Mobile terminal and display method applied to the mobile terminal

Abstract

This disclosure relates to a mobile terminal and a display method applied to the mobile terminal. The mobile terminal includes: a housing, the housing including a back cover, the back cover having an outwardly facing projection surface; and a projection imaging device mounted on the housing, at least a portion of the projection imaging device being located outside the projection surface. The projection imaging device includes a projection module and a lens module. The projection module is used to receive display information and emit light representing the display information toward the lens module. The lens module is used to reflect the light emitted by the projection module onto the projection surface. This mobile terminal uses projection imaging, which can clearly and completely display images, avoiding the incomplete display problems of small screens or e-ink screens. It also avoids the problem of increasing the thickness of the mobile terminal by setting a secondary display screen, thus providing users with a very good user experience.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more specifically, to a mobile terminal and a display method applied to the mobile terminal. Background Technology

[0002] Currently, in order to solve the problem of front-facing cameras occupying the display screen and hindering the realization of full-screen displays, mobile terminals are equipped with a secondary display screen on the back cover.

[0003] However, secondary displays are often small or e-ink screens due to their high manufacturing cost, which can affect the display quality. In addition, placing a secondary display on the back cover increases the thickness of the mobile terminal, affecting the user experience. Summary of the Invention

[0004] The purpose of this disclosure is to provide a mobile terminal and a display method for the mobile terminal, which uses projection imaging to clearly and completely display images, avoiding the problems of incomplete display on small screens or e-ink screens, and also avoiding the problem of increasing the thickness of the mobile terminal by setting up a secondary display screen, so as to give users a very good user experience.

[0005] To achieve the above objectives, this disclosure provides a mobile terminal, comprising:

[0006] A housing, the housing including a rear cover having an outwardly projected surface;

[0007] A projection imaging device is installed in the housing, with at least a portion of the projection imaging device located outside the projection surface. The projection imaging device includes a projection module and a lens module. The projection module is used to receive display information and emit light representing the display information toward the lens module. The lens module is used to reflect the light emitted by the projection module onto the projection surface.

[0008] Optionally, the lens module includes a convex lens and a reflector, the convex lens, the reflector, and the projection module are disposed opposite to each other, and the convex lens is located between the reflector and the projection module. The convex lens is used to converge the light emitted by the projection module onto the reflector, so that the reflector can reflect the light onto the projection surface; or,

[0009] The lens module includes a Fresnel lens and a reflector. The Fresnel lens, the reflector, and the projection module are arranged opposite to each other, with the Fresnel lens located between the reflector and the projection module. The Fresnel lens is used to converge the light emitted by the projection module onto the reflector, so that the reflector can reflect the light onto the projection surface.

[0010] Optionally, the reflector is located outside the projection surface, the convex lens and the projection module are located inside the projection surface, and a first light-transmitting portion is formed on the rear cover, the first light-transmitting portion being located between the convex lens and the reflector; or,

[0011] The Fresnel lens and the projection module are located inside the projection surface, and a first light-transmitting part is formed on the back cover, which is located between the Fresnel lens and the reflector.

[0012] Optionally, the housing further includes a camera protective cover, which is mounted on the rear cover. The reflector is mounted inside the camera protective cover, and a second light-transmitting portion is formed on the camera protective cover for light reflected from the reflector to pass through.

[0013] Optionally, the first light-transmitting portion is a first through hole formed on the back cover, and the second light-transmitting portion is a second through hole formed on the camera protective cover.

[0014] Optionally, the convex lens is a biconvex lens.

[0015] Optionally, the reflector is a right-angle prism, wherein the two right-angled faces of the right-angle prism are used to transmit light, and the inclined face of the right-angle prism is used to reflect light.

[0016] Optionally, the back cover includes an outer layer and a light-transmitting layer covering the outside of the outer layer, wherein the side of the outer layer near the light-transmitting layer is the projection surface, and the light reflected by the lens module can pass through the light-transmitting layer to reach the projection surface.

