Color film switch panel, control method and electric appliance with color film switch panel

Abstract

The invention provides a color film switch panel, a control method and an electric appliance with the color film switch panel, a preset number of non-contact function buttons, a touch chip and a main control chip are arranged in a printed board circuit of the color film switch panel, and a switch signal is transmitted through electrical connection of the preset number of non-contact function buttons, the touch chip and the main control chip. According to the color film switch panel, the control of the color film switch panel is realized, a man-machine interaction function is realized, the color film switch panel cancels a touch medium, the cost of the color film switch panel is reduced, and the front height of a printed circuit board circuit is reduced at the same time.

Description

Technical Field

[0001] The present application relates to the field of control panels, and in particular to a color film switch panel, a control method and an electrical appliance having the same. Background Art

[0002] At present, electrical appliances have become an indispensable part of people's lives. In the prior art, key touch and key icons are usually used to realize the human-machine exchange function of the electrical control panel. In order to make the color film switch panel display uniform, the touch medium of the key touch is ITO, which is a kind of tin oxide (SnO 2 ) of indium oxide (In 2 O 3 ) composite material, with good transparency, conductivity and chemical stability, can well realize the key touch function, but ITO as a touch medium has high cost, and its corresponding printed circuit board (PCB) front height is more than 9mm, which has strict requirements on the installation space of the whole machine structure. Therefore, how to reduce the cost of color film switch panel while reducing the front height of PCB has become an urgent problem to be solved. Summary of the invention

[0003] In order to solve the above technical problems, the present application proposes a color film switch panel and a control method thereof, and an electrical appliance having the same.

[0004] On the one hand, an embodiment of the present application provides a color film switch panel, the color film switch panel includes a color film layer and a printed circuit board; the color film layer is arranged on the surface of the printed circuit board; the printed circuit board includes a preset number of non-contact function buttons, a touch chip and a main control chip;

[0005] The touch chip is electrically connected to the contactless function button and the main control chip respectively.

[0006] Furthermore, the printed circuit board also includes a preset number of LED side light groups, and the preset number of LED side light groups are arranged on one side or multiple sides of a preset number of non-contact function buttons;

[0007] The LED side light group is electrically connected to the main control chip and the contactless function button respectively.

[0008] Furthermore, the color film switch panel also includes a reflective cavity plastic shell, which is arranged between the color film layer and the printed circuit board; the height of the reflective cavity plastic shell is less than or equal to the sensing distance of a preset number of non-contact function buttons.

[0009] Furthermore, the color film switch panel also includes a light guide plate, on which a light guide channel is arranged, and the light guide plate is arranged on a surface of the reflective cavity plastic shell close to the printed circuit board.

[0010] Furthermore, a reflective film is provided on the surface of the printed circuit board.

[0011] Furthermore, the color film layer includes a non-contact function button area, the non-contact function button area includes a preset number of icons, and the positions of the preset number of icons match the positions of the preset number of non-contact function buttons.

[0012] On the other hand, the embodiment of the present application further provides a control method for the above-mentioned color film switch panel, the method comprising:

[0013] When the distance between the touch object and the non-contact function button of the color film switch panel reaches a preset distance, a coupling capacitor is formed between the non-contact function button and the touch object;

[0014] Based on the touch chip to collect coupling capacitance;

[0015] When it is determined based on the main control chip that the coupling capacitor meets the non-contact function button response condition, the non-contact function button is controlled to respond.

[0016] Further, when it is determined based on the main control chip that the coupling capacitor meets the non-contact function button response condition, the non-contact function button is controlled to respond, including:

[0017] Obtaining a target coupling capacitance, where the target coupling capacitance represents a response condition of a contactless function button;

[0018] When it is determined based on the main control chip that the coupling capacitance is greater than or equal to the target coupling capacitance, the non-contact function button is controlled to respond.

[0019] Furthermore, the method further comprises:

[0020] Based on the main control chip, the transistors in the LED side light group corresponding to the contactless function button are driven to conduct, and the LED light group in the LED side light group is controlled to emit light, so that the light source emitted by the LED light group is processed by the light guide plate and the reflective film and then transmitted to the color film layer, so that the icon corresponding to the contactless function button is illuminated.

