Electronic device

Abstract

The present application relates to the technical field of electronic products. Disclosed is an electronic device. The electronic device has a touch function, and comprises a display screen cover plate, a housing, a light emitting element and a light receiving element. The display screen cover plate comprises a touch portion and edge portions surrounding the touch portion; the edge portions comprise a first edge portion and a second edge portion, the first edge portion comprising a first inclined surface, the second edge portion comprising a second inclined surface, the first inclined surface and the second inclined surface being inclined relative to a first plane, and the first plane being perpendicular to the thickness direction of the display screen cover plate. The display screen cover plate and the housing jointly define a cavity, the light emitting element being arranged in the cavity at a position corresponding to the first inclined surface, and the light receiving element being arranged in the cavity at a position corresponding to the second inclined surface. Thus, the display screen cover plate can satisfy both the sealing requirement and the light propagation requirement, so as to implement a touch function and a sealing function, thus effectively reducing the overall size of electronic devices and facilitating miniaturization.

Description

electronic devices

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 5, 2024, with application number 202410028340.9 and application name “Electronic Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic products, and in particular to an electronic device. Background Art

[0003] With the advancement of technology, electronic devices (such as smart watches and smart bracelets) have become indispensable in people's daily lives, resulting in increasingly demanding requirements for electronic devices. For example, on the one hand, electronic devices are expected to be usable in a variety of environments, such as washing hands, bathing, swimming, and diving, so electronic devices need to have underwater touch functions. On the other hand, electronic devices are expected to be smaller, lighter, and more portable for users.

[0004] However, although the current touch control solutions of electronic devices can realize underwater touch control, they will increase the overall size of the electronic devices, which is not conducive to the miniaturization development of electronic devices.

[0005] Summary of the Invention

[0006] In order to solve the above technical problems, the present application provides an electronic device. The present application is introduced from multiple aspects below, and the implementation methods and beneficial effects of the following multiple aspects can be referenced to each other.

[0007] The first aspect of the present application provides an electronic device. The electronic device has a touch function and includes a display cover, a housing, a light emitting element, and a light receiving element. The display cover includes a touch portion and an edge portion surrounding the touch portion, the edge portion including a first edge portion and a second edge portion, the first edge portion including a first inclined surface, the second edge portion including a second inclined surface, the first inclined surface and the second inclined surface being inclined relative to a first plane, and the first plane being perpendicular to the thickness direction of the display cover. The display cover and the housing together form a cavity, the light emitting element being located in the cavity at a position corresponding to the first inclined surface, and the light receiving element being located in the cavity at a position corresponding to the second inclined surface.

[0008] According to the embodiment of the present application, the first inclined surface of the first edge portion is capable of reflecting light from the light emitting element.

[0009] When the electronic device is in a non-touch state, that is, when the user is not touching the touch portion of the display cover of the electronic device, the medium outside the display cover can be water, air, etc. In this case, the light reflected by the first inclined surface can be totally reflected within the touch portion until it reaches the second inclined surface of the second edge portion and is reflected by the second inclined surface to the light receiving element.

[0010] When an electronic device is in touch mode—that is, when a user touches the touch-sensitive portion of the display cover—the medium outside the display cover changes from water or air to another medium (e.g., the user's finger). This changes the refractive index of the medium outside the display cover, disrupting total internal reflection of light within the touch-sensitive portion of the display cover. Consequently, the light receiving element is unable to receive light from the light emitting element, or receives light with a weaker intensity. This allows touch sensing to be achieved based on the light reception by the light receiving element.

[0011] The display cover can simultaneously meet the requirements of sealing and light transmission, thereby achieving both touch and sealing functions. Therefore, the electronic device no longer needs to include an additional light-transmitting seal, thereby reducing the thickness and space occupied by the light-transmitting seal, effectively reducing the overall size of the electronic device and promoting miniaturization.

[0012] In a possible implementation of the first aspect, an inclination angle of the first inclined surface relative to the first plane is 16°-43°.

[0013] In this way, the incident angle of light incident on the touch part can meet the total reflection condition when the electronic device is in a non-touch state, while not meeting the total reflection condition when the electronic device is in a touch state. As a result, when the electronic device is in a non-touch state, the light can be fully reflected and propagated inside the touch part, and when the electronic device is in a touch state, the light cannot be fully reflected and propagated inside the touch part, thereby realizing touch sensing.

[0014] In a possible implementation of the first aspect, the thickness of the touch portion is 0.8 mm-2.5 mm.

[0015] In this way, it can be ensured that the touch portion of the display cover will not be easily broken due to being too thin, and at the same time it will not be too thick so that the total reflection step length of light inside the touch portion is too large, thereby resulting in low touch accuracy.

[0016] In a possible implementation of the first aspect, the light emitted by the light emitting element is totally reflected in the touch portion, and the total reflection step length of the light in the touch portion is 0-6 mm, thereby ensuring that the electronic device has good touch accuracy.

[0017] In a possible implementation of the first aspect above, the light transmittance of the display screen cover is greater than 80%.

[0018] In a possible implementation of the first aspect, the display screen cover is made of sapphire or glass.

[0019] The second aspect of the present application provides an electronic device. This electronic device has a touch function and includes a display cover, a light emitting element, and a light receiving element. The display cover includes a touch portion and an edge portion surrounding the touch portion, the edge portion including a first edge portion and a second edge portion. The first edge portion includes a first inclined surface that is inclined relative to a first plane, and the second edge portion includes a second inclined surface that is inclined relative to the first plane. The first plane is perpendicular to the thickness direction of the display cover. The light emitting element is disposed on the first inclined surface of the first edge portion, and the light receiving element is disposed on the second inclined surface of the second edge portion.

[0020] According to the embodiment of the present application, the first inclined surface of the first edge portion is capable of transmitting light from the light emitting element.

[0021] When the electronic device is in a non-touch state, that is, when the user is not touching the touch portion of the display cover of the electronic device, the medium outside the display cover can be water or air. In this case, light transmitted by the first inclined surface can be totally reflected within the touch portion until it reaches the second inclined surface of the second edge portion and passes through the second inclined surface to enter the light receiving element.

[0022] When an electronic device is in touch mode—that is, when a user touches the touch-sensitive portion of the display cover—the medium outside the display cover changes from water or air to another medium (e.g., the user's finger). This changes the refractive index of the medium outside the display cover, disrupting total internal reflection of light within the touch-sensitive portion of the display cover. Consequently, the light receiving element is unable to receive light from the light emitting element, or receives light with a weaker intensity. This allows touch sensing to be achieved based on the light reception by the light receiving element.