[0017] Optionally, a projection area is provided on the projection surface, the projection area being a frosted projection area, and the lens module is used to reflect the light emitted by the projection module onto the frosted projection area; or,

[0018] The projection area is a screen projection area, and the lens module is used to reflect the light emitted by the projection module onto the screen projection area; or,

[0019] The projection area is a coating projection area, and the lens module is used to reflect the light emitted by the projection module onto the coating projection area.

[0020] Optionally, the mobile terminal further includes a rear camera and a motherboard, the rear camera being mounted on the rear cover, and both the rear camera and the projection module being electrically connected to the motherboard.

[0021] Another aspect of this disclosure provides a display method applied to a mobile terminal as described above, comprising the following steps:

[0022] Get the display information;

[0023] The display information is transmitted to the projection module;

[0024] The projection module emits light representing the display information toward the lens module, causing the lens module to reflect the light onto the projection surface.

[0025] Optionally, obtaining the display information includes:

[0026] Obtain the display information captured by the rear camera on the mobile terminal; or,

[0027] Obtain display information generated or received by a specified application on the mobile terminal.

[0028] Optionally, before obtaining the display information, the method further includes:

[0029] In response to receiving a command to turn on the rear camera, a prompt message is output to remind the user whether to display on the projection surface of the mobile terminal;

[0030] The system detects that the user has made a confirmation based on the prompt message, and displays the confirmation on the projection surface of the mobile terminal.

[0031] Optionally, the displayed information may be image information and / or text information.

[0032] Through the above technical solution, the projection imaging device converts display information into light and projects it onto the projection surface of the back cover, allowing the user to conveniently see the image on the back cover. The lens module allows for changing the direction of light illumination, enabling the projection module's position to be customized according to design needs. It eliminates the need for the projection module's illumination end to directly face the projection surface, broadening its application and suitability for various mobile terminal designs. When taking selfies, the rear camera can be used directly, and the live image is displayed on the projection surface, eliminating the need for a front-facing camera. This maintains the screen's integrity, avoiding punch-holes or notches, achieving a true full-screen display. This mobile terminal uses projection imaging, displaying clear and complete images, avoiding the incomplete display issues of small screens or e-ink screens, and also avoiding the increased thickness of the mobile terminal due to secondary displays, providing a superior user experience.

[0033] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0034] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0035] Figure 1 This is a schematic diagram of the structure of the back cover according to one embodiment of the present disclosure;

[0036] Figure 2 This is a side perspective view of the rear cover according to one embodiment of the present disclosure;

[0037] Figure 3 This is a partial enlarged view of position A in one embodiment of this disclosure;

[0038] Figure 4 This is a flowchart of a display method according to one embodiment of the present disclosure;

[0039] Figure 5 This is a flowchart of a display method according to one embodiment of the present disclosure.

[0040] Explanation of reference numerals in the attached figures

[0041] 1. Back cover, 2. Camera protective cover, 3. Rear camera, 4. Projection area, 5. Exterior layer, 6. Light-transmitting layer, 7. First through hole, 8. Second through hole, 9. Reflector, 10. Convex lens, 11. Projection module, 12. Mid-frame, 13. Screen. Detailed Implementation

[0042] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0043] In this disclosure, unless otherwise stated, directional terms such as "upper," "lower," "left," and "right" are generally used to define the orientation of the accompanying drawings, and "inner" and "outer" refer to the inner and outer parts of the relevant components. Furthermore, terms such as "first" and "second" are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0045] like Figures 1-3As shown, this disclosure provides a mobile terminal, including: a housing and a projection imaging device.

[0046] The housing includes a rear cover 1, which has an outward-facing projection surface. A projection imaging device is mounted on the housing, with at least a portion of the projection imaging device located outside the projection surface. The projection imaging device includes a projection module 11 and a lens module. The projection module 11 receives display information and emits light representing the display information toward the lens module. The lens module reflects the light emitted by the projection module 11 onto the projection surface.

[0047] The back cover 1 is the back side of the housing, and the projection surface refers to the side of the back cover 1 facing away from the housing. The projection module 11 is used to convert display information into light and project it out. The lens module is used to change the transmission direction of the light so that the light can shine on the projection surface, so that the display information received by the projection module 11 can be displayed on the projection surface. Since the projection surface is facing outward, the user can see the image projected on the projection surface.

