect the external light. The light detected by the ambient light sensor is all external light. In this way, the mainboard does not need to use a software cutout algorithm when processing the electrical signal transmitted from the ambient light sensor. The calculation method is relatively simple. In addition, the first sub-area has a predetermined light transmittance that allows external light to pass through. In this way, it is not necessary to remove all functional layers of the first sub-area, thereby reducing the processing difficulty of the display module.

[0008] In addition, to a certain extent, the first sub-area can play a shielding function, and the electrical components on the back of the internal first sub-area are not easily observed from the outside of the display screen. There is no need to apply black ink on the corresponding position of the transparent cover plate, which simplifies the processing technology of the electronic equipment and reduces the cost of use.

[0009] Furthermore, the second main body in the embodiment of the present application may not occupy the top space of the display screen, which can reduce the width of the black border of the display screen, which is conducive to improving the screen-to-body ratio. The screen-to-body ratio is the ratio of the display area in the display screen to the projection area of ​​the transparent cover of the display screen. The larger the screen-to-body ratio, the better the effect of the electronic device in displaying images.

[0010] In one example, the ambient light sensor includes a photosensitive element for detecting light signals, and the projection of the photosensitive element on the plane where the display screen is located is located within the first sub-region, that is, the photosensitive element can be located within the coverage of the first sub-region, for example, the photosensitive element is located directly behind the first sub-region. In this way, the field of view (FOV) of the ambient light sensor can be increased, and the reliability of the ambient light sensor detection can be improved.

[0011] In one example, there is also a light-diffusing plate between the second main body and the ambient light sensor, and the function of the light-diffusing plate is to evenly emit the external light entering the first sub-area to the side of the ambient light sensor. After entering from the first sub-area, the external light is first projected onto the surface of the light-diffusing plate facing the display module, and then the external light is evenly dispersed after passing through the light-diffusing plate, and a larger light-emitting surface is obtained on the side of the light-diffusing plate facing the ambient light sensor, thereby expanding the field of view of the ambient light sensor and further improving the reliability of the ambient light sensor for external light detection.

[0012] In one example, the light-diffusing plate includes a light-diffusing film, which is bonded and fixed to the middle frame or the display module. The light-diffusing film is relatively thin and occupies relatively little space, which is conducive to the installation of other electronic devices inside the electronic device and meets the requirements of the lightweight design of the electronic device.

[0013] In one example, the display module further includes an SCF layer, which is located on the surface of the functional layer away from the transparent cover plate. The SCF layer usually has poor light transmittance, so a first through hole is opened in at least a portion of the SCF layer opposite to the first sub-region, and the light homogenizer is located between the first through hole of the SCF layer and the ambient light sensor, so that external light passes through the first sub-region and the first through hole in turn to reach the ambient light sensor. The SCF layer is conducive to the rapid removal of heat from the display module and ensures the reliability of the display module.

[0014] In one example, under the condition of light with a wavelength of 550nm, the light transmittance of the first sub-area ranges from 2% to 4%. When the light transmittance is within the above range, it can not only meet the detection of external light by the ambient light sensor, but also the second main body has a better overall appearance hiding function, that is, the electronic device located on the back side of the second main body is not easy to be observed from the outside of the electronic device, and the transparent cover does not need to be coated with ink, which reduces the processing technology of the electronic device, saves costs, and the overall appearance of the electronic device is better.

[0015] In one example, in addition to the SCF layer, the display module also includes several other functional layers between the SCF layer and the transparent cover plate. The portion of the second main body that does not require light transmission is defined as a second sub-region, and the second sub-region includes the SCF layer and the functional layers located between the SCF layer and the transparent cover plate; in this way, the first sub-region can be obtained by removing the SCF layer, and the SCF layer in the second sub-region does not need to be removed. In this way, the area of ​​the SCF layer is relatively large, which improves the heat dissipation capacity, and the second sub-region is also stronger in shielding the electronic devices inside the electronic device.

[0016] In one example, the display module may be an OLED display module, the functional layer includes an OLED layer, the OLED layer includes a first part and a second part connected to each other, the first part is provided with a plurality of light emitting diodes to form a display area, and the second part may be provided in two ways:

[0017] The first configuration mode: the second part has no light emitting diode, the first main body includes the first part, and the second main body includes the second part, that is, the second main body has no light emitting diode.

[0018] The second setting method: the second part is also provided with a light-emitting diode, but the light-emitting diode in the second part is always in a non-luminous state, and the light-emitting diode in the second part is in a non-luminous state which can be controlled by software or hardware. The OLED display module has better performance and can realize the setting of a flexible screen. And in the embodiment of the present application, by reasonably setting the first part and the second part of the OLED layer, the detection of external light by the ambient light sensor can be realized without changing other functional layers. The functional layers in the first main body and the second main body can be exactly the same, and only the arrangement or control of the first part and the second part of the OLED layer is slightly different, which further reduces the assembly and processing technology of the display module.

[0019] In one example, the functional layers in the first sub-region may include but are not limited to: a polarizing layer, a touch screen layer, a thin film field effect transistor layer, a packaging layer, and a substrate. The first sub-region may include other layers of the display module except the SCF layer of the display module. Of course, in some embodiments, the light transmittance factor may be considered, and one or more layers may be removed.