[0023] The display cover can simultaneously meet the requirements of sealing and light transmission, thereby achieving both touch and sealing functions. Therefore, the electronic device no longer needs to include an additional light-transmitting seal, thereby reducing the thickness and space occupied by the light-transmitting seal, effectively reducing the overall size of the electronic device and promoting miniaturization.

[0024] In a possible implementation of the second aspect, the inclination angle of the first inclined surface relative to the first plane is 41°-78°.

[0025] In this way, the incident angle of light incident on the touch part can meet the total reflection condition when the electronic device is in a non-touch state, while not meeting the total reflection condition when the electronic device is in a touch state. As a result, when the electronic device is in a non-touch state, the light can be fully reflected and propagated inside the touch part, and when the electronic device is in a touch state, the light cannot be fully reflected and propagated inside the touch part, thereby realizing touch sensing.

[0026] In a possible implementation of the second aspect, the thickness of the touch portion is 0.8 mm-2.5 mm.

[0027] In this way, it can be ensured that the touch portion of the display cover will not be easily broken due to being too thin, and at the same time it will not be too thick so that the total reflection step length of light inside the touch portion is too large, thereby resulting in low touch accuracy.

[0028] In a possible implementation of the second aspect, the light emitted by the light emitting element is totally reflected and propagates in the touch portion, and the total reflection step length of the light in the touch portion is 0-6 mm, thereby ensuring that the electronic device has good touch accuracy.

[0029] In a possible implementation of the second aspect, the light transmittance of the display screen cover is greater than 80%.

[0030] In a possible implementation of the second aspect, the display screen cover is made of sapphire or glass.

[0031] The third aspect of the present application provides an electronic device. The electronic device has a touch function and includes a display cover, a shell, a light emitting element, and a light receiving element. The display cover includes a touch portion and an edge portion surrounding the touch portion, and the edge portion includes a first edge portion and a second edge portion. The display cover and the shell together form a cavity, the light emitting element is provided at a position in the cavity corresponding to the first edge portion, and the light receiving element is provided at a position in the cavity corresponding to the second edge portion. A first light guide is provided inside the first edge portion, and the first light guide extends from a side of the first edge portion facing the light emitting element to the top surface of the first edge portion. A second light guide is provided inside the second edge portion, and the second light guide extends from a side of the second edge portion facing the light receiving element to the top surface of the second edge portion.

[0032] According to an embodiment of the present application, the first light guide can guide the light emitted by the light emitting element to the top surface of the first edge portion, wherein a portion of the light can be emitted from the top surface of the first edge portion, including the light emitted to the top surface of the second edge portion.

[0033] When placed underwater, the electronic device is subject to water pressure. Because the first and second edge portions are supported by the housing, they do not experience significant deformation. However, the top surface of the touchscreen portion, under the influence of the water pressure, will be concave inward relative to the top surfaces of the first and second edge portions. Alternatively, in one possible implementation, the top surface of the touchscreen portion may include a curved surface that is concave inward relative to the top surfaces of the first and second edge portions.

[0034] In this way, when the electronic device placed underwater is in a non-touch state, that is, when the user does not touch the touch part of the display cover of the electronic device, light can be directly emitted from the first edge portion into the second edge portion, and then be concentratedly guided by the second light guide to the light receiving element.

[0035] When an underwater electronic device is in touch mode—that is, when a user touches the touch-sensitive portion of the display cover—the user obstructs light traveling along the top surface of the touch-sensitive portion, preventing the light-receiving element from receiving light from the light-emitting element or causing the light received from the light-emitting element to be weak. This allows touch sensing to be achieved based on the light-receiving element's ability to receive light.

[0036] The display cover can simultaneously meet the requirements of sealing and light transmission, thereby achieving both touch and sealing functions. Therefore, the electronic device no longer needs to include an additional light-transmitting seal, thereby reducing the thickness and space occupied by the light-transmitting seal, effectively reducing the overall size of the electronic device and promoting miniaturization.

[0037] In a possible implementation of the third aspect, the top surface of the touch portion includes a curved surface, which is recessed relative to the top surfaces of the first edge portion and the second edge portion along a thickness direction of the display cover.

[0038] In a possible implementation of the third aspect above, the light emitting element is arranged on the bottom surface of the display screen cover plate, and the bottom surface of the display screen cover plate is also provided with light-transmitting ink, which is used to filter out light other than the light emitted by the light-emitting element, and the orthographic projection of the light-transmitting ink on the first plane at least partially overlaps with the orthographic projection of the light emitting element on the first plane, and the first plane is perpendicular to the thickness direction of the display screen cover plate.

[0039] In this way, the light-transmitting ink not only prevents light leakage from the electronic device, but also does not block the light emitted by the light-emitting element, thus enabling touch functionality. As a result, the light-transmitting ink can share some space with the light-emitting element, effectively reducing the width of the black border on the screen and improving the display quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] FIG1 shows an exemplary structure of an electronic device in an embodiment of the present application;

[0041] FIG2 is a schematic diagram showing reflective optical touch in some embodiments;

[0042] FIG3 shows a schematic diagram of direct optical touch in some other embodiments;

[0043] FIG4A shows a schematic structural diagram of an electronic device according to an embodiment of the present application;

[0044] FIG4B is a schematic diagram showing a light propagation path in an electronic device according to an embodiment of the present application;

[0045] FIG5 is a schematic diagram showing the dimensions of the inclination angle of the first inclined surface relative to the first plane in an embodiment of the present application;

[0046] FIG6A shows a schematic structural diagram of an electronic device according to an embodiment of the present application;

[0047] FIG6B is a schematic diagram showing a light propagation path in an electronic device according to an embodiment of the present application;

[0048] FIG7A is a schematic diagram showing a light emitting element disposed on the bottom surface of a display screen cover in an embodiment of the present application;

[0049] FIG7B is a schematic diagram showing a light emitting element disposed on a first inclined surface in an embodiment of the present application;

[0050] FIG8 shows an exemplary configuration of the first inclined surface in an embodiment of the present application;

[0051] FIG9A shows a schematic structural diagram of an electronic device according to an embodiment of the present application;

[0052] FIG9B is a schematic diagram showing a light propagation path in an electronic device according to an embodiment of the present application;

[0053] FIG10 shows another structural schematic diagram of a light guide member in an embodiment of the present application;

[0054] FIG. 11 shows an exemplary arrangement of common ink in an embodiment of the present application. DETAILED DESCRIPTION

[0055] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0056] The embodiments of the present application are used to provide an electronic device that can realize underwater touch control and has a relatively small overall size, which is conducive to miniaturization.

[0057] It is understood that the electronic devices provided by this application include, but are not limited to, wearable devices such as smart watches, smart bracelets, smart glasses (e.g., augmented reality (AR) glasses, virtual reality (VR) glasses, and mixed reality (MR) glasses), mobile phones, tablet personal computers, and other electronic devices that need to be used underwater or in environments with high humidity. For the sake of convenience, the following description uses a smart watch as an example to introduce the technical solution of this application.

