Interaction tablet

Abstract

An interactive flat plate comprises a glass substrate, a frame, a light filtering strip, a glass pressing block and a back plate, the frame is arranged on the side edge of the glass substrate and comprises a first plate body and a second plate body which are arranged in the height direction of the frame, and a supporting part is formed at the end, close to the glass substrate, of the first plate body; an opening communicated with the inner cavity of the frame is formed between the supporting part and the second plate body at an interval; the light filtering strip is arranged in the inner cavity of the frame, and part of the light filtering strip extends into the opening to be in limiting fit with the supporting part in the height direction of the frame, so that the light filtering strip is mounted, and deformation of the frame can be avoided; the glass substrate extends into the opening and is arranged at the part of the light filtering strip positioned at the opening; the fixed end of the glass pressing block is fixedly arranged on the supporting part, the abutting end of the glass pressing block abuts against the glass substrate, and the back plate is fixedly arranged on the end face, away from the supporting part, of the fixed end of the glass pressing block, so that the glass substrate is limited, and the glass substrate is prevented from being disengaged from the light filtering strip.

Description

interactive tablet Technical Field

[0001] The present invention relates to the field of display technology, and in particular to an interactive tablet. Background Art

[0002] Interactive smart 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 flat panels generally include a display module and an aluminum frame surrounding the outside of the display module. The frame is provided with a snap-in groove for snapping in the filter strip. The glass substrate is inserted into the filter strip and clamped by the filter strip. The back panel is overlapped and screwed to the supporting surface of the frame.

[0004] However, traditional interactive flat panels are inconvenient to install because the filter strips need to be clipped into the smaller clipping slots of the aluminum profile. In addition, the glass substrate is limited by the clamping effect of the filter strips alone, which makes the glass substrate unstable and easily fall out of the filter strips.

[0005] Summary of the Invention

[0006] The purpose of the present invention is to provide an interactive flat panel, which solves the problems of inconvenient installation of filter strips and weak fixation of glass substrates in existing interactive flat panels.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] The present invention provides an interactive tablet, comprising:

[0009] Glass substrate;

[0010] a frame, the frame being arranged on a side of the glass substrate, the frame comprising a first plate and a second plate arranged along a height direction of the frame, the first plate and the second plate forming boundaries of an internal cavity of the frame, a support portion being formed at one end of the first plate close to the glass substrate, an opening being spaced apart between the support portion and the second plate to form communication with the internal cavity of the frame;

[0011] a filter bar, the filter bar being disposed in an internal cavity of the frame, and a portion of the filter bar extending into the opening to engage with the support portion in a height direction of the frame, the glass substrate extending into the opening and being mounted on the portion of the filter bar located in the opening;

[0012] A glass pressing block and a back plate, wherein the fixed end of the glass pressing block is fixed on the supporting portion, the abutting end of the glass pressing block abuts against the glass substrate, and the back plate is fixed on the end surface of the fixed end of the glass pressing block away from the supporting portion.

[0013] As a preferred solution of the above-mentioned interactive tablet, a receiving cavity is provided inside the filter bar, and the interactive tablet further comprises a touch frame, which is inserted into the receiving cavity.

[0014] As a preferred solution of the above-mentioned interactive tablet, along the height direction of the frame, two opposite cavity walls in the accommodating cavity are provided with sliding grooves, and the touch frame is embedded in the two oppositely arranged sliding grooves.

[0015] As a preferred solution of the above-mentioned interactive flat panel, the filter strip is provided with a limiting notch recessed into the accommodating cavity, and the supporting portion extends into the limiting notch and cooperates with the limiting notch in a height direction of the frame.

[0016] As a preferred solution of the above-mentioned interactive flat panel, an embedding groove is formed in the portion of the filter strip extending into the opening, and the glass substrate is inserted into the embedding groove.

[0017] As a preferred solution of the above-mentioned interactive flat panel, a groove wall of the embedding groove is formed with a guiding slope at the groove opening, and the guiding slope is used to guide the glass substrate to extend into the embedding groove.

[0018] As a preferred solution of the above-mentioned interactive flat panel, the filter strip has a light-emitting surface on one side of the embedding groove. Along the height direction of the frame, the light-emitting surface is located below the embedding groove. The angle between the light-emitting surface and the glass substrate is a, 90°<a<180°.

[0019] As a preferred solution of the above-mentioned interactive flat panel, 100°≤a≤120°.

[0020] As a preferred embodiment of the interactive tablet, the support portion includes a limiting section and a supporting section, wherein the limiting section and the supporting section are arranged at an angle, the limiting section extends along the height direction of the frame, and the supporting section extends in a direction away from the internal cavity of the frame;

[0021] The support section and the first plate are spaced apart along the height direction of the frame to form the opening. The fixed end of the glass pressing block is fixed to the support section. The filter strip and the support section are positionally matched along the height direction of the frame.

[0022] As a preferred solution of the above-mentioned interactive flat panel, the limiting section and the supporting section are perpendicular to each other.

[0023] As a preferred solution of the above-mentioned interactive tablet, the interactive tablet further includes an end cover plate, and the end cover plate is sealed at the end of the frame.

