Hidden touch screen, sound equipment and control method thereof

Abstract

The invention relates to the technical field of touch screens, and discloses a hidden touch screen, which comprises a shell, a first touch screen and a second touch screen, the touch module is arranged on the inner side of the shell and comprises a distance touch capacitor and a contact touch capacitor, and the contact touch capacitor is attached to the inner wall of the pattern mark of the shell; the light-emitting part and the control module are arranged on the inner side of the shell, the receiving end of the control module is electrically connected with the distance touch capacitor and the contact touch capacitor, and the driving end of the control module is electrically connected with the light-emitting part. The pattern mark is arranged in the shell, so that the situation that the pattern mark fades or is abraded due to friction, scraping or environmental factors, the touch mark is blurred, and the user experience is affected can be avoided; in addition, by arranging the air touch capacitor and the contact touch capacitor, the pattern mark is not displayed when the user does not approach, and the pattern mark is displayed when the user approaches, so that the hiding effect is achieved, and the intellectualization and interaction experience of the product are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of touch screens, and in particular to a hidden touch screen, an audio device and a control method thereof. Background Art

[0002] In recent years, with the rapid development of smart homes and consumer electronics, audio equipment has gradually evolved towards intelligence and diversified interaction.

[0003] Traditional touch interaction solutions typically use silkscreen symbols on the device casing to identify touch areas and their corresponding functions. However, silkscreen symbols can easily fade or wear out over time due to friction, scratches, or environmental factors (such as moisture and ultraviolet rays), resulting in blurred touch identification and a poor user experience.

[0004] Therefore, a new touch interaction technology is urgently needed to solve the inherent defects of the silk screen solution and improve the intelligence level of the product and user experience. Summary of the Invention

[0005] In view of this, the present invention provides a hidden touch screen, audio equipment and control method thereof to solve the problem that existing silk screen printing solutions are easily faded or worn due to friction, scratches or environmental factors (such as moisture, ultraviolet rays), resulting in unclear touch marks and affecting user experience.

[0006] In a first aspect, the present invention provides a hidden touch screen, comprising: a shell, wherein a pattern mark is provided on the interior of the shell; A touch module provided on the inner side of the housing, the touch module including an air touch capacitor and a contact touch capacitor, the contact touch capacitor being in contact with the inner wall of the housing at the pattern mark; A light emitting component and a control module are provided inside the housing, a receiving end of the control module is electrically connected to the air touch capacitor and the contact touch capacitor, and a driving end of the control module is electrically connected to the light emitting component.

[0007] Beneficial effect: The present invention provides an air touch capacitor and a contact touch capacitor on the inner side of the shell. When the user approaches a device with a hidden touch screen, the capacitance of the air touch capacitor will change. Since the receiving end of the control module is electrically connected to the air touch capacitor, the control module can recognize the user's approach, and then drive the light-emitting part to emit light through the driving end of the control module, so that the user can see the pattern mark. The user then touches the position of the pattern mark, which will cause the capacitance of the contact touch capacitor that is in contact with the inner wall of the pattern mark of the shell to change. Since the receiving end of the control module is also electrically connected to the contact touch capacitor, the control module can recognize the pattern mark touched by the user, thereby executing the function corresponding to the pattern mark. In this embodiment, the pattern mark is set inside the shell, which can prevent the pattern mark from fading or wearing due to friction, scratches or environmental factors, resulting in unclear touch marks and affecting user experience. In addition, by providing the air touch capacitor and the contact touch capacitor, the pattern mark will not be displayed when the user is not close, and will be displayed when the user is close, thereby achieving a hidden effect and improving the intelligence and interactive experience of the product.

[0008] In an optional embodiment, the housing includes a transparent film and a plastic layer, the transparent film and the plastic layer are connected by injection molding, and a pattern logo is printed on the side where the transparent film is connected to the plastic layer.

[0009] In an optional implementation, the air touch capacitor is arranged close to the contact touch capacitor.

[0010] In an optional embodiment, the control module includes a control chip and a touch recognition chip, the receiving end of the touch recognition chip is electrically connected to the air touch capacitor and the contact touch capacitor, and the control chip and the touch recognition chip communicate with each other via serial ports.

[0011] In an optional embodiment, the light-emitting component includes an LED driver chip and a light-emitting diode. The LED driver chip communicates with the control chip via a serial port, and the driving end of the LED driver chip is electrically connected to the cathode of the light-emitting diode, and the anode of the light-emitting diode is connected to a power supply.