[0048] In the above technical solution, the projection imaging device converts display information into light and projects it, allowing the image to be displayed on the projection surface of the back cover 1. This makes it very convenient for the user to see the image on the back cover 1. The lens module allows the direction of light illumination to be changed, enabling the position of the projection module 11 to be set according to design needs. The projection module 11 does not need to have its illumination end directly facing the projection surface, making it widely applicable and suitable for various mobile terminal designs. When taking a selfie with the mobile terminal, the rear camera 3 can be used directly to capture the image, and the real-time image can be displayed on the projection surface. This eliminates the need for a front camera on the mobile terminal, maintaining the integrity of the screen and avoiding the need for punch-hole or notch displays, thus achieving a true full-screen display. This mobile terminal uses projection imaging, which clearly and completely displays images, avoiding the incomplete display problems of small screens or e-ink screens. It also avoids the problem of adding thickness to the mobile terminal by setting a secondary display, providing users with a very good user experience.

[0049] Optionally, in one embodiment of this disclosure, the lens module includes a convex lens 10 and a reflector 9. The convex lens 10, the reflector 9, and the projection module 11 are arranged opposite to each other, and the convex lens 10 is located between the reflector 9 and the projection module 11. The convex lens 10 is used to converge the light emitted by the projection module 11 onto the reflector 9 so that the reflector 9 can reflect the light onto the projection surface.

[0050] In this embodiment, the convex lens 10 is used to converge the divergent light generated by the projection module 11 into parallel light, so that all the parallel light illuminates the reflector 9, and the reflector 9 reflects the light onto the projection surface. The convex lens 10 and the reflector can change the direction of light illumination, allowing the position of the projection module 11 to be selected according to design needs, without requiring the illumination end of the projection module 11 to directly face the projection surface. The combination of the convex lens 10 and the reflector 9 facilitates the reflection of all light onto the projection surface, ensuring a good projection display effect. Optionally, the number of convex lenses 10 and reflectors 9 can be selected according to actual design needs. Optionally, the installation position and angle of the reflector 9 can also be selected according to actual design needs, as long as the light is reflected onto the projection surface.

[0051] Optionally, in another embodiment of this disclosure, the lens module includes a Fresnel lens and a reflector 9. The Fresnel lens, the reflector 9, and the projection module 11 are arranged opposite to each other, and the Fresnel lens is located between the reflector 9 and the projection module 11. The Fresnel lens is used to converge the light emitted by the projection module 11 onto the reflector 9 so that the reflector 9 can reflect the light onto the projection surface.

[0052] In this embodiment, a Fresnel lens is used to converge the divergent light generated by the projection module 11 into parallel light, ensuring that all the parallel light illuminates the reflector 9, which then reflects the light onto the projection surface. The Fresnel lens is thinner than a conventional convex lens 10, making it suitable for mobile terminals with limited installation space and strict thickness requirements. Either a convex lens 10 or a Fresnel lens can be used depending on the application. The combination of the Fresnel lens and the reflector 9 ensures that all light is reflected onto the projection surface, guaranteeing a good projection display effect. Optionally, the number of Fresnel lenses and reflectors 9 can be selected according to actual design needs. Optionally, the installation position and angle of the reflector 9 can also be selected according to actual design needs, as long as the light is reflected onto the projection surface.

[0053] Optionally, in one embodiment of this disclosure, the reflector 9 is located outside the projection surface, the convex lens 10 and the projection module 11 are located inside the projection surface, and a first light-transmitting portion is formed on the rear cover 1, which is located between the convex lens 10 and the reflector 9.

[0054] In this embodiment, the reflector 9, located on the outer side of the projection surface, facilitates the reflection of light onto the projection surface, achieving projection display. The convex lens 10 and projection module 11 are located on the inner side of the projection surface, i.e., inside the mobile terminal, allowing for easy installation and fixation of the convex lens 10 and projection module 11. The first transmission section allows light to pass between the convex lens 10 and the reflector 9, enabling the light converged by the convex lens 10 to illuminate the reflector 9. It should be noted that the outer side of the projection surface refers to the side of the back cover 1 facing away from the housing, while the inner side of the projection surface refers to the side of the back cover 1 inside the housing, i.e., inside the mobile terminal. The separate design of the reflector 9, convex lens 10, and projection module 11 allows for easy adaptation to different layout design needs.

