TWI734590B - Three-dimensional touch device and control method thereof - Google Patents

Abstract

The present invention is a three-dimensional touch device and a control method thereof, comprising a substrate, a light-emitting unit, a three-dimensional touch cover and a control unit, wherein the three-dimensional touch cover is covered on the substrate. The light-emitting unit include a plurality of light-emitting parts and located between the substrate and the three-dimensional touch cover. The control unit is connected to the three-dimensional touch cover and the plurality of light-emitting units. When the three-dimensional touch cover is touched by a user. The user can feel the shape of the three-dimensional touch cover to confirm that the three-dimensional touch cover is touched. At the same time, the light emitting parts associated with the touched position of the three-dimensional touch cover immediately emits light by the control unit.

Description

Stereo touch device and control method thereof

The present invention relates to a touch device and a control method thereof, in particular to a stereo touch device with a stereo touch cover and a control method thereof.

Press, many devices in traditional cars (such as air-conditioning, audio... etc.) are mainly controlled by various physical buttons and knobs. For example, when a driver is driving a vehicle, he can adjust the air-conditioning temperature by pressing the temperature adjustment button of the air-conditioning. Temperature, or use the knob of the car stereo to adjust the volume or broadcast channel, etc.

In recent years, with the development of hardware technology and the widespread use of touch technology in various electronic equipment fields, many automobile manufacturers have gradually replaced many physical buttons and knobs with touch panels, such as those produced by Mitsubishi Motors. The model "MITSUBISHI ECLIPSE CROSS" is equipped with a touch LCD screen and a touchpad (Smartphone Link Display Audio, SDA), allowing the driver to use the touch LCD screen for various functions, or when the driver is driving the vehicle , You can operate the touchpad next to the driver's seat to use the various functions displayed on the touch-sensitive LCD screen.

The above-mentioned touchpad is located next to the driver’s seat, which seems to allow the driver to easily operate, but in fact, the driver cannot easily find the touch if the driver’s line of sight is on the driving route during driving. The driver needs to be distracted from the driver’s sight to confirm the position of the touchpad before operating the touchpad. In this way, driving dangerous situations are prone to occur. Furthermore, the touch panel only has static light-emitting indicators and single-point touch functions, and fails to generate dynamic light according to the touch method, prompting touch displays and feedback messages from the vehicle system.

According to the above, in order to keep the eyes of the driver from leaving the driving route, and to drive the vehicle safely, and to appropriately reflect the information of the on-board system and the related touch display effect, it is necessary to develop a technology to solve the above problems. The car driver has been able to control the touchpad more intuitively to avoid dangerous driving situations.

In view of the problems of the prior art, the purpose of the present invention is to provide a touch device that allows the user to blindly press or touch the touch device, and when the touch device is touched, the touch device can emit light, and even further When the touch device is touched, there can be different light-emitting methods to indicate the touch mode, so that the user's eyes can feel the different light-emitting patterns and confirm the current touch film type.

According to the object of the present invention, a three-dimensional touch device is provided, which includes a substrate, a light-emitting unit, a three-dimensional touch cover, and a control unit. The position between the cover and the substrate, and the light-emitting unit is provided with a plurality of light-emitting parts, the control unit is arranged on the substrate and is connected to the light-emitting unit and the three-dimensional touch cover, and the control unit compares the touch position of the three-dimensional touch cover with the light-emitting parts The set position association makes the light-emitting unit corresponding to the position where the three-dimensional touch cover is touched by the user emit light.

Among them, the three-dimensional touch cover includes a light-transmitting cover and a touch film. The touch-control film is arranged on the surface of the light-transmitting cover, and each light-emitting part is arranged on the substrate corresponding to the projection of the touch film onto the substrate. The light-transmitting cover When the body surface is touched, the touch film generates a touch signal, the control unit receives the touch signal, and generates touch position information according to the touch signal, and then causes the light-emitting unit associated with the touch position information to output light.

Wherein, the touch film is provided with a plurality of sensing regions, the sensing regions are arranged in a matrix form, and each light-emitting part is arranged in an array form on the substrate and located within the projected range of the touch film.

