Anti-peeping assembly, display device and anti-peeping display method

Abstract

The invention provides a peep-proof assembly, a display device and a peep-proof display method. Through the cooperative work of the magnetic control valve and the control module, the magnetic control fluid can be controlled to be located in the second cavity of the marginal area in the non-peep-proof mode, and the magnetic control fluid can be controlled to be located in the first cavity of the peep-proof functional area in the peep-proof mode, so that quick switching between peep prevention and non-peep prevention is achieved; meanwhile, the motion state of the magnetic control fluid in the first cavity is controlled, the peep-proof angle can be adjusted, and local peep prevention can be achieved.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and in particular, to an anti-peeping component, a display device, and an anti-peeping display method. Background Art

[0002] With the development of display technologies, various personalized requirements have also received attention. Display devices with anti-peeping functions have emerged, and anti-peeping modules have been born.

[0003] Among them, the anti-peeping film is the most common. It is equivalent to adding an anti-peeping coating to the mobile phone tempered film and uses the micro-louver optical technology. However, there are also many inconveniences when using the anti-peeping film. For example, after using the anti-peeping film, it is impossible to adjust the viewing angle in the anti-peeping mode, quickly switch between anti-peeping and non-anti-peeping, and achieve local anti-peeping. Summary of the Invention

[0004] The main technical problem to be solved by the present application is to provide an anti-peeping component, a display device, and an anti-peeping display method, so as to solve the problems in the prior art that the anti-peeping viewing angle cannot be adjusted and the switching between anti-peeping and non-anti-peeping cannot be achieved.

[0005] To solve the above technical problem, the first technical solution provided by the present application is: to provide an anti-peeping component having an anti-peeping functional area and an edge area located on the side of the anti-peeping functional area; wherein, it includes: An anti-peeping module having a first chamber located in the anti-peeping functional area and a second chamber located in the edge area; the anti-peeping module includes a magnetic control valve located in the edge area; the magnetic control valve is used to selectively connect the first chamber and the second chamber; Magnetorheological fluid, at least part of which is arranged in the second chamber; the magnetorheological fluid is a light-shielding material; A control module for controlling the opening and closing state of the magnetic control valve, and also for controlling the movement state of the magnetorheological fluid between the first chamber and the second chamber.

[0006] Wherein, the magnetic control valve includes a base, an elastic member, and a magnetophilic structure; The base encloses to form a channel, and the channel constitutes at least a part of the second chamber; the magnetophilic structure is located between the first chamber and the second chamber; in the direction of the elastic force of the elastic member, one end of the elastic member is connected to the magnetophilic structure, and the other end is connected inside the base; When the magnetic control valve is in the open state, the magnetic suction force acting on the magnetophilic structure outside the magnetic control valve is less than the elastic force acting on the magnetophilic structure by the elastic member, the magnetophilic structure is spaced from the base, and the first chamber and the second chamber communicate with each other; When the magnetic control valve is in the closed state, the magnetic suction force acting on the magnetophilic structure outside the magnetic control valve is greater than the elastic force acting on the magnetophilic structure by the elastic member, the magnetophilic structure is configured to be in contact with the base and at least block the port of the channel, and the first chamber and the second chamber are isolated from each other.

[0007] Among them, one side of the base facing the first chamber has a mounting groove, and the elastic member is at least partially disposed in the mounting groove; when the magnetic control valve is in the closed state, the magnetophilic structure seals the port of the channel facing the first chamber and the notch of the mounting groove.

[0008] Among them, the magnetic control valves are arranged in one-to-one correspondence with the second chambers; among them, there is one second chamber, and it is located on one side of the first chamber along the elastic force direction; Or, there are multiple second chambers, the multiple second chambers are arranged side by side, and they are located on one side of the first chamber along the elastic force direction; Or, there are multiple second chambers, and the multiple second chambers are respectively located on opposite sides of the first chamber along the elastic force direction.

[0009] The anti-peeping module further includes a reflective layer, and the reflective layer includes: A reflective coating disposed on the surface of the magnetophilic structure of the magnetic control valve close to the first chamber; And / or, A reflective coating disposed on the light incident side surface of the anti-peeping module and located in the edge area.

[0010] Among them, the anti-peeping module further includes a frame, and the frame has transparency and insulation; Among them, the frame includes a first frame and a second frame; the first frame is used to form the first chamber, and the second frame is used to form the second chamber; the magnetic control valve is disposed between the first frame and the second frame; Or, the base of the magnetic control valve surrounds to form the second chamber, and the frame is used to form the first chamber; Or, the magnetic control valve is internally disposed in the frame, and divides the space surrounded by the frame into a first chamber and a second chamber.

[0011] Among them, the control module includes a control circuit and a first electromagnetic element, and the control circuit controls the opening and closing state of the magnetic control valve by controlling the energization state of the first electromagnetic element; The first electromagnetic element is disposed on the side of the corresponding magnetic control valve away from the first chamber, and is at least partially opposite to the magnetophilic structure.

[0012] Among them, the control module further includes a plurality of second electromagnetic elements arranged at intervals, and the control circuit controls the movement state of the magneto-controlled fluid between the first chamber and the second chamber by controlling the energization state of the second electromagnetic elements; The second electromagnetic elements are disposed on the light incident side of the anti-peeping module, or the second electromagnetic elements are disposed on the light exiting side of the anti-peeping module.

[0013] Among them, the control module further includes a support structure and a heat conduction layer, the support structure and the heat conduction layer are mutually covered to form a receiving space, and the second electromagnetic elements are disposed in the receiving space.

[0014] To solve the above technical problems, the second technical solution provided by this application is: to provide a display device, which includes at least one anti-peeping component, and the anti-peeping component is the above-mentioned anti-peeping component.

[0015] To solve the above technical problems, the third technical solution provided by this application is: to provide an anti-peeping display method, which uses the above-mentioned anti-peeping component; and it includes: In response to switching to the anti-peeping mode, control the magnetic control valve to open for a first preset duration so that the magneto-controlled fluid flows from the second chamber into the first chamber, and control the movement state of the magneto-controlled fluid in the first chamber; In response to switching to the non-anti-peeping mode, control the magnetic control valve to open for a second preset duration so that the magneto-controlled fluid flows from the first chamber into the second chamber.

[0016] Among them, in response to switching to the anti-peeping mode, controlling the magnetic control valve to open for a first preset duration so that the magneto-controlled fluid flows from the second chamber into the first chamber, and controlling the movement state of the magneto-controlled fluid in the first chamber, includes: In response to switching to the anti-peeping mode, control the magnetic control valve to open for a first preset duration, control the energization sequence of multiple second electromagnetic elements, so that the magneto-controlled fluid in the second chamber reaches a preset position in the first chamber; Control the magnitude of the energization current of the second electromagnetic element so that the magneto-controlled fluid reaches the target position in the first chamber from the preset position.

[0017] Among them, the anti-peeping mode includes a full anti-peeping mode and / or a partial anti-peeping mode; Controlling the magnitude of the energization current of the second electromagnetic element so that the magneto-controlled fluid reaches the target position in the second chamber from the preset position, includes: Control the magnitude of the energization current of the second electromagnetic element multiple times, so that the magneto-controlled fluid starts from the preset position and passes through at least one transition position in sequence to reach the target position.

[0018] Among them, from the current position to the next position, includes: Synchronously increase or decrease the energization current of the second electromagnetic element at the auxiliary position, so that the magneto-controlled fluid directly reaches the next position from the current position; Among them, in the direction parallel to the anti-peeping module, the auxiliary position is located on the side of the current position and is adjacent.

