Electronic whiteboard

Abstract

The utility model provides an electronic whiteboard, and relates to the technical field of display. The electronic whiteboard comprises a display module, the display module comprises a display panel and a back plate, the back plate covers the backlight side of the display panel, the periphery of the back plate comprises a first side wall, and a preset included angle is formed between the first side wall and the display panel; the frame is fixedly connected to the periphery of the display module, and the frame comprises a first frame opposite to the first side wall; the rear shell at least partially covers the first side wall and the first frame, so that an accommodating space is defined by the rear shell, the first side wall and the first frame; the touch control assembly is mounted in the frame and surrounds the display module; the control panel is installed in the containing space and electrically connected with the touch control assembly. The electronic whiteboard is more compact in structure.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to an electronic whiteboard. Background Art

[0002] Electronic whiteboard is a new product that can display images and interact with users. When using an electronic whiteboard, users can write directly with a pen like a normal whiteboard or teaching blackboard, thus realizing paperless office and teaching. However, existing electronic whiteboards are large in size and it is not easy to make the device thin and light. Utility Model Content

[0003] The embodiments of the present disclosure provide an electronic whiteboard with a more compact structure.

[0004] To achieve the above objectives, the embodiments of the present disclosure adopt the following technical solutions:

[0005] In one aspect, an electronic whiteboard is provided, comprising:

[0006] A display module, comprising a display panel and a back plate, wherein the back plate cover is arranged on a side of the backlight assembly away from the display panel, and the periphery of the back plate comprises a first side wall, and the first side wall forms a preset angle with the display panel;

[0007] A frame, fixedly connected to the periphery of the display module, the frame comprising a first frame opposite to the first side wall;

[0008] A rear shell at least partially covers the first side wall and the first frame, so that the rear shell, the first side wall and the first frame together form an accommodating space;

[0009] A touch control component is installed inside the frame;

[0010] A control panel is installed in the accommodating space and is electrically connected to the touch control component.

[0011] In some embodiments, the electronic whiteboard further includes a bracket, one end of the bracket is connected to the back panel, the other end of the bracket is connected to the first frame, and the control board is fixedly connected to the bracket.

[0012] In some embodiments, the control board is fixedly connected to a side of the bracket away from the display panel.

[0013] In some embodiments, the control board includes a front side and a back side disposed opposite to each other, the front side is provided with a connector, the control board is electrically connected to the touch control component via the connector, and the front side faces the display panel.

[0014] In some embodiments, a region on the bracket directly facing the connector is hollowed out.

[0015] In some embodiments, the bracket includes a first connecting wall, a mounting wall, a supporting wall, and a second connecting wall connected in sequence, the first connecting wall is connected to the back panel, the second connecting wall is connected to the first frame, the control board is installed on the mounting wall, and the supporting wall separates the mounting wall from the first frame.

[0016] In some embodiments, the electronic whiteboard also includes a main board, the control board includes a first connector electrically connected to the touch component and a second connector electrically connected to the main board, and the first connector and the second connector are arranged at intervals along an extension direction of the first frame.

[0017] In some embodiments, the included angle between the control plate and the first side wall is α, 40°≤α≤50°.

[0018] In some embodiments, the electronic whiteboard further includes a signal line, the touch control component includes a connection port, one end of the signal line is electrically connected to the connection port, and the other end of the signal line is electrically connected to the control board, and the control board is disposed adjacent to the connection port.

[0019] In some embodiments, the length of the signal line is less than or equal to 450 mm.

[0020] In some embodiments, the frame further includes a second frame connected to the first frame, and the connection port is adjacent to a connection area between the first frame and the second frame.

[0021] In some embodiments, the touch component includes a sending component and a receiving component, the connection port includes a first port set in the sending component and a second port set in the receiving component, one of the first port and the second port is set in the first frame, and the other is set in the second frame.

[0022] In some embodiments, a cavity is provided inside the first frame, and part of the structure of the sending component and the first port are arranged in the cavity. A hollow area is provided on the side wall of the first frame facing the display panel, and a hollow area is provided in an area opposite to the first port. The signal line includes a first signal line, one end of the first signal line is electrically connected to the control board, and the other end of the first signal line penetrates into the cavity through the hollow area and is electrically connected to the first port.

[0023] In some embodiments, the receiving component and the second port are arranged in the second frame, the side wall of the first frame facing the rear shell is provided with an avoidance groove, the signal line includes a second signal line, one end of the second signal line is electrically connected to the control board, the second end of the second signal line is electrically connected to the second port, and the second signal line between the first end and the second end extends along the first frame and passes through the avoidance groove.

[0024] In some embodiments, the electronic whiteboard further includes a front board assembly, the front board assembly is connected to the first frame, and the control board is installed on a side of the front board assembly away from the corner area.

[0025] In some implementations, with the electronic whiteboard facing the user as a reference, the frame includes an upper frame, a lower frame, a left frame, and a right frame, and the first frame is the lower frame.

