A smart light mirror that can be used as a display screen

Abstract

The present invention relates to the technical field of intelligent light mirrors, and in particular to an intelligent light mirror that can be used as a display screen, comprising a mirror body and a glass plate arranged on the mirror body, and also comprising a backlight module, a cloth collecting roller, a cloth releasing roller, a reflective cloth, a driving mechanism, a broadcasting module and a guiding mechanism, wherein the mirror body is provided with a liquid crystal module, the cloth collecting roller and the cloth releasing roller are respectively rotatably arranged in the mirror body, the reflective cloth is wound on the cloth collecting roller, one end of the reflective cloth is connected to the cloth releasing roller after the mirror guiding mechanism, the driving mechanism is used to drive the cloth collecting roller and the cloth releasing roller to rotate, the guiding mechanism is used to guide the reflective cloth to move between the backlight module and the mirror body, and the broadcasting module is installed in the mirror body. The present invention controls the way of collecting and releasing the reflective cloth so that the backlight module can directly illuminate the mirror body or be blocked, so as to achieve the switching between the two functions of the ordinary mirror and the display screen of the present invention, thereby improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent light mirrors, and in particular to an intelligent light mirror that can be used as a display screen. Background Art

[0002] At present, the technology of smart light mirrors is developing very rapidly. On the basis of maintaining the functions of the original light mirrors, it has also added functions such as smart dimming and music playback, so that users can also have entertainment through smart light mirrors while washing in the bathroom, which is conducive to improving the quality of life.

[0003] In addition, some smart light mirrors also have a display screen for displaying some text or images. However, this type of smart light mirror usually has an additional area on the glass plate used as a display screen, which makes the overall appearance inconsistent. At the same time, since there is only one area used as a display screen, the area of ​​the display screen is very small, which reduces the user experience. Summary of the invention

[0004] In view of the problems of the prior art, the present invention provides an intelligent light mirror that can be used as a display screen, which can switch back and forth between the two functions of a mirror and a display screen, has a coordinated overall appearance, and allows the display screen to be large enough for convenient screen projection.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention provides an intelligent light mirror that can be used as a display screen, comprising a mirror body and a glass plate arranged on the mirror body, and also comprising a backlight module, a cloth collecting roller, a cloth releasing roller, a reflective cloth, a driving mechanism, a broadcasting module and a guiding mechanism. The mirror body is provided with a liquid crystal module, the cloth collecting roller and the cloth releasing roller are respectively rotatably arranged in the mirror body, the reflective cloth is wound on the cloth collecting roller, one end of the reflective cloth is connected to the cloth releasing roller behind the guiding mechanism, the driving mechanism is used to drive the cloth collecting roller and the cloth releasing roller to rotate, the guiding mechanism is used to guide the reflective cloth to move between the backlight module and the mirror body, and the broadcasting module is installed in the mirror body;

[0007] The mirror body is also provided with a main control unit, which is connected to the backlight module, the driving mechanism, and the nasal sound module by signals; the main control unit is used to receive external signals and control the driving mechanism and the backlight module to execute relevant instructions according to the external signals.

[0008] Furthermore, the main control unit includes a main control module, a signal transceiver module and a networking module, both of which are connected to the main control module by signal.

[0009] The signal transceiver module is used to receive external controller mode instructions;

[0010] The main control module is connected to the external Internet via the networking module;

[0011] The main control module controls the backlight module action according to the user's current state;

[0012] Among them, the mode instructions include display screen mode and mirror mode. When the signal is display screen mode, the content of the external controller is transmitted to the main control module through the networking module, and the main control module projects the screen through the backlight module.

[0013] Furthermore, the main control module is connected to a user identification module for obtaining the user's body contour, and the working method of the main control module includes:

[0014] A. Receive a mode signal sent by an external controller through a signal transceiver module. If the mode signal is a display mode, execute step B; if the mode signal is a mirror mode, execute step C;

[0015] B. The reflective cloth is rolled up onto the cloth-collecting roller through the driving mechanism, and then the backlight module is turned on;

[0016] C. Control the backlight module to switch to the off state, and at the same time drive the reflective cloth cover to move between the glass plate and the backlight module through the driving mechanism and completely cover the backlight module;

[0017] Among them, when the main control module projects the screen through the backlight module, the main control module determines the user's current state according to the user's body contour information, and then controls the action of the backlight module in combination with the user's current state.

