Tactile touch panel

Abstract

The utility model provides a tactile touch panel which comprises a force sensing module, a vibration module and a touch module. The force sensing module comprises a substrate and at least one force sensor arranged on the substrate. The vibration module comprises a circuit board arranged above the force sensing module, a vibrator arranged on the circuit board and electrically connected with the at least one force sensor, and at least one damping piece arranged on the circuit board and adjacent to the vibrator. And the touch module is arranged above the circuit board. The rigidity of the corresponding position of the circuit board can be improved through the damping piece, vibration is weakened, and the overall vibration uniformity of the circuit board and the touch module is improved.

Description

Technical Field

[0001] This utility model relates to a tactile touch panel, and more particularly to a tactile touch panel with good tactile feedback uniformity. Background Technology

[0002] An existing haptic touchpad includes a substrate, a plurality of force sensors disposed on the substrate, a circuit board, a vibrator disposed on the circuit board and electrically connected to the force sensors, and a touch substrate. When the touch substrate is pressed, it actuates the force sensors, and the force sensors transmit signals to the vibrator, causing the vibrator to vibrate to provide haptic feedback.

[0003] However, because the vibration of the touch substrate is weaker when it is farther away from the vibrator, the tactile feedback is poor. But if the vibration of the vibrator is increased, the vibration of the touch substrate closer to the vibrator will be too strong, which can easily cause the user's fingers to feel numb and uncomfortable. In other words, the existing tactile touchpad has the problem of uneven vibration or tactile feedback. Utility Model Content

[0004] The purpose of this invention is to provide a tactile touchpad that can improve upon at least one of the aforementioned drawbacks.

[0005] The present invention relates to a tactile touch panel, comprising a force sensing module, a vibration module, and a touch module. The force sensing module includes a substrate and at least one force sensor disposed on the substrate. The vibration module includes a circuit board disposed above the force sensing module, a vibrator disposed on the circuit board and electrically connected to the at least one force sensor, and at least one damping component disposed on the circuit board and adjacent to the vibrator. The touch module is disposed above the circuit board.

[0006] The tactile touch panel of this utility model includes a vibration module comprising two shock absorbers. The vibrator and the shock absorbers are disposed on the bottom surface of the circuit board. The vibrator and the shock absorbers are located away from the center of the circuit board and adjacent to the edge of the circuit board. The shock absorbers are located on opposite sides of the vibrator along the edge of the circuit board.

[0007] The tactile touch panel of this utility model has at least one shock-absorbing component that is rectangular in shape.

[0008] The tactile touch panel of this utility model has at least one shock-absorbing component made of glass fiber material.

[0009] The tactile touch panel of this utility model, the force sensing module further includes a plurality of pads disposed on the substrate and supporting the circuit board.

[0010] The beneficial effects of this utility model are as follows: by setting the damping component near the vibrator on the circuit board, the rigidity of the corresponding position of the circuit board can be improved, the vibration can be reduced, and the vibration uniformity of the circuit board and the touch module as a whole can be improved. Attached Figure Description

[0011] Figure 1 This is a perspective view of an embodiment of the tactile touch panel of this utility model;

[0012] Figure 2 This is an exploded perspective view of the embodiment described above; and

[0013] Figure 3 This is a top view of the embodiment described. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] See Figure 1 and Figure 2 An embodiment of the tactile touch panel of this utility model includes a force sensing module 1, a ring frame 2 disposed above the force sensing module 1, a vibration module 3 disposed above the force sensing module 1, and a touch module 4 disposed above the vibration module 3.

[0016] The force sensing module 1 includes a substrate 11, a force sensor 12 disposed in the center of the substrate 11, and a plurality of pads 13 disposed on the substrate 11. It should be noted that in other variations of this embodiment, two or more force sensors 12 may also be disposed on the substrate 11.

[0017] The vibration module 3 includes a circuit board 31 disposed above the force sensing module 1, a vibrator 32 disposed on the bottom surface of the circuit board 31 and electrically connected to the force sensor 12, and two damping components 33 disposed on the bottom surface of the circuit board 31 and adjacent to the vibrator 32.

[0018] The pad 13 supports the circuit board 31. The vibrator 32 and the damping member 33 are located away from the center of the circuit board 31 and adjacent to the edge of the circuit board 31. The damping member 33 is located on two opposite sides of the vibrator 32 along the edge of the circuit board 31. Specifically, each damping member 33 is a rectangular plate made of glass fiber (FR4). It should be noted that in other variations of this embodiment, the material, shape, and thickness of each damping member 33 are not limited, nor is the number of damping members 33 limited. Each damping member 33 may also be made of other fiber materials, and each damping member 33 may also be circular, L-shaped, arc-shaped, or other shapes. The number of damping members 33 may also be one or more.

