LED digital display module

Abstract

The utility model discloses a light-emitting diode (LED) digital display module which comprises a printed circuit board (PCB), and an LED display light source, a switch button and a spring are arranged on one face of the PCB. An IC driving unit and a resistance-capacitance unit are arranged on the other side of the PCB, the resistance-capacitance unit is connected with the IC driving unit, the IC driving unit is connected with an LED display light source, and the IC driving unit drives the LED display light source to carry out light display; the PCB is arranged in the reflecting cover, an LED display area and a switch key operation area are arranged on the reflecting cover, the switch key and the spring are arranged in the switch key operation area, and the switch key operation area is provided with an elastic pressing module used for pressing the switch key; a layer of pattern panel is further arranged on the surface of the reflecting cover and used for displaying pattern information.

Description

Technical Field

[0001] This application belongs to the field of digital display technology, specifically referring to an LED digital display module. Background Technology

[0002] In the field of digital display technology, LED digital display modules are devices that display both digital and functional information. They are widely used in household appliances and instruments such as air conditioners, washing machines, refrigerators, and induction cookers to display their operating status.

[0003] In existing LED digital display module designs, the display module and mechanical buttons are mostly separate, each performing its own functions. Mechanical buttons typically provide press-based interaction but do not support touch-based feedback. Furthermore, they often lack icon display at the button press locations, meaning there is no LED light source. Additionally, the overall design of LED digital display modules is large, requiring significant area and resulting in a degree of cost waste.

[0004] Occasionally, mechanical buttons are placed on the back of the display module, which often requires an additional spring to achieve button rebound; and the interactive effect of the button switch requires pressing the entire display module to achieve interactive feedback, and does not support pressing a single icon. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this application provides an LED digital display module that can realize both mechanical pressing and touch feedback functions for button icons.

[0006] This utility model provides an LED digital display module, including a PCB printed circuit board. An LED display light source, a switch button, and a spring are arranged on one side of the PCB printed circuit board. An IC driving unit and a resistor-capacitor unit are arranged on the other side of the PCB printed circuit board. The resistor-capacitor unit and the IC driving unit are connected. The IC driving unit is connected to the LED display light source and drives the LED display light source to perform light display.

[0007] The PCB printed circuit board is set inside the reflector. The reflector is provided with an LED display area and a switch button operation area. The switch button and the spring are both set in the switch button operation area. The switch button operation area has an elastic pressing module for pressing the switch button.

[0008] A pattern panel is also provided on the surface of the reflector to display pattern information.

[0009] Furthermore, according to the LED digital display module provided in this application, the elastic pressing module includes a switch pressing button and a U-shaped elastic groove connecting rib. One end of the U-shaped elastic groove connecting rib is connected to the switch pressing button, and the other end is connected to the reflector. The switch button is located below the switch pressing button.

[0010] Furthermore, according to the LED digital display module provided in this application, the U-shaped elastic groove connecting rib and the reflector form a lever structure.

[0011] Furthermore, according to the LED digital display module provided in this application, the spring is disposed around the switch button, and the spring is also disposed above the U-shaped elastic groove connecting rib.

[0012] Furthermore, according to the LED digital display module provided in this application, one end of the spring is connected to the resistor-capacitor unit through the PCB printed circuit board. When the pattern panel is touched, the capacitance value between the finger and the spring changes, generating a touch signal.

[0013] Furthermore, according to the LED digital display module provided in this application, the LED display area includes a plurality of digital display recesses, and a first LED display light source is provided in each of the digital display recesses.

[0014] Furthermore, according to the LED digital display module provided in this application, a groove is provided around the switch button operation area, and a second LED display light source is provided below the groove.

[0015] Furthermore, according to the LED digital display module provided in this application, the first LED display light source has multiple sets of LED units, the multiple sets of LED units are independent of each other, and the different switching states of the multiple sets of LED units form different digital displays.

[0016] Furthermore, according to the LED digital display module provided in this application, the second LED display light source has multiple sets of LED units, and the multiple sets of LED units are independent of each other, and the second LED display light source is disposed inside the spring.

[0017] The beneficial effects of this utility model are as follows: This utility model provides an LED digital display module. By setting an LED display area and a switch button operation area on the reflector, the LED display area and the switch button are separated. Furthermore, an elastic pressing module is set in the switch button operation area for pressing the switch button, realizing mechanical button pressing and rebound, providing good mechanical feedback. Simultaneously, by using springs and other methods, the touch feedback function of the button icon is realized, effectively improving space utilization, saving development space for the digital display module, thereby reducing development costs and enabling small-volume product design. Attached Figure Description

[0018] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of the LED digital display module provided in this embodiment.

[0020] Figure 2 This is a schematic diagram of the reflector provided in this embodiment.

[0021] Figure 3 This is a cross-sectional view of the reflector provided in this embodiment.

[0022] Figure 4 This is a schematic diagram of the circuit structure of the LED digital display module provided in this embodiment.

