Privacy protection device and privacy protection 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 the priority of a Chinese patent application filed with the State Intellectual Property Office of China on November 30, 2022, with an application number of 202211515354.0 and an invention title of "Peeping Prevention Device and Peeping Prevention Display Device", and all its contents are incorporated into this disclosure by reference. This disclosure relates to the field of display technology, and particularly to a peeping prevention device and a peeping prevention display device.

Background Art

[0002] Display technology has already 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, and screen size. However, in some special display environments, it is required that the screen can only be seen by oneself and not by others, and the screen is provided with a peeping prevention display mode.

[0003] In related technologies, the louver layer of the peeping prevention device applied to display products all adopts a louver structure. However, in the case where the viewing angle needs to be changed, the conventional peeping prevention device needs to redesign and manufacture the louver structure of the new louver layer, and the modification process is complex and the cost is relatively high.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Embodiments of this disclosure provide a peeping prevention device and a peeping prevention display device to solve the problem that the viewing angle of the peeping prevention device in related technologies is fixed and cannot be adjusted, but it is not limited to this.

Means for Solving the Problems

[0005] According to a first aspect, an embodiment of the present disclosure provides a privacy device for use in a display, the privacy device comprising a privacy assembly, a frame provided around the privacy assembly, and a drive module, the privacy assembly comprising two first substrates and a louver layer interposed between the two first substrates, the louver layer comprising a light-transmitting portion and a light-shielding portion provided adjacent to the light-transmitting portion, and the drive module is used to drive at least one of the first substrates toward the louver layer along the thickness direction of the first substrates so that the louver layer is compressed or its deformation is restored in order to adjust the dimensions of the light-transmitting portion in the thickness direction.

[0006] In some embodiments, the drive module includes a first magnetic assembly provided between the two first substrates and used to apply a magnetic force to the two first substrates that brings them closer together so that the louver layer is compressed, and a second magnetic assembly provided between the two first substrates and used to apply a magnetic force to the two first substrates that separates them 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, the two permanent magnets being located on adjacent sides 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 located on adjacent sides of the two first substrates facing each other, and the drive circuit is used to control the magnitude of the input current to the coils of the two electromagnets.

[0009] In some embodiments, each electromagnet is fitted into the corresponding permanent magnet.

[0010] In some embodiments, the number of the 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 drive module is provided between two of the first substrates and located within the peripheral area.

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

[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-shielding portion has an annular structure, and a plurality of the light-shielding portions are arranged along the radial direction of the light-shielding portion.

[0016] In some embodiments, the louver layer has a grid structure and includes a plurality of intersecting shielding strips and grid holes surrounded by the shielding strips, wherein the shielding strips constitute the light-shielding portion and the grid holes constitute the light-transmitting portion.

[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, the two surfaces of the frame along the thickness direction of the first substrate are flush with the adjacent surface of the first substrate spaced apart from the louver layer.

[0019] The technical advantages of the privacy device according to the embodiment of this disclosure are that, compared to the prior art, this disclosure uses a drive module to drive the first substrate to move relative to the louver layer along the thickness direction of the first substrate so that the louver layer is compressed or its deformation is restored in order to adjust the dimensions of the light-transmitting portion in the thickness direction. When light rays pass through louver layers of different dimensions, the viewing angle of the light rays passing through each light-transmitting portion can be adjusted. In this way, the privacy device can customize the viewing angle according to user needs without changing the structure of the privacy device, and can meet the needs of different users. The privacy 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 a privacy display device including a display panel and a privacy device described in the first embodiment, wherein the privacy device is provided on the light-emitting 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, the color film substrate includes a second substrate, and the second substrate is integrally molded with one of the two first substrates.

