Electronic whiteboard

Abstract

The invention 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 technologies, and in particular, to an electronic whiteboard. Background Art

[0002] An electronic whiteboard is a new type of product that can display images and interact with users. When using an electronic whiteboard, a user can directly write with a pen just like on an ordinary whiteboard or a teaching blackboard, thus realizing paperless office and teaching. However, existing electronic whiteboards are relatively large in size, and it is not easy to make the device thinner and lighter. Summary of the Invention

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

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

[0005] On the one hand, an electronic whiteboard is provided, including:

[0006] A display module, including a display panel and a backplane. The backplane covers a side of the backlight assembly away from the display panel. A peripheral edge of the backplane includes a first sidewall, and the first sidewall forms a preset angle with the display panel;

[0007] A frame, fixedly connected to a peripheral edge of the display module. The frame includes a first frame opposite to the first sidewall;

[0008] A rear shell, at least partially covering the first sidewall and the first frame, so that the rear shell, the first sidewall, and the first frame jointly enclose an accommodation space;

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

[0010] A control board, installed in the accommodation space and 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 backplane, and the other end of the bracket is connected to the first frame. 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 surface and a back surface disposed opposite to each other. A connector is provided on the front surface. The control board is electrically connected to the touch control component through the connector, and the front surface faces the display panel.

[0014] In some embodiments, a region of the bracket opposite to 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 that are sequentially connected. 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 spaces the mounting wall apart from the first frame.

[0016] In some embodiments, the electronic whiteboard further 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. The first connector and the second connector are arranged at intervals along the extending direction of the first frame.

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

[0018] In some embodiments, the electronic whiteboard further includes a signal line. The touch component includes a connection port. One end of the signal line is electrically connected to the connection port, 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 the connection area of the first frame and the second frame.

[0021] In some embodiments, the touch component includes a transmitting component and a receiving component. The connection port includes a first port disposed on the transmitting component and a second port disposed on the receiving component. One of the first port and the second port is disposed within the first frame, and the other is disposed within the second frame.

[0022] In some embodiments, a cavity is provided inside the first frame. Part of the structure of the transmitting component and the first port are disposed within the cavity. The side wall of the first frame facing the display panel is provided with a hollowed-out area, and a hollowed-out area is provided in the 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 passes through the hollowed-out area into the cavity and is electrically connected to the first port.

[0023] In some embodiments, the receiving component and the second port are disposed in the second frame. An avoidance groove is provided on the side wall of the first frame facing the rear case. 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. 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 card assembly. The front board card assembly is connected to the first frame, and the control board is mounted on a side of the front board card assembly away from the corner area.

[0025] In some embodiments, with reference to when the electronic whiteboard faces the user, the border includes an upper frame, a lower frame, a left frame, and a right frame, and the first frame is the lower frame.

[0026] On the other hand, provided is an electronic whiteboard, including:

[0027] A display module, including a display panel and a backplane. The backplane covers a side of the backlight assembly away from the display panel. A peripheral edge of the backplane includes a first side wall, and the first side wall forms a preset angle with the display panel;

[0028] A border, fixedly connected to a peripheral edge of the display module. The border includes a first frame opposite to the first side wall;

[0029] A touch control component, mounted inside the border;

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

[0031] A control board, mounted on the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

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

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

[0035] Figure 3Exploded view of an electronic whiteboard provided by an embodiment of the present disclosure;

[0036] Figure 4 is Figure 2 Rear view of the area corresponding to the lower left corner of the electronic whiteboard in

[0037] Figure 5 is Figure 4 Cross-sectional view of B-B in

[0038] Figure 6 is Figure 2 A cross-sectional view of A-A in

[0039] Figure 7 is Figure 2 Another cross-sectional view of A-A in

[0040] Figure 8 is Figure 4 Another cross-sectional view of B-B in

[0041] Figure 9 Schematic diagram of the control board and the bracket after connection in an embodiment of the present disclosure Figure 1 ;

[0042] Figure 10 Schematic diagram of the control board and the bracket after connection in an embodiment of the present disclosure Figure 2 ;

[0043] Figure 11 Schematic diagram of the connection process between the control board and the bracket in an embodiment of the present disclosure;

[0044] Figure 12 Exploded view of a partial structure of an electronic whiteboard provided by an embodiment of the present disclosure;