[0026] In another aspect, an electronic whiteboard is provided, comprising:

[0027] A display module, comprising a display panel and a back plate, wherein the back plate cover is arranged on a side of the backlight assembly away from the display panel, and the periphery of the back plate comprises a first side wall, and the first side wall forms a preset angle with the display panel;

[0028] A frame, fixedly connected to the periphery of the display module, the frame comprising a first frame opposite to the first side wall;

[0029] A touch control component is installed inside the frame;

[0030] A bracket, one end of which is connected to the back plate, and the other end of which is connected to the first frame;

[0031] A control panel is mounted on the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 An application scenario diagram of an electronic whiteboard provided in an embodiment of the present disclosure;

[0034] Figure 2 A front view of an electronic whiteboard provided in an embodiment of the present disclosure;

[0035] Figure 3An exploded view of an electronic whiteboard provided in an embodiment of the present disclosure;

[0036] Figure 4 for Figure 2 The rear view of the area corresponding to the lower left corner of the electronic whiteboard;

[0037] Figure 5 for Figure 4 The cross-sectional view of BB in

[0038] Figure 6 for Figure 2 A cross-sectional view of AA;

[0039] Figure 7 for Figure 2 Another cross-sectional view of AA in ;

[0040] Figure 8 for Figure 4 Another cross-sectional view of BB;

[0041] Fig. 9 Schematic diagram of the control panel and the bracket connected in the embodiment of the present disclosure Figure 1 ;

[0042] Fig.10 Schematic diagram of the control panel and the bracket connected in the embodiment of the present disclosure Figure 2 ;

[0043] Fig.11 This is a schematic diagram of the process of connecting the control panel and the bracket in the embodiment of the present disclosure;

[0044] Fig.12 It is a partial structural exploded diagram of an electronic whiteboard in an embodiment of the present disclosure;

[0045] Fig.13 for Fig.12 A local enlarged view of position I in FIG.

[0046] Fig.14 for Figure 4 Another cross-sectional view of BB;

[0047] Fig.15 It is a partial structural exploded diagram of an electronic whiteboard in an embodiment of the present disclosure;

[0048] Fig.16 is a schematic diagram of the first frame;

[0049] Fig.17 for Fig.16 A local enlarged view of position II;

[0050] Fig.18 A cross-sectional view of the first frame and the sending assembly after assembly;

[0051] Fig.19 is a schematic diagram of the second frame;

[0052] Fig. 20 for Fig.19 A local enlarged view of location III;

[0053] Fig.21 A cross-sectional view of the second frame and the receiving assembly after assembly;

[0054] Fig. 22 A partial structural exploded diagram of an electronic whiteboard in the implementation of the present disclosure;

[0055] Fig.23 A schematic diagram of a partial structure of an electronic whiteboard in an embodiment of the present disclosure;

[0056] Fig.24 for Fig.23 A partial enlarged view of position VII;

[0057] Fig.25 It is a partial structural diagram of an electronic whiteboard in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0059] In the embodiments of the present disclosure, words such as "first", "second", "third", and "fourth" are used to distinguish between identical or similar items with substantially the same functions and effects. This is only for the purpose of clearly describing the technical solutions of the embodiments of the present disclosure and shall not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0060] In the embodiments of the present disclosure, “plurality” means two or more than two, and “at least one” means one or more than one, unless otherwise clearly and specifically defined.

[0061] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper" and "lower" etc. is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0062] The embodiments of the present disclosure provide an electronic whiteboard, which can be used in various scenarios, such as conferences, teaching, etc., for displaying images and interacting with users. Figure 1 This is an application scenario diagram of an electronic whiteboard provided by an embodiment of the present disclosure. Figure 1 As shown, the electronic whiteboard 100 can be used in a conference room to display the content to be discussed in the meeting.

[0063] Figure 2 This is a front view of an electronic whiteboard provided by an embodiment of the present disclosure. Figure 2 As shown, the electronic whiteboard 100 includes a display module 10, and the display module 10 can display images, whether they are moving (e.g., video) or fixed (e.g., still pictures), and whether they are text or pictures. For example, when the electronic whiteboard 100 is applied to a conference scene, the display module 10 can display slides, meeting minutes, etc., and when the electronic whiteboard 100 is applied to a teaching scene, the display module 10 can display texts, demonstration animations, etc.

[0064] The display module 10 includes a display panel. The display panel may be a liquid crystal display panel (Liquid Crystal Display, LCD for short); the display panel may also be an electroluminescent display panel or a photoluminescent display panel. In the case where the display panel is an electroluminescent display panel, the electroluminescent display panel may be an organic light-emitting diode (OLED for short) display panel or a quantum dot light-emitting diode (QLED for short) display panel or a micro light-emitting diode (Micro LED for short), etc. In the case where the display panel is a photoluminescent display panel, the photoluminescent display panel may be a quantum dot photoluminescent display panel. The embodiment of the present disclosure is described by taking the display panel as a liquid crystal display panel as an example.