[0058] Figure 1 illustrates an exemplary structure of an electronic device 1 according to an embodiment of the present application. Referring to Figure 1 , electronic device 1 includes a main body 10 and two straps 20. The two straps 20 are connected to opposite sides of main body 10 and can be detachably locked to each other, allowing electronic device 1 to be worn on a user's wrist.

[0059] It is understood that the main body 10 of the electronic device 1 in the example shown in FIG1 is a flat cylindrical structure extending along direction A. The cylindrical structure may include a cylindrical structure and a structure similar to a cylindrical structure (for example, the outer surface of the cylindrical structure may be partially concave or partially convex). In other embodiments, the main body 10 may also be a rectangular parallelepiped structure or other special-shaped structure, and this application does not impose any limitation on this.

[0060] The following describes the technical solution of the present application using the main body 10 shown in Figure 1 as an example. Continuing with Figure 1, in some embodiments of the present application, the main body 10 includes a display cover 100 and a housing 200. The display cover 100 is mounted on the housing 200. When the electronic device 1 is worn on a user's wrist, the display cover 100 of the electronic device 1 faces away from the user's wrist, while the housing 200 conforms to the user's wrist.

[0061] The display cover 100 and the housing 200 may form a cavity (not shown). A touch-sensitive layer (not shown), a display assembly (not shown), and other components may be provided within the cavity, allowing a user to interact with the display cover 100 by touching the display cover 100. For example, the display cover 100 may be made of a translucent material (e.g., glass, sapphire, etc.) to avoid obstructing the image and affecting the viewing experience.

[0062] In some technical solutions, capacitive touch solutions can be used to implement the above-mentioned touch functions. However, when a user uses a capacitive touch smartwatch underwater, because water is conductive, the user cannot directly touch the display cover to achieve touch sensing. Instead, the user must use other insulating objects (for example, insulating gloves) to cut through the water. The smartwatch then achieves touch sensing by comparing the capacitance difference between the part cut by the insulating object and the part not cut by the insulating object. However, this method greatly affects the user's touch experience and has low touch accuracy, making it currently unsuitable for underwater touch scenarios.

[0063] To this end, in other technical solutions, the touch function can be realized through an optical touch solution.

[0064] In some embodiments, a reflective optical touch solution is used to implement touch functionality. Figure 2 shows a schematic diagram of reflective optical touch in some embodiments. Referring to Figure 2, electronic device 1a includes a light-emitting element 300, a light-receiving element 400, a first reflective element 510, a second reflective element 520, a first light-transmitting seal 610, and a second light-transmitting seal 620. The display cover 100a, housing 200, first light-transmitting seal 610, and second light-transmitting seal 620 collectively form a cavity S1a. The light-emitting element 300, light-receiving element 400, first reflective element 510, and second reflective element 520 are all located within cavity S1a. Furthermore, along direction A, the light-emitting element 300, first reflective element 510, and first light-transmitting seal 610 are located on opposite sides of the display cover 100a, while the light-receiving element 400, second reflective element 520, and second light-transmitting seal 620 are located on opposite sides of the display cover 100a. For example, the light emitting element 300 may be disposed on a printed circuit board 700 (PCB), and the light emitting element 300 may be controlled by the printed circuit board 700 to emit light.

[0065] When the electronic device 1a is in a non-touch state, that is, when the user does not touch the display cover 100a, the light L0 emitted by the light emitting element 300 can pass through the display cover 100a along direction A and be incident on the first reflecting element 510, and then be reflected by the first reflecting element 510 along direction B to the first light-transmitting seal 610, and then be emitted from the cavity S1a through the first light-transmitting seal 610 and propagate above the display cover 100a along direction B, and then pass through the second light-transmitting seal 620 and be incident on the second reflecting element 520, and then be reflected by the second reflecting element 520 to the display cover 100a, and pass through the display cover 100a and be incident on the light receiving element 400.

[0066] When the electronic device 1a is in touch state, that is, when the user touches the display cover 100a, the propagation path of the light L0 will be blocked, so that the light receiving element 400 cannot receive the light L0. In this way, touch sensing can be achieved based on the reception of the light L0 by the light receiving element 400.

[0067] The reflective optical touch solution described above provides a light-transmitting seal (e.g., a first light-transmitting seal 610 and a second light-transmitting seal 620) on the display cover 100a. This ensures the sealing of the cavity S1a without blocking the propagation of the light L0. However, the need for additional light-transmitting seals and additional structural members to secure the light-transmitting seals results in a thicker body 10a, and thus a larger overall size of the electronic device 1a. This solution is only suitable for large-screen devices and is currently difficult to apply to underwater touch scenarios for small-sized devices.

[0068] In other embodiments, a direct optical touch solution is used to achieve underwater touch. Figure 3 shows a schematic diagram of direct optical touch in other embodiments. Referring to Figure 3, electronic device 1a includes a first light-transmitting seal 610 and a second light-transmitting seal 620, but no reflective element. Along direction B, the light-emitting element 300 and the light-receiving element 400 are disposed on opposite sides of the display cover 100a.

[0069] When the electronic device 1a is in a non-touch state, that is, when the user is not touching the display cover 100a, light L1 emitted by the light-emitting element 300 can pass through the first light-transmitting seal 610 along direction B, exit the cavity S1a, propagate above the display cover 100a along direction B, and then pass through the second light-transmitting seal 620 to be incident on the light-receiving element 400. When the electronic device 1a is in a touch state, that is, when the user touches the display cover 100a, the propagation path of the light L0 is similarly blocked, preventing the light-receiving element 400 from receiving the light L0. In this way, touch sensing can be achieved based on the light-receiving element 400's reception of the light L0.

[0070] In order to achieve a sealing effect without blocking the propagation of the light L0, the above-mentioned direct optical touch solution also requires additional light-transmitting seals (for example, a first light-transmitting seal 610 and a second light-transmitting seal 620) to be provided on the display cover 100, and additional structural members are required to fix the light-transmitting seals, which results in a thicker thickness of the main body 10a. In addition, since the light-emitting element 300 and the light-receiving element 400 are respectively provided on opposite sides of the display cover 100a, the light-emitting element 300 and the light-receiving element 400 will also occupy a certain amount of additional installation space, which results in a larger bottom surface area of ​​the main body 10a. Therefore, the overall size of the electronic device 1a is larger. This solution is also only applicable to large-screen devices with larger sizes, and is currently difficult to apply to underwater touch scenarios of small-sized devices.