[0055] Alternatively, in another embodiment of this disclosure, the Fresnel lens and the projection module 11 are located inside the projection surface, and a first light-transmitting portion is formed on the rear cover 1, which is located between the Fresnel lens and the reflector 9.

[0056] In this embodiment, the reflector 9, located on the outer side of the projection surface, facilitates the reflection of light onto the projection surface, achieving projection display. The Fresnel lens and projection module 11 are located on the inner side of the projection surface, i.e., inside the mobile terminal, allowing for easy installation and fixation of the Fresnel lens and projection module 11. The first transmission section allows light to pass between the Fresnel lens and the reflector 9, enabling the light converged by the Fresnel lens to illuminate the reflector 9. It should be noted that the outer side of the projection surface refers to the side of the back cover 1 facing away from the housing, while the inner side of the projection surface refers to the side of the back cover 1 located inside the housing, i.e., inside the mobile terminal.

[0057] Optionally, in some other embodiments of this disclosure, the lens module and the projection module 11 are integrated into one unit, that is, the lens module is located on the projection module 11, and the light generated by the projection module 11 passes directly through the lens module. Both the lens module and the projection module 11 are located outside the projection surface, meaning that the projection module 11 and the lens module are not inside the mobile terminal, and the image is projected directly onto the projection surface through the projection module 11 and the lens module.

[0058] Optionally, in one embodiment of this disclosure, the housing further includes a camera protective cover 2, which is mounted on the rear cover 1. A reflector 9 is mounted inside the camera protective cover 2, and a second light-transmitting portion is formed on the camera protective cover 2 for allowing light reflected from the reflector 9 to pass through.

[0059] The camera cover 2 protects the rear camera 3 and obscures its edges to maintain aesthetics. The camera cover 2 is installed on the outer side of the rear cover 1. By mounting the reflector 9 on the camera cover 2, the aesthetics of the rear cover 1 are kept consistent with existing mobile terminals, and the reflector 9 does not negatively impact the appearance of the rear cover 1. Alternatively, in some embodiments, the reflector 9 may be installed directly on the rear cover 1 instead of on the camera cover 2, achieving the same projection display effect. The second light-transmitting part on the camera cover 2 allows light to pass through. Light converged by the convex lens 10 or Fresnel lens can shine through the second light-transmitting part onto the reflector 9, and the light reflected by the reflector 9 can then shine through the second light-transmitting part onto the projection surface.

[0060] Optionally, in one embodiment of this disclosure, the first light-transmitting portion is a first through hole 7 formed on the back cover 1, and the second light-transmitting portion is a second through hole 8 formed on the camera protective cover 2.

[0061] In this embodiment, the first through-hole 7 penetrates the rear cover 1, allowing light to be transmitted through it. The second through-hole 8 is located inside the camera protective cover 2. The second through-hole 8 is L-shaped, with its first end connected to the first through-hole 7 and its second end located on the side wall of the camera protective cover 2. Specifically, the reflector 9 is located inside the second through-hole 8. Light rays converged by the convex lens 10 or Fresnel lens are projected onto the reflector 9 through the first through-hole 7 and the first end of the second through-hole 8. The light rays reflected by the reflector 9 are then projected onto the projection surface through the second end of the second through-hole 8.

[0062] Optionally, in some other embodiments of this disclosure, the first light-transmitting part may be made of a transparent material, which is embedded in the back cover 1 to allow light to pass through the first light-transmitting part. The second light-transmitting part is also made of a transparent material, and the reflector 9 is located at one end of the second light-transmitting part to allow light to pass through the second light-transmitting part. Specifically, the transparent material may be transparent glass or plexiglass, etc.

[0063] Optionally, in one embodiment of this disclosure, the convex lens 10 is a biconvex lens. This makes it easier to converge divergent light and parallelize it into parallel light.