[0065] Figure 3 This is an exploded view of an electronic whiteboard provided by an embodiment of the present disclosure. Figure 2 and Figure 3 As shown, the display module 10 may include a display panel 12 and a backlight assembly. The display panel 12 includes a light-emitting surface for displaying an image and a backlight surface opposite to the light-emitting surface. The backlight assembly is connected to the backlight surface of the display panel 12. The backlight assembly includes a backlight plate (not shown in the figure) and a back plate 13. The backlight plate is connected to the backlight surface of the display panel 12 to provide a light source for the display panel 12. The back plate 13 is covered on a side of the backlight plate away from the display panel 12 to protect the backlight plate.

[0066] The back plate 13 can be made of metal sheets such as aluminum alloy, stainless steel, galvanized steel plate, etc. through a stamping process. The surface of the back plate 13 is provided with concave and convex shapes to increase the rigidity of the back plate 13 to protect the backlight plate and the display panel 12.

[0067] Figure 4 for Figure 2 The rear view of the area corresponding to the lower left corner of the electronic whiteboard. Figure 5 for Figure 4 The cross-sectional view of BB in . Figure 4 and Figure 5 As shown, the back panel 13 may include a bottom wall 132 and a first side wall. The bottom wall 132 is located on the side of the backlight panel away from the display panel 12. The first side wall 131 is connected to the periphery of the bottom wall 132 and is fixedly connected to the periphery of the backlight panel, so that the back panel 13 as a whole is in the shape of a basin that is concave in the direction away from the display panel 12.

[0068] Continue to refer Figure 5 The first side wall 131 and the display panel 12 form a preset angle β, so that the back panel 13 and the display panel 12 enclose a space for installing the backlight panel. The embodiment of the present disclosure does not limit the specific value of the preset angle β, such as 90°, 80°, 60°, 45°, 30°, etc.

[0069] Continue to refer Figure 3 In actual application, the electronic whiteboard 100 may further include a board assembly 70, which may be connected to a side of the back panel 13 away from the display panel 12. The board assembly 70 may include a main board of the electronic whiteboard 100, a main control board of the display panel 12, etc., and may also include a network cable interface, a video input interface, a video output interface, a USB interface, etc.

[0070] Continue to refer Figure 3 In practical application, the display module 10 may further include a cover plate 11, which is connected to the light-emitting surface of the display panel 12 to protect the display panel 12. The cover plate 11 may be a rigid cover plate or a flexible cover plate, and may be a single-layer structure or a multi-layer structure formed by stacking a plurality of film layers. When the display module 10 is a flexible display module, the cover plate 11 may be a flexible cover plate. For example, when the cover plate is a single-layer structure, the cover plate 11 may be a glass cover plate with a relatively thin thickness, or a single-layer transparent polymer layer such as a single-layer PI or a single-layer PET; when the cover plate is a multi-layer structure, in the direction away from the substrate, the cover plate 11 includes a first organic layer, an ultra-thin glass layer, and a second organic layer stacked in sequence, wherein the adjacent two layers are optically bonded, and the first organic layer and the second organic layer are transparent organic materials. When the display module 10 is a rigid display module, the cover plate 11 may be a rigid cover plate, such as a thick glass.

[0071] Continue to refer Figure 2 and Figure 3 The electronic whiteboard 100 further includes a frame 20 , which is fixedly connected to the periphery of the display module 10 to support and protect the display module 10 .

[0072] Exemplarily, the frame 20 is rectangular as a whole. Taking the electronic whiteboard 100 as a reference when facing the user, the frame may include an upper frame, a lower frame, a left frame and a right frame. The upper frame is connected to the upper edge of the display module 10, the lower frame is connected to the lower edge of the display module 10, the left frame is connected to the left edge of the display module 10, and the right frame is connected to the right edge of the display module 10.

[0073] In actual application, the upper frame, the lower frame, the left frame and the right frame can be made of long strips of profiles (such as aluminum profiles) and connected end to end to form the frame 20. The cross-sections of the upper frame, the lower frame, the left frame and the right frame can be the same or different. For example, the cross-section of the lower frame is larger than the cross-section of other parts of the frame 20 to facilitate the installation of various signal interfaces, such as a front USB interface, on the lower frame.

[0074] Continue to refer Figure 5 , the portion of the frame 20 that is disposed opposite to the first side wall 131 is the first frame 21. The relative arrangement here means that the first side wall 131 and the first frame 21 are disposed adjacent to each other and extend in substantially the same direction. For example, when the first frame 21 is the lower frame, the first frame 21 extends along Figure 2 The first side wall 131 is a side wall of the back plate 13 close to the lower frame. The first side wall 131 is substantially along the Figure 2 Extends in horizontal direction.

[0075] Continue to refer Figure 4 and Figure 5 The electronic whiteboard 100 may further include a rear shell 40, which is located on the back of the electronic whiteboard 100 and is used to protect the components covered by the rear shell 40. The rear shell 40 may be an integral structure or may be composed of multiple parts.