[0071] To address the above-mentioned issues, in this embodiment, the display cover plate is used to transmit light and thereby realize the touch function. Therefore, there is no need to provide an additional light-transmitting seal to achieve both light transmission and sealing functions. This can effectively reduce the overall size of the electronic device and promote the development of miniaturization. The following describes the technical solution of this application in conjunction with the accompanying drawings.

[0072] Figure 4A is a schematic diagram of the structure of the electronic device 1A in an embodiment of the present application. Figure 4B is a schematic diagram of the propagation path of the light ray L0 in the electronic device 1A in an embodiment of the present application. Referring to Figures 4A and 4B, the main body 10 of the electronic device 1A includes a display cover 100, a housing 200, a light emitting element 300, and a light receiving element 400. The display cover 100 and the housing 200 together form a cavity S1. The light emitting element 300 and the light receiving element 400 are both located within the cavity S1. It can be understood that the cavity S1 is a sealed cavity so as to be waterproof and dustproof.

[0073] The display cover 100 includes a touch portion (e.g., the touch portion 130 described below) and an edge portion (e.g., the first edge portion 110 and the second edge portion 120 described below). The edge portion surrounds the touch portion and is connected to the touch portion. The edge portion is used to securely install the display cover 100. For example, the edge portion can be securely connected to the housing 200 to mount the display cover 100 on the housing 200. The touch portion 130 is used for touch sensing, displaying images, etc.

[0074] For example, when the display cover 100 is circular as shown in FIG1 , the touch portion is circular, and the edge portion is annular and disposed around the periphery of the touch portion. For another example, when the display cover 100 is rectangular, the touch portion is rectangular, and the edge portion includes four sides connected end to end, forming a rectangular frame overall, and is disposed around the touch portion.

[0075] The light emitting element 300 and the light receiving element 400 are arranged at different positions corresponding to the edge portion in the cavity S1. The light emitting element 300 is used to emit light L0. For example, the light emitting element 300 may include but is not limited to any one of a point light source (for example, a light-emitting diode (LED), a laser diode (LD), etc.), a linear light source or a surface light source. The wavelength of the light L0 can cover the ultraviolet band to the infrared band. For example, the light L0 can be infrared light. The embodiment of the present application does not specifically limit this. The light receiving element 400 is used to receive the light L0 from the light emitting element 300, and convert it into an electrical signal, and then transmit the electrical signal to a signal processing module (not shown) in the electronic device 1A for realizing touch operation. For example, the light receiving element 400 includes but is not limited to a photodiode (PD), a phototransistor, and the like. In some embodiments, there may be multiple light emitting elements 300 and multiple light receiving elements 400. These multiple light emitting elements 300 and multiple light receiving elements 400 may be distributed in an array at different locations corresponding to the edge portion of cavity S1, with each corresponding to the other. For ease of understanding, the following description of the technical solution of this application uses a pair of light emitting elements 300 and light receiving elements 400 as an example.

[0076] It can be understood that the light L0 emitted by the light-emitting element 300 primarily enters the display cover plate 100 from the edge portion corresponding to the light-emitting element 300, then passes through the touch portion and enters the edge portion corresponding to the light-receiving element 400. Finally, it exits the display cover plate 100 from the edge portion corresponding to the light-receiving element 400 and enters the light-receiving element 400. Therefore, to facilitate illustration of the propagation path of the light L0 in the display cover plate, FIG4A shows a cross-sectional view of the electronic device 1A along the line connecting the light-emitting element 300 and the light-receiving element 400.

[0077] In this cross section, the edge portion may include a first edge portion 110 and a second edge portion 120 , wherein the light emitting element 300 is disposed at a position corresponding to the first edge portion 110 in the cavity S1 , and the light receiving element 400 is disposed at a position corresponding to the second edge portion 120 in the cavity S1 .

[0078] The following describes an exemplary propagation path of the light ray L0 emitted by the light emitting element 300 with reference to the accompanying drawings. For ease of understanding, different propagation segments of the light ray L0 are labeled as light ray L1, light ray L2, and light ray L3, respectively.

[0079] In some feasible solutions, the surfaces of the first edge portion 110 and the second edge portion 120 of the display screen cover 100 may be set as inclined surfaces, and the inclined surfaces serve as reflective surfaces, thereby achieving propagation of the light L0 inside the display screen cover 100 .

[0080] For ease of understanding, before introducing the propagation path of the light L0 , the exemplary structure of the display screen cover 100 is first introduced with reference to the accompanying drawings.

[0081] Continuing with Figures 4A and 4B , first edge portion 110 includes a top surface 110A and a bottom surface 110B. Second edge portion 120 includes a top surface 120A and a bottom surface 120B. Touch portion 130 includes a top surface 130A and a bottom surface 130B. Top surface 110A, top surface 130A, and top surface 120A are sequentially connected to form the top surface of display cover 100. Bottom surface 110B, bottom surface 130B, and bottom surface 120B are sequentially connected to form the bottom surface of display cover 100.

[0082] In some embodiments of the present application, the top surface 110A of the first edge portion 110 includes a first inclined surface 111A. The top surface 120A of the second edge portion 120 includes a second inclined surface 121A. The first and second inclined surfaces 111A and 121A are inclined relative to the first plane F1. That is, the first inclined surface 111A has an inclination angle (e.g., inclination angle α described below) relative to the first plane F1. The first plane F1 is perpendicular to the direction A (as an example of the thickness direction of the display cover 100). Along the direction A, the light emitting element 300 is positioned opposite the first inclined surface 111A of the first edge portion 110, and the light receiving element 400 is positioned opposite the second inclined surface 121A of the second edge portion 120.

[0083] The first inclined surface 111A of the first edge portion 110 can reflect the light L1 from the light emitting element 300 to form the light L2.

[0084] When electronic device 1A is in a non-touch state, that is, when the user is not touching touch portion 130 of display cover 100 of electronic device 1A, the medium outside display cover 100 may be water, air, or the like. In this case, light L2 may be totally reflected within touch portion 130 and propagate until it reaches second inclined surface 121A of second edge portion 120. Second inclined surface 121A of second edge portion 120 then reflects light L2, forming light L3 that travels toward light receiving element 400.

[0085] When electronic device 1A is in touch mode, that is, when a user touches touch portion 130 of display cover 100 of electronic device 1A, the medium outside display cover 100 changes from water or air to another medium (e.g., the user's finger). This means that the refractive index of the medium outside display cover 100 changes, disrupting the total internal reflection of light L2 within touch portion 130 of display cover 100. Consequently, light receiving element 400 is unable to receive light from light emitting element 300, or the received light from light emitting element 300 is weak. In this way, touch sensing can be achieved based on the light reception by light receiving element 400.

