Anti-peeping device and anti-peeping display device

Abstract

The present disclosure provides an anti-peeping device and an anti-peeping display device, which relate to the display technical field. The anti-peeping device includes an anti-peeping assembly (10), a frame (13) surrounding the anti-peeping assembly (10), and a driving module (20). The anti-peeping assembly (10) includes two first substrates (11) and a louver layer (12) interposed between the two first substrates (11). The louver layer (12) includes a light-transmitting portion (121) and a light-blocking portion (122) adjacent to the light-transmitting portion (121). The driving module (20) is used to drive at least one of the first substrates (11) to move relative to the louver layer (12) along the thickness direction of the first substrates (11) so that the louver layer (12) is compressed or recovers from deformation in order to adjust the dimension of the light-transmitting portion (121) in the thickness direction. This anti-peeping device solves the problem that the viewing angle of conventional anti-peeping devices is fixed and cannot be adjusted.

Description

[Technical Field]

[0001] This disclosure claims priority to a Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on November 30, 2022, bearing application number 202211515354.0 and entitled "Anti-peeping device and anti-peeping display device," the entire contents of which are incorporated herein by reference. The present disclosure relates to the field of display technology, and more particularly to an anti-peeping device and an anti-peeping display device. [Background technology]

[0002] Display technology has become the mainstream technology in the market and can meet people's needs in multiple aspects of display technology, such as pixel resolution, response time, screen size, etc. However, in some special display environments, there is a need to ensure that the screen is only visible to the user and not to others, and to provide the screen with an anti-peeping display mode.

[0003] In related technologies, the louver layers of anti-peeping devices applied to display products all adopt a louver structure. However, with conventional anti-peeping devices, if the viewing angle needs to be changed, the louver structure of a new louver layer needs to be redesigned and manufactured, which makes the modification process complicated and the cost relatively high. Summary of the Invention [Problem to be solved by the invention]

[0004] The embodiments of the present disclosure provide an anti-peeping device and an anti-peeping display device to solve the problem that the viewing angle of the anti-peeping device in the related art is fixed and cannot be adjusted, but are not limited thereto. [Means for solving the problem]

[0005] According to a first aspect, an embodiment of the present disclosure provides an anti-peeping device for use in a display, the anti-peeping device including an anti-peeping assembly, a frame arranged around the anti-peeping assembly, and a drive module, the anti-peeping assembly including two first substrates and a louver layer interposed between the two first substrates, the louver layer including a light-transmitting portion and a light-shielding portion arranged adjacent to the light-transmitting portion, and the drive module is used to drive at least one of the first substrates to move relative to the louver layer along the thickness direction of the first substrates so that the louver layer is compressed or the deformation recovers, in order to adjust the dimension of the light-transmitting portion in the thickness direction.

[0006] In some embodiments, the driving module includes a first magnetic assembly disposed between the two first substrates and used to apply a magnetic force to the two first substrates to bring the two first substrates closer to each other so that the louver layer is compressed, and a second magnetic assembly disposed between the two first substrates and used to apply a magnetic force to the two first substrates to move the two first substrates away from each other so that the deformation of the louver layer is restored.

[0007] In some embodiments, the first magnetic assembly includes two permanent magnets with different magnetic properties, and the two permanent magnets are provided on adjacent side surfaces of the two first substrates, respectively.

[0008] In some embodiments, the second magnetic assembly includes two electromagnets having the same magnetic properties and a drive circuit electrically connected to the two electromagnets, the two electromagnets being provided on adjacent sides of the two first substrates so as to face each other, and the drive circuit being used to control the magnitude of input currents to the coils of the two electromagnets.

[0009] In some embodiments, each of the electromagnets is fitted into a corresponding one of the permanent magnets.

[0010] In some embodiments, the number of first magnetic assemblies is at least two.

[0011] In some embodiments, the number of the second magnetic assemblies is the same as the number of the first magnetic assemblies.

[0012] In some embodiments, the first substrate includes a display area and a peripheral area located around the display area, and the driving module is disposed between the two first substrates and located within the peripheral area.

[0013] In some embodiments, the number of the light-shielding portions is plural, the light-shielding portions are spaced apart along a direction perpendicular to the thickness direction, and the gap between two adjacent light-shielding portions is the light-transmitting portion.

[0014] In some embodiments, the light-shielding portion has a strip-like structure, and a plurality of the light-shielding portions are arranged along a direction perpendicular to the longitudinal direction of the light-shielding portion.

[0015] In some embodiments, the light blocking portion has an annular structure, and a plurality of the light blocking portions are arranged along a radial direction of the light blocking portion.

[0016] In some embodiments, the louver layer has a lattice structure and includes a plurality of intersecting shielding strips and lattice holes surrounded by the shielding strips, the shielding strips being the light-shielding portions and the lattice holes being the light-transmitting portions.