[0020] In one example, the middle frame includes a support plate, and the support plate is located between the display module and the ambient light sensor. The support plate is located on the side of the display module away from the transparent cover plate, and can serve as a warehouse wall for accommodating the display module, and can also serve as a support structure for other components such as the ambient light sensor. A second through hole is provided on the support plate, and the external light entering from the first sub-area is transmitted to the ambient light sensor through the second through hole. The support plate can isolate the display screen from other electronic devices in the cavity, that is, the support plate isolates the cavity into two chambers, one chamber is equipped with a display screen, and the other chamber is equipped with other electronic devices of the electronic device. The display screen and other electronic devices can be located in independent chambers respectively to reduce mutual influence of work.

[0021] In one example, the electronic device further includes a functional module unit, the functional module unit includes an optical device, the optical device is fixed to the cavity, the second main body further has a third sub-region, the third sub-region includes a third through hole, the third through hole is a passage for light emitted or received by the optical device, the optical device and the ambient light sensor are arranged side by side along a specified direction, and the specified direction is parallel to the plane where the transparent cover plate is located;

[0022] The electronic device further comprises a shading member, which can block the light entering or exiting from the third through hole from being transmitted to the ambient light sensor.

[0023] In the embodiment of the present application, the optical device and the ambient light sensor are centrally arranged on the back side of the second main body, which can reduce the area of ​​the second main body as much as possible, increase the display area of ​​the first main body, and thus improve the display capability of the electronic device, which is also conducive to improving the overall appearance of the electronic device. At the same time, the setting of the shading member avoids the influence of the working light of the optical device on the ambient light sensor, which is conducive to the reliable operation of the ambient light sensor.

[0024] In one example, the optical device is a light source device, that is, the optical device can emit light, and the light source device can be a light-emitting component such as a soft light. The functional module also includes a light-guiding structure, which is supported by the support plate and is located between the light source device and the third through hole, and the light-guiding structure can conduct the light emitted by the light source device. The light-guiding structure can make the light emitted by the light source device propagate along a predetermined light path to achieve the functions required by the electronic device.

[0025] In one example, the light-guiding structure includes a first end face, a second end face, and a circumferential side wall, the circumferential side wall is connected between the first end face and the second end face, the first end face and the second end face are respectively facing the third through hole and the light source device, and the shading member can be a shading material layer arranged on the circumferential side wall. In this way, the light inside the light-guiding structure cannot be projected outward through the circumferential side wall, thereby avoiding the light in the light-guiding structure from affecting the operation of components such as the ambient light sensor, thereby improving the accuracy of the ambient light sensor detection. The material of the shading material layer can be a metal or non-metal that can block light, such as silver or aluminum.

[0026] In this embodiment, the method of providing a light-shielding material layer on the circumferential side wall occupies a relatively small space and is light in weight, which is conducive to the lightweight design of electronic equipment.

[0027] In one example, the first end surface covers the third through hole, and the first end surface abuts against the display module. The first end surface abuts against the display module to prevent light from leaking between the first end surface and the display module, thereby improving the working performance of the soft light and reducing the impact on the normal operation of other electronic devices in the cavity.

[0028] In one example, the cavity also has a mainboard, and the ambient light sensor and the optical device are both mounted on the mainboard, and the two can be arranged side by side. In this way, the ambient light sensor and the optical device can directly transmit the optical signal to the mainboard circuit without the need for transmission through wires and other components, thereby simplifying the structure.

[0029] In one example, the number of functional module units is two, and the optical devices in the two functional module units are separated on both sides of the ambient light sensor. The two functional module units and the ambient light sensor are arranged side by side. For example, the two functional module units are a soft light and a front camera, respectively, and the two are arranged on both sides of the ambient light sensor. The corresponding third sub-area includes two third through holes, which are used for the light emitted by the soft light to pass through and for the light entering the front camera to pass through. In this application embodiment, the ambient light sensor can make full use of the space between the two optical devices, and the second main body can be as small as possible, further increasing the area of ​​the first main body.

[0030] In one example, the optical device is at least one of a soft light or a front camera.

[0031] In one example, the display area is located outside the non-display area. The display area can completely surround the non-display area, so that the non-display area is not located in the black border area of ​​the electronic device, which can reduce the width of the black border of the display screen and help increase the screen-to-body ratio.

[0032] In one example, the non-display area is in the shape of an oblong or rectangular shape, so that the overall appearance of the electronic device is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of an electronic device in the current technology;

[0034] Figure 2 for Figure 1 The A'-A' direction only shows a cross-sectional schematic diagram of the relative positions of the display screen and the ambient light sensor;

[0035] Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0036] Figure 4 for Figure 3 A partial enlarged schematic diagram of point A in the electronic device shown;

[0037] Figure 5 for Figure 3 A cross-sectional view of a display module in the electronic device shown in the A1-A1 direction;

[0038] Figure 6 for Figure 5 A partial top view of the display module is shown;

[0039] Figure 7 for Figure 3 A cross-sectional view of the structure at position A in the electronic device shown in the figure, taken in the direction of A1-A1;

[0040] Figure 8 for Figure 7 An enlarged schematic diagram of position C in the structure shown;

[0041] Fig. 9 for Figure 8 An enlarged view of the structure at D in the middle, in which only some parts are shown;

[0042] Fig.10 for Figure 3 A rear view of the SCF layer and the display module in the electronic device, wherein the SCF layer is viewed from one side;

[0043] Fig.11 for Figure 4 A schematic diagram of the structure shown without the display screen;

[0044] Fig.12 for Fig.11 a top view of the structure shown;

[0045] Fig.13 for Figure 4 A cross-sectional view of the light guide structure and the shielding member;

[0046] Fig.14 for Figure 3 A schematic diagram of the structure of a middle frame of an electronic device is shown.