[0045] Figure 13 is Figure 12 Local enlarged view of part I in

[0046] Figure 14 is Figure 4 Another cross-sectional view of B-B in

[0047] Figure 15 Exploded view of a partial structure of an electronic whiteboard provided by an embodiment of the present disclosure;

[0048] Figure 16 Schematic diagram of the first frame;

[0049] Figure 17 is Figure 16 Local enlarged view of part II in

[0050] Figure 18 Cross-sectional view of the first frame and the sending component after assembly;

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

[0052] Figure 20 for Figure 19 A partial enlarged view of point III;

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

[0054] Figure 22 A partial structural exploded diagram of an electronic whiteboard in an embodiment of the present disclosure;

[0055] Figure 23 A schematic diagram of a partial structure of an electronic whiteboard according to an embodiment of the present disclosure;

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

[0057] Figure 25 This 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 accompanying 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 embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts 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 cannot 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, “a plurality of” means two or more, and “at least one” means one or more, unless otherwise clearly and specifically defined.

[0061] In the embodiments of the present disclosure, the orientations or positional relationships indicated by terms such as “upper” and “lower” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present disclosure and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present disclosure.

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

[0063] Figure 2 This is a front view of the electronic whiteboard provided by the embodiments of the present disclosure. As Figure 2 shown, the electronic whiteboard 100 includes a display module 10. The display module 10 can display images that are either moving (e.g., videos) or stationary (e.g., still pictures), and whether text or pictures. For example, when the electronic whiteboard 100 is applied to a meeting scenario, the display module 10 can display slides, meeting records, etc. When the electronic whiteboard 100 is applied to a teaching scenario, the display module 10 can display texts, demonstration animations, etc.

[0064] The display module 10 includes a display panel. The display panel can be a liquid crystal display panel (Liquid Crystal Display, abbreviated as LCD); the display panel can 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 can be an organic light-emitting diode (Organic Light-Emitting Diode, abbreviated as OLED) display panel, a quantum dot light-emitting diode (Quantum Dot Light Emitting Diode, abbreviated as QLED) display panel, a micro light-emitting diode (Micro Light Emitting Diodes, abbreviated as Micro LED), etc. In the case where the display panel is a photoluminescent display panel, the photoluminescent display panel can be a quantum dot photoluminescent display panel. Embodiments of the present disclosure are described by taking the display panel as a liquid crystal display panel as an example.

[0065] Figure 3 This is an exploded view of the electronic whiteboard provided by the embodiments of the present disclosure. As Figure 2 and Figure 3 shown, the display module 10 can include a display panel 12 and a backlight assembly. The display panel 12 includes a light-emitting surface for displaying images 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 for providing a light source for the display panel 12. The back plate 13 covers the side of the backlight plate away from the display panel 12 for protecting the backlight plate.

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

[0067] Figure 4 is Figure 2 the rear view of the area corresponding to the lower left corner of the electronic whiteboard, Figure 5 is Figure 4 the sectional view about B - B in. As Figure 4 and Figure 5 shown, the backplane 13 can 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 backplane 13 is integrally in a basin shape recessed in the direction away from the display panel 12.

[0068] Continuing to refer to Figure 5 , the first side wall 131 forms a preset angle β with the display panel 12, so that the backplane 13 and the display panel 12 enclose a space for installing the backlight panel. The specific value of the preset angle β is not limited in the embodiments of the present disclosure, for example, 90°, 80°, 60°, 45°, 30°, etc.

[0069] Continuing to refer to Figure 3 , in practical applications, the electronic whiteboard 100 can further include a board card assembly 70. The board card assembly 70 can be connected to the side of the backplane 13 away from the display panel 12. The board card assembly 70 can include the main board of the electronic whiteboard 100, the main control board of the display panel 12, etc., and can also include a network interface, a video input interface, a video output interface, a USB interface, etc.

[0070] Continuing to refer to Figure 3 , in practical applications, the display module 10 can further include a cover plate 11. The cover plate 11 is connected to the light - emitting surface of the display panel 12 to protect the display panel 12. The cover plate 11 can be a rigid cover plate or a flexible cover plate, and can be a single - layer structure or a multi - layer structure formed by laminating multiple film layers. When the display module 10 is a flexible display module, the cover plate 11 can be a flexible cover plate. For example, when the cover plate is a single - layer structure, the cover plate 11 can be a thin glass cover plate, or the cover plate 11 can also be a single - layer PI or a single - layer PET and other single - layer transparent polymer layers; when the cover plate is a multi - layer structure, along 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, where adjacent two layers are adhered by optical adhesive, 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 can be a rigid cover plate, such as thick glass.