[0017] In some embodiments, the frame is an adhesive frame, and the inner walls of the frame are fixed to the two first substrates respectively.

[0018] In some embodiments, two surfaces of the frame along the thickness direction of the first substrate are flush with surfaces of the adjacent first substrates that are spaced apart from the louver layer.

[0019] The technical effect of the anti-peeping device according to the embodiment of the present disclosure, compared with the prior art, is that the present disclosure uses a driving module to drive the first substrate relative to the louver layer along the thickness direction of the first substrate so that the louver layer is compressed or recovers its deformation to adjust the dimension of the light-transmitting portion in the thickness direction. When light passes through louver layers of different dimensions, the viewing angle of the light passing through each light-transmitting portion can be adjusted. In this way, the anti-peeping device can customize the viewing angle according to user needs without changing the structure of the anti-peeping device, thereby meeting the needs of different users. The anti-peeping device can be applied to different display panels, and has a wide range of market applications.

[0020] According to a second aspect, an embodiment of the present disclosure further provides an anti-peeping display device including a display panel and the anti-peeping device described in the first embodiment above, wherein the anti-peeping device is provided on the light output side of the display panel.

[0021] In some embodiments, the display panel includes a stacked color film substrate, a liquid crystal layer, and an array substrate, and the color film substrate includes a second substrate, which is integrally formed with one of the two first substrates.

[0022] The technical effect of the anti-peeping display device according to the embodiment of the present disclosure is to employ the anti-peeping device described above. The present disclosure uses a driving module to drive the first substrate relative to the louver layer along the thickness direction of the first substrate, so that the louver layer is compressed or recovers its deformation to adjust the dimension of the translucent portion in the thickness direction. When light passes through louver layers of different dimensions, the viewing angle of the light passing through each translucent portion can be adjusted. In this way, the anti-peeping device can customize the viewing angle according to user needs without changing the structure of the anti-peeping device, thereby meeting the needs of different users. The anti-peeping device can be applied to different display panels, and has a wide range of market applications.

[0023] For the technical effects of the second aspect, please refer to the related explanation of the first aspect above, and the explanation will be omitted here. [Brief explanation of the drawings]

[0024] In order to more clearly describe the technical solutions in the embodiments of the present disclosure, the following briefly introduces drawings required in the description of the embodiments or prior art. It goes without saying that the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings based on these drawings without any creative work. [Figure 1] 1 is a cross-sectional view of an anti-peeping device according to a first embodiment of the present disclosure. [Figure 2] 2 is a cross-sectional view of the anti-peeping device shown in FIG. 1 at one viewing angle. FIG. [Figure 3] 1. FIG. 4 is a schematic cross-sectional view of the anti-peeping device in FIG. 1 at another viewing angle. [Figure 4] FIG. 10 is a schematic perspective view of a louver layer having a light-shielding portion with a strip structure according to some embodiments of the present disclosure. [Figure 5] FIG. 5 is a plan view of FIG. [Figure 6] FIG. 10 is a plan view of a louver layer having a light-shielding portion with a square-shaped ring structure according to some embodiments of the present disclosure. [Figure 7] FIG. 10 is a plan view of a louver layer having a light-shielding portion with a circular ring structure according to some embodiments of the present disclosure. [Figure 8] FIG. 1 is a plan view of a louver layer of a lattice structure according to some embodiments of the present disclosure. [Figure 9] FIG. 10 is a cross-sectional view of an anti-peeping display device according to a second embodiment of the present disclosure. [Figure 10] FIG. 10 is a cross-sectional view of an anti-peeping display device according to a third embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, the technical solutions according to the embodiments of the present disclosure will be clearly and completely described in conjunction with the drawings according to the embodiments of the present disclosure, and it goes without saying that the described embodiments are only some of the embodiments of the present disclosure, and not all of the embodiments, and based on the embodiments of the present disclosure, any other embodiments that can be obtained by a person skilled in the art without any creative effort will fall within the scope of protection of the present disclosure.

[0026] In describing the embodiments of the present disclosure, the terms "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying the relative importance or the number of such technical features. Thus, a feature qualified with "first" or "second" can explicitly or implicitly include at least one of the feature. In describing the present disclosure, "plurality" means at least two, e.g., two, three, etc., unless explicitly and specifically limited otherwise.

[0027] In this disclosure, unless otherwise clearly and specifically limited, terms such as "attached," "connected," "coupled," and "fixed" should be understood in a broad sense. For example, unless otherwise clearly and specifically limited, they may be fixedly connected, detachably connected, or integral, directly connected, indirectly connected via an intermediate medium, or may be in communication within two elements or an interactive relationship between two elements. Those skilled in the art can understand the specific meanings of the above terms in this disclosure according to specific circumstances.