[0021] On the other hand, an embodiment of the present application further provides an electrical appliance that uses the above-mentioned color film switch panel.

[0022] The color film switch panel and its control method, and the electrical appliance having the same proposed in the embodiments of the present application, realize control of the color film switch panel by setting a preset number of non-contact function buttons, a touch chip and a main control chip in the printed circuit board of the color film switch panel, and transmit switch signals through the electrical connection of the preset number of non-contact function buttons, the touch chip and the main control chip, so as to realize the human-computer interaction function, and utilize the non-contact response method to eliminate the touch medium of the color film switch panel, reduce the cost of the color film switch panel, and at the same time achieve the reduction of the front height of the printed circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 The figure is a schematic structural diagram of a color film switch panel according to an exemplary embodiment.

[0025] Figure 2 The diagram is a circuit structure diagram of a color film switch panel according to an exemplary embodiment.

[0026] Figure 3 3 are three views of a reflective cavity plastic shell according to an exemplary embodiment.

[0027] Figure 4 is a schematic structural diagram of a light guide plate according to an exemplary embodiment.

[0028] Figure 5 The figure is a flow chart of a method for controlling a color film switch panel according to an exemplary embodiment.

[0029] Figure 6 The figure is a flow chart of controlling a non-contact function button to respond according to an exemplary embodiment.

[0030] Figure 7 It is a schematic diagram of a control circuit structure corresponding to an LED side-lighting lamp group according to an exemplary embodiment.

[0031] Figure 8 The present invention is a hardware structure block diagram of a server of a method for controlling a color film switch panel according to an exemplary embodiment.

[0032] The following is an explanation of the reference numerals in the accompanying drawings of the specification:

[0033] 1-color film layer; 11-contactless function button area; 111-icon;

[0034] 2-printed circuit board; 21-contactless function button; 22-touch chip; 23-main control chip; 24-LED side light group; 25-reflective film;

[0035] 3-reflection cavity plastic shell; 31-light guide plate; 311-light guide channel. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the embodiment of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the embodiment of the present application described here can be implemented in an order other than those illustrated or described here. Thus, the features defined as "first" and "second" can expressly or implicitly include one or more of the features. In the description of the present embodiment, unless otherwise specified, the meaning of "multiple" is two or more. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or server comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0038] The color film switch panel proposed in the embodiment of the present application can be applied to electrical appliances as a display panel or a functional panel, especially household appliances such as range hoods, refrigerators, and dishwashers.

[0039] Figure 1 FIG. 1 is a schematic diagram showing the structure of a color film switch panel according to an exemplary embodiment. Figure 1 As shown, the color film switch panel includes a color film layer 1 and a printed circuit board 2; the color film layer 1 is arranged on the surface of the printed circuit board 2. The printed circuit board 2 includes a preset number of non-contact function buttons 21, a touch chip 22 and a main control chip 23.

[0040] Exemplarily, the color film switch panel is mainly composed of a color film layer 1 and a printed circuit board 2, and the color film layer 1 is arranged on the surface of the printed circuit board 2, that is, arranged above it. The color film layer 1 refers to a special film material that can give rich colors and pattern effects. The printed circuit board 2 is also called a printed circuit board (PCB). A preset number of non-contact function buttons 21, a touch chip 22 and a main control chip 23 are arranged on the printed circuit board 2. The non-contact function buttons correspond to different functions.

[0041] The contactless function button 21 is used to perform human-computer interaction functions, that is, when an object (such as a user's finger or other body part) approaches the contactless function button 21, a coupling capacitance will be formed with the contactless function button 21, and the touch chip will collect this coupling capacitance. When the approaching distance reaches a preset response distance, the value of the coupling capacitance will be greater than the preset coupling capacitance corresponding to the preset response distance. The main control chip will determine whether the contactless function button 21 is started based on the difference between the preset coupling capacitance and the coupling capacitance, and execute its corresponding function.

[0042] The touch chip 22 is used to collect coupling capacitances formed between the preset number of non-contact function buttons 21 and the user object.