[0012] In an optional implementation, the light-emitting element further includes a decoupling capacitor, and the decoupling capacitor is connected in parallel with the light-emitting diode.

[0013] In a second aspect, the present invention provides an audio device comprising the hidden touch screen described in any one of the above embodiments.

[0014] Beneficial effect: The audio device provided by the present invention is provided with an air touch capacitor and a contact touch capacitor on the inner side of the shell. When the user approaches the device with a hidden touch screen, the capacitance of the air touch capacitor will change. Since the receiving end of the control module is electrically connected to the air touch capacitor, the control module can recognize the user's approach, and then drive the light-emitting part to emit light through the driving end of the control module, so that the user can see the pattern mark. The user then touches the position of the pattern mark, which will cause the capacitance of the contact touch capacitor that is in contact with the inner wall of the pattern mark of the shell to change. Since the receiving end of the control module is also electrically connected to the contact touch capacitor, the control module can recognize the pattern mark touched by the user, thereby executing the function corresponding to the pattern mark. In this embodiment, the pattern mark is set inside the shell, which can prevent the pattern mark from fading or wearing due to friction, scratches or environmental factors, resulting in unclear touch marks and affecting user experience. In addition, by setting the air touch capacitor and the contact touch capacitor, the pattern mark can be not displayed when the user is not close, and the pattern mark can be displayed when the user is close, thereby achieving a hidden effect and improving the intelligence and interactive experience of the product.

[0015] In a third aspect, the present invention provides a method for controlling an audio device, which is applied to the audio device according to the second aspect, the method comprising: Get the capacitance of the air touch capacitor in real time; When the capacitance change of the air touch capacitor exceeds a set first sensing threshold, driving the light-emitting element to work and starting to obtain the capacitance of the contact touch capacitor; When the capacitance change of the touch capacitor exceeds a set second sensing threshold, controlling the speaker device to execute a function corresponding to the touch capacitor whose capacitance change exceeds the set second sensing threshold; When the capacitance change of the air touch capacitor exceeds a set third sensing threshold, the light emitting element stops working and the acquisition of the capacitance of the contact touch capacitor ends.

[0016] Beneficial effects: The control method of the audio device provided by the present invention is provided with an air touch capacitor and a contact touch capacitor on the inner side of the audio device shell. When the user approaches the device with a hidden touch screen, the capacitance of the air touch capacitor will change. Since the receiving end of the control module is electrically connected to the air touch capacitor, the control module can recognize the user's approach, and then drive the light-emitting part to emit light through the driving end of the control module, so that the user can see the pattern mark. The user then touches the position of the pattern mark, which will cause the capacitance of the contact touch capacitor that is in contact with the inner wall of the pattern mark of the shell to change. Since the receiving end of the control module is also electrically connected to the contact touch capacitor, the control module can recognize the pattern mark touched by the user, thereby executing the function corresponding to the pattern mark. In this embodiment, the pattern mark is set inside the shell, which can prevent the pattern mark from fading or wearing due to friction, scratches or environmental factors, resulting in unclear touch marks and affecting user experience. In addition, by setting the air touch capacitor and the contact touch capacitor, the control method can be used to not display the pattern mark when the user is not close, and display the pattern mark when the user is close, thereby achieving concealment and energy saving effects, and improving the intelligence and interactive experience of the product.

[0017] In an optional embodiment, the method further includes: When the capacitance change of the air touch capacitor exceeds a set first sensing threshold, starting timing; When the capacitance change of the contact touch capacitor exceeds a set second sensing threshold and the capacitance change of the air touch capacitor exceeds a set third sensing threshold, stopping the timing; If the timing duration exceeds a preset duration, a reminder message is issued, wherein the reminder message is used to inform the user that there is an obstruction in front of the audio device, which affects the use of the audio device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a structural diagram of a hidden touch screen provided by an embodiment of the present invention; Figure 2 This is a circuit diagram of a light-emitting element of a hidden touch screen provided by an embodiment of the present invention; Figure 3 Schematic diagram of a touch recognition chip for a hidden touch screen provided by an embodiment of the present invention; Figure 4 This is a logic flow chart of a method for controlling an audio device provided by an embodiment of the present invention; Figure 5 This is a logic flow chart of another method for controlling an audio device provided by an embodiment of the present invention.