[0019] Advantages of the present application: Different from the prior art, the present application provides an anti-peeping component, a display device, and an anti-peeping display method. The anti-peeping component has an anti-peeping functional area and an edge area located on the side of the anti-peeping functional area. The anti-peeping component includes an anti-peeping module, a magnetorheological fluid, and a control module. The anti-peeping module has a first chamber located in the anti-peeping functional area and a second chamber located in the edge area. The anti-peeping module includes a magnetic control valve located in the edge area. The magnetic control valve is used to selectively connect the first chamber and the second chamber. The magnetorheological fluid is at least partially disposed in the second chamber. The magnetorheological fluid is a light-shielding material. The control module is used to control the on-off state of the magnetic control valve and is also used to control the movement state of the magnetorheological fluid between the first chamber and the second chamber. Through the coordinated operation of the magnetic control valve and the control module, the magnetorheological fluid can be controlled to be located in the second chamber in the edge area in the non-anti-peeping mode, and the magnetorheological fluid can be controlled to be in the first chamber in the anti-peeping functional area in the anti-peeping mode, so as to achieve a quick switch between anti-peeping and non-anti-peeping; at the same time, by controlling the movement state of the magnetorheological fluid in the first chamber, the anti-peeping viewing angle can be adjusted and local anti-peeping can be achieved. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without any creative work, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the anti-peeping component provided by the present application; Figure 2 It is Figure 1 The partial enlarged structural diagram of A in Figure 3 It is Figure 1 The partial enlarged structural diagram of the magnetic control valve in the open state at B in Figure 4 It is Figure 1 The partial enlarged structural diagram of the magnetic control valve in the closed state at B in Figure 5 It is a schematic structural diagram of the first embodiment of the first chamber and the second chamber provided by the present application; Figure 6 It is a schematic structural diagram of the second embodiment of the first chamber and the second chamber provided by the present application; Figure 7 It is a schematic structural diagram of the third embodiment of the first chamber and the second chamber provided by the present application; Figure 8 It is a schematic structural diagram of the fourth embodiment of the first chamber and the second chamber provided by the present application; Figure 9 It is a schematic diagram of the magneto-controlled fluid in a motion state in the anti-peeping component provided by this application; Figure 10 It is a schematic diagram of the magneto-controlled fluid in another motion state in the anti-peeping component provided by this application; Figure 11 It is a schematic structural diagram of an embodiment of the display device provided by this application; Figure 12 It is a schematic flowchart of an embodiment of the anti-peeping display method provided by this application; Figure 13 It is Figure 12 A schematic flowchart of an embodiment of step S10 in Figure 14 It is a schematic structural diagram of the initial state of the magneto-controlled fluid in the display device provided by this application; Figure 15 It is Figure 13 A schematic structural diagram corresponding to an embodiment of step S11 in Figure 16 It is Figure 13 A schematic structural diagram corresponding to the first embodiment of step S12 in Figure 17 It is Figure 13 A schematic structural diagram corresponding to an embodiment where the magneto-controlled fluid reaches the transition position in step S12 in Figure 18 It is Figure 13 A schematic structural diagram corresponding to the second embodiment of step S12 in Figure 19 It is Figure 13 A schematic structural diagram corresponding to the third embodiment of step S12 in Figure 20 It is Figure 13 A schematic structural diagram corresponding to the fourth embodiment of step S12 in

[0022] Explanation of the reference numerals in the drawings: 1. Anti-peeping component; 001. Anti-peeping functional area; 002. Edge area; 10. Anti-peeping module; 101. First chamber; 102. Second chamber; 110. Magnetic control valve; 111. Base; 1110. Channel; 1120. Installation groove; 112. Elastic member; 113. Magnetophilic structure; 120. Reflective layer; 130. Frame; 131. First frame; 132. Second frame; 20. Magneto-controlled fluid; 21. Light-shielding part; 30. Control module; 31. First electromagnetic element; 32. Control circuit; 33. Second electromagnetic element; 34. Support structure; 341. First support structure; 342. Second support structure; 35. Heat-conducting layer; 100. Display device; 003. Display area; 004. Border area; 2. Light-emitting module; 201. Light-emitting unit; 3. Backplane; 301. Bottom plate; 302. Side plate; 303. Limiting part; 4. Support column; 5. Optical component; 501. Quantum dot film; 502. Diffusion sheet; 503. Prismatic sheet; 6. Display panel; 7. Middle frame; 8. Outer frame; 9. Adhesive; 005. Preset position; 006. Target position; 007. Transition position; 008. Auxiliary position; a1 / a2 / a3 / a4. Angle. Detailed implementation manners

[0023] The solutions of the embodiments of the present application will be described in detail below with reference to the accompanying drawings of the specification.

[0024] In the following description, specific details such as specific system structures, interfaces, and technologies are presented for the purpose of illustration rather than limitation, so as to understand the present application thoroughly.

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present application belong to the scope of protection of the present application.

[0026] The terms "first", "second", and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes other steps or units inherent to these processes, methods, products, or devices.

[0027] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0028] Please refer to Figures 1 to 4 , Figure 1 which is a schematic structural diagram of an embodiment of the anti-peeping component provided by this application. Figure 2 is Figure 1 a partial enlarged structural diagram of part A in Figure 3 is Figure 1 a partial enlarged structural diagram of the magnetic control valve at position B in when it is in the open state. Figure 4 is Figure 1 a partial enlarged structural diagram of the magnetic control valve at position B in when it is in the closed state.

[0029] The present application provides an anti-peeping component 1, which has an anti-peeping functional area 001 and an edge area 002 located on the side of the anti-peeping functional area 001. The anti-peeping component 1 includes an anti-peeping module 10, a magneto-rheological fluid 20, and a control module 30. The anti-peeping module 10 has a first chamber 101 located in the anti-peeping functional area 001 and a second chamber 102 located in the edge area 002. The anti-peeping module 10 includes a magnetic control valve 110 located in the edge area 002. The magnetic control valve 110 is used to selectively communicate the first chamber 101 and the second chamber 102. The magneto-rheological fluid 20 is at least partially disposed in the second chamber 102. The magneto-rheological fluid 20 is a light-shielding material. The control module 30 is used to control the on / off state of the magnetic control valve 110 and is also used to control the movement state of the magneto-rheological fluid 20 between the first chamber 101 and the second chamber 102.

[0030] Through the coordinated operation of the magnetic control valve 110 and the control module 30, the magneto-rheological fluid 20 can be controlled to be located in the second chamber 102 of the edge area 002 in the non-anti-peeping mode, and the magneto-rheological fluid 20 can be controlled to be in the first chamber 101 located in the anti-peeping functional area 001 in the anti-peeping mode, so as to achieve a quick switch between anti-peeping and non-anti-peeping; at the same time, by controlling the movement state of the magneto-rheological fluid 20 in the first chamber 101, the anti-peeping viewing angle can be adjusted and local anti-peeping can be achieved.

[0031] The movement state of the magneto-rheological fluid 20 between the first chamber 101 and the second chamber 102 includes the movement state of the magneto-rheological fluid 20 in the first chamber 101 and / or the movement state of the magneto-rheological fluid 20 in the second chamber 102.

[0032] The movement state includes the static distribution and dynamic distribution of the magneto-rheological fluid 20. For example, the magneto-rheological fluid 20 is in a static state in the initial state, the magneto-rheological fluid 20 moves back and forth between the first chamber 101 and the second chamber 102, and the magneto-rheological fluid realizes various position layouts by displacement in the first chamber 101, etc.

[0033] Specifically, the magneto-rheological fluid 20 is dispersed into a plurality of spaced light-shielding portions 21 in the first chamber 101. The magneto-rheological fluid 20 in each anti-peeping module 10 is quantitative, and the anti-peeping viewing angle is adjusted by controlling the spacing between the light-shielding portions 21 formed by the dispersion of the magneto-rheological fluid 20 and the number of the light-shielding portions 21. The smaller the spacing between the light-shielding portions 21, the smaller the anti-peeping viewing angle. The more the number of the light-shielding portions 21, the smaller the spacing between the light-shielding portions 21.

[0034] By controlling the position layout of the magneto-rheological fluid 20 in the first chamber 101, the switching of different anti-peeping viewing angles can be achieved, that is, various anti-peeping requirements can be realized. For example, local anti-peeping and full anti-peeping.

[0035] In some embodiments, the magneto-rheological fluid 20 includes magneto-rheological liquid.

[0036] Magnetorheological fluid (abbreviated as MR fluid) is a new type of fluid with controllable fluidity, presenting black to absorb light and prevent it from passing through. Magnetorheological fluid has two states. Specifically, under a weak magnetic field of about 0 - 5 mT, the magnetorheological fluid is a Newtonian fluid with low viscosity, i.e., in a liquid state. When an external magnetic field is about 100 mT, the magnetorheological fluid presents as a Bingham plastic body with high viscosity and low fluidity, i.e., in a solid state. The magnetorheological fluid can freely switch between the liquid state and the solid state under the action of a magnetic field, with low energy consumption, easy control, and rapid response (millisecond level). At the same time, when the magnetorheological fluid is in the liquid state, it can achieve various behaviors such as large deformation, smooth navigation, in-situ splitting, fusion, and jumping under the drive of a high-gradient weak magnetic field.

[0037] When switching to the non-anti-peeping mode, the magnetorheological fluid can be transformed into a solid state when it is isolated in the second chamber 102; when switching to the anti-peeping mode, the magnetorheological fluid can be transformed into a solid state after reaching the target position 006.

[0038] The anti-peeping module 10 has an incident light side and an emergent light side that are oppositely arranged along the thickness direction of the anti-peeping module 10. Light enters from the incident light side, passes through the first chamber 101, and then exits from the emergent light side.

[0039] The magnetic control valve 110 is at least arranged between the first chamber 101 and the second chamber 102 to connect the first chamber 101 and the second chamber 102 in the anti-peeping mode, so that the magneto-controlled fluid 20 in the second chamber 102 can flow into the first chamber 101; and isolate the first chamber 101 and the second chamber 102 in the non-anti-peeping mode, so that the magneto-controlled fluid 20 flowing into the second chamber 102 is restricted in the second chamber 102 to prevent the magneto-controlled fluid 20 from entering the first chamber 101 and blocking the light of the anti-peeping functional area 001.

[0040] In some embodiments, the magnetic control valve 110 includes a base 111, an elastic member 112, and a magnetophilic structure 113. The base 111 surrounds to form a channel 1110, and the channel 1110 constitutes at least a part of the second chamber 102. The magnetophilic structure 113 is located between the first chamber 101 and the second chamber 102. In the direction of the elastic force of the elastic member 112, one end of the elastic member 112 is connected to the magnetophilic structure 113, and the other end is connected inside the base 111.