[0028] In this disclosure, unless otherwise clearly and specifically limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intermediate medium. Furthermore, a first feature being "above," "above," and "on the upper surface" of a second feature may mean that the first feature is directly above or diagonally above the second feature, or may simply mean that the first feature has a higher horizontal height than the second feature. A first feature being "below," "below," and "on the lower surface" of a second feature may mean that the first feature is directly below or diagonally below the second feature, or may simply mean that the first feature has a lower horizontal height than the second feature.

[0029] In describing the present disclosure, orientations or positional relationships (if any) indicated by the terms "inside," "outside," "top," "bottom," "front," "rear," etc. are based on the orientations or positional relationships shown in FIG. 1 and are intended merely to facilitate and simplify the description of the present disclosure and do not indicate or imply that such devices or elements must have a particular orientation or be constructed and operated in a particular orientation, and should not be understood as limitations on the present disclosure.

[0030] Example 1 As shown in Figures 1, 2 and 3, Example 1 of the present disclosure provides an anti-peeping device 30, which includes an anti-peeping assembly 10, a frame 13 arranged around the anti-peeping assembly 10, and a driving module 20. The anti-peeping assembly 10 includes two first substrates 11 and a louver layer 12 interposed between the two first substrates 11. The louver layer 12 includes a translucent portion 121 and a shading portion 122 arranged adjacent to the translucent portion 121. Light rays entering the louver layer 12 from the first substrate 11 are blocked by the shading portion 122 and can only pass through the translucent portion 121, so that the user can only view the screen content within the viewing angle range. The driving module 20 is used to drive one first substrate 11 to move relative to the louver layer 12 along the thickness direction Z of the first substrate 11. In other words, when one of the two first substrates 11 is fixed and the other first substrate 11 is driven by the driving module 20 to move toward the louver layer 12, the louver layer 12 is compressed, thereby reducing the dimension of the translucent portion 121 in the thickness direction Z; when the other first substrate 11 is driven by the driving module 20 to move away from the louver layer 12, the deformation of the louver layer 12 gradually recovers, thereby adjusting the dimension of the translucent portion 121 in the thickness direction Z. Alternatively, the driving module 20 is used to drive the two first substrates 11 to move relative to the louver layer 12 along the thickness direction Z of the first substrates 11. In other words, when the driving module 20 simultaneously drives the two first substrates 11 to move closer to the louver layer 12, the louver layer 12 is compressed, thereby reducing the dimension of the translucent portion 121 in the thickness direction Z; when the two first substrates 11 are driven to move away from the louver layer 12, the deformation of the louver layer 12 recovers, thereby adjusting the dimension of the translucent portion 121 in the thickness direction Z and further adjusting the viewing angle of the light beam of the translucent portion 121.

[0031] The technical effect of the anti-peeping device 30 according to the first embodiment of the present disclosure, compared with the prior art, is that the present disclosure uses the driving module 20 to drive the first substrate 11 relative to the louver layer 12 along the thickness direction Z of the first substrate 11 so that the louver layer 12 is compressed or recovers from deformation in order to adjust the dimension of the light-transmitting portion 121 in the thickness direction Z. When light passes through louver layers 12 of different dimensions, the viewing angle of the light passing through each light-transmitting portion 121 can be adjusted. In this way, the anti-peeping device 30 can customize the viewing angle according to user needs without changing the structure of the anti-peeping device 30, thereby meeting the needs of different users. The anti-peeping device 30 can be applied to different display panels 40, and has a wide range of market applications.

[0032] Here, the first substrate 11 is typically made of a translucent material so that light can pass through. The first substrate 11 may be made of glass. Glass has a high refractive index and a high Abbe number, and thus has good light transmittance and a good display effect. Glass is also low cost and easy to process, which is advantageous for controlling the manufacturing cost of the first substrate 11. In this way, regardless of whether one first substrate 11 moves relative to the louver layer 12 or whether two first substrates 11 simultaneously move relative to the louver layer 12, the optical properties of the first substrate 11, such as the refractive index and light transmittance, do not change, ensuring that the anti-spy device 30 has an excellent display effect.

[0033] Of course, one of the two first substrates 11 in the anti-spy assembly 10 may be made of glass, and the other first substrate 11 may be made of thermosetting or UV-curing resin. In this case, by fixing the first substrate 11 made of resin to the light-emitting side of the display panel 40, the connection between the first substrate 11 and the display panel 40 can be ensured and deformation is small. Similarly, by making the first substrate 11 made of glass movable relative to the louver layer 12, the anti-spy device 30 can have a good display effect.

[0034] Furthermore, the thickness of the two first substrates 11 may be the same or different, and is not specifically limited here.

[0035] An explosion-proof film or other functional film layer may be provided on one side of the first substrate 11 so as to have a function corresponding to a functional film layer such as explosion-proof, and is not specifically limited here.