[0064] Optionally, in one embodiment of this disclosure, the reflector 9 is a right-angle prism, with the two right-angled faces of the right-angle prism used to transmit light and the inclined face of the right-angle prism used to reflect light.

[0065] In this embodiment, specular reflection is achieved through the inclined surface of the right-angle prism, while the two right-angled surfaces of the prism are only used for light transmission. Right-angle prisms are easy to manufacture and install, and facilitate control of the tilt angle and adjustment of the reflection direction. Specifically, the right-angle prism is installed within the second through hole 8 in the above embodiment.

[0066] Alternatively, in another embodiment of this disclosure, the reflector 9 is a plane mirror. The surface of the plane mirror is used to reflect light, which can directly achieve mirror reflection, and thus also achieve light reflection. Specifically, the plane mirror is installed in the second through hole 8 in the above embodiment.

[0067] Optionally, in one embodiment of this disclosure, the back cover 1 includes an outer layer 5 and a light-transmitting layer 6 covering the outside of the outer layer 5. The side of the outer layer 5 near the light-transmitting layer 6 is a projection surface, and the light reflected by the lens module can pass through the light-transmitting layer 6 to reach the projection surface.

[0068] In this embodiment, the outer layer 5 is the aesthetic layer visible to the user, and its color or surface finish can be designed according to design requirements. The light-transmitting layer 6 protects the outer layer 5. The user can see the outer layer 5 through the light-transmitting layer 6. Simultaneously, the light-transmitting layer 6 also allows light reflected from the lens module to pass through, projecting the light onto the projection surface. In the above embodiment, the second end of the second through-hole 8 on the camera protective cover 2 can be located inside or outside the light-transmitting layer 6, both allowing reflected light to pass through the light-transmitting layer 6 and be projected onto the projection surface. Specifically, the light-transmitting layer 6 can be made of transparent materials such as glass or acrylic glass. Of course, the back cover 1 may only have the outer layer 5, without the light-transmitting layer 6 for protection.

[0069] Optionally, in one embodiment of this disclosure, a projection area 4 is provided on the projection surface. The projection area 4 is a frosted projection area, and the lens module is used to reflect the light emitted by the projection module 11 onto the frosted projection area.

[0070] In this embodiment, when the light emitted by the projection module 11 is reflected onto the frosted projection area, the frosted projection area can diffusely reflect the light, thereby creating a clearer display effect. The frosted projection area facilitates diffuse reflection.

[0071] Optionally, in another embodiment of this disclosure, a projection area 4 is provided on the projection surface, the projection area 4 is a screen projection area, and the lens module is used to reflect the light emitted by the projection module 11 to the screen projection area.

[0072] In this embodiment, when the light emitted by the projection module 11 is reflected onto the projection area of ​​the screen, the projection area can diffusely reflect the light, thereby creating a clearer display effect. The projection area of ​​the screen facilitates diffuse reflection.

[0073] Optionally, in some other embodiments of this disclosure, a projection area 4 is provided on the projection surface, the projection area 4 is a coating projection area, and the lens module is used to reflect the light emitted by the projection module 11 onto the coating projection area.

[0074] In this embodiment, when the light emitted by the projection module 11 is reflected onto the coating projection area, the coating projection area can diffusely reflect the light, thereby creating a clearer display effect. The coating projection area facilitates diffuse reflection.

[0075] Optionally, in one embodiment of this disclosure, the mobile terminal further includes a rear camera 3 and a motherboard. The rear camera 3 is mounted on the rear cover 1, and both the rear camera 3 and the projection module 11 are electrically connected to the motherboard.

[0076] In this embodiment, the rear camera 3 is used to capture images. The rear camera 3 is located at the rear, and the motherboard is used for electronic control. The display information captured by the rear camera 3 can be transmitted to the motherboard, and then transmitted to the projection module 11 for projection. Of course, the housing also includes a mid-frame 12, and the mobile terminal also includes a screen 13, etc. The mid-frame is connected to the back cover, and the screen is connected to the mid-frame.