[0041] When the magnetic control valve 110 is in the open state, the magnetic suction force acting on the magnetophilic structure 113 outside the magnetic control valve 110 is less than the elastic force acting on the magnetophilic structure 113 by the elastic member 112, the magnetophilic structure 113 is spaced from the base 111, and the first chamber 101 and the second chamber 102 communicate with each other; When the magnetic control valve 110 is in the closed state, the magnetic suction force acting on the magnetophilic structure 113 outside the magnetic control valve 110 is greater than the elastic force acting on the magnetophilic structure 113 by the elastic member 112. The magnetophilic structure 113 is configured to be in contact with the base 111 and at least block the port of the channel 1110, and the first chamber 101 and the second chamber 102 are isolated from each other.

[0042] In some embodiments, the base 111 is a ring-shaped structure, and the ring-shaped structure encloses a two-way channel 1110, and the two-way channel 1110 forms part of the second chamber 102. In other embodiments, the base 111 is a near-kettle-shaped structure, and the near-kettle-shaped structure encloses a one-way channel 1110, and the one-way channel 1110 is the second chamber 102, and the mouth of the near-kettle-shaped structure faces the first chamber 101. In other embodiments, the base 111 can also be other structures, which are not limited here too much and are selected according to actual needs.

[0043] The base 111 includes a transparent hard material. Exemplarily, the transparent hard material can be PMMA (polymethyl methacrylate). The transparent hard material can also be other transparent high-strength materials.

[0044] The elastic member 112 in the magnetic control valve 110 is used to support the magnetophilic structure 113 and provide elastic deformation to ensure that the magnetophilic structure 113 can displace in the direction of the elastic force in response to the change of the magnetic suction force.

[0045] Exemplarily, the elastic member 112 is a structure such as a spring or a spring piece.

[0046] In the direction of the elastic force of the elastic member 112, the projection of the magnetophilic structure 113 on the base 111 at least covers the port of the channel 1110 facing the first chamber 101, so that the magnetophilic structure 113 can be attracted by the magnetic force to block the channel 1110.

[0047] Exemplarily, the anti-peeping function area 001 is rectangular, the direction of the elastic force is the long side direction of the anti-peeping function area 001, or the direction of the elastic force is the short side direction of the anti-peeping function area 001.

[0048] In other embodiments, the direction of the elastic force can also be other directions. For example, the direction of the elastic force is the diagonal direction of the rectangular anti-peeping function area 001. The anti-peeping function area 001 can be other shapes.

[0049] The elastic member 112 is at least one.

[0050] Exemplarily, there is one elastic member 112. The projection of the elastic member 112 on the magnetophilic structure 113 is located in the middle or near the middle of the magnetophilic structure 113. Compared with connecting the elastic member 112 to the edge of the magnetophilic structure 113, it can better support the magnetophilic structure 113 and minimize the position shift of the magnetophilic structure 113 in the thickness direction of the anti-peeping module 10 due to gravity or other reasons, thereby preventing the problem that the blocking effect on the channel 1110 is poor due to the position shift when the magnetophilic structure 113 contacts the base 111.

[0051] Exemplarily, there are two elastic members 112. In the thickness direction of the anti-peeping module 10, the two elastic members 112 are respectively located on opposite sides of the channel 1110. It should be understood that when multiple elastic members 112 are arranged in parallel to share the same acting force, the deformation of a single elastic member 112 can be reduced. On the contrary, when multiple elastic members 112 are arranged in parallel to apply the acting force to the same object, the total force on the object to which the acting force is applied can be increased. By setting two elastic members 112, when the magnetic control valve 110 is in the open state, the elastic thrust acting on the magnetophilic structure 113 can be increased, so that the magnetophilic structure 113 can quickly move away from the base 111, thereby accelerating the communication between the first chamber 101 and the second chamber 102. And, compared with setting one elastic member 112, setting two elastic members 112 can reduce the position shift of the magnetophilic structure 113 in the thickness direction of the anti-peeping module 10 when the magnetic control valve 110 is in the open state, so as to better support the magnetophilic structure 113.

[0052] Exemplarily, there are four elastic members 112. The four elastic members 112 are distributed along the circumferential direction of the channel 1110 to better support the magnetophilic structure 113. By setting four elastic members 112, when the magnetic control valve 110 is in the open state, the communication between the first chamber 101 and the second chamber 102 can be realized faster.

[0053] It should be understood that compared with setting four elastic members 112, setting two elastic members 112 can reduce the magnetic attraction force on the magnetophilic structure 113 when the magnetic control valve 110 is in the closed state, thereby reducing the power consumption.

[0054] Exemplarily, the magnetophilic structure 113 can be a metal or alloy such as iron, cobalt, nickel, etc.

[0055] When the magnetic control valve 110 is in the open state, the elastic force acting on the magnetophilic structure 113 is greater than the magnetic attraction force acting on the magnetophilic structure 113. The elastic member 112 is in the natural state or the compressed state, and a part of the elastic member 112 extends out of the base 111, so that a gap is provided between the magnetophilic structure 113 and the base 111, thereby enabling the first chamber 101 and the second chamber 102 to communicate with each other. When the magnetic control valve 110 is in the open state and the elastic member 112 is in the natural state, the magnetic attraction force on the magnetophilic structure 113 can be reduced or even no magnetic attraction force needs to be applied to the magnetophilic structure 113, thereby reducing power consumption.

[0056] When the magnetic control valve 110 is in the closed state, the magnetophilic structure 113 is attracted by the magnetic force and compresses the elastic member 112, and the entire elastic member 112 is disposed within the base 111, so that the magnetophilic structure 113 is in contact with the base 111, and at least the port of the channel 1110 facing the first chamber 101 is blocked, thereby isolating the first chamber 101 and the second chamber 102.

[0057] In some embodiments, one side of the base 111 facing the first chamber 101 has a mounting groove 1120, and at least a part of the elastic member 112 is disposed within the mounting groove 1120. When the magnetic control valve 110 is in the closed state, the magnetophilic structure 113 blocks the port of the channel 1110 facing the first chamber 101 and the notch of the mounting groove 1120.

[0058] When the magnetic control valve 110 is in the open state, a part of the elastic member 112 is disposed within the mounting groove 1120, and the other part extends out of the mounting groove 1120. When the magnetic control valve 110 is in the closed state, the elastic member 112 is entirely disposed within the mounting groove 1120 in the compressed state.

[0059] The notch of the mounting groove 1120 faces the first chamber 101.

[0060] Exemplarily, in the thickness direction of the anti-peeping module 10, the cross-section of the mounting groove 1120 is rectangular. In other embodiments, the mounting groove 1120 may be of other shapes.

[0061] Exemplarily, the mounting groove 1120 communicates with the channel 1110, that is, the magnetophilic structure 113 must be able to block the port of the channel 1110 facing the first chamber 101 and the notch of the mounting groove 1120 when the magnetic control valve 110 is in the closed state to isolate the first chamber 101 and the second chamber 102.

[0062] Exemplarily, the installation groove 1120 and the channel 1110 are arranged at intervals, that is, the magnetophilic structure 113 can selectively block the port of the channel 1110 facing the first chamber 101 when the magnetic control valve 110 is in the closed state. In the elastic force direction of the elastic member 112, the projection of the magnetophilic structure 113 on the base 111 covering the port of the channel 1110 facing the first chamber 101 and the notch of the installation groove 1120 can simplify the structural design of the magnetic control valve 110.

[0063] Exemplarily, in the elastic force direction of the elastic member 112, the projected area of the magnetophilic structure 113 on the base 111 is larger than the sum of the port area of the channel 1110 facing the first chamber 101 and the notch area of the installation groove 1120, so as to better isolate the first chamber 101 and the second chamber 102.

[0064] Please refer to Figures 1 to 8 , Figure 5 which is a schematic structural diagram of the first embodiment of the first chamber and the second chamber provided by the present application, Figure 6 which is a schematic structural diagram of the second embodiment of the first chamber and the second chamber provided by the present application, Figure 7 which is a schematic structural diagram of the third embodiment of the first chamber and the second chamber provided by the present application, Figure 8 which is a schematic structural diagram of the fourth embodiment of the first chamber and the second chamber provided by the present application.

[0065] In some embodiments, the magnetic control valves 110 are provided in one-to-one correspondence with the second chambers 102. Among them, there is one second chamber 102, and it is located on one side of the first chamber 101 along the elastic force direction; or, there are multiple second chambers 102, and the multiple second chambers 102 are arranged side by side and are located on one side of the first chamber 101 along the elastic force direction; or, there are multiple second chambers 102, and the multiple second chambers 102 are respectively located on opposite sides of the first chamber 101 along the elastic force direction.

[0066] The number of the magnetic control valves 110 is equal to the number of the second chambers 102.

[0067] When there are multiple second chambers 102 on one side of the first chamber 101 along the elastic force direction, the multiple second chambers 102 are arranged side by side along a preset direction. The preset direction is perpendicular to the elastic force direction and perpendicular to the thickness direction of the anti-peeping module 10.

[0068] The first chamber 101 corresponds to at least one second chamber 102. The first chamber 101 and the corresponding second chamber 102 are selectively communicated.