[0022] The technical effect of the privacy display device according to the embodiment of this disclosure is that, employing the above-mentioned privacy device, this disclosure uses a drive module to drive the first substrate to move relative to the louver layer along the thickness direction of the first substrate so that the louver layer is compressed or its deformation is restored in order to adjust the dimensions of the light-transmitting portion in the thickness direction. When light rays pass through louver layers of different dimensions, the viewing angle of the light rays passing through each light-transmitting portion can be adjusted. In this way, the privacy device can customize the viewing angle according to user needs without changing the structure of the privacy device, and can meet the needs of different users. The privacy device can be applied to different display panels and has a wide range of market applications.

[0023] Note that for the technical effects of the second aspect, reference may be made to the relevant descriptions of the first aspect above, and the description will be omitted here.

Brief Description of the Drawings

[0024] To more clearly explain the technical solution means in the embodiments of the present disclosure, the drawings required in the following description of the embodiments or the prior art will be briefly introduced. Needless to say, the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can also obtain other drawings based on these drawings without creative labor. [Figure 1] It is a schematic cross-sectional view of the peeping prevention device according to Embodiment 1 of the present disclosure. [Figure 2] It is a schematic cross-sectional view of the peeping prevention device in FIG. 1 at one viewing angle. [Figure 3] It is a schematic cross-sectional view of the peeping prevention device in FIG. 1 at another viewing angle. [[ID=X]] [Figure 4] It is a schematic perspective view of a louver layer in which the light shielding portion according to some embodiments of the present disclosure has a strip structure. [Figure 5] It is a plan view of FIG. 4. [Figure 6] It is a plan view of a louver layer in which the light shielding portion according to some embodiments of the present disclosure has a square-shaped annular structure. [Figure 7] It is a plan view of a louver layer in which the light shielding portion according to some embodiments of the present disclosure has a circular annular structure. [Figure 8] It is a plan view of a louver layer with a grid structure according to some embodiments of the present disclosure. [Figure 9] It is a schematic cross-sectional view of the peeping prevention display device according to Embodiment 2 of the present disclosure. [Figure 10] It is a schematic cross-sectional view of the peeping prevention display device according to Embodiment 3 of the present disclosure.

Modes for Carrying Out the Invention

[0025] Hereinafter, with reference to the drawings relating to the embodiments of this disclosure, the technical solutions relating to the embodiments of this disclosure will be clearly and completely described. Needless to say, the embodiments described are only some, not all, embodiments of this disclosure. Based on the embodiments relating to this disclosure, a person skilled in the art will know that all other embodiments that can be obtained without creative work are all within the scope of protection of this disclosure.

[0026] In the descriptions of the embodiments of this disclosure, the terms “first” and “second” are for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of such technical features. Thus, features limited by “first” and “second” may explicitly or implicitly include at least one such feature. In the descriptions of this disclosure, “multiple” means at least two, for example, two, three, etc., unless otherwise clearly and specifically limited.

[0027] In this disclosure, unless otherwise expressly and specifically limited, terms such as “attachment,” “connection,” “coupling,” and “fixing” should be understood in a broad sense. For example, unless otherwise expressly and specifically limited, a connection may be fixed, detachably connected, integral, directly connected, indirectly connected via an intermediate medium, or be an internal communication or interaction relationship between two elements. Those skilled in the art will be able to understand the specific meaning of these terms in this disclosure depending on the specific circumstances.

[0028] In this disclosure, unless otherwise expressly and specifically limited, the presence of a first feature "above" or "below" a second feature may mean that the first and second features are in direct contact, or that they are indirectly in contact via an intermediate medium. Furthermore, the presence of a first feature "above," "above," and "on the top surface" of a second feature may mean that the first feature is directly above or diagonally above the second feature, or that the first feature is at a greater horizontal height than the second feature. The presence of a first feature "below," "below," and "on the bottom surface" of a second feature may mean that the first feature is directly below or diagonally below the second feature, or that the first feature is at a less horizontal height than the second feature.