[0077] like Figure 4 As shown, another aspect of this disclosure provides a display method applied to a mobile terminal as described above, comprising the following steps:

[0078] Step S401: Obtain display information;

[0079] Step S401: Transmit display information to projection module 11;

[0080] Step S401: The projection module 11 emits light representing the display information toward the lens module, so that the lens module reflects the light onto the projection surface.

[0081] Optionally, in one embodiment of this disclosure, obtaining display information includes:

[0082] To obtain the display information captured by the rear camera 3 on the mobile terminal; or...

[0083] Get display information generated or received by a specified application on the mobile terminal.

[0084] In this embodiment, the display information captured by the rear camera 3 can be directly transmitted to the projection module 11 and then displayed on the projection surface. Specifically, it can be used when taking selfies or making video calls with the rear camera 3. Of course, photos captured by the rear camera 3 can also be transmitted to the projection module 11 and then displayed on the projection surface.

[0085] In this embodiment, the display information generated or received by a designated application on the mobile terminal may include received SMS messages, information generated or received by an APP application, or information generated by the mobile terminal system. The APP application can be an application pre-installed on the mobile terminal system or an application installed by the user. Specifically, it may include messages received via WeChat, alarm reminders from the mobile terminal, or scheduled events set on the mobile terminal.

[0086] Optionally, in this embodiment, the APP application can be configured with control commands to control whether the display information generated or received by the application is displayed on the projection surface of the mobile terminal. The control commands allow users to easily configure the settings according to their usage.

[0087] Optionally, in one embodiment of this disclosure, the method further includes, before obtaining the display information:

[0088] In response to receiving a command to turn on the rear camera 3, a prompt message is output to remind the user whether to display on the projection surface of the mobile terminal;

[0089] It was determined that the user's confirmation based on the prompt message was displayed on the projection surface of the mobile terminal.

[0090] In this embodiment, when the user taps to activate the rear camera 3, the mobile terminal outputs a prompt message to remind the user whether they want to display the image or video captured by the rear camera 3 on the projection surface of the mobile terminal. This provides a convenient reminder and allows the user to make a selection. When the user confirms based on the prompt message that the display should be on the projection surface of the mobile terminal, the display information is acquired and the projection light is projected onto the projection surface of the mobile terminal. Specifically, in this embodiment, the prompt message reminding the user whether to display on the projection surface of the mobile terminal can be accompanied by confirmation and cancellation options, or the user can confirm by clicking a button on the mobile terminal.

[0091] Optionally, in one embodiment of this disclosure, the displayed information is image information and / or text information.

[0092] Specifically, in this embodiment, the image information can be pictures captured by the rear camera 3, videos captured by the rear camera 3, pictures received by the APP application, and pictures from system applications. The pictures from system applications can be lock screen images, etc. The text information can be messages generated or received by the system, or messages received or generated by the APP application. It is understood that image information and text information can be displayed separately on the projection surface of the mobile terminal, or simultaneously on the projection surface of the mobile terminal.

[0093] For ease of understanding, such as Figure 5As shown, an example of a display method applied to a mobile terminal as described above includes the following steps:

[0094] S501: In response to receiving the command to turn on the rear camera 3, output a prompt message to remind the user whether to display on the projection surface of the mobile terminal;

[0095] S502: It is determined that the user's confirmation based on the prompt message has been detected and displayed on the projection surface of the mobile terminal;

[0096] S503: Obtain the display information captured by the rear camera 3 on the mobile terminal;

[0097] S504: Transmit the display information to the projection module 11;

[0098] S505: The projection module 11 emits light representing the display information toward the lens module, so that the lens module reflects the light onto the projection surface.