[0020] In the figure: 1. Housing; 2. Light-emitting component; 3. Control module; 4. Touch module. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0022] The embodiment of the present invention provides a hidden touch screen, such as Figure 1 Shown, including: A housing 1, wherein a pattern mark is provided inside the housing 1; A touch module 4 is provided inside the housing 1, the touch module 4 including an air touch capacitor and a contact touch capacitor, the contact touch capacitor being in contact with the inner wall of the housing 1 at the pattern mark; The light emitting element 2 and the control module 3 are arranged inside the housing 1 , the receiving end of the control module 3 is electrically connected to the air touch capacitor and the contact touch capacitor, and the driving end of the control module 3 is electrically connected to the light emitting element 2 .

[0023] The present invention provides an air touch capacitor and a contact touch capacitor on the inner side of the shell 1. When a user approaches a device with a hidden touch screen, the capacitance of the air touch capacitor will change. Since the receiving end of the control module 3 is electrically connected to the air touch capacitor, the control module 3 can recognize the user's approach, and then drive the light-emitting element 2 to emit light through the driving end of the control module 3, so that the user can see the pattern mark. The user then touches the pattern mark position, which will cause the capacitance of the contact touch capacitor that is in contact with the inner wall of the pattern mark of the shell 1 to change. Since the receiving end of the control module 3 is also electrically connected to the contact touch capacitor, the control module 3 can recognize the pattern mark touched by the user, thereby executing the function corresponding to the pattern mark. In this embodiment, the pattern mark is provided inside the shell 1, which can prevent the pattern mark from fading or wearing due to friction, scratches or environmental factors, resulting in unclear touch marks and affecting user experience. In addition, by providing the air touch capacitor and the contact touch capacitor, the pattern mark can be not displayed when the user is not close, and the pattern mark can be displayed when the user is close, thereby achieving a hidden effect and improving the intelligence and interactive experience of the product.

[0024] For example, refer to Figure 1 The touch module 4 includes capacitors A to E, where capacitors A and B are air touch capacitors, and capacitors C, D, and E are contact touch capacitors. When a person / palm approaches the device (housing 1), the capacitance of the touch module 4 changes audibly, and this change in induced capacitance is transmitted to the control module 3. When the change in the capacitance of the air touch capacitors (capacitors A and B) exceeds the set sensing threshold, the control module 3 will send an instruction to the light-emitting component 2, and the light-emitting component 2 will light up the hidden touch area (the area where the pattern logo is provided on the housing 1), thereby realizing the silk-screen display of the function of the touch area. Then, the person can continue to touch the corresponding function button area (capacitor C, capacitor D, and capacitor E), and then the capacitance of the contact touch capacitor changes. When the change in the capacitance of the air touch capacitors (capacitor C / capacitor D / capacitor E) exceeds the set sensing threshold, the control module 3 will send an instruction to realize the functional operation and interaction of the device. For example, the bright change in the capacitance of the capacitor C represents volume up, and the bright change in the capacitance of the capacitor D represents volume down, etc.

[0025] Furthermore, the housing 1 includes a transparent film and a plastic layer, the transparent film and the plastic layer are connected by injection molding, and a pattern logo is printed on the side where the transparent film and the plastic layer are connected.

[0026] Specifically, the housing 1 is an IML housing 1, which is manufactured by an IML process (in-mold molding). The IML process is a process in which a printed film is embedded in an injection mold and integrally molded with a plastic substrate, wherein the printed film has a pattern logo.

[0027] Furthermore, there are multiple pattern marks, the number of the contact touch capacitors is the same as the number of the pattern marks, and the pattern marks and the contact touch capacitors are arranged in a one-to-one correspondence.

[0028] Specifically, when the device requires multiple interactive operations, such as volume up, volume down, next song, etc., a pattern mark and a corresponding contact touch capacitance can be set for each interactive operation.

[0029] Furthermore, the air touch capacitor is arranged close to the contact touch capacitor.

[0030] It is understandable that in order to facilitate user interaction, when the user lights up the hidden touch area (the area where the pattern logo is provided on the shell 1) through the air touch capacitor, there is no need to move too far to the hidden touch area (the area where the pattern logo is provided on the shell 1).

[0031] Furthermore, the control module 3 includes a control chip and a touch recognition chip, a receiving end of the touch recognition chip is electrically connected to the air touch capacitor and the contact touch capacitor, and the control chip and the touch recognition chip communicate with each other via serial ports.