[0043] The non-contact function button 21 refers to a button without a touch medium between objects (eg, fingers or other parts of the body of a user).

[0044] Optionally, the contactless function button 21 includes a capacitive sensing system or can serve as a capacitive sensing system.

[0045] Optionally, the material of the color film layer may be PET.

[0046] Optionally, the color filter layer may include a surface protection layer.

[0047] Optionally, the non-contact function button 21 may be made of copper foil (PCB).

[0048] Optionally, the layout of the printed circuit board (PCB) 2 is designed according to a product appearance interface (UI) of a specific product.

[0049] Optionally, the sensing distance of the non-contact function button 21 is preferably 3 mm.

[0050] Optionally, to ensure the response effect of the non-contact function button 21 and prevent the signal from being interfered, there should be no components (including LEDs) and other wiring within 1 mm of the PAD itself and its surroundings.

[0051] Optionally, the non-contact function button 21 includes but is not limited to a lighting button, a disassembly and cleaning button, a power button, an automatic button, a strong or weak button, and the like.

[0052] Optionally, all the non-contact function buttons 21 serve as a TK touch signal sensing area, and their signals can be collected by a touch chip and then transmitted to a TK pin of an MCU processor on a printed circuit board (PCB) 2 .

[0053] like Figure 2 As shown, the touch chip 22 is electrically connected to the non-contact function button 21 and the main control chip 23 respectively.

[0054] Exemplarily, the touch chip 22 is electrically connected to the contactless function button 21 and the main control chip 23 respectively, and is used to obtain signals from the contactless function button 21 and transmit the obtained signals to the main control chip 23, and is used to transmit commands issued by the main control chip 23 to the contactless function button 21.

[0055] In the above electrical connection, the electrical connection between the touch chip 22 and the main control chip 23 is realized by wires in the traditional sense; while the electrical connection between the touch chip 22 and the non-contact function button 21 is not realized by wire connection, but is realized by pin TK connection. Pin TK can ensure that there are no components (including LEDs) and other wiring within 1 mm of the non-contact function button 21 itself and its surroundings.

[0056] Optionally, the contactless function button responds after receiving the command sent by the main control chip 23, and starts the corresponding function according to the corresponding command, including but not limited to controlling the display panel to light up, starting the lighting, starting the switch, etc.

[0057] The embodiment of the present application realizes control of the color film switch panel by setting a preset number of non-contact function buttons, a touch chip and a main control chip in the printed circuit board of the color film switch panel, and transmits switch signals through the electrical connection of the preset number of non-contact function buttons, the touch chip and the main control chip, so as to realize the human-computer interaction function, and utilizes the non-contact response method to eliminate the touch medium of the color film switch panel, reduce the cost of the color film switch panel, and at the same time achieve the reduction of the front height of the printed circuit board.

[0058] As an optional embodiment, the color film layer 1 further includes a non-contact function button area 11 , and the non-contact function button area 11 includes a preset number of icons 12 , and the positions of the preset number of icons 12 match the positions of the preset number of non-contact function buttons 21 .

[0059] For example, Figure 1As shown, the color film layer 1 includes a non-contact function button area 11, and a preset number of icons 111 are arranged in the non-contact function button area 11. The icons 111 are used to display different functions of the appliance. Therefore, the positions of the preset number of icons 111 match the positions of the preset number of non-contact function buttons 21, that is, the preset number of icons 111 are arranged above the preset number of non-contact function buttons 21.

[0060] As an optional embodiment, the printed circuit board 2 also includes a preset number of LED side light groups 24, and the preset number of LED side light groups 24 are arranged on one side or multiple sides of a preset number of non-contact function buttons 21; the LED side light groups 24 are electrically connected to the main control chip 23 and the non-contact function buttons 21 respectively.

[0061] LED side-light lamp is a lighting device that uses light-emitting diode (LED) as a light source. Its characteristic is that the light emitter is located on the side of the lamp, rather than the traditional top or bottom light emission. This light emission method is selected to make the color film switch control panel have the characteristics of uniform lighting, space saving, heat dissipation performance, etc.

