Intuitive vibration feedback light-emitting touchpad, production method and control method

Abstract

The application discloses an intuitive vibration feedback light-emitting touch panel, and belongs to the technical field of electronic touch panels. The vibration feedback light-emitting touch panel comprises a touch panel and an electronic control mainboard arranged below the touch panel. The touch panel comprises, from bottom to top, a vibration sheet, a conductive film, a light-emitting diode and an injection layer arranged in sequence and integrated by injection molding. The conductive film is used for sensing a touch signal on the touch panel. The bottom of the conductive film is provided with a plurality of vibration sheets. The light-emitting diode and the vibration sheets are electrically connected with the electronic control mainboard through the conductive film. When the touch panel is touched, the electronic control mainboard lights up the light-emitting diode, and simultaneously makes the vibration sheets vibrate, so that different touch points output the same vibration feedback. The vibration feedback light-emitting touch panel disclosed by the application is simple in processing mode and time-saving. When fingers touch different positions of the touch panel, the same vibration feedback touch feeling can be obtained, and user experience is improved.

Description

Technical Field

[0001] This invention relates to an intuitive vibration feedback luminous touchpad, its manufacturing method, and its control method, belonging to the field of electronic touchpad technology. Background Technology

[0002] Currently, most touchpad products on the market that provide haptic feedback use vibration motors or vibrating pads to drive vibrations in a localized area, limiting the product's height and the size of the feedback area. Because the position of the vibrating pad or motor is fixed, but the vibration intensity doesn't change with the touch location, the intensity of the vibration varies depending on where the finger touches the panel. If the feedback is too light, it's imperceptible, resulting in a poor user experience. Furthermore, for touchpad products, the existing technology for assembling related components involves stacking and combining components, which is time-consuming and cumbersome. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an intuitive haptic feedback luminous touchpad, manufacturing method and control method that can provide the same vibration feedback at different touch positions, providing a good user experience.

[0004] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0005] In a first aspect, the present invention provides an intuitive vibration feedback light-emitting touch panel, including a touch panel and an electronic control motherboard disposed below the touch panel. The touch panel includes a conductive film, a light-emitting diode and an injection molding layer arranged sequentially from bottom to top and injection molded into an integral structure.

[0006] The conductive film is used to sense touch signals on the touch panel; multiple vibrating pads are distributed at the bottom of the conductive film; the light-emitting diodes and each vibrating pad are electrically connected to the electronic control motherboard through the conductive film.

[0007] In response to a touch on the touch panel, the electronic control motherboard illuminates the light-emitting diodes and simultaneously vibrates each vibrating pad so that different touch points output the same vibration feedback.

[0008] Furthermore, the electronic control motherboard includes a PCBA board and a flip-type connector, wherein the flip-type connector connects the conductive film and the PCBA board.

[0009] Furthermore, the conductive film is a transparent conductive film.

[0010] Furthermore, the surface of the injection-molded layer is covered with a decorative film.

[0011] Furthermore, the distance between two adjacent vibrating plates on the conductive film is the same.

[0012] Secondly, the present invention provides a method for producing an intuitive vibration feedback luminous touchpad, characterized by comprising the following steps:

[0013] The conductive film and light-emitting diode are placed together into the injection mold cavity using embedded injection technology.

[0014] After the mold is closed, injection molding is performed into the injection mold cavity to form an injection molding layer on the light-emitting diode, and a light-emitting touch panel with conductive film and light-emitting diode is formed in an integrated structure.

[0015] The light-emitting touch panel is electrically connected to the PCBA, and a vibrating pad is attached between the two panels.

[0016] Furthermore, it also includes covering the surface of the injection-molded layer with a decorative film.

[0017] Thirdly, the present invention provides a control method for an intuitive vibration feedback luminous touchpad, comprising the following steps:

[0018] In response to a touch on the touch panel, LEDs are illuminated, and the vibration of each vibrator is controlled to ensure that different touch points output the same vibration feedback.

[0019] Furthermore, methods for controlling the vibration of each vibrating pad to ensure that different touch points output the same vibration feedback include:

[0020] Collect the distance between the touch point and each vibrating pad;

[0021] Based on the principle that the vibration feedback at the touch point is directly proportional to the initial amplitude of the vibrating pad and inversely proportional to the distance from each vibrating pad, the initial amplitude of each vibrating pad is calculated using the following formula:

[0022] H i0 =Hd i

[0023] In the formula, H i0 The initial amplitude of vibrating element i is represented; i = 1, 2, ..., n, where n is the total number of vibrating elements; H represents the amplitude that the touch point can sense when a single vibrating element vibrates; d i This indicates the distance between the touch point and the vibrating pad i.

[0024] Fourthly, the present invention provides an electronic product including an intuitive haptic feedback luminous touchpad as described in any of the first aspects.

[0025] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0026] The intuitive vibration feedback luminous touch panel provided by the present invention is equipped with multiple vibrating pads. When the touch panel senses a touch, each vibrating pad vibrates so that different touch points output the same vibration feedback, which helps to improve the user experience.

