Touch key and interactive tablet

Abstract

The application provides a touch key and an interactive panel, and relates to the technical field of interactive panels, and aims at solving the technical problem that the key structure on the existing interactive panel is relatively complex. The touch key comprises a frame body, a signal emitting unit, a touch key body and a sensing unit. The frame body is internally provided with a cavity. The signal emitting unit is arranged in the cavity and is used for emitting light. The touch key body is arranged on the frame body and is located on the propagation path of the light. The touch key body is a light-transmitting key through which the light can pass. The sensing unit is arranged in the cavity and is used for receiving the reflected light which passes through the touch key body and is reflected by the touch key body. The touch key and the interactive panel provided by the application have a relatively simple key structure and are convenient to install.

Description

Technical Field

[0001] This invention relates to the field of interactive flat panel technology, and more particularly to a touch button and an interactive flat panel. Background Technology

[0002] A touchscreen mainly consists of a display screen and a touchscreen bezel mounted on the outside of the display screen. Transmitting and receiving elements are arranged on the touchscreen bezel, forming a detection network on the display screen. Any object touching the display screen can change the position of the touch point to achieve touchscreen operation.

[0003] To enable control functions such as turning the touchscreen on or off, several control buttons are typically located on the touchscreen's bezel. Currently, there are two types of control buttons on the touchscreen bezel: one is pressure-sensitive buttons, where a press-type button is installed on the touchscreen frame, and a control module is located inside the frame. When the user presses the press-type button, it triggers the control module to control the touchscreen. The other type is a secondary touchscreen installed on the surface of the frame. Specifically, an opening is made on the surface of the frame, and a secondary touchscreen is installed inside the opening, allowing the user to control the touchscreen through the secondary touchscreen.

[0004] However, the structure of the control buttons on the existing touchscreen bezel is quite complex. Summary of the Invention

[0005] To address at least one of the problems mentioned in the background art, the present invention provides a touch button and an interactive flat panel, which simplifies the button structure on the interactive flat panel.

[0006] To achieve the above objectives, in a first aspect, the present invention provides a touch button, comprising:

[0007] The frame has a cavity inside;

[0008] A signal transmitting unit is disposed within the cavity, and the signal transmitting unit is used to emit light.

[0009] A touch button body is disposed on the frame, and the touch button body is located on the propagation path of the light, and the touch button is a light-transmitting button that allows the light to pass through;

[0010] A sensing unit is disposed within the cavity, and the sensing unit is used to receive reflected light that passes through the touch button body and is reflected before passing through the touch button.

[0011] Furthermore, it also includes a light guide unit;

[0012] The light guide unit is used to reflect the light emitted by the signal emitting unit and direct it toward the touch button body;

[0013] It is also used to reflect the reflected light and direct it toward the sensing unit.

[0014] Furthermore, the light guide unit includes a first light guide and a second light guide;

[0015] The first light guide is opposite to the signal transmitting unit, and the second light guide is opposite to the sensing unit;

[0016] Furthermore, a light-blocking component is provided between the first light guide and the second light guide.

[0017] Furthermore, the light guiding unit includes a housing, and the housing has a cavity inside, and the light blocking element is a baffle disposed inside the cavity;

[0018] The baffle divides the cavity into two chambers, and the first light guide and the second light guide are respectively installed in the two chambers.

[0019] Furthermore, a circuit board is provided inside the cavity, and the circuit board is connected to an infrared emitting element and an infrared receiving element disposed on the frame. The signal transmitting unit, the sensing unit and the light guiding unit are disposed on the circuit board.

[0020] Furthermore, the signal transmitting unit and the sensing unit are integrated on the same chip, and the signal transmitting unit and the sensing unit are arranged side by side on the chip.

[0021] Furthermore, the housing is provided with grooves;

[0022] The bottom surface of the groove is provided with a first entrance hole and a second exit hole that are respectively opposite to the first light guide and the second light guide;

[0023] The signal transmitting unit and the sensing unit are disposed in the groove, with the signal transmitting unit facing the first entrance hole and the sensing unit facing the second exit hole.

[0024] Furthermore, the light emitted by the signal transmitting unit is perpendicular to the light passing through the touch button body;

[0025] The light guide unit includes a reflective surface, and the angle between the reflective surface and the light emitted by the signal emitting unit is 45°.

[0026] Furthermore, the light emitted by the signal transmitting unit is infrared light.

