A hidden touch screen and sound device

Abstract

The utility model relates to touch screen technical field discloses a kind of hidden touch screen, comprising: shell, the inside of shell is equipped with pattern mark;Touch module is located in the inside of shell, and touch module includes spaced touch capacitor and contact touch capacitor, and contact touch capacitor is attached with the inner wall at the pattern mark of shell;Emitting part and control module are located in the inside of shell, and the receiving end of control module is electrically connected with spaced touch capacitor and contact touch capacitor, and the driving end of control module is electrically connected with emitting part.The utility model is by being equipped with pattern mark in the inside of shell, pattern mark can avoid fading or wear due to friction, scratch or environmental factor, leading to touch mark blurred, influence user experience;In addition, by being equipped with spaced touch capacitor and contact touch capacitor, pattern mark can not be displayed when user is not close, pattern mark is displayed when user is close, reach hidden effect, improve the intelligentization and interactive experience of product.

Description

Technical Field

[0001] This utility model relates to the field of touch screen technology, specifically to a hidden touch screen and audio device. Background Technology

[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 silkscreened symbols displayed on the device casing to identify touch areas and their corresponding functions. However, these silkscreened symbols are prone to fading or wear due to friction, scratches, or environmental factors (such as moisture and ultraviolet radiation) over time, resulting in unclear touch markings and affecting the user experience.

[0004] Therefore, there is an urgent need for a new type of touch interaction technology to solve the inherent defects of screen printing solutions, while improving the intelligence level of products and user experience. Utility Model Content

[0005] In view of this, the present invention provides a hidden touch screen and audio device to solve the problem that existing screen printing solutions are prone to fading or wear due to friction, scratches or environmental factors (such as moisture and ultraviolet rays), resulting in unclear touch markings and affecting user experience.

[0006] In a first aspect, this utility model provides a hidden touch screen, comprising: The outer casing, the interior of which is provided with patterned markings; A touch module is disposed inside the housing. The touch module includes a non-contact touch capacitor and a contact touch capacitor. The contact touch capacitor is attached to the inner wall of the housing at the pattern mark. The light-emitting element and control module are located inside the housing. The receiving end of the control module is electrically connected to the air-touch capacitor and the contact touch capacitor, and the driving end of the control module is electrically connected to the light-emitting element.

[0007] Beneficial Effects: This utility model features both air-touch capacitors and contact touch capacitors on the inner side of the casing. When a user approaches a device with a hidden touch screen, the capacitance of the air-touch capacitor changes. Since the receiving end of the control module is electrically connected to the air-touch capacitor, the control module can detect the user's approach and then drive the light-emitting element to emit light, making the pattern visible to the user. When the user touches the pattern, the capacitance of the contact touch capacitor, which is in contact with the inner wall of the pattern on the casing, changes. Since the receiving end of the control module is also electrically connected to the contact touch capacitor, the control module can recognize the pattern touched by the user and execute the function corresponding to the pattern. This embodiment places the pattern inside the casing, preventing it from fading or wearing due to friction, scratches, or environmental factors, thus avoiding blurry touch indicators and affecting the user experience. Furthermore, by setting both air-touch and contact touch capacitors, the pattern can remain hidden when the user is not nearby and only appear when the user approaches, achieving a concealment effect and improving the product's intelligence and interactive experience.

[0008] In one alternative embodiment, the housing includes a transparent film and a plastic layer, which are injection molded together, and a patterned logo is printed on the side of the transparent film that is connected to the plastic layer.

[0009] In one alternative embodiment, the air-touch capacitor is positioned close to the contact touch capacitor.

[0010] In one optional implementation, 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 via a serial port.

[0011] In one optional embodiment, 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, and the driving terminal of the LED driver chip is electrically connected to the cathode of the light-emitting diode, while the anode of the light-emitting diode is connected to a power supply.

[0012] In one alternative embodiment, the light-emitting element further includes a decoupling capacitor connected in parallel with the light-emitting diode.

[0013] Secondly, this utility model provides an audio device, including the hidden touch screen described in any of the above embodiments.