[0029] In the description of this disclosure, any orientation or positional relationship indicated by terms such as "inside," "outside," "top," "bottom," "front," and "back" is based on the orientation or positional relationship shown in Figure 1 and is intended solely to facilitate and simplify the explanation of this disclosure. It does not indicate or imply that such device or element has a specific orientation or must be constructed and operated in a specific orientation, and should not be understood as a limitation on this disclosure.

[0030] <Example 1> As shown in Figures 1, 2, and 3, Embodiment 1 of the present disclosure provides a privacy device 30 comprising a privacy assembly 10, a frame 13 provided around the privacy assembly 10, and a drive module 20, wherein the privacy assembly 10 comprises two first substrates 11 and a louver layer 12 interposed between the two first substrates 11, the louver layer 12 comprising a light-transmitting portion 121 and a light-shielding portion 122 provided adjacent to the light-transmitting portion 121, and light rays entering the louver layer 12 from the first substrates 11 are blocked by the light-shielding portion 122 and can only pass through the light-transmitting portion 121, thereby allowing the user to see the screen content only when it is within the viewing angle range. The drive 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, if one of the two first substrates 11 is fixed and the other first substrate 11 is driven by the drive module 20 to move toward the louver layer 12, the louver layer 12 is compressed, thereby reducing the dimension of the light-transmitting portion 121 in the thickness direction Z. If the other first substrate 11 is driven by the drive module 20 to move toward the louver layer 12, the deformation of the louver layer 12 gradually recovers, thereby adjusting the dimension of the light-transmitting portion 121 in the thickness direction Z. Alternatively, the drive 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 two first substrates 11 are driven simultaneously by the drive module 20 and move toward the louver layer 12, the louver layer 12 is compressed, thereby reducing the dimension of the light-transmitting portion 121 in the thickness direction Z. When the two first substrates 11 are driven and move toward the louver layer 12, the deformation of the louver layer 12 is restored, thereby adjusting the dimension of the light-transmitting portion 121 in the thickness direction Z, and further adjusting the viewing angle of the light rays of the light-transmitting portion 121.

[0031] The technical advantages of the privacy device 30 according to Embodiment 1 of this disclosure are that, compared to the prior art, this disclosure uses a drive module 20 to drive the first substrate 11 to move along the thickness direction Z of the first substrate 11 relative to the louver layer 12 so that the louver layer 12 is compressed or its deformation is restored in order to adjust the dimensions of the light-transmitting portion 121 in the thickness direction Z. When light rays are transmitted through louver layers 12 of different dimensions, the viewing angle of the light rays transmitted through each light-transmitting portion 121 can be adjusted. In this way, the privacy device 30 can customize the viewing angle according to user needs without changing the structure of the privacy device 30, and can meet the needs of different users. The privacy 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 usually manufactured from a translucent material so that light rays can pass through. The first substrate 11 may also be manufactured from glass. Glass has a high refractive index and a high Abbe number, good light transmission and good display effect, and is also inexpensive and easy to process, which is advantageous in controlling the manufacturing cost of the first substrate 11. In this way, whether one first substrate 11 moves relative to the louver layer 12 or two first substrates 11 move relative to the louver layer 12 simultaneously, the optical properties of the first substrate 11, such as refractive index and light transmittance, do not change, and it is ensured that the anti-peeping device 30 has an excellent display effect.

[0033] Of course, one of the two first substrates 11 in the privacy shield 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 can be minimized. Similarly, by making the first substrate 11 made of glass movable relative to the louver layer 12, the privacy shield 30 can be given a good display effect.

[0034] Furthermore, the thicknesses of the two first substrates 11 may be the same or different, and are 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 to have a function corresponding to an explosion-proof or other functional film layer, and this is not specifically limited thereto.