[0086] The above-mentioned display cover plate 100 can simultaneously meet the sealing requirements and the propagation requirements of the light L0, thereby realizing the touch function and the sealing function. In addition, the light L0 is propagated from the inside of the display cover plate 100. Compared with the solution in which the display cover plate 100a, the housing 200, the first light-transmitting seal 610 and the second light-transmitting seal 620 jointly enclose the cavity S1a in the examples shown in Figures 2 and 3 above, the present application only requires the display cover plate 100 and the housing 200 to enclose the closed cavity S1, and no additional light-transmitting seal is required, thereby reducing the thickness space occupied by the light-transmitting seal, thereby effectively reducing the overall size of the electronic device 1A, which is conducive to miniaturization. At the same time, it also effectively avoids the problem of dust accumulation on the light-transmitting seal after long-term use affecting the touch performance.

[0087] Secondly, in the examples shown in Figures 2 and 3 above, the first reflective element 510, the second reflective element 520, the first light-transmitting seal 610, and the second light-transmitting seal 620 are all disposed on the display cover 100a. This places significant pressure on the display cover 100a, and because there are many components, each component requires waterproofing, making waterproofing difficult and hindering underwater touch control. In the present application, however, there is no need to additionally include reflective elements, light-transmitting seals, and other components on the display cover 100. The structure is simpler, the support pressure on the display cover 100 is lower, and reliability is improved. Furthermore, the number of components is relatively small, effectively reducing the difficulty of waterproofing.

[0088] Finally, compared with the current capacitive touch solution, the electronic device provided by this application can achieve underwater touch without going through an insulating medium, is simple to operate, and provides a good underwater touch experience.

[0089] An exemplary configuration of the inclination angle α of the first inclined surface 111A relative to the first plane F1 is described below with reference to the accompanying drawings.

[0090] FIG5 is a schematic diagram showing the dimensions of the inclination angle α of the first inclined surface 111A relative to the first plane F1 in an embodiment of the present application. Referring to FIG5 , if the inclination angle α of the first inclined surface 111A relative to the first plane F1 is too small, the incident angle θ (θ=2α) at ​​which the light ray L2 is incident on the touch portion 130 will be too small, failing to satisfy the total internal reflection condition when the electronic device 1A is in a non-touch state. In other words, when the electronic device 1A is in a non-touch state, the light ray L2 will not be able to propagate through total internal reflection within the touch portion 130. If the inclination angle α of the first inclined surface 111A relative to the first plane F1 is too large, the incident angle θ at which the light ray L2 is incident on the touch portion 130 will be too large, satisfying the total internal reflection condition when the electronic device 1A is in both the touch and non-touch states. In other words, when the electronic device 1A is in the touch state, the light ray L2 will still be able to propagate through total internal reflection within the touch portion 130.

[0091] Therefore, in some embodiments of the present application, the inclination angle α of the first inclined surface 111A relative to the first plane F1 can be 16°-43°, so that the incident angle θ of the light L2 incident on the touch part 130 can meet the total reflection condition when the electronic device 1A is in a non-touch state, while not meeting the total reflection condition when the electronic device 1A is in a touch state. As a result, when the electronic device 1A is in a non-touch state, the light L2 can be fully reflected and propagated inside the touch part 130, and when the electronic device 1A is in a touch state, the light L2 cannot be fully reflected and propagated inside the touch part 130, thereby realizing touch sensing.

[0092] 5 , in some embodiments of the present application, the inclination angle α of the first inclined surface 111A relative to the first plane F1 and the incident angle θ of the light L2 incident on the touch portion 130 may satisfy the following relationship:

[0093] α=0.5θ± β (1)

[0094] arcsin(n1 / n0)<θ≤arcsin(n2 / n0) (2)

[0095] In formula (1), β is the fluctuation range of the processing angle error. For example, β can be 0°-8°, for example, 0°, 1°, 2°, etc.; in formula (2), n0 is the refractive index of the display cover 100; n1 is the refractive index of the external medium of the display cover 100 when the electronic device 1A is in a non-touch state; n2 is the refractive index of the external medium of the display cover 100 when the electronic device 1A is in a touch state.

[0096] For example, assume β is 5°. Display cover 100 is made of sapphire, with a refractive index n0 = 1.77. When electronic device 1A is in a non-touch state, the external medium to display cover 100 is water, with a refractive index n1 = 1.33 and arcsin(n1 / n0) = 48.71°. When electronic device 1A is in a touch state, the external medium to display cover 100 is a user's finger, with a refractive index n2 = 1.4 and arcsin(n2 / n0) = 52.27°.

[0097] When the inclination angle α of the first inclined surface 111A relative to the first plane F1 is 25°±5°, the corresponding incident angle θ of the light L2 incident on the touch portion 130 can be 50°, which is between 48.71° and 52.27°, thereby satisfying the total reflection condition when the electronic device 1A is in a non-touch state, but not satisfying the total reflection condition when the electronic device 1A is in a touch state, thereby realizing underwater touch sensing.

[0098] For another example, assume β is 8°. Display cover 100 is made of glass with a refractive index n0 of 1.51. When electronic device 1A is in a non-touch state, the external medium to display cover 100 is water with a refractive index n1 of 1.33 and an arcsin (n1 / n0) of 61.74°. When electronic device 1A is in a touch state, the external medium to display cover 100 is a user's finger with a refractive index n2 of 1.4 and an arcsin (n2 / n0) of 70°.

[0099] When the inclination angle α of the first inclined surface 111A relative to the first plane F1 is 32°±8°, the corresponding incident angle θ of the light L2 incident on the touch portion 130 can be 64°, which is between 61.74° and 70°, thereby satisfying the total reflection condition when the electronic device 1A is in a non-touch state, but not satisfying the total reflection condition when the electronic device 1A is in a touch state, thereby realizing underwater touch sensing.

[0100] In addition, since the refractive index of air is smaller than that of water, the electronic device 1A provided in the present application can realize touch sensing in the air while realizing underwater touch sensing.

[0101] It can be understood that the configuration of the second inclined surface 121A is substantially the same as the configuration of the first inclined surface 111A. For details, please refer to the above description of the first inclined surface 111A, which will not be repeated here.

[0102] Continuing with FIG. 5 , in some embodiments of the present application, the thickness D1 of the touch portion 130 of the display cover 100 is 0.8 mm to 2.5 mm, for example, 0.8 mm, 0.9 mm, or 2.5 mm. This ensures that the touch portion 130 of the display cover 100 is not too thin and easily broken, while also preventing it from being too thick, which would cause a large total reflection step length D2 of light L2 within the touch portion 130 and thus result in low touch accuracy. In some embodiments, the total reflection step length D2 of light L2 within the touch portion 130 is 0-6 mm.

[0103] Each time the light ray L2 encounters the top surface 130A of the touch portion 130, it undergoes total reflection at a certain position on the top surface 130A of the touch portion 130. The distance between any two adjacent positions is called the total reflection step length. For example, the distance between positions P1 and P2 is the total reflection step length D2 of the light ray L2 in the touch portion 10.

