Interactive panel

Abstract

The present application relates to an interactive panel. The interactive panel comprises a first frame, a first light filtering strip, glass and a glass pressing block. A mounting cavity is formed in the first frame, and an opening in communication with the mounting cavity is formed on a side of the first frame close to a display region of the interactive panel. The first light filtering strip is disposed inside the mounting cavity. A supporting portion is formed at the end of the first light filtering strip close to the display region of the interactive panel, the supporting portion being disposed at the opening, and exposed out of the mounting cavity by means of the opening. The glass is placed on the supporting portion. One end of the glass pressing block is connected to the first frame, and the other end thereof of the glass pressing block abuts against the side of the glass facing away from the supporting portion. One side surface of the glass pressing block abuts against, and performs position-limiting on, a portion of the first light filtering strip located at the opening, so as to prevent the first light filtering strip from separating from the mounting cavity along the opening. The first light filtering strip is clamped by means of side walls of the first frame defining the mounting cavity, so as to be accommodated in the mounting cavity. Alternatively, the side walls of the first frame defining the mounting cavity cooperate with the glass pressing block to clamp the first light filtering strip, so as to accommodate the first light filtering strip in the mounting cavity.

Description

interactive tablet Technical Field

[0001] The present application relates to the technical field of electronic equipment, for example, to an interactive tablet. Background Art

[0002] Interactive tablets integrate multiple functions of projectors, electronic whiteboards, screens, speakers, televisions, and video conferencing terminals. They are widely used in education and teaching, corporate meetings, commercial displays, and other fields, and can effectively improve the communication environment and enhance group communication efficiency.

[0003] Traditional interactive tablets generally include a display module and a frame surrounding the outside of the display module, as well as a touch circuit board for infrared detection and a filter strip for filtering infrared light. The frame can be a rolled frame. A rolled frame generally refers to a frame formed by a rolling process using iron materials. The overall structure is roughly C-shaped, that is, an opening is formed on the side of the rolled frame. When the interactive tablet is assembled, the filter strip will be built into the rolled frame through the opening, and the touch circuit board will be built into the internal space of the filter strip. Then the glass in the display module is placed on the filter strip and then pressed and fixed by corresponding glass pressing blocks.

[0004] However, the filter strips of conventional interactive tablets with rolled frames are not firmly assembled, which affects the accuracy of the detection module on the touch circuit board in detecting the user's touch action and may also cause the glass on the filter strip to fall off.

[0005] Summary of the Invention

[0006] Based on this, for traditional interactive tablets with rolled frames, the filter strip is not assembled stably, which affects the detection accuracy of the detection module on the touch circuit board for the user's touch action, and also causes the glass on the filter strip to jump out. An interactive tablet is provided, which can reduce the risk of the touch circuit board's detection accuracy of the user's touch action being affected by the unstable assembly of the filter strip. In addition, when the filter strip is relatively firmly accommodated in the mounting cavity, the risk of the glass on the filter strip jumping out can also be reduced.

[0007] The technical solution is as follows:

[0008] An interactive tablet comprises a first frame, a first filter strip, glass, and a glass pressing block. The first frame has an interior formed with a mounting cavity, and an opening is formed on a side of the first frame proximate to a display area of ​​the interactive tablet, the opening being in communication with the mounting cavity. The first filter strip is embedded in the mounting cavity, and a bearing portion is formed on one end of the first filter strip proximate to the display area, the bearing portion being disposed at the opening and exposed through the opening. The glass is resting on the bearing portion. One end of the glass pressing block is connected to the first frame, and the other end abuts against a side of the glass facing away from the bearing portion. A side surface of the glass pressing block abuts against a portion of the first filter strip located at the opening to prevent the first filter strip from escaping the mounting cavity along the opening. The first filter strip is clamped by sidewalls of the first frame forming the mounting cavity to be accommodated in the mounting cavity, or the first filter strip is clamped by the sidewalls of the first frame forming the mounting cavity and the glass pressing block to be accommodated in the mounting cavity.

[0009] In one embodiment, the first frame includes a front panel body, an intermediate connecting panel body and a back panel body, the front panel body is connected to the back panel body through the intermediate connecting panel body and is surrounded to form the installation cavity, the front panel body and the back panel body are relatively spaced apart and form the opening, wherein the angle formed between the front panel body and the intermediate connecting panel body is a, wherein 80°≤a≤90°.

[0010] In one embodiment, 87°≤a≤90°.

[0011] In one embodiment, one end of the back panel body close to the display area is bent toward the front panel body to form a step portion, and the step portion includes a step plane portion facing the first filter strip and a step vertical portion connected to the step plane portion and arranged at an angle, the glass block is connected to the step plane portion, and the step plane portion and the step vertical portion are perpendicular; or the step plane portion is offset relative to the step vertical portion in a direction close to the first filter strip and the angle formed with the step vertical portion is b, wherein 90°<b≤100°.

[0012] In one embodiment, 90°<b≤93°.

[0013] In one embodiment, the first frame is provided with an audio and video area for accommodating an audio and video module in the installation cavity, the first filter strip is formed with a clearance notch for accommodating the audio and video module at a position corresponding to the audio and video area, and a limiting protrusion is formed on one side of the first filter strip facing the step portion;

[0014] The interactive tablet further includes a limiting member, which is provided through a portion of the stepped plane portion corresponding to the audio and video area, and in the height direction of the first frame, the limiting member is closer to the avoidance gap than the limiting protrusion, and the orthographic projection of the limiting member toward the first filter strip at least partially falls on the limiting protrusion, so that the limiting member and the limiting protrusion cooperate to limit the height direction of the first frame.

[0015] In one embodiment, the limiting protrusion extends along the length direction of the first frame, and the limiting protrusion contacts and seals the side of the step portion facing the first filter strip.

[0016] In one embodiment, one of the glass pressing block and the stepped plane portion is provided with a first positioning protrusion, and the other is provided with a first positioning hole, and the glass pressing block is inserted into the first positioning protrusion and the first positioning hole to be positioned and matched with the stepped plane portion; and / or

[0017] The glass pressing block and the stepped plane portion are further fixedly matched by fasteners.

[0018] In one embodiment, the interactive tablet further includes foam, which is connected to the outer wall of the first filter strip. The first filter strip is squeezed and fitted with the inner wall of the first frame located in the mounting cavity through the foam to be embedded in the mounting cavity.

[0019] In one embodiment, the number of the foams is at least two, and all the foams are arranged at intervals along the length direction of the first filter strip.

[0020] In one embodiment, the first frame is a rolled frame.

[0021] In one embodiment, the number of the first frames and the first filter strips are both three, the three first frames are respectively an upper frame and two side frames, the three first filter strips are respectively two side filter strips and an upper filter strip, the side filter strips are correspondingly accommodated in the mounting cavity of the side frames, and the upper filter strip is correspondingly accommodated in the mounting cavity of the upper frame;

[0022] The two ends of the upper frame are respectively welded to the two side frames or connected via an intermediate connecting piece to form a U-shaped frame structure.

[0023] In one embodiment, a receiving cavity is provided inside each of the first filter bars, and the interactive flat panel further includes three first touch circuit boards, namely an upper circuit board and two side circuit boards. The side circuit boards are correspondingly received in the receiving cavities of the side filter bars, and the upper circuit board is correspondingly received in the receiving cavity of the upper filter bar.

[0024] In one embodiment, a limiting bracket is provided at the connecting corner of the upper frame and the side frame, and the limiting bracket includes a limiting body and a first locking body connected to each other, the limiting body is provided between the upper frame and the side frame, and the first locking body is connected to the upper frame;

[0025] The limiting body includes a first limiting surface facing the upper filter bar and a second limiting surface facing the side filter bar. In the length direction of the upper frame, the first limiting surface is limitedly matched with the end of the upper filter bar and the end of the upper circuit board. In the length direction of the side frame, the second limiting surface is limitedly matched with the end of the side circuit board.

[0026] In one embodiment, the upper filter bar and the side filter bar are in contact with each other, and in the length direction of the side frame, the orthographic projection of the upper filter bar at least partially falls on the side filter bar, so that in the length direction of the side frame, the upper filter bar can limit the side filter bar.