[0069] Exemplarily, as Figure 5 shown, the first chamber 101 corresponds to one second chamber 102, and the second chamber 102 is located on one side of the first chamber 101 along the elastic force direction.

[0070] Exemplarily, the first chamber 101 corresponds to two second chambers 102, and the two second chambers 102 are located on one side of the first chamber 101 along the elastic force direction (see Figure 6 ); or, the two second chambers 102 are respectively located on opposite sides of the first chamber 101 along the elastic force direction (see Figure 7 ).

[0071] Exemplarily, the first chamber 101 corresponds to at least three second chambers 102, and all the second chambers 102 are located on one side of the first chamber 101 along the elastic force direction; or, a part of the second chambers 102 are located on one side of the first chamber 101 along the elastic force direction, and another part of the second chambers 102 are located on the other side of the first chamber 101 along the elastic force direction (see Figure 8 ).

[0072] When the first chamber 101 is multiple and / or the second chamber 102 is multiple, the distribution state of the magneto - rheological fluid 20 in the anti - peeping functional area 001 can be more precisely controlled, so that the anti - peeping viewing angle can be adjusted more accurately according to the anti - peeping requirements.

[0073] In some embodiments, the anti - peeping module 10 further includes a reflective layer 120, and the reflective layer 120 includes: a reflective coating provided on the surface of the magnetophilic structure 113 of the magnetic control valve 110 close to the first chamber 101; and / or, a reflective coating provided on the light - incident side surface of the anti - peeping module 10 and located in the edge area 002.

[0074] Setting a reflective coating on the surface of the magnetophilic structure 113 of the magnetic control valve 110 close to the first chamber 101 can improve the utilization rate of the light incident on the first chamber 101, thereby enhancing the display effect.

[0075] The reflective coating provided on the light - incident side surface of the anti - peeping module 10 and located in the edge area 002 can reflect the light irradiated to the edge area 002 of the light - incident side, and further improve the utilization rate of the light incident on the light - incident side of the anti - peeping module 10.

[0076] Specifically, a reflective coating is provided on the surface of the magnetophilic structure 113 close to the light - incident side of the anti - peeping module 10, and a reflective coating is provided on the surface of the base 111 close to the light - incident side of the anti - peeping module 10.

[0077] There is no limitation on the material of the reflective layer 120 here, and it is selected according to actual needs.

[0078] In some embodiments, the anti-peeping module 10 further includes a frame 130, which has transparency and insulation. The frame 130 includes a first frame 131 and a second frame 132. The first frame 131 is used to form a first chamber 101, and the second frame 132 is used to form a second chamber 102. The magnetic control valve 110 is disposed between the first frame 131 and the second frame 132; or, the base 111 of the magnetic control valve 110 encloses to form the second chamber 102, and the frame 130 is used to form the first chamber 101; or, the magnetic control valve 110 is disposed inside the frame 130, and divides the space enclosed by the frame 130 into a first chamber 101 and a second chamber 102.

[0079] The frame 130 includes a transparent homogeneous material. Exemplarily, the transparent homogeneous material may be PMMA. The transparent homogeneous material may also be other transparent materials.

[0080] Exemplarily, the anti-peeping module 10 is a rectangular structure. In the thickness direction of the anti-peeping module 10, the cross-sections of the first chamber 101 and the second chamber 102 are both rectangular.

[0081] Exemplarily, the anti-peeping module 10 is an L-shaped structure or a U-shaped structure. In the thickness direction of the anti-peeping module 10, the cross-section of the first chamber 101 is rectangular, and the cross-section of the second chamber 102 is L-shaped.

[0082] Exemplarily, the frame 130 includes a first frame 131 and a second frame 132. The first frame 131 is used to form a first chamber 101, and the second frame 132 is used to form a second chamber 102. The magnetic control valve 110 is disposed between the first frame 131 and the second frame 132. Specifically, the first frame 131 and the base 111 of the magnetic control valve 110 cooperate to enclose and form the first chamber 101, and the second frame 132 and the base 111 of the magnetic control valve 110 cooperate to enclose and form the second chamber 102.

[0083] Exemplarily, the base 111 of the magnetic control valve 110 encloses to form the second chamber 102, and the frame 130 is used to form the first chamber 101. The frame 130 and the base 111 of the magnetic control valve 110 cooperate to enclose and form the first chamber 101.

[0084] In some embodiments, the control module 30 includes a control circuit 32 and a first electromagnetic element 31. The control circuit 32 controls the switching state of the magnetic control valve 110 by controlling the energization state of the first electromagnetic element 31. The first electromagnetic element 31 is disposed on the side of the corresponding magnetic control valve 110 away from the first chamber 101, and is at least partially opposite to the magnetophilic structure 113.

[0085] There are no restrictions on the structure and position of the control circuit 32 here, and it is selected according to actual needs.

[0086] The energized state includes the magnitude of the energizing current, the direction of the current, the energizing time, and whether it is energized, etc.

[0087] By controlling the magnitude of the energizing current of the first electromagnetic element 31, dynamic release or attraction of the magnetophilic structure 113 is achieved.

[0088] Specifically, in response to the magnetic force generated by the first electromagnetic element 31 (i.e., the magnetic suction force acting on the elastic member 112 in the above description) being greater than the elastic force of the elastic member 112, the magnetophilic structure 113 is displaced in the direction approaching the base 111 until the magnetophilic structure 113 is in contact with the base 111 and blocks the channel 1110, and the magnetic control valve 110 is in the closed state.

[0089] In response to the magnetic force generated by the first electromagnetic element 31 being less than the elastic force of the elastic member 112, the magnetophilic structure 113 is bounced off by the elastic member 112 and displaced in the direction away from the base 111, and the magnetic control valve 110 is in the open state.

[0090] In the direction of the elastic force, the first electromagnetic element 31 and the magnetophilic structure 113 are at least partially oppositely arranged, which can enable the first electromagnetic element 31 to better attract the magnetophilic structure 113 and can also reduce power consumption. It can be understood that in the direction of the elastic force, the first electromagnetic element 31 and the magnetophilic structure 113 are at least partially overlapped.

[0091] Exemplarily, in the thickness direction of the anti-peeping module 10, the cross-section of the first electromagnetic element 31 is larger than the cross-section of the magnetophilic structure 113. It can be understood that in the direction of the elastic force, the projection of the magnetophilic structure 113 on the first electromagnetic element 31 is located within the first electromagnetic element 31 and is spaced from at least part of the edge of the first electromagnetic element 31.

[0092] In some embodiments, the magnetic control valve 110 can cooperate with the first electromagnetic element 31 to enclose and form a second chamber 102.

[0093] In some embodiments, the first electromagnetic element 31 is a permanent magnet wound with a coil.

[0094] Specifically, when starting the anti-peeping mode, the coil of the first electromagnetic element 31 is energized and the direction and magnitude of the current are controlled so that the magnetic field direction generated by the current in the coil is opposite to and equal in intensity to the magnetic field direction of the permanent magnet itself to cancel the magnetic field of the permanent magnet. At this time, the elastic force of the elastic member 112 acting on the magnetophilic structure 113 is greater than the magnetic suction force of the first electromagnetic element 31 acting on the magnetophilic structure 113, the magnetophilic structure 113 is bounced off by the elastic member 112, and the magnetic control valve 110 is in the open state.

[0095] When the non - anti - peeping mode is activated, the coil of the first electromagnetic element 31 is powered off. The magnetic suction force of the permanent magnet acting on the magnetophilic structure 113 is greater than the elastic force of the elastic member 112 acting on the magnetophilic structure 113. At this time, the magnetophilic structure 113 is in close contact with the base 111 to block the second chamber 102, and the magnetic control valve 110 is in the closed state.

[0096] In the non - anti - peeping mode, there is no need to energize the coil in the first electromagnetic element 31, which can reduce power consumption.

[0097] In some other embodiments, the first electromagnetic element 31 is an electromagnet.

[0098] Exemplarily, the electromagnet is composed of a coil and an iron core (or without an iron core).

[0099] Specifically, when the anti - peeping mode is activated, the coil in the first electromagnetic element 31 is energized and the current magnitude is controlled so that the elastic force of the elastic member 112 acting on the magnetophilic structure 113 is greater than the magnetic suction force of the first electromagnetic element 31 acting on the magnetophilic structure 113. The magnetophilic structure 113 is pushed away by the elastic member 112, and the magnetic control valve 110 is in the open state.

[0100] When the non - anti - peeping mode is activated, the coil in the first electromagnetic element 31 is energized and the current magnitude is controlled so that the elastic force of the elastic member 112 acting on the magnetophilic structure 113 is less than the magnetic suction force of the first electromagnetic element 31 acting on the magnetophilic structure 113. At this time, the magnetophilic structure 113 is in close contact with the base 111 to block the second chamber 102, and the magnetic control valve 110 is in the closed state.

[0101] It should be understood that compared with the embodiment in which the first electromagnetic element 31 is an electromagnet, when the first electromagnetic element 31 is a permanent magnet wound with a coil, using the magnetic force of the permanent magnet itself to attract the magnetophilic structure 113 can reduce the energization time of the coil, which is beneficial to reducing power consumption and heat.