[0036] The viewing angle is the angle at which a user can clearly observe all the content on the screen from different directions. The viewing angle includes two standards: the horizontal viewing angle and the vertical viewing angle. The horizontal viewing angle is based on the vertical normal of the display (i.e., the vertical imaginary line in the middle of the display), and indicates that the displayed image still appears normal at a certain angle to the left or right of the vertical normal. This angular range is the horizontal viewing angle of the liquid crystal display. Similarly, the vertical viewing angle is the vertical viewing angle, based on the horizontal normal. Generally, unless explicitly stated, such a viewing angle refers to the horizontal viewing angle. Furthermore, since the light-transmitting portion 121 and the light-blocking portion 122 of the louver layer 12 are uniformly arranged, the viewing angle of the privacy device 30, as shown in Figure 2, means the viewing angle at which light rays pass through the light-transmitting portion 121 between two adjacent light-blocking portions 122 of the louver layer 12.

[0037] As shown in Figures 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 formed by adhesive and is therefore elastic. As a result, when the first substrate 11 moves relative to the louver layer 12 along the thickness direction Z of the first substrate 11, the frame 13 can deform along the thickness direction Z of the first substrate 11. That is, it can be compressed simultaneously with the louver layer 12 or recover from deformation. This maintains the connection between the two first substrates 11, ensuring the sealing of the louver layer 12 between the first substrates 11, "isolates" the entire internal system from the outside, preventing dust from entering and affecting the display effect. It also contributes to adjusting the dimensions of the louver layer 12 along the thickness direction Z of the first substrate 11, and further contributes to adjusting the viewing angle. In addition, by directly fixing and sealing the adhesive frame to the outer circumference of the two first substrates 11, the number of parts is reduced, which is advantageous for optimizing the structure of the privacy device 30 and also contributes to cost reduction.

[0039] Here, the adhesive frame refers to a frame 13 that is literally manufactured using adhesive. The frame 13 primarily serves to securely bond the two upper and lower layers of first substrates 11 in the privacy shield assembly 10, and to fix and seal the two first substrates 11 together. In addition to an adhesive sealing frame, the frame 13 may also be a frame made of curing resin, whose inner walls are fixed to the two first substrates 11 by adhesive.

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

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

[0042] To improve the roundness of the outer edge of the privacy device 30 on the Idemitsu side of the frame 13, the frame 13 may be designed so that one of the outer edges on both sides along the thickness direction Z of the first substrate 11 is rounded. In this way, when the privacy device 30 is attached to the Idemitsu 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 privacy device 30 more rounded, which is advantageous for improving the user experience. Alternatively, depending on the actual needs, the frame 13 may be designed so that the outer edges on both sides along the thickness direction Z of the first substrate 11 are rounded, and this is not specifically limited here.

[0043] As shown in Figure 1, in some embodiments, the drive module 20 includes a first magnetic assembly provided between two first substrates 11 and used to apply a magnetic force to the two first substrates 11 that brings them closer together so that the louver layer 12 is compressed, and a second magnetic assembly provided between the two first substrates 11 and used to apply a magnetic force to the two first substrates 11 that separates them so that the deformation of the louver layer 12 is restored.

[0044] As shown in Figure 1, the first substrate 11 includes a display area 111 and a peripheral area 112 located around the display area 111, and the drive 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] As shown in Figures 1 to 3, in some embodiments, the first magnetic assembly includes two permanent magnets 21 with different magnetic properties, and the two permanent magnets 21 are provided on adjacent sides of two first substrates 11, respectively. In this way, the structure is simple, the cost is low, and it is easy to achieve that the first substrate 11 moves in a direction toward the louver layer 12 so that the louver layer 12 is compressed.

[0046] The two permanent magnets 21 are each provided within the peripheral region 112 between the two first substrates 11, thereby increasing the display area 111 of the privacy device 30, which is advantageous for improving the display effect. Specifically, the two permanent magnets 21, each having different magnetic properties, may be attached to the peripheral region 112 between the two first substrates 11 by fixing means such as adhesive.