[0014] Beneficial Effects: The audio device provided by this utility model has both a non-contact touch capacitor and a contact touch capacitor on the inner side of the casing. When a user approaches the device with a hidden touch screen, the capacitance of the non-contact touch capacitor changes. Since the receiving end of the control module is electrically connected to the non-contact touch capacitor, the control module can detect the user's approach and then drive the light-emitting element to emit light through the driving end of the control module, so that the user can see the pattern mark. When the user touches the pattern mark, the capacitance of the contact touch capacitor that is in contact with the inner wall of the pattern mark on the casing changes. 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 and thus execute the function corresponding to the pattern mark. In this embodiment, the pattern mark is placed inside the casing, 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 setting the non-contact touch capacitor and the contact touch capacitor, the pattern mark can be hidden when the user is not close and displayed when the user is close, achieving a hiding effect and improving the intelligence and interactive experience of the product. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a hidden touch screen provided in an embodiment of the present invention; Figure 2 This is a circuit diagram of a light-emitting element for a hidden touch screen provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of a touch recognition chip for a hidden touch screen provided in an embodiment of this utility model; Figure 4 This is a logic flowchart of a control method for an audio device application provided by an embodiment of this utility model.

[0017] In the diagram: 1. Outer shell; 2. Light-emitting element; 3. Control module; 4. Touch module. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] This utility model embodiment provides a hidden touch screen, such as Figure 1 As shown, it includes: Casing 1, the interior of which is provided with patterned markings; A touch module 4 is disposed inside the outer casing 1. The touch module 4 includes a non-contact touch capacitor and a contact touch capacitor. The contact touch capacitor is attached to the inner wall of the outer casing 1 at the pattern mark. The light-emitting element 2 and the control module 3 are disposed 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.

[0020] This invention features a non-contact touch capacitor and a contact touch capacitor on the inner side of the outer casing 1. When a user approaches a device with a hidden touch screen, the capacitance of the non-contact touch capacitor changes. Since the receiving end of the control module 3 is electrically connected to the non-contact touch capacitor, the control module 3 can detect the user's approach and then drive the light-emitting element 2 to emit light so that the user can see the pattern mark. When the user touches the pattern mark, the capacitance of the contact touch capacitor that is in contact with the inner wall of the pattern mark on the outer casing 1 changes. Since the receiving end of the control module 3 is also electrically connected to the contact touch capacitor, the control module 3 can detect the pattern mark touched by the user and execute the function corresponding to the pattern mark. In this embodiment, the pattern mark is placed inside the outer casing 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 setting the non-contact touch capacitor and the contact touch capacitor, the pattern mark can be hidden when the user is not close and displayed when the user is close, achieving a hiding effect and improving the intelligence and interactive experience of the product.

[0021] For example, refer to Figure 1The touch module 4 includes capacitors A through E. Capacitors A and B are air-touch capacitors, while capacitors C, D, and E are contact-touch capacitors. When a person / hand approaches the device (casing 1), the capacitance of the touch module 4 changes. This change in capacitance is transmitted to the control module 3. When the change in capacitance of the air-touch capacitors (capacitors A and B) exceeds a set sensing threshold, the control module 3 sends a command to the light-emitting element 2. The light-emitting element 2 illuminates the hidden touch area (the area on the casing 1 with the pattern markings), thus displaying the function silkscreen of the touch area. The person can then continue to touch the corresponding function button area (capacitors C, D, and E), causing a change in the capacitance of the contact-touch capacitors. When the change in capacitance of the air-touch capacitors (capacitors C, D, and E) exceeds the set sensing threshold, the control module 3 sends a command to perform functional operations and interactions on the device. For example, a change in the brightness of capacitor C represents volume increase, and a change in the brightness of capacitor D represents volume decrease, etc.

[0022] Furthermore, the outer casing 1 includes a transparent film and a plastic layer, which are injection molded together, and a pattern mark is printed on the side where the transparent film is connected to the plastic layer.

[0023] Specifically, the outer shell 1 is an IML outer shell 1, which is made by the IML process (in-mold injection molding). The IML process is a process in which a printed film is embedded in an injection mold and integrally formed with a plastic substrate. The printed film has a pattern logo.