[0104] It can be understood that the smaller the total reflection step length D2 of the light L2 in the touch part 130, the more times the light L2 is totally reflected on the top surface 130A of the touch part 130. When the user touches the touch part 130, it is easier to affect the total reflection propagation of the light L2, that is, the higher the touch accuracy.

[0105] 5 , in some embodiments of the present application, the total reflection step length D2 of the light L2 in the touch portion 130 and the thickness D1 of the touch portion 130 of the display cover 100 may satisfy the following relationship:

[0106] D2=2D1tanθ (3)

[0107] In formula (3), θ is the incident angle of the light L2 incident on the touch portion 130 .

[0108] For example, according to the above embodiment, assuming that the display screen cover 100 is made of sapphire and θ is 50°, when the thickness D1 of the touch portion 130 is 0.8 mm, the total reflection step length D2 of the light L2 in the touch portion 130 can be set to 1.91 mm. For another example, assuming that the display screen cover 100 is made of glass and θ is 64°, when the thickness D1 of the touch portion 130 is 0.8 mm, the total reflection step length D2 of the light L2 in the touch portion 130 can be set to 3.28 mm.

[0109] It is understood that the above size parameters are merely exemplary. In other embodiments, other size parameters may be set according to actual needs.

[0110] For example, in some embodiments, the display screen cover 100 may be made of other materials, such as any other material with a light transmittance greater than 80%. Accordingly, the refractive index n0 may be other values.

[0111] For another example, in some embodiments, when the electronic device 1A is in a non-touch state, the medium outside the display screen cover 100 may also be other media, such as air, and accordingly, the refractive index n1 may be other values.

[0112] For another example, in some embodiments, when the electronic device 1A is in a touch state, the medium outside the display screen cover 100 may also be other media, such as a stylus, and accordingly, the refractive index n2 may be other values.

[0113] In some other feasible solutions, the first inclined surface 111A of the first edge portion 110 and the second inclined surface 121A of the second edge portion 120 may be used as transmission surfaces, thereby achieving propagation of the light L0 inside the display screen cover 100 .

[0114] Specifically, Figure 6A shows a schematic diagram of the structure of an electronic device 1B according to an embodiment of the present application. Figure 6B shows a schematic diagram of the propagation path of light L2 in the electronic device 1B according to an embodiment of the present application. Compared to the electronic device 1A shown in Figures 4A and 4B, the electronic device 1B differs in that the first inclined surface 111A and the second inclined surface 121A function differently. This will be described in detail below with reference to the accompanying drawings.

[0115] Referring to Figures 6A and 6B , light-emitting element 300 is disposed on first inclined surface 111A of first edge portion 110, and light-receiving element 400 is disposed on second inclined surface 121A of second edge portion 120. Light emitted by light-emitting element 300 can pass through first inclined surface 111A into first edge portion 110, then enter second edge portion 120 after being totally reflected by touch portion 130, and finally pass through second inclined surface 121A into light-receiving element 400. In this case, the light propagation path within display cover 100 corresponds to the aforementioned light L2.

[0116] When the electronic device 1B is in a non-touch state, that is, when the user is not touching the touch portion 130 of the display cover 100 of the electronic device 1B, the medium outside the display cover 100 may be water or air. In this case, the light L2 may be totally reflected within the touch portion 130 and propagate until it reaches the second inclined surface 121A of the second edge portion 120, passes through the second inclined surface 121A, and enters the light receiving element 400.

[0117] When electronic device 1B is in touch mode, that is, when a user touches touch portion 130 of display cover 100 of electronic device 1B, the medium outside display cover 100 changes from water or air to another medium (e.g., the user's finger). This means that the refractive index of the medium outside display cover 100 changes, disrupting the total internal reflection of light L2 within touch portion 130 of display cover 100. Consequently, light receiving element 400 is unable to receive light from light emitting element 300, or the received light from light emitting element 300 is weak. In this way, touch sensing can be achieved based on the light reception by light receiving element 400.

[0118] Figure 7A shows a schematic diagram of the light emitting element 300 disposed on the bottom surface of the display screen cover 100 in an embodiment of the present application. Figure 7B shows a schematic diagram of the light emitting element 300 disposed on the first inclined surface 111A in an embodiment of the present application.

[0119] Comparing Figures 7A and 7B , when the light emitting element 300 is disposed on the bottom surface 110B of the first edge portion 110, the light emitting element 300 and the portion of the housing 200 used to support the display cover 100 occupy a larger space in direction B, thereby forming a wider screen black border 220. In the present application, however, the light emitting element 300 is disposed on the first inclined surface 111A. Therefore, the bottom surface of the display cover 100 only needs to be provided with the portion of the housing 200 used to support the display cover 100. This effectively reduces the width of the screen black border 220 (e.g., the dimension along direction B), thereby improving the display effect.

[0120] In addition, the other structures and deformation methods of the electronic device 1B are substantially the same as those of the electronic device 1A shown in Figures 4A and 4B above. For example, the setting method of the incident angle θ of the light L2 incident on the touch part 130 in the electronic device 1B is substantially the same as that of the electronic device 1A, and will not be repeated here.

[0121] For another example, the configuration of the inclination angle α of the first inclined surface 111A relative to the first plane F1 in electronic device 1B is substantially the same as that of electronic device 1A. This configuration is sufficient so long as the incident angle θ of light L2 incident on the touch portion 130 satisfies the total internal reflection condition when electronic device 1B is in a non-touch state while not satisfying the total internal reflection condition when electronic device 1B is in a touch state. This configuration is not further described here. For example, in the embodiment of the present application, θ = α, and the inclination angle α of the first inclined surface 111A relative to the first plane F1 can be 41°-78°.

[0122] For another example, the thickness D1 of the touch portion 130 of the display cover 100 and the total reflection step length D2 of the light L2 in the touch portion 130 in the electronic device 1B are substantially the same as those in the electronic device 1A and are not described in detail here.

[0123] It will be appreciated that the above embodiment illustrates only the example of the top surface 110A of the first edge portion 110 of the display cover plate 100 including the first inclined surface 111A and the top surface 120A of the second edge portion 120 including the second inclined surface 121A. However, the present application is not limited thereto. In other embodiments, the inclined surfaces may be arranged in other ways, which are not limited in the present application, as long as they can achieve propagation of the light L0 within the display cover plate 100.

[0124] For example, in some other embodiments of the present application, the bottom surface 110B of the first edge portion 110 may include a first inclined surface, and the bottom surface 120B of the second edge portion 120 may include a second inclined surface, and the first inclined surface and the second inclined surface may be inclined in opposite directions relative to the first plane F1.