[0062] The reason why the LED side-lighting lamp group 24 is used to improve the heat dissipation performance of the color film switch panel is as follows: first, the LED side-lighting lamp group 24 is located on the side of the non-contact function button 21, which prevents the lamp from directly shining on the non-contact function button 21. This layout helps to distribute heat more evenly and reduce the formation of local hot spots; second, the light source distribution of the side-lighting LED lamp group 24 is relatively uniform, which reduces the problem of local overheating caused by concentrated light sources; finally, the density of the LED lamp beads of the side-lighting LED lamp group 24 is low, which can reduce the heat generated per unit area, thereby reducing the heat density and making it easier to dissipate the heat. This helps to avoid local overheating and improve the overall heat dissipation performance.

[0063] For example, the present application adopts LED side light groups to replace conventional positive light LEDs to solve the problem that LEDs cannot be placed around non-contact function buttons, and realize the display function of icons corresponding to non-contact function buttons. Therefore, a preset number of LED side light groups 24 are arranged on one or more sides of a preset number of non-contact function buttons 21 on the printed circuit board 2, which means that an LED side light group is arranged on any one or more sides around each non-contact function button 21.

[0064] For example, Figure 2 As shown, the LED side light group 24 is electrically connected to the main control chip 23 and the contactless function button 21. When the LED side light group 24 receives a signal from the main control chip 23, the side light group 24 emits light, and the light emitted is transmitted to illuminate the icon 111 of the color film layer.

[0065] like Figure 7 As shown, the LED side light group 24 is mainly composed of a transistor and a second preset number of LED lamps, the second preset number of LED lamps are arranged in parallel, and the second preset number of LED lamps and the transistors are arranged in series. The LED side light group 24 also includes multiple resistors for voltage limiting and current shunting.

[0066] Taking the LED side light group 24 corresponding to the disassembly and cleaning key as an example, the LED side light group 24 is described. P51 represents the component installation position, that is, the signal input end. After receiving the signal from the main control chip, the current signal enters from the resistor R702, a part of the current passes through the resistor R708 and is grounded, and a part of the current controls the transistor Q702 to turn on, and then controls the four parallel light-emitting diodes L5, L6, L7 and L8 to be lit, and the current then passes through the resistor R71, and the voltage on the other side of the resistor R704 is 5V. The other side light groups 24 are similar to this and will not be described here.

[0067] It should be noted that the present application does not limit the connection method between multiple LED side-light groups, which can be connected in series or in parallel, that is, the icon corresponding to a single non-contact function button can light up, or the icons corresponding to all non-contact function buttons can light up at the same time.

[0068] The embodiment of the present application arranges icons matching the contactless function buttons on the color film layer to display the functions of the electrical appliance, and arranges a side light group to light up the contactless function buttons to realize the human-computer interaction function. This solves the problem that components cannot be arranged around the color film switch panel after the touch medium is eliminated, reduces the front height of the printed circuit board, and improves the heat dissipation performance of the color film switch panel.

[0069] As an optional embodiment, the color film switch panel also includes a reflective cavity plastic shell 3, which is arranged between the color film layer 1 and the printed circuit board 2; the height of the reflective cavity plastic shell 3 is less than or equal to the sensing distance of a preset number of non-contact function buttons 21.

[0070] As an optional embodiment, Figure 1 As shown, the color film switch panel further includes a light guide sheet 31 , on which a light guide channel 311 is arranged. The light guide sheet 31 is arranged on the surface of the reflective cavity plastic shell 3 close to the printed circuit board 2 .

[0071] As an optional embodiment, a reflective film 25 is provided on the surface of the printed circuit board 2 .

[0072] For example, Figure 1As shown, the color film switch panel further includes a reflective cavity plastic shell 3, which is disposed between the color film layer 1 and the printed circuit board 2; the height of the reflective cavity plastic shell 3 is less than or equal to the sensing distance of a preset number of non-contact function buttons 21. The reflective cavity plastic shell 3 is used to wrap the color film layer 1 and the printed circuit board 2 together.

[0073] Optionally, the height of the reflective cavity plastic shell 3 is less than 3 mm, and the height of the reflective cavity plastic shell 3 is designed according to the sensing distance of the non-contact function button 21 .