[0024] As a preferred solution of the above-mentioned interactive flat panel, the end cover plate includes:

[0025] a cover plate body, the cover plate body being sealed at an end of the frame and connected to the frame; and

[0026] A connecting plate is vertically connected to the cover plate body, and the connecting plate extends into the interior of the frame and is connected to the frame.

[0027] As a preferred solution of the above-mentioned interactive flat panel, the fixed end of the glass pressing block is provided with a fixing portion, and the fixing portion is provided between the supporting portion and the back plate and connected to the supporting portion and the back plate; and

[0028] The abutting end of the glass pressing block is provided with an abutting portion, one end of the abutting portion is connected to the fixing portion, and the other end of the abutting portion abuts against the glass substrate.

[0029] As a preferred solution of the above-mentioned interactive tablet, the fixing portion is provided with a first connection hole and a second connection hole, the supporting portion is provided with a third connection hole corresponding to the first connection hole, and the back plate is provided with a fourth connection hole corresponding to the second connection hole;

[0030] The first fixing member is connected to the third connecting hole through the first connecting hole to connect the fixing portion to the frame; the second fixing member is connected to the second connecting hole through the fourth connecting hole to connect the fixing portion to the back panel.

[0031] As a preferred solution of the above-mentioned interactive flat panel, reinforcing ribs are provided on the fixing portion and / or the abutting portion.

[0032] As a preferred solution of the above-mentioned interactive tablet, the fixing portion includes:

[0033] A connecting body and a support platform, one of the two opposite sides of the connecting body is connected to the abutment portion, and the other side is connected to the support platform, the main structure of the back panel is covered and connected to the connecting body, and an angle is formed between the support platform and the connecting body to form an accommodating space, and the folded edge structure of the back panel extends into the accommodating space.

[0034] The connecting body supports and fixes the main structure of the backboard. The support platform and the connecting body are arranged at an angle to form an accommodating space to accommodate the folding structure of the backboard.

[0035] As a preferred solution of the above-mentioned interactive flat panel, a positioning protrusion is provided on one of the glass block and the support portion, and a positioning hole is provided on the other of the glass block and the support portion, and the glass block is positioned and mounted on the support portion by plugging and fitting the positioning protrusion and the positioning hole.

[0036] Beneficial effects of the present invention:

[0037] In the interactive flat panel proposed by the present invention, the filter strip is arranged in the internal cavity of the frame, and a portion of the filter strip extends into the opening of the frame to cooperate with the support portion in the height direction of the frame to achieve installation of the filter strip and avoid deformation of the frame; the glass substrate extends into the opening of the frame and is mounted on the portion of the filter strip located in the opening; the fixed end of the glass pressing block is fixed to the support portion, and the abutting end of the glass pressing block abuts against the glass substrate; the back plate is fixed to the end surface of the fixed end of the glass pressing block away from the support portion, thereby limiting the position of the glass substrate and preventing the glass substrate from falling out of the filter strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0039] FIG1 is a first structural diagram of an interactive tablet according to an embodiment of the present invention;

[0040] FIG2 is an exploded view of the interactive tablet in FIG1 ;

[0041] FIG3 is a second structural diagram of an interactive tablet in an embodiment of the present invention;

[0042] FIG4 is a cross-sectional view of an interactive flat panel according to an embodiment of the present invention;

[0043] FIG5 is a schematic diagram of a partial structure of an interactive tablet in an embodiment of the present invention;

[0044] FIG6 is a cross-sectional view of a frame body in an embodiment of the present invention;

[0045] FIG7 is a cross-sectional view of a filter strip according to an embodiment of the present invention;

[0046] FIG8 is a partial enlarged view of point A in FIG2;

[0047] 9 is a schematic structural diagram of an end cover in an embodiment of the present invention;

[0048] FIG10 is a structural schematic diagram of a glass pressing block according to an embodiment of the present invention;

[0049] FIG11 is a second structural diagram of a glass pressing block according to an embodiment of the present invention;

[0050] FIG12 is a third structural diagram of a glass pressing block according to an embodiment of the present invention;

[0051] FIG13 is a partial enlarged view of point B in FIG3 . 1. Frame; 10. Opening; 12. End cover; 111. Support portion; 112. Enclosure; 113. First plate; 114. Second plate; 121. Cover body; 122. Connecting plate; 1111. Limiting section; 1112. Supporting section; 1211. First fixing hole; 1221. Third fixing hole; 21. Back plate; 211. Main structure; 212. Folding structure; 22. Glass substrate; 3. Filter strip; 30. Accommodating cavity; 31. Embedding groove; 32. Limiting notch; 33. Guide slope; 34. Light emitting surface; 35. First slide groove; 36. Second slide groove; 4. Touch frame; 5. Glass pressing block; 501. Fixed end; 502. Abutting end; 51. Fixed portion; 52. Abutting portion; 511. Connecting body; 512. Support platform; 521. Reinforcing rib; 5111. First connecting hole; 5112. Second connecting hole; 5113. Avoidance groove; 5114. Positioning protrusion. DETAILED DESCRIPTION

[0052] To make the purpose, technical solutions, and advantages of this application more clear, the embodiments of this application will be further described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0053] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0054] In the description of this application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0055] Traditional interactive tablets generally include a display module and a frame surrounding the display module. The frame is generally made of aluminum profiles. A touch frame is installed inside the frame. The touch frame includes a touch frame PCBA and infrared transmitters / infrared receivers arranged on the touch frame PCBA.