[0102] In some embodiments, the control module 30 further includes a plurality of second electromagnetic elements 33 arranged at intervals. The control circuit 32 controls the movement state of the magneto - rheological fluid 20 between the first chamber 101 and the second chamber 102 by controlling the energization state of the second electromagnetic elements 33. The second electromagnetic elements 33 are arranged on the light - incident side of the anti - peeping module 10, or the second electromagnetic elements 33 are arranged on the light - emitting side of the anti - peeping module 10.

[0103] The plurality of second electromagnetic elements 33 work independently so that the energization states of the plurality of second electromagnetic elements 33 can be different, thereby controlling the movement state of the magneto - rheological fluid 20 in the first chamber 101.

[0104] Some of the second electromagnetic elements 33 are arranged in the edge area 002, and some of the second electromagnetic elements 33 are arranged in the anti - peeping functional area 001.

[0105] In some embodiments, in the elastic force direction, each first chamber 101 corresponds to at least 8 second electromagnetic elements 33. Each second chamber 102 corresponds to at least one first electromagnetic element 31.

[0106] The second electromagnetic element 33 is used to control the motion state of the magneto - rheological fluid 20 in the corresponding first chamber 101 or the corresponding second chamber 102.

[0107] Exemplarily, the second electromagnetic element 33 disposed in the edge area 002 is used to control the magneto - rheological fluid 20 to flow from the first chamber 101 into the second chamber 102. In the non - anti - peeping mode, the magnetic control valve 110 is first opened and then closed. When switching to the non - anti - peeping mode, first, by controlling the energization state of the first electromagnetic element 31, the magnetic control valve 110 is made to be in the open state, and then the energization state (e.g., the energization time and the energization magnitude) of the second electromagnetic element 33 located in the edge area 002 is controlled so that the magneto - rheological current moves from the first chamber 101 to the second chamber 102 entirely. Then, by controlling the energization state of the first electromagnetic element 31, the magnetic control valve 110 is made to be in the closed state, isolating the magneto - rheological fluid 20 entirely in the second chamber 102 to reduce the display impact on the anti - peeping functional area 001.

[0108] The second electromagnetic element 33 disposed in the anti - peeping functional area 001 is used to control the motion state of the magneto - rheological fluid 20 in the first chamber 101. In the anti - peeping mode, the magnetic control valve 110 is first opened and then closed. When switching to the anti - peeping mode, first, by controlling the energization state of the first electromagnetic element 31, the magnetic control valve 110 is made to be in the open state, and then the energization state of the second electromagnetic element 33 located in the anti - peeping functional area 001 is controlled so that the magneto - rheological fluid 20 moves from the second chamber 102 to the first chamber 101. Then, by controlling the energization state of the first electromagnetic element 31, the magnetic control valve 110 is made to be in the closed state, isolating the magneto - rheological fluid 20 entirely in the first chamber 101 to reduce the working time of the first electromagnetic element 31 and reduce power consumption.

[0109] It should be understood that when switching to the anti - peeping mode, after the magneto - rheological current moves from the second chamber 102 to the first chamber 101, the magnetic control valve 110 may not be closed.

[0110] In some embodiments, the second electromagnetic element 33 is a soft magnetic body wound with a coil.

[0111] Exemplarily, the soft magnetic body includes materials such as iron - silicon alloy. The soft magnetic body can be processed by mechanical processing and other methods to obtain a shape that meets the expected geometric tolerance.

[0112] Specifically, in a soft magnetic body wound with a coil, before the coil is energized, the soft magnetic body has no magnetism. After the coil is energized, the originally non-magnetic soft magnetic body is magnetized and thus has magnetism. The direction and intensity of magnetization depend on the direction and magnitude of the current passing through the coil.

[0113] Please refer to Figures 1 to 10 , Figure 9 which is a schematic diagram showing a motion state of the magneto-controlled fluid in the anti-peeping component provided by the present application, Figure 10 and which is a schematic diagram showing another motion state of the magneto-controlled fluid in the anti-peeping component provided by the present application.

[0114] Exemplarily, when switching to the anti-peeping mode, the coil in the second electromagnetic element 33 is energized to control the magneto-controlled fluid 20 to flow from the second chamber 102 into the first chamber 101 and to control the motion state of the magneto-controlled fluid 20 in the first chamber 101. Specifically, in the direction of the magneto-controlled fluid 20 from the second chamber 102 to the first chamber 101, a timed current is sequentially applied to the coil in the second electromagnetic element 33 according to the anti-peeping mode, so that the magnetic field moves from the second chamber 102 to the first chamber 101, thereby generating a high-gradient weak magnetic field to attract the magneto-controlled fluid 20 in the second chamber 102 to flow into the preset position 005 in the first chamber 101 (see Figure 9 ). After the magneto-controlled fluid 20 moves to the expected position in the first chamber 101, the currents in the second electromagnetic elements 33 corresponding to the opposite sides of the magneto-controlled fluid 20 in the direction of the elastic force are synchronously increased, so that the magneto-controlled fluid 20 is attracted by the magnetic fields at both ends and is evenly distributed. Then, a high-gradient weak magnetic field is used to make the evenly distributed magneto-controlled fluid 20 be attracted and move to the next preset position 005 (see Figure 10 ). Similarly, by synchronously reducing the currents in the second electromagnetic elements 33 corresponding to the opposite sides of the magneto-controlled fluid 20 in the direction of the elastic force, the aggregation of the magneto-controlled fluid 20 can be realized. By repeating the above control, the continuous movement, splitting, refinement, and aggregation and recombination of the magneto-controlled fluid 20 in the second chamber 102 can be realized, and thus various anti-peeping requirements can be adapted.

[0115] When switching to the non-anti-peeping mode, according to the operation of switching to the anti-peeping mode, the reverse operation is performed to restore to the initial state. The initial state is that the magneto-controlled fluid 20 is isolated in the second chamber 102. Specifically, after the coil in the second electromagnetic element 33 is energized to control the magneto-controlled fluid 20 to flow from the first chamber 101 into the second chamber 102, the second electromagnetic element 33 is de-energized, which can reduce the working duration of the coil in the non-anti-peeping mode, and thus reduce the power consumption.

[0116] Soft magnets have low coercivity, are easy to magnetize and demagnetize, and can be applied to application scenarios with high-frequency switching, that is, the magnetic field can be quickly changed, thereby accelerating the motion state of the magnetorheological fluid 20 in the second chamber 102 and a chamber, and then can be applied to the rapid switching of different anti-peeping requirements. Secondly, the magnetic hysteresis loop of the soft magnet is narrow and the magnetic hysteresis loss is small, which is beneficial to improving energy efficiency. In addition, soft magnets are generally manufactured using thin-film or powder metallurgy techniques, which can effectively reduce eddy current losses and are suitable for high-frequency applications.

[0117] In other embodiments, the second electromagnetic element 33 may be an electromagnet.

[0118] It should be understood that selecting a soft magnet wound with a coil as the second electromagnetic element 33 can not only be applicable to the rapid switching of different anti-peeping requirements, but also reduce energy consumption.

[0119] In some embodiments, the control module 30 further includes a support structure 34 and a heat-conducting layer 35. The support structure 34 and the heat-conducting layer 35 are mutually covered to form an accommodation space, and the second electromagnetic element 33 is disposed in the accommodation space.

[0120] Exemplarily, the support structure 34 includes a first support structure 341 and a second support structure 342. The second support structure 342 is disposed at the end of the first support structure 341 on the side close to the heat-conducting layer 35. The first support structure 341 and the second support structure 342 jointly enclose a U-shaped structure.

[0121] The support structure 34 includes a rigid insulating material. Exemplarily, the rigid insulating material is a material such as PEKK.

[0122] In the thickness direction of the anti-peeping module 10, the first support structure 341 and the second support structure 342 are oppositely disposed.

[0123] The heat-conducting layer 35 includes a non-magnetic heat-conducting material. Exemplarily, the non-magnetic heat-conducting material is heat-conducting silica gel.

[0124] Exemplarily, the second electromagnetic element 33 is disposed on one surface of the heat-conducting layer 35 so that the heat-conducting layer 35 can dissipate heat from the second electromagnetic element 33.

[0125] Please refer to Figures 1 to 11 , Figure 11 which is a schematic structural diagram of an embodiment of the display device provided by the present application.

[0126] The present application provides a display device 100. The display device 100 includes at least one anti-peeping component 1. The anti-peeping component 1 is the above-mentioned anti-peeping component 1.

[0127] The display device 100 has a display area 003 and a border area 004.

[0128] The anti-peeping functional area 001 of the anti-peeping component 1 is located within the display area 003, and the edge area 002 of the anti-peeping component 1 is located within the border area 004.

[0129] Exemplarily, there is one anti-peeping component 1. In the thickness direction of the anti-peeping component 1 (i.e., the thickness direction of the anti-peeping module 10), the anti-peeping functional area 001 is overlapped with the display area 003.

[0130] Exemplarily, there are multiple anti-peeping components 1, and the multiple anti-peeping components 1 are arranged side by side along a preset direction. The multiple anti-peeping components 1 work independently, and various anti-peeping requirements can be realized, for example, multiple local anti-peeping viewing angles. Specifically, the display area 003 is divided into multiple partitions, some partitions can be anti-peeping displayed, and some partitions are normally displayed. The anti-peeping viewing angles between the anti-peeping displayed partitions can be the same or different.