[0099] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0100] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0101] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A mobile terminal, characterized in that, include: The housing includes a rear cover (1) having an outward projection surface, the rear cover (1) being the back side of the housing, and the projection surface being the side of the rear cover (1) facing away from the housing (1); A projection imaging device is installed in the housing, with at least a portion of the projection imaging device located outside the projection surface. The projection imaging device includes a projection module (11) and a lens module. The projection module (11) is used to receive display information and emit light representing the display information toward the lens module. The lens module is used to reflect the light emitted by the projection module (11) onto the projection surface. The lens module includes a convex lens (10) and a reflector (9), wherein the reflector (9) is located outside the projection surface, and the convex lens (10) and the projection module (11) are located inside the projection surface; or, The lens module includes a Fresnel lens and a reflector (9), and the Fresnel lens and the projection module (11) are located inside the projection surface; The housing also includes a camera protective cover (2), which is mounted on the rear cover (1). The reflector (9) is mounted inside the camera protective cover (2). A second light-transmitting part is formed on the camera protective cover (2), which is used to allow light reflected from the reflector (9) to pass through.

2. The mobile terminal according to claim 1, characterized in that, The convex lens (10), the reflector (9), and the projection module (11) are arranged opposite to each other, with the convex lens (10) located between the reflector (9) and the projection module (11). The convex lens (10) is used to converge the light emitted by the projection module (11) onto the reflector (9), so that the reflector (9) can reflect the light onto the projection surface; or, The Fresnel lens, the reflector (9), and the projection module (11) are arranged opposite to each other, and the Fresnel lens is located between the reflector (9) and the projection module (11). The Fresnel lens is used to converge the light emitted by the projection module (11) onto the reflector (9) so that the reflector (9) can reflect the light onto the projection surface.

3. The mobile terminal according to claim 2, characterized in that, A first light-transmitting portion is formed on the rear cover (1), and the first light-transmitting portion is located between the convex lens (10) and the reflector (9); or, A first light-transmitting portion is formed on the back cover (1), and the first light-transmitting portion is located between the Fresnel lens and the reflector (9).

4. The mobile terminal according to claim 3, characterized in that, The first light-transmitting part is a first through hole (7) formed on the back cover (1), and the second light-transmitting part is a second through hole (8) formed on the camera protective cover (2).

5. The mobile terminal according to claim 2, characterized in that, The convex lens (10) is a biconvex lens.

6. The mobile terminal according to claim 2, characterized in that, The reflector (9) is a right-angle prism. The two right-angled surfaces of the right-angle prism are used to transmit light, and the inclined surface of the right-angle prism is used to reflect light.

7. The mobile terminal according to any one of claims 1-6, characterized in that, The back cover (1) includes an outer layer (5) and a light-transmitting layer (6) covering the outside of the outer layer (5). The side of the outer layer (5) close to the light-transmitting layer (6) is the projection surface. The light reflected by the lens module can pass through the light-transmitting layer (6) to reach the projection surface.

8. The mobile terminal according to any one of claims 1-6, characterized in that, A projection area (4) is provided on the projection surface. The projection area (4) is a frosted projection area. The lens module is used to reflect the light emitted by the projection module (11) onto the frosted projection area; or, The projection area (4) is a screen projection area, and the lens module is used to reflect the light emitted by the projection module (11) onto the screen projection area; or, The projection area (4) is a coating projection area, and the lens module is used to reflect the light emitted by the projection module (11) onto the coating projection area.

9. The mobile terminal according to any one of claims 1-6, characterized in that, The mobile terminal also includes a rear camera (3) and a motherboard. The rear camera (3) is mounted on the back cover (1). The rear camera (3) and the projection module (11) are both electrically connected to the motherboard.

10. A display method applied to a mobile terminal as described in any one of claims 1-9, characterized in that, Includes the following steps: Get the display information; The display information is transmitted to the projection module (11). The projection module (11) emits light representing the display information toward the lens module, so that the lens module reflects the light onto the projection surface.

11. The method according to claim 10, characterized in that, The acquisition of display information includes: Obtain the display information captured by the rear camera (3) on the mobile terminal; or, Obtain display information generated or received by a specified application on the mobile terminal.

12. The method according to claim 10, characterized in that, Before acquiring the display information, the method further includes: In response to receiving the instruction to turn on the rear camera (3), a prompt message is output to remind the user whether to display on the projection surface of the mobile terminal; The system detects that the user has made a confirmation based on the prompt message, and displays the confirmation on the projection surface of the mobile terminal.

13. The display method according to claim 10, characterized in that, The displayed information is image information and / or text information.

Images