[0018] Furthermore, the main control module determines the current state of the user according to the body contour information of the user, specifically including:

[0019] S1. The main control module receives and determines the type of information cast on the screen. If the information cast on the screen is a video, step S2 is executed. Otherwise, the information cast on the screen is continuously played.

[0020] S2. The main control module obtains from the user identification module whether there is a user in front of the scope, and if so, executes step S3, otherwise, does not execute the corresponding action;

[0021] S3. The main control module obtains the user's body contour information through the user identification module, captures the user's head movement to determine whether the user is looking at the mirror body, and if so, continues to play the video; otherwise, continues to play the video and starts timing;

[0022] When the timing time exceeds the preset value t, the video playback stops until the user looks at the mirror again; the value range of t is 2-5s.

[0023] Furthermore, in step A, the mode signal further includes a half-screen mode; when the mode signal is the half-screen mode, step D is executed;

[0024] D. The cloth collecting roller and the cloth releasing roller are driven to rotate by the driving mechanism so that the reflective cloth covers half of the backlight module, and at the same time, the uncovered part of the backlight module is driven to start.

[0025] Furthermore, in step S2, when the user identification module identifies that there is a user in front of the scope, the method further includes:

[0026] S21. Calculate the time difference between the last time the user identification module recognized that there was a user in front of the mirror and the time it recognized that there was a user in front of the mirror, and record it as t'; when t' is less than the preset value t0, execute step S22, otherwise re-execute step S3;

[0027] S22. The main control module analyzes the user's body contour information, and determines whether the user in front of the mirror body last time and the user in front of the mirror body this time are the same user according to the user's body contour information. If they are the same user, step S23 is executed, otherwise step S3 is executed;

[0028] S23. Calculate the total time the user spends in front of the mirror. When the total time exceeds a preset value t", the main control module sends a warning message through the backlight module.

[0029] Furthermore, a reflective coating is provided on a side of the reflective cloth facing the glass plate, and a protective coating is provided on a side of the reflective coating away from the reflective cloth;

[0030] The guide mechanism comprises two guide members, and the two guide members have guide grooves on one side close to each other, and the two sides of the reflective cloth are respectively slidably arranged in the two guide grooves.

[0031] Furthermore, the driving mechanism includes a driving motor, an encoder, a reduction gear box, a first transmission structure and a second transmission structure. The driving motor is connected to the first transmission structure and the second transmission structure through the reduction gear box. The first transmission structure is connected to the cloth-releasing roller, and the second transmission structure is connected to the cloth-collecting roller. The encoder is installed on the cloth-collecting roller or the cloth-releasing roller, and the encoder and the driving motor are respectively connected to the main control module signal.

[0032] Furthermore, light-transmitting plates are respectively arranged on both sides of the mirror body, and a shutter mechanism is rotatably arranged on the outer side of the light-transmitting plate, and the shutter mechanism is electrically connected to the main control unit;

[0033] The shutter mechanism works as follows:

[0034] The main control unit obtains the local time. If the local time is between 0 and 6 o'clock and the brightness of the environment in which the mirror is located is lower than the preset value, the main control unit controls the shutter mechanism to open and emits warm light through the backlight module for illumination.

[0035] Furthermore, the backlight module emits warm light for illumination, specifically including:

[0036] The main control unit stores a lighting matching table;

[0037] The main control unit obtains the brightness of the environment where the mirror is located, recorded as L;

[0038] The main control unit searches for a matching blind rotation angle θ in the lighting matching table according to the brightness L;

[0039] The main control unit controls the shutter mechanism to rotate at an angle θ;

[0040] The main control unit selects a specific area of ​​the backlight module close to the shutter mechanism according to the shutter rotation angle θ, and then controls the area to be illuminated with the same brightness;

[0041] The width of the specific area is positively correlated with the rotation angle θ of the blinds.

[0042] Beneficial effects of the present invention: The present invention controls the retraction and extension of the reflective cloth so that the backlight module can directly illuminate the mirror body or be blocked, so that the present invention can switch between the two functions of an ordinary mirror and a display screen, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a cross-sectional view of the present invention.

[0044] Figure 2 It is the electric control principle diagram of the present invention.

[0045] Figure 3 It is a schematic diagram of the cooperation between the light-transmitting plate and the shutter mechanism of the present invention.