[0023] The components in the diagram are labeled as follows: 1. Reflector, 2. Pattern panel, 3. Switch button, 4. Spring, 5. PCB printed circuit board, 6. LED display light source, 7. IC driver unit, 8. RC unit, 9. U-shaped elastic groove connecting rib, 10. Switch button, 21. Support point, 22. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. 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, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0027] The embodiments of this application will now be further described in conjunction with the accompanying drawings and specific implementation details.

[0028] Figure 1 This is a schematic diagram of the structure of the LED digital display module provided in this embodiment.

[0029] like Figure 1As shown, the LED digital display module provided in this embodiment includes a PCB printed circuit board 5. An LED display light source 6, a switch button 3, and a spring 4 are disposed on one side of the PCB printed circuit board 5. An IC driving unit 7 and a resistor-capacitor unit 8 are disposed on the other side of the PCB printed circuit board 5. The resistor-capacitor unit 8 is connected to the IC driving unit 7, and the IC driving unit 7 is connected to the LED display light source 6. The IC driving unit 7 drives the LED display light source 6 to perform light display. The PCB printed circuit board 5 is disposed inside a reflector 1. The reflector 1 has an LED display area and a switch button 3 operation area. The switch button 3 and the spring 4 are both disposed within the switch button 3 operation area. The switch button 3 operation area has an elastic pressing module for pressing the switch button 3. A pattern panel 2 is also disposed on the surface of the reflector 1 for displaying pattern information. The PCB printed circuit board 5 is disposed inside the reflector 1, and the LED display light source 6 located on the PCB printed circuit board 5 emits light and displays patterns through the pattern panel 2.

[0030] Figure 2 This is a schematic diagram of the structure of the reflector 1 provided in this embodiment.

[0031] like Figure 2 As shown, the elastic pressing module includes a switch pressing button 22 and a U-shaped elastic groove connecting rib 21. One end of the U-shaped elastic groove connecting rib 21 is connected to the switch pressing button 22, and the other end is connected to the reflector 1. The switch button 3 is located below the switch pressing button 22. The U-shaped elastic groove connecting rib 21 and the reflector 1 form a lever structure.

[0032] Specifically, a U-shaped elastic groove connecting rib 21 is provided in the reflector 1. In this structure, only one side of the U-shaped elastic groove connecting rib 21 is connected to the main body of the reflector 1, thus forming a lever structure. This lever structure serves as the force transmission structure for the switch button 22. When the switch button 22 is pressed by a finger or other object, this structure acts as a lever with the connection point 23 between the U-shaped elastic groove connecting rib 21 and the main body of the reflector 1 as the fulcrum, undergoing elastic deformation and thus compressing the switch button 3. After being compressed, the switch button 3 generates a switch signal and feeds it back to the IC driving unit 7 for signal processing. The IC driving unit 7 drives the LED display light source 6 to perform lighting display, etc. After the press is completed, due to the elastic rebound of the U-shaped elastic groove connecting rib 21 and the switch button 3 itself, the entire structure rebounds, completing one elastic press.

[0033] Figure 3This is a cross-sectional view of the reflector 1 provided in this embodiment.

[0034] like Figure 3 As shown, the spring 4 is disposed around the switch button 22, and also above the U-shaped elastic groove connecting rib 21. One end of the spring 4 is connected to the resistor-capacitor unit 8 through the PCB printed circuit board 5. When the pattern panel 2 is touched, the capacitance value between the finger and the spring 4 changes, generating a touch signal. In this embodiment, the spring 4 can also be replaced by a surface film or a conductive film to achieve the capacitance change.

[0035] Specifically, one end of the spring 4 passes through the PCB printed circuit board 5 and is connected to the resistor-capacitor unit 8. Touching the spring 4 with a finger will change its resistance and capacitance value. Therefore, when a finger is around the elastic pressing module, if no pressing action is performed, an equivalent capacitance is formed between the finger and the spring 4. The change in capacitance value is transmitted to the IC driving unit 7 through the resistor-capacitor unit 8. The IC driving unit 7 determines whether a touch has occurred by detecting the change in capacitance value of the spring 4, thereby driving the LED display light source 6 to perform lighting displays, etc. The connection between the spring 4 and the resistor-capacitor unit 8 enables touch functionality at the same location as the mechanical switch press, greatly saving space in the module.

[0036] Figure 4 This is a schematic diagram of the circuit structure of the LED digital display module provided in this embodiment.

[0037] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the LED display area includes several digital display recesses, each of which is provided with a first LED display light source 6. A recess is formed around the operating area of ​​the switch button 3, and a second LED display light source 6 is disposed below the recess. The first LED display light source 6 has at least 7 groups of LED units, each group of LED units is independent, and different switching states of the 7 groups of LED units form different digital displays. The second LED display light source 6 has at least 8 groups of LED units, each group of LED units is independent, and all 8 groups of LED units of the second LED display light source are disposed inside the spring.