[0027] In one embodiment, one of the first locking body and the upper frame is provided with a second positioning protrusion, and the other is provided with a second positioning hole, and the first locking body and the upper frame are plugged into each other through the second positioning protrusion and the second positioning hole to achieve positioning fit; and / or

[0028] The first locking body and the upper frame are further fixedly matched by fasteners.

[0029] In one embodiment, the limiting bracket further includes a second locking body, the second locking body is connected to the side wall of the limiting body facing away from the upper frame, and the second locking body is connected to the side frame.

[0030] In one embodiment, a support body is further provided on a side of the position-limiting bracket facing the back panel of the interactive tablet, and the support body is used to support the back panel of the interactive tablet.

[0031] In one embodiment, the interactive tablet also includes a second frame and two connecting corners, the second frame is a bottom frame, and a connecting corner is correspondingly provided at each end of the bottom frame and the two side frames, and the bottom frame is connected to the end of the side frame away from the upper frame through the corresponding connecting corner.

[0032] In one embodiment, a clamping groove is formed at one end of the connecting corner close to the side frame, and the connecting corner is clamped on the back panel side of the side frame facing the interactive flat panel through the clamping groove, and the other opposite end of the connecting corner is inserted into the internal cavity of the bottom frame.

[0033] In one embodiment, a first mounting hole and a second mounting hole are formed on a side of the bottom frame facing the back panel of the interactive tablet, the first mounting hole and the second mounting hole are spaced apart along the width direction of the bottom frame, and the first mounting hole is closer to the display area than the second mounting hole;

[0034] The portion of the connecting corner that is used to extend into the internal cavity of the bottom frame is formed with a mounting surface, and the mounting surface is provided with a third mounting hole and a mounting boss that protrudes away from the mounting surface relative to the third mounting hole, and the mounting boss corresponds to the first mounting hole and is configured to be connected by a fastener; the third mounting hole corresponds to the second mounting hole and is configured to be connected by a fastener.

[0035] In one embodiment, the side frame is bent at one end close to the bottom frame to form a bent portion, the bent portion is spliced ​​with the bottom frame, and a reinforcement body is provided on the side of the bent portion facing the bottom frame. The reinforcement body extends into the internal cavity of the bottom frame and is connected to the bottom frame.

[0036] In the interactive flat panel, the first filter bar is positioned within the mounting cavity through the opening, and a glass pressure block is disposed on the supporting portion. The glass pressure block presses the glass to secure it to the filter bar. The side surface of the glass pressure block abuts the portion of the first filter bar located at the opening, thereby preventing the first filter bar from detaching along the opening. In one embodiment, to enhance the secure clamping of the filter bar, the sidewalls of the first frame forming the mounting cavity themselves form a clamping structure for clamping the first filter bar, thereby retaining the first filter bar within the mounting cavity. Alternatively, the glass pressure block and the sidewalls of the first frame forming the mounting cavity cooperate to form a clamping structure for clamping the first filter bar. This enhances the secure installation of the first filter bar within the mounting cavity, thereby reducing the risk of the touch circuit board's accuracy in detecting user touch actions being affected by unstable filter bar assembly. Furthermore, when the filter bar is relatively securely positioned within the mounting cavity, the risk of the glass on the filter bar becoming dislodged is also reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic diagram of the structure of an interactive tablet;

[0038] Figure 2 is an exploded schematic diagram of the interactive tablet;

[0039] FIG3 is a schematic diagram of a state where glass is placed on a supporting portion;

[0040] Figure 4 is a cross-sectional view of the interactive flat panel;

[0041] FIG5 is a schematic cross-sectional view of a first frame in one embodiment;

[0042] FIG6 is a schematic cross-sectional view of a first frame in another embodiment;

[0043] FIG7 is a schematic cross-sectional view of a first frame in one embodiment;

[0044] FIG8 is a schematic cross-sectional view of a first frame in another embodiment;

[0045] FIG9 is a structural schematic diagram of a glass pressing block from one perspective;

[0046] FIG10 is a structural schematic diagram of a glass pressing block from another perspective;

[0047] FIG11 is an assembly diagram of the first frame and the first filter strip;

[0048] FIG12 is an enlarged schematic diagram of point M in FIG11;

[0049] FIG13 is a schematic structural diagram of a first filter strip in one embodiment;

[0050] FIG14 is an enlarged schematic diagram of S in FIG13 ;

[0051] FIG15 is a schematic structural diagram of three first frames after assembly;

[0052] FIG16 is a schematic diagram of the frame structure of the interactive tablet;

[0053] FIG17 is a schematic diagram of the side frame and the bottom frame assembled by connecting the corners;

[0054] Figure 18 is a schematic structural diagram of the connection corner;

[0055] FIG19 is a cross-sectional view of the first frame and the first filter strip after assembly;

[0056] FIG20 is an enlarged schematic diagram of N in FIG15 ;

[0057] FIG21 is a structural entity diagram of the limiting bracket from a front perspective;

[0058] FIG22 is a schematic diagram of the limiting bracket from a rear perspective;

[0059] FIG23 is a partially enlarged schematic diagram of an interactive tablet in one embodiment;

[0060] Figure 24 is an enlarged schematic diagram of point R in Figure 11;

[0061] FIG25 is a cross-sectional view of the interactive tablet from another perspective;

[0062] FIG26 is an enlarged schematic diagram of P in FIG16 ;

[0063] Figure 27 is a schematic diagram of the assembly of the side frame and the bottom frame;

[0064] FIG28 is a schematic diagram of the peripheral frame of the interactive tablet;

[0065] FIG29 is an enlarged schematic diagram of O in FIG28;

[0066] FIG30 is an enlarged schematic diagram of T in FIG1 .

[0067] Figure numerals: 10, interactive flat panel; 110, first frame; 110a, upper frame; 110b, side frame; 1102, mounting cavity; 1104, opening; 1106, audio and video area; 112, front panel; 114, intermediate connecting plate; 116, back panel; 1162, step portion; 11622, step plane portion; 11624, step vertical portion; 11626, first positioning hole; 11628, second positioning hole; 118, bending portion; 1182, reinforcement; 120, second frame; 120a, bottom frame; 126, first mounting hole; 12 8. Second mounting hole; 210. First filter strip; 210a. Upper filter strip; 210b. Side filter strip; 212. Carrying portion; 214. Position-limiting protrusion; 216. Avoidance notch; 218. Accommodating cavity; 220. Second filter strip; 300. Glass; 400. Glass block; 410. First positioning protrusion; 500. Foam; 600. Position-limiting bracket; 610. Position-limiting body; 612. First position-limiting surface; 614. Second limiting surface; 620, first locking body; 622, second positioning protrusion; 630, second locking body; 640, supporting body; 700, first touch circuit board; 700a, upper circuit board; 700b, side circuit board; 800, second touch circuit board; 900, connecting corner; 910, clamping groove; 920, mounting surface; 922, third mounting hole; 924, mounting boss; 926, third limiting surface; 928, fourth limiting surface; 1000, audio and video module; 2000, back panel; 3000, limiting member; 4000, screw assembly hole. DETAILED DESCRIPTION

[0068] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0069] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0071] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0072] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0073] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0074] Interactive tablets integrate multiple functions of projectors, electronic whiteboards, screens, speakers, televisions, and video conferencing terminals. They are widely used in education and teaching, corporate meetings, commercial displays, and other fields, and can effectively improve the communication environment and enhance group communication efficiency.

[0075] An interactive tablet generally consists of a display module and a frame surrounding the display module. The frame houses a touch detection component, which includes a touch circuit board and infrared transmitters and receivers mounted on the touch circuit board. An infrared transmitter is mounted on the touch circuit board within one of the two opposing frames, while an infrared receiver is mounted on the touch circuit board within the other frame. These infrared transmitters and receivers form an infrared detection network on the interactive tablet, translating user touch actions into touch coordinate locations and responding to user actions. To filter light from the infrared transmitter and receiver, the interactive tablet also features filter strips on the frame to remove stray light.