Among them, the three-dimensional touch cover and the light-emitting unit are made by In-Mold Electronics (IME) technology, including the light-transmitting cover, the touch layer, the separation layer and the light-emitting unit. The light-transmitting cover system is set in On the substrate, the touch layer is provided on the entire area of the inner surface of the transparent cover, the touch layer is provided with a separation layer on the side of the substrate, and the light emitting unit is provided on the side of the separation layer on the substrate, and each light emitting part Scattered on the separation layer according to the shape of the light-transmitting cover, and the projection direction of the light source of each light-emitting part is toward the direction of the touch layer. Furthermore, the touch position of the touch layer is related to the position where each light-emitting part is arranged. The surface of the light shield body is touched to generate a touch signal, the control unit receives the touch signal, and generates touch position information according to the touch signal, and then causes the light-emitting part corresponding to the touched position on the surface of the transparent cover body to output light.

Among them, each light-emitting part is a multi-color light-emitting diode (RGB LED), a sub-millimeter light-emitting diode (Mini LED) or a micro-light-emitting diode (Micro LED).

Wherein, the light-emitting parts are connected in series in order to receive the control signal of the control unit, to emit light according to the control signal, and to receive the power from the external power supply unit.

Among them, the control unit is connected to an external system, and the external system sends an external control signal to the control unit, and the control unit controls the light emitting mode of each light-emitting part according to the external control signal.

Among them, the control unit includes a touch controller and a light-emitting controller. The touch controller receives the touch signal and generates touch position information based on the touch signal. The light-emitting controller uses the touch position information to make the transparent cover The light-emitting part corresponding to the touched position emits light on the surface of the body.

According to the objective of the present invention, a touch method is provided, which is applied to the aforementioned three-dimensional touch device, and includes the following steps. The three-dimensional touch cover is touched to generate a touch signal, and the control unit connected to the three-dimensional touch cover is The signal generates touch position information, and the control unit makes the light emitting parts of the light emitting unit connected to the control unit corresponding to the touched position of the stereo touch cover emit light according to the touch position information and the external control signal of the external system.

Wherein, the step of the control unit generating touch position information according to the touch signal further includes the control unit generating a plurality of touch signals according to the sensing area, and generating touch position information according to the intensity relationship of each touch signal.

Wherein, the step of generating touch position information by the control unit according to the intensity relationship of each touch sensing signal further includes obtaining the maximum sensing capacitance value of the touch signal and the sensing capacitance values around the maximum sensing capacitance value to generate the touch by interpolation. Location information.

Wherein, the control unit pre-sets a look-up table for each touch position information and the position of each light-emitting part on the substrate, and the look-up table is to project the sensing area to the position of each light-emitting part by interpolation to map each analog sensor. Each analog sensing block is respectively associated with one of the light-emitting parts.

According to the above, the present invention has one or more of the following advantages: (1) By feeling the shape of the three-dimensional touch cover, the user can blindly press to confirm the touch of the three-dimensional touch cover. (2) The three-dimensional touch device can be connected to an external system so that the three-dimensional touch device can display the operating status of the external system. (3) After the three-dimensional touch device is touched, the light-emitting unit can accurately generate a variety of corresponding light-emitting methods.

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the creation will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the creation, but not used to limit the creation.

Please refer to Figure 1, the present invention is a three-dimensional touch device, including a substrate 1, a three-dimensional touch cover 2, a light-emitting unit 3 and a control unit 4, wherein the substrate 1 can be a circuit board or a plastic film (for example: Polyethylene terephthalate (polyethylene terephthalate, abbreviated as: PET), but the present invention is not limited to this in actual implementation. The three-dimensional touch cover 2 is provided on the substrate 1, the light-emitting unit 3 is provided at a position corresponding to the position between the three-dimensional touch cover 2 and the substrate 1, and the light-emitting unit 3 is provided with a plurality of light-emitting parts 30, and each light-emitting part 30 is They are multi-color light-emitting diodes (RGB LED), sub-millimeter light-emitting diodes (Mini LED) or micro-light-emitting diodes (Micro LED), but the present invention is not limited to this in actual implementation. The control unit 4 is connected to the light-emitting unit 3 and the three-dimensional touch cover 2, and the control unit 4 associates the touch position of the three-dimensional touch cover 2 with the positions of the light-emitting parts 30, so that the three-dimensional touch cover 2 is touched by the user. The light emitting unit 30 corresponding to the position emits light.