[0056] An infrared transmitter is mounted on the touch frame PCBA within one of the two opposing frames of the interactive tablet, while an infrared receiver is mounted on the touch frame PCBA within the other frame. These infrared transmitters and receivers form an infrared detection network on the interactive tablet. Touching an object (such as a finger) modifies the infrared radiation at the touch point, which is then converted into the coordinates of the touch point, enabling a response.

[0057] To filter the light from the infrared transmitter and receiver, the interactive flat panel also features a filter strip on the frame to remove stray light. Specifically, traditional interactive flat panels have a snap-in slot on the frame, into which the filter strip is mounted. The filter strip has mounting slots, into which the glass substrate of the display module fits, thereby being clamped by the filter strip. The back panel of the interactive flat panel overlaps the frame and is screwed to the frame's supporting surface.

[0058] However, during the assembly process of traditional interactive flat panels, the filter strips need to be clipped into the smaller clipping slots of the aluminum profile, which is inconvenient to install. In addition, the glass substrate is limited by the clamping effect of the filter strips alone, which makes the glass substrate unstable and easily fall out of the filter strips.

[0059] To solve the above-mentioned problems, the present application provides an interactive flat panel (not shown), as shown in Figures 1-8. The interactive flat panel includes a frame 1, a back panel 21, a glass substrate 22, a filter bar 3, and a glass pressing block 5. The filter bar 3 is arranged in the internal cavity of the frame 1, and a portion of the filter bar 3 extends into the opening 10 of the frame 1 to be limited and cooperate with the support portion 111 in the height direction of the frame 1, thereby achieving installation of the filter bar 3 and preventing deformation of the frame 1; the glass substrate 22 extends into the opening 10 of the frame 1 and is installed on the portion of the filter bar 3 located in the opening 10; the fixed end 501 of the glass pressing block 5 is fixed to the support portion 111, and the abutting end 502 of the glass pressing block 5 abuts against the glass substrate 22; the back panel 21 is fixed to the end surface of the fixed end 501 of the glass pressing block 5 away from the support portion 111, thereby limiting the glass substrate 22 and preventing the glass substrate 22 from falling out of the filter bar 3, thereby making the installation of the glass substrate 22 more stable.

[0060] It should be noted that the interactive tablet involved in the present invention can be an electronic device with functions such as writing, annotation, drawing, multimedia entertainment and online conferencing. The interactive tablet 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, and graphic interactive demonstrations.

[0061] The specific structure of the interactive tablet is described below with reference to specific embodiments.

[0062] Referring to Figures 1-8 , the frame 1 is disposed along the circumferential sides of the back panel 21 and the glass substrate 22. The frame 1 includes a first plate 113 and a second plate 114 disposed along the height direction of the frame 1. The height direction of the frame 1 is indicated by the arrow Z in Figures 5 and 7 . The first and second plates 113, 114 form the boundaries of the internal cavity of the frame 1. A support portion 111 is formed at one end of the first plate 113 near the glass substrate 22. An opening 10 is formed between the support portion 111 and the second plate 114, providing communication with the internal cavity of the frame 1.

[0063] The filter strip 3 is disposed within the internal cavity of the frame 1, and a portion of the filter strip 3 extends into the opening 10 to engage with the support portion 111 in the height direction of the frame 1. The glass substrate 22 extends into the opening 10 and is mounted on the portion of the filter strip 3 located in the opening 10. The fixed end 501 of the glass block 5 is fixed to the support portion 111, and the abutting end 502 of the glass block 5 abuts against the glass substrate 22. The back plate 21 is fixed to the end surface of the fixed end 501 of the glass block 5 away from the support portion 111.

[0064] The filter strip 3 is installed within the internal cavity of the frame 1, and the filter strip 3 can be limited in position by the internal cavity of the frame 1, thereby achieving installation of the filter strip 3. Since the glass block 5 is installed on the support portion 111, and the back plate 21 is installed on the end surface of the filter strip 3 at the fixed end 501 of the glass block 5 away from the support portion 111, the frame 1 is prone to deformation during assembly. By limiting the support portion 111 in the height direction of the frame 1, the deformation of the support portion 111 can be reduced, and the stability of the support portion 111 supporting the glass block 5 and the back plate 21 can be improved.

[0065] In some embodiments, the shape of the filter strip 3 is adapted to the cavity structure of the frame 1, and the filter strip 3 is laterally inserted into the frame 1. Compared with the prior art method of snap-fitting the filter strip 3 to the frame 1, the assembly of the filter strip 3 of the present invention is simpler and more convenient.

[0066] Please refer to Figure 5, which is a schematic diagram of a partial structure of an interactive tablet in an embodiment of the present invention. In some embodiments, a receiving cavity 30 is provided inside the filter bar 3, and the interactive tablet further includes a touch frame 4, which is inserted into the receiving cavity 30.