[0076] The frames in traditional interactive flat panels are mostly made of aluminum alloy, which is expensive. In order to reduce the cost of frames, rolled frames are used instead of traditional aluminum alloy profile frames. Rolled frames generally refer to frames formed by iron materials through a rolling process. An opening is formed on the side of the rolled frame. When the interactive flat panel is assembled, the filter strip is built into the rolled frame through the opening, and the touch circuit board is built into the internal space of the filter strip. Then the glass in the display module is placed on the filter strip and fixed with corresponding glass pressure blocks.

[0077] Because the filter strip contains a touch circuit board, and the glass is directly mounted on it, the inventors have discovered through research and analysis that unstable filter strip assembly can affect the accuracy of the detection module on the touch circuit board in detecting user touch actions. Furthermore, unstable filter strip assembly can also create a risk of the glass on top of the strip becoming detached. Furthermore, since rolled frames typically have large openings on their sides, the unique structural characteristics of rolled frames make it necessary to consider these issues during filter strip assembly.

[0078] To address the aforementioned issues, some interactive flat panels typically apply glue to the filter strip surface when assembling it, securing the strip to the inside of the rolled frame. However, in actual use, the glue can fall off or become unstable and unreliable. This insecure assembly of the filter strip can also affect the accuracy of the touchscreen's detection module for user touch actions and can even cause the glass attached to the filter strip to become detached. To increase the adhesive strength of the filter strip, the amount of glue used must be increased, but this also carries the risk of overflow and contamination of other components, such as the glass. Furthermore, using glue to secure the filter strip makes disassembly and replacement difficult and can easily damage the filter strip during disassembly.

[0079] In addition, in addition to using glue to fix the filter strip, some interactive flat panels will set a pressing screw on the top of the frame or the top of the glass block when assembling the filter strip. The screw passes through the frame or the glass block from above and extends into the inside of the rolled frame to press the filter strip, and then the filter strip is limited by the glass block on the side, thereby achieving the assembly of the filter strip. However, although this assembly method can fix the filter strip inside the rolled frame, if the pressing screw is too long during assembly, it will interfere with the filter strip, deform the top of the filter strip during assembly, and even damage the touch circuit board. Therefore, this assembly is more difficult and there is a risk of damaging the filter strip and the touch circuit board inside it; if the pressing screw is too short, it will not be able to press the filter strip. At this time, the filter strip will still be loose. Similarly, because the filter strip is not assembled firmly, it will affect the detection accuracy of the detection module on the touch circuit board to the user's touch action, and it will also cause the glass on the filter strip to jump off.

[0080] Based on this, referring to Figures 1 to 3 , the inventors, after a series of studies, have proposed an interactive tablet 10. This interactive tablet 10 incorporates a first filter bar 210 within a mounting cavity 1102 formed within a first frame 110. The first filter bar 210 is provided with a supporting portion 212 for supporting a glass 300. The glass 300 rests on the supporting portion 212, and is then pressed against the glass 300 by a glass pressure block 400. The glass pressure block 400 presses against the first filter bar 210 from the side, thereby preventing the first filter bar 210 from being dislodged from the opening 1104. The first filter bar 210 is either held within the mounting cavity 1102 by the sidewalls of the first frame 110 forming the mounting cavity 1102, or held within the mounting cavity 1102 by the sidewalls of the first frame 110 forming the mounting cavity 1102 and the glass pressure block 400. In this way, the first filter strip 210 can be relatively firmly housed in the mounting cavity 1102 by being clamped by the sidewalls of the first frame 110 used to form the mounting cavity 1102, or by being clamped by the sidewalls of the first frame 110 used to form the mounting cavity 1102 and the glass pressing block 400. This reduces the risk of the touch circuit board's accuracy in detecting user touch actions being affected by unstable assembly of the first filter strip 210. Furthermore, when the first filter strip 210 is relatively firmly housed in the mounting cavity 1102, the risk of the glass 300 on the first filter strip 210 being detached can also be reduced.

[0081] It should be noted that the interactive tablet 10 involved in this application can be an electronic device with functions such as writing, annotation, painting, multimedia entertainment and online conferencing. The interactive tablet 10 can integrate multiple technologies such as human-computer interaction, flat panel display, multimedia information processing and network transmission, and can be applied to scenarios such as office, teaching, graphic and text interactive demonstrations, etc.

[0082] The structure of the interactive tablet 10 is described below with reference to an embodiment.

[0083] Figure 1 is a schematic diagram of the structure of the interactive tablet 10, Figure 2 is an exploded schematic diagram of the interactive tablet 10, Figure 3 is a schematic diagram of the glass 300 mounted on the supporting portion 212, and Figure 4 is a cross-sectional view of the interactive tablet 10. Referring to Figures 1 to 4, the interactive tablet 10 includes a first frame 110, a first filter strip 210, the glass 300, and a glass pressing block 400. The first frame 110 can be a rolled frame, such as a rolled iron frame. A mounting cavity 1102 is formed within the first frame 110. An opening 1104 communicating with the mounting cavity 1102 is formed on the side of the first frame 110 adjacent to the display area of ​​the interactive tablet 10. The mounting cavity 1102 and the opening 1104 can be formed during the roll-forming process of the iron frame. The display area can be understood as the area of ​​the interactive tablet 10 that accommodates the display module or the area formed after the frame of the interactive tablet 10 is formed, such as area A in Figure 3.

[0084] The first filter bar 210 is embedded in the mounting cavity 1102. A supporting portion 212 is formed at one end of the first filter bar 210, near the display area. The supporting portion 212 is positioned at and exposed through the opening 1104. The first filter bar 210 can be made of transparent polycarbonate (PC) through injection molding. The glass 300 is placed on the supporting portion 212. A glass pressing block 400 has one end connected to the first frame 110 and the other end pressed against the side of the glass 300 facing away from the supporting portion 212. The side of the glass pressing block 400 abuts against the portion of the first filter bar 210 located at the opening 1104, preventing the first filter bar 210 from escaping the mounting cavity 1102 along the opening 1104.

[0085] 3 , the supporting portion 212 is a supporting surface, and the glass pressing block 400 is made of plastic by injection molding. During installation, although the glass pressing block 400 directly contacts the supporting portion 212 , the glass pressing block 400 will not scratch the glass 300 . Therefore, there is no need to attach a buffer component, such as buffer foam, between the glass pressing block 400 and the glass 300 .

[0086] 3 and 4 , the first filter strip 210 is clamped by the sidewalls of the mounting cavity 1102 formed by the first frame 110 to be accommodated in the mounting cavity 1102 ; alternatively, the first filter strip 210 is clamped by the sidewalls of the mounting cavity 1102 formed by the first frame 110 and the glass pressing block 400 to be accommodated in the mounting cavity 1102 .

[0087] It is understood that in one of the aforementioned embodiments, the first filter strip 210 is clamped by the side walls of the first frame 110 used to form the mounting cavity 1102 so as to be accommodated in the mounting cavity 1102. This can be understood as follows: the side walls of the first frame 110 used to form the mounting cavity 1102 themselves form a clamping structure, and the glass block 400 only abuts and limits the first filter strip 210 at the side, thereby achieving the purpose of accommodating the first filter strip 210 in the mounting cavity 1102.

[0088] In the aforementioned alternative embodiment, the first filter bar 210 is clamped by the first frame 110, which forms the sidewalls of the mounting cavity 1102, and the glass block 400 so as to be accommodated in the mounting cavity 1102. This can be understood as follows: the side surfaces of the glass block 400 abut against the first filter bar 210, and the clamping structure formed by the first frame 110 itself, together clamp the first filter bar 210 so as to be accommodated in the mounting cavity 1102. Alternatively, the sidewalls of the mounting cavity 110 110 and the glass block 400 cooperate to form a clamping structure, and the first filter bar 210 is clamped by the clamping structure so as to be accommodated in the mounting cavity 1102.