[0071] Continuing to refer toFigure 2 And Figure 3 , the electronic whiteboard 100 further includes a frame 20, and the frame 20 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 integrally rectangular. With reference to when the electronic whiteboard 100 faces 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 may be respectively made of strip-shaped profiles (such as aluminum profiles) and are sequentially connected end to end to form the frame 20. Among them, the cross-sections of the upper frame, the lower frame, the left frame, and the right frame may be the same or different. Exemplarily, the cross-section of the lower frame is larger than the cross-sections of other parts of the frame 20 to facilitate the installation of various signal interfaces on the lower frame, such as a front USB interface.

[0074] Continuing to refer to Figure 5 , the part of the frame 20 that is disposed opposite to the first sidewall 131 is the first frame 21. Here, the opposite setting means that the first sidewall 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 horizontal direction in Figure 2 , and the first sidewall 131 is the sidewall of the backplane 13 close to the lower frame, and the first sidewall 131 extends substantially along

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

[0076] Exemplarily, as shown in Figure 4 , the rear case 40 includes a first sub-case 40a and a second sub-case 40b. The first sub-case 40a covers the lower left corner area of the electronic whiteboard 100, and the second sub-case 40b covers the lower edge of the electronic whiteboard 100.

[0077] Continuing to refer to Figure 5 , the rear case 40 at least partially covers the first sidewall 131 and the first frame 21, so that the rear case 40, the first sidewall 131, and the first frame 21 together enclose an accommodation space 1 ( Figure 5 the trapezoidal area pointed by the arrow 1 in

[0078] Exemplarily, the cross-section of the rear shell 40 is in an "L" shape, including a first wall 41 and a second wall 42. 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 shape of the accommodating space 1 is not limited in the embodiments of the present disclosure and may be Figure 5 the inverted trapezoid shown in , or other shapes. 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 have a preset included angle β that is a right angle and the cross-section of the rear shell 40 is in an "L" shape, 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, and galvanized steel plates through a stamping process.

[0081] Continuing to refer to Figure 3 , in order to realize the interaction between the electronic whiteboard 100 and the user, the electronic whiteboard 100 further includes a touch control component 30. The touch control component 30 can recognize the touch operation of the user on the display module 10, such as recognizing the touch position and touch time of the user. In the embodiments of the present disclosure, the touch control component 30 is taken as an infrared touch control component as an example for introduction. When the touch control component 30 is an infrared touch control component, the touch control component 30 includes two structural forms: a direct emission type and a reflection type.

[0082] Figure 6 For Figure 2 a sectional view about A-A in Figure 6 shows the structural form of the touch control component 30 being of the direct emission type, Figure 6 and the straight arrowed lines in represent infrared light rays. As shown in Figure 6 , the touch control component 30 includes a transmitting component 31 and a receiving component 32. Both the transmitting component 31 and the receiving component 32 are arranged in the frame 20, and the transmitting component 31 and the receiving component 32 are arranged opposite to each other. During operation, the transmitting component 31 emits infrared light rays, and the infrared light rays are propagated along the light-emitting side of the cover plate 11 and then received by the receiving component 32. When the user's finger or stylus is placed on the propagation path of the infrared light rays, the infrared light rays are blocked, and the receiving component 32 cannot receive the infrared light rays, 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 rays.

[0083] ​Exemplarily, the transmitting component 31 is provided with a plurality of infrared lamp beads, and the plurality of infrared lamp beads are arranged at intervals along one side direction of the display module 10. Correspondingly, the receiving component 32 is provided with a plurality of infrared sensors, and the plurality of infrared sensors are arranged at intervals along the opposite side direction of the display module 10, and the infrared lamp beads and the infrared sensors are in one-to-one correspondence. The position of the touch operation is judged according to the position of the infrared sensor that cannot receive infrared light.

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

[0085] To solve the above problems, a reflective touch component is proposed. ​ For ​ Another sectional view about A-A in ​ shows the structural form of the touch component 30 as a reflective type. ​ The broken line with an arrow in ​ represents infrared light. As ​ shown, the touch component 30 may further include a reflective lens 34. The transmitting component 31 sends infrared light towards the reflective lens 34 in a direction perpendicular to the cover plate 11. After being reflected by the reflective lens 34, the infrared light propagates along the side of the cover plate 11 where the light is emitted, and is received by the receiving component 32 after being reflected by the reflective lens 34 opposite to the receiving component 32. As

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

[0087] When the touch component 30 is a direct - type 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 touch signals through a transmission line. When the touch component 30 is a reflective touch component, since the touch recognition method of the reflective touch component is more complex, the electronic whiteboard 100 further includes a control board. The control board 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 for touch operation recognition and reducing the delay of touch operation recognition.