[0019] By placing the damping element 33 near the vibrator 32 on the circuit board 31, the rigidity of the circuit board 31 can be improved. When the user presses the touch module 4, the force sensor 12 is triggered to generate and transmit a signal to the vibrator 32, causing the vibrator 32 to be triggered to drive the circuit board 31 to vibrate. At this time, the vibration of the area of ​​the circuit board 31 near the vibrator 32 is weakened due to the increased rigidity. Therefore, the vibration level of the touch module 4 corresponding to the damping element 33 is also weakened, which can reduce the numbness of the finger when pressing and improve the overall vibration uniformity of the touch module 4.

[0020] The vibration changes after the shock absorber 33 is installed on the circuit board 31 according to the present invention will now be described using comparative and specific examples. The specific example is the tactile touch panel of this embodiment. The difference between the comparative example and the specific example is that the comparative example does not have the shock absorber 33.

[0021] See Figure 3 The vibration intensity and uniformity measured at positions P1 to P9 on the touch module 4 in the comparative example and the specific example are shown in Table 1 below. Position P5 is located in the center of the touch module 4, and position P8 is adjacent to the vibrator 32.

[0022] Referring to Table 1, in the comparative example, the vibration intensities at positions P1 to P3 furthest from the vibrator 32 are 224, 232, and 248, respectively, while the vibration intensities at positions P7 to P9 adjacent to the vibrator 32 are 392, 428, and 392, respectively. The differences in vibration intensity between different positions are quite significant. Specifically, the vibration uniformity calculated from the vibration intensities at positions P1 to P9 in the comparative example is 32.1%, indicating that the vibration uniformity of the touch module 4 is not good. The vibration uniformity is calculated by subtracting the minimum vibration intensity from the maximum vibration intensity at positions P1 to P9, and then dividing by twice the average vibration intensity.

[0023] Referring to Table 1, in the specific example, the vibration intensities at positions P1 to P3 far from the vibrator 32 are 470, 454, and 471, respectively, and the vibration intensities at positions P7 to P9 adjacent to the vibrator 32 are 490, 478, and 486, respectively. The difference in vibration intensity between different positions is quite small. Specifically, the vibration intensity uniformity of the specific example is 3.8%, which is significantly better than that of the comparative example.

[0024] Table 1

[0025] Example Comparative example Specific example P1 seismicity (Hz) 224 470 P2 intensity (Hz) 232 454 P3 intensity (Hz) 248 471 P4 intensity (Hz) 296 476 P5 intensity (Hz) 336 461 P6 intensity (Hz) 316 469 P7 seismicity (Hz) 392 490 P8 intensity (Hz) 428 478 P9 seismicity (Hz) 392 486 Vibration uniformity (%) 32.1 3.8

[0026] In summary, the tactile touch panel of this utility model, by setting the damping element 33 at the location of the circuit board 31 near the vibrator 32, can improve the rigidity of the corresponding position of the circuit board 31, reduce vibration, and improve the vibration uniformity of the circuit board 31 and the touch module 4 as a whole, thus achieving the purpose of this utility model.

[0027] The above description is merely an embodiment of this utility model and should not be construed as limiting the scope of this utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of this utility model shall still fall within the scope of this utility model.

Claims

1. A tactile touchpad, comprising a force sensing module, a vibration module, and a touch module; characterized in that, The force sensing module includes a substrate and at least one force sensor disposed on the substrate. The vibration module includes a circuit board disposed above the force sensing module, a vibrator disposed on the circuit board and electrically connected to the at least one force sensor, and at least one damping member disposed on the circuit board and adjacent to the vibrator. The touch module is disposed above the circuit board.

2. The tactile touchpad according to claim 1, characterized in that, The vibration module includes two damping components. The vibrator and the damping components are disposed on the bottom surface of the circuit board. The vibrator and the damping components are located away from the center of the circuit board and adjacent to the edge of the circuit board. The damping components are located on two opposite sides of the vibrator along the edge of the circuit board.

3. The tactile touchpad according to claim 1, characterized in that, The at least one shock absorber is in the shape of a rectangular plate.

4. The tactile touchpad according to claim 1, characterized in that, The at least one shock absorber is made of fiberglass.

5. The tactile touchpad according to claim 1, characterized in that, The force sensing module also includes multiple pads disposed on the substrate and supporting the circuit board.

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