[0089] FIG5 is a schematic cross-sectional view of a first frame 110 in one embodiment, and FIG6 is a schematic cross-sectional view of the first frame 110 in another embodiment. Referring to FIG3 , FIG5 and FIG6 , in some embodiments, the first frame 110 includes a front panel 112, an intermediate connecting plate 114 and a rear panel 116. The front panel 112 is connected to the rear panel 116 via the intermediate connecting plate 114 and encloses a mounting cavity 1102. The front panel 112 and the rear panel 116 are spaced relative to each other and form an opening 1104. An angle a is formed between the front panel 112 and the intermediate connecting plate 114, wherein 80°≤a≤90°. In one embodiment, a can be 80°, 81°, 82°, 85°, 87°, 88°, 89° or 90°.

[0090] In one embodiment, the angle formed between the front panel 112 and the intermediate connecting plate 114 is less than 90°, that is, 87°≤a<90°. In this way, the intermediate connecting plate 114 and the front panel 112 can be relatively offset by a certain angle. For example, as shown in Figures 5 and 6, the front panel 112 is offset toward the intermediate connecting plate 114 by a certain angle. In this way, a certain clamping structure can be formed between the front panel 112 and the intermediate connecting plate 114, or a certain clamping structure can be formed between the front panel 112, the intermediate connecting plate 114 and the back panel 116. The first filter strip 210 is clamped by the clamping structure, thereby improving the stability of the clamping of the first filter strip 210. In addition, when the angle formed between the front panel 112 and the middle connecting panel 114 is less than 90°, the back panel 116 is also closer to the front panel 112. The glass pressing block 400 can be pressed more firmly against the glass 300 during assembly, reducing the risk of the glass 300 jumping off.

[0091] In addition, when 87°≤a<90°, the assembly of the first filter strip 210 will not be affected by the angle formed between the front plate body 112 and the middle connecting plate body 114 being too small.

[0092] 5 and 6 , one end of the back panel body 116 close to the display area is bent toward the front panel body 112 to form a step portion 1162. Referring to FIG. 5 , in this embodiment, the back panel body 116 as a whole forms a "Z"-shaped structure. Compared with the first frame 110 in FIG. 5 , the first frame 110 in FIG. 6 is designed as a narrow frame as a whole, and the connection between the back panel body 116 and the middle connecting plate body 114 is narrowed as a whole.

[0093] The step portion 1162 provides a mounting platform for the glass block 400. One end of the glass block 400 is connected to the step portion 1162. Continuing with Figures 5 and 6, in one embodiment, the step portion 1162 includes a step planar portion 11622 facing the first filter strip 210 and a step vertical portion 11624 connected to the step planar portion 11622 and arranged at an angle thereto. The glass block 400 is connected to the step planar portion 11622, and the step planar portion 11622 and the step vertical portion 11624 are perpendicularly disposed.

[0094] The first frame 110 shown in Figure 6 is a narrow frame design. The distance between the stepped vertical portion 11624 and the intermediate connecting plate 114 in Figure 6 is smaller than the distance between the stepped vertical portion 11624 and the intermediate connecting plate 114 in Figure 5. In both embodiments shown in Figures 5 and 6, the entire first frame 110 is provided with a stepped portion 1162, which facilitates the support of the glass 300.

[0095] 5 and 6 , when the angle formed between the front panel body 112 and the middle connecting plate body 114 is less than 90°, that is, 87°≤a<90°, the stepped plane portion 11622 will be offset as a whole toward the direction of the front panel body 112. In this way, when the glass pressing block 400 is assembled, since the stepped plane portion 11622 is closer to the front panel body 112, the glass pressing block 400 can be offset as a whole toward the direction of pressing against the glass 300 or has a tendency to be offset toward the direction of pressing against the glass 300. As a result, the glass pressing block 400 can be pressed against the glass 300 more firmly, reducing the risk of the glass 300 jumping off.

[0096] Figure 7 is a schematic cross-sectional view of the first frame 110 in one embodiment, and Figure 8 is a schematic cross-sectional view of the first frame 110 in another embodiment. Referring to Figures 7 and 8 , in some other embodiments, the stepped flat portion 11622 is offset relative to the stepped vertical portion 11624 in a direction approaching the first filter strip 210, and the angle formed between the stepped vertical portion 11624 and the stepped vertical portion 11624 is an angle b, where 90° < b ≤ 100°. In this manner, the stepped flat portion 11622 presses against the first filter strip 210, enhancing the secure clamping of the first filter strip 210. Furthermore, during assembly, the glass clamp 400 can be offset or have a tendency to press against the glass 300 because the stepped flat portion 11622 is closer to the front panel 112. This allows the glass clamp 400 to be more securely pressed against the glass 300, reducing the risk of the glass 300 becoming detached. In one embodiment, b may be 91°, 92°, 93°, 94°, 95°, 96°, or 100°.

[0097] In one embodiment, 90° < b ≤ 93°. Within this range, the stepped flat surface portion 11622 exerts greater pressure on the first filter bar 210 without affecting the assembly of the first filter bar 210, thereby improving the secure clamping of the first filter bar 210. Furthermore, during assembly, the stepped flat surface portion 11622 is closer to the front panel 112, allowing the glass clamp 400 to deflect or have a tendency to deflect toward the direction of pressing against the glass 300. This allows the glass clamp 400 to be more securely pressed against the glass 300, reducing the risk of the glass 300 becoming dislodged.

[0098] In one embodiment, when the angle formed between the front panel body 112 and the middle connecting plate body 114 is less than 90°, that is, 87°≤a<90°, at this time, the angle of the step plane portion 11622 as a whole being offset in the direction close to the front panel body 112 will become relatively larger. In this way, when the glass pressing block 400 is assembled, the step plane portion 11622 is closer to the front panel body 112. At this time, the glass pressing block 400 can be further offset as a whole in the direction of pressing against the glass 300, or the tendency of offsetting in the direction of pressing against the glass 300 is more obvious, and thus the glass pressing block 400 can be further firmly pressed against the glass 300, further reducing the risk of the glass 300 jumping off.

[0099] As can be seen, in the interactive tablet 10 described above, the first filter bar 210 is embedded in the mounting cavity 1102 through the opening 1104. The glass clamp 400 is disposed on the carrier 212. The glass clamp 400 presses against the glass 300, thereby securing the glass 300 to the filter bar. Because the side surface of the glass clamp 400 abuts against the portion of the first filter bar 210 located at the opening 1104, the first filter bar 210 is prevented from detaching along the opening 1104. In one embodiment, to enhance the stability of the first filter bar 210, the sidewalls of the first frame 110 used to form the mounting cavity 1102 themselves form a clamping structure for clamping the first filter bar 210, so that the first filter bar 210 is accommodated in the mounting cavity 1102. Alternatively, the glass block 400 and the sidewalls of the first frame 110 used to form the mounting cavity 1102 cooperate to form a clamping structure for clamping the first filter bar 210, thereby enhancing the stability of the first filter bar 210 in the mounting cavity 1102 and reducing the risk of the touch circuit board's accuracy in detecting user touch actions being affected due to unstable assembly of the first filter bar 210. In addition, when the filter bar is relatively securely accommodated in the mounting cavity 1102, the risk of the glass 300 on the first filter bar 210 detaching can also be reduced.

[0100] Figure 9 is a schematic structural diagram of the glass press block 400 from one perspective, Figure 10 is a schematic structural diagram of the glass press block 400 from another perspective, Figure 11 is an assembly diagram of the first frame 110 and the first filter strip 210, Figure 12 is an enlarged schematic diagram of the M portion in Figure 11, and Figure 24 is an enlarged schematic diagram of the R portion in Figure 11. Referring to Figures 9 to 12 and 24, one of the glass press block 400 and the stepped flat surface portion 11622 is provided with a first positioning protrusion 410, and the other is provided with a first positioning hole 11626. The glass press block 400 is inserted into the stepped flat surface portion 11622 through the first positioning protrusion 410 and the first positioning hole 11626 to be positioned and engaged with the stepped flat surface portion 11622. Thus, through the positioning and engagement of the first positioning protrusion 410 and the first positioning hole 11626, the glass press block 400 can be positioned and mounted on the first frame 110. 10 and 24 , the first frame 110 is provided with a first positioning hole 11626 at the stepped plane portion 11622 , and the glass pressing block 400 is provided with a first positioning protrusion 410 that is positioned and matched with the first positioning hole 11626 . The first positioning protrusion 410 may be a positioning column structure.