[0067] Specifically, along the height direction of the frame 1, two opposite cavity walls in the accommodating cavity 30 are provided with sliding grooves, and the touch frame 4 is embedded in the two oppositely arranged sliding grooves to achieve convenient installation and positioning of the touch frame 4. The touch frame 4 includes a touch frame PCBA and an infrared emitting / infrared receiving element provided on the touch frame PCBA. An infrared emitting element is provided on the touch frame PCBA in one of the two opposite frames 1 of the interactive tablet, and an infrared receiving element is provided on the touch frame PCBA in the other frame 1. The infrared emitting element and the infrared receiving element form an infrared detection network on the interactive tablet. The object of the touch operation (such as a finger) can change the infrared light of the contact point, which is then converted into the coordinate position of the touch to achieve the response of the operation.

[0068] Compared to traditional interactive tablets, where the touch frame is mounted directly on the frame, the touch frame is more likely to scratch the circuitry during assembly, causing short circuits. Since the filter strip 3 is typically extruded and made of a soft, insulating material, this application inserts the touch frame 4 into the filter strip 3. This not only improves the sealability of the touch frame 4 during installation, but also makes it less likely to scratch the circuitry during assembly, reducing the probability of short circuits.

[0069] Specifically, referring to Figures 5 and 7 , Figure 7 is a cross-sectional view of the filter strip 3 in an embodiment of the present invention. In some embodiments, a slide groove is provided on both the top and bottom walls of the accommodating cavity 30. The slide groove located on the top wall of the accommodating cavity 30 is a first slide groove 35, and the slide groove located on the bottom wall is a second slide groove 36. The top of the touch frame 4 is confined within the first slide groove 35, and the bottom of the touch frame 4 is confined within the second slide groove 36. The provision of the first slide groove 35 and the second slide groove 36 can limit and secure the touch frame 4, facilitating installation of the touch frame 4 while also preventing it from moving around.

[0070] 7 , in some embodiments, the first slide groove 35 and the second slide groove 36 are both set through the end of the filter bar 3, so that the touch frame 4 can be inserted into the accommodating cavity 30 through the end of the filter bar 3, which is convenient for installation.

[0071] Further, referring to Figure 5 , the portion of the filter strip 3 that extends into the opening 10 is provided with an embedding groove 31, into which the glass substrate 22 is inserted. Thus, the embedding groove 31 can limit and secure the glass substrate 22. During assembly, the fixing end 501 of the glass pressing block 5 is fixed to the support portion 111, and the abutting end 502 of the glass pressing block 5 abuts against the glass substrate 22. At this point, the glass substrate 22 is not only limited and secured by the embedding groove 31, but also abutted and secured by the glass pressing block 5 in the height direction of the frame 1, thereby enhancing the stability of the assembly of the glass substrate 22 and reducing the risk of the glass substrate 22 falling off the filter strip 3.

[0072] In some embodiments, the frame 1 is formed from sheet metal by stamping and rolling, with fewer processing steps and a short delivery cycle. The prepared frame 1 has a simple structure and relatively low cost.

[0073] As shown in FIG6 , FIG6 is a cross-sectional view of the frame body in an embodiment of the present invention. In some embodiments, the frame 1 further includes a panel 112, which is connected between the first plate 113 and the second plate 114 and is arranged to form a cavity structure (not shown). The end of the first plate 113 away from the panel 112 forms a support portion 111. The frame 1 is integrally formed by sheet metal stamping and rolling. Since the frame 1 is surrounded by the panel 112, the first plate 113 and the second plate 114, a semi-enclosed structure with an opening 10 is formed. The structure is relatively simple, and the semi-enclosed structure is relatively easy to prepare.

[0074] In some embodiments, the enclosure 112 , the first plate 113 , the second plate 114 and the support portion 111 are integrally formed. The frame 1 as an integral structure does not need to be assembled, and the integral structure of the frame 1 has a higher supporting strength.

[0075] In addition, the outer surface formed by the enclosure 112, the first plate body 113 and the second plate body 114 serves as the appearance and shape of the product. The surface treatment uses a powder spraying process, which does not produce sewage during the treatment process and is more environmentally friendly. The specific powder spraying process belongs to the existing technology and will not be repeated here.

[0076] Further, please refer to Figure 6, which is a cross-sectional view of the frame body in an embodiment of the present invention. In some embodiments, the support portion 111 includes a limiting segment 1111 and a supporting segment 1112. The limiting segment 1111 and the supporting segment 1112 are arranged at an angle. The limiting segment 1111 extends along the height direction of the frame 1, and the supporting segment 1112 extends in a direction away from the internal cavity of the frame 1; the supporting segment 1112 and the first plate 113 are spaced apart along the height direction of the frame 1 to form an opening 10, and the fixed end 501 of the glass block 5 is fixed to the supporting segment 1112. The filter strip 3 and the supporting segment 1112 are limited in the height direction of the frame 1, and the limiting segment 1111 can play a role in limiting the back panel 21.

[0077] It should be noted that the angle formed between the limiting section 1111 and the supporting section 1112 should not include the cases of 0° and 180°, because when the angle formed between the limiting section 1111 and the supporting section 1112 is 0° and 180°, the supporting section 1112 cannot achieve the function of supporting the back panel 21 and the glass pressing block 5 in the height direction of the frame 1.