[0074] Optionally, the reflective cavity plastic shell 3 includes a plurality of accommodating cavities for accommodating components on the printed circuit board, such as an accommodating cavity for accommodating a non-contact function button 21, an accommodating cavity for accommodating an LED side light group 24, and the like.

[0075] For example, Figure 3 As shown, the surface of the reflective cavity plastic shell 3 close to the printed circuit board 2 is the light guide 31, that is, the lower surface of the reflective cavity plastic shell 3 is the light guide; the function of the light guide 31 is to realize light emission in a 90° direction perpendicular to the light source (that is, directly above the PCB), and the light source emitted by the side light group 24 will enter the light guide 31 from the side, that is, parallel or nearly parallel to the color film layer 1 and the printed circuit board 2. After the light guide 31 guides the light source, the light source is injected into the color film layer 1 from the front.

[0076] It should be noted that the present application does not limit the above-mentioned specific angles that are close to parallel. In the present application, as long as the light source emitted by the LED side-lighting lamp group enters from the side between the color film layer and the printed circuit board, the light guide can be used to guide the light source to emit light from the front.

[0077] like Figure 4 As shown, a light guide channel 311 is also provided on the light guide plate, and the light guide channel 311 can make the front surface of the light guide plate 31 emit sufficient and uniform brightness.

[0078] Alternatively, if Figure 4 As shown, the light guide channel 311 can be designed as a grid point to enhance the light source reflected from the bottom surface to the color filter layer, so that the color filter layer 1 emits uniform light.

[0079] Optionally, the size of the color film layer 2 and the reflective cavity plastic shell 3 can be as follows: Figure 4 The dimensions shown can also be designed according to specific product dimensions.

[0080] Optionally, the material of the light guide plate 31 includes but is not limited to optical grade acrylic (PMMA) and polycarbonate (PC).

[0081] Exemplarily, a reflective film 25 is provided on the surface of the printed circuit board 2. The reflective film is used to further enhance the refraction of the light source, thereby enhancing the brightness of the light.

[0082] The embodiment of the present application sets a reflective cavity plastic shell and a light guide plate at the bottom of the reflective cavity plastic shell, thereby reflecting the light emitted by the side-emitting lamp group that is parallel or nearly parallel to the color film layer into light that is perpendicular to the color film layer, so that the icon corresponding to the color film layer is illuminated, and by setting a light guide channel on the light guide plate and a reflective film on the surface of the printed circuit board, the brightness of the emitted light source is uniform and the luminous brightness is enhanced, which solves the problem that components cannot be set around the color film switch panel after the touch medium is eliminated, and reduces the front height of the printed circuit board circuit.

[0083] The overall structure of the color film switch control panel is described below:

[0084] The color film control panel includes a color film layer, a reflective cavity plastic shell and a printed circuit board from top to bottom; at the bottom of the reflective cavity plastic shell, that is, the side close to the printed circuit board is a light guide, and the light guide is provided with a light guide channel, and the light guide channel is preferably in a dot shape; a reflective film is affixed to the surface of the printed circuit board; the components arranged on the printed circuit board include a contactless function button, a touch chip, a main control chip and an LED side light group, among which the contactless function button is preferably copper foil, and there should be no components (LED) and other wiring within 1mm of the contactless function button itself and its surroundings.

[0085] On the other hand, the embodiment of the present application also provides a control method of the above-mentioned color film switch panel, such as Figure 5 As shown, the method includes:

[0086] S10: When the distance between the touch object and the non-contact function button of the color film switch panel reaches a preset distance, a coupling capacitor is formed between the non-contact function button and the touch object.

[0087] Exemplarily, when the distance between the touch object and the non-contact function button of the color film switch panel reaches a preset distance, the touch object participates in the capacitive sensing system in the non-contact function button as a conductor, and a coupling capacitor is formed between the non-contact function button and the touch object, and the value of this coupling capacitor is very small.

[0088] Optionally, the preset distance is a sensing distance of a contactless function button.

[0089] Optionally, the touch object may be a finger.

[0090] Optionally, the non-contact function button may be a copper foil (PAD).

[0091] S20: Collect coupling capacitance based on touch chip.