[0032] Specifically, refer to Figure 3 , is an example of a touch recognition chip provided. It connects the air touch capacitor and the contact touch capacitor through pins such as CS0, CS1, CS2, CS3 and CS4, receives the capacitance of the air touch capacitor and the contact touch capacitor, and communicates with the serial port of the control chip through the SDA and SCL pins.

[0033] Furthermore, the light-emitting element 2 includes an LED driver chip and a light-emitting diode. The LED driver chip communicates with the control chip via a serial port, and the driving end of the LED driver chip is electrically connected to the cathode of the light-emitting diode, and the anode of the light-emitting diode is connected to a power supply.

[0034] Specifically, refer to Figure 2 , which provides an example of an LED driver chip and an example of connecting the LED driver chip to a light-emitting diode. The LED driver chip is connected to the cathode of the light-emitting diode through pins such as LED3, LED4, LED23, and LED24.

[0035] Furthermore, the light emitting element 2 further includes a decoupling capacitor, and the decoupling capacitor is connected in parallel with the light emitting diode.

[0036] Specifically, refer to Figure 2The decoupling capacitors include a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, and a sixth capacitor C6. The third capacitor C3 is connected in parallel with the eighth light-emitting diode VD8, the fourth capacitor C4 is connected in parallel with the ninth light-emitting diode VD9, the fifth capacitor C5 is connected in parallel with the tenth light-emitting diode VD10, and the sixth capacitor C6 is connected in parallel with the eleventh light-emitting diode VD11. By setting the decoupling capacitors, high-frequency noise can be suppressed and power supply can be stabilized. The decoupling capacitors can quickly compensate for transient current and prevent LED flicker; they can also short-circuit the interference of the switching power supply to ground.

[0037] The present invention also provides an audio device comprising the hidden touch screen described in any one of the above embodiments.

[0038] The audio device provided by the present invention is provided with an air touch capacitor and a contact touch capacitor on the inner side of the shell 1. When the user approaches the device with a hidden touch screen, the capacitance of the air touch capacitor will change. Since the receiving end of the control module 3 is electrically connected to the air touch capacitor, the control module 3 can recognize the user's approach, and then drive the light-emitting element 2 to emit light through the driving end of the control module 3, so that the user can see the pattern mark. The user then touches the pattern mark position, which will cause the capacitance of the contact touch capacitor that is in contact with the inner wall of the pattern mark of the shell 1 to change. Since the receiving end of the control module 3 is also electrically connected to the contact touch capacitor, the control module 3 can recognize the pattern mark touched by the user, thereby executing the function corresponding to the pattern mark. In this embodiment, the pattern mark is provided inside the shell 1, which can prevent the pattern mark from fading or wearing due to friction, scratches or environmental factors, resulting in unclear touch marks and affecting the user experience. In addition, by providing the air touch capacitor and the contact touch capacitor, the pattern mark can be not displayed when the user is not close, and the pattern mark can be displayed when the user is close, thereby achieving a hidden effect and improving the intelligence and interactive experience of the product.

[0039] The present invention also provides a method for controlling an audio device, which is applied to the audio device described in the above embodiment. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0040] Figure 4 FIG. 1 is a flow chart of a method for controlling an audio device according to an embodiment of the present invention. Figure 4 As shown, the process includes the following steps: Step S100: obtaining the capacitance of the air touch capacitor in real time.

[0041] Specifically, when a user approaches a device with a hidden touch screen, the capacitance of the air touch capacitor will change. Since the receiving end of the control module 3 is electrically connected to the air touch capacitor, the capacitance of the air touch capacitor can be received in real time.

[0042] Step S200: When the capacitance change of the air touch capacitor exceeds a set first sensing threshold, the light emitting element 2 is driven to operate and the capacitance of the contact touch capacitor is started to be acquired.

[0043] Specifically, the control module 3 receives the capacitance of each air contact capacitor, compares the change in capacitance of each air touch capacitor within a set time period with the set first sensing threshold, and if the change in capacitance of all air touch capacitors exceeds the first sensing threshold, the light-emitting element 2 is driven to work and start acquiring the capacitance of the contact touch capacitor.

[0044] It can be understood that the change in the set time length can be the difference between the maximum capacitance and the minimum capacitance in the preset time length, and the difference can be used to determine whether the capacitance fluctuation is caused by the screen being touched in the air.