[0024] Furthermore, there are multiple pattern markers, and the number of contact touch capacitors is the same as the number of pattern markers, with each pattern marker and each contact touch capacitor corresponding to the other.

[0025] Specifically, when a device requires multiple interactive operations, such as volume up, volume down, next song, etc., a pattern icon and corresponding touch capacitive can be set for each interactive operation.

[0026] Furthermore, the air-touch capacitor is positioned close to the contact touch capacitor.

[0027] It is understandable that, in order to facilitate user interaction, when a user lights up the hidden touch area (the area with the pattern mark on the shell 1) by touching the capacitive touch, it is not necessary to move too far to the hidden touch area (the area with the pattern mark on the shell 1).

[0028] Furthermore, the control module 3 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 via serial port.

[0029] Specifically, refer to Figure 3 For the provided touch recognition chip example, the air-to-touch capacitor and the contact-to-touch capacitor are connected through pins such as CS0, CS1, CS2, CS3 and CS4, the capacitance of the air-to-touch capacitor and the contact-to-touch capacitor are received, and the serial port of the control chip is communicated through the SDA and SCL pins.

[0030] 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, while the anode of the light-emitting diode is connected to a power supply.

[0031] Specifically, refer to Figure 2 The provided example of an LED driver chip and an example of the connection between the LED driver chip and the light-emitting diode shows that the LED driver chip connects the cathode of the light-emitting diode through pins such as LED3, LED4, LED23, and LED24.

[0032] Furthermore, the light-emitting element 2 also includes a decoupling capacitor, which is connected in parallel with the light-emitting diode.

[0033] Specifically, refer to Figure 2 The decoupling capacitors include the third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, and the sixth capacitor C6. The third capacitor C3 is connected in parallel with the eighth LED VD8, the fourth capacitor C4 is connected in parallel with the ninth LED VD9, the fifth capacitor C5 is connected in parallel with the tenth LED VD10, and the sixth capacitor C6 is connected in parallel with the eleventh LED 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.

[0034] This utility model also provides an audio device, including the hidden touch screen described in any of the above embodiments.

[0035] The audio device provided by this utility model has a non-contact touch capacitor and a contact touch capacitor on the inner side of the outer shell 1. When a user approaches the device with a hidden touch screen, the capacitance of the non-contact touch capacitor changes. Since the receiving end of the control module 3 is electrically connected to the non-contact touch capacitor, the control module 3 can detect the user's approach and then drive the light-emitting element 2 to emit light so that the user can see the pattern mark. When the user touches the pattern mark, the capacitance of the contact touch capacitor that is attached to the inner wall of the pattern mark on the outer shell 1 changes. Since the receiving end of the control module 3 is also electrically connected to the contact touch capacitor, the control module 3 can detect the pattern mark touched by the user and execute the function corresponding to the pattern mark. In this embodiment, the pattern mark is set inside the outer shell 1, which can avoid the pattern mark fading or wear due to friction, scratches or environmental factors, resulting in unclear touch marks and affecting the user experience. In addition, by setting the non-contact touch capacitor and the contact touch capacitor, the pattern mark can be not displayed when the user is not close and the pattern mark is displayed when the user is close, achieving a hiding effect and improving the intelligence and interactive experience of the product.

[0036] This utility model also provides a control method for an audio device, which is applied to the audio device described in the above embodiments. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0037] Figure 4 This is a flowchart of a control method for an audio device according to an embodiment of the present invention, such as... Figure 4 As shown, the process includes the following steps: Step S100: Obtain the capacitance of the air-touch capacitor in real time.

[0038] Specifically, when a user approaches a device with a hidden touch screen, the capacitance of the air-touch capacitor changes. Since the receiving end of the control module 3 is electrically connected to the air-touch capacitor, it can receive the capacitance of the air-touch capacitor in real time.

[0039] Step S200: When the capacitance change of the air-touch capacitor exceeds the set first sensing threshold, drive the light-emitting element 2 to work and start acquiring the capacitance of the touch capacitor.

[0040] Specifically, the control module 3 receives the capacitance of each contact capacitor and compares the change in capacitance of each contact capacitor over a set time period with a set first sensing threshold. If the change in capacitance of all contact capacitors exceeds the first sensing threshold, the light-emitting element 2 will be driven to work and begin to acquire the capacitance of the contact capacitors.