[0027] Secondly, the present invention provides an interactive flat panel, including a display screen and touch buttons as described above;

[0028] The display screen is mounted on the touch button, the frame of the touch button is located outside the display screen, and the touch button body is located on opposite sides of the display screen.

[0029] The touch button and interactive flat panel provided by this invention utilize a signal transmitting unit and a sensing unit disposed inside a frame, with the touch button body disposed on the frame. Light emitted by the signal transmitting unit passes through the touch button body. When an external object (such as a finger) approaches the touch button body, the light is reflected back through the touch button body by the external object, and the sensing unit detects the reflected light, thereby detecting that the touch button body has been touched. The structure of the signal transmitting unit, the sensing unit, and the touch button body itself is relatively simple, and their installation structure within the frame is also relatively simple.

[0030] The structure of the present invention, as well as its other inventive objects and beneficial effects, will become more apparent from the description of preferred embodiments taken in conjunction with the accompanying drawings. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is an exploded view of the structure of the touch button provided in Embodiment 1 of the present invention;

[0033] Figure 2 This is a top view of the touch button provided in Embodiment 1 of the present invention;

[0034] Figure 3 for Figure 2 Sectional view at point AA;

[0035] Figure 4 for Figure 1 A magnified view of a section at point B in the middle;

[0036] Figure 5 This is an exploded view of the structure of the light guide unit provided in Embodiment 1 of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of the interactive flat panel provided in Embodiment 1 of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1-Frame;

[0040] 11-Panel;

[0041] 101-Cavity;

[0042] 102 - Through hole;

[0043] 2-Signal transmitting unit;

[0044] 3-Touch button body;

[0045] 4-Sensing unit;

[0046] 5-Light guide unit;

[0047] 51 - First light guide;

[0048] 52 - Second light guide;

[0049] 53-Light blocking component;

[0050] 54 - Housing;

[0051] 55 - Reflective surface;

[0052] 501 - First entrance port;

[0053] 502 - First injection hole;

[0054] 503 - Second entrance port;

[0055] 504 - Second injection hole;

[0056] 505 - Groove;

[0057] 6-Printed circuit board;

[0058] 7- Display screen;

[0059] 8-chip. Detailed Implementation

[0060] Interactive flat panels typically have control buttons on their bezels to control functions such as turning the touchscreen on and off. Currently, there are generally two types of control buttons on the bezel: one is pressure-sensitive buttons, where a press-sensitive button is installed on the frame of the interactive flat panel, and a control module is located inside the frame. When the user presses the button, the button triggers the control module, enabling control of the interactive flat panel; the other is a secondary touchscreen installed on the surface of the frame. An opening is made on the surface of the frame, and a secondary touchscreen is installed within the opening, allowing the user to control the interactive flat panel through this secondary touchscreen.

[0061] However, the pressure-sensitive button design requires creating through holes in the frame for the press-type button to pass through, and setting up a positioning structure inside the frame to position the control module. The through holes and positioning structure have high positional accuracy requirements, resulting in a complex frame design, increased machining workload, and negatively impacting assembly efficiency and cost. Furthermore, the pressure-sensitive button requires the user to press it forcefully, making operation inconvenient.

[0062] In solutions that incorporate a secondary touchscreen, the antenna clearance for the secondary touchscreen needs to be considered when designing the bezel, which increases the complexity of the bezel's structural design and raises manufacturing costs. Furthermore, the secondary touchscreen itself also has a higher cost.

[0063] To address the aforementioned problems, this invention provides a touch button and an interactive flat panel. A signal transmitting unit and a sensing unit are disposed inside a frame, and a touch button body is disposed on the frame. Light emitted by the signal transmitting unit passes through the touch button body. When an external object, such as a finger, approaches the touch button body, the light is reflected back through the touch button body by the external object. The sensing unit detects the reflected light, thereby detecting that the touch button body has been touched. The structure of the signal transmitting unit, the sensing unit, and the touch button body itself is relatively simple, and their installation structure within the frame is also relatively simple. Moreover, since the finger does not need to press the touch button body, but only needs to touch it, operation is also relatively convenient.

[0064] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be described in more detail below with reference to the accompanying drawings of the preferred embodiments. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0065] Example 1

[0066] This invention provides a touch button, see reference. Figure 1 , Figure 2 and Figure 3As shown, it includes a frame 1, a signal transmitting unit 2, a touch button body 3, and a sensing unit 4; wherein, the frame 1 has a cavity 101, the signal transmitting unit 2 is disposed in the cavity 101, and the signal transmitting unit 2 is used to emit light; the touch button body 3 is disposed on the frame 1 and is located in the light propagation path, and the touch button body 3 is a light-transmitting button that allows light to pass through; the sensing unit 4 is disposed in the cavity 101, and the sensing unit 4 is used to receive the reflected light that passes through the touch button body 3 and is reflected back to the touch button body 3.