[0092] Exemplarily, the coupling capacitor may change the original fixed capacitance value of the touch chip. After the touch chip detects the capacitance change, it transmits it to the main control chip.

[0093] S30: When it is determined based on the main control chip that the coupling capacitor meets the non-contact function button response condition, control the non-contact function button to respond.

[0094] Exemplarily, the coupling capacitor is judged based on the main control chip. When it is determined that the coupling capacitor meets the response conditions of the non-contact function button, it is a valid touch and the non-contact function button is controlled to respond; when it is determined that the coupling capacitor does not meet the response conditions of the non-contact function button, the switch control panel does not respond.

[0095] Controlling the non-contact function button to respond includes controlling the side light group to light up, and then the icon of the color film layer lights up.

[0096] In an embodiment of the present application, when the coupling capacitance between the touch object and the non-contact function button meets the non-contact function button response condition, the non-contact function button is controlled to respond, and the method is used to control the color film switch panel to realize the human-computer interaction function, so that the color film switch panel eliminates the touch medium, reduces the cost of the color film switch panel, and at the same time reduces the front height of the printed circuit board circuit.

[0097] As an optional embodiment, Figure 6 As shown, in the above step S30, when it is determined based on the main control chip that the coupling capacitor meets the non-contact function button response condition, the non-contact function button is controlled to respond, including:

[0098] S31: Obtain a target coupling capacitance, where the target coupling capacitance represents a response condition of the contactless function button.

[0099] Exemplarily, before determining the coupling capacitance, it is necessary to first obtain a target coupling capacitance, where the target coupling capacitance represents a response condition of the contactless function button.

[0100] S32: When it is determined based on the main control chip that the coupling capacitance is greater than or equal to the target coupling capacitance, the non-contact function button is controlled to respond.

[0101] Exemplarily, the main control chip compares the acquired target coupling capacitance with the coupling capacitance generated in real time, and when the main control chip determines that the coupling capacitance is greater than or equal to the target coupling capacitance, the non-contact function button is controlled to respond.

[0102] In the embodiment of the present application, the target coupling capacitor and the coupling capacitor are compared through the main control chip, so as to realize non-contact opening of the color film switch panel, eliminate the touch medium of the color film switch panel, reduce the cost of the color film switch panel, and at the same time realize the reduction of the front height of the printed circuit board.

[0103] As an optional embodiment, the method further includes:

[0104] Based on the main control chip, the transistors in the LED side light group corresponding to the contactless function button are driven to conduct, and the LED light group in the LED side light group is controlled to emit light, so that the light source emitted by the LED light group is processed by the light guide plate and the reflective film and then transmitted to the color film layer, so that the icon corresponding to the contactless function button is illuminated.

[0105] For example, Figure 7 As shown, a preset number of LED side-light groups are equivalent to a preset number of side-light circuits, and the preset number of side-light circuits include multiple LED lamps, transistors and multiple resistors.

[0106] When the main control chip determines that the coupling capacitance is greater than or equal to the target coupling capacitance, while controlling the non-contact function button to respond, the main control chip will drive the transistor in the side light group corresponding to the non-contact function button to turn on. After the transistor is turned on, the LED light group composed of multiple LED lights will emit light, and the light source will be emitted from the side of the LED parallel or nearly parallel to the PCB surface.

[0107] In order to achieve light emission at a 90° direction perpendicular to the light source (i.e. the color film layer directly above the PCB), a light guide is required. The LED light source enters the light guide from the side, and after reflection, the light emits from the front surface of the light guide.

[0108] In order to ensure sufficient and uniform brightness on the front surface of the light guide, a light guide channel is designed on the bottom of the light guide to enhance the reflection of light from the bottom to the front surface, so that the front side (color film layer) can emit uniform light. At the same time, the PCB surface is affixed with reflective film and is surrounded by a reflective cavity plastic shell to enhance the brightness of the light.