[0047] in Figures 1 to 14 The one-to-one correspondence between the reference numerals and component names is as follows:

[0048] 1' ambient light sensor; 2' display screen; 21' glass cover; 22' display module; 22a' light-transmitting through hole;

[0049] 1 middle frame; 1a cavity; 11 metal body; 12 plastic body; 101 support plate; 101a through hole; 1-1 step surface;

[0050] 2 display screen; 21 transparent cover plate; 22 display module; 22-1 first main body; 22-2 second main body; 22-21 first sub-region; 22-22 second sub-region; 22-23 third sub-region; 2a boundary line; 22a first hole; 22b second hole;

[0051] 3 ambient light sensor; 31 photosensor;

[0052] 4 Motherboard;

[0053] 5 functional module unit; 51 optical device; 52 light guide structure; 521 first end surface; 522 second end surface; 523 third end surface; 53 front camera module;

[0054] 6 homogeneous plates;

[0055] 7 rear camera;

[0056] 8SCF layer;

[0057] 9 Shading element. DETAILED DESCRIPTION

[0058] The inventor of this application has conducted a lot of research on the setting of ambient light sensors in electronic devices. The research found that the current setting of ambient light sensors is roughly as follows: In the first way, the ambient light sensor is set below the display area of ​​the display screen. The mainboard calculates the current ambient light intensity based on the electrical signal received from the ambient light sensor and the pre-stored cutout algorithm, and then adjusts the brightness of the display screen. In the second way, the ambient light sensor 1' is integrated with the front soft light or / and the front camera. Please refer to Figure 1 As shown, Figure 1 and Figure 2 ,in Figure 1 It is a structural diagram of an electronic device in current technology. Figure 2 for Figure 1 The A'-A' direction only shows a cross-sectional schematic diagram of the relative positions of the display screen and the ambient light sensor. In this method, the display module 22' in the display area of ​​the display screen 2' is partially cut away to open a larger light-transmitting through hole 22a'. The external light passes through the glass cover 21' of the display screen 2' and then passes through the light-transmitting through hole 22a' to be transmitted to the ambient light sensor 1'. In order to improve the appearance of the whole machine, the corresponding position of the glass cover 21' needs to be coated with black ink to shield the ambient light sensor 1' and other components, and additional components need to be added to make the ambient light sensor 1' as close to the display screen 2' as possible.

[0059] Among them, in the first method, the electrical signal of the ambient light sensor 1' needs to be combined with the software cutout algorithm to achieve brightness adjustment of the display screen 2', and the software complexity is relatively high; in the second method, the second through hole partially opened in the display module 22' is larger, which affects the display function of the display screen 2', and the position of the glass cover 21' corresponding to the ambient light sensor 1' needs to be coated with black ink, which makes the process complicated.

[0060] Therefore, how to overcome at least one of the above-mentioned defects is a technical problem that needs to be solved urgently by technicians in this field.

[0061] Based on the above research findings, the inventors of the present application explored and carried out a large number of experiments, and proposed an electronic device with a simple calculation method and simple process.

[0062] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present application, the embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0063] The embodiments of the present application relate to an electronic device, wherein the electronic device may include a handheld device, an in-vehicle device, a wearable device, a terminal device, or other processing devices connected to a wireless modem, and may also include a cellular phone, a smart phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, a camcorder, a video recorder, a camera, a smart watch, a smart wristband, an augmented reality (AR) device, a virtual reality (VR) device, an in-vehicle computer, and other terminal devices. The embodiments of the present application do not impose any special restrictions on the specific form of the above-mentioned terminal devices. For ease of understanding, the following description is made by taking the electronic device as a mobile phone as an example.

[0064] The following describes the technical solution and technical effects by taking a mobile phone as an example of the electronic device provided in the embodiment of the present application. Of course, those skilled in the art should understand that the technical solution of the embodiment of the present application can be applied to mobile phones, and can also be applied to electronic devices other than mobile phones, such as notebooks, etc.

[0065] See also Figure 3 and Figure 4 , Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application; Figure 4 for Figure 3 A partial enlarged schematic diagram of point A in the electronic device shown.

[0066] Please refer to Figure 3 The electronic device 100 in the embodiment of the present application includes a middle frame 1, a display screen 2 and an ambient light sensor 3. For a mobile phone, the middle frame 1 is the middle frame of the mobile phone. Figure 3 The middle frame 1 forms a cavity 1a, and electronic devices (not shown in the figure) such as a mainboard 4, an ambient light sensor 3, a processor, an internal memory, a charging management module, a power management module, and a battery of the electronic device 100 can be installed inside the cavity 1a, and the display screen 2 is arranged on one side of the middle frame 1. The middle frame 1 plays a role in supporting and protecting various electronic devices.

[0067] Please refer again Figure 4 In the embodiment of the present application, the middle frame 1 may include a metal body 11 and a plastic body 12. The plastic body 12 is formed by an injection molding process, and the metal body 11 may be formed by a stamping process. The plastic body 12 and the metal body 11 are combined into a whole in the injection molding process. The cavity 1a has a support plate 101, which can support related electronic devices of the electronic device 100.

[0068] like Figure 4 As shown, the display screen 2 includes a display module 22 and a transparent cover plate 21. The display module 22 is used to display images and videos, etc. The display module 22 can use an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), a quantum dot light-emitting diode (QLED), an electrophoretic display technology (E-Ink), etc. The transparent cover plate 21 covers the outside of the display module to protect the display module 22. The transparent cover plate 21 can be a glass cover plate, and of course it can also be other transparent materials that can play a protective function. For example, the transparent cover plate 21 can be a transparent polyimide. The display screen 2 can also have a touch function, that is, the display screen 2 can be a touch screen.