[0045] Step S300 , when the capacitance change of the touch capacitor exceeds a set second sensing threshold, controlling the speaker device to execute a function corresponding to the touch capacitor having a capacitance change exceeding the set second sensing threshold.

[0046] Specifically, the control module 3 receives the capacitance of each contact touch capacitor, compares the instantaneous change in the capacitance of each contact touch capacitor with the set second sensing threshold, and if the change in any contact touch capacitor exceeds the second sensing threshold, the function corresponding to the contact touch capacitor whose change exceeds the second sensing threshold will be executed.

[0047] It is understandable that the instantaneous change may be the difference between the current capacitance and the capacitance at the previous moment, and the difference may be used to determine whether the capacitance fluctuation is caused by the screen being touched.

[0048] Step S400: When the capacitance change of the air touch capacitor exceeds a set third sensing threshold, the light emitting element 2 stops working and the acquisition of the capacitance of the contact touch capacitor ends.

[0049] Specifically, after driving the light-emitting component 2 to work in step S200, the control module 3 will still receive the capacitance of each air touch capacitor, and take the difference between the current capacitance of each air touch capacitor and the capacitance when driving the light-emitting component 2 to work as the change, and compare it with the set third sensing threshold. If the change of all air touch capacitors exceeds the third sensing threshold, the light-emitting component 2 will stop working and the acquisition of the capacitance of the contact touch capacitor will end.

[0050] The control method of the audio device provided by the present invention provides an air touch capacitor and a contact touch capacitor on the inner side of the audio device housing 1. When a user approaches the device with a hidden touch screen, the capacitance of the air touch capacitor will change. Since the receiving end of the control module 3 is electrically connected to the air touch capacitor, the control module 3 can recognize the user's approach and then drive the light-emitting element 2 to emit light through the driving end of the control module 3, so that the user can see the pattern mark. The user then touches the position of the pattern mark, causing the capacitance of the contact touch capacitor that is in contact with the inner wall of the housing 1 at the pattern mark to change. Since the receiving end of the control module 3 is also electrically connected to the contact touch capacitor, the control module 3 can recognize the pattern mark touched by the user and thus execute the function corresponding to the pattern mark. In this embodiment, the pattern mark is provided inside the housing 1, which can prevent the pattern mark from fading or wearing due to friction, scratches or environmental factors, resulting in unclear touch marks and affecting the user experience. In addition, by providing the air touch capacitor and the contact touch capacitor, the control method can be used to not display the pattern mark when the user is not close, and display the pattern mark when the user is close, achieving concealment and energy saving effects, and improving the intelligence and interactive experience of the product.

[0051] In this embodiment, a control method for an audio device is also provided, which can be used for the above-mentioned audio device, such as Figure 5 As shown, in addition to the steps of the previous embodiment, the method further comprises the following steps: Step S210: When the capacitance change of the air touch capacitor exceeds a set first sensing threshold, start timing.

[0052] Specifically, the control module 3 receives the capacitance of each air contact capacitor, compares the change in capacitance of each air touch capacitor within the set time period with the set first sensing threshold, and if the change in capacitance of all air touch capacitors exceeds the first sensing threshold, the light-emitting element 2 is driven to work, and timing starts at this time.

[0053] Step S310: When the capacitance change of the contact touch capacitor exceeds a set second sensing threshold and the capacitance change of the air touch capacitor exceeds a set third sensing threshold, stop timing.

[0054] Specifically, the control module 3 receives the capacitance of each contact touch capacitor, compares the instantaneous change in the capacitance of each contact touch capacitor with the set second sensing threshold, and if the change in any contact touch capacitor exceeds the second sensing threshold, the function corresponding to the contact touch capacitor whose change exceeds the second sensing threshold will be executed, and the timing will be stopped at this time; and the control module 3 receives the capacitance of each air touch capacitor, takes the difference between the current capacitance of each air touch capacitor and the capacitance when driving the light-emitting element 2 to work as the change, and compares it with the set third sensing threshold. If the change in all air touch capacitors exceeds the third sensing threshold, the light-emitting element 2 will be stopped, and the timing will also be stopped at this time.

[0055] Step S500: If the timing duration exceeds a preset duration, a reminder message is issued, wherein the reminder message is used to inform the user that there is an obstruction in front of the audio device, which affects the use of the audio device.