[0109] The embodiment of the present application realizes reflection of the light emitted by the side-emitting lamp group that is parallel or nearly parallel to the color film layer into light perpendicular to the color film layer through the light guide plate at the bottom of the reflective cavity plastic shell, so that the icon corresponding to the color film layer is illuminated, and the brightness of the light source emitted is uniform and the brightness of the light is enhanced through the light guide channel on the light guide plate and the reflective film on the surface of the printed circuit board, which solves the problem that components cannot be set around the color film switch panel after the touch medium is eliminated, and reduces the front height of the printed circuit board circuit.

[0110] On the other hand, an embodiment of the present application further provides an electrical appliance, comprising the color film switch panel as described above.

[0111] In the embodiments of the present application, the electrical appliances include but are not limited to range hoods, steam ovens, refrigerators, dishwashers, etc.

[0112] The embodiment of the present application adopts the above-mentioned color film switch panel without the touch medium, thereby reducing the cost of the electrical appliance, and at the same time reducing the installation height of the switch panel of the electrical appliance, saving the installation space of the whole machine, and improving the user experience.

[0113] On the other hand, the embodiment of the present application further provides a control device for a color film switch panel, the device comprising:

[0114] A sensing module, configured to form a coupling capacitor between the non-contact function button and the touch object when the distance between the touch object and the non-contact function button of the color film switch panel reaches a preset distance;

[0115] An acquisition module, used for acquiring the coupling capacitance based on a touch chip;

[0116] The response module is used to control the non-contact function button to respond when it is determined based on the main control chip that the coupling capacitor meets the non-contact function button response condition.

[0117] As an optional embodiment, the response module further includes:

[0118] A target coupling capacitance acquisition unit, used to acquire a target coupling capacitance, wherein the target coupling capacitance represents a response condition of the contactless function button;

[0119] The response unit is used to control the non-contact function button to respond when it is determined based on the main control chip that the coupling capacitance is greater than or equal to the target coupling capacitance.

[0120] As an optional embodiment, the above device also includes:

[0121] The side-light group control module is used to drive the transistors in the LED side-light group corresponding to the contactless function button to conduct based on the main control chip, and control the LED light group in the LED side-light group to emit light, so that the light source emitted by the LED light group is transmitted to the color film layer after being processed by the light guide plate and the reflective film, and so that the icon corresponding to the contactless function button is illuminated.

[0122] It should be noted that the control device embodiment of the color film switch panel provided in the embodiment of the present application and the control method embodiment of the color film switch panel provided in the embodiment of the present application are based on the same inventive concept.

[0123] An embodiment of the present application also provides an electronic device for controlling a color film switch panel, the electronic device comprising a processor and a memory, wherein the memory stores at least one instruction or at least one program, and the at least one instruction or at least one program is loaded and executed by the processor to implement a method for controlling a color film switch panel as provided in any of the above embodiments.

[0124] An embodiment of the present application also provides a computer-readable storage medium, which can be set in a terminal to store at least one instruction or at least one program for implementing a control method for a color film switch panel in a method embodiment, and the at least one instruction or at least one program is loaded and executed by a processor to implement the control method for a color film switch panel provided in the above method embodiment.

[0125] Optionally, in the embodiment of this specification, the storage medium may be located in at least one of the multiple network servers of the computer network. Optionally, in this embodiment, the above storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store program codes.

[0126] The memory of the embodiment of this specification can be used to store software programs and modules, and the processor executes various functional applications and data processing by running the software programs and modules stored in the memory. The memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, applications required for functions, etc.; the data storage area may store data created according to the use of the device, etc. In addition, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage device. Accordingly, the memory may also include a memory controller to provide the processor with access to the memory.

[0127] The embodiment of the present application also provides a computer program product or a computer program, which includes a computer instruction stored in a computer-readable storage medium. The processor of the computer device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computer device executes the control method of the color film switch panel provided by the above method embodiment.