[0076] For example, Figure 4 As shown, the rear housing 40 includes a first sub-housing 40 a and a second sub-housing 40 b . The first sub-housing 40 a covers the lower left corner of the electronic whiteboard 100 , and the second sub-housing 40 b covers the lower edge of the electronic whiteboard 100 .

[0077] Continue to refer Figure 5 The rear shell 40 at least partially covers the first side wall 131 and the first frame 21, so that the rear shell 40, the first side wall 131 and the first frame 21 together enclose the accommodating space 1 ( Figure 5 The inverted trapezoidal area pointed by arrow 1 in the figure).

[0078] Exemplarily, the cross section of the rear housing 40 is L-shaped, including a first wall 41 and a second wall 42, wherein the first wall 41 is connected to the first frame 21, and the second wall 42 is connected to the back plate 13. For example, the first wall 41 is connected to the first frame 21 by screws, and the second wall 42 is connected to the back plate 13 by screws.

[0079] It should be noted that the embodiment of the present disclosure does not limit the shape of the accommodating space 1, which can be Figure 5 The inverted trapezoid shown in the figure may also be other shapes, and the shape of the accommodating space 1 is related to the shape of the back plate 13 and the shape of the rear shell 40. For example, when the first side wall 131 of the back plate 13 and the display panel 12 are at a right angle to the preset angle β, and the cross section of the rear shell 40 is "L" shaped, the rear shell 40, the first side wall 131 and the first frame 21 together enclose a substantially rectangular accommodating space 1.

[0080] In actual application, the rear shell 40 can be made of metal plates such as aluminum alloy, stainless steel, galvanized steel plate, etc. through a stamping process.

[0081] Continue to refer Figure 3 In order to realize the interaction between the electronic whiteboard 100 and the user, the electronic whiteboard 100 further includes a touch component 30, which can identify the user's touch operation on the display module 10, such as identifying the user's touch position and touch time. In the embodiment of the present disclosure, the touch component 30 is introduced as an infrared touch component. When the touch component 30 is an infrared touch component, the touch component 30 includes two structural forms: direct and reflective.

[0082] Figure 6 for Figure 2 A cross-sectional view of AA in Figure 6 The touch control assembly 30 is shown as a direct-type structure. Figure 6 The straight line with an arrow in the figure represents infrared light. Figure 6 As shown, the touch component 30 includes a sending component 31 and a receiving component 32, and the sending component 31 and the receiving component 32 are both arranged in the frame 20, and the sending component 31 and the receiving component 32 are arranged opposite to each other. When working, the sending component 31 emits infrared light, and the infrared light propagates along the side of the outgoing light of the cover plate 11 and is received by the receiving component 32. When the user's finger or stylus is placed in the propagation path of the infrared light, the infrared light is blocked, and the receiving component 32 cannot receive the infrared light, thereby recognizing the user's touch operation. In actual application, an optical lens 33 can also be provided on the frame 20, and the optical lens 33 is located in the propagation path of the infrared light.

[0083] Exemplarily, the sending component 31 is provided with a plurality of infrared lamp beads, which are arranged at intervals along one side of the display module 10. Correspondingly, the receiving component 32 is provided with a plurality of infrared sensors, which are arranged at intervals along another side of the display module 10, and the infrared lamp beads correspond to the infrared sensors one by one. The position of the touch operation is determined according to the position of the infrared sensor that cannot receive infrared light.

[0084] Continue to refer Figure 6 The infrared lamp beads and infrared sensors of the direct touch component are both located on one side of the outgoing light of the cover plate 11. Since the infrared lamp beads and the infrared sensor have a certain volume, the gap between the infrared light and the cover plate 11 is large. When the user's finger or stylus does not touch the cover plate 11, the receiving component 32 has already recognized the touch operation and made feedback, resulting in a poor touch experience for the user.

[0085] In order to solve the above problems, a reflective touch component is proposed. Figure 7 for Figure 2 Another cross-sectional view of AA in Figure 7 The touch control component 30 is shown to be a reflective structure. Figure 7 The arrowed line in the figure represents infrared light. Figure 7 As shown, the touch control component 30 may further include a reflective lens 34. The sending component 31 sends infrared light toward the reflective lens 34 in a direction perpendicular to the cover plate 11. The infrared light is reflected by the reflective lens 34 and propagates along one side of the outgoing light of the cover plate 11. The infrared light is reflected by the reflective lens 34 and then is received by the receiving component 32. Figure 5 It can be seen that the sending component 31 and the receiving component 32 can be located on the side of the cover plate 11 facing the display panel, that is, the infrared lamp beads and the infrared sensor are located on the side of the cover plate 11 facing the display panel, and the position of the reflective lens 34 can be adjusted to make the distance between the infrared light and the cover plate 11 closer, thereby improving the user's touch experience.

[0086] For example, continue to refer to Figure 7 , an optical amplifying film 35 may also be provided in the propagation path of the infrared light. For example, an optical amplifying film 35 is provided on the side close to the sending component 31, and an optical amplifying film 35 is also provided on the side close to the receiving component 32.