[0046] Figure numerals: 1—mirror body, 2—glass plate, 3—backlight module, 4—cloth collecting roller, 5—cloth releasing roller, 6—reflective cloth, 7—driving mechanism, 8—broadcasting module, 9—guiding mechanism, 10—liquid crystal module, 11—main control unit, 12—light-transmitting plate, 13—shutter mechanism, 14—thin rope, 71—reduction box, 72—encoder, 73—first transmission structure, 74—second transmission structure. DETAILED DESCRIPTION

[0047] In order to facilitate the understanding of the technical users in the field, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not limitations of the present invention. The present invention is described in detail below in conjunction with the drawings.

[0048] The present invention provides an intelligent light mirror that can be used as a display screen, comprising a mirror body 1 and a glass plate 2 arranged on the mirror body 1, and also comprising a backlight module 3, a cloth collecting roller 4, a cloth releasing roller 5, a reflective cloth 6, a driving mechanism 7, a broadcasting module 8 and a guiding mechanism 9. The mirror body 1 is provided with a liquid crystal module 10, the cloth collecting roller 4 and the cloth releasing roller 5 are respectively rotatably arranged in the mirror body 1, the reflective cloth 6 is wound around the cloth collecting roller 4, one end of the reflective cloth 6 is connected to the cloth releasing roller 5 behind the guiding mechanism 9, the driving mechanism 7 is used to drive the cloth collecting roller 4 and the cloth releasing roller 5 to rotate, the guiding mechanism 9 is used to guide the reflective cloth 6 to move between the backlight module 3 and the mirror body 1, and the broadcasting module 8 is installed in the mirror body 1;

[0049] The mirror body 1 is also provided with a main control unit 11, which is connected to the backlight module 3, the driving mechanism 7, and the nasal sound module signal; the main control unit 11 is used to receive external signals and control the driving mechanism 7 and the backlight module 3 to execute relevant instructions according to the external signals.

[0050] Specifically, the glass plate 2 of the present invention is transparent glass, and the liquid crystal module 10 provided thereon is used to cooperate with the backlight module 3 to realize the function of a display screen; and the reflective cloth 6 is provided with two thin ropes 14 for winding around the cloth-releasing roller 5. In the normal state of the present invention, the driving mechanism 7 drives the cloth-collecting roller 4 and the cloth-releasing roller 5 to rotate so that the reflective cloth 6 covers the backlight module 3, and the glass plate 2 and the reflective cloth 6 cooperate to form a common mirror for use; and when it is needed to be used as a display screen, the driving mechanism 7 controls the cloth-collecting roller 4 and the cloth-releasing roller 5 to rotate, so that the reflective cloth 6 is wound around the cloth-collecting roller 4, so that the backlight module 3 can shine on the liquid crystal module 10 of the glass plate 2, and cooperate with the liquid crystal module 10 and the glass plate 2 to be used as a display screen.

[0051] Compared with ordinary light mirrors with display screens, the present invention achieves the effect of allowing the entire glass plate 2 to be switched into a display screen, allowing users to view images such as videos and pictures through a large area of ​​the glass plate 2, which is beneficial to improving user experience; in addition, when used as a mirror, the reflective cloth 6 is lowered to ensure the reflective effect of the glass plate 2, so as to ensure that the user can clearly view and organize his or her own image through the glass plate 2.

[0052] In this embodiment, the main control unit 11 includes a main control module, a signal transceiver module and a networking module, all of which are signal-connected to the main control module.

[0053] The signal transceiver module is used to receive external controller mode instructions;

[0054] The main control module is connected to the external Internet via the networking module;

[0055] The main control module controls the action of the backlight module 3 according to the current state of the user;

[0056] Among them, the mode instructions include display screen mode and mirror mode. When the signal is display screen mode, the content of the external controller is transmitted to the main control module through the networking module, and the main control module projects the screen through the backlight module 3.

[0057] The mode switching and screen projection actions of the present invention are realized through different data transmission methods, and the controller described in the present invention is preferably a smart terminal such as a mobile phone, and preferably a corresponding APP on the smart terminal. After the present invention is installed and turned on, the user can connect to the present invention via Bluetooth through the APP, and then control the present invention to connect to the WIFI network in the area. When it is necessary to switch modes, for example, to switch the present invention from the mirror mode to the display mode, the user issues a switching instruction through the APP, and the instruction is sent to the signal transceiver mode of the present invention via Bluetooth. Then the main control module controls the drive mechanism 7 to move to retract the reflective cloth 6 according to the instruction, and then controls the backlight module 3 and the liquid crystal module 10 to start; when the backlight module 3 and the liquid crystal module 10 are started, the signal transceiver mode sends the instruction of successful switching to the APP.