[0047] The number of first magnetic assemblies may be two or more. If there are two first magnetic assemblies, they are installed on the left and right sides between the two first substrates 11 so as to face each other along a direction perpendicular to the thickness direction Z, such as the horizontal direction X as shown in Figure 1. Thus, the two first magnetic assemblies, installed symmetrically, effectively prevent the first substrates 11 from tilting when they move relative to the louver layer 12 by the drive module 20, ensuring the horizontality of the first substrates 11 and contributing to an improved display effect.

[0048] Of course, if the dimensions of the first substrate 11 are relatively large, multiple first magnetic assemblies may be placed on the edge between two first substrates 11, with each first magnetic assembly having the same magnitude of magnetic force, and the sum of the magnetic forces of the multiple first magnetic assemblies being the same. This further avoids tilting when the first substrate 11 moves along the thickness direction Z, and further improves the display effect.

[0049] The first magnetic assembly may also include, but is not limited to, a structure made of two magnetic materials having different magnetic properties, in addition to two permanent magnets 21 having different magnetic properties.

[0050] As shown in Figures 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 respectively mounted on adjacent sides of two first substrates 11 facing each other, and the drive circuit is used to control the magnitude of the input current to the coils of the two electromagnets 22. Since the magnetic force of the electromagnets 22 has a positive correlation with the magnitude of the input current, the magnitude of the magnetic force of the second magnetic assembly can be adjusted so that the louver layers 12 are at different heights by controlling the magnitude of the input current to the coils of the two electromagnets 22 with the drive circuit, thereby obtaining the viewing angle required by the user.

[0051] Furthermore, the second magnetic assembly and the first magnetic assembly are of the same number and are installed in a corresponding manner. In this way, the display effect can be further improved.

[0052] As shown in Figure 1, in some embodiments, each electromagnet 22 is fitted into a corresponding permanent magnet 21. In this way, when the electromagnet 22 is energized and operating, the two permanent magnets 21, which have different magnetic properties, are located within the magnetic field formed by the electromagnet 22 and contribute to canceling out the magnetic forces of the permanent magnets 21. Of course, in addition to being fitted into the permanent magnets 21, the electromagnets 22 may also 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 permanent magnets 21 may be placed close together or spaced apart, but it is preferable that the distance between them not be 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 are brought close together by the attractive force of the two permanent magnets 21 until the two permanent magnets 21 are in close contact. At this time, the louver layer 12 is compressed, and in this case the dimension of the translucent portion 121 of the louver along the thickness direction Z of the first substrate 11 is smallest. That is, the height of the translucent portion 121 shown in Figure 2 is P, and the opening dimension of the translucent portion 121 is width L as shown in Figure 2, and the viewing angle is calculated. Note that at this time, the louver layer 12 is within the maximum compressive deformation range; otherwise, the elasticity of the louver layer 12 is broken and the deformation cannot be recovered.

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

[0056] From the above, the viewing angle is proportional to the height of the light-transmitting section 121, where the height of the light-transmitting section 121 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 section 121.

[0057] The user can design louver layers 12 of different heights as needed, and the viewing angle can be adjusted using the first and second magnetic assemblies, enabling customization of the viewing angle.

[0058] As shown in Figures 4 to 8, in some embodiments, there are multiple light-shielding portions 122, which 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] As shown in Figures 4 and 5, in some embodiments, the light-shielding portion 122 has a strip-like structure, and multiple light-shielding portions 122 are arranged along a direction X perpendicular to the longitudinal direction Y of the light-shielding portion 122, that is, the arrangement direction of the light-shielding portions 122 is along the horizontal direction X shown in Figure 4. In this way, when the anti-peeping device 30 is installed on the light-emitting side of the display panel 40, it is possible to achieve anti-peeping in the horizontal direction X shown in Figure 5, which is the arrangement direction X of the light-shielding portions 122. Of course, the louver layer 12 is rotated 90° to change the horizontal direction X and vertical direction Y shown in Figure 5, that is, the strip-like light-shielding portions 122 are arranged horizontally. This is applied to the light-emitting side of the display panel 40 where vertical anti-peeping is required and is used to select one main direction of anti-peeping function as needed. For example, the screens of electronic devices such as mobile phones typically only need to prevent prying eyes in the horizontal direction X. That is, a louver layer 12 as shown in Figure 5 can be used, and the specific design can be selected according to the actual application scenario, and is not specifically limited here.