[0069] Please refer to Figure 5 , Figure 5 for Figure 3 The cross-sectional view of the display module in the electronic device shown in the A1-A1 direction, the display module 22 generally includes N stacked functional layers. Taking OLED as an example, the display module 22 may include but is not limited to the following functional layers: polarizing layer 221, touch screen sensor (Touch Pad sensor, TP Senor) (not shown in the figure), encapsulation layer (Thin Film Encapsulation, TFE) (not shown in the figure), organic light emitting diode layer 222, thin film field effect transistor (Thin Film Transistor, TFT) 223, back plane (back plane, BP) 224. Of course, the number of functional layers of the display module 22 may be more or less than the functional layers listed above in the present application. Among them Figure 5 The thickness of each layer shown in the figure does not represent the actual thickness of each layer, but is only a reference.

[0070] The display module 22 may be bonded to the transparent cover plate 21 via an optically clear adhesive (OCA) layer (not shown).

[0071] Please refer to Figure 5 and Figure 6 understand, Figure 6 for Figure 5 The partial top view of the display module is shown, wherein Figure 6In the structure shown, curve 2a represents the boundary between the first main body 22-1 and the second main body 22-2, wherein the portion within the circle of curve 2a is the second main body 22-2. In the embodiment of the present application, depending on whether the display module 22 emits light during use, the display module 22 further includes a first main body 22-1 and a second main body 22-2. The first main body 22-1 is mainly used to display images and video screens, that is, a light-emitting component is provided in the functional layer corresponding to the first main body 22-1, and the light-emitting component can emit light to display images under the control of the driving circuit. The second main body 22-2 does not display images and video screens when in use. The light-emitting component may not be provided in the corresponding functional layer of the second main body 22-2, or the light-emitting component in the area may be controlled not to emit light. For the OLED display module, the light-emitting diode may not be provided in the OLED layer 222 corresponding to the second main body 22-2, or the diode in the area may be controlled to be in a non-luminous state. Of course, the area may be provided with devices such as circuits that do not emit light. As Figure 4 As shown, the OLED layer 222 includes a first part 2221 and a second part 2222. The first part 2221 is located in the first main body 22-1, and a plurality of light-emitting diodes are arranged inside the first part 2221. The second part 2222 is located in the second main body 22-2. The second part 2222 is not provided with light-emitting diodes, or the second part 2222 is provided with light-emitting diodes, but the light-emitting diodes in the second part 2222 are controlled to be in a non-luminous state at all times.

[0072] The OLED display module has good performance and can realize the setting of a flexible screen. In addition, in the embodiment of the present application, by reasonably setting the first part 2221 and the second part 2222 of the OLED layer 222, the ambient light sensor 3 can detect external light without changing other functional layers. In this way, the functional layers in the first main body 22-1 and the second main body 22-2 can be exactly the same, and only the arrangement or control of the first part 2221 and the second part 2222 of the OLED layer 222 is slightly different.

[0073] The first main body 22-1 forms a display area on one side of the transparent cover 21, and the second main body 22-2 forms a non-display area on one side of the transparent cover 21. Curve 2a in the figure is also the boundary between the display area and the non-display area. The display area is located outside the non-display area, that is, the non-display area is located inside the display area. The display area can completely surround the non-display area. Please refer to Figure 7 In this way, the non-display area is not located in the black border area of ​​the electronic device, which can reduce the width of the black border area of ​​the display screen, which is conducive to increasing the screen-to-body ratio. Of course, the display area can also semi-surround the non-display area. The black border area is the area located outside the display module 22.

[0074] The non-display area may be in the shape of an oblong, a circle, a rectangle, etc. Among them, the oblong shape has a more beautiful appearance.

[0075] like Figures 3 to 5 As shown, in the embodiment of the present application, the second main body 22-2 can be surrounded by the first main body 22-1, that is, the outer periphery of the second main body 22-2 is the first main body 22-1. The relative positions of the second main body 22-2 and the first main body 22-1 are not limited to those shown in the drawings of the present application, and can be reasonably selected according to the specific electronic device 100. For example, the second main body 22-2 can also be located at the edge of the display module 22, that is, part of the second main body 22-2 is connected to the first main body 22-1.

[0076] The functional layer of the second main body 22 - 2 may be completely the same as the functional layer of the first main body 22 - 1 . Of course, the functional layer of the second main body 22 - 2 may also be a part of the functional layer of the first main body 22 - 1 .

[0077] The second main body 22-2 in the embodiment of the present application further includes a first sub-area 22-21, a second sub-area 22-22 and a third sub-area 22-23. The above three areas are mainly divided based on the different light transmittances of the second main body 22-2, among which the light transmittance value of the third sub-area 22-23 is the highest, which is used to meet the use requirements of electronic devices with relatively high light transmittance requirements, such as soft light, front camera module 53, etc. The third sub-area 22-23 is a through-hole structure, as shown in the figure, the first hole 22a and the second hole 22b. The light transmittance value of the first sub-area 22-21 is second, and the light transmittance value of the first sub-area 22-21 can meet the use requirements of the ambient light sensor 3. The light transmittance value of the second sub-area 22-22 is the lowest, and it can have all the functional layers of the display module 22 and the SCF (super clean foam, SCF) layer.