[0027] During production, the conductive film, light-emitting diodes, and injection molding layer are arranged sequentially from bottom to top and injection molded into a single touch panel structure. This process is time-saving and simple, which helps to improve production efficiency and reduce production costs.

[0028] This invention also provides an intuitive vibration feedback luminous touchpad control method. The electronic control motherboard calculates and outputs corresponding vibration command signals to each vibrating element based on the sensed touch signal using an IC algorithm, so that different touch points output the same vibration feedback, giving the panel an intuitive vibration feedback function and display luminous function. This allows the same intensity of vibration feedback to be obtained when a finger touches different positions on the panel, thereby improving the user experience. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall cross-sectional structure provided in an embodiment of the present invention;

[0030] Figure 2 This is a partial top view of the touch panel provided in an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the IC algorithm provided in an embodiment of the present invention;

[0032] In the diagram: 1. Conductive film; 2. Vibrating plate; 3. Light-emitting diode; 4. Injection molding layer; 5. Decorative film; 6. PCBA board; 7. Flip connector. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention 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 the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0035] Example 1:

[0036] like Figures 1-2 As shown, this invention provides an intuitive haptic feedback touchpad, comprising a touch panel and an electronic control board located below the touch panel. The touch panel includes a conductive film 1, light-emitting diodes 3, and an injection-molded integral structure arranged sequentially from bottom to top. The conductive film 1 is used to sense touch signals on the touch panel. Multiple vibrating pads 2 are distributed at the bottom of the conductive film 1. The light-emitting diodes 3 and each vibrating pad 2 are electrically connected to the electronic control board through the conductive film 1. In response to a touch on the touch panel, the electronic control board illuminates the light-emitting diodes 3 and simultaneously vibrates each vibrating pad 2, so that different touch points output the same haptic feedback. The electronic control board includes a PCBA board 6 and a flip-type connector 7, which connects the conductive film 1 and the PCBA board 6. For screen display convenience, the conductive film 1 can be a transparent conductive film, with the distance between adjacent vibrating pads 2 on the conductive film 1 being the same. The surface of the injection-molded layer 4 is also covered with a decorative film 5, which can protect the screen and provide decorative effects. The decorative film 5 can be printed with decorative patterns, functional symbols, etc., as needed.

[0037] The embodiments of the present invention can be applied to products and handwriting tablets with touch panels in various industries such as medical, home appliances, 3C, and automobiles. The panel can have different functional points.

[0038] Example 2:

[0039] This invention provides a method for producing an intuitive haptic feedback touchpad, which can be used to produce an intuitive haptic feedback touchpad as described in Embodiment 1, comprising the following steps:

[0040] Step 1: Using embedded injection molding technology, the conductive film 1, the vibrating plate 2, and the light-emitting diode 3 are sequentially placed into the injection mold cavity;

[0041] Step 2: After the injection mold cavity is closed, injection molding is performed into the injection mold cavity to form an injection layer 4 on the light-emitting diode 3, which together with the conductive film 1, the vibrating plate 2, and the light-emitting diode 3 forms a touch panel with an integrated structure.

[0042] Step 3: Electrically connect the touch panel to conductive film 1.

[0043] Step 4: Cover the surface of the injection-molded layer 4 with a decorative film 5.

[0044] This invention employs embedded injection molding technology instead of stacking technology, combining the conductive film 1, vibrating plate 2, and light-emitting diode 3 and directly injection molding them into an intuitive vibration feedback luminous touchpad assembly. This process is time-saving and simple. The embedded injection molding process involves placing the metal parts into the mold during injection molding, then closing the mold and injecting the metal parts, essentially coating them with a layer of plastic. The mold used is slightly more precise than a conventional injection molding mold, resulting in a tighter seal after the metal parts are installed. Currently, products commonly using embedded injection molding technology include plugs and terminals, such as power plugs, computer connectors, and gears.

[0045] Example 3:

[0046] like Figure 3 As shown, the present invention also provides a control method for an intuitive haptic feedback luminous touch panel, which can control an intuitive haptic feedback luminous touch panel as described in Embodiment 1, including illuminating the light-emitting diode 3 in response to a touch on the touch panel, and simultaneously controlling each vibrating plate 2 to vibrate so that different touch points output the same haptic feedback.

[0047] In this embodiment of the application, the method for controlling the vibration of each vibrating pad 2 to output the same vibration feedback at different touch points includes the following steps:

[0048] Step 1: Collect the distance between the touch point and each vibrating pad 2;

[0049] Step 2: Based on the principle that the vibration feedback of the touch point is directly proportional to the initial amplitude of the vibrating pad 2 and inversely proportional to the distance from each vibrating pad 2, calculate the initial amplitude of each vibrating pad 2 according to the following formula:

[0050] H i0 =Hd i

[0051] In the formula, H i0 The initial amplitude of vibrating element 2i is represented by ; i = 1, 2, ..., n, where n is the total number of vibrating elements 2; H represents the amplitude that the touch point can sense when a single vibrating element 2 vibrates; d i This indicates the distance between the touch point and the vibrating pad 2i.