[0128] The method embodiments provided in the embodiments of the present application can be executed in a terminal, a computer terminal, a server or a similar computing device. Taking running on a server as an example, Figure 8FIG. 1 is a hardware structure block diagram of a server of a method for controlling a color film switch panel according to an exemplary embodiment. Figure 8 As shown, the server 400 may have relatively large differences due to different configurations or performances, and may include one or more central processing units (CPU) 410 (the central processing unit 410 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 430 for storing data, and one or more storage media 420 (such as one or more mass storage devices) for storing application programs 423 or data 422. Among them, the memory 430 and the storage medium 420 can be short-term storage or permanent storage. The program stored in the storage medium 420 may include one or more modules, each of which may include a series of instruction operations on the server. Furthermore, the central processing unit 410 can be configured to communicate with the storage medium 420 and execute a series of instruction operations in the storage medium 420 on the server 400. The server 400 may also include one or more power supplies 460, one or more wired or wireless network interfaces 450, one or more input and output interfaces 440, and / or one or more operating systems 421, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.

[0129] The input / output interface 440 may be used to receive or send data via a network. The specific example of the network may include a wireless network provided by a communication provider of the server 400. In one example, the input / output interface 440 includes a network adapter (Network Interface Controller, NIC), which may be connected to other network devices via a base station so as to communicate with the Internet. In one example, the input / output interface 440 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0130] It can be understood by those skilled in the art that Figure 8 The structure shown is only for illustration and does not limit the structure of the above electronic device. Figure 8 More or fewer components as shown, or with Figure 8 Different configurations are shown.

[0131] It should be noted that the above-mentioned sequence of the embodiments of the present application is for description only and does not represent the advantages and disadvantages of the embodiments. The above-mentioned specific embodiments of this specification are described. Other embodiments are within the scope of the attached claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0132] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device and server embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0133] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware, or by a program to instruct the relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0134] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A color film switch panel, characterized in that: The color film switch panel includes a color film layer and a printed circuit board; the color film layer is arranged on the surface of the printed circuit board; the printed circuit board includes a preset number of non-contact function buttons, a touch chip and a main control chip; The touch chip is electrically connected to the contactless function button and the main control chip respectively.

2. The color film switch panel according to claim 1, characterized in that: The printed circuit board also includes a preset number of LED side light groups, and the preset number of LED side light groups are arranged on one side or multiple sides of the preset number of non-contact function buttons; The LED side-lighting lamp group is electrically connected to the main control chip.

3. The color film switch panel according to claim 1, characterized in that: The color film switch panel also includes a reflective cavity plastic shell, which is arranged between the color film layer and the printed circuit board; the height of the reflective cavity plastic shell is less than or equal to the sensing distance of the preset number of non-contact function buttons.

4. The color film switch panel according to claim 3, characterized in that: The color film switch panel further comprises a light guide plate, on which a light guide channel is arranged, and the light guide plate is arranged on a surface of the reflective cavity plastic shell close to the printed circuit board.

5. The color film switch panel according to claim 1, characterized in that: A reflective film is arranged on the surface of the printed circuit board.

6. The color film switch panel according to claim 1, characterized in that: The color film layer further includes a non-contact function button area, and the non-contact function button area includes a preset number of icons, and positions of the preset number of icons match positions of the preset number of non-contact function buttons.

7. A control method for a color film switch panel according to any one of claims 1 to 6, characterized in that: The method comprises: When the distance between the touch object and the non-contact function button of the color film switch panel reaches a preset distance, a coupling capacitor is formed between the non-contact function button and the touch object; Collecting the coupling capacitance based on the touch chip; When it is determined based on the main control chip that the coupling capacitor meets the non-contact function button response condition, the non-contact function button is controlled to respond.

8. The method according to claim 7, characterized in that When it is determined based on the main control chip that the coupling capacitor meets the non-contact function button response condition, controlling the non-contact function button to respond includes: Acquire a target coupling capacitance, where the target coupling capacitance represents a response condition of the contactless function button; When it is determined based on the main control chip that the coupling capacitance is greater than or equal to the target coupling capacitance, the non-contact function button is controlled to respond.

9. The method according to claim 7, characterized in that: The method further comprises: Based on the main control chip, the transistors in the LED side light group corresponding to the contactless function button are driven to be turned on, and the LED light group in the LED side light group is controlled to emit light, so that the light source emitted by the LED light group is transmitted to the color film layer after being processed by the light guide plate and the reflective film, and the icon corresponding to the contactless function button is illuminated.

10. An electrical appliance, characterized in that: A color film switch panel as described in any one of claims 1 to 6 is used.

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