[0101] In some embodiments, the glass press block 400 and the stepped flat surface portion 11622 are further secured together using fasteners. The glass press block 400 can be secured directly to the stepped flat surface portion 11622 using fasteners, or after the glass press block 400 is positioned and mounted on the stepped flat surface portion 11622, the glass press block 400 can be secured to the stepped flat surface portion 11622 using fasteners. In one embodiment, the fasteners can be screws. Referring to Figures 12 and 24 , both the stepped flat surface portion 11622 and the glass press block 400 are provided with screw mounting holes 4000, and the glass press block 400 is secured to the stepped flat surface portion 11622 using screws and screw mounting holes 4000.

[0102] Figure 13 is a schematic diagram of the structure of the first filter bar 210 in one embodiment, and Figure 14 is an enlarged schematic diagram of S in Figure 13. Referring to Figures 13 and 14, in some embodiments, the interactive tablet 10 further includes a foam pad 500 connected to the outer sidewall of the first filter bar 210. The first filter bar 210 is squeezed together with the inner sidewall of the first frame 110 located in the mounting cavity 1102 by the foam pad 500, thereby being internally positioned within the mounting cavity 1102. The placement of the foam pad 500 between the first filter bar 210 and the first frame 110 enhances the clamping effect on the first filter bar 210, ensuring a more secure placement of the first filter bar 210 within the mounting cavity 1102.

[0103] In addition, when the first filter bar 210 is assembled into the mounting cavity 1102, it is necessary to pre-position the first filter bar 210 or, when the assembly structure consisting of the first frame 110 and the first filter bar 210 is transported, in order to prevent the first filter bar 210 from falling off from the mounting cavity 1102, the first filter bar 210 needs to be pre-fixed. In this case, a foam 500 is provided between the first filter bar 210 and the first frame 110. Under the action of the foam 500, the first filter bar 210 can be pre-accommodated in the mounting cavity 1102 and is not easily fallen off from the mounting cavity 1102.

[0104] 14 , there are at least two foams 500 , and all the foams 500 are spaced apart along the length direction of the first filter bar 210 . The length direction of the first filter bar 210 is direction C in FIG14 .

[0105] The interactive tablet 10 is generally square in structure, that is, the interactive tablet 10 generally has four frames connected end to end, with the display module arranged in the middle. The structure and material of the four frames are set according to needs.

[0106] For example, Figure 15 is a schematic diagram of the structure of the three first frames 110 after assembly, and Figure 16 is a schematic diagram of the frame structure of the interactive tablet 10. Referring to Figures 2, 15, and 16, in some embodiments, the number of first frames 110 and first filter bars 210 is three. The three first frames 110 are an upper frame 110a and two side frames 110b. The upper frame 110a refers to the frame located at the top when the interactive tablet 10 is in use, such as from the perspective of Figure 15. The side frames 110b can be understood as the frames on the left and right sides. The three first filter bars 210 are two side filter bars 210b and an upper filter bar 210a. The side filter bars 210b are correspondingly received in the mounting cavity 1102 of the side frames 110b, and the upper filter bar 210a is correspondingly received in the mounting cavity 1102 of the upper frame 110a.

[0107] The ends of the upper frame 110a can be connected to the two side frames 110b by welding to form a U-shaped frame structure. The use of welding to connect can effectively control the deviation or step difference between the upper frame 110a and the side frames 110b during installation. Of course, in other embodiments, the ends of the upper frame 110a can also be connected to the two side frames 110b by intermediate connecting members to form a U-shaped frame structure. The intermediate connecting member can be a corner member, and the upper frame 110a and the side frames 110b are connected by the corner member.

[0108] Figure 18 is a schematic structural diagram of the connecting corner 900. Please refer to Figures 2 and 16 to 18. The interactive tablet 10 also includes a second frame 120 and two connecting corners 900. The second frame 120 is a bottom frame 120a. The bottom frame 120a refers to the frame located at the bottom when the interactive tablet 10 is in use, such as the viewing angle in Figure 16.

[0109] In some embodiments, the second frame 120 may be an aluminum alloy frame. A connecting corner 900 is provided at each end of the bottom frame 120a and each of the two side frames 110b. The bottom frame 120a is connected to the end of the side frames 110b away from the upper frame 110a via the corresponding connecting corner 900. The connecting corner 900 may be a plastic structure formed by injection molding.

[0110] FIG19 is a cross-sectional view of the assembled first frame 110 and the first filter strip 210. Referring to FIG19 , each of the first filter strips 210 is provided with a receiving cavity 218. The interactive tablet 10 further includes three first touch circuit boards 700, namely an upper circuit board 700a and two side circuit boards 700b. The side circuit boards 700b are correspondingly received in the receiving cavities 218 of the side filter strips 210b, and the upper circuit board 700a is correspondingly received in the receiving cavity 218 of the upper filter strip 210a.

[0111] In one embodiment, referring to FIG. 4 and FIG. 19 , the sidewall of the first filter bar 210 forming the accommodating cavity 218 further has a slot structure, and the first touch circuit board 700 is movably mounted in the slot structure.

[0112] FIG20 is an enlarged schematic diagram of N in FIG15 , FIG21 is a structural entity diagram of the limiting bracket 600 from a front perspective, and FIG22 is a schematic diagram of the limiting bracket 600 from a rear perspective. Referring to FIG20-22 , limiting brackets 600 are provided at the connecting corners 900 of the upper frame 110a and the side frame 110b, that is, a limiting bracket 600 is provided at each of the upper frame 110a and the left frame 110b and the right frame 110b. The limiting brackets 600 each include a limiting body 610 and a first locking body 620 connected to each other. The limiting body 610 is provided between the upper frame 110a and the side frame 110b, and the first locking body 620 is connected to the upper frame 110a.

[0113] 20 to 22, the limiting body 610 includes a first limiting surface 612 facing the upper frame 110a and a second limiting surface 614 facing the side frame 110b. In the longitudinal direction of the upper frame 110a, that is, the direction E in FIG. 20, the first limiting surface 612 is limited and matched with the end of the upper filter bar 210a and the end of the upper circuit board 700a. In this way, under the limiting action of the first limiting surface 612, the upper filter bar 210a and the upper circuit board 700a will not shake or the shaking amplitude due to assembly error is within an acceptable range, thereby reducing the risk of the upper filter bar 210a being assembled improperly. The upper circuit board 700a is more securely mounted in the accommodating cavity 218 due to the first limiting surface 612, thereby reducing the risk of the upper circuit board 700a being unstable and affecting the accuracy of detecting user touch actions. At the same time, under the action of the first limiting surface 612, the upper circuit board 700a itself can be more securely mounted in the accommodating cavity 218, further reducing the risk of the upper circuit board 700a shaking and affecting the accuracy of detecting user touch actions during use. In addition, the upper filter bar 210a is limited by the first limiting surface 612 to prevent the upper filter bar 210a from shaking in the longitudinal direction of the upper frame 110a, thereby reducing the risk of the glass 300 disposed on the upper filter bar 210a jumping off.

[0114] It should be noted that the first limiting surface 612 is engaged with the end of the upper filter bar 210a and the end of the upper circuit board 700a in a limiting manner. It can be understood that the first limiting surface 612 and the end of the upper filter bar 210a and the end of the upper circuit board 700a are in complete abutment contact or there is a certain gap deviation due to assembly error.

[0115] Continuing with Figures 20 and 21 , the second limiting surface 614 cooperates with the end of the side circuit board 700b in the longitudinal direction of the side frame 110b, i.e., in the direction D in Figure 20 . This allows the second limiting surface 614 to limit the position of the end of the side circuit board 700b, thereby reducing the risk of the touch panel shaking during use affecting the accuracy of user touch detection.

[0116] It should be noted that the limiting cooperation between the second limiting surface 614 and the end of the side circuit board 700b can be that the two are completely in contact with each other or there is a certain gap deviation due to assembly error.