In the present invention, the position where the three-dimensional touch cover 2 is touched by the user can be single-touch or multi-touch, and the light-emitting mode of the single-touch light-emitting unit 3 is shown in FIG. 2 , The light emitting part 30 of the projection position of the position A where the three-dimensional touch cover 2 is touched emits any kind of monochromatic light (the light emitting part 30 in FIG. 2 is represented by dots), please refer to FIG. 3, or The light-emitting part 30 at the position around the projection of the position A where the three-dimensional touch cover 2 is touched emits light of any two or more colors (the light-emitting part 30 in FIG. 3 represents different colors in different line types). Please refer to FIG. 4, or the light-emitting portion 30 at a position other than the projection area of the position A where the three-dimensional touch cover 2 is touched emits light of any one or more than two colors (the light-emitting portion 30 in FIG. 4 is marked with Pointer).

Furthermore, the light-emitting mode of the multi-touch light-emitting unit 3 is shown in FIG. The light-emitting portion 30 at the projection position emits any kind of monochromatic light (the light-emitting portion 30 in FIG. 5 is marked with dots), please refer to FIG. 6, or the three-dimensional touch cover 2 is touched by a multi-point touch The light emitting unit 30 at the orthographic projection position of the area passing between any two points of the position A emits light of any two or more colors (the light emitting unit 30 in FIG. 6 expresses different colors in different line types). In addition, please refer to FIG. 7, the light emitting mode of the multi-touch light-emitting unit 3 is an orthographic projection of the area surrounded by a straight line of any two points of the multi-touch position A where the three-dimensional touch cover 2 is touched. The position of the light-emitting portion 30 emits any kind of monochromatic light (the light-emitting portion 30 in FIG. 7 is marked with dots), please refer to FIG. 8, or it is the multi-point touch position where the three-dimensional touch cover 2 is touched The light-emitting part 30 at the orthographic projection position of the area surrounded by any two points of the straight line of A emits light of any two or more colors (the light-emitting part 30 in FIG. 8 expresses different colors in different line types).

To sum up, in the present invention, the light-emitting mode of the single-touch or multi-touch light-emitting unit 3 is not limited to the above-mentioned manner. For example, the touch position of the three-dimensional touch cover 2 and the light-emitting unit 3 Anything related to the light-emitting position falls within the scope of protection claimed by the present invention.

In the first embodiment of the present invention, referring to FIG. 9, the three-dimensional touch cover 2 includes a transparent cover 20 and a touch film 22. The transparent cover 20 is disposed on the substrate 1, and the touch film 22 It is set on the surface of the light-transmitting cover body 20, so that the light-transmitting cover body 20 forms a touch effective area at the position where the touch film 22 is provided. 30 is set on the substrate 1 corresponding to the touch film 22 (or called the effective touch area) projected into the substrate 1. When the surface of the transparent cover 20 is touched by the user, the touch film 22 generates a touch signal The control unit 4 receives the touch signal transmitted from the touch film 22, generates touch position information according to the touch signal, and then causes the light emitting unit 30 associated with the touch position information to output light.

Referring again to FIG. 9, the light-emitting parts 30 are arranged on the substrate 1 in an array according to the shape of the substrate 1 and located within the projected range of the touch film 22. The size of the transparent cover body 20 is that the radius of curvature (R) ≧ 40 mm, the depth (D) ≦ 20 mm, and the minimum width (L) ≧ 60 mm.

In this embodiment, please refer to FIG. 10, the touch film 22 is provided with a plurality of sensing regions 220, and the sensing regions 220 are arranged in a matrix. For example, the touch film 22 is a capacitive touch film , The capacitive touch film is provided with a plurality of scan lines S1~S6 criss-crossed and a plurality of data lines D1~D6 to form a plurality of sensing areas 220, and the scan lines S1~S6 Sequential scanning, the signal lines D1~D6 simultaneously transmit touch signals to the control unit 4 (further is the touch controller 40 shown in FIG. 14), and the control unit 4 obtains the capacitance value of the sensing area 220, and then deducts the reference capacitance Value, you can get the touch location information.

Please refer to FIG. 11, due to the boundary of the sensing area 220 formed by the touch film 22, it may not clearly correspond to only one of the light-emitting parts 30. In other words, one sensing area 220 may correspond to more than two light-emitting parts. Therefore, in order to improve the correspondence between each sensing area 220 and each light-emitting portion 30. In this embodiment, referring to FIG. 12, the control unit 4 maps the sensing area 220 into a plurality of analog sensing blocks 222. For example, the dotted frame in FIG. 11 is mapped to the dotted frame in FIG. 12 , So that each analog sensing block 222 corresponds to one of the light-emitting parts 30, and a lookup table is established accordingly, and the touch position information calculated by the control unit 4 according to the touch signal is the analog sensing block being touched 222, so that the light emitting unit 30 associated with the touched analog sensing block 222 outputs light. Furthermore, in the present invention, the touch position information calculated by the control unit 4 by interpolation according to the maximum sensing value in the touch signal and the surrounding sensing values is equivalent to the control unit 4 detecting the sensing area 220 The mapping is divided into a plurality of analog sensing blocks 222.