[0041] It is understandable that the change in the set duration can be the difference between the maximum and minimum capacitance values ​​within the preset duration. This difference can be used to determine whether the capacitance fluctuation is caused by air-touching of the screen.

[0042] Step S300: When the capacitance change of the touch capacitor exceeds the set second sensing threshold, control the speaker device to perform the function corresponding to the touch capacitor whose capacitance change exceeds the set second sensing threshold.

[0043] Specifically, the control module 3 receives the capacitance of each contact touch capacitor, compares the instantaneous change in capacitance of each contact touch capacitor with a set second sensing threshold, and executes the function corresponding to the contact touch capacitor whose change exceeds the second sensing threshold if the change of any contact touch capacitor exceeds the second sensing threshold.

[0044] It is understandable that the instantaneous change can be the difference between the current capacitance and the capacitance at the previous moment. This difference can be used to determine whether the capacitance fluctuation is caused by the screen being touched.

[0045] In step S400, when the change in capacitance of the air-touch capacitor exceeds the set third sensing threshold, the operation of the light-emitting element 2 is stopped, and the acquisition of the capacitance of the touch capacitor is terminated.

[0046] Specifically, after the light-emitting element 2 is driven to work in step S200, the control module 3 will still receive the capacitance of each contactless touch capacitor, take the difference between the current capacitance of each contactless touch capacitor and the capacitance when the light-emitting element 2 is driven to work as the change amount, and compare it with the set third sensing threshold. If the change amount of all contactless touch capacitors exceeds the third sensing threshold, the light-emitting element 2 will stop working and the acquisition of the capacitance of the contact touch capacitor will end.

[0047] The control method for audio equipment provided by this utility model involves providing a non-contact touch capacitor and a contact touch capacitor on the inner side of the audio equipment housing 1. When a user approaches the device with a hidden touch screen, the capacitance of the non-contact touch capacitor changes. Since the receiving end of the control module 3 is electrically connected to the non-contact touch capacitor, the control module 3 can detect the user's approach and then drive the light-emitting element 2 to emit light so that the user can see the pattern mark. When the user touches the pattern mark, the capacitance of the contact touch capacitor that is in contact with the inner wall of the pattern mark on the housing 1 changes. Since the receiving end of the control module 3 is also electrically connected to the contact touch capacitor, the control module 3 can detect the pattern mark touched by the user and thus execute the function corresponding to the pattern mark. In this embodiment, the pattern mark is placed 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 setting up non-contact touch capacitors and contact touch capacitors, this control method can prevent the pattern mark from being displayed when the user is not approaching and display the pattern mark when the user approaches, achieving the effects of hiding and saving energy, and improving the intelligence and interactive experience of the product.

[0048] It should be understood that the various parts of this utility model can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions 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 one or more embodiments or examples.

[0050] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A hidden touch screen, characterized in that, include: The outer casing, the interior of which is provided with patterned markings; A touch module is disposed inside the housing. The touch module includes a non-contact touch capacitor and a contact touch capacitor. The contact touch capacitor is attached to the inner wall of the housing at the pattern mark. The light-emitting element and control module are located inside the housing. The receiving end of the control module is electrically connected to the air-touch capacitor and the contact touch capacitor, and the driving end of the control module is electrically connected to the light-emitting element.

2. The hidden touch screen according to claim 1, characterized in that, The outer shell includes a transparent film and a plastic layer, which are injection molded together, and a pattern 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 markers, and the number of contact touch capacitors is the same as the number of pattern markers, with each pattern marker and each contact touch capacitor corresponding to the other.

4. The hidden touch screen according to claim 3, characterized in that, The air-touch capacitor is positioned 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 via serial port.

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, and the driving terminal of the LED driver chip is electrically connected to the cathode of the light-emitting diode, while the anode of the light-emitting diode is connected to a power supply.

7. The hidden touch screen according to claim 6, characterized in that, The light-emitting element also includes a decoupling capacitor, which is connected in parallel with the light-emitting diode.

8. An audio device, characterized in that, The audio device includes the hidden touch screen as described in any one of claims 1-7.

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