[0052] When in use, when a finger touches any position on the screen of the touchpad in this embodiment, the touch panel responds to the touch and lights up the LED 3. At the same time, the conductive film 1 in the panel receives the micro-current from the human body and conducts it to the IC in the electronic control motherboard. The electronic control motherboard uses the IC algorithm to collect the distance between the touch point and each vibrating pad 2 based on the change in capacitance value at that point. According to the principle that the vibration feedback of the touch point is directly proportional to the initial amplitude of the vibrating pad 2 and inversely proportional to the distance from each vibrating pad 2, the initial amplitude of each vibrating pad 2 is calculated according to the corresponding formula and output to each vibrating pad 2 to control the vibration of each vibrating pad 2 so that different touch points output the same vibration feedback, thereby improving the user experience.

[0053] Example 4:

[0054] This invention provides an electronic product that uses an intuitive haptic feedback touchpad as described in Embodiment 1, which can provide the same haptic feedback when the user touches different positions on the touchpad, thereby improving the user experience.

[0055] The electronic product can be any electronic product that uses a touchpad, such as a mobile phone or tablet computer.

[0056] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An intuitive vibration feedback luminous touchpad, characterized in that, It includes a touch panel and an electronic control motherboard located below the touch panel. The touch panel includes a vibrating plate (2), a conductive film (1), a light-emitting diode (3), and an injection molding layer (4) arranged sequentially from bottom to top and injection molded into a single structure. The conductive film (1) is used to sense touch signals on the touch panel; multiple vibrating pads (2) are distributed at the bottom of the conductive film (1); the light-emitting diode (3) and each vibrating pad (2) are electrically connected to the electronic control motherboard through the conductive film (1); the distance between two adjacent vibrating pads (2) on the conductive film (1) is the same; In response to a touch on the touch panel, the electronic control motherboard illuminates the light-emitting diode (3) and simultaneously causes each vibrating pad (2) to vibrate so that different touch points output the same vibration feedback; Methods for making different touch points output the same vibration feedback include: The distance between the touch point and each vibrating pad (2) is collected; Based on the principle that the vibration feedback of the touch point is directly proportional to the initial amplitude of the vibrating pad (2) and inversely proportional to the distance from each vibrating pad (2), the initial amplitude of each vibrating pad (2) is calculated according to the following formula: H i0 ＝ Hd i In the formula, H i0 The initial amplitude of the vibrating plate (2)i is represented by i = 1, 2, ..., n, where n is the total number of vibrating plates (2); H represents the amplitude that the touch point can sense when a single vibrating plate (2) vibrates. d i Indicates the touch point and the vibrating pad (2) i The distance.

2. The intuitive vibration feedback luminous touchpad according to claim 1, characterized in that, The electronic control motherboard includes a PCBA board (6) and a flip-type connector (7), which connects the conductive film (1) and the PCBA board (6).

3. The intuitive vibration feedback luminous touchpad according to claim 1, characterized in that, The conductive film (1) is a transparent conductive film.

4. The intuitive vibration feedback luminous touchpad according to claim 1, characterized in that, The injection-molded layer (4) is covered with a decorative film (5).

5. A method for producing an intuitive vibration feedback luminous touchpad as described in any one of claims 1 to 4, characterized in that, Includes the following steps: The conductive film (1) and the light-emitting diode (3) are placed together into the injection mold cavity using the embedded injection technology; After the mold is closed, injection molding is performed into the injection mold cavity to form an injection molding layer (4) on the light-emitting diode (3), and a light-emitting touch panel with conductive film (1) and light-emitting diode (3) is formed in an integrated structure. The conductive film (1) on the light-emitting touch panel is electrically connected to the PCBA board (6), and the vibrating sheet (2) is attached and fixed between the light-emitting touch panel and the PCBA board (6).

6. The method for producing an intuitive vibration feedback luminous touchpad according to claim 5, characterized in that, It also includes covering the surface of the injection-molded layer (4) with a decorative film (5).

7. A control method for an intuitive vibration feedback luminous touchpad as described in any one of claims 1 to 4, characterized in that, Includes the following steps: In response to a touch on the touch panel, the light-emitting diode (3) is lit up, and the vibration of each vibrating pad (2) is controlled to make different touch points output the same vibration feedback; The methods for controlling the vibration of each vibrating pad (2) to output the same vibration feedback at different touch points include: The distance between the touch point and each vibrating pad (2) is collected; Based on the principle that the vibration feedback of the touch point is directly proportional to the initial amplitude of the vibrating pad (2) and inversely proportional to the distance from each vibrating pad (2), the initial amplitude of each vibrating pad (2) is calculated according to the following formula: H i0 ＝ Hd i In the formula, H i0 The initial amplitude of the vibrating plate (2)i is represented by i = 1, 2, ..., n, where n is the total number of vibrating plates (2); H represents the amplitude that the touch point can sense when a single vibrating plate (2) vibrates. d i Indicates the touch point and the vibrating pad (2) i The distance.

8. An electronic product, characterized in that, Including the intuitive haptic feedback luminous touchpad as described in any one of claims 1 to 4.

Images