[0060] As shown in Figures 6 and 7, in some embodiments, the light-shielding portion 122 has an annular structure, and multiple light-shielding portions 122 are arranged along the radial direction of the light-shielding portion 122. This makes it possible to achieve an anti-peeping effect around the screen, resulting in a high level of anti-peeping effect.

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

[0062] As shown in Figure 8, in some embodiments, the louver layer 12 has a grid-like structure and includes a plurality of intersecting shielding strips and grid holes surrounded by the shielding strips, where the shielding strips are light-shielding portions 122 and the grid holes are light-transmitting portions 121. Designing the louver layer 12 in a grid shape contributes to both preventing peeping into the surroundings and improving the peeping prevention effect, and is applied in special cases where the requirement for peeping prevention is relatively high, and especially in environments where the requirement for confidentiality is relatively high.

[0063] <Example 2> As shown in Figure 9, Embodiment 2 of the present disclosure provides a privacy display device, which includes a display panel 40 and a privacy device 30 as in Embodiment 1, wherein the privacy device 30 is provided on the light-emitting side of the display panel 40.

[0064] The detailed structure of the anti-peeping device 30 included in the anti-peeping display device according to Embodiment 2 of this disclosure can be found by referring to Embodiment 1 above, and will not be described here. Since the anti-peeping device 30 is used in the anti-peeping display device according to this disclosure, the embodiments of the anti-peeping display device according to this disclosure include all the technical solutions related to all embodiments of the anti-peeping device 30 and can achieve the technical effects of the technical solutions.

[0065] As shown in Figure 9, specifically, the display panel 40 includes a stacked color film substrate 41, a liquid crystal layer 42, and an array substrate 43. One of the two first substrates 11 of the privacy device 30 of Embodiment 1, i.e., the lower first substrate 11 shown in Figure 9, is attached to the side of the color film substrate 41 that is separated from the liquid crystal layer 42.

[0066] Here, the display panel 40 further includes two polarizing plates (not shown), where the polarizing plate located on the Idemitsu side may be provided between the color film substrate 41 and the lower first substrate 11 shown in Figure 1, which is adjacent to it, or on the upper first substrate 11 shown in Figure 9, which is located on the side of the anti-peeping device 30 that is separated from the color film substrate 41, and is not specifically limited here. The installation position of the other polarizing plate corresponding to the polarizing plate on the Idemitsu side will be explained by referring to the prior art, and will not be described here.

[0067] <Example 3> As shown in Figure 10, Embodiment 3 of the present disclosure provides a privacy display device including a display panel 40 and a privacy device 30 according to the above embodiment, and the privacy display device according to Embodiment 3 of the present disclosure differs from the privacy display device according to Embodiment 2 in that the connection method between the display panel 40 and the first substrate 11 is different. In Embodiment 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 molded with one of the two first substrates 11.

[0068] In Embodiment 3 of this disclosure, the structure of the display panel 40 also differs from that of the display panel 40 in Embodiment 2. In Embodiment 2, the first substrate 11 is directly connected to the color film substrate 41 of the display panel 40, whereas in Embodiment 3 of this disclosure, the second substrate 411 of the color film substrate 41 and one of the two first substrates 11 in the privacy device 30 are used interchangeably. 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 privacy device 30 are integrally molded, integrating the functions of both into a single substrate. This reduces the thickness of one substrate from the total thickness of the privacy device, contributing to a thinner design for the privacy device.