[0088] ​ For ​ Another sectional view about B - B in. As ​ shown, the control board 51 is installed in the accommodation space 1. Installing the control board 51 in the accommodation space 1 without the need to specifically set up a separate installation space for the control board 51 makes the structure of the electronic whiteboard 100 more compact and reduces the volume of the electronic whiteboard 100.

[0089] Continue to refer to ​ and ​ , the first frame 21 includes a first surface 21a facing away from the light - emitting surface of the display module 10. The included angle between the first wall 41 and the first surface 21a is the first angle A1, and the included angle between the second wall 42 and the first side wall 131 is the second angle A2. The control board 51 is arranged along the diagonal line of the first angle A1 and the second angle A2 ( ​ the dotted line in). It should be noted that, for the convenience of showing the accommodation space 1, ​ the control board is not shown in.

[0090] The control board 51 is arranged along the diagonal line means that the extension direction of the plane where the control board 51 is located is generally the same as the extension direction of the diagonal line, which can be completely coincident or have a small - angle included angle.

[0091] In the accommodation space 1, the diagonal line length of the first angle A1 and the second angle A2 is relatively long. The control board 51 is arranged along the diagonal line, which can make full use of the space of the accommodation space 1. So, in the case of the same accommodation space 1, a control board 51 with a larger size can be placed, thereby making the layout space for each component in the control board 51 larger. And, the control board 51 arranged along the diagonal line 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 dimensional errors.

[0092] The included angle between the control board 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 make full use of the accommodation space 1.

[0093] Continue to refer to ​, the electronic whiteboard 100 may further include a bracket 52, and the control board 51 may be connected to the bracket 52 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 functions of fixing the control board 51 and enhancing the structural strength of the electronic whiteboard 100.

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

[0095] ​ Schematic diagram after the control board is connected to the bracket in the embodiment of the present disclosure ​ , ​ Schematic diagram after the control board is connected to the bracket in the embodiment of the present disclosure ​ , ​ Schematic diagram of the connection process between the control board and the bracket in the embodiment of the present disclosure. Exemplarily, as ​ shown, the control board 51 and the bracket 52 are fixedly connected by a first screw 522. The bracket 52 is provided with a plurality of through holes 524, and the bracket 52 is screwed to the back plate 13 or the first frame 21 through the plurality of through holes 524.

[0096] Exemplarily, continue to refer to ​ , the bracket may further include a second connection wall 523 and an avoidance hole 521 oppositely arranged with the second connection wall 523. When installing the bracket 52, the screw may pass through the avoidance hole 521 and then be connected to the second connection wall 523, so as to facilitate the installation of the bracket 52.

[0097] ​ Partial structural exploded view of an electronic whiteboard in the embodiment of the present disclosure, ​ is ​ Local enlarged view of part I in ​ and ​ shown, the bracket 52 is further provided with a positioning hole 525, and the back plate 13 is provided with a positioning post 133. The bracket 52 can be quickly positioned through the cooperation of the positioning hole 525 and the positioning post 133, and the installation is more convenient. The first frame 21 is provided with a second threaded hole 213. The second screw 526 passes through the avoidance hole 521 and is connected to the second threaded hole 213, so as to connect the connection wall 523 and the first frame 21. The second screw 526 also passes through the through hole 524 and is threadedly connected to the first threaded hole 132 on the back plate 13.

[0098] Continue to refer to ​, the bracket 52 may include a first connecting wall 501, a mounting wall 502, a supporting wall 503, and a second connecting wall 523 that are sequentially connected. 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 spaces the mounting wall 502 from the first frame 21. The supporting wall 503 spaces the mounting wall 502 from the first frame 21, facilitating the connection between the bracket 52 and the first frame 21.

[0099] Among them, the control board 51 may be connected to one side of the bracket 52 facing the display panel 12, or the control board 51 may also be connected to one 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 accommodation space 1 can be fully utilized.