[0078] In the embodiment of the present application, the first sub-region 22-21 includes at least one functional layer, and the first sub-region 22-21 has a light transmittance of a predetermined value, which can be reasonably selected according to the use requirements of the ambient light sensor 3. In other words, the first sub-region 22-21 is a light-transmitting portion having a functional layer. Figure 6 understand, Figure 6 The area within the dotted line 8a is the first sub-area 22-21. Figure 6 The shape of the first sub-area 22-21 is only for illustration and can be any shape, can be a part of the second main body 22-2, and can also be the entire second main body 22-2. In addition, the fact that the above-mentioned predetermined values ​​are not disclosed in the embodiments of the present application does not affect the understanding and implementation of the technical solutions in the embodiments of the present application by those skilled in the art.

[0079] Please refer to Figure 7 , Figure 7 for Figure 3 A cross-sectional view of the structure at location A in the electronic device shown in the figure, taken along the A1-A1 direction.

[0080] In the embodiment of the present application, the ambient light sensor 3 is located on the side of the first sub-region 22-21 away from the transparent cover plate 21, and the ambient light sensor 3 can detect the external light passing through the first sub-region 22-21. The ambient light sensor 3 can be fixed on the main board 4, and of course, it can also be fixed on the support plate 101 of the middle frame 1 located in the cavity 1a, and the support plate 101 can be a middle plate forming a display screen installation compartment.

[0081] In the embodiment of the present application, the external light of the electronic device 100 can be transmitted to the ambient light sensor 3 after passing through the transparent cover plate 21 and the first sub-area 22-21. The ambient light sensor 3 converts the detected light signal into an electrical signal and transmits it to the mainboard 4 electrically connected thereto. The mainboard 4 analyzes and processes the light signal and issues a brightness adjustment instruction to adjust the brightness of the display screen 2. Since the first sub-area 22-2 in the embodiment of the present application does not have a light-emitting function, it will not affect the external light passing through it. The light detected by the ambient light sensor 3 is all external light. In this way, when the mainboard 4 processes the electrical signal transmitted from the ambient light sensor 3, there is no need to use a software cutout algorithm, and the calculation software is relatively simple. In addition, the first sub-area 22-21 has a predetermined light transmittance that allows external light to pass through. In this way, there is no need to remove all functional layers of the first sub-area 22-21, thereby reducing the processing difficulty of the display module.

[0082] In addition, to a certain extent, the first sub-area 22-21 can play a shielding function, and the electrical components on the back of the internal first sub-area 22-21 are not easily observed from the outside of the display screen 2. There is no need to apply black ink on the corresponding position of the transparent cover plate 21, which simplifies the processing technology of the electronic device 100 and reduces the cost of use.

[0083] Furthermore, the second main body 22-2 in the embodiment of the present application may not occupy the top space of the display screen 2, and the width of the black border of the display screen may be reduced, which is conducive to improving the screen-to-body ratio. The screen-to-body ratio is the ratio of the display area of ​​the display screen 2 to the projection area of ​​the transparent cover 21 of the display screen 2. The larger the screen-to-body ratio, the better the image display effect of the electronic device 100.

[0084] like Figure 4As shown, in the embodiment of the present application, the ambient light sensor 3 generally includes a main body (not shown) and a photosensitive element 31. The main body plays a role in supporting other electronic components on the ambient light sensor 3 including the photosensitive element 31. The photosensitive element 31 may include but is not limited to the following components: a photoresistor, a photosensitive diode, a phototransistor, etc. The photosensitive element 31 mainly plays a role in detecting light signals. Therefore, the projection of the photosensitive element 31 of the ambient light sensor 3 on the plane where the display screen 2 is located is located within the range of the first sub-area 22-21, which can improve the field of view (FOV) of the ambient light sensor 3 and improve the reliability of the detection of the ambient light sensor 3. The larger the field of view of the ambient light sensor 3, the better.

[0085] See also Figures 7 to 9 ,in, Figure 8 for Figure 7 An enlarged schematic diagram of position C in the structure shown; Fig. 9 for Figure 8 The enlarged schematic diagram of the local components of the structure at D is used to illustrate the relative position relationship between the display screen, the ambient light sensor 3, and the light-diffusing plate 6.

[0086] In order to further expand the field of view of the ambient light sensor 3, in the embodiment of the present application, the electronic device 100 may further be provided with a light-homogenizing plate 6, which is located between the second main body 22-2 and the ambient light sensor 3. The function of the light-homogenizing plate 6 is to evenly emit the external light entering the second main body 22-2 to the side of the ambient light sensor 3.

[0087] After the external light entering from the first sub-area 22-21 is projected onto the surface of the light emitting plate 6 facing the display module 22, the light emitting plate 6 will evenly disperse the external light to obtain a larger light output surface on the side of the light emitting plate 6 facing the ambient light sensor 3, thereby expanding the field of view of the ambient light sensor 3 and further improving the reliability of the ambient light sensor 3 in detecting external light.

[0088] The thickness of the light diffuser 6 can be as thin as possible to reduce the space occupied, which is conducive to the installation of other electronic devices inside the electronic device 100 and meets the requirements of the thin and light design of the electronic device 100. In one example, the light diffuser 6 is a light diffuser film, which can be fixed to the middle frame 1 by bonding, and the fixation is simple and reliable. The light diffuser 6 can be as close to one side of the display module 2 as possible.

[0089] Of course, the light-diffusing plate 6 can also be fixed on the back side of the display module 22 .