[0125] For another example, in some other embodiments of the present application, the top surface 110A of the first edge portion 110 may include a first inclined surface, the bottom surface 120B of the second edge portion 120 may include a second inclined surface, and the first and second inclined surfaces may be inclined in the same direction relative to the first plane F1. Alternatively, the bottom surface 110B of the first edge portion 110 may include a first inclined surface, the top surface 120A of the second edge portion 120 may include a second inclined surface, and the first and second inclined surfaces may be inclined in the same direction relative to the first plane F1.

[0126] For another example, in this embodiment, one end of the first inclined surface 111A of the top surface 110A of the first edge portion 110 is directly connected to the top surface 130A of the touch portion 130A, and the other end is connected to the side surface of the first edge portion 110 via a plane parallel to the first plane F1. In other words, the top surface 110A of the first edge portion 110 includes a plane parallel to the first plane F1 and a first inclined surface 111A inclined relative to the first plane F1. The plane is connected to the top surface 130A of the touch portion 130 via the first inclined surface 111A.

[0127] In other embodiments, the first inclined surface 111A of the first edge portion 110 may also be arranged in other ways on the top surface 110A of the first edge portion 110. For example, Figure 8 shows an exemplary arrangement of the first inclined surface 111A in an embodiment of the present application. Referring to Figure 8, in some embodiments, the top surface 110A of the first edge portion 110 includes the first inclined surface 111A and a plane 112A perpendicular to the first plane F1. One end of the first inclined surface 111A is connected to the top surface 130A of the touch portion 130 through the plane 112A, and the other end of the first inclined surface 111A is directly connected to the side surface 110C of the first edge portion 110.

[0128] For another example, the top surface 110A of the first edge portion 110 may include a first inclined surface 111A and may not include a plane parallel to or perpendicular to the first plane F1. In other words, one end of the first inclined surface 111A is directly connected to the top surface 130A of the touch portion 130, and the other end is directly connected to the side surface 110C of the first edge portion 110.

[0129] In addition, it should be noted that the top surface 130A and bottom surface 130B of the touch portion 130 shown in the above figures are both flat. In other embodiments, the top surface 130A and bottom surface 130B of the touch portion 130 may also be curved. For example, the top surface 130A and the top surface 130B may be slightly concave inward or slightly convex outward. This application does not impose any restrictions on this, as long as the touch sensing function can be achieved.

[0130] In other possible implementations, when the electronic device 1C is placed underwater, it is subjected to water pressure. Because the first edge portion 110 and the second edge portion 120 are supported by the housing 200, the first edge portion 110 and the second edge portion 120 do not experience significant deformation. However, under the influence of the water pressure, the top surface 130A of the touch portion 130 is recessed inward in direction A relative to the top surfaces 110A and 120A of the first and second edge portions 110 and 120, respectively. This allows light emitted by the light-emitting element 300 to exit from the top surface 110A of the first edge portion 110 and directly enter the top surface 120A of the second edge portion 120, thereby reaching the light-receiving element 400 without passing through the interior of the touch portion 130.

[0131] Specifically, Figure 9A shows a schematic diagram of the structure of an electronic device 1C underwater in an embodiment of the present application. Figure 9B shows a schematic diagram of the propagation path of light L2 in the electronic device 1C in an embodiment of the present application. Compared to the electronic device 1A shown in Figures 4A and 4B, the electronic device 1C differs in the propagation mode of light L2, which is described in detail below in conjunction with the accompanying drawings.

[0132] A light guide 500A (as an example of a first light guide) is provided inside the first edge portion 110 . The light guide 500A extends from a side surface (eg, bottom surface 110B) of the first edge portion 110 facing the light emitting element 300 to a top surface 110A of the first edge portion 110 .

[0133] A light guide 500B (as an example of a second light guide) is provided inside the second edge portion 120 . The light guide 500B extends from the top surface 120A of the second edge portion 120 to a side surface (eg, bottom surface 120B) of the second edge portion 120 facing the light receiving element 400 .

[0134] The light outlet of the light guide 500A corresponds to the light inlet of the light guide 500B. For example, along direction A, the distance between the light outlet of the light guide 500A and the bottom of the housing 200 is the same as the distance between the light inlet of the light guide 500B and the bottom of the housing 200.

[0135] Based on this, the light emitted by the light emitting element 300 can be concentratedly guided by the light guide 500A to the top surface 110A of the first edge portion 110. Among them, a portion of the light can be emitted from the top surface 110A of the first edge portion 110, including the light L2 emitted to the top surface 120A of the second edge portion 120.

[0136] When the electronic device 1C placed underwater is in a non-touch state, that is, when the user does not touch the touch portion 130 of the display cover 100 of the electronic device 1C, the light L2 can be directly emitted from the first edge portion 110 into the second edge portion 120, and then concentratedly guided by the light guide 500B to the light receiving element 400.

[0137] When the underwater electronic device 1C is in touch mode, that is, when a user touches the touch portion 130 of the display cover 100 of the electronic device 1C, the user obstructs the light L2 propagating along the top surface 130A of the touch portion 130. This prevents the light receiving element 400 from receiving the light from the light emitting element 300, or causes the light received from the light emitting element 300 to be weak in intensity. In this way, touch sensing can be achieved based on the light reception by the light receiving element 400.

[0138] In other embodiments of the present application, the top surface 130A of the touch portion 130 may also include a curved surface that is recessed inward along direction A relative to the top surface 110A of the first edge portion 110 and the top surface 120A of the second edge portion 120 , thereby allowing the light L2 to be emitted directly from the first edge portion 110 to the second edge portion 120 .

[0139] Continuing with Figures 9A and 9B , in some embodiments of the present application, light guides 500A and 500B may be optical fibers. For example, light guides 500A and 500B may be similarly "S"-shaped. In other embodiments, light guides 500A and 500B may have other shapes, which are not limited by the present application, as long as they can achieve the aforementioned light guiding effect.

[0140] For example, Figure 10 shows another structural diagram of the light guide 500A and the light guide 500B in an embodiment of the present application. Referring to Figure 10 , the light guide 500A and the light guide 500B can also be similarly "L"-shaped.

[0141] In some embodiments, ink is also applied to the display cover 100 to prevent light leakage. For example, FIG11 illustrates an exemplary arrangement of ordinary ink 600C in an embodiment of the present application. Referring to FIG11 , ordinary ink 600C is applied to the bottom surface of the display cover 100. Because ordinary ink 600C lacks selective light transmission, it blocks light of all wavelengths. Therefore, ordinary ink 600C and the light-emitting element 300 and light-receiving element 400 need to be staggered on the bottom surface of the display cover 100 to avoid blocking light emitted by the light-emitting element 300 and light received by the light-receiving element 400. This results in the ordinary ink 600C and the light-emitting element 300 and light-receiving element 400 occupying a larger space along the first plane F1, thereby forming a wider black border 220 on the screen.

