CN203102199U - Touch panel and touch device - Google Patents

Abstract

A touch panel is suitable for sensing a battery-free wireless index element. The touch panel comprises a display unit, a touch unit, an antenna unit and a processing unit. The display unit has a first surface and a second surface opposite to the first surface. The touch unit is configured on the first surface of the display unit and used for receiving the induction signal generated by the battery-free wireless index element so as to generate a touch signal. The antenna unit is configured on the second surface of the display unit and used for transmitting the frequency signal according to the control signal. The processing unit is coupled to the touch unit and the antenna unit, and is configured to receive the touch signal, calculate a coordinate position of the battery-free wireless pointer device according to the touch signal, and generate a control signal according to the coordinate position to control the antenna unit to transmit the frequency signal.

Description

Touch Panels and Touch Devices

technical field

The utility model relates to a touch device, in particular to a touch panel and a touch device.

Background technique

Most of the touch panels currently on the market are used with wireless indicator components. When the wireless indicator component touches the touch panel, the wireless indicator component will generate an electromagnetic field, so that the touch panel can use magnetic coupling to calculate the current state of the wireless indicator component. coordinate position, and then transmit the coordinate position to the computer.

At present, the power supply required for the operation of the wireless indicator element is mainly powered by a disposable battery or by electromagnetic resonance. If a disposable battery is used for power supply, the battery of the wireless indicator element must be replaced frequently, which is extremely inconvenient and environmentally friendly for the user. Therefore, the electromagnetic resonance method is the most appropriate power supply method at present.

However, some touch panels currently use Indium Tin Oxide (ITO) sensors. Due to the high impedance of the ITO material, it may not be suitable for energy conduction, so that the wireless indicator components cannot be effectively obtained. Therefore, the wireless indicator element still needs to use a disposable battery to obtain power. In this way, the size and cost of the wireless indicator element will be increased, so there is still room for improvement in the power supply of the wireless indicator element and the touch panel.

Utility model content

The purpose of the present invention is to provide a touch panel and a touch device, so that the wireless indicator device does not need to use batteries, so as to reduce the volume of the wireless indicator device and increase the convenience of use.

In order to achieve the above purpose, the utility model provides a touch panel, which is suitable for sensing a battery-free wireless indicator element, and the touch panel includes:

A display unit has a first surface and a second surface opposite to the first surface;

A touch unit, configured on the first surface of the display unit, is used to receive a sensing signal generated by the battery-free wireless indicator element to generate a touch signal;

an antenna unit, configured on the second surface of the display unit, for transmitting a frequency signal according to a control signal; and

A processing unit, coupled to the touch unit and the antenna unit, for receiving the touch signal, and calculating the coordinate position of the battery-free wireless indicator element according to the touch signal, and according to the coordinate position, generating the control signal to control the antenna unit to transmit the frequency signal.

In one embodiment, the material of the touch control unit is indium tin oxide.

In one embodiment, the antenna unit includes a plurality of antenna loops for transmitting the frequency signal, and the processing unit further controls at least one of the antenna loops to transmit the frequency signal according to the coordinate position.

In one embodiment, the aforementioned antenna loops form the antenna unit in a manner of edge overlap or edge abutment.

In one embodiment, the area of the aforementioned antenna unit is smaller than the area of the display unit.

To achieve the above purpose, the utility model also provides a touch device, which includes:

A touch panel, comprising:

A display unit has a first surface and a second surface opposite to the first surface;

A touch unit, configured on the first surface of the display unit, is used to receive a sensing signal generated by the battery-free wireless indicator element to generate a touch signal;

an antenna unit, configured on the second surface of the display unit, for transmitting a frequency signal according to a control signal; and

A processing unit, coupled to the touch unit and the antenna unit, for receiving the touch signal, and calculating the coordinate position of the battery-free wireless indicator element according to the touch signal, and according to the coordinate position, generating the control signal to control the antenna unit to transmit the frequency signal; and

A battery-free wireless indicator component, consisting of:

a power supply unit for receiving the frequency signal and generating a power signal accordingly; and

A sensing unit is used to receive the electric power signal to generate a sensing signal, and transmit the sensing signal to the touch unit.

In one embodiment, the material of the touch control unit is indium tin oxide.

In one embodiment, the antenna unit includes a plurality of antenna loops for transmitting the frequency signal, and the processing unit further controls at least one of the antenna loops to transmit the frequency signal according to the coordinate position.

In one embodiment, the aforementioned antenna loops form the antenna unit in a manner of overlapping edges or adjacent edges.

In one embodiment, the area of the aforementioned antenna unit is smaller than the area of the display unit.