[0069] Here, the polarizing plate (not shown) located on the Idemitsu side of the display panel 40 is directly provided 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 privacy device 30, to facilitate the installation of the polarizing plate. Regarding the installation of other polarizing plates (not shown) corresponding to the polarizing plate on the Idemitsu side, please refer to the conventional related technologies and we will omit the explanation here.

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

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

[0072] The above descriptions are merely specific embodiments of the Disclosure, and the scope of protection of the Disclosure is not limited thereto. A person skilled in the art can easily conceive of modifications or substitutions within the technical scope described in the Disclosure, and such modifications or substitutions should all fall within the scope of protection of the Disclosure. Therefore, the scope of protection of the Disclosure is equivalent to the scope of protection of the claims. (Other possible items) (Item 1) A privacy screen device used for displays, The anti-peeping device includes an anti-peeping assembly (10) and a frame (13) provided around the anti-peeping assembly (10), The privacy-protection 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 aforementioned anti-peeping device is, To adjust the dimensions of the light-transmitting portion (121) in the thickness direction, the louver layer (12) is further driven by a drive module (20) 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 substrate (11) so that the louver layer (12) is compressed or its deformation is restored. Privacy screen protector. (Item 2) The aforementioned drive module (20) A first magnetic assembly is provided between the two first substrates (11) and is used to apply a magnetic force to the two first substrates (11) that brings them closer together so that the louver layer (12) is compressed. The present invention includes a second magnetic assembly provided between the two first substrates (11) and used to apply a magnetic force to the two first substrates (11) that separates the two first substrates (11) from each other so that the deformation of the louver layer (12) can be restored, The privacy screen device described in item 1. (Item 3) The first magnetic assembly includes two permanent magnets (21) with different magnetic properties, and the two permanent magnets (21) are provided on adjacent sides of the two first substrates (11), The privacy 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 sides 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 privacy device described in item 3. (Item 5) Each of the electromagnets (22) is fitted into the corresponding permanent magnet (21). The privacy screen device described in item 4. (Item 6) The number of the first magnetic assemblies is at least two. A privacy screen device as described in any one of items 2 through 5. (Item 7) The number of the second magnetic assembly is the same as the number of the first magnetic assembly. The privacy device described in item 6. (Item 8) The first substrate (11) includes a display area (111) and a peripheral area (112) located around the display area (111). The drive module (20) is provided between the two first substrates (11) and located within the peripheral region (112), A privacy screen device as described in any one of items 1 through 5. (Item 9) 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, and the gap between two adjacent light-shielding portions (122) is the light-transmitting portion (121). A privacy screen device as described in any one of items 1 through 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 privacy screen 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 privacy screen device described in item 9. (Item 12) The louver layer (12) has a grid structure and includes a plurality of intersecting shielding strips and grid holes surrounded by the shielding strips, wherein the shielding strips constitute the light-shielding portion (122) and the grid holes constitute the light-transmitting portion. A privacy screen device as described in any one of items 1 through 5. (Item 13) The frame (13) is an adhesive frame, and the inner wall of the frame (13) is fixed to the two first substrates (11), respectively. A privacy screen device as described in any one of items 1 through 5. (Item 14) The two surfaces of the frame (13) along the thickness direction of the first substrate (11) are each flush with the adjacent surface of the first substrate (11) that is spaced apart from the louver layer (12). A privacy screen device as described in any one of items 1 through 5. (Item 15) Display panel (40), A privacy display device including a privacy device (30) described in any one of items 1 to 5, The aforementioned privacy device (30) is provided on the light-emitting side of the display panel (40), Privacy screen display. (Item 16) The display panel (40) includes a stacked color film substrate (41), a liquid crystal layer (42), and an array substrate (43). The color film substrate (41) includes a second substrate (411), the second substrate being integrally molded with one of the two first substrates (11). The privacy screen display described in item 15. [Explanation of symbols]