[0078] Referring to Figure 6 , in some embodiments, the limiting segment 1111 and the supporting segment 1112 are arranged perpendicularly to form an L-shaped structure. In this way, the supporting segment 1112 can support the back panel 21 and the glass pressing block 5 in the height direction of the frame 1. Of course, in other embodiments, the limiting segment 1111 and the supporting segment 1112 can form an acute angle or an obtuse angle. As long as the supporting portion 111 formed by the angle between the limiting segment 1111 and the supporting segment 1112 can support the glass pressing block 5, it will be sufficient. This will not be described in detail here.

[0079] As shown in Figures 5 and 7, the filter strip 3 is provided with a limiting notch 32 recessed into the interior of the accommodating cavity 30. The support portion 111 extends into the limiting notch 32 and cooperates with the limiting notch 32 to limit the height of the frame 1. Since the back panel 21 is fixed to the support portion 111 via the fixed end 501 of the glass block 5, a certain force is exerted on the support portion 111, thereby causing the support portion 111 and even the frame 1 to deform. The limiting notch 32 can limit the support portion 111, thereby reducing the deformation of the support portion 111 and even the frame 1, thereby improving the stability of the installation of the back panel 21.

[0080] It is understandable that, in order to improve the fit between the limiting notch 32 and the support portion 111 , in some embodiments, the shape and structure of the limiting notch 32 is configured to fit the support portion 111 .

[0081] For example, please refer to Figure 5. In this embodiment, the limiting notch 32 is a 90° L-shaped notch, and the limiting section 1111 and the supporting section 1112 are vertically arranged, and the formed supporting portion 111 also has an L-shaped structure. In this way, the supporting portion 111 can be adapted to the limiting notch 32, thereby ensuring that the limiting notch 32 can be limitedly matched with the supporting portion 111 in the height direction of the frame 1.

[0082] Of course, in some other embodiments, the limiting notch 32 can also be a notch of other shapes. It only needs to match the shape and structure between the limiting notch 32 and the supporting portion 111, so that the limiting notch 32 can support the supporting portion 111 in the height direction of the frame 1. We will not go into details here.

[0083] In some embodiments, the filter strip 3 is made of PC (Polycarbonate) material through extrusion molding. This material is soft and insulating. When the touch frame 4 is installed in the filter strip 3, it can prevent the circuit on the touch frame 4 from being scratched during the assembly process of the touch frame 4. At the same time, the filter strip 3 itself is insulated, which can also reduce the probability of short circuiting of the touch frame 4 when it is scratched.

[0084] 5 , in some embodiments, to facilitate installation of the glass substrate 22 , the notch of the embedding groove 31 is disposed toward the back panel 21 and the glass substrate 22 . The embedding groove 31 is a U-shaped structure, which enables the glass substrate 22 to be overlapped to securely install the glass substrate 22 .

[0085] Of course, in some other embodiments, the embedding groove 31 may also be in other shapes, as long as the embedding groove 31 can accommodate the glass substrate 22 for positioning and fixing, which will not be elaborated here.

[0086] 5 , further, a guiding slope 33 is provided at the notch of the embedding groove 31 . The guiding slope 33 is used to guide the glass substrate 22 into the embedding groove 31 , so as to facilitate smooth installation of the glass substrate 22 .

[0087] In some embodiments, in order to facilitate the assembly of the glass substrate 22, the slot of the embedding groove 31 is set to be open. In other words, the diameter of the guide slope 33 is continuously increased along the direction from the bottom of the slot to the insertion opening of the slot. This not only guides the installation of the glass substrate 22, but also the guide slope 33 is located on the inner side of the glass substrate 22, which has a more beautiful appearance.

[0088] On the basis of any of the aforementioned embodiments, referring to FIG5 , the filter strip 3 has a light emitting surface 34 on one side of the embedding groove 31. Along the height direction of the frame 1, the light emitting surface 34 is located below the embedding groove 31. The angle a between the light emitting surface 34 and the glass substrate 22 is 90°<a<180°. This angle range is an obtuse angle, which plays a role in reflecting interference signals to counteract signal interference, thereby playing a role in reducing interference signals.

[0089] Optionally, a may be 95°, 120°, 130°, 150° or 175°.

[0090] It is understandable that within the range of 90° < a < 180°, as angle a increases, the reflection effect on interference signals improves, and the anti-interference effect improves. However, a larger angle a results in a larger visible area of ​​the filter strip 3, a visually wider width of the frame 1, and a poor appearance. Furthermore, a larger angle a also causes the infrared signal inside the filter strip 3 to be refracted by the light-emitting surface 34, increasing the signal recognition height, thereby deteriorating the user's writing experience and making misreading more likely. Furthermore, as angle a increases, a greater proportion of the infrared signal inside the filter strip 3 is reflected back by the light-emitting surface 34, resulting in a smaller effective signal.

[0091] Therefore, based on the above considerations, the angle between the light emitting surface 34 and the glass substrate 22 is preferably in the range of 100°≤a≤120°. When a is within this range, the light emitting surface 34 can better reflect the interference signal, while avoiding the filter strip 3 from being visually wider, thereby ensuring a beautiful appearance.