[0117] As can be seen from the aforementioned embodiment, the upper filter strip 210a and the upper circuit board 700a can be limited by the first limiting surface 612, and the side circuit board 700b is limited by the second limiting surface 614. However, the impact of the shaking of the side filter strip 210b on the side circuit board 700b cannot be reduced.

[0118] To solve the aforementioned problem, please refer to FIG. 23 , which is a partially enlarged schematic diagram of the interactive tablet 10 in one embodiment. In some embodiments, the upper filter bar 210 a and the side filter bar 210 b contact and abut against each other, and in the longitudinal direction of the side frame 110 b, the orthographic projection of the upper filter bar 210 a at least partially falls on the side filter bar 210 b. The orthographic projection of the upper filter bar 210 a is also the projection of the upper filter bar 210 a along the direction D. At this time, the upper filter bar 210 a and the side filter bar 210 b overlap in the longitudinal direction of the side frame 110 b. Consequently, in the longitudinal direction D of the side frame 110 b, the upper filter bar 210 a can limit the side filter bar 210 b. In this way, there is no need to provide an additional corresponding limiting structure to limit the side filter bar 210 b. In one embodiment, the upper filter strip 210 a and the side filter strip 210 b abut against each other, which not only limits each other but also prevents light leakage.

[0119] It should be noted that the upper filter strip 210 a and the side filter strip 210 b may be in complete contact with each other or may have a certain gap deviation due to assembly error.

[0120] FIG17 is a schematic diagram illustrating the assembly of the side frame 110b and the bottom frame 120a via the connecting corner 900. Referring to FIG17 , a third limiting surface 926 is formed on the bottom side of the connecting corner 900, facing the side filter strip 210b. Along the length of the side frame 110b, i.e., in the direction D in FIG23 , the third limiting surface 926 engages with the end of the side filter strip 210b, while the fourth limiting surface 928 engages with the end of the side circuit board 700b. Thus, the combined restraining action of the third limiting surface 926 and the upper filter strip 210a restricts movement of the side filter strip 210b in the direction D. This reduces the risk of unstable assembly of the side filter strip 210b affecting the accuracy of the side circuit board 700b's detection of user touch actions. Furthermore, by limiting the swaying of the side filter strip 210b in the direction D, the risk of the glass 300 on the side filter strip 210b detaching is also reduced. In one embodiment, under the joint limiting action of the second limiting surface 614 and the fourth limiting surface 928, the side circuit board 700b can be restricted from moving in the D direction. In this way, the side circuit board 700b itself can be more firmly installed in the accommodating cavity 218, thereby further reducing the risk of the side circuit board 700b shaking during use and affecting the user's touch action detection accuracy.

[0121] It should be noted that the positioning cooperation between the third limiting surface 926 and the side filter strip 210b can be complete contact between the two, or there can be a certain gap deviation due to assembly error. Similarly, the positioning cooperation between the fourth limiting surface 928 and the side circuit board 70b bracket can be complete contact between the two, or there can be a certain gap deviation due to assembly error.

[0122] In one embodiment, referring to Figures 20 and 21, the limiting body 610 is provided with a first limiting surface 612, which can limit the upper filter bar 210a and the upper circuit board 700a. To improve the reliability of the limiting of the upper filter bar 210a and the upper circuit board 700a, the first locking body 620 is connected to the upper frame 110a. At this time, the first limiting surface 612 can always maintain a limiting state with the upper filter bar 210a and the upper circuit board 700a.

[0123] In one embodiment, referring to Figures 21 and 22, in some embodiments, one of the first locking body 620 and the upper frame 110a is provided with a second positioning protrusion 622, and the other is provided with a second positioning hole 11628. The first locking body 620 and the upper frame 110a are engaged and positioned together via the second positioning protrusion 622 and the second positioning hole 11628. In this manner, by positioning the first locking body 620 and the upper frame 110a, the first limiting surface 612 can be positioned and engaged with the upper filter strip 210a and the upper circuit board 700a during installation of the limiting bracket 600. Referring to Figures 12, 22, and 23, in this embodiment, the first locking body 620 is provided with a second positioning protrusion 622, and the upper frame 110a is provided with a second positioning hole 11628. The second positioning protrusion 622 can be a positioning post structure.

[0124] Referring to Figures 20 to 22, in some embodiments, the first locking body 620 and the upper frame 110a may be secured together using fasteners. In these embodiments, the first locking body 620 may be directly secured to the upper frame 110a, thereby ensuring that the first limiting surface 612 is consistently secured in position with the upper filter bar 210a and the upper circuit board 700a. Alternatively, by first positioning the first locking body 620 and the upper frame 110a and then locking the first locking body 620 and the upper frame 110a, the reliability of the securing relationship between the first limiting surface 612, the upper filter bar 210a, and the upper circuit board 700a may be enhanced, ensuring that the first limiting surface 612 is consistently secured in position with the upper filter bar 210a and the upper circuit board 700a. In one embodiment, the fasteners may be screws.

[0125] However, after a series of studies, the inventors found that when the first locking body 620 is locked to the upper frame 110a through fasteners, the limiting bracket 600 as a whole will be tilted relative to the upper frame 110a, so that there is a certain assembly step difference between the limiting bracket 600 and the side frame 110b, which is not conducive to the subsequent assembly of other components.

[0126] Based on this, please refer to Figures 20 to 25. In Figure 25, in some embodiments, the limiting bracket 600 further includes a second locking body 630. The second locking body 630 is connected to the side wall of the limiting body 610 facing away from the upper frame 110a, and the second locking body 630 is connected to the side frame 110b. In this way, an additional second locking body 630 is provided in a direction opposite to the first locking body 620, and the second locking body 630 is connected to the side frame 110b. In this way, the assembly step difference between the limiting bracket 600 and the side frame 110b can be reduced.

[0127] 21 and 22 , the first locking body 620 and the second locking body 630 can both be connecting plates, and the entirety of the body is a plastic structure.

[0128] In one embodiment, the second locking body 630 and the side frame 110b can be connected by a snap-fit ​​connection. For example, referring to FIG. 25 , the second locking body 630 has a snap-fitting protrusion, and the side frame 110b has a retaining edge. The snap-fitting connection between the second locking body 630 and the side frame 110b is achieved by the snap-fitting protrusion retaining the retaining edge.

[0129] In one embodiment, based on the aforementioned embodiment, referring to FIG. 22 , a support body 640 is further provided on the side of the limiting bracket 600 facing the back panel 2000 of the interactive tablet 10 . The support body 640 is used to support the back panel 2000 of the interactive tablet 10 to prevent collapse when the back panel 2000 is pressed.

[0130] The optional structure of the connection switching will be described below with reference to the accompanying drawings.

[0131] 17 and 18, the connecting corner 900 is L-shaped, with one end of the connecting corner 900 connected to the side frame 110b and the other end connected to the bottom frame 120a. The connecting corner 900 can be a plastic structure formed by injection molding.

[0132] In one embodiment, FIG26 is an enlarged schematic diagram of P in FIG16 . Referring to FIG18 and FIG26 , in some embodiments, a clamping groove 910 is formed on one end of the connecting corner 900 near the side frame 110b. The connecting corner 900 is clamped to the side frame 110b facing the back panel 2000 of the interactive tablet 10 via the clamping groove 910. The other end of the connecting corner 900 is inserted into the internal cavity of the bottom frame 120a. The clamping groove 910, when clamped on the side frame 110b, essentially serves to position the connecting corner 900. When the connecting corner 900 is clamped to the side frame 110b via the clamping groove 910, the connecting corner 900 and the side frame 110b are then connected and fixed using screws. The clamping groove 910 can be formed in a variety of ways, for example, by digging a groove in the connecting corner 900 to form the clamping groove 910, or by forming the connecting corner 900 by disposing two mounting bodies spaced apart from each other. In one embodiment, referring to FIG. 26 , the clamping groove 910 is clamped on the stepped flat surface portion 11622 of the side frame 110 b .