[0131] The setting of the multiple anti-peeping components 1 enables the abnormal anti-peeping component 1 to be quickly replaced when a certain anti-peeping component 1 is abnormal, without replacing all the anti-peeping components 1, which can save materials.

[0132] In some embodiments, there are at least five anti-peeping components 1 to better realize local dynamic anti-peeping.

[0133] The display device 100 further includes a light-emitting module 2. The light-emitting module 2 is located on the light-incident side of the anti-peeping module 10 and is used to provide incident light for the anti-peeping module 10.

[0134] Exemplarily, the display device 100 is an OLED (Organic Light-Emitting Diode), an LED (Light Emitting Diode), a direct-lit LCD (Liquid Crystal Display), or a side-lit LCD, and corresponding flat screens and curved screens.

[0135] In some embodiments, the second electromagnetic element 33 is located on the light-emitting side of the anti-peeping module 10, and the projection of the second electromagnetic element 33 on the light-emitting module 2 is located between the light-emitting units 201 in the light-emitting module 2 to reduce the occlusion of light.

[0136] In some other embodiments, the second electromagnetic element 33 is located on the light-incident side of the anti-peeping module 10. The setting position of the second electromagnetic element 33 can be selected according to the position layout of the light-emitting module 2 and the second electromagnetic element 33. For example, if the second electromagnetic element 33 is located on the light path where the light emitted from the light-emitting module 2 is incident on the anti-peeping module 10, the second electromagnetic element 33 is set corresponding to the non-pixel area in the display area 003 of the display device 100 to avoid occluding the light in the pixel area of the display area 003 and affecting the anti-peeping display effect. The pixel area is used to display images.

[0137] Exemplarily, taking the direct - type LCD as the display device 100 as an example for illustration.

[0138] Specifically, the display device 100 further includes a backplane 3, support columns 4, and an optical component 5. The heat - conducting layer 35 is disposed on the bottom plate 301 of the backplane 3, and the light - emitting module 2 is located on the surface of the support structure 34 away from the heat - conducting layer 35. The support columns 4 are located between the light - emitting module 2 and the optical component 5.

[0139] The support columns 4 are used to strengthen the stability of the internal structure of the display device 100 and prevent deformation or damage caused by external pressure.

[0140] The optical component 5 includes various optical film layers, which are mainly used to improve light efficiency, uniformity, and display quality.

[0141] Exemplarily, the optical component 5 includes a quantum - dot film 501, a diffusion sheet 502, and a prism sheet 503 stacked in sequence. Here, there are no excessive restrictions on the function and specific structure of the optical component 5, and it is selected according to actual needs.

[0142] The anti - peeping module 10 is located on the side of the optical component 5 away from the second electromagnetic element 33.

[0143] In some embodiments, in the plane direction parallel to the light - emitting module 2, the second electromagnetic element 33 and the light - emitting unit 201 in the light - emitting module 2 are spaced apart to reduce heat concentration, thereby extending the lifespan of the display device 100.

[0144] The display device 100 further includes a display panel 6, a middle frame 7, and an outer frame 8. The display panel 6 is located on the side of the anti - peeping module 10 away from the second electromagnetic element 33.

[0145] The middle frame 7 is located between the display panel 6 and the outer frame 8 and plays a role of connection and support. It not only provides physical support for the display panel 6 but also helps to fix the internal components.

[0146] The outer frame 8 is the outermost part of the display device 100, mainly used to protect the internal components from the influence of the external environment, such as collision, dust, and moisture. At the same time, it also provides structural stability for the entire device.

[0147] The anti - peeping module 10 covers the side of the optical component 5 away from the support column and abuts against the limiting portion 303 of the middle side plate 302 of the backplane 3 for easy installation. The limiting portion 303 is located on the side of the side plate 302 facing the support column 4 to support the optical component 5. Specifically, the second chamber 102 is an L - shaped structure.

[0148] The display device 100 further includes an adhesive 9, and the adhesive 9 is used to bond the display panel 6 and the middle frame 7.

[0149] Please refer to Figures 1 to 16 , Figure 12 which is a schematic flowchart of an embodiment of the anti-peeping display method provided by this application, Figure 13 and Figure 12 is a schematic flowchart of an embodiment of step S10 in Figure 14 which is a schematic structural diagram of the initial state of the magnetorheological fluid in the display device provided by this application, Figure 15 and Figure 13 is a schematic structural diagram corresponding to step S11 in Figure 16 and Figure 13 is a schematic structural diagram corresponding to the first embodiment of step S12 in

[0150] This application provides an anti-peeping display method. The anti-peeping display method uses the above anti-peeping component 1. The anti-peeping display method is applied to the display device 100.

[0151] The anti-peeping display method specifically includes: S10: In response to switching to the anti-peeping mode, control the magnetic control valve 110 to open for a first preset duration to enable the magnetorheological fluid 20 to flow from the second chamber 102 into the first chamber 101, and control the motion state of the magnetorheological fluid 20 in the first chamber 101.

[0152] Specifically, in response to switching to the anti-peeping mode, control the magnetic control valve 110 to open for a first preset duration to enable the magnetorheological fluid 20 to flow into the first chamber 101. After all the magnetorheological fluid 20 has flowed into the first chamber 101, close the magnetic control valve 110 to isolate the magnetorheological fluid 20 in the second chamber 102. Then, control the motion state of the magnetorheological fluid 20 in the first chamber 101 according to the anti-peeping requirements.

[0153] There is no limitation on the first preset duration here, and it can be selected according to actual needs.

[0154] In some embodiments, step S10 includes: S11: In response to switching to the anti-peeping mode, control the magnetic control valve 110 to open for a first preset duration, and control the energization sequence of a plurality of second electromagnetic elements 33 to enable the magnetorheological fluid 20 in the second chamber 102 to reach the preset position 005 in the first chamber 101.

[0155] Control the magnetic control valve 110 to open to connect the first chamber 101 and the second chamber 102. In the direction of the magnetorheological fluid 20 flowing from the second chamber 102 to the first chamber 101, apply a timed current to the coils in the second electromagnetic elements 33 in sequence according to the anti-peeping mode, so that the magnetic field moves from the second chamber 102 to the first chamber 101, thereby generating a high-gradient weak magnetic field to attract the magnetorheological fluid 20 in the second chamber 102 to flow into the preset position 005 in the first chamber 101.

[0156] The preset position 005 can be selected according to the anti-peeping requirement and the structure of the anti-peeping module 10. The number of the preset positions 005 is at least one.

[0157] Exemplarily, there is one preset position 005, and each anti-peeping module 10 includes a first chamber 101 and a second chamber 102. The preset position 005 can be any position within the first chamber 101 and is selected according to the anti-peeping requirement.

[0158] Exemplarily, there are two preset positions 005, and each anti-peeping module 10 includes a first chamber 101 and two second chambers 102. The two second chambers 102 are located on the opposite sides of the first chamber 101 along the elastic force direction. The two preset positions 005 can be symmetrically arranged or asymmetrically arranged.

[0159] S12: Control the magnitude of the energizing current of the second electromagnetic element 33 to make the magnetorheological fluid 20 reach the target position 006 in the first chamber 101 from the preset position 005.

[0160] After the magnetorheological fluid 20 moves to the expected position in the first chamber 101, synchronously increase the current in the second electromagnetic elements 33 corresponding to the opposite sides of the magnetorheological fluid 20 along the elastic force direction, so that the magnetorheological fluid 20 is attracted by the farther magnetic fields at both ends and is evenly divided, and then use a high-gradient weak magnetic field to make the evenly divided magnetorheological fluid 20 be attracted and move to the next position. Similarly, by synchronously decreasing the current in the second electromagnetic elements 33 corresponding to the opposite sides of the magnetorheological fluid 20 along the elastic force direction, the aggregation of the magnetorheological fluid 20 can be realized. Repeat the above control until the target position 006 is reached, and the continuous movement, splitting and refinement, and aggregation and recombination of the magnetorheological fluid 20 in the first chamber 101 can be realized, so as to adapt to various anti-peeping requirements.

[0161] In some embodiments, the anti-peeping mode includes a full anti-peeping mode and / or a partial anti-peeping mode. Step S12: Control the magnitude of the energizing current of the second electromagnetic element 33 to make the magnetorheological fluid 20 reach the target position 006 in the first chamber 101 from the preset position 005, including: controlling the magnitude of the energizing current of the second electromagnetic element 33 multiple times to make the magnetorheological fluid 20 start from the preset position 005 and pass through at least one transition position 007 in sequence to reach the target position 006.

[0162] During the process of the magnetorheological fluid 20 reaching the target position 006 from the preset position 005, there will be multiple position transformations.

[0163] It should be understood that the magnetorheological fluid 20 can also directly reach the target position 006 from the preset position 005.

[0164] Moving from the current position to the next position includes: synchronously increasing or decreasing the energizing current of the second electromagnetic element 33 at the auxiliary position 008, so that the magnetorheological fluid 20 directly reaches the next position from the current position; wherein, in the direction parallel to the anti-peeping module 10, the auxiliary position 008 is located on the side of the current position and adjacent thereto.