[0058] After the mode switching is successful, the user can directly select the screen projection command in the APP. If the smart terminal and the present invention are connected to a WIFI at this time, the screen projection command can be successfully executed, and the present invention can synchronously display the content displayed on the smart terminal, achieving the screen projection effect.

[0059] Specifically, when the content currently displayed on the smart terminal is in vertical screen, the main control module will enlarge the content in proportion to the center, and the area not used for vertical screen projection will be blackened by the liquid crystal module 10; when the content displayed on the smart terminal is in horizontal screen, the main control module will directly project the horizontal screen content so that all areas of the backlight module 3 are involved in the projection, ensuring the viewing effect.

[0060] In this embodiment, the main control module is connected to a user identification module for obtaining the user's body contour, and the working method of the main control module includes:

[0061] A. Receive a mode signal sent by an external controller through a signal transceiver module. If the mode signal is a display mode, execute step B; if the mode signal is a mirror mode, execute step C;

[0062] B. The reflective cloth 6 is driven by the driving mechanism 7 to be rolled up onto the cloth-collecting roller 4, and then the backlight module 3 is turned on;

[0063] C. Control the backlight module 3 to switch to the off state, and at the same time drive the reflective cloth 6 to move between the glass plate 2 and the backlight module 3 through the driving mechanism 7 and completely cover the backlight module 3;

[0064] When the main control module projects the screen through the backlight module 3, the main control module determines the current state of the user according to the body contour information of the user, and then controls the action of the backlight module 3 in combination with the current state of the user.

[0065] The user identification module is preferably an infrared identification module, that is, when the display screen mode is adopted, the present invention determines whether to display the projection content according to whether the user is in front of the present invention: if the user is not there, it proves that the user may have mistakenly started the projection mode. At this time, the present invention does not perform screen projection processing, and only continues to execute the instruction if the user appears within 10 seconds after receiving the projection instruction; if it exceeds 10 seconds, the user needs to arrive in front of the present invention and resend the projection instruction, and the present invention executes the instruction to improve the degree of intelligence and avoid accidental startup.

[0066] When the user leaves the front of the present invention for more than 5 minutes, the present invention automatically cancels the screen projection command but still maintains the display screen mode; when 25 minutes pass and there is still no user in front of the present invention, the present invention automatically switches to the mirror mode for normal use by the user.

[0067] Preferably, the present invention also has an energy storage capacitor, which is used to allow the present invention to switch from the display mode to the mirror mode when the power is suddenly cut off, so that the present invention can retain the basic mirror function in the case of a power outage. The energy storage capacitor is only used to allow the main control module to switch the present invention to the mirror mode, and does not provide power for other actions.

[0068] Specifically, the main control module determines the current state of the user according to the user's body contour information, specifically including:

[0069] S1. The main control module receives and determines the type of information cast on the screen. If the information cast on the screen is a video, step S2 is executed. Otherwise, the information cast on the screen is continuously played.

[0070] S2. The main control module obtains from the user identification module whether there is a user in front of the mirror body 1, and if so, executes step S3, otherwise, does not execute the corresponding action;

[0071] S3. The main control module obtains the user's body contour information through the user identification module, captures the user's head movement to determine whether the user is looking at the mirror body 1, if so, continue to play the video; otherwise, continue to play the video and start timing;

[0072] When the timing time exceeds the preset value t, the video playback is stopped until the user looks at the mirror body 1 again; the value range of t is 2-5s.

[0073] The present invention is applied to a smart light mirror, specifically to a bathroom mirror. Since the bathroom mirror is set in the bathroom, and the present invention is used in the bathroom for bathing or washing, the user will inevitably look away from the present invention for reasons such as washing hair, spitting water, taking shower gel / shampoo, etc. The present invention will determine whether to stop playing the video according to the duration of the temporary absence, so as to ensure that the user will not miss too much content in the video, further improving the user experience.

[0074] The main control module of the present invention can determine whether the content of the screen projection is video, audio or other types of content based on the content of the screen projection or the APP selected by the smart terminal. If it is a video, the above steps S1-S3 are executed; otherwise, S1-S3 are not executed and the content is continuously played to ensure that there is no unwarranted pause when the user is listening to music.