[0092] Furthermore, when 100°≤a≤120°, the infrared signal inside the filter strip 3 can be avoided from being refracted by the light-emitting surface 34, thereby making the signal recognition height higher, ensuring a better writing experience and less prone to misreading; the infrared signal inside the filter strip 3 can emit a sufficient effective signal through the light-emitting surface 34.

[0093] The specific structure of the glass press block 5 will be described below with reference to the specific embodiments disclosed in Figures 10 to 13. Figure 10 is a first schematic diagram of the structure of the glass press block 5 according to an embodiment of the present invention, Figure 11 is a second schematic diagram of the structure of the glass press block 5 according to an embodiment of the present invention, Figure 12 is a third schematic diagram of the structure of the glass press block 5 according to an embodiment of the present invention, and Figure 13 is a partial enlarged view of point B in Figure 3.

[0094] 10-13 , the fixed end 501 of the glass press block 5 is provided with a fixing portion 51, which is disposed between the support portion 111 and the back plate 21 and connected to the support portion 111 and the back plate 21. The abutting end 502 of the glass press block 5 is provided with an abutting portion 52, one end of which is connected to the fixed portion 51 and the other end of which abuts against the glass substrate 22.

[0095] The back panel 21 is assembled by fixing the fixing portion 51 to the supporting portion 111 and fixing the back panel 21 to the end face of the fixing portion 51 away from the supporting portion 111. The abutting portion 52 presses against the glass substrate 22, thereby effectively fixing and limiting the glass substrate 22 and preventing the glass substrate 22 from falling out of the embedding groove 31.

[0096] It is understandable that there are many ways to fix the fixing portion 51 , the supporting portion 111 and the back plate 21 , such as by screw connection or riveting.

[0097] For example, in some embodiments, the fixing portion 51 is provided with a first connection hole 5111 and a second connection hole 5112 arranged at intervals, the support portion 111 is provided with a third connection hole (not shown in the figure) corresponding to the first connection hole 5111, and the back panel 21 is provided with a fourth connection hole (not shown in the figure) corresponding to the second connection hole 5112. The first fixing member is connected to the third connection hole through the first connection hole 5111 to connect to the fixing portion 51 and the frame 1. The second fixing member is connected to the second connection hole 5112 through the fourth connection hole to connect to the second connection hole 5112 to connect the fixing portion 51 and the back panel 21. The above connection method realizes the connection between the fixing portion 51 and the frame 1 and the fixing portion 51 and the back panel 21 respectively. The connection method is simple and the connection strength can be guaranteed. In this embodiment, the first connection hole 5111 is a through hole, the second connection hole 5112 is a threaded hole, the third connection hole is a threaded hole, and the fourth connection hole is a through hole. The first fixing member and the second fixing member are both screws.

[0098] 10 and 13 , in some embodiments, a side of the fixing portion 51 facing away from the frame 1 is provided with an escape groove 5113. The escape groove 5113 can prevent the glass pressing block 5 from interfering with the assembly of other components.

[0099] It is understandable that the size, shape and specific location of the avoidance groove 5113 can be set according to specific needs and will not be described in detail here.

[0100] Referring to FIG. 10 , in some embodiments, a plurality of reinforcing ribs 521 are provided on the abutting portion 52 . The reinforcing ribs 521 are spaced apart along the length direction of the glass block 5 . Thus, the reinforcing ribs 521 can enhance the supporting strength of the abutting portion 52 , thereby enhancing the strength of the entire glass block 5 , thereby preventing the glass block 5 from being broken due to stress.

[0101] In other embodiments, the reinforcing ribs 521 are not limited to being provided on the abutting portion 52, but may also be provided on the fixing portion 51 to enhance the support strength at the fixing portion 51. Of course, reinforcing ribs 521 may also be provided on both the fixing portion 51 and the abutting portion 52 to increase the support strength of the entire glass block 5.

[0102] It should be noted that the shape, number and specific location of the reinforcing ribs 521 are not specifically limited herein, as long as they can play a role in reinforcing the strength of the glass block 5 .

[0103] Furthermore, the fixing portion 51 includes a connecting body 511 and a support platform 512. One of the two opposing sides of the connecting body 511 is connected to the abutment portion 52, and the other side is connected to the support platform 512. The main structure 211 of the back panel 21 is covered and connected to the connecting body 511. The support platform 512 and the connecting body 511 are arranged at an angle to form a storage space, and the folded edge structure 212 of the back panel 21 extends into the storage space. The connecting body 511 supports and fixes the main structure 211 of the back panel 21. The storage space formed between the support platform 512 and the connecting body 511 is capable of accommodating the folded edge structure 212 of the back panel 21.

[0104] It should be noted that the angle formed between the support platform 512 and the connecting body 511 should not include the cases of 0° and 180°, because when the angle formed between the support platform 512 and the connecting body 511 is 0° and 180°, no accommodation space can be formed between the support platform 512 and the connecting body 511 to accommodate the folding structure 212 of the back panel 21.

[0105] Referring to FIG. 10 , in this embodiment, the support platform 512 and the connecting body 511 are vertically arranged.

[0106] Of course, in other embodiments, the support platform 512 and the connecting body 511 can also form an acute angle or an obtuse angle, as long as a storage space is formed between the support platform 512 and the connecting body 511 to accommodate the folding structure 212 of the back panel 21. No details will be given here.