[0087] When the touch component 30 is a direct touch component, the touch component 30 can be directly electrically connected to the main board of the electronic whiteboard 100 through a signal line to transmit the touch signal through the transmission line. When the touch component 30 is a reflective touch component, since the touch recognition method of the reflective touch component is more complicated, the electronic whiteboard 100 also includes a control board, which is electrically connected to the touch component 30 through a signal line, and the control board is electrically connected to the main board of the electronic whiteboard 100, thereby increasing the computing power of touch operation recognition and reducing the touch operation recognition delay.

[0088] Figure 8 for Figure 4 Another cross-sectional view of BB in FIG. Figure 8 As shown, the control board 51 is installed in the accommodation space 1. The control board 51 is installed in the accommodation space 1 without setting a separate installation space specifically for the control board 51, so that the structure of the electronic whiteboard 100 is more compact and the volume of the electronic whiteboard 100 is reduced.

[0089] Continue to refer Figure 5 and Figure 8 The first frame 21 includes a first surface 21a away from the light emitting surface of the display module 10, the angle between the first wall 41 and the first surface 21a is a first angle A1, the angle between the second wall 42 and the first side wall 131 is a second angle A2, and the control board 51 is along the diagonal line between the first angle A1 and the second angle A2 ( Figure 5 It should be noted that, in order to facilitate the display of the accommodation space 1, Figure 5 The control board is not shown.

[0090] The control board 51 is arranged along the diagonal line, which means that the extension direction of the plane where the control board 51 is located is substantially the same as the extension direction of the diagonal line, and they may be completely overlapped or at a small angle.

[0091] In the accommodation space 1, the diagonal lengths of the first corner A1 and the second corner A2 are relatively long, and the control board 51 is arranged along the diagonal line, which can make full use of the space of the accommodation space 1, so that a larger control board 51 can be placed in the same accommodation space 1, thereby making the arrangement space of various components in the control board 51 larger. In addition, the control board 51 is arranged along the diagonal line, which can reduce the probability of interference between the control board 51 and the rear shell 40, the back plate 13 and the first frame 21 due to size errors.

[0092] The included angle between the control panel 51 and the first side wall 131 is α, and the value range of α can be: 40°≤α≤50°. Exemplarily, α is 45°, which can fully utilize the accommodating space 1.

[0093] Continue to refer Figure 8The electronic whiteboard 100 may further include a bracket 52, and the control board 51 may be connected to the bracket 52, so as to fix the control board 51. One end of the bracket 52 may be connected to the back plate 13, and the other end of the bracket 52 may be connected to the first frame 21, that is, the bracket 52 is connected to the back plate 13 and the frame 20 at the same time. The bracket 52 has the function of fixing the control board 51 and strengthening the structural strength of the electronic whiteboard 100.

[0094] The bracket 52 can be made of metal plates such as aluminum alloy, stainless steel, galvanized steel plate, etc. through a stamping process.

[0095] Fig. 9 Schematic diagram of the control panel and the bracket connected in the embodiment of the present disclosure Figure 1 , Fig.10 Schematic diagram of the control panel and the bracket connected in the embodiment of the present disclosure Figure 2 , Fig.11 FIG. 1 is a schematic diagram of the process of connecting the control panel and the bracket in the embodiment of the present disclosure. Figures 9 to 11 As shown, the control board 51 and the bracket 52 are fixedly connected by a first screw 522 , a plurality of through holes 524 are provided on the bracket 52 , and the bracket 52 is screwed to the back plate 13 or the first frame 21 through the plurality of through holes 524 .

[0096] For example, continue to refer to Fig.11 The bracket may further include a second connecting wall 523 and an avoidance hole 521 arranged opposite to the second connecting wall 523 . When installing the bracket 52 , a screw may be passed through the avoidance hole 521 and connected to the second connecting wall 523 , thereby facilitating the installation of the bracket 52 .

[0097] Fig.12 This is a partial structural exploded view of an electronic whiteboard in an embodiment of the present disclosure. Fig.13 for Fig.12 A local enlarged view of the position I in FIG. For example, Fig.12 and Fig.13 As shown, the bracket 52 is also provided with a positioning hole 525, and the back plate 13 is provided with a positioning column 133. The bracket 52 can be quickly positioned by the cooperation of the positioning hole 525 and the positioning column 133, and the installation is more convenient. The first frame 21 is provided with a second threaded hole 213, and the second screw 526 passes through the avoidance hole 521 and is connected with the second threaded hole 213, thereby connecting the connecting wall 523 and the first frame 21. The second screw 526 also passes through the through hole 524 and is threadedly connected with the first threaded hole 132 on the back plate 13.