[0036] The viewing angle is the angle at which a user can clearly observe all content on the screen from different directions. The viewing angle includes two standards: horizontal viewing angle and vertical viewing angle. The horizontal viewing angle is based on the vertical normal of the display (i.e., the vertical imaginary line in the center of the display) and indicates that the displayed image remains normal at a certain angle to the left or right of the vertical normal. This angle range is the horizontal viewing angle of the LCD. Similarly, based on the horizontal normal, the viewing angle above and below is called the vertical viewing angle. Generally, unless otherwise specified, this viewing angle refers to the horizontal viewing angle. In addition, since the light-transmitting portions 121 and the light-blocking portions 122 of the louver layer 12 are uniformly arranged, the viewing angle of the anti-peeping device 30 refers to the viewing angle at which light passes through the light-transmitting portions 121 between two adjacent light-blocking portions 122 of the louver layer 12, as shown in FIG. 2.

[0037] As shown in FIGS. 2 and 3, in some embodiments, the frame 13 is an adhesive frame, and the inner walls of the frame 13 are fixed to the two first substrates 11 respectively.

[0038] The frame 13 is elastic because it is formed by adhesive, so that when the first substrate 11 moves relative to the louver layer 12 in the thickness direction Z of the first substrate 11, the frame 13 can deform along the thickness direction Z of the first substrate 11, i.e., it can be compressed or recover from deformation simultaneously with the louver layer 12, thereby maintaining a connection with the two first substrates 11 and ensuring a seal of the louver layer 12 between the first substrates 11, "isolating" the entire internal system from the outside and preventing dust from affecting the display effect, as well as contributing to adjusting the dimension of the louver layer 12 along the thickness direction Z of the first substrate 11 and further contributing to adjusting the viewing angle. In addition, the adhesive frame is directly fixed and sealed to the outer peripheries of the two first substrates 11, reducing the number of parts and favoring optimization of the structure of the anti-peeping device 30 and reducing costs.

[0039] Here, the adhesive frame literally refers to a frame 13 manufactured using an adhesive. The frame 13 mainly serves to reliably bond the two upper and lower first substrates 11 in the anti-spying assembly 10, and to securely connect and seal the two first substrates 11. The frame 13 may be a sealing adhesive frame or a frame made of hardened resin whose inner walls are fixed to the two first substrates 11 by adhesive.

[0040] In some embodiments, the frame 13 may be made of a rubber material. The frame 13 and the two first substrates 11 can be fixed together using adhesive or double-sided tape, which is relatively low cost and favorable for mass production.

[0041] 2 and 3, in some embodiments, two surfaces of the first substrate 11 of the frame 13 along the thickness direction Z are flush with the surfaces of the adjacent first substrate 11 that are spaced apart from the louver layer 12. This improves the flatness and design of the anti-peeping device 30.

[0042] In order to improve the roundness of the outer edge of the frame 13 located on the light-emitting side of the anti-peeping device 30, the frame 13 may be designed so that one of the outer edges of both sides along the thickness direction Z of the first substrate 11 is rounded. In this way, when the anti-peeping device 30 is attached to the light-emitting side of the display panel 40, the rounded surface is located on the side away from the display panel 40, which makes the overall appearance of the anti-peeping device 30 more rounded and is advantageous for improving the user experience. Alternatively, depending on actual needs, the frame 13 may be designed so that the outer edges of both sides of the thickness direction Z of the first substrate 11 are rounded, and this is not specifically limited here.

[0043] As shown in FIG. 1, in some embodiments, the driving module 20 includes a first magnetic assembly disposed between the two first substrates 11 and used to apply a magnetic force to the two first substrates 11 to bring the two first substrates 11 closer to each other so that the louver layer 12 is compressed, and a second magnetic assembly disposed between the two first substrates 11 and used to apply a magnetic force to the two first substrates 11 to move the two first substrates 11 away from each other so that the deformation of the louver layer 12 is restored.

[0044] 1, the first substrate 11 includes a display area 111 and a peripheral area 112 located around the display area 111, and the driving module 20 is provided between the two first substrates 11 and located within the peripheral area 112. This is advantageous for improving the display effect.

[0045] 1 to 3, in some embodiments, the first magnetic assembly includes two permanent magnets 21 with different magnetism, and the two permanent magnets 21 are respectively provided on adjacent sides of the two first substrates 11. In this way, the structure is simple, the cost is low, and it is easy to realize that the first substrate 11 moves in a direction approaching the louver layer 12 so that the louver layer 12 is compressed.

[0046] The two permanent magnets 21 are respectively provided in the peripheral region 112 between the two first substrates 11, which increases the display region 111 of the anti-peeping device 30 and is advantageous for improving the display effect. Specifically, the two permanent magnets 21 with different magnetic properties may be respectively attached to positions in the peripheral region 112 between the two first substrates 11 by a fixing means such as adhesive.