[0090] Please combine Fig. 9It is understood that in the embodiment of the present application, an SCF layer 225 may also be provided on the back side of the back plate 224 in the display module 22. The SCF layer 225 is a composite film formed by foam, foam and copper foil, which can quickly conduct the heat generated by the operation of the display module 22 to the display module 22. The back side of the substrate 224 refers to the side away from the transparent cover plate 21. The SCF layer 225 can be fixed to the back plate 224 of the display module 22 by adhesive. For the structure in which the SCF layer 225 is provided on the back side of the display module 22, since the light transmission effect of the SCF layer 225 is relatively poor, a first through hole 8a is provided in at least a part of the area of ​​the SCF layer 225 relative to the second main body 22-2, so that external light can be projected to the light scattering plate 6. The light scattering plate 6 is located between the first through hole 8a and the ambient light sensor 3.

[0091] The size and shape of the first through hole 8a can be determined according to the specific situation. Usually, the cross section of the first through hole 8a is not larger than the projection of the second main body 22-2 on the transparent cover plate 21. Fig.10 As shown, Fig.10 is the view from the SCF layer side, where Fig.10 Only the structure near the relative position between the SCF layer 225 and the second main body 22-2 is shown, and other positions are not shown. Fig.10 The division of the first sub-region 22-21, the second sub-region 22-22 and the third sub-region 22-23 in the second main body 22-2 can be further understood. The first sub-region 22-21 is the region of the second main body 22-2 that does not include the SCF layer 225, the second sub-region 22-22 is the region of the second main body 22-2 that includes the SCF layer 225, and the third sub-region 22-23 is the location where the first hole 22a and the second hole 22b are opened. In the embodiment of the present application, if other electronic devices of the electronic device 100 need to be set up, through holes can also be opened at other locations of the SCF layer 225.

[0092] Please combine again Figure 8 and Fig. 9 It is understood that in the embodiment of the present application, the support plate 101 of the middle frame 1 is located between the display module 22 and the ambient light sensor 3, and the support plate 101 can isolate the display screen 2 from other electronic devices in the cavity 1a, that is, the support plate 101 isolates the cavity 1a into two chambers, one chamber is equipped with the display screen 2, and the other chamber is equipped with other electronic devices of the electronic device 100. The display screen 2 and other electronic devices can be located in independent chambers respectively to reduce mutual influence on work. Fig.10 It is shown in the figure that a step surface 1 - 1 is also provided on the middle frame 1 , and the transparent cover plate 21 can be supported on the step surface 1 - 1 .

[0093] Please combine Fig. 9It is understood that the support plate 101 is provided with a second through hole 101 a , and the external light entering from the second main body portion 22 - 2 is transmitted to the ambient light sensor 3 through the second through hole 101 a .

[0094] In the embodiment of the present application, the provision of the support plate 101 facilitates the installation of other components of the electronic device 100 .

[0095] Please refer again Figure 7 , Fig.11 and Fig.12 In the embodiment of the present application, the electronic device 100 further includes several functional module units for realizing various functions. The functional module units include optical devices. For example, the optical device in the functional module unit may be a front camera 53 for realizing the function of taking photos or videos, or the optical device in the functional module unit may include a soft light 51, which is mainly used to process the light for taking photos to improve the quality of taking photos. Of course, the functional module units are not limited to those described herein and may also be modules for realizing other functions.

[0096] Usually, functional module units such as the front camera 53 and the soft light 51 have relatively high requirements for the transmittance of the display screen 2, so the display module 22 needs to have a third through hole to meet the light passage requirements, that is, the display screen 2 does not have the function of displaying images in the area near the front camera 53 and the soft light 51.

[0097] In the embodiment of the present application, the positions of the functional module units such as the front camera 53, the soft light 51, and the position of the ambient light sensor 3 can also be optimized to facilitate the design of the display screen 2. The embodiment of the present application takes the electronic device 100 having a front camera 53 and a soft light 51 as an example to further introduce the technical solution and technical effects.

[0098] Please refer again Figure 4 , Figure 7 and Figure 8 In the embodiment of the present application, the soft light 51, the front camera 53 and the ambient light sensor 3 are arranged side by side along the specified direction S. In the embodiment of the present application, the specified direction S is along the width direction of the electronic device 100 ( Figure 3 Of course, the specified direction S can also be along other directions parallel to the plane where the display screen 2 is located, such as the length direction of the electronic device 100, or be set at a non-90° angle to the width direction, etc.

[0099] Please refer again Figure 8The second main body 22-2 is provided with a first hole 22a (i.e., the third through hole mentioned above), and the support plate 101 is further provided with a light guide structure 52, which is located between the first hole 22a and the soft light 51, and the light emitted by the soft light 51 is transmitted to the soft light 51 through the light guide structure 52. The second main body 22-2 is further provided with a second hole 22b (i.e., the third through hole mentioned above), and the front camera 53 is arranged opposite to the second hole 22b, and the external light enters the interior of the front camera 53 through the transparent cover plate 21 and the second hole 22b for imaging.

[0100] Compared with the soft light 51, the front camera 53 and the ambient light sensor 3 being dispersedly arranged at different positions of the electronic device 100, in the embodiment of the present application, the soft light 51, the front camera 53 and the ambient light sensor 3 are concentrated on the back side of the second main body 22-2, which can minimize the area of ​​the second main body 22-2 and increase the display area of ​​the first main body 22-1, thereby improving the display capability of the electronic device 100, and is also beneficial to improving the overall appearance of the electronic device 100.

[0101] In order to minimize the influence of the light emitted by the soft light 51 on the ambient light sensor 3 when the soft light 51 is working, the embodiment of the present application further performs the following settings.