[0100] The control board 51 includes a front surface and a back surface that face away from each other. Connectors and other electronic components are soldered on the front surface, and the control board 51 is electrically connected to the touch control component 30 through the connectors. For example, the control board 51 is a printed circuit board (Printed Circuit Board, abbreviated as PCB). The front surface of the PCB is composed of patterns, letters, numbers and other marks, also known as the "solder mask surface" or the "surface mount (SMT) surface", whose function is to cover the areas that do not need to be soldered, and at the same time provide protection functions such as preventing oxidation and avoiding short circuits. The back surface of the PCB is called the "non-solder mask surface" or the "plug-in surface", and its main function is to provide connection lines.

[0101] ​ For ​ Another sectional view of B-B in ​ As shown, the back surface of the control board 51 may face the light-emitting surface of the display module 10. At this time, the connectors and other electronic components connected to the control board 51 face the rear case 40, making it easy for the connectors and electronic components to interfere with the rear case 40, increasing the risk of damage to the connectors and electronic components. For example, ​ in, the electronic components on the control board 51 interfere with the rear case 40 at c1 and c2.

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

[0103] Continue to refer to ​, the control board 51 includes a first connector 511 electrically connected to the touch control 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 extending direction of the first frame 21, so that the distance between the first connector 511 and the second connector 512 is relatively large, facilitating the electrical connection between the control board 51, the main board, and the touch control 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, facilitating the insertion of the signal line into the first connector 511 and the second connector 512.

[0105] Exemplarily, as ​ shown, the bracket 52 is integrally in a "Z" shape. 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 in other ways. For example, the control board 51 is directly connected to the back plate 13 and the first frame 21 by screws, or the control board 51 is connected to the back plate 13 and / or the first frame 21 by adhesive.

[0107] The touch control 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 the signal strength during the signal transmission between the touch control 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] ​ This is a partial structural exploded view of an electronic whiteboard in an embodiment of the present disclosure. As ​ shown, the frame 20 further includes a second frame 22 connected to the first frame 21. The connection area between the first frame 21 and the second frame 22 is the 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 between the first frame 21 and the second frame 22. The connection port is arranged adjacent to the connection area, which facilitates the lead-out of the signal line from the connection port. Since the connection port is arranged adjacent to the connection area between 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 between the first frame 21 and the second frame 22. Among them, the connection port being adjacent to the connection area between the first frame 21 and the second frame 22 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 closest to the second frame 22 among the three parts. 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 closest to the first frame 21 among the three parts.

[0112] ​ is a partial structural schematic diagram of an electronic whiteboard in an embodiment of the present disclosure. As ​ shown, the electronic whiteboard 100 may further include a front board card assembly 91. The front board card assembly 91 is connected to the first frame 21, and the control board 51 is installed on one side of the front board card assembly 91 away from the corner area to prevent interference between the control board 51 and the front board card assembly 91.

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

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

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

[0116] [[ID=,20]]Exemplarily, the lower frame and the right frame of the frame 20 are installed with a transmitting component 31, and the transmitting component 31 in the lower frame is electrically connected to the transmitting 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] Among them, the first frame 21 may be the lower frame, and the second frame 22 may be the left frame.

[0118] ​ is a schematic diagram of the first frame, ​ is ​ a partial enlarged view of part II in ​ and ​ shown, the connection port includes a first port 311 provided on the transmitting component 31.

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

[0120] Exemplarily, as ​ shown, a cavity is provided within the first frame 21, the first port 311 is disposed within the cavity, and a hollowed-out area 211 is provided on the side wall of the first frame 21 facing the display panel 12. The hollowed-out area 211 is opposite to the first port 311, thereby facilitating the signal line to pass through the hollowed-out area 211 and be electrically connected to the first port 311.

[0121] ​ is a cross-sectional view after the assembly of the first frame and the sending component. The structure within the right circle in the figure is a partial enlarged view of the structure at IV in the left structure. Exemplarily, as ​ and ​ shown, a clamping groove is provided within the first frame 21, and one side edge of the sending component 31 is clamped within the clamping groove, thereby clamping the sending component 31 to make the sending component 31 more secure.

[0122] ​ is a schematic diagram of the second frame, ​ is ​ a partial enlarged view of the structure at III in ​ and ​ shown, the connection port further includes a second port 321 provided on the receiving component 32.