[0142] Therefore, as shown in FIG. 9A , FIG. 9B and FIG. 10 , in some embodiments of the present application, the bottom surface of the display screen cover 100 may be provided with light-transmitting ink 600A and light-transmitting ink 600B that selectively transmit light.

[0143] Specifically, the orthographic projection of light-transmitting ink 600A on first plane F1 at least partially overlaps with the orthographic projection of light-emitting element 300 on first plane F1, and the orthographic projection of light-transmitting ink 600B on first plane F1 at least partially overlaps with the orthographic projection of light-receiving element 400 on first plane F1. Furthermore, light-transmitting inks 600A and 600B can transmit light emitted by light-emitting element 300 and filter out light other than the light emitted by light-emitting element 300.

[0144] In this way, light-transmitting inks 600A and 600B prevent light leakage from electronic device 1C while also not blocking light emitted by light-emitting element 300, thereby enabling touch functionality. Consequently, light-transmitting ink 600A can share a portion of the space along first plane F1 with light-emitting element 300, and light-transmitting ink 600B can share a portion of the space along first plane F1 with light-receiving element 400. This effectively reduces the width of screen black border 220 (e.g., the dimension along first plane F1) and improves the display quality.

[0145] It will be appreciated that the above embodiment is merely illustrative of the arrangement of the light emitting element 300 on the bottom surface 110B side of the first edge portion 110 and the light receiving element 400 on the bottom surface 120B side of the second edge portion 120. However, the present application is not limited thereto. In other embodiments, the light emitting element 300 and the light receiving element 400 may be arranged in other manners, which are not limited in the present application.

[0146] For example, the light emitting element 300 may be disposed on a side of the first edge portion 110, and the light guide 500A may extend from the side of the first edge portion 110 to the top surface 110A of the first edge portion 110 to guide the light emitted by the light emitting element 300 from the side of the first edge portion 110 to the top surface 110A of the first edge portion 110. Similarly, the light receiving element 400 may be disposed on a side of the second edge portion 120, and the light guide 500B may extend from the side of the second edge portion 120 to the top surface 120A of the second edge portion 120 to guide the light L2 from the top surface 120A of the second edge portion 120 to the light receiving element 400.

[0147] The above describes the implementation methods of the present application by means of specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation methods. On the contrary, the purpose of introducing the application in conjunction with the implementation methods is to cover other options or modifications that may be extended based on the claims of the present application. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details are omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other unless there is a conflict.

[0148] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "outside", "inside", "circumferential", "radial", "axial", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0149] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "dispose," "install," "connect," and "fit" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0150] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. An electronic device, characterized in that, The electronic device has a touch function and includes a display screen cover plate, a housing, a light emitting element, and a light receiving element, where: The display screen cover plate includes a touch portion and an edge portion surrounding the touch portion. The edge portion includes a first edge portion and a second edge portion. The first edge portion includes a first inclined surface that is inclined relative to a first plane. The second edge portion includes a second inclined surface that is inclined relative to the first plane. The first plane is perpendicular to the thickness direction of the display screen cover plate; The display screen cover plate and the housing together enclose a cavity. The light emitting element is disposed at a position in the cavity corresponding to the first inclined surface of the first edge portion, and the light receiving element is disposed at a position in the cavity corresponding to the second inclined surface of the second edge portion.

2. The electronic device according to claim 1, wherein The inclination angle of the first inclined surface relative to the first plane is 16° - 43°.

3. The electronic device according to claim 1, characterized in that The thickness of the touch portion is 0.8 mm - 2.5 mm.

4. The electronic device according to claim 1, wherein The light emitted by the light emitting element undergoes total reflection propagation in the touch portion, and the total reflection step length of the light in the touch portion is 0 - 6 mm.

5. The electronic device according to claim 1, wherein The light transmittance of the display screen cover plate is greater than 80%.

6. The electronic device according to claim 1, characterized in that, The material of the display screen cover plate is sapphire or glass.

7. An electronic device, characterized in that, The electronic device has a touch function and includes a display screen cover plate, a light emitting element, and a light receiving element, where: The display screen cover plate includes a touch portion and an edge portion surrounding the touch portion. The edge portion includes a first edge portion and a second edge portion. The first edge portion includes a first inclined surface that is inclined relative to a first plane. The second edge portion includes a second inclined surface that is inclined relative to the first plane. The first plane is perpendicular to the thickness direction of the display screen cover plate; The light emitting element is disposed on the first inclined surface of the first edge portion, and the light receiving element is disposed on the second inclined surface of the second edge portion.

8. The electronic device according to claim 7, characterized in that, The inclination angle of the first inclined surface relative to the first plane is 41° - 78°.

9. The electronic device according to claim 7, wherein, The thickness of the touch portion is 0.8 mm - 2.5 mm.

10. The electronic device according to claim 7, wherein The light emitted by the light emitting element undergoes total reflection propagation in the touch portion, and the total reflection step length of the light in the touch portion is 0 - 6 mm.

11. The electronic device according to claim 7, wherein The light transmittance of the display screen cover plate is greater than 80%.

12. The electronic device according to claim 7, characterized in that, The material of the display screen cover plate is sapphire or glass.

13. An electronic device, characterized in that, The electronic device has a touch function and includes a display screen cover plate, a housing, a light emitting element, and a light receiving element, where: The display screen cover plate includes a touch portion and an edge portion surrounding the touch portion. The edge portion includes a first edge portion and a second edge portion; The display screen cover plate and the housing together enclose a cavity. The light emitting element is disposed at a position in the cavity corresponding to the first edge portion, and the light receiving element is disposed at a position in the cavity corresponding to the second edge portion; A first light guide is provided inside the first edge portion, and the first light guide extends from a side surface of the first edge portion facing the light emitting element to the top surface of the first edge portion; A second light guide is provided inside the second edge portion, and the second light guide extends from a side surface of the second edge portion facing the light receiving element to a top surface of the second edge portion.

14. The electronic device according to claim 13, wherein The top surface of the touch portion includes a curved surface that is recessed relative to the top surfaces of the first edge portion and the second edge portion in the thickness direction of the display screen cover plate.

15. The electronic device according to claim 13, characterized in that, The light emitting element is provided on the bottom surface of the display screen cover plate, and a light-transmitting ink is further provided on the bottom surface of the display screen cover plate. The light-transmitting ink is used to filter out light other than the light emitted by the light emitting element, and a positive projection of the light-transmitting ink on a first plane at least partially overlaps a positive projection of the light emitting element on the first plane, where the first plane is perpendicular to the thickness direction of the display screen cover plate.

Images