[0107] 11 and 12 , in some embodiments, a positioning protrusion 5114 is provided on one of the glass block 5 and the support portion 111, and a positioning hole is provided on the other of the glass block 5 and the support portion 111. The positioning protrusion 5114 engages with the positioning hole to position the glass block 5 on the support portion 111. The engagement of the positioning protrusion 5114 with the positioning hole facilitates quick and accurate installation of the glass block 5 on the support portion 111.

[0108] 11 and 12 , in this embodiment, a positioning protrusion 5114 is provided on the fixing portion 51 , and a positioning hole is provided on the supporting portion 111 .

[0109] Of course, in other embodiments, the positioning protrusion 5114 may be provided on the supporting portion 111 , and the positioning hole may be provided on the fixing portion 51 .

[0110] As shown in Figures 3 and 5, Figure 3 is a second structural schematic diagram of the interactive flat panel in an embodiment of the present invention. In some embodiments, a plurality of glass pressing blocks 5 are provided, and the plurality of glass pressing blocks 5 are arranged in the circumference of the back plate 21 and the glass substrate 22. In this way, not only can the back plate 21 be fixed, but also the deformation of the glass substrate 22 can be better prevented.

[0111] Optionally, the glass pressing block 5 is made of a plastic material, for example, PA6+GF (PA6+GF is a nylon material, wherein PA6 represents polyamide-6 and GF represents glass fiber), PC+ABS (PC+ABS is a mixture of polycarbonate and acrylonitrile-butadiene-styrene copolymer, wherein PC represents polycarbonate and ABS represents acrylonitrile-butadiene-styrene copolymer).

[0112] As shown in Figures 8 and 9, Figure 8 is a partial enlarged view of point A in Figure 2, and Figure 9 is a schematic structural diagram of the end cover 12 in an embodiment of the present invention. In some embodiments, the interactive tablet further includes an end cover 12. The end of the frame 1 is an open structure, and the end cover 12 is sealed to the end of the frame 1 and connected to the frame 1. The provision of the end cover 12 can seal the end of the frame 1, making the appearance of the frame 1 beautiful and enhancing the supporting strength of the end of the frame 1.

[0113] Further, please continue to refer to Figure 9. The end cover 12 includes a cover body 121 and a connecting plate 122. The cover body 121 is sealed at the end of the frame 1, and the cover body 121 is connected to the frame 1; in this embodiment, the connecting plate 122 is a folding plate structure of the cover body 121, and the connecting plate 122 is vertically connected to the cover body 121. The connecting plate 122 extends into the interior of the frame 1 and is connected to the frame 1.

[0114] It can be understood that the connecting plate 122 is formed by bending one side of the cover plate body 121 , and the provision of the connecting plate 122 can enhance the overall strength of the end cover plate 12 .

[0115] Referring to Figure 9, in some embodiments, a first fixing hole 1211 is provided on the cover plate body 121, and a second fixing hole is provided on the frame 1. In this embodiment, the first fixing hole 1211 is a through hole, and the second fixing hole is a threaded hole. A screw is passed through the first fixing hole 1211 and is threadedly connected to the second fixing hole to achieve the connection between the cover plate body 121 and the frame 1; a third fixing hole 1221 is provided on the connecting plate 122, and a fourth fixing hole is provided on the surrounding plate 112 of the frame 1. In this embodiment, the third fixing hole 1221 is a threaded hole, and the fourth fixing hole is a through hole. A screw is passed through the fourth fixing hole on the outside of the frame 1 and is threadedly connected to the third fixing hole 1221, thereby enhancing the strength of the end of the frame 1. In other embodiments, the connection method between the end cover plate 12 and the frame 1 is not limited to the above connection method, and can also be other methods, as long as the connection between the end cover plate 12 and the frame 1 can be achieved.

[0116] It should be noted that the side of the cover body 121 is provided with a step structure, which is an adaptability improvement made for the specific structure of the filter strip 3. The size and shape of the cover body 121 can be adjusted according to the specific usage and are not specifically limited here.

[0117] Note that the above are only preferred embodiments of the present application and the technical principles employed. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present application. The scope of the present application is determined by the scope of the appended claims.

Claims

1. An interactive tablet, characterized in that: include: A glass substrate (22); A frame (1), the frame (1) being arranged on a side of the glass substrate (22), the frame (1) comprising a first plate (113) and a second plate (114) arranged along a height direction of the frame (1), the first plate (113) and the second plate (114) being configured as boundaries of an internal cavity of the frame (1), a support portion (111) being formed at one end of the first plate (113) close to the glass substrate (22), an opening (10) being arranged between the support portion (111) and the second plate (114) to communicate with the internal cavity of the frame (1); A filter bar (3), the filter bar (3) being arranged in the internal cavity of the frame (1), and part of the filter bar (3) extending into the opening (10) to be positionally matched with the support portion (111) in the height direction of the frame (1), and the glass substrate (22) extending into the opening (10) and being mounted on the part of the filter bar (3) located in the opening (10); A glass pressing block (5) and a back plate (21), wherein a fixed end (501) of the glass pressing block (5) is fixedly arranged on the supporting portion (111), a supporting end (502) of the glass pressing block (5) is supported on the glass substrate (22), and the back plate (21) is fixedly arranged on an end surface of the fixed end (501) of the glass pressing block (5) away from the supporting portion (111).