[0073] 10. Privacy Assembly 11. First circuit board 111 Display area 112 Peripheral area 12 Louver layer 121 Translucent part 122 Light-shielding part 13 Picture Frames 20 Drive Modules 21 Permanent Magnets 22 Electromagnet 30. Privacy screen 40 Display Panel 41 Color film substrate 411 Second board 412 Common electrode layer 42 liquid crystal layers 43 Array substrate

Claims

1. A privacy screen device used in displays, The anti-peeping device includes an anti-peeping assembly and a frame provided around the anti-peeping assembly, The privacy-prevention 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 aforementioned anti-peeping device is, The system further includes a drive module used to drive at least one of the two first substrates to move along the thickness direction of the first substrate so that the louver layer is compressed or its deformation is restored by driving at least one of the two first substrates to move the two first substrates relative to each other in order to adjust the dimensions of the light-transmitting portion in the thickness direction, The number of light-shielding portions is multiple, and the multiple 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. Privacy screen protector.

2. The anti-peeping device according to claim 1, wherein the drive module fixes one of the two first substrates and drives the other first substrate to move, or drives both of the two first substrates to move, thereby compressing or restoring the deformation of the louver layer.

3. A privacy device used for a display, The anti-peeping device includes an anti-peeping assembly and a frame provided around the anti-peeping assembly, The privacy-prevention 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 aforementioned anti-peeping device is, To adjust the dimensions of the light-transmitting portion in the thickness direction, the louver layer further includes a drive module used 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 its deformation is restored. The aforementioned drive module is A first magnetic assembly provided between the two first substrates and used to apply a magnetic force to the two first substrates that brings them closer together so that the louver layer is compressed, The present invention includes a second magnetic assembly provided between the two first substrates and used to apply a magnetic force to the two first substrates that separates the two first substrates from each other so that the deformation of the louver layer can be restored, Privacy screen protector.

4. The first magnetic assembly includes two permanent magnets with different magnetic properties, and the two permanent magnets are provided on adjacent sides of the two first substrates, The anti-peeping device according to claim 3.

5. 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 sides of the two first substrates so as to face each other. The aforementioned drive circuit is used to control the magnitude of the input current to the coils of the two electromagnets. The anti-peeping device according to claim 4.

6. Each of the electromagnets is fitted into the corresponding permanent magnet. The anti-peeping device according to claim 5.

7. The number of the first magnetic assemblies is at least two. The anti-peeping device according to claim 3.

8. The number of the second magnetic assembly is the same as the number of the first magnetic assembly. The anti-peeping device according to claim 7.

9. The first substrate includes a display area and a peripheral area located around the display area. The drive module is provided between the two first substrates and located within the peripheral region. The privacy device according to any one of claims 1 to 8.

10. The number of light-shielding portions is multiple, and the multiple 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. The anti-peeping device according to claim 3.

11. 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 privacy device according to any one of claims 1, 2, and 10.

12. The light-shielding portion has an annular structure, and a plurality of the light-shielding portions are arranged along the radial direction of the light-shielding portion. The privacy device according to any one of claims 1, 2, and 10.

13. The louver layer has a grid structure and includes a plurality of intersecting shielding strips and grid holes surrounded by the shielding strips, wherein the shielding strips constitute the light-shielding portion and the grid holes constitute the light-transmitting portion. The privacy device according to any one of claims 1 to 8.

14. The frame is an adhesive frame, and the inner walls of the frame are fixed to the two first substrates, respectively. The privacy device according to any one of claims 1 to 8.

15. The two surfaces of the frame along the thickness direction of the first substrate are each flush with the adjacent surface of the first substrate that is spaced apart from the louver layer. The privacy device according to any one of claims 1 to 8.

16. Display panel and A privacy display device comprising a privacy device according to any one of claims 1 to 8, The aforementioned privacy device is provided on the light-emitting side of the display panel. Privacy screen display.

17. The display panel includes a stacked color film substrate, a liquid crystal layer, and an array substrate. The color film substrate includes a second substrate, the second substrate being integrally molded with one of the two first substrates. The privacy display device according to claim 16.

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