[0047] The number of first magnetic assemblies may be two or more. When the number is two, the first magnetic assemblies are installed on both the left and right sides of the two first substrates 11 facing each other along a direction perpendicular to the thickness direction Z, such as the horizontal direction X shown in FIG. 1 . In this way, the two symmetrically installed first magnetic assemblies effectively prevent the first substrate 11 from tilting when it moves relative to the louver layer 12 due to the driving module 20, ensure the horizontality of the first substrate 11, and contribute to improving the display effect.

[0048] Of course, if the dimensions of the first substrates 11 are relatively large, multiple first magnetic assemblies may be installed at the edge between the two first substrates 11, with each first magnetic assembly having the same magnetic force and the total magnetic force of the multiple first magnetic assemblies being the same, which further prevents the first substrates 11 from tilting when moving along the thickness direction Z and further improves the display effect.

[0049] The first magnetic assembly may include two permanent magnets 21 having different magnetic properties, as well as a structure made of two magnetic materials having different magnetic properties, and is not particularly limited here.

[0050] 1 to 3 , in some embodiments, the second magnetic assembly includes two electromagnets 22 having the same magnetic properties and a drive circuit electrically connected to the two electromagnets 22. The two electromagnets 22 are respectively provided on adjacent sides of the two first substrates 11 so as to face each other, and the drive circuit is used to control the magnitude of the input current to the coils of the two electromagnets 22. Because the magnetic force of the electromagnets 22 has a positive correlation with the magnitude of the input current, by controlling the magnitude of the input current to the coils of the two electromagnets 22 using the drive circuit, the magnitude of the magnetic force of the second magnetic assembly can be adjusted so that the louver layer 12 has different heights, allowing the user to obtain the viewing angle they require.

[0051] In addition, the second magnetic assemblies and the first magnetic assemblies are the same in number and are installed correspondingly, which can further improve the display effect.

[0052] 1, in some embodiments, each electromagnet 22 is embedded in a corresponding permanent magnet 21. In this way, when the electromagnets 22 are energized and operating, the two permanent magnets 21, which have different magnetic properties, are located within the magnetic field formed by the electromagnets 22, and contribute to canceling out the magnetic forces of the permanent magnets 21. Of course, instead of being embedded in the permanent magnets 21, the electromagnets 22 may be arranged side by side on the surfaces of the two first substrates 11 that are close to each other, and the electromagnets 22 and the permanent magnets 21 may be arranged close to each other or spaced apart, but it is preferable that the gap between them is not too large.

[0053] Specifically, the movement process of the anti-peeping device 30 is as follows.

[0054] As shown in Figure 2, in the initial state, the two first substrates 11 approach each other due to the attractive force of the two permanent magnets 21 until they come into close contact, at which point the louver layer 12 is compressed, and in this case the dimension of the light-transmitting portion 121 of the louver along the thickness direction Z of the first substrate 11 is smallest, i.e., the height of the light-transmitting portion 121 shown in Figure 2 is P, and the opening dimension of the light-transmitting portion 121 is width L as shown in Figure 2, and the viewing angle is calculated based on this. Note that at this time, the louver layer 12 is within the maximum amount of compressive deformation; otherwise, the elasticity of the louver layer 12 will be destroyed and the deformation will not be able to recover.

[0055] As shown in Figure 3, when electromagnet 22 is energized and begins to operate, louver layer 12 gradually recovers its deformation along thickness direction Z of first substrate 11 as first substrate 11 moves away from louver layer 12 due to being driven by electromagnet 22. This deformation gradually recovers until the height of light-transmitting portion 121 of louver layer 12 reaches P'. Because the width of light-transmitting portion 121 of louver layer 12 is much smaller than the height of light-transmitting portion 121, if the height of light-transmitting portion 121 changes, the opening dimension of light-transmitting portion 121 has a width of L as shown in Figure 3. Because the dimension of light-shielding portion 122 in horizontal direction X as shown in Figure 3 is small, if the height of light-transmitting portion 121 changes, the opening dimension of light-transmitting portion 121 remains L because the width deformation is small and negligible, as shown in Figure 3. The viewing angle at this time is calculated.

[0056] From the above, the viewing angle is proportional to the height of the light-transmitting portion 121, which is equal to the height of the louver layer and equal to the distance between the two first substrates 11. In other words, the viewing angle can be adjusted by adjusting the height of the light-transmitting portion 121.

[0057] Users can design different height louver layers 12 as needed, and adjust the viewing angle by the first magnetic assembly and the second magnetic assembly to achieve customized viewing angles.

[0058] As shown in Figures 4 to 8, in some embodiments, the number of light-shielding portions 122 is multiple, and the multiple light-shielding portions 122 are spaced apart along a direction perpendicular to the thickness direction Z, and the gap between two adjacent light-shielding portions 122 is a light-transmitting portion 121.