[0165] The current position is the position where the magnetorheological fluid 20 pauses in the first chamber 101 at a certain moment. The current position can be the preset position 005 or the transition position 007. The current position can be multiple or single. For example, if the magnetorheological fluid 20 forms a light-shielding portion 21, then the current position is single; and for another example, if the magnetorheological fluid 20 is dispersed to form multiple light-shielding portions 21, then the current position is multiple.

[0166] The next position can be the transition position 007 or the target position 006. The next position can be multiple or single.

[0167] During the process of splitting or aggregating the magnetorheological fluid, at the current moment, the number of the light-shielding portions 21 is equal to the number of the current positions. For example, at the current moment, the magnetorheological fluid 20 is located at the preset position 005, the number of the light-shielding portions 21 included in the magnetorheological fluid 20 is equal to the number of the preset positions 005, and the magnetorheological fluid 20 directly moves from the preset position 005 to the first transition position 007, then the current position refers to the preset position 005, and the next position refers to the first transition position 007.

[0168] By synchronously increasing the energizing current of the second electromagnetic element 33 at the auxiliary position 008, the magnetorheological fluid 20 at the current position can be evenly divided.

[0169] By synchronously decreasing the energizing current of the second electromagnetic element 33 at the auxiliary position 008, the magnetorheological fluid 20 at the current position can be aggregated.

[0170] Synchronously increasing or decreasing the energizing current of the second electromagnetic element 33 at the auxiliary position 008 to realize the position transformation of the magnetorheological fluid 20, thereby different anti-peeping viewing angles can be realized.

[0171] When switching to the anti-peeping mode, the control logics of the first electromagnetic element 31 and the second electromagnetic element 33 are specifically as follows: At the transition moment from the non-anti-peeping mode to the anti-peeping mode, the magnetorheological fluid 20 is isolated in the second chamber 102, and both the first electromagnetic element 31 and the second electromagnetic element 33 stop working; First, control the first electromagnetic element 31 to work to control the opening of the magneto-control valve 110; then control the second electromagnetic element 33 to work to control the magnetorheological fluid 20 to flow from the second chamber 102 into the first chamber 101; After all of the magneto - controlled fluid 20 has flowed into the first chamber 101, then control the first electromagnetic element 31 to stop working. Subsequently, continue to control the first electromagnetic element 31 to work to control the magneto - control valve 110 to close, isolating the magneto - rheological fluid within the first chamber 101. Then continue to control the second electromagnetic element 33 to work to control the motion state of the magneto - controlled fluid 20 within the second chamber 102.

[0172] Hereinafter, an example will be given where each anti - peeping module 10 includes a first chamber 101 and two second chambers 102 located at opposite ends of the first chamber 101, the number of second electromagnetic elements 33 is 10, the magneto - controlled fluid 20 is a magneto - rheological fluid, and the first electromagnetic element 31 is a permanent magnet wound with a coil.

[0173] Please refer to Figures 1 to 20 , Figure 17 is Figure 13 the schematic structural diagram corresponding to one implementation manner in which the magneto - controlled fluid reaches the transition position in step S12 in Figure 18 is Figure 13 the schematic structural diagram corresponding to the second implementation manner of step S12 in Figure 19 is Figure 13 the schematic structural diagram corresponding to the third implementation manner of step S12 in Figure 20 is Figure 13 the schematic structural diagram corresponding to the fourth implementation manner of step S12 in

[0174] In the first implementation manner: the number of transition positions 007 is zero.

[0175] When switching to the full anti - peeping mode, the first electromagnetic element 31 is energized, causing the magnetic force of the permanent magnet to be temporarily cancelled out. The compressive force of the elastic member 112 > the magnetic suction force, so the magnetophilic structure 113 is pushed away by the elastic member 112, and the magneto - control valve 110 is opened. At this time, the magneto - rheological fluid becomes liquid due to the loss of high - magnetic - field constraint and can flow from the second chamber 102 into the first chamber 101. When all of the magneto - rheological fluid has flowed out of the second chamber 102, the first electromagnetic element 31 is de - energized. At this time, the compressive force of the elastic member 112 < the magnetic suction force, the magnetophilic structure 113 and the base 111 are in close contact and block the second chamber 102, and the magneto - control valve 110 is closed. Then, program - timed power is supplied to the second electromagnetic element 33 correspondingly. Specifically, first, the second electromagnetic elements 33 located at both ends of the anti - peeping module 10 along the direction of the elastic force are energized, and then the second electromagnetic elements 33 in the middle are energized in sequence, thereby generating a high - gradient weak magnetic field to attract the magneto - rheological fluid in the two end second chambers 102 to move towards the middle.

[0176] After the magnetorheological fluid moves to the preset position 005 (at this time, there are two light-shielding parts 21), synchronously increase the energizing current of the second electromagnetic elements 33 on both sides of the magnetorheological fluid along the elastic force direction (that is, the second electromagnetic elements 33 at the auxiliary position 008) to enhance the magnetic field, so that the magnetorheological fluid is attracted by the relatively far magnetic fields at both ends and is evenly divided (at this time, there are four light-shielding parts 21). Then use a high-gradient weak magnetic field to make the evenly divided magnetorheological fluid be attracted and move to the target position 006.

[0177] After the magnetorheological fluid moves to the target position 006, apply a larger current to the second electromagnetic element 33 to make the soft magnetic body obtain a high magnetic field, so that the magnetorheological fluid turns into a solid state, and actions such as the moving device will not affect the anti-peeping display effect. The anti-peeping viewing angle at this time is a1.

[0178] If it is not necessary to turn on the anti-peeping mode, perform in the reverse direction according to the previous steps to restore to the initial state. In this way, in the non-anti-peeping mode, the display effect is not affected, and a better experience is obtained.

[0179] In the second embodiment: There is 1 transition position 007.

[0180] When switching to the full anti-peeping mode, after moving the magnetorheological fluid to the preset position 005 (at this time, there are two light-shielding molds), synchronously increase the energizing current of the second electromagnetic elements 33 on both sides of the magnetorheological fluid along the elastic force direction to enhance the magnetic field, so that the magnetorheological fluid is attracted by the relatively far magnetic fields at both ends and is evenly divided (at this time, there are four light-shielding parts 21). Then use a high-gradient weak magnetic field to make the evenly divided magnetorheological fluid be attracted and move to the transition position 007.

[0181] After the magnetorheological fluid moves to the transition position 007, synchronously increase the energizing current of the second electromagnetic elements 33 on both sides of the magnetorheological fluid along the elastic force direction to enhance the magnetic field, so that the magnetorheological fluid is attracted by the relatively far magnetic fields at both ends and is evenly divided again (at this time, there are eight light-shielding parts 21). Then use a high-gradient weak magnetic field to make the evenly divided magnetorheological fluid be attracted and move to the target position 006.

[0182] After the magnetorheological fluid moves to the target position 006, apply a larger current to the second electromagnetic element 33 to make the soft magnetic body obtain a high magnetic field, so that the magnetorheological fluid turns into a solid state, and actions such as the moving device will not affect the anti-peeping display effect. The anti-peeping viewing angle at this time is a2, and a1 > a2.

[0183] It should be understood that when switching to the full anti-peeping mode, the magnetorheological fluid starts from the initial position and can reach the target position 006 through multiple transition positions 007. Specifically, the magnetorheological fluid can be evenly divided or aggregated multiple times to achieve various changes in the anti-peeping viewing angle, which is more intelligent and practical.

[0184] In the third embodiment: the number of transition positions 007 is zero.

[0185] Switch to the local anti-peeping mode, determine the local anti-peeping area. The preset position 005 and the target position 006 are both within the local anti-peeping area. The magnetorheological fluids in the two second chambers 102 flow into the first chamber 101 for anti-peeping display. The magnetorheological fluid is sequentially moved from the second chamber 102 to the preset position 005 and then to the target position 006. At this time, the anti-peeping viewing angle is a3, and the non-anti-peeping viewing angle is a4. a4 > a1 > a2 > a3. The anti-peeping viewing angle can be further reduced, while the non-anti-peeping viewing angle is the same as the conventional viewing angle of Mini LED (mini light-emitting diode), with a maximum of approximately 140°.

[0186] In the fourth embodiment: the number of transition positions 007 is zero.

[0187] Switch to the local anti-peeping mode, determine the local anti-peeping area. The preset position 005 and the target position 006 are both within the local anti-peeping area. The magnetorheological fluid in the second chamber 102 on the side close to the local anti-peeping area flows into the first chamber 101 for anti-peeping display, and the magnetorheological fluid in the second chamber 102 on the side far from the local anti-peeping area continues to be isolated in the second chamber 102. The magnetorheological fluid is sequentially moved from the second chamber 102 to the preset position 005 and then to the target position 006. At this time, the anti-peeping viewing angle is a2, and the non-anti-peeping viewing angle is a4.

[0188] The local anti-peeping area is any area within the anti-peeping functional area 001.

[0189] In the third embodiment, the magnetorheological fluids in the two second chambers 102 cooperate. The magnetorheological fluid is dispersed to form four light-shielding parts 21. In the fourth embodiment, the magnetorheological fluid in one second chamber 102 works. The total amount of the magnetorheological fluid in the first chamber 101 decreases, making the width of the four equally dispersed light-shielding parts 21 smaller and the distance between the light-shielding parts 21 larger, resulting in a larger anti-peeping viewing angle.