[0075] Specifically, in step A, the mode signal also includes a half-screen mode; when the mode signal is the half-screen mode, step D is executed;

[0076] D. The cloth collecting roller 4 and the cloth releasing roller 5 are driven to rotate by the driving mechanism 7 so that the reflective cloth 6 covers half of the backlight module 3, and at the same time, the uncovered part of the backlight module 3 is driven to start.

[0077] In actual use, in order to provide a better experience, in the half-screen mode, the upper half of the mirror screen is usually in display mode, while the lower half of the screen is in mirror mode, so that the user only needs to lean over when using the mirror without standing on tiptoe. In addition, in the half-screen mode, the projected image will be scaled up and projected, and the excess position on the mirror surface will be blackened by the liquid crystal module 10 to ensure the coordination of the picture.

[0078] Specifically, in step S2, when the user identification module identifies that there is a user in front of the scope 1, the process further includes:

[0079] S21. Calculate the time difference between the last time the user identification module identified a user in front of the mirror body 1 and the time it identified a user in front of the mirror body 1, and record it as t'; when t' is less than the preset value t0, execute step S22, otherwise re-execute step S3;

[0080] S22. The main control module analyzes the user's body contour information, and determines whether the user in front of the mirror body 1 last time and the user in front of the mirror body 1 this time are the same user according to the user's body contour information. If they are the same user, execute step S23, otherwise execute step S3;

[0081] S23. Calculate the total time the user spends in front of the mirror body 1. When the total time exceeds the preset value t", the main control module projects a warning message through the backlight module 3.

[0082] t0 is preferably 5 minutes, t" is preferably half an hour, and the setting of steps S21-S23 is to prevent the user in the bathroom from staying too long: if the user uses the present invention while taking a bath, if the user still does not end the bath after half an hour of bathing, the main control module projects text on the screen through the backlight module 3 to remind the user to avoid safety problems caused by taking a bath for too long.

[0083] Most bathroom mirrors are set on the washstand, which may be in the same space as the shower room. That is, the user temporarily leaves the front of the present invention due to bending over, dressing, etc., and then returns to the front of the present invention to view the video. Therefore, the present invention sets a time difference t', which is mainly used to determine whether the previous user and the next user are the same person. If they are the same person, it is synchronously counted into the total time to ensure that the same user will not stay in the bathroom for too long and affect the normal use of the bathroom. If it is determined that the previous user and the next user are not the same person, the screen projection of the previous smart terminal is directly cut off to avoid privacy leakage.

[0084] In this embodiment, a reflective coating is provided on the side of the reflective cloth 6 facing the glass plate 2, and a protective coating is provided on the side of the reflective coating away from the reflective cloth 6;

[0085] The guide mechanism 9 includes two guide members, and the two guide members have guide grooves on the sides close to each other. The two sides of the reflective cloth 6 are slidably disposed in the two guide grooves respectively.

[0086] Specifically, the reflective coating is a conventional material, such as a silver coating; and a transparent protective coating is also provided on the surface of the reflective coating, which is scratch-resistant and protects the reflective coating from being worn. The reflective cloth 6 reflects the light passing through the glass plate 2, ensuring that the image reflected by the present invention in the mirror mode is clear.

[0087] The guide member is used to limit and guide the direction of movement of the reflective cloth 6 to ensure that the reflective cloth 6 is always in an open state, thereby ensuring the reflective effect. Preferably, both sides of the reflective cloth 6 can be provided with sliding members, which are used to slide in the guide groove of the guide member.

[0088] In this embodiment, the driving mechanism 7 includes a driving motor, an encoder 72, a reduction gearbox 71, a first transmission structure 73 and a second transmission structure 74. The driving motor is driven by the reduction gearbox 71 to connect the first transmission structure 73 and the second transmission structure 74. The first transmission structure 73 is connected to the cloth-releasing roller 5, and the second transmission structure 74 is connected to the cloth-collecting roller 4. The encoder 72 is installed on the cloth-collecting roller 4 or the cloth-releasing roller 5. The encoder 72 and the driving motor are respectively connected to the main control module signal.

[0089] The first transmission structure 73 and the second transmission structure 74 are preferably gear chain transmission structures, which achieve the effect of allowing one driving motor to simultaneously control the rotation of the cloth placing roller 5 and the cloth collecting roller 4, making the structure of the present invention more compact, which is conducive to reducing the volume and facilitating installation.