[0059] 4 and 5, in some embodiments, the light blocking portions 122 have a strip-like structure, and the light blocking portions 122 are arranged in a direction X perpendicular to the longitudinal direction Y of the light blocking portions 122. That is, the arrangement direction of the light blocking portions 122 is along the horizontal direction X shown in FIG. 4. In this way, when the anti-spying device 30 is installed on the light-emitting side of the display panel 40, anti-spying can be achieved in the horizontal direction X shown in FIG. 5, which is the arrangement direction X of the light blocking portions 122. Of course, the louver layer 12 can be rotated 90° to reverse the horizontal direction X and vertical direction Y shown in FIG. 5, that is, the strip-like light blocking portions 122 are arranged horizontally. This is applied to the light-emitting side of the display panel 40 that requires anti-spying in the vertical direction, and can be used to select the anti-spying function for one main direction as needed. For example, the screen of a terminal electronic device such as a mobile phone usually needs to be protected from peeping only in the horizontal direction X, that is, a louver layer 12 as shown in FIG. 5 can be adopted. Specifically, the selection can be made according to the actual application scenario, and no specific limitations are imposed here.

[0060] 6 and 7, in some embodiments, the light-shielding portion 122 has an annular structure, and a plurality of light-shielding portions 122 are arranged along the radial direction of the light-shielding portion 122. This can achieve an anti-peeping effect around the screen, and has a high anti-peeping effect.

[0061] The annular structure includes a circular annular structure or a square-shaped structure, and the specific shape of the annular structure can be selected and designed by selecting the structure of the shading portion 122 of the louver layer 12 according to the shape and dimensions of the actual screen, and is not specifically limited here.

[0062] 8, in some embodiments, the louver layer 12 has a lattice structure, including a plurality of intersecting shielding strips and lattice holes surrounded by the shielding strips, where the shielding strips are the light-shielding portions 122 and the lattice holes are the light-transmitting portions 121. Designing the louver layer 12 in a lattice shape contributes to both preventing peeping from the surroundings and improving the peeping prevention effect, and is applicable to special cases, such as environments with relatively high requirements for peeping prevention effect, especially those with relatively high requirements for confidentiality.

[0063] <Example 2> As shown in FIG. 9, Example 2 of the present disclosure provides an anti-peeping display device, which includes a display panel 40 and an anti-peeping device 30 such as that of Example 1, and the anti-peeping device 30 is provided on the light-emitting side of the display panel 40.

[0064] For the detailed structure of the anti-peeping device 30 included in the anti-peeping display device according to Example 2 of the present disclosure, please refer to Example 1 above, and a description thereof will be omitted here. Note that, since the anti-peeping device 30 is used in the anti-peeping display device according to Example 2 of the present disclosure, the embodiment of the anti-peeping display device according to the present disclosure includes all the technical solutions according to all the embodiments of the anti-peeping device 30, and can achieve the technical effects achieved by the technical solutions.

[0065] As shown in Figure 9, specifically, the display panel 40 includes a color film substrate 41, a liquid crystal layer 42, and an array substrate 43, which are stacked together, and one of the two first substrates 11 of the anti-peeping device 30 of Example 1 above, i.e., the lower first substrate 11 shown in Figure 9, is attached to the side of the color film substrate 41 away from the liquid crystal layer 42.

[0066] Here, the display panel 40 further includes two polarizing plates (not shown), and here, the polarizing plate located on the light output side may be provided between the color film substrate 41 and the adjacent first substrate 11, which is the lower first substrate 11 shown in FIG. 1, or may be provided on the upper first substrate 11, which is the first substrate 11 located on the side away from the color film substrate 41 in the anti-peeping device 30, which is the first substrate 11 shown in FIG. 9; no specific limitations are imposed here. The installation position of the other polarizing plate corresponding to the polarizing plate on the light output side may be determined by reference to related art, and a description thereof will be omitted here.

[0067] Example 3 10 , Example 3 of the present disclosure provides an anti-peeping display device including a display panel 40 and the anti-peeping device 30 according to the above-described example, and the anti-peeping display device according to Example 3 of the present disclosure differs from the anti-peeping display device according to Example 2 in that the connection method between the display panel 40 and the first substrate 11 is different. In Example 3 of the present disclosure, the color film substrate 41 includes a second substrate 411 and a common electrode layer 412, and the second substrate 411 is integrally formed with one of the two first substrates 11.

[0068] In Example 3 of the present disclosure, the structure of the display panel 40 is also different from the structure of the display panel 40 of Example 2. In Example 2, the first substrate 11 is directly connected to the color film substrate 41 of the display panel 40, whereas in Example 3 of the present disclosure, the second substrate 411 of the color film substrate 41 and one of the two first substrates 11 in the anti-peeping device 30 are shared. In other words, when manufacturing the display panel 40, the second substrate 411 of the color film substrate 41 and one of the two first substrates 11 in the anti-peeping device 30 are integrally molded, integrating the functions of both into one substrate. This reduces the thickness of one substrate from the total thickness of the anti-peeping display device and contributes to a slimmer design of the anti-peeping display device.