[0067] In this embodiment, the light emitted by the signal transmitting unit 2 passes through the touch button body 3. If an external object (such as a finger) approaches the touch button body 3, the light will be blocked by the external object and reflected back through the touch button body 3, and detected by the sensing unit 4. The sensing unit 4 can then send a signal to the control mechanism of the interactive tablet, which will control the interactive tablet to perform corresponding actions (such as turning it on or off). If no object approaches the touch button body 3, the light will not be reflected, the sensing unit 4 will not detect the light, and therefore will not send a signal to the control mechanism.

[0068] In other words, in this embodiment, a signal transmitting unit 2, a touch button body 3, and a sensing unit 4 are arranged on the frame 1; the signal transmitting unit 2, the touch button body 3, and the sensing unit 4 are combined to realize the function of the control button on the interactive flat panel. Compared with the existing pressure-sensitive button solution, because the button needs to be connected to the control module through a mechanical mechanism to realize the pressing of the control module, the relative position between the button and the control module is difficult to adjust, which may increase the design difficulty of the interactive flat panel frame; while in the solution of this embodiment, because the propagation path of light is easy to adjust, the relative position between the signal transmitting unit 2, the sensing unit 4, and the touch button body 3 can be adjusted more conveniently, which facilitates the arrangement of the signal transmitting unit 2, the sensing unit 4, and the touch button body 3.

[0069] Compared with the solution using a secondary touchscreen, the solution in this embodiment does not require consideration of the clearance of the secondary touchscreen antenna when designing the frame 1, making the structure of the frame 1 simpler. Moreover, the cost of the signal transmitting unit 2 and the sensing unit 4 is also lower than that of the secondary touchscreen.

[0070] This embodiment will use... Figure 1 and Figure 3 The touch button is described using the frame 1 shown as an example; it should be noted that the structure of frame 1 is not limited to this, and other frame structures are also feasible.

[0071] In interactive flat panel, refer to Figure 6As shown, the frame 1 is used to be set on the outside of the display screen 7, and multiple sets of transmitting elements and receiving elements are set on the frame 1; the multiple sets of transmitting elements and receiving elements form a detection network on the display screen 7, and any object that touches the display screen 7 can change the touch point to realize touch screen operation.

[0072] refer to Figure 3 As shown, for ease of description, the following description of this embodiment will use the term "information". Figure 3 The horizontally arranged panel on the upper center is called panel 11. When the interactive flat panel with this frame 1 is in use, panel 11 is located on the side facing the user. (Reference) Figure 1 and Figure 3 As shown, the space behind the panel 11 of the frame 1 forms the cavity 101 described above, and the signal transmitting unit 2 and the sensing unit 4 described above are both disposed in the cavity 101.

[0073] In this embodiment, the touch button body 3 is mounted on the panel 11. Specifically, refer to... Figure 1 and Figure 3 As shown, a through hole 102 is provided on the panel 11. The aforementioned touch button body 3 is fixed to the outer surface of the panel 11, and the touch button body 3 covers the through hole 102. The light emitted by the signal transmitting unit 2 can pass outward through the through hole 102 and through the touch button body 3. After being reflected by an external object, the light that passes back through the touch button body 3 enters the cavity 101 through the through hole 102 and is detected by the sensing unit 4.

[0074] Based on the above structure, this embodiment provides a structure that further facilitates the arrangement of the signal transmitting unit 2 and the sensing unit 4. Specifically, refer to... Figure 1 , Figure 3 and Figure 4 As shown, the touch button in this embodiment also includes a light guide unit 5; the light guide unit 5 is used to reflect the light emitted by the signal transmitting unit 2 and direct it toward the touch button body 3, and to reflect the reflected light and direct it toward the sensing unit 4.

[0075] In other words, in this embodiment, the light emitted by the signal transmitting unit 2 is not directly directed toward the touch button body 3, and the reflected light reflected by the external object is not directly directed toward the sensing unit 4, but is reflected by the light guiding unit 5 and then directed toward the corresponding target.