[0056] Specifically, when the timing is not stopped, the timing duration is compared with the preset duration in real time. When the timing duration exceeds the preset duration, a reminder message is issued to remind the user that there is an obstruction in front of the audio device, which affects the use of the audio device, so as to avoid the obstruction in front of the audio device affecting the normal sound playback of the audio device and being detrimental to user operation.

[0057] Furthermore, this embodiment further includes the following steps after step S210: when the timed duration reaches a target duration, stopping the operation of the light-emitting element 2 and ending the acquisition of the capacitance of the touch capacitor, wherein the target duration is shorter than a preset duration. By promptly stopping the operation of the light-emitting element 2 and ending the acquisition of the capacitance of the touch capacitor, screen power consumption can be further saved, thereby avoiding energy waste.

[0058] The embodiment of the present invention also provides a computer-readable storage medium. The above-mentioned method according to the embodiment of the present invention can be implemented in hardware, firmware, or implemented as a computer code that can be recorded in a storage medium, or implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and downloaded through a network and will be stored in a local storage medium, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state drive, etc.; further, the storage medium can also include a combination of the above-mentioned types of memory. It can be understood that a computer, a processor, a microprocessor controller or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor or hardware, the method shown in the above embodiment is implemented.

[0059] A portion of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the form in which the computer program instruction exists in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc. Accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium that can be accessed by the computer.

[0060] It should be understood that various parts of the present invention can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0061] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0063] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0064] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A hidden touch screen, characterized in that: include: a shell, wherein a pattern mark is provided on the interior of the shell; A touch module provided on the inner side of the housing, the touch module including an air touch capacitor and a contact touch capacitor, the contact touch capacitor being in contact with the inner wall of the housing at the pattern mark; A light emitting component and a control module are provided inside the housing, a receiving end of the control module is electrically connected to the air touch capacitor and the contact touch capacitor, and a driving end of the control module is electrically connected to the light emitting component.

2. The hidden touch screen according to claim 1, characterized in that: The shell comprises a transparent film and a plastic layer, the transparent film and the plastic layer are connected by injection molding, and a pattern mark is printed on the side where the transparent film is connected to the plastic layer.

3. The hidden touch screen according to claim 1, characterized in that: There are multiple pattern marks, the number of the contact touch capacitors is the same as the number of the pattern marks, and the pattern marks and the contact touch capacitors are arranged in a one-to-one correspondence.

4. The hidden touch screen according to claim 3, characterized in that: The air touch capacitor is arranged close to the contact touch capacitor.

5. The hidden touch screen according to claim 1, characterized in that: The control module includes a control chip and a touch recognition chip. The receiving end of the touch recognition chip is electrically connected to the air touch capacitor and the contact touch capacitor. The control chip and the touch recognition chip communicate with each other through serial ports.

6. The hidden touch screen according to claim 5, characterized in that: The light-emitting element includes an LED driver chip and a light-emitting diode. The LED driver chip communicates with the control chip via a serial port. The driving end of the LED driver chip is electrically connected to the cathode of the light-emitting diode, and the anode of the light-emitting diode is connected to a power supply.

7. The hidden touch screen according to claim 7, characterized in that: The light emitting element further includes a decoupling capacitor, which is connected in parallel with the light emitting diode.

8. An audio device, characterized in that: The speaker device includes the hidden touch screen according to any one of claims 1 to 7.

9. A method for controlling an audio device, characterized in that: Applied to the audio device according to claim 8, the method comprises: Get the capacitance of the air touch capacitor in real time; When the capacitance change of the air touch capacitor exceeds a set first sensing threshold, driving the light-emitting element to work and starting to obtain the capacitance of the contact touch capacitor; When the capacitance change of the touch capacitor exceeds a set second sensing threshold, controlling the speaker device to execute a function corresponding to the touch capacitor whose capacitance change exceeds the set second sensing threshold; When the capacitance change of the air touch capacitor exceeds a set third sensing threshold, the light emitting element stops working and the acquisition of the capacitance of the contact touch capacitor ends.

10. The control method according to claim 9, characterized in that: The method further comprises: When the capacitance change of the air touch capacitor exceeds a set first sensing threshold, starting timing; When the capacitance change of the contact touch capacitor exceeds a set second sensing threshold and the capacitance change of the air touch capacitor exceeds a set third sensing threshold, stopping the timing; If the timing duration exceeds a preset duration, a reminder message is issued, wherein the reminder message is used to inform the user that there is an obstruction in front of the audio device, which affects the use of the audio device.

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