[0133] However, during the assembly process of the side frame 110b, for example, when the side frame 110b is a rolled frame, the side frame 110b will be turned outward relative to the bottom frame 120a in a direction away from the bottom frame 120a, such as the X direction in Figure 26. At this time, the assembly step difference formed between the side frame 110b and the bottom frame 120a during the assembly process is relatively large.

[0134] Based on this, please refer to Figures 18 and 26. In some embodiments, a first mounting hole 126 and a second mounting hole 128 are formed on the side of the bottom frame 120a facing the back panel 2000 of the interactive tablet 10. The first mounting hole 126 and the second mounting hole 128 are spaced apart along the width direction of the bottom frame 120a. The width direction of the bottom frame 120a is the Z direction in Figure 26. The first mounting hole 126 is closer to the display area than the second mounting hole 128. The portion of the connecting corner 900 that is used to extend into the internal cavity of the bottom frame 120a is formed with a mounting surface 920, and the mounting surface 920 is provided with a third mounting hole 922 and a mounting boss 924 that protrudes relative to the third mounting hole 922 in a direction away from the mounting surface 920, and the mounting boss 924 corresponds to the first mounting hole 126 and is configured to be connected by a fastener. In other words, the fastener passes through the first mounting hole 126 and is connected to the mounting boss 924, and the third mounting hole 922 corresponds to the second mounting hole 128 and is configured to be connected by a fastener. In other words, the fastener passes through the second mounting hole 128 and is cooperatively connected with the third mounting hole 922.

[0135] Since the mounting boss 924 is protruding relative to the mounting surface 920, after assembly by fasteners, the side of the bottom frame 120a located on the mounting boss 924 will be higher than the side of the bottom frame 120a located at the third mounting hole 922. In this way, as shown in Figure 26, the bottom frame 120a as a whole will have a flip in the Y direction. When the bottom frame 120a flips, it will pull the side frame 110b to move along the side close to the display area. In this way, under the pulling of the bottom frame 120a, the side frame 110b that was originally flipped outward relative to the bottom frame 120a along the X direction will be pulled back, thereby reducing the assembly step difference formed between the side frame 110b and the bottom frame 120a during the assembly process.

[0136] In one embodiment, the fastener may be a screw, and the mounting boss 924 is provided with a threaded hole. The screw passes through the first mounting hole 126 on the bottom frame 120a and cooperates with the threaded hole to achieve the connection between the bottom frame 120a and the mounting boss 924. The first mounting hole 126 and the second mounting hole 128 may be through-holes, and the third mounting hole 922 may be a threaded hole.

[0137] The connecting corners 900 are generally made of plastic. When the side frames 110b and the bottom frame 120a are connected via the connecting corners 900, the strength of the interactive tablet 10 at the corners will be relatively low. To ensure the strength requirements of the interactive tablet 10 at the corners and reduce the risk of damage to the interactive tablet 10 at the corners, it is necessary to strengthen the overall strength of the interactive tablet 10 at the corners.

[0138] FIG27 is a schematic diagram of the assembly of the side frame 110b and the bottom frame 120a. Referring to FIG27, in some embodiments, one end of the side frame 110b near the bottom frame 120a is bent to form a bent portion 118, and the bent portion 118 is spliced ​​with the bottom frame 120a. A reinforcing body 1182 is provided on the side of the bent portion 118 facing the bottom frame 120a. The reinforcing body 1182 extends into the internal cavity of the bottom frame 120a and is connected to the bottom frame 120a. By providing the reinforcing body 1182 and the bottom frame 120a, the strength of the interactive tablet 10 at this location can be enhanced. In one embodiment, the reinforcing body 1182 and the bottom frame 120a can be connected by screws. The screw connection of the reinforcing body 1182 and the bottom frame 120a can also solve the problem of EMC grounding and conductivity.

[0139] It should be noted that the splicing of the bending portion 118 and the bottom frame 120a means that the bending portion 118 and the bottom frame 120a are in a docking state. The bending portion 118 and the bottom frame 120a may meet and abut against each other, or there may be a certain gap deviation between the two due to assembly errors.

[0140] In addition to the above-mentioned frame and filter strip components, the interactive tablet 10 also includes some audio and video modules 1000, such as cameras and microphones. The audio and video modules 1000 can generally be placed outside the frame, for example, installed on the top of the frame through some brackets, or a mounting slot is opened on the frame and the audio and video modules 1000 are built into the mounting slot.

[0141] Please refer to Figures 1, 13-14, and 28-30. Figure 28 is a schematic diagram of the outer frame of the interactive tablet 10, Figure 29 is an enlarged schematic diagram of O in Figure 28, and Figure 30 is an enlarged schematic diagram of T in Figure 1. In some embodiments, the first frame 110 is located within the mounting cavity 1102 and has an audio / video area 1106 for accommodating the audio / video module 1000. The first filter strip 210 is formed with a clearance notch 216 corresponding to the audio / video area 1106 to allow for the audio / video module 1000 to pass through. Since the first filter bar 210 is generally made of PC, once the first filter bar 210 has the avoidance notch 216 formed therein, the strength of the first filter bar 210 around the avoidance notch 216 is relatively low. During use, the first filter bar 210 may bend toward the audio / video module 1000 at the bottom of the avoidance notch 216. This may cause the touch circuit board located within the first filter bar 210 to deviate, thereby affecting the first touch circuit board 700's ability to accurately detect user touch actions.

[0142] In this regard, referring to Figures 3 and 12 , based on the aforementioned embodiment, a limiting protrusion 214 is formed on the side of the first filter strip 210 facing the stepped portion 1162. The interactive tablet 10 further includes a limiting member 3000, which is disposed through the portion of the stepped flat surface portion 11622 corresponding to the audio and video area 1106. In the height direction of the first frame 110, such as the direction H in Figure 3 , the limiting member 3000 is closer to the avoidance notch 216 than the limiting protrusion 214. The orthographic projection of the limiting member 3000 toward the first filter strip 210 at least partially falls on the limiting protrusion 214, ensuring that the limiting member 3000 and the limiting protrusion 214 cooperate to limit the height of the first frame 110. Thus, under the limiting and blocking action of the limiting member 3000, the first filter strip 210 is less likely to deform at the avoidance notch 216. The orthographic projection of the limiting member 3000 toward the first filter bar 210 is the projection of the limiting member 3000 in the H direction. At this time, it can also be understood that in the H direction, the limiting member 3000 is located directly above the first filter bar 210 .

[0143] In one embodiment, referring to Figures 12 and 14 , the limiting protrusion 214 extends along the length of the first frame 110. The limiting protrusion 214 contacts and seals the side of the first filter strip 210 with the step portion 1162. The limiting protrusion 214 not only prevents deformation of the first filter strip 210 at the avoidance notch 216, but also seals the gap between the first filter strip 210 and the first frame 110, preventing dust and water from entering the mounting cavity 1102 of the first frame 110 through the gap and causing damage to components within the mounting cavity 1102.

[0144] Referring to Figure 3 , in this embodiment, the limiting member 3000 is a screw. In one embodiment, a corresponding threaded hole is formed in the first frame 110. The screw is threadedly engaged with the threaded hole and extends to engage with the limiting protrusion 214 in the height direction of the first frame 110. Of course, the limiting member 3000 can also be another cylindrical structure, which passes through the first frame 110 and engages with the limiting protrusion 214 in a limiting manner.

[0145] In one embodiment, please refer to Figures 3 and 28, the audio and video module 1000 is set on the upper frame 110a, and an audio and video area 1106 is correspondingly set in the installation cavity 1102 of the upper frame 110a. A limiting protrusion 214 is correspondingly set on the upper filter strip 210a corresponding to the audio and video area 1106, and a screw passes through the upper frame 110a and cooperates with the limiting protrusion 214 to limit the position in the H direction.

[0146] 2 , the interactive tablet 10 further includes a second filter strip 220 and a second touch circuit board 800 . The second touch circuit board 800 is located within the internal cavity of the bottom frame 120 a . A snap-fit ​​groove is formed on the side of the bottom frame 120 a facing the display area, and the second filter strip 220 is snapped into the snap-fit ​​groove.