[0069] Here, the polarizing plate (not shown) located on the light output side of the display panel 40 is provided directly on the upper first substrate 11 shown in Figure 10, which is the first substrate 11 located on the side away from the color film substrate 41 in the anti-peeping device 30, making it easy to install the polarizing plate.For the installation of other polarizing plates (not shown) corresponding to the polarizing plate on the light output side, please refer to conventional related art and a description thereof will be omitted here.

[0070] The thicknesses of the components in Examples 1 to 3 shown in Figures 1 to 10 are merely examples for the purpose of clarifying the explanation, and the specific thickness dimensions are determined according to actual needs and are not specifically limited here.

[0071] In the description herein, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

[0072] The above description is merely a specific embodiment of the present disclosure, and the scope of protection of the present disclosure is not limited thereto. Those skilled in the art can easily think of modifications or substitutions within the technical scope described in the present disclosure, all of which should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure is subject to the scope of protection of the claims. (Other possible items) (Item 1) An anti-peeping device for use in a display, The anti-peeping device includes an anti-peeping assembly (10) and a frame (13) provided around the anti-peeping assembly (10), The anti-spying assembly (10) includes two first substrates (11) and a louver layer (12) interposed between the two first substrates (11); The louver layer (12) includes a light-transmitting portion (121) and a light-shielding portion (122) provided adjacent to the light-transmitting portion (121), The peeping prevention device is and a driving module (20) for driving at least one of the first substrates (11) to move relative to the louver layer (12) along the thickness direction of the first substrate (11) so that the louver layer (12) is compressed or recovers from deformation in order to adjust the dimension of the light-transmitting portion (121) in the thickness direction. Anti-peeping device. (Item 2) The drive module (20) a first magnetic assembly disposed between the two first substrates (11) and used to apply a magnetic force to the two first substrates (11) to bring the two first substrates (11) closer to each other so that the louver layer (12) is compressed; a second magnetic assembly provided between the two first substrates (11) and used to apply a magnetic force to the two first substrates (11) to separate the two first substrates (11) from each other so that the deformation of the louver layer (12) can be restored; Item 1. An anti-peeping device. (Item 3) The first magnetic assembly includes two permanent magnets (21) having different magnetic properties, and the two permanent magnets (21) are provided on adjacent side surfaces of the two first substrates (11), respectively. The anti-peeping device described in item 2. (Item 4) The second magnetic assembly includes two electromagnets (22) having the same magnetic properties and a drive circuit electrically connected to the two electromagnets (22); The two electromagnets (22) are provided on adjacent side surfaces of the two first substrates (11) so as to face each other, The drive circuit is used to control the magnitude of the input current to the coils of the two electromagnets (22). The anti-peeping device described in item 3. (Item 5) Each of the electromagnets (22) is fitted into a corresponding one of the permanent magnets (21). Item 4: An anti-peeping device. (Item 6) the number of the first magnetic assemblies is at least two; The anti-peeping device according to any one of items 2 to 5. (Item 7) The number of the second magnetic assemblies is the same as the number of the first magnetic assemblies. Item 6. An anti-peeping device. (Item 8) The first substrate (11) includes a display area (111) and a peripheral area (112) located around the display area (111), The driving module (20) is disposed between the two first substrates (11) and is located within the peripheral region (112). The anti-peeping device according to any one of items 1 to 5. (Item 9) The number of the light-shielding portions (122) is plural, the light-shielding portions (122) are spaced apart along a direction perpendicular to the thickness direction, and a gap between two adjacent light-shielding portions (122) is the light-transmitting portion (121). The anti-peeping device according to any one of items 1 to 5. (Item 10) The light-shielding portion (122) has a strip-like structure, and a plurality of the light-shielding portions (122) are arranged along a direction perpendicular to the longitudinal direction of the light-shielding portion (122). The anti-peeping device described in item 9. (Item 11) The light-shielding portion (122) has an annular structure, and a plurality of the light-shielding portions (122) are arranged along the radial direction of the light-shielding portion (122). The anti-peeping device described in item 9. (Item 12) The louver layer (12) has a lattice structure and includes a plurality of intersecting shielding strips and lattice holes surrounded by the shielding strips, the shielding strips being the light-shielding portions (122) and the lattice holes being the light-transmitting portions. The anti-peeping device according to any one of items 1 to 5. (Item 13) The frame (13) is an adhesive frame, and the inner walls of the frame (13) are fixed to the two first substrates (11), respectively. The anti-peeping device according to any one of items 1 to 5. (Item 14) Two surfaces of the frame (13) along the thickness direction of the first substrate (11) are flush with the surfaces of the adjacent first substrates (11) that are spaced apart from the louver layer (12). The anti-peeping device according to any one of items 1 to 5. (Item 15) A display panel (40); An anti-peeping display device including the anti-peeping device (30) according to any one of items 1 to 5, The anti-peeping device (30) is provided on the light-emitting side of the display panel (40). Anti-peeping display device. (Item 16) The display panel (40) includes a color film substrate (41), a liquid crystal layer (42), and an array substrate (43) that are stacked together. The color film substrate (41) includes a second substrate (411), which is integrally formed with one of the two first substrates (11); Item 16. The anti-peeping display device according to item 15. [Explanation of symbols]