[0090] In this embodiment, light-transmitting plates 12 are respectively provided on both sides of the mirror body 1, and a shutter mechanism 13 is rotatably provided on the outer side of the light-transmitting plate 12, and the shutter mechanism 13 is electrically connected to the main control unit 11;

[0091] The shutter mechanism 13 works as follows:

[0092] The main control unit 11 obtains the local time. If the local time is between 0 and 6 o'clock and the brightness of the environment where the mirror body 1 is located is lower than the preset value, the main control unit 11 controls the shutter mechanism 13 to open and emits warm light through the backlight module 3 for illumination.

[0093] That is, the backlight module 3 is used as a night light in addition to the display mode. In the night light mode, the shutter mechanism 13 is opened to allow light to pass through the light-transmitting plate 12 to the outside world. The light-transmitting plate 12 preferably has a frosted structure to soften the light, thereby ensuring illumination and avoiding discomfort to the user's eyes.

[0094] The inner surface of the shutter mechanism 13 also has a reflective coating, so that when the shutter mechanism 13 is in a closed state, the light of the backlight module 3 can be more concentrated, thereby improving the light utilization rate.

[0095] Specifically, the implementation scheme of the shutter mechanism 13 is: after a motor is connected to a screw rod, and the shutter blades are respectively connected to gears, the gears are meshed with each other and the screw rod is meshed with one of the gears, so that one motor can drive multiple shutter blades to rotate.

[0096] In this embodiment, the backlight module 3 emits warm light for illumination, specifically including:

[0097] The main control unit 11 stores a lighting matching table;

[0098] The main control unit 11 obtains the brightness of the environment where the mirror body 1 is located, which is recorded as L;

[0099] The main control unit 11 searches for a matching blind rotation angle θ in the lighting matching table according to the brightness L;

[0100] The main control unit 11 controls the shutter mechanism 13 to rotate at an angle θ;

[0101] The main control unit 11 selects a specific area of ​​the backlight module 3 close to the shutter mechanism 13 according to the shutter rotation angle θ, and then controls the area to be illuminated with the same brightness;

[0102] The width of the specific area is positively correlated with the rotation angle θ of the blinds.

[0103] That is, the brightness of the surrounding environment is related to the rotation angle θ of the shutter mechanism 13, and the rotation angle θ of the shutter mechanism 13 is related to the illumination brightness of the backlight module 3, so that the illumination brightness of the present invention as a night light meets the requirements of the surrounding environment.

[0104] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical user familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. An intelligent light mirror that can be used as a display screen, comprising a mirror body and a glass plate arranged on the mirror body, characterized in that: It also includes a backlight module, a cloth collecting roller, a cloth releasing roller, a reflective cloth, a driving mechanism, a broadcasting module and a guiding mechanism. The mirror body is provided with a liquid crystal module. The cloth collecting roller and the cloth releasing roller are respectively rotatably arranged in the mirror body. The reflective cloth is wound on the cloth collecting roller. One end of the reflective cloth is connected to the cloth releasing roller after passing through the guiding mechanism. The driving mechanism is used to drive the cloth collecting roller and the cloth releasing roller to rotate. The guiding mechanism is used to guide the reflective cloth to move between the backlight module and the mirror body. The broadcasting module is installed in the mirror body. The mirror body is also provided with a main control unit, which is connected to the backlight module, the driving mechanism, and the broadcasting module by signal; the main control unit is used to receive external signals and control the driving mechanism and the backlight module to execute relevant instructions according to the external signals; The main control unit includes a main control module, a signal transceiver module and a networking module, both of which are connected to the main control module by signal. The signal transceiver module is used to receive external controller mode instructions; The main control module is connected to the external Internet via the networking module; The main control module controls the backlight module action according to the user's current state; Among them, the mode instructions include display mode and mirror mode. When the signal is display mode, the content of the external controller is transmitted to the main control module through the networking module, and the main control module projects the screen through the backlight module; The main control module is connected to a user identification module for obtaining the user's body contour. The working method of the main control module includes: A. Receive a mode signal sent by an external controller through a signal transceiver module. If the mode signal is a display mode, execute step B. If the mode signal is a mirror mode, execute step C. B. The reflective cloth is rolled up onto the cloth-collecting roller through the driving mechanism, and then the backlight module is turned on; C. Control the backlight module to switch to the off state, and at the same time drive the reflective cloth cover to move between the glass plate and the backlight module through the driving mechanism and completely cover the backlight module; Among them, when the main control module projects the screen through the backlight module, the main control module determines the user's current state according to the user's body contour information, and then controls the action of the backlight module in combination with the user's current state.