[0098] Continue to refer Fig.11The bracket 52 may include a first connecting wall 501, a mounting wall 502, a supporting wall 503 and a second connecting wall 523 connected in sequence, wherein the first connecting wall 501 is connected to the back plate 13, the second connecting wall 523 is connected to the first frame 21, the control board 51 is mounted on the mounting wall 502, and the supporting wall 503 separates the mounting wall 502 from the first frame 21. The supporting wall 503 separates the mounting wall 502 from the first frame 21, facilitating the connection between the bracket 52 and the first frame 21.

[0099] The control board 51 can be connected to the side of the bracket 52 facing the display panel 12, or the control board 51 can be connected to the side of the bracket 52 away from the display panel 12. When the control board 51 is connected to the side of the bracket 52 away from the display panel 12, the internal space of the accommodating space 1 can be fully utilized.

[0100] The control board 51 includes a front side and a back side that are arranged opposite to each other. A connector and other electronic components are welded on the front side. The control board 51 is electrically connected to the touch control assembly 30 through the connector. For example, the control board 51 is a printed circuit board (PCB). The front side of the PCB is provided with patterns, letters, numbers and other markings, also known as a "solder mask surface" or "surface mount (SMT) surface", which is used to cover the area that does not need to be soldered, and at the same time provides protection functions such as preventing oxidation and avoiding short circuits. The back side of the PCB is called a "non-solder mask surface" or "plug-in surface", and its main function is to provide a connection line.

[0101] Fig.14 for Figure 4 Another cross-sectional view of BB in FIG. Fig.14 As shown, the back of the control board 51 can face the light-emitting surface of the display module 10. At this time, the connector and other electronic components connected to the control board 51 face the rear housing 40, making it easy for the connector and the electronic components to interfere with the rear housing 40, increasing the risk of damage to the connector and the electronic components. For example, Fig.12 In the embodiment, the electronic components on the control board 51 interfere with the rear housing 40 at c1 and c2.

[0102] Therefore, the front side of the control board 51 may face the light emitting surface of the display module 10 to prevent the connector and electronic components on the control board 51 from interfering with the rear housing 40 .

[0103] Continue to refer Fig.10The control board 51 includes a first connector 511 electrically connected to the touch component 30 and a second connector 512 electrically connected to the main board of the electronic whiteboard 100. The first connector 511 and the second connector 512 are arranged at intervals along the extension direction of the first frame 21, so that the distance between the first connector 511 and the second connector 512 is large, which facilitates the electrical connection between the control board 51 and the main board and the touch component 30.

[0104] The orthographic projection of the bracket 52 on the control board 51 is located between the first connector 511 and the second connector 5112 , that is, the area of ​​the bracket 52 opposite to the first connector 511 and the second connector 512 is hollowed out to facilitate the connection of the signal line with the first connector 511 and the second connector 512 .

[0105] For example, Fig.10 As shown, the bracket 52 is in a “Z” shape as a whole, the upper and lower ends of the bracket 52 are respectively connected to the back plate 13 and the first frame 21 , and the middle area of ​​the bracket 52 is connected to the control board 51 .

[0106] Of course, in addition to the bracket 52, the control board 51 can also be fixed by other means, for example, the control board 51 is directly connected to the back panel 13 and the first frame 21 by screws, or the control board 51 is connected to the back panel 13 and / or the first frame 21 by adhesive tape.

[0107] The touch component 30 includes a connection port, one end of the signal line is electrically connected to the connection port, and the other end of the signal line is electrically connected to the control board 51. In order to reduce the attenuation of signal strength during signal transmission between the touch component 30 and the control board 51, the control board 51 can be arranged adjacent to the connection port, thereby reducing the length of the signal line between the connection port and the control board 51.

[0108] Exemplarily, the length of the signal line is less than or equal to 450 mm.

[0109] Fig.15 FIG. 1 is a partial structural exploded view of an electronic whiteboard in an embodiment of the present disclosure. Fig.15 As shown, the frame 20 further includes a second frame 22 connected to the first frame 21 , and the connection area between the first frame 21 and the second frame 22 is a corner area of ​​the electronic whiteboard 100 .

[0110] Exemplarily, the first frame 21 is the lower frame, the second frame 22 is the left frame, and the connection area between the first frame 21 and the second frame 22 is the lower left corner area of ​​the electronic whiteboard 100. At this time, the rear shell 40 can cover the lower left corner area of ​​the electronic whiteboard 100.

[0111] The connection port is arranged adjacent to the connection area of ​​the first frame 21 and the second frame 22, and the connection port is arranged adjacent to the connection area, so that the signal line is conveniently led out from the connection port. Since the connection port is arranged adjacent to the connection area of ​​the first frame 21 and the second frame 22, and the control board 51 is arranged adjacent to the connection port, that is, the control board 51 is adjacent to the connection area of ​​the first frame 21 and the second frame 22. Among them, the connection port is adjacent to the connection area of ​​the first frame 21 and the second frame 22, which means that the distance between the connection port and the connection area of ​​the first frame 21 and the second frame 22 is small. For example, along the extension direction of the first frame 21, the first frame 21 is evenly divided into three parts, and the connection port is arranged in the part of the three parts that is closest to the second frame 22. Similarly, along the extension direction of the second frame 22, the second frame 22 is evenly divided into three parts, and the connection port is arranged in the part of the three parts that is closest to the first frame 21.