[0073] 10 Anti-peeping assembly 11 First board 111 Display area 112 Surrounding Area 12 louver layers 121 Translucent part 122 Light blocking section 13 Picture Frame 20 Drive Module 21 Permanent magnets 22 Electromagnet 30 Anti-peeping device 40 Display Panel 41 Color film substrate 411 Second board 412 Common electrode layer 42 Liquid crystal layer 43 Array board

Claims

1. An anti-peeping device for use in a display, The anti-peeping device includes an anti-peeping assembly and a frame provided around the anti-peeping assembly, The anti-spying assembly includes two first substrates and a louver layer interposed between the two first substrates; the louver layer includes a light-transmitting portion and a light-shielding portion provided adjacent to the light-transmitting portion, The peeping prevention device is and a driving module configured to drive at least one of the first substrates to move relative to the louver layer along the thickness direction of the first substrate so that the louver layer is compressed or recovers from deformation in order to adjust the dimension of the light-transmitting portion in the thickness direction. Anti-peeping device.

2. The drive module includes: a first magnetic assembly disposed between the two first substrates and used to apply a magnetic force to the two first substrates to bring the two first substrates closer to each other so that the louver layer is compressed; a second magnetic assembly provided between the two first substrates and used to apply a magnetic force to the two first substrates to separate the two first substrates from each other so that the deformation of the louver layer is restored; The anti-peeping device according to claim 1.

3. the first magnetic assembly includes two permanent magnets having different magnetic properties, the two permanent magnets being provided on adjacent side surfaces of the two first substrates, respectively; The anti-peeping device according to claim 2.

4. the second magnetic assembly includes two electromagnets having the same magnetic properties and a drive circuit electrically connected to the two electromagnets; the two electromagnets are provided on adjacent side surfaces of the two first substrates so as to face each other, The drive circuit is used to control the magnitude of input current to the coils of the two electromagnets. The anti-peeping device according to claim 3.

5. Each of the electromagnets is fitted into a corresponding one of the permanent magnets. The anti-peeping device according to claim 4.

6. the number of the first magnetic assemblies is at least two; The anti-peeping device according to any one of claims 2 to 5.

7. the number of the second magnetic assemblies is the same as the number of the first magnetic assemblies; The anti-peeping device according to claim 6.

8. the first substrate includes a display area and a peripheral area located around the display area; the driving module is disposed between the two first substrates and located within the peripheral region; The anti-peeping device according to any one of claims 1 to 5.

9. the number of the light-shielding portions is plural, the light-shielding portions are spaced apart along a direction perpendicular to the thickness direction, and a gap between two adjacent light-shielding portions is the light-transmitting portion; The anti-peeping device according to any one of claims 1 to 5.

10. The light-shielding portion has a strip-like structure, and a plurality of the light-shielding portions are arranged along a direction perpendicular to the longitudinal direction of the light-shielding portion. The anti-peeping device according to claim 9.

11. The light-shielding portion has an annular structure, and a plurality of the light-shielding portions are arranged along a radial direction of the light-shielding portion. The anti-peeping device according to claim 9.

12. The louver layer has a lattice structure and includes a plurality of intersecting shielding strips and lattice holes surrounded by the shielding strips, the shielding strips being the light-shielding portions, and the lattice holes being the light-transmitting portions. The anti-peeping device according to any one of claims 1 to 5.

13. The frame is an adhesive frame, and inner walls of the frame are fixed to the two first substrates, respectively. The anti-peeping device according to any one of claims 1 to 5.

14. two surfaces of the frame along the thickness direction of the first substrate are flush with surfaces of the adjacent first substrates that are spaced apart from the louver layer; The anti-peeping device according to any one of claims 1 to 5.

15. A display panel; An anti-peeping display device including the anti-peeping device according to any one of claims 1 to 5, The anti-peeping device is provided on the light-emitting side of the display panel. Anti-peeping display device.

16. The display panel includes a color film substrate, a liquid crystal layer, and an array substrate, which are stacked together; The color film substrate includes a second substrate, and the second substrate is integrally formed with one of the two first substrates. The anti-peeping display device according to claim 15.

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