[0076] By setting up a light guide unit 5, the light is reflected by the light guide unit 5, and the propagation angle of the light is changed before it is directed toward the target. This allows the signal transmitting unit 2 and the sensing unit 4 to be positioned so that they do not have to be directly facing the touch button body 3, thus allowing the signal transmitting unit 2 and the sensing unit 4 to be arranged more flexibly within the cavity 101.

[0077] It should be noted that in some embodiments, the light guide unit 5 may not be provided. Instead, the signal transmitting unit 2 and the sensing unit 4 face the touch button body 3. The light emitted by the signal transmitting unit 2 passes directly through the touch button body 3. After being blocked and reflected by external objects, the light is directly directed to the sensing unit 4. This solution has a simpler structure, but it has higher requirements for the internal structure design of the frame 1 and may be affected by external light interference.

[0078] Based on the aforementioned light guide unit 5, this embodiment further provides a structure that enables the light guide unit 5 to achieve better performance. Specifically, refer to... Figure 4 As shown, the light guide unit 5 in this embodiment includes a first light guide 51 and a second light guide 52; the first light guide 51 is opposite to the signal transmitting unit 2, the second light guide 52 is opposite to the sensing unit 4, and a light blocking member 53 is provided between the first light guide 51 and the second light guide 52.

[0079] That is to say, the light emitted by the signal transmitting unit 2 is directed toward the first light guide 51, and after being reflected by the first light guide 51, it is directed toward the touch button body 3; the reflected light that is blocked by the external object is directed toward the second light guide 52, and after being reflected by the second light guide 52, it is directed toward the sensing unit 4; the light blocking member 53 is disposed between the first light guide 51 and the second light guide 52, thereby preventing the light emitted by the signal transmitting unit 2 from interfering with the reflected light that is reflected back by the external object.

[0080] In this embodiment, by setting the first light guide 51, the second light guide 52 and the light blocking component 53, the light emitted by the signal transmitting unit 2 is blocked from propagating from the first light guide 51 to the second light guide 52 by the light blocking component 53, so as to avoid the light being incorrectly identified by the sensing unit 4, thereby improving the accuracy of the sensing unit 4 in identifying external objects and improving the usability of the interactive flat panel frame.

[0081] Based on the above-described first light guide 51 and second light guide 52, this embodiment further provides an optimized mounting structure for the first light guide 51 and second light guide 52. (See reference...) Figure 4 and Figure 5 As shown, the light guide unit 5 in this embodiment also includes a housing 54, and a cavity is provided inside the housing 54. The light blocking member 53 in this embodiment is a partition fixedly installed inside the cavity. The light blocking member 53 divides the cavity into two chambers. The first light guide 51 and the second light guide 52 are respectively installed in the two chambers. That is, the first light guide 51 is installed in one of the two chambers, and the second light guide 52 is installed in the other of the two chambers.

[0082] refer to Figure 5As shown, the housing 54 is provided with a first entrance hole 501 and a first exit hole 502 corresponding to the first light guide 51. The housing 54 is also provided with a second entrance hole 503 and a second exit hole 504 corresponding to the second light guide 52. This allows light emitted by the signal transmitting unit 2 to pass through the first entrance hole 501 and reach the first light guide 51, while light emitted by the first light guide 51 can pass through the first exit hole 502 and reach the touch button body 3. Light reflected by external objects can pass through the second entrance hole 503 and reach the second light guide 52, while light reflected by the second light guide 52 can pass through the second exit hole 504 and reach the sensing unit 4.

[0083] Both the housing 54 and the light-blocking component 53 are made of opaque materials, such as black plastic or metal.

[0084] In this embodiment, by setting the housing 54 with the above-described structure, the first light guide 51 and the second light guide 52 are installed in the housing 54, which constitutes the installation of the first light guide 51 and the second light guide 52. Compared with fixing the first light guide 51 and the second light guide 52 separately in the cavity 101, the solution of this embodiment makes the installation of the first light guide 51 and the second light guide 52 more convenient.

[0085] Based on the above structure, this embodiment provides a structure that further facilitates the arrangement of the signal transmitting unit 2, the sensing unit 4, and the light guiding unit 5 within the cavity 101. Specifically, in this embodiment, referring to... Figure 1 and Figure 3 As shown, the cavity 101 is also provided with a circuit board 6, which is connected to each set of transmitting and receiving elements provided on the frame 1, and the signal transmitting unit 2, the sensing unit 4 and the light guiding unit 5 are specifically provided on the circuit board 6.