The utility model discloses a touch panel and a touch device, by disposing the touch unit on the first surface of the display unit of the touch panel, and disposing the antenna unit on the second surface of the display unit opposite to the first surface , and then use the touch unit to sense the battery-free wireless indicator component, and use the processing unit to calculate and know the coordinate position of the battery-free wireless indicator component, so as to generate a control signal to control the antenna unit to generate a frequency signal to the battery-free wireless indicator component, Furthermore, the working power required by the battery-free wireless indicator element is supplied. In addition, the charging unit can also include multiple antenna loops, and the processing unit can selectively control the antenna loops to generate frequency signals, and the area of the charging unit can also be set to be smaller than the area of the display panel. In this way, the volume of the battery-free wireless indicator device and the layout area of the antenna unit can be reduced, thereby increasing the convenience of use.

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Description of drawings

Fig. 1 is the circuit block diagram of the touch device of the present utility model;

2 is a perspective view of the touch device of the present invention;

3 is a schematic diagram of the configuration relationship of the antenna loop of the antenna unit of the present invention;

4 is a schematic diagram of another configuration relationship of the antenna loop of the antenna unit of the present invention;

FIG. 5 is a schematic diagram of the configuration relationship between the display unit and the antenna unit of the present invention.

100 touch devices

110 touch panel

120 display units

121 First side

122 Second Side

130 touch unit

140 antenna units

141, 142, 143 Antenna loop

150 processing units

160 battery-free wireless indicator components

170 power supply unit

180 induction units

501, 502, 503 touch points

Detailed ways

In the various embodiments listed below, the same or similar elements will be represented by the same reference numerals.

Please refer to FIG. 1 and FIG. 2 , which are respectively a circuit block diagram and a perspective view of the touch device of the present invention. The touch device 100 includes a touch panel 110 and a battery-free wireless indicator device 160 . Wherein, the touch panel 110 can be a peripheral device such as a handwriting pad or drawing tablet with an electromagnetic touch panel, and the battery-free wireless indicator element 160 can be an electromagnetic stylus for operating the touch panel 110 .

The touch panel 110 includes a display unit 120 , a touch unit 130 , an antenna unit 140 and a processing unit 150 . The display unit 120 has a first surface 121 and a second surface 122 opposite to the first surface 121 , and the display unit 120 is used for displaying corresponding operations of the touch panel 110 .

The touch unit 130 is disposed on the first surface 121 of the display unit 120 for receiving a sensing signal generated by the battery-free wireless indicator device 160 to generate a touch signal. Wherein, the touch unit 130 constitutes a sensing area for sensing the battery-free wireless indicator element 160, so that when the battery-free wireless indicator element 160 touches the touch unit 130, the touch unit 130 can sense the battery-free wireless indicator element 160. The generated sensing signal is used to generate a corresponding touch signal. In this embodiment, the material of the touch unit 130 is, for example, Indium Tin Oxide (ITO).

The antenna unit 140 is disposed on the second surface 122 of the display unit 120, and is used for converting the control signal into a frequency signal according to the control signal, and transmitting the aforementioned frequency signal. That is to say, the antenna unit 140 can convert the control signal into a corresponding frequency signal according to the trigger of the control signal, and send the frequency signal to the battery-free wireless indicator component 160 to provide the required work of the battery-free wireless indicator component 160 electricity.

The processing unit 150 is coupled to the touch control unit 130 and the antenna unit 140 to receive the touch signal, and calculate the coordinate position of the battery-free wireless indicator element 160 according to the touch signal. Moreover, the processing unit 150 generates a control signal to the antenna unit 140 according to the calculated coordinate position, so as to control the antenna unit 140 to transmit a corresponding frequency signal. In addition, the processing unit 150 is further coupled to the display unit 120 so as to generate a processing status signal corresponding to the touch signal and transmit it to the display unit 120 to display corresponding operations on the display unit 120 .

In this embodiment, the antenna unit 140 may include multiple antenna loops 141 , 142 , 143 for transmitting frequency signals. In one embodiment, adjacent antenna loops 141 , 142 and 142 , 143 may partially overlap, that is, their edges partially overlap, as shown in FIG. 3 . In another embodiment, adjacent antenna loops 141 , 142 and 142 , 143 may also be designed so that their edges do not overlap, that is, their edges are adjacent, as shown in FIG. 4 .

In FIG. 3 and FIG. 4 , only three antenna loops 141 , 142 , and 143 are drawn, but this embodiment is not limited thereto, and users can use 2, 4 or more than 4 antenna loops for implementation.

Further, the processing unit 150 can selectively generate a control signal to at least one of the antenna loops 141, 142, 143 according to the calculated coordinate position, so as to control at least one of the antenna loops 141, 142, 143 to transmit frequency signal.