[0112] Fig.25 FIG. 1 is a partial structural diagram of an electronic whiteboard in an embodiment of the present disclosure. Fig.25 As shown, the electronic whiteboard 100 may also include a front board assembly 91, which is connected to the first frame 21, and the control board 51 is installed on a side of the front board assembly 91 away from the corner area to prevent the control board 51 from interfering with the front board assembly 91.

[0113] Exemplarily, the front board assembly 91 may be a front USB port.

[0114] Continue to refer Fig.25 The electronic whiteboard 100 may further include a speaker 92 and a reinforcing rib 93 , wherein the reinforcing rib 93 connects the first frame 21 and the back panel 13 .

[0115] When the touch component 30 is a reflective touch component, two adjacent sides of the frame 20 are installed with the sending components 31 , and the other two adjacent sides are installed with the receiving components 32 .

[0116] Exemplarily, the lower frame and the right frame of the frame 20 are installed with a sending component 31, and the sending component 31 in the lower frame is electrically connected to the sending component 31 in the right frame; the upper frame and the left frame of the frame 20 are installed with a receiving component, and the receiving component 32 in the upper frame is electrically connected to the receiving component 32 in the left frame.

[0117] The first frame 21 may be a lower frame, and the second frame 22 may be a left frame.

[0118] Fig.16 is a schematic diagram of the first frame, Fig.17 for Fig.16 The local enlarged picture of II in the figure. Fig.16 and Fig.17 As shown, the connection port includes a first port 311 provided on the sending component 31 .

[0119] Exemplarily, the sending component 31 and the first port 311 are located in the first frame 21 .

[0120] For example, Fig.17 As shown, a cavity is provided in the first frame 21, the first port 311 is arranged in the cavity, and a hollow area 211 is provided on the side wall of the first frame 21 facing the display panel 12, and the hollow area 211 is opposite to the first port 311, so as to facilitate the signal line to pass through the hollow area 211 and be electrically connected to the first port 311.

[0121] Fig.18 : is a cross-sectional view after the first frame and the sending component are assembled, and the structure in the circle on the right side of the figure is a partial enlarged view of the IV position in the left side structure. Fig.17 and Fig.18 As shown, a clamping groove is provided in the first frame 21, and one side edge of the sending component 31 is clamped in the clamping groove, thereby clamping the sending component 31 and making the sending component 31 more secure.

[0122] Fig.19 is a schematic diagram of the second frame, Fig. 20 for Fig.19 The enlarged view of the part at III. Fig.19 and Fig. 20 As shown, the connection port further includes a second port 321 disposed on the receiving component 32 .

[0123] Exemplarily, the receiving component 32 and the second port 321 are located in the second frame 22 .

[0124] Fig.21 : is a cross-sectional view after the second frame and the receiving assembly are assembled, and the structure in the circle on the right side of the figure is a partial enlarged view of the V in the structure on the left side. For example, Fig.21 As shown, a clamping groove is provided in the second frame 22, and one side edge of the receiving component 32 is clamped in the clamping groove, thereby clamping the receiving component 32 and making the receiving component 32 more secure.

[0125] The first port 311 and the second port 321 are both adjacent to the connection area of ​​the first frame 21 and the second frame 22 , so as to facilitate the plugging of the first port 311 and the second port 321 with the signal line.

[0126] Fig. 22 FIG. 1 is a partial structural decomposition diagram of an electronic whiteboard in the implementation of the present disclosure. For example, Fig. 22 As shown, the first frame 21 and the second frame 22 are connected via an adapter 23 . The adapter 23 is located at a corner area of ​​the electronic whiteboard 100 and is fixedly connected to the first frame 21 and the second frame 22 respectively via third screws 231 .

[0127] Fig.23is a schematic diagram of a partial structure of an electronic whiteboard in an embodiment of the present disclosure, Fig.24 for Fig.23 The enlarged view of the part at VII. Fig.23 and Fig.24 As shown, the signal line includes a first signal line 61 , one end of which is electrically connected to the control board 51 , and the other end of the first signal line 61 penetrates into the cavity through the hollow area 211 and is electrically connected to the first port 311 .

[0128] Fig.24 for Fig. 22 The enlarged view of the part at VI. Fig.24 As shown, the signal line further includes a second signal line 62 , one end of the second signal line 62 is electrically connected to the control board 51 , and a second end of the second signal line 62 is electrically connected to the second port 321 .

[0129] The side wall of the first frame 21 facing the rear housing 13 may be provided with an escape groove 212 , and the second signal line 62 may pass through the escape groove 212 to be electrically connected to the second port 321 .