In the above-mentioned embodiment, the transparent cover body 20 is a touch ineffective area outside the touch film 22, and the touch ineffective area may cause inconvenience or trouble in use, for example, when the user touches the touch ineffective area No light emitting part 30 emits light, which may cause the user to misunderstand that the three-dimensional touch device is damaged, or the operating range of the three-dimensional touch device is too small, which is not conducive to the operation of the user. In the embodiment, please refer to FIG. 13, the three-dimensional touch cover 2 and the light-emitting unit 3 are made by molding electronic technology, and include a light-transmitting cover 20, a touch layer 24, a separation layer 26 and a light-emitting unit 3. The light-transmitting cover 20 is provided on the substrate 1, the touch layer 24 is provided on all areas of the inner surface of the light-transmitting cover 20, the touch layer 24 is equivalent to the touch film 22 of the first embodiment, and the touch layer 24 is provided with a separation layer 26 on the side facing the substrate 1. The separation layer 26 can be made of plastic material, and the light emitting unit 3 is provided on the side of the separation layer 26 facing the substrate 1, and each light emitting portion 30 is transparent The shape of the cover 20 is scattered on the separation layer 26, and the projection direction of the light source of each light-emitting part 30 is toward the direction of the touch layer 24, and the touch layer 24 is touched on the transparent cover 20 to generate a touch signal, and The control unit 4 generates touch position information according to the touch signal. Each touch position information is previously associated with the position of one of the light-emitting parts 30, so that the light-emitting part 30 corresponding to the touched position on the surface of the transparent cover 20 can be Output light.

In the present invention, referring to FIG. 14, the light-emitting parts 30 of the light-emitting unit 3 are sequentially connected in series to receive the control signal of the control unit 4 to emit light according to the control signal. Each light emitting unit 30 is connected in parallel to the power supply unit 5 to receive the power provided by the power supply unit 5. The control unit 4 is connected to the external system 6, and the external system 6 sends an external control signal to the control unit 4. The control unit 4 controls the light-emitting mode of each light-emitting unit 30 according to the external control signal. The external system 6 can be a vehicle-mounted system or a computer. An electronic device that sends out an external control signal. For example, the external system 6 is an in-vehicle system. Single-touch corresponds to an external control signal to open the door, and multi-touch corresponds to an external control signal to lock or unlock the door. Or the single-touch corresponds to the external control signal to open or close the window anti-pinch function, the multi-touch corresponds to the external control signal to open or close the window, or the single-touch corresponds to the display The external control signal of the temperature inside the car, the multi-touch corresponds to the external control signal of the temperature outside the car, and each light-emitting part 30 of the light-emitting unit 3 displays temperature information. In addition, the light-emitting mode of the light-emitting unit 3 in the aforementioned multi-touch or single-touch is determined by the external system 6 inputting setting information to the control unit 4.

In the present invention, the control unit 4 can be arranged on the substrate 1 and includes a touch controller 40 and a light-emitting controller 42. The touch controller 40 receives a touch signal and generates a touch position based on the touch signal. News. In addition, the light-emitting controller 42 causes the light-emitting portion 30 corresponding to the touched position on the surface of the transparent cover 20 to emit light based on the touch position information.

Please refer to FIG. 15. The present invention is a touch method applied to a three-dimensional touch device and includes the following steps: (S101) The three-dimensional touch cover 2 is touched to generate a touch signal; (S102) The control unit 4 generates touch position information according to the touch signal; (S103) The control unit 4 receives the touch position information and the external control signal of the external system 6; (S104) The control unit 4 causes each light-emitting portion 30 of the touched position of the associated three-dimensional touch cover 2 to emit light.

In the present invention, the step of the control unit 4 generating touch position information according to the touch signal further includes the control unit 4 generating a plurality of touch signals according to the sensing area 220, and generating touch signals according to the sensing intensity relationship of each touch signal. Control location information.