[0086] In other words, the aforementioned circuit board 6 is an existing printed circuit board within the frame 1 used to connect the various sets of transmitting and receiving elements. By placing the signal transmitting unit 2, the sensing unit 4, and the light guiding unit 5 on this circuit board 6, on the one hand, since there is no need to separately install components for the signal transmitting unit 2, the sensing unit 4, and the light guiding unit 5, it is convenient to install the signal transmitting unit 2, the sensing unit 4, and the light guiding unit 5 within the frame 1, reducing the manufacturing and installation costs of the components; on the other hand, since the control mechanism of the interactive flat panel is also located on this circuit board 6, placing the signal transmitting unit 2 and the sensing unit 4 on this circuit board 6 also facilitates the wiring connection between them and the control mechanism of the interactive flat panel.

[0087] In this embodiment, the signal transmitting unit 2 can be an infrared emitter, meaning that the light emitted by the signal transmitting unit 2 can be infrared light. The touch button body 3 is a light-transmitting button that allows infrared light to pass through. It should be noted that a light-transmitting button that allows infrared light to pass through means that the light-transmitting button only allows infrared light to pass through. The touch button body is, for example, made of engineering plastic that only allows infrared light to pass through. The touch button body 3 can also be made of other materials that allow infrared light to pass through. Moreover, the signal transmitting unit 2 is not limited to an infrared emitter; it can also be an emitter of light of other wavelengths. In this case, the touch button body 3 is a light-transmitting button that only allows light of the corresponding wavelength to pass through.

[0088] It should be noted that the transmitter in this embodiment includes, but is not limited to, an infrared transmitter. For example, it can also be a capacitive transmitter, an electromagnetic transmitter, a resistive sensor, etc.

[0089] In this embodiment, the signal transmitting unit 2 and the sensing unit 4 are integrated on the same chip 8, and the signal transmitting unit 2 and the sensing unit 4 are arranged side by side on the chip 8. The side-by-side arrangement of the signal transmitting unit 2 and the sensing unit 4 on the chip 8 means that the signal transmitting unit 2 and the sensing unit 4 are located on the same surface of the chip 8, and are spaced apart along the length or width direction of the chip 8. It should be noted that the chip can be an existing product, and its structure will not be described in detail here.

[0090] This embodiment further provides a structure for arranging the chip 8 and the light guide unit 5. Specifically, referring to... Figure 4 and Figure 5 As shown, in this embodiment, a groove 505 is provided on the housing 54; the first entrance hole 501 and the second exit hole 504 are respectively disposed on the bottom surface of the groove 505. The chip 8 is disposed in the groove 505, that is, the signal transmitting unit 2 and the sensing unit 4 are disposed in the groove 505, and the signal transmitting unit 2 is opposite to the first entrance hole 501, and the sensing unit 4 is opposite to the second exit hole 504.

[0091] By setting a groove 505 on the housing 54 and embedding the chip in the groove 505, on the one hand, compared with setting the chip 8 on the outside of the housing 54, embedding the chip 8 in the groove 505 can reduce the space occupied by the chip 8 and the light guide unit 5, which facilitates their arrangement on the circuit board 6; on the other hand, embedding the chip 8 in the groove 505 can also reduce the interference of external light.

[0092] This embodiment also provides a specific arrangement structure of the chip 8 and the light guide unit 5, see reference. Figure 3As shown, the light guide unit 5 is attached and fixed to the circuit board 6, and the groove 505 on the light guide unit 5 faces the circuit board 6. The chip is attached and fixed to the circuit board 6 and located in the groove 505. The light emitted by the signal transmitting unit 2 is perpendicular to the light passing through the touch button body 3. The light guide unit 5 includes a reflective surface 55, and the angle between the reflective surface 55 and the light emitted by the signal transmitting unit 2 is 45°.

[0093] In this embodiment, the first light guide 51 and the second light guide 52 have the same structure. This embodiment will use the first light guide 51 as an example for description; see reference Figure 3 and 5 As shown, the first light guide 51 in this embodiment is a square columnar shape. It is made of a light-transmitting material, allowing light to pass through. The first light guide 51 is vertically inserted into the corresponding cavity. A sloping plane is provided on the side of the first light guide 51 facing away from the chip, forming the aforementioned reflective surface 55. The angle between the reflective surface 55 and the light emitted by the signal transmitting unit 2 is 45°; or, the angle α between the reflective surface 55 and the bottom plane of the first light guide 51 is 45°. The reflective surface 55 can reflect light; for example, a reflective material can be coated on the back of the reflective surface 55.