[0130] Exemplarily, the second signal line 62 between the first end and the second end extends along the surface of the first frame 21, thereby facilitating the fixing of the second signal line 62. For example, the second signal line 62 is adhered to the surface of the first frame 21 by double-sided adhesive to prevent the second signal line 62 from being damaged or making abnormal noises during the vibration of the electronic whiteboard 100.

[0131] Of course, the sending component 31 and the first port 311 may be located in the second frame, and the receiving component 32 and the second port 321 may be arranged in the first frame.

[0132] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An electronic whiteboard, characterized in that: include: A display module, comprising a display panel and a backlight assembly, wherein the backlight assembly comprises a backlight plate and a back plate, wherein the back plate cover is arranged on a side of the backlight plate away from the display panel, and the periphery of the back plate comprises a first side wall, wherein the first side wall forms a preset angle with the display panel; A frame, fixedly connected to the periphery of the display module, the frame comprising a first frame opposite to the first side wall; A rear shell at least partially covers the first side wall and the first frame, so that the rear shell, the first side wall and the first frame together form an accommodating space; A touch control component installed inside the frame; A control panel is installed in the accommodating space and is electrically connected to the touch control component.

2. The electronic whiteboard according to claim 1, wherein: The electronic whiteboard further comprises a bracket, one end of which is connected to the back plate, the other end of which is connected to the first frame, and the control board is fixedly connected to the bracket.

3. The electronic whiteboard according to claim 2, wherein: The control board is fixedly connected to a side of the bracket away from the display panel.

4. The electronic whiteboard according to claim 3, wherein: The control board comprises a front side and a back side which are arranged opposite to each other, the front side is provided with a connector, the control board is electrically connected to the touch control component via the connector, and the front side faces the display panel.

5. The electronic whiteboard according to claim 4, wherein: The area on the bracket directly facing the connector is hollowed out.

6. The electronic whiteboard according to claim 2, wherein: The bracket includes a first connecting wall, a mounting wall, a supporting wall and a second connecting wall which are connected in sequence, the first connecting wall is connected to the back plate, the second connecting wall is connected to the first frame, the control board is mounted on the mounting wall, and the supporting wall separates the mounting wall from the first frame.

7. The electronic whiteboard according to claim 5, wherein: The electronic whiteboard further includes a main board, the control board includes a first connector electrically connected to the touch control component and a second connector electrically connected to the main board, and the first connector and the second connector are arranged at intervals along an extension direction of the first frame.

8. The electronic whiteboard according to claim 2, wherein: The included angle between the control plate and the first side wall is α, 40°≤α≤50°.

9. The electronic whiteboard according to any one of claims 1 to 8, wherein: The electronic whiteboard further includes a signal line, the touch control component includes a connection port, one end of the signal line is electrically connected to the connection port, and the other end of the signal line is electrically connected to the control board.

10. The electronic whiteboard according to claim 9, wherein: The length of the signal line is less than or equal to 450 mm.

11. The electronic whiteboard according to claim 9, wherein: The frame further includes a second frame connected to the first frame, and the connection port is adjacent to a connection area between the first frame and the second frame.

12. The electronic whiteboard according to claim 11, wherein: The touch control component includes a sending component and a receiving component, the connection port includes a first port arranged in the sending component and a second port arranged in the receiving component, one of the first port and the second port is arranged in the first frame, and the other is arranged in the second frame.

13. The electronic whiteboard according to claim 12, wherein: A cavity is provided inside the first frame, and part of the structure of the sending component and the first port are arranged in the cavity. A hollow area is provided on the side wall of the first frame facing the display panel, and the hollow area is opposite to the first port. The signal line includes a first signal line, one end of the first signal line is electrically connected to the control board, and the other end of the first signal line penetrates into the cavity through the hollow area and is electrically connected to the first port.

14. The electronic whiteboard according to claim 12, wherein: The receiving component and the second port are arranged in the second frame, and the side wall of the first frame facing the rear shell is provided with an avoidance groove, the signal line includes a second signal line, one end of the second signal line is electrically connected to the control board, and the second end of the second signal line is electrically connected to the second port, and the second signal line between the first end and the second end extends along the first frame and passes through the avoidance groove.

15. The electronic whiteboard according to claim 11, wherein: The electronic whiteboard further comprises a front board assembly, the front board assembly is connected to the first frame, and the control board is installed on a side of the front board assembly away from the corner area.

16. The electronic whiteboard according to claim 1, wherein: The frame includes an upper frame, a lower frame, a left frame and a right frame, and the first frame is the lower frame.

17. An electronic whiteboard, characterized in that: include: A display module, comprising a display panel and a backlight assembly, wherein the backlight assembly comprises a backlight plate and a back plate, wherein the back plate cover is arranged on a side of the backlight plate away from the display panel, and the periphery of the back plate comprises a first side wall, wherein the first side wall forms a preset angle with the display panel; A frame, fixedly connected to the periphery of the display module, the frame comprising a first frame opposite to the first side wall; A touch control component installed inside the frame; A bracket, one end of which is connected to the back plate, and the other end of which is connected to the first frame; A control panel is mounted on the bracket.

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