Furthermore, the step of generating touch position information by the control unit 4 according to the intensity relationship of each touch sensing signal further includes obtaining the maximum sensing capacitance value of the touch signal and the sensing capacitance value around the maximum sensing capacitance value using interpolation Method to generate touch location information. For example, please refer to Figure 16, the calculation method of the touch position information mapped into a 90x60 matrix by interpolation using a 3x2 matrix is a schematic diagram of the sensing value (capacitance value) sensed around the first touch position. The maximum sensing capacitance value is 200, the sensing capacitance value around the maximum sensing capacitance value in the X-axis direction is 70, and the sensing capacitance value around the maximum sensing capacitance value in the Y-axis direction is 10, the calculation method of the first touch position as follows: 1. Calculate the coordinates in the X direction: X = {[(200 x 60) + (70 x 90)] / (200 + 70)} – 30 = 37 2. Calculate the Y-direction coordinates: Y = {[(200 x 90) + (10 x 60)] / (200 + 10)} – 30 = 58 The above-mentioned sensing capacitance value is only expressed as a numerical value, not the real sensing capacitance value, so the unit is ignored, and the calculated coordinate position is (37,58).

Please refer to Figure 17, which is a schematic diagram of the sensing value (capacitance value) sensed around the second touch position. The maximum sensing capacitance value is 200, and the sensing capacitance value around the X axis direction is the maximum sensing capacitance value. 10. 70. The sensing capacitance value around the Y axis direction of the maximum sensing capacitance value is 5. The calculation method of the second touch position is as follows: 1. Calculate the coordinates in the X direction: X = {[(10 x 60) + (200 x 90) + (70 x 120)] / (10 + 200 + 70)} – 30 = 66 2. Calculate the Y-direction coordinates: Y = {[(200 x 60) + (5 x 90)] / (200 + 5)} – 30 = 30 The above-mentioned sensing capacitance value is only expressed as a numerical value, not the real sensing capacitance value, so the unit is ignored, and the calculated coordinate position is (66,30).

In summary, the control unit 4 presets a look-up table for each touch position information and the position of each light-emitting part 30 on the substrate 1, and the look-up table projects the sensing area 220 to the position of each light-emitting part 30 It is mapped to a plurality of analog sensing blocks 222 by interpolation, and each analog sensing block 222 is respectively associated with one of the light-emitting parts 30. Therefore, the calculated light-emitting portion associated with the first and second touch positions can be used. The section 30 outputs light.

According to the above, when the three-dimensional touch device is installed on the vehicle, the driver can find the three-dimensional touch device by blindly pressing without leaving the driving route, and then using single-point or multi-point touch , You can operate the various control functions provided by the on-board system, so that the driver can drive the vehicle safely. In addition, the light-emitting unit 3 can also output information reflecting the vehicle-mounted system and related touch display effects, so that the present invention solves the problem of the use of the touch device in the prior art.

The above detailed description is a specific description of the feasible embodiments of the present invention, but the foregoing embodiments are not intended to limit the scope of the present invention. Any equivalent implementation or modification that does not deviate from the technical spirit of the present invention should be included in In the scope of the patent in this case.

1: substrate

2: Stereo touch cover

20: Translucent cover

22: Touch film

220: sensing area

222: Analog sensing block

24: Touch layer

26: Separation layer

3: Light-emitting unit

30: Light-emitting part

4: control unit

40: Touch controller

42: Luminous controller

5: Power supply unit

6: External system

S1~S6: scan line

D1~D6: data line

S101~S104: Process steps

A: Touch position

1 Figure 1 is a schematic diagram of the appearance of the present invention. FIG. 2 is a schematic diagram of a single-point touch of FIG. 1. FIG. 3 is another schematic diagram of the single-point touch of FIG. 1. FIG. 4 is another schematic diagram of the single-point touch of FIG. 1. FIG. 5 is a schematic diagram of a multi-touch in FIG. 1. FIG. 6 is another schematic diagram of multi-touch in FIG. 1. FIG. 7 is another schematic diagram of multi-touch of FIG. 1. FIG. 8 is still another schematic diagram of multi-touch of FIG. 1. Fig. 9 is a schematic diagram of the first embodiment of the present invention. FIG. 10 is a schematic diagram of the sensing area of the touch film of the present invention. FIG. 11 is a schematic diagram of the positions of the sensing area and the light-emitting unit of the present invention. FIG. 12 is a schematic diagram of the positions of the analog sensing block and the light-emitting unit of the present invention. Fig. 13 is a schematic diagram of the second embodiment of the present invention. Fig. 14 is a schematic diagram of the connection between the control unit, the external system and the light-emitting unit of the present invention. FIG. 15 is a schematic flow chart of the touch method of the present invention. FIG. 16 is a schematic diagram of the sensing state of an analog sensing block of the present invention. FIG. 17 is a schematic diagram of the sensing state of another analog sensing block of the present invention.