[0190] It should be understood that whether in the full anti-peeping mode or the local anti-peeping mode, the anti-peeping viewing angle can be adjusted by adjusting the total amount of the magnetorheological fluid moving in the first chamber 101. The total amount of the magnetorheological fluid moving in the first chamber 101 can be determined according to the number of connected second chambers 102.

[0191] In other embodiments, when switching to the local anti-peeping mode, starting from the initial position, the magnetorheological fluid can also reach the target position 006 through multiple transition positions 007. Specifically, the magnetorheological fluid can be evenly divided or aggregated multiple times to achieve various changes in the anti-peeping viewing angle, which is more intelligent and practical.

[0192] S20: In response to switching to the non-anti-peeping mode, control the magnetic control valve 110 to open for a second preset duration so that the magneto-controlled fluid 20 flows from the first chamber 101 into the second chamber 102.

[0193] Specifically, in response to switching to the non-anti-peeping mode, control the magnetic control valve 110 to open for a second preset duration. The first chamber 101 communicates with the second chamber 102, and the magneto-controlled fluid 20 flows entirely from the first chamber 101 into the second chamber 102. Then, control the magnetic control valve 110 to close to isolate the magneto-controlled fluid 20 within the second chamber 102.

[0194] There is no limitation on the second preset duration here, and it is selected according to actual requirements.

[0195] When switching to the non-anti-peeping mode, the control logics of the first electromagnetic element 31 and the second electromagnetic element 33 are as follows: At the transition moment from the anti-peeping mode to the non-anti-peeping mode, the magneto-controlled fluid 20 is isolated within the first chamber 101, the first electromagnetic element 31 stops working, and the second electromagnetic element 33 continues to work; First, control the first electromagnetic element 31 to work to control the magnetic control valve 110 to open; then, control the second electromagnetic element 33 to work to control the magneto-controlled fluid 20 to flow from the first chamber 101 into the second chamber 102; After the magneto-controlled fluid 20 has all flowed into the second chamber 102, then control the first electromagnetic element 31 to close, and then control the second electromagnetic element 33 to close.

[0196] In some embodiments, the anti-peeping display control method further includes: during the restart of the anti-peeping component stage, repeating the control logics when switching to the non-anti-peeping mode.

[0197] During the restart of the anti-peeping component stage, repeating the control logics when switching to the non-anti-peeping mode can clear the states left by the previous abnormal shutdown (for example, a sudden power interruption), ensure starting a new operation from a known good state, and thus guarantee the optimization of the display effect.

[0198] In the above embodiments, the descriptions of each embodiment have their own focuses. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0199] The above are only the embodiments of the present application, and do not limit the patent protection scope of the present application. Any equivalent structure or equivalent process transformation made using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present application by the same token.

Claims

1. An anti-peeping component having an anti-peeping functional area and an edge area located on the side of the anti-peeping functional area; characterized in that, Comprising: An anti-peeping module having a first chamber located in the anti-peeping functional area and a second chamber located in the edge area; the anti-peeping module includes a magnetic control valve located in the edge area; the magnetic control valve is used to selectively communicate the first chamber and the second chamber; Magneto-controlled fluid, at least partially disposed in the second chamber; the magneto-controlled fluid is a light-shielding material; A control module for controlling the on-off state of the magnetic control valve and also for controlling the movement state of the magneto-controlled fluid between the first chamber and the second chamber.

2. The anti-peeping component according to claim 1, wherein The magnetic control valve includes a base, an elastic member and a magnetophilic structure; The base encloses to form a channel, and the channel constitutes at least a part of the second chamber; the magnetophilic structure is located between the first chamber and the second chamber; in the direction of the elastic force of the elastic member, one end of the elastic member is connected to the magnetophilic structure, and the other end is connected inside the base; When the magnetic control valve is in the open state, the magnetic suction force acting on the magnetophilic structure outside the magnetic control valve is less than the elastic force acting on the magnetophilic structure by the elastic member, the magnetophilic structure is spaced apart from the base, and the first chamber and the second chamber communicate with each other; When the magnetic control valve is in the closed state, the magnetic suction force acting on the magnetophilic structure outside the magnetic control valve is greater than the elastic force acting on the magnetophilic structure by the elastic member, the magnetophilic structure is configured to be in contact with the base and at least block the port of the channel, and the first chamber and the second chamber are isolated from each other.

3. The anti-peeping component according to claim 2, wherein One side of the base facing the first chamber has a mounting groove, and at least a part of the elastic member is disposed in the mounting groove; when the magnetic control valve is in the closed state, the magnetophilic structure blocks the port of the channel facing the first chamber and the notch of the mounting groove.

4. The anti-peeping component according to claim 2, wherein, The magnetic control valves are provided in one-to-one correspondence with the second chambers; Wherein, there is one second chamber, and it is located on one side of the first chamber along the direction of the elastic force; Or, there are multiple second chambers, and the multiple second chambers are arranged side by side and are located on one side of the first chamber along the direction of the elastic force; Or, there are multiple second chambers, and the multiple second chambers are respectively located on opposite sides of the first chamber along the direction of the elastic force.

5. The anti-peeping component according to claim 1, wherein The anti-peeping module further includes a reflective layer, and the reflective layer includes: A reflective coating provided on the surface of the magnetophilic structure of the magnetic control valve close to the first chamber; And / or, A reflective coating provided on the light incident side surface of the anti-peeping module and located in the edge area.

6. The anti-peeping component according to claim 1, wherein The anti-peeping module further includes a frame, and the frame has transparency and insulation; Wherein, the frame includes a first frame and a second frame; the first frame is used to form the first chamber, and the second frame is used to form the second chamber; the magnetic control valve is disposed between the first frame and the second frame; Or, the base of the magnetic control valve encloses to form the second chamber, and the frame is used to form the first chamber; Or, the magnetic control valve is disposed inside the frame, and the space enclosed by the frame is divided into the first chamber and the second chamber.

7. The anti-peeping component according to claim 2, wherein The control module includes a control circuit and a first electromagnetic element. The control circuit controls the on / off state of the magnetic control valve by controlling the energization state of the first electromagnetic element. The first electromagnetic element is disposed on a side of the magnetic control valve away from the first chamber and is at least partially opposite to the magnetophilic structure.

8. The anti-peeping component according to claim 7, wherein The control module further includes a plurality of second electromagnetic elements arranged at intervals. The control circuit controls the movement state of the magneto-controlled fluid between the first chamber and the second chamber by controlling the energization state of the second electromagnetic elements. The second electromagnetic element is disposed on the light incident side of the anti-peeping module, or the second electromagnetic element is disposed on the light exiting side of the anti-peeping module.

9. The anti-peeping component according to claim 8, wherein The control module further includes a support structure and a heat-conducting layer. The support structure and the heat-conducting layer are mutually covered to form a receiving space, and the second electromagnetic element is disposed in the receiving space.

10. A display device, characterized in that, It includes at least one anti-peeping component, and the anti-peeping component is the anti-peeping component according to any one of claims 1 to 9.

11. An anti-peeping display method, using the anti-peeping component described in any one of claims 1 to 9; characterized in that, It includes: In response to switching to the anti-peeping mode, controlling the magnetic control valve to open for a first preset duration so that the magneto-controlled fluid flows from the second chamber into the first chamber, and controlling the movement state of the magneto-controlled fluid in the first chamber. In response to switching to the non-anti-peeping mode, controlling the magnetic control valve to open for a second preset duration so that the magneto-controlled fluid flows from the first chamber into the second chamber.

12. The anti-peeping display method according to claim 11, wherein The step of, in response to switching to the anti-peeping mode, controlling the magnetic control valve to open for a first preset duration so that the magneto-controlled fluid flows from the second chamber into the first chamber, and controlling the movement state of the magneto-controlled fluid in the first chamber includes: In response to switching to the anti-peeping mode, controlling the magnetic control valve to open for a first preset duration, and controlling the energization sequence of the plurality of second electromagnetic elements so that the magneto-controlled fluid in the second chamber reaches a preset position in the first chamber. Controlling the magnitude of the energization current of the second electromagnetic element so that the magneto-controlled fluid reaches a target position in the first chamber from the preset position.

13. The anti-peeping display method according to claim 12, characterized in that The anti-peeping mode includes a full anti-peeping mode and / or a partial anti-peeping mode. The step of controlling the magnitude of the energization current of the second electromagnetic element so that the magneto-controlled fluid reaches a target position in the first chamber from the preset position includes: Controlling the magnitude of the energization current of the second electromagnetic element multiple times so that the magneto-controlled fluid starts from the preset position and sequentially passes through at least one transition position to reach the target position.

14. The anti-peeping display method according to claim 12 or 13, characterized in that, Moving from the current position to the next position includes: Synchronously increasing or decreasing the energization current of the second electromagnetic element at the auxiliary position so that the magneto-controlled fluid directly reaches the next position from the current position. Wherein, in a direction parallel to the anti-peeping module, the auxiliary position is located adjacent to the side of the current position.

Images