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

[0124] ​ is a cross-sectional view after the assembly of the second frame and the receiving component. The structure within the right circle in the figure is a partial enlarged view of the structure at V in the left structure. Exemplarily, as ​ shown, a clamping groove is provided within the second frame 22, and one side edge of the receiving component 32 is clamped within the clamping groove, thereby clamping the receiving component 32 to make the receiving component 32 more secure.

[0125] Both the first port 311 and the second port 321 are adjacent to the connection area of the first frame 21 and the second frame 22, facilitating the insertion of the first port 311 and the second port 321 into the signal line.

[0126] ​ is a partial structural exploded view of an electronic whiteboard in an embodiment of the present disclosure. Exemplarily, as ​ shown, the first frame 21 and the second frame 22 are connected by an adapter 23. The adapter 23 is located in the corner area of the electronic whiteboard 100 and is fixedly connected to the first frame 21 and the second frame 22 respectively by third screws 231.

[0127] ​This is a schematic diagram of a partial structure of an electronic whiteboard in an embodiment of the present disclosure. ​ It is ​ a partial enlarged view of VII in ​ and ​ As shown in

[0128] ​ It is ​ a partial enlarged view of VI in ​ As shown in

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

[0130] Exemplarily, the second signal line 62 located between the first end and the second end extends along the surface of the first frame 21, so as to facilitate 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 tape 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, it may also be that the sending component 31 and the first port 311 are located in the second frame, and the receiving component 32 and the second port 321 are arranged in the first frame.

[0132] As mentioned above, the above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claimed rights.

Claims

1. An electronic whiteboard, characterized in that, Comprising: A display module, including a display panel and a backplane, the backplane covering the backlight side of the display panel, a peripheral edge of the backplane including a first sidewall, the first sidewall forming a preset angle with the display panel; A frame, fixedly connected to the periphery of the display module, the frame including a first frame opposite to the first sidewall; A rear shell, at least partially covering the first sidewall and the first frame, such that the rear shell, the first sidewall, and the first frame jointly enclose an accommodation space; A touch control component, installed inside the frame; A control board, installed in the accommodation space and electrically connected to the touch control component.

2. The electronic whiteboard according to claim 1, wherein The electronic whiteboard further includes a bracket, one end of the bracket being connected to the backplane, the other end of the bracket being connected to the first frame, and the control board being 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 includes a front side and a back side disposed opposite to each other, a connector being provided on the front side, the control board being electrically connected to the touch control component through the connector, and the front side facing the display panel.

5. The electronic whiteboard according to claim 4, wherein, A region on the bracket opposite to 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 connected in sequence, the first connecting wall being connected to the backplane, the second connecting wall being connected to the first frame, the control board being installed on the mounting wall, and the supporting wall spacing 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 including a first connector electrically connected to the touch control component and a second connector electrically connected to the main board, the first connector and the second connector being spaced apart along an extending direction of the first frame.

8. The electronic whiteboard according to claim 2, wherein, An included angle between the control board and the first sidewall is α, where 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 including a connection port, one end of the signal line being electrically connected to the connection port, and the other end of the signal line being 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 region between the first frame and the second frame.

12. The electronic whiteboard according to claim 11, wherein, The touch control component includes a transmitting component and a receiving component, the connection port including a first port provided on the transmitting component and a second port provided on the receiving component, one of the first port and the second port being provided inside the first frame and the other being provided inside the second frame.

13. The electronic whiteboard according to claim 12, wherein, A cavity is provided inside the first frame, a partial structure of the transmitting component and the first port being provided inside the cavity, a sidewall of the first frame facing the display panel being provided with a hollowed-out region opposite to the first port, the signal line including a first signal line, one end of the first signal line being electrically connected to the control board, and the other end of the first signal line passing through the hollowed-out region into the cavity and being electrically connected to the first port.

14. The electronic whiteboard according to claim 12, wherein, The receiving component and the second port are disposed in the second frame. A relief groove is provided on a side wall of the first frame facing the rear case. 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. The second signal line between the first end and the second end extends along the first frame and passes through the relief groove.

15. The electronic whiteboard according to claim 11, wherein, The electronic whiteboard further includes a front board card assembly connected to the first frame, and the control board is mounted on a side of the front board card 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, Comprising: A display module, including a display panel and a back plate. The back plate covers a side of the backlight assembly away from the display panel. A peripheral edge of the back plate includes a first side wall, and the first side wall forms a preset angle with the display panel. A frame fixedly connected to a periphery of the display module. The frame includes 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 board mounted on the bracket.

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