1: substrate

2: Stereo touch cover

3: Light-emitting unit

4: control unit

Claims (13)

A three-dimensional touch device includes: a substrate; a three-dimensional touch cover arranged on the substrate, and the three-dimensional touch cover is touched to generate a touch signal; The touch cover is covered, and the light-emitting unit has a plurality of light-emitting parts; and a control unit electrically connected to the light-emitting unit and the three-dimensional touch cover, and the control unit generates touch position information according to the touch signal, and Associate the touch position information with one of the light-emitting parts, and make the associated light-emitting parts emit light; wherein, the three-dimensional touch cover further includes: a light-transmitting cover provided on the substrate; and a touch The control film is arranged on the surface of the transparent cover, and the touch film is provided with a plurality of sensing areas; wherein, each of the light-emitting parts is arranged on the substrate and corresponds to the projection of the touch film onto the substrate; The control unit receives the touch signal transmitted from the touch film, generates the touch position information according to the touch signal, and then causes the light-emitting unit associated with the touch position information to output light. The three-dimensional touch device according to claim 1, wherein each of the light-emitting parts is a multi-color light-emitting diode, a sub-millimeter light-emitting diode, or a micro-light-emitting diode. The three-dimensional touch device according to claim 1, wherein the size of the transparent cover body is a radius of curvature (R)≧40mm, a depth (D)≦20mm, and a minimum width (L)≧60mm. The three-dimensional touch device according to claim 1, wherein the control unit divides the sensing area mapping into a plurality of analog sensing blocks, each of the analog sensing blocks corresponds to one of the light-emitting parts, and establishes a Look up the comparison table, and the control unit calculates the touch position information according to the touch signal, namely It is the analog sensing block that is touched, so that the light-emitting part associated with the analog sensing block that is touched outputs light. The three-dimensional touch device according to claim 1, wherein the control unit calculates the touch position information by interpolation according to the largest sensing value in the touch signal and the surrounding sensing values. The three-dimensional touch device according to claim 1, wherein the three-dimensional touch cover and the light-emitting unit are made of molded electronic technology, and include: a light-transmitting cover provided on the substrate; The control layer is arranged on all areas of the inner surface of the transparent cover, and the touch control layer is touched on the transparent cover to generate the touch signal; a separation layer is arranged on the touch control layer to the substrate And the light-emitting unit is provided on the side of the partition layer facing the substrate; wherein, the light source projection direction of each light-emitting part is toward the direction of the touch layer, and each of the touch position information systems emits light with one of them respectively The location of the department is associated. The three-dimensional touch device according to claim 1, wherein the light-emitting parts are sequentially connected in series, and receive the control signal of the control unit, and emit light according to the control signal. The three-dimensional touch device according to claim 1, wherein each of the light-emitting parts is connected to a power supply unit in parallel, and receives power provided by the power supply unit. The three-dimensional touch device according to claim 1, wherein the control unit is connected to an external system, the external system sends an external control signal to the control unit, and the control unit controls the light-emitting mode of each light-emitting part according to the external control signal . The three-dimensional touch device according to claim 1, wherein the control unit includes: A touch controller that receives the touch signal and generates the touch position information based on the touch signal; and a light-emitting controller that causes the surface of the transparent cover to be touched based on the touch position information The light-emitting part associated with the position emits light. A touch method, which is applied to the three-dimensional touch device according to any one of claim items 1 to 7, includes the following steps: the three-dimensional touch cover is touched to generate the touch signal; the control unit is based on the sensing area Each of the touch signals is generated; the control unit generates the touch position information according to the sensing intensity relationship of each touch signal; the control unit receives the touch position information and an external control signal of an external system; the control unit makes the The light-emitting parts associated with the touched position of the three-dimensional touch cover emit light. The touch method according to claim 11, wherein the step of generating the touch position information by the control unit according to the intensity relationship of each of the touch sensing signals is further to obtain the maximum sensing capacitance value and the maximum sensing value of the touch signal The sensing capacitance value around the capacitance value uses interpolation to generate the touch position information. The touch method according to claim 11, wherein the control unit pre-sets a lookup table for each of the touch position information and the position of each of the light-emitting parts on the substrate, and the lookup table is for the sensing The area projected to the position of each light-emitting part is mapped into a plurality of analog sensing blocks by interpolation, and each of the analog sensing blocks is respectively associated with one of the light-emitting parts.

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