2. The smart light mirror that can be used as a display screen according to claim 1, characterized in that: The main control module determines the current state of the user according to the user's body contour information, specifically including: S1. The main control module receives and determines the type of information cast on the screen. If the information cast on the screen is a video, step S2 is executed. Otherwise, the information cast on the screen is continuously played. S2. The main control module obtains from the user identification module whether there is a user in front of the scope, and if so, executes step S3, otherwise, does not execute the corresponding action; S3. The main control module obtains the user's body contour information through the user identification module, captures the user's head movement to determine whether the user is looking at the mirror body, and if so, continues to play the video; otherwise, continues to play the video and starts timing; When the timing time exceeds the preset value t, the video playback stops until the user looks at the mirror again; the value range of t is 2-5s.

3. The smart light mirror that can be used as a display screen according to claim 1, characterized in that: In step A, the mode signal also includes a half-screen mode; when the mode signal is the half-screen mode, step D is executed; D. The cloth collecting roller and the cloth releasing roller are driven to rotate by the driving mechanism so that the reflective cloth covers half of the backlight module, and at the same time, the uncovered part of the backlight module is driven to start.

4. The smart light mirror that can be used as a display screen according to claim 1, characterized in that: In step S2, when the user identification module identifies that there is a user in front of the scope, the process further includes: S21. Calculate the time difference between the last time the user identification module recognized that there was a user in front of the mirror and the time it recognized that there was a user in front of the mirror, and record it as t'; when t' is less than the preset value t0, execute step S22, otherwise re-execute step S3; S22. The main control module analyzes the user's body contour information, and determines whether the user in front of the mirror body last time and the user in front of the mirror body this time are the same user according to the user's body contour information. If they are the same user, step S23 is executed, otherwise step S3 is executed; S23. Calculate the total time the user spends in front of the mirror. When the total time exceeds a preset value t", the main control module sends a warning message through the backlight module.

5. The smart light mirror that can be used as a display screen according to claim 1, characterized in that: The reflective cloth is provided with a reflective coating on one side facing the glass plate, and a protective coating is provided on the side of the reflective coating away from the reflective cloth; The guide mechanism comprises two guide members, and the two guide members have guide grooves on one side close to each other, and the two sides of the reflective cloth are respectively slidably arranged in the two guide grooves.

6. The smart light mirror that can be used as a display screen according to claim 1, characterized in that: The driving mechanism includes a driving motor, an encoder, a reduction box, a first transmission structure and a second transmission structure. The driving motor is connected to the first transmission structure and the second transmission structure through the reduction box. The first transmission structure is connected to the cloth-releasing roller, and the second transmission structure is connected to the cloth-collecting roller. The encoder is installed on the cloth-collecting roller or the cloth-releasing roller, and the encoder and the driving motor are respectively connected to the main control module signal.

7. The smart light mirror that can be used as a display screen according to claim 1, characterized in that: The two sides of the mirror body are respectively provided with light-transmitting plates, and the outer side of the light-transmitting plates is rotatably provided with a shutter mechanism, and the shutter mechanism is electrically connected to the main control unit; The shutter mechanism works as follows: The main control unit obtains the local time. If the local time is between 0 and 6 o'clock and the brightness of the environment in which the mirror is located is lower than the preset value, the main control unit controls the shutter mechanism to open and emits warm light through the backlight module for illumination.

8. The intelligent light mirror that can be used as a display screen according to claim 7 is characterized in that: The backlight module emits warm light for illumination, specifically comprising: The main control unit stores a lighting matching table; The main control unit obtains the brightness of the environment where the mirror is located, recorded as L; The main control unit searches for a matching blind rotation angle θ in the lighting matching table according to the brightness L; The main control unit controls the shutter mechanism to rotate at an angle θ; The main control unit selects a specific area of ​​the backlight module close to the shutter mechanism according to the shutter rotation angle θ, and then controls the area to be illuminated with the same brightness; The width of the specific area is positively correlated with the rotation angle θ of the blinds.

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