[0147] The second touch circuit board 800 may have the same structure as the first touch circuit board 700 and may be a touch circuit board for implementing infrared detection in the interactive tablet 10. The second filter strip 220 may also be made of transparent PC material and manufactured by extrusion molding.

[0148] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0149] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An interactive tablet, wherein: include: A first frame, wherein a mounting cavity is formed in the first frame, and an opening is formed on a side of the first frame close to the display area of the interactive flat panel, the opening being in communication with the mounting cavity; a first filter bar, the first filter bar being built into the mounting cavity, a bearing portion being formed at one end of the first filter bar close to the display area, the bearing portion being disposed at the opening and exposed through the opening; Glass, the glass is placed on the supporting portion; and a glass pressing block, one end of the glass pressing block being connected to the first frame, and the other end being pressed against a side of the glass facing away from the supporting portion, wherein a side surface of the glass pressing block abuts against a portion of the first filter strip located at the opening to prevent the first filter strip from escaping from the mounting cavity along the opening; The first filter strip is clamped by the first frame forming the side wall of the mounting cavity to be accommodated in the mounting cavity; or the first filter strip is clamped by the first frame forming the side wall of the mounting cavity and the glass pressing block to be accommodated in the mounting cavity.

2. The interactive tablet according to claim 1, wherein: The first frame includes a front panel body, an intermediate connecting plate body and a back panel body, the front panel body is connected to the back panel body through the intermediate connecting plate body and is surrounded to form the installation cavity, the front panel body and the back panel body are relatively spaced apart and form the opening, wherein the angle formed between the front panel body and the intermediate connecting plate body is a, wherein 80°≤a≤90°.

3. The interactive tablet according to claim 2, wherein: 87°≤a≤90°。 4. The interactive tablet according to claim 2, wherein: One end of the back panel body close to the display area is bent toward the front panel body to form a step portion, the step portion includes a step plane portion facing the first filter strip and a step vertical portion connected to the step plane portion and arranged at an angle, the glass block is connected to the step plane portion, and the step plane portion and the step vertical portion are perpendicular to each other; or The stepped flat portion is offset relative to the stepped vertical portion in a direction close to the first filter strip and forms an angle b with the stepped vertical portion, wherein 90°<b≤100°.

5. The interactive tablet according to claim 4, wherein: 90°＜b≤93°。 6. The interactive tablet according to claim 4, wherein: The first frame is provided with an audio and video area for accommodating an audio and video module in the installation cavity, the first filter strip is formed with a clearance notch for accommodating the audio and video module at a position corresponding to the audio and video area, and a limiting protrusion is formed on one side of the first filter strip facing the step portion; The interactive tablet further includes a limiting member, which is provided through a portion of the step plane portion corresponding to the audio and video area, and in the height direction of the first frame, the limiting member is closer to the avoidance notch than the limiting protrusion. The orthographic projection of the limiting member toward the first filter strip at least partially falls on the limiting protrusion, so that the limiting member and the limiting protrusion cooperate to limit the position in the height direction of the first frame.

7. The interactive tablet according to claim 4, wherein: The limiting protrusion extends along the length direction of the first frame, and the limiting protrusion contacts and seals with the side surface of the step portion facing the first filter strip.

8. The interactive tablet according to claim 4, wherein: One of the glass pressing block and the stepped plane portion is provided with a first positioning protrusion, and the other is provided with a first positioning hole, and the glass pressing block is inserted into the first positioning protrusion and the first positioning hole to be positioned and matched with the stepped plane portion; and / or The glass pressing block and the stepped plane portion are further fixedly matched by fasteners.

9. The interactive tablet according to any one of claims 1 to 8, wherein: The interactive flat panel further includes foam connected to the outer side wall of the first filter strip. The first filter strip is squeezed and fitted with the inner side wall of the first frame located in the mounting cavity through the foam to be built into the mounting cavity.

10. The interactive tablet according to claim 9, wherein: The number of the foams is at least two, and all the foams are arranged at intervals along the length direction of the first filter strip.

11. The interactive tablet according to any one of claims 1 to 8, wherein: The first frame is a rolled frame.

12. The interactive tablet according to any one of claims 1 to 8, wherein: The number of the first frames and the first filter strips are both three, the three first frames are respectively an upper frame and two side frames, the three first filter strips are respectively two side filter strips and an upper filter strip, the side filter strips are correspondingly accommodated in the mounting cavity of the side frames, and the upper filter strip is correspondingly accommodated in the mounting cavity of the upper frame; The two ends of the upper frame are respectively welded to the two side frames or connected via an intermediate connecting piece to form a U-shaped frame structure.

13. The interactive tablet according to claim 12, wherein: Each of the first filter strips is provided with a receiving cavity therein. The interactive flat panel further comprises three first touch circuit boards, namely an upper circuit board and two side circuit boards. The side circuit boards are correspondingly received in the receiving cavities of the side filter strips, and the upper circuit board is correspondingly received in the receiving cavity of the upper filter strip.

14. The interactive tablet according to claim 13, wherein: Limiting brackets are provided at the connecting corners of the upper frame and the side frames, and the limiting brackets include a limiting body and a first locking body connected to each other, the limiting body is provided between the upper frame and the side frames, and the first locking body is connected to the upper frame; The limiting body includes a first limiting surface facing the upper frame and a second limiting surface facing the side frame. In the length direction of the upper frame, the first limiting surface is limitedly matched with the end of the upper filter strip and the end of the upper circuit board. In the length direction of the side frame, the second limiting surface is limitedly matched with the end of the side circuit board.

15. The interactive tablet according to claim 14, wherein: The upper filter bar and the side filter bar are in contact with each other, and in the length direction of the side frame, the orthographic projection of the upper filter bar at least partially falls on the side filter bar, so that in the length direction of the side frame, the upper filter bar can limit the side filter bar.

16. The interactive tablet according to claim 14, wherein: One of the first locking body and the upper frame is provided with a second positioning protrusion, and the other is provided with a second positioning hole, and the first locking body and the upper frame are plugged into each other through the second positioning protrusion and the second positioning hole for positioning fit; and / or The first locking body and the upper frame are further fixedly matched by fasteners.

17. The interactive tablet according to claim 14, wherein: The limiting bracket further includes a second locking body, which is connected to a side wall of the limiting body facing away from the upper frame, and the second locking body is connected to the side frame.

18. The interactive tablet according to claim 17, wherein: The side of the limiting bracket facing the back panel of the interactive flat panel is further provided with a supporting body, and the supporting body is used to support the back panel of the interactive flat panel.

19. The interactive tablet according to claim 12, wherein: The interactive tablet also includes a second frame and two connecting corners, the second frame is a bottom frame, and a connecting corner is correspondingly provided at each end of the bottom frame and the two side frames, and the bottom frame is connected to the end of the side frame away from the upper frame through the corresponding connecting corner.

20. The interactive tablet according to claim 19, wherein: A clamping groove is formed at one end of the connecting corner close to the side frame, and the connecting corner is clamped on the back panel side of the side frame facing the interactive flat panel through the clamping groove, and the other opposite end of the connecting corner is inserted into the internal cavity of the bottom frame.

21. The interactive tablet according to claim 20, wherein: A first mounting hole and a second mounting hole are formed on a side of the bottom frame facing the back panel of the interactive flat panel, the first mounting hole and the second mounting hole being spaced apart along the width direction of the bottom frame, with the first mounting hole being closer to the display area than the second mounting hole; The portion of the connecting corner that is used to extend into the internal cavity of the bottom frame is formed with a mounting surface, and the mounting surface is provided with a third mounting hole and a mounting boss that protrudes away from the mounting surface relative to the third mounting hole, and the mounting boss corresponds to the first mounting hole and is configured to be connected by a fastener; the third mounting hole corresponds to the second mounting hole and is configured to be connected by a fastener.

22. The interactive tablet according to claim 20, wherein: One end of the side frame close to the bottom frame is bent to form a bent portion, and the bent portion is spliced with the bottom frame. A reinforcement body is provided on the side of the bent portion facing the bottom frame, and the reinforcement body extends into the internal cavity of the bottom frame and is connected to the bottom frame.

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