[0038] Specifically, the IC driving unit 7 includes at least one driving chip. The first LED display light source 6 includes a first digital display unit DIG1, ​​a second digital display unit DIG2, and a third digital display unit DIG3. Each of the first, second, and third digital display units DIG1 and DIG2 includes seven groups of LED units. The first digital display unit DIG1 includes LEDs 1A, 1B, 1C, 1D, 1E, 1F, and 1G. These LEDs are independent of each other and are all controlled by the driving chip. The driving chip forms different digital displays by controlling the switching of different LEDs. The structures of the second and third digital display units DIG2 and DIG3 are the same as those of the first digital display unit DIG1, ​​and will not be described in detail here.

[0039] The second LED display light source 6 includes 8 groups of LED units, and the 8 groups of LED units form a circular light ring. The second LED display light source 6 includes LED lights H1, H2, H3, H4, H5, H6, H7 and H8. Moreover, the 8 groups of LED units are independent of each other and are all controlled by the driving chip.

[0040] The contact point K1 of the switch button 3 is connected to the driver chip, and the contact point K2 of the spring 4 is also connected to the driver chip.

[0041] In summary, the working principle of the LED digital display module provided in this embodiment is as follows: After receiving the signal from the host, the IC driving unit 7 drives the LED display light source 6 to emit or extinguish light, or adjust the brightness of the light, to realize the display's working status. By pressing the switch button 22 on the reflector 1, the U-shaped elastic groove connecting rib 21 undergoes slight deformation, which is transmitted to the switch button 3 to obtain the pressing effect and realize the function of the mechanical switch button 3; when the user touches the switch icon with only his finger, according to the capacitive touch principle, the capacitance value between the finger and the internal spring 4 (or the conductive film of the surface diaphragm) changes, thereby transmitting the touch signal to the IC driving unit 7 to realize the touch function; and the touch signal and the button signal are logically filtered, judged and processed by the IC driving unit 7 to realize the corresponding feedback under different pressing and touch modes.

[0042] Most existing digital display structures do not support mechanical tactile feedback. The implementation mechanism is similar to a keycap-type remote control button, which typically cannot achieve a lit icon effect through graphic representation. Alternatively, some display modules that support touch feedback are incompatible with mechanical tactile feedback. Therefore, this embodiment provides an LED digital display module that separates the LED display area and the switch button 3 operation area on the reflector 1. An elastic pressing module is provided in the switch button 3 operation area for pressing, achieving mechanical button pressing and rebound with good mechanical feedback. Simultaneously, the touch feedback function of the button icon is achieved through the use of springs 4, effectively improving space utilization, saving development space for the digital display module, thereby reducing development costs and enabling small-volume product design. Furthermore, the U-shaped groove structure allows the display icon, mechanical pressing, and touch feedback functions to be compatible in the same location. Increasing the types of user interaction feedback and implementing multiple logical feedback mechanisms reduces UI icon design, enabling a small-space, multi-interaction structural design.

[0043] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the present invention. Finally, it should be noted that in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0044] The above provides a detailed description of an LED digital display module provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An LED digital display module, characterized in that, The device includes a PCB printed circuit board, on one side of which is provided an LED display light source, a switch button, and a spring; on the other side of the PCB printed circuit board are provided an IC driving unit and a resistor-capacitor unit, the resistor-capacitor unit and the IC driving unit are connected, the IC driving unit is connected to the LED display light source, and the IC driving unit drives the LED display light source to perform light display. The PCB printed circuit board is disposed inside the reflector. The reflector is provided with an LED display area and a switch button operation area. The switch button and the spring are both disposed in the switch button operation area. The switch button operation area has an elastic pressing module for pressing the switch button. A pattern panel is also provided on the surface of the reflector to display pattern information.

2. The LED number display module according to claim 1, characterized in that, The elastic pressing module includes a switch pressing button and a U-shaped elastic groove connecting rib. One end of the U-shaped elastic groove connecting rib is connected to the switch pressing button, and the other end is connected to the reflector. The switch pressing button is located below the switch pressing button. 3.The LED digital display module of claim 2, wherein, The U-shaped elastic groove connecting rib and the reflector form a lever structure.

4. The LED number display module according to claim 2, characterized in that, The spring is disposed around the switch button, and the spring is also disposed above the U-shaped elastic groove connecting rib.

5. The LED number display module according to claim 4, characterized in that, One end of the spring is connected to the resistor-capacitor unit via the PCB printed circuit board. When the pattern panel is touched, the capacitance between the finger and the spring changes, generating a touch signal.

6. The LED number display module of claim 1, wherein, The LED display area includes several digital display recesses, each of which is provided with a first LED display light source.

7. The LED number display module according to claim 6, characterized in that, The switch button operation area is surrounded by grooves, and a second LED display light source is provided below the grooves.

8. The LED digital display module according to claim 6, characterized in that, The first LED display light source has multiple sets of LED units, which are independent of each other. Different switching states of the multiple sets of LED units form different digital displays.

9. The LED number display module of claim 7, wherein, The second LED display light source has multiple sets of LED units, which are independent of each other, and the second LED display light source is disposed inside the spring.

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