[0102] Please refer to Figure 8 and Fig.13 understand, Fig.13 for Figure 3 In the cross-sectional view of the light guide structure and the shielding member, in the embodiment of the present application, the light guide structure 52 includes a first end face 521, a second end face 522, and a circumferential side wall 523 connected between the first end face 521 and the second end face 522, the first end face 521 and the second end face 522 face the first hole 22a and the soft light lamp 51 respectively, and the circumferential side wall 523 is provided with a shielding member 9 for blocking the light entering or emitted from the first hole 22a from being transmitted to the ambient light sensor 3. In this embodiment, the shielding member 9 is a shielding material layer coated or pasted on the circumferential side wall 523, and the setting position of the shielding material layer on the circumferential side wall 53 is based on the fact that the light emitted by the soft light lamp 51 is not transmitted to the ambient light sensor 3. Of course, for the convenience of processing, the entire circumferential side wall 523 of the guide structure 52 is provided with a shielding material layer. The material of the shielding material layer can be a metal or non-metal that can block light, such as silver or aluminum. The method of providing a light-shielding material layer on the circumferential side wall 523 occupies a relatively small space and is light in weight, which is conducive to the lightweight design of the electronic device 100.

[0103] In the embodiment of the present application, by providing a shading material layer, the light emitted by the soft light lamp 51 can be transmitted only from the first hole 22a to the outside of the display screen 2, avoiding being transmitted to the ambient light sensor 3, and avoiding the light emitted by the soft light lamp 51 from interfering with the ambient light sensor 3, thereby improving the accuracy of the ambient light sensor 3 in detecting external light, and thereby improving the accuracy of the brightness adjustment of the display screen 2.

[0104] Of course, in order to block the light emitted by the soft light lamp 51 from being transmitted to the ambient light sensor 3, the shading member 9 is not limited to the shading material layer provided on the above-mentioned light guide structure 52, and can also be in other forms, such as providing a light blocking plate and other components.

[0105] In order to facilitate installation of the light guide structure 52 , the circumferential side wall 523 further has a protrusion 5232 , and the light guide structure 52 is supported on the support plate 101 via the protrusion 5232 .

[0106] Furthermore, the light guide structure 52 may also have an avoidance structure 5231 to avoid other structures in the cavity 1a to meet installation requirements. The specific structure of the light guide structure 52 is not further described herein, as long as it can meet the use requirements.

[0107] In the embodiment of the present application, the material of the light-guiding structure 52 can be glass or resin. Glass has a relatively high light-guiding capability, while resin is relatively light.

[0108] Please refer again Figure 8 In order to make the light emitted by the soft light lamp 51 to be emitted from the first hole 22a as much as possible, in the embodiment of the present application, the first end surface 521 covers the first hole 22a, and the first end surface 521 is in contact with the display module 22. The first end surface 521 and the display module 22 may be in contact directly or indirectly. Figure 8 The first end surface 521 is shown to be against the back side of the display module 22 through the SCF layer 225. The first end surface 521 is in contact with the display module 22 to prevent light from leaking between the first end surface 5 and the display module 22, thereby improving the working performance of the soft light 51 and reducing the impact on the normal operation of other electronic devices in the cavity 1a.

[0109] Of course, in addition to the above-mentioned combination of the soft light 51, the front camera 53 and the ambient light sensor 3, two front cameras 53 and the ambient light sensor 3 can also be centrally arranged, and the ambient light sensor 3 is arranged between the two front cameras 53. Of course, it is also possible to only combine the soft light 51 with the ambient light sensor 3, or to combine the front camera 53 with the ambient light sensor 3.

[0110] In addition, the functional module unit can also be other functional module units except the soft light 51 and the front camera 53. In short, the optical devices and ambient light sensors of the two functional module units are arranged side by side, so that the ambient light sensor can make full use of the space between the two optical devices and concentrate on using the second main body 22-2 as the light-transmitting area. The second main body can be as small as possible to further increase the area of ​​the first main body. At the same time, for the structure in which the SCF layer 225 is set on the back side of the display module 22, the first through hole 8a on the SCF layer 225 can meet the needs of one or more optical devices at the same time. Of course, the through holes on the SCF layer 225 can also correspond one to one with the optical devices and the ambient light sensor 3. The figure shows an embodiment in which the soft light 51 and the ambient light sensor share a first through hole 8a, and the front camera 53 corresponds to another through hole 8b alone.

[0111] Similarly, the position where the support plate 101 and the optical device are relative should also be provided with an avoidance structure, please refer to Fig.14 For example, the support plate 101 is provided with a through hole 101b and a through hole 101c, which are used to allow the soft light and the camera light to pass through respectively. In order to minimize the thickness of the electronic device, a countersunk hole can be provided on the support plate 101 for installing the light guide structure 52 and the light homogenizing plate 6. Fig.13 1 shows that the surface of the support plate 101 facing the display screen is provided with a first step surface 1011 for supporting the light guide structure 52, and the support plate 101 is also provided with a second step surface 1012 for supporting the protrusion 5232 of the light diffuser 6. In this way, the light guide structure 52 and the light diffuser 6 are at least partially located inside the support plate 101, thereby reducing the installation height of the two.

[0112] The optical device is not limited to the above-mentioned soft light 51 and front camera 53, but can also be other electronic devices, such as laser focus sensor, distance sensor, etc.

[0113] The soft light 51 can be fixed to the main board 4 together with the ambient light sensor 3. Please refer to Figure 7 The middle frame 1 has a support base 102, and the mainboard 4 is fixed on the support base 102. The height of the support base 102 can be reasonably set according to the working requirements of the ambient light sensor 3 and the soft light 51 and other design requirements of the electronic device. In this way, the ambient light sensor and the optical device can directly transmit the optical signal to the mainboard circuit without the need for transmission through wires and other components, thereby simplifying the structure.