2. The interactive tablet according to claim 1, characterized in that: The filter strip (3) is provided with a receiving cavity (30) inside, and the interactive tablet further comprises a touch frame (4), and the touch frame (4) is plugged into the receiving cavity (30).

3. The interactive tablet according to claim 2, characterized in that: Along the height direction of the frame (1), two opposite cavity walls in the accommodating cavity (30) are provided with sliding grooves, and the touch frame (4) is embedded in the two oppositely arranged sliding grooves.

4. The interactive tablet according to claim 2, characterized in that: The filter strip (3) is provided with a limiting notch (32) recessed toward the interior of the accommodating cavity (30), and the supporting portion (111) extends into the limiting notch (32) to cooperate with the limiting notch (32) in a height direction of the frame (1).

5. The interactive tablet according to any one of claims 1 to 4, characterized in that: The portion of the filter strip (3) extending into the opening (10) is provided with an embedding groove (31), and the glass substrate (22) is inserted into the embedding groove (31).

6. The interactive tablet according to claim 5, characterized in that: A guide slope (33) is formed on the groove wall of the embedding groove (31) at the groove opening, and the guide slope (33) is used to guide the glass substrate (22) to extend into the embedding groove (31).

7. The interactive tablet according to claim 5, characterized in that: The filter strip (3) has a light emitting surface (34) on one side of the embedding groove (31); along the height direction of the frame (1), the light emitting surface (34) is located below the embedding groove (31); the angle between the light emitting surface (34) and the glass substrate (22) is a, 90°<a<180°.

8. The interactive tablet according to claim 7, characterized in that: 100°≤a≤120°。 9. The interactive tablet according to any one of claims 1 to 4, characterized in that: The support portion (111) comprises a limiting section (1111) and a supporting section (1112); the limiting section (1111) and the supporting section (1112) are arranged at an angle; the limiting section (1111) extends along the height direction of the frame (1); and the supporting section (1112) extends along a direction away from the internal cavity of the frame (1); The support section (1112) and the first plate (113) are arranged at intervals along the height direction of the frame (1) to form the opening (10); the fixed end (501) of the glass pressing block (5) is fixed to the support section (1112); and the filter strip (3) and the support section (1112) are limitedly matched along the height direction of the frame (1).

10. The interactive tablet according to claim 9, characterized in that: The limiting section (1111) and the supporting section (1112) are perpendicular to each other.

11. The interactive tablet according to any one of claims 1 to 4, characterized in that: The interactive flat panel further comprises an end cover plate (12), wherein the end cover plate (12) is sealed at the end of the frame (1).

12. The interactive tablet according to claim 11, characterized in that: The end cover plate (12) comprises: A cover plate body (121), the cover plate body (121) being sealed at an end of the frame (1) and connected to the frame (1); and A connecting plate (122), wherein the connecting plate (122) is vertically connected to the cover plate body (121), and the connecting plate (122) extends into the interior of the frame (1) and is connected to the frame (1).

13. The interactive tablet according to any one of claims 1 to 4, characterized in that: The fixed end (501) of the glass pressing block (5) is provided with a fixing portion (51), and the fixing portion (51) is arranged between the supporting portion (111) and the back plate (21), and is connected to the supporting portion (111) and the back plate (21); and The abutting end (502) of the glass pressing block (5) is provided with an abutting portion (52), one end of the abutting portion (52) is connected to the fixing portion (51), and the other end of the abutting portion (52) abuts against the glass substrate (22).

14. The interactive tablet according to claim 13, characterized in that: The fixing portion (51) is provided with a first connection hole (5111) and a second connection hole (5112), the supporting portion (111) is provided with a third connection hole corresponding to the first connection hole (5111), and the back plate (21) is provided with a fourth connection hole corresponding to the second connection hole (5112); The first fixing member is passed through the first connection hole (5111) to connect with the third connection hole, so as to connect the fixing portion (51) to the frame (1); and the second fixing member is passed through the fourth connection hole to connect with the second connection hole (5112), so as to connect the fixing portion (51) to the back plate (21).

15. The interactive tablet according to claim 14, characterized in that: The fixing portion (51) and / or the abutting portion (52) are provided with reinforcing ribs (521).

16. The interactive tablet according to claim 14, characterized in that: The fixing portion (51) comprises: A connecting body (511) and a supporting platform (512), wherein one side of the two opposite sides of the connecting body (511) is connected to the abutting portion (52), and the other side is connected to the supporting platform (512), and the main structure (211) of the back plate (21) The cover is provided and connected to the connecting body (511), the supporting platform (512) and the connecting body (511) are arranged at an angle to form a receiving space, and the folded edge structure (212) of the back plate (21) extends into the receiving space.

17. The interactive tablet according to any one of claims 1 to 4, characterized in that: A positioning protrusion (5114) is provided on one of the glass pressing block (5) and the supporting portion (111), and a positioning hole is provided on the other of the glass pressing block (5) and the supporting portion (111); the glass pressing block (5) is positioned and mounted on the supporting portion (111) by plugging and fitting the positioning protrusion (5114) and the positioning hole.

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