[0094] By setting the first light guide 51 and the second light guide 52 as described above, reference Figure 4 As shown, the light emitted by the signal transmitting unit 2 is directed toward the first light guide 51. After being reflected by the reflective surface 55, the light is directed toward and passes through the touch button body 3. The light passing through the touch button body 3 is blocked by an external object and reflected. After being reflected by the reflective surface on the second light guide 52, it is directed toward the sensing unit 4 and detected by the sensing unit 4.

[0095] Example 2

[0096] Based on the touch buttons provided in Embodiment 1 of the present invention, Embodiment 2 of the present invention provides an interactive flat panel, as shown in the reference. Figure 6 As shown, the interactive flat panel includes a display screen 7 and a touch button as in Embodiment 1. The display screen 7 is disposed on the touch button, and the frame 1 of the touch button is located outside the display screen 7.

[0097] In this embodiment, the aforementioned touch button bodies 3 are respectively provided on two opposite sides of the display screen, allowing the user to control the interactive flat panel by touching the touch button bodies 3. It should be noted that the aforementioned touch button bodies 3 can also be one, three, or other quantities.

[0098] It should be noted that the display screen in this embodiment can be a capacitive screen, resistive screen, electromagnetic screen, or infrared screen. Generally, the touch screen can receive touch operations input by the user through their finger or an input device. The input device includes, but is not limited to, a stylus, an infrared pen, or a capacitive pen.

[0099] The interactive flat panel of this embodiment adopts the touch buttons as in Embodiment 1. Because the touch buttons have low cost and are easy to operate, the interactive flat panel has a low cost and good usability.

[0100] In the description of the embodiments of the present invention, it should be understood that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances. The terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In the description of the present invention, "a plurality of" means two or more, unless otherwise precisely specified.

[0101] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A touch button, characterized in that, include: A frame for being configured on the edge of an interactive flat panel, the frame having a cavity inside; A signal transmitting unit is disposed within the cavity, and the signal transmitting unit is used to emit light. The touch button body is disposed on the frame and located in the path of light propagation, and the touch button body is a light-transmitting button that allows light to pass through; A sensing unit is disposed within the cavity, and the sensing unit is used to receive the reflected light that passes through the touch button body and is reflected back to the touch button body; A light guide unit includes a first light guide, a second light guide, a housing, and a light shield disposed between the first light guide and the second light guide. The housing has a cavity, and the light shield is a baffle disposed in the cavity. The baffle divides the cavity into two chambers, and the first light guide and the second light guide are respectively installed in the two chambers. The housing is provided with a first entrance hole and a first exit hole corresponding to the first light guide, and the housing is provided with a second entrance hole and a second exit hole corresponding to the second light guide; The housing is provided with a groove, and the bottom surface of the groove is provided with the first injection hole and the second injection hole; The signal transmitting unit and the sensing unit are integrated on the same chip, the chip is disposed in the groove, and the signal transmitting unit is opposite to the first entrance hole, and the sensing unit is opposite to the second exit hole; Both the first light guide and the second light guide have an inclined plane on the side opposite to the chip. The inclined plane on the first light guide is a first reflective surface, and the inclined plane on the second light guide is a second reflective surface. The first light guide is opposite to the signal emitting unit. The signal emitting unit emits light through the first entrance hole and into the first light guide. The first light guide reflects the light emitted by the signal emitting unit through the first reflective surface and then through the first exit hole to the touch button body. The second light guide is opposite to the sensing unit. The second light guide is used to reflect the light that has been reflected into the second entrance aperture through the second reflective surface and then through the second exit aperture to the sensing unit.

2. The touch button according to claim 1, characterized in that, The cavity contains a circuit board, and the signal transmitting unit, the sensing unit, and the light guiding unit are disposed on the circuit board.

3. The touch button according to any one of claims 1-2, characterized in that, The signal transmitting unit and the sensing unit are arranged side by side on the chip.

4. The touch button according to any one of claims 1-2, characterized in that, The light emitted by the signal transmitting unit is perpendicular to the light passing through the touch button body; The angle between the first reflective surface and the light emitted by the signal transmitting unit is 45°.

5. The touch button according to any one of claims 1 to 2, characterized in that, The light emitted by the signal transmitting unit is infrared light.

6. An interactive flat panel, characterized in that: Includes a display screen and touch buttons as described in any one of claims 1 to 5; The display screen is mounted on the touch button, the frame of the touch button is located outside the display screen, and the touch button body is located on opposite sides of the display screen.

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