[0114] In the embodiment of the present application, under the light condition of a wavelength of 550nm (nm is the length unit of nanometer), the light transmittance range of the second main body 22-2 is approximately 2%-4%. This can not only meet the detection of external light by the ambient light sensor 3, but also the second main body 22-2 has a better overall appearance hiding function, that is, the electronic device located on the back side of the second main body 22-2 is not easily observed from the outside of the electronic device 100, and the transparent cover 21 does not need to be coated with ink, which reduces the processing technology of the electronic device 100, saves costs, and the overall appearance of the electronic device is better.

[0115] For other structures of the electronic device 100, please refer to the current technology.

[0116] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0117] The directional terms mentioned in the embodiments of the present application, such as "inside", "outside", etc., are only references to the directions of the drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0118] In the description of the embodiments of the present application, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0119] In the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0120] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An electronic device, characterized in that: Includes the following components: a middle frame, having a cavity; A display screen, comprising a transparent cover plate and a display module, wherein the display screen is fixed to one side of the middle frame, the display module comprises a plurality of stacked functional layers, the display module comprises a first main body portion and a second main body portion connected to each other, the first main body portion forms a display area, the second main body portion forms a non-display area, the second main body portion comprises a first sub-area, the first sub-area comprises at least one of the functional layers, and the first sub-area has a light transmittance of a predetermined value; An ambient light sensor is fixed to the cavity and is located at a side of the first sub-region away from the transparent cover plate, and the ambient light sensor is used to detect external light passing through the first sub-region.

2. The electronic device according to claim 1, characterized in that: At least part of the projection of the photosensitive element of the ambient light sensor on the plane where the display screen is located is within the first sub-area.

3. The electronic device according to claim 2, characterized in that: It also includes a light scattering plate located between the first sub-area and the ambient light sensor, and the light scattering plate is used to evenly scatter the external light entering the first sub-area to a side of the ambient light sensor.

4. The electronic device according to claim 3, characterized in that: The light-diffusing plate includes a light-diffusing film, and the light-diffusing film is adhesively fixed to the middle frame or the display module.

5. The electronic device according to claim 3 or 4, characterized in that: The display module also includes an SCF layer, which is located on the surface of the functional layer away from the transparent cover plate. A first through hole is opened in at least a portion of the SCF layer opposite to the first sub-area, and the light averaging plate is located between the first through hole and the ambient light sensor.

6. The electronic device according to any one of claims 1 to 5, characterized in that: Under the condition of light with a wavelength of 550 nm, the light transmittance of the first sub-region is in the range of 2%-4%.

7. The electronic device according to claim 5, characterized in that: The second main body portion further includes a second sub-region, and the second sub-region includes the SCF layer and various functional layers located between the SCF layer and the transparent cover plate.

8. The electronic device according to any one of claims 1 to 7, characterized in that: The display module is an OLED display module, the functional layer includes an OLED layer, the OLED layer includes a first part and a second part connected to each other, the first part is provided with a plurality of light emitting diodes, the first main body includes the first part, and the second main body includes the second part. The second part has no light emitting diode, or the second part is provided with a light emitting diode and the light emitting diode in the second part is always in a non-light emitting state.

9. The electronic device according to claim 8, characterized in that: The functional layer further includes one or more of a polarizing layer, a touch screen layer, a thin film field effect transistor layer, a packaging layer and a substrate.

10. The electronic device according to any one of claims 1 to 9, characterized in that: The middle frame includes a support plate, the support plate is located between the display module and the ambient light sensor, a second through hole is provided on the support plate, and the external light entering from the first sub-area is transmitted to the ambient light sensor through the second through hole.

11. The electronic device according to claim 10, characterized in that: Also includes: a functional module unit, wherein the functional module unit includes an optical device, wherein the optical device is fixed to the cavity, wherein the second main body portion further includes a third sub-region, wherein the third sub-region includes a third through hole for allowing light emitted or received by the optical device to pass through, wherein the light source device and the ambient light sensor are arranged side by side along a specified direction, wherein the specified direction is parallel to the plane where the transparent cover plate is located; The shading member is used to block the light entering or exiting from the third through hole from being transmitted to the ambient light sensor.

12. The electronic device according to claim 11, characterized in that: The optical device is a light source device, and the functional module further includes a light guide structure, which is supported by the support plate and is located between the light source device and the third through hole for conducting light emitted by the light source device.

13. The electronic device according to claim 12, characterized in that: The light-guiding structure includes a first end face, a second end face, and a circumferential side wall connected between the first end face and the second end face, the first end face and the second end face face the third through hole and the light source device respectively, and the shading member includes a shading material layer arranged on the circumferential side wall.

14. The electronic device according to claim 13, characterized in that: The first end surface covers the third through hole, and the first end surface is in abutment contact with the display module.

15. The electronic device according to any one of claims 11 to 14, characterized in that: The cavity also has a mainboard, and the ambient light sensor and each of the optical devices are mounted on the mainboard.

16. The electronic device according to claim 14, characterized in that: The number of the functional module units is two, the optical devices of the two functional module units are located on both sides of the ambient light sensor, and each of the optical devices and the ambient light sensor is arranged side by side.

17. The electronic device according to any one of claims 11 to 16, characterized in that: The optical device is at least one of a soft light or a front camera.

18. The electronic device according to any one of claims 1 to 17, characterized in that: The display area is located at the periphery of the non-display area.

19. The electronic device according to claim 18, characterized in that: The non-display area is in the shape of an oblong circle or a rectangle.

Images