For example, when the battery-free wireless indicator element 160 touches the touch unit 130 and is located on the antenna loop 141, the processing unit 150 can calculate and know the battery-free wireless signal according to the touch signal generated by the touch unit 130. The coordinate position of the wireless indicator element 160 is used to generate a control signal to the antenna loop 141 to control the frequency signal emitted by the antenna loop 141 .

On the other hand, since the processing unit 150 is not provided to the antenna loops 142 , 143 , the antenna loops 142 , 143 are not enabled and do not transmit frequency signals. The rest are analogous. In this way, selectively controlling the corresponding antenna loops 141 , 142 , 143 to transmit frequency signals to the battery-free wireless indicator device 160 can avoid energy loss.

In another embodiment, the processing unit 150 can also generate control signals to multiple adjacent antenna loops at the same time, for example, simultaneously generate control signals to the antenna loops 141 and 142, so as to selectively control the frequency signals transmitted by the antenna loops 141 and 142, Or generate control signals to the antenna loops 142 and 143 at the same time, so as to select and control the frequency signals transmitted by the antenna loops 142 and 143 .

In addition, in this embodiment, the area of the antenna unit 140 can be designed to be smaller than the area of the display panel 120, for example, as shown in FIG. effect. Moreover, the area of the touch unit 130 is, for example, consistent with the area of the display panel 120 , that is, the area of the antenna unit 140 is also, for example, smaller than the sensing area formed by the touch unit 130 .

Since the area of the antenna unit 140 is smaller than the sensing area formed by the touch unit 130, when the battery-free wireless indicator element 160 touches the touch unit 130, the battery-free wireless indicator element 160 will, for example, be adjacent to the position of the antenna unit 140 (for example, The position of the touch point 501 or 503 shown in FIG. 5 ), instead of the position on the antenna unit 140 , or the position on the antenna unit 140 (such as the position of the touch point 502 shown in FIG. 5 ).

For example, when the battery-free wireless indicator element 160 touches the touch unit 130 and is adjacent to the position of the antenna loop 141 (such as the position of the touch point 501 shown in FIG. The generated touch signal calculates and obtains the coordinate position of the battery-free wireless indicator element 160 , and generates a control signal to the antenna loop 141 to control the frequency signal emitted by the antenna loop 141 . Moreover, since the processing unit 150 is not provided to the antenna loops 142 , 143 , the antenna loops 142 , 143 are not enabled and do not transmit frequency signals. The rest are analogous.

In addition, when the battery-free wireless indicator element 160 touches the touch unit 130 and is adjacent to the positions of the adjacent antenna loops 141 and 142 (such as the position of the touch point 503 shown in FIG. 5 ), the processing unit 150 can simultaneously Generate control signals to the adjacent antenna loops 141 and 142 to control the frequency signals transmitted by the antenna loops 141 and 142 . The rest are analogous.

On the other hand, when the battery-free wireless indicator element 160 touches the touch unit 130 and is located at a position on the antenna loop 141 (such as the position of the touch point 502 shown in FIG. 5 ), the processing unit 150 can still generate a control signal to The antenna loop 141 is used to control the frequency signal emitted by the antenna loop 141, and is not provided to the antenna loops 142, 143, so that the antenna loops 142, 143 are not enabled and do not transmit the frequency signal. The rest are analogous.

In addition, when the battery-free wireless indicator element 160 touches the touch unit 130 and is located at a position on the antenna loop 141 (such as the position of the touch point 502 shown in FIG. 5 ), the processing unit 150 can still simultaneously generate a control signal to the corresponding The adjacent antenna loops 141 and 142 are used to control the frequency signals transmitted by the antenna loops 141 and 142. The rest are analogous.

In FIG. 5, the antenna loops 141, 142, 143 of the antenna unit 140 are shown in a manner similar to FIG. Figure 4 can also achieve the same effect, so it will not be repeated here.

The battery-free wireless indicator device 160 includes a power supply unit 170 and a sensing unit 180 . The power supply unit 170 is used for receiving frequency signals and generating power signals accordingly. Further, the power supply unit 170 may include, for example, a plurality of induction coils and a rectification circuit. After the induction coils can simultaneously receive the frequency signal sent by the antenna unit 140 , the induction coils will exhibit the same frequency, and induce electromagnetic resonance effect, so as to generate an energy signal to the rectification circuit. Afterwards, the rectifier circuit utilizes the aforementioned energy signal to generate a required power signal to supply the power required for the operation of the battery-free wireless indicator device 160 .

The sensing unit 180 is used for receiving the power signal to generate a sensing signal and transmit the sensing signal to the touch unit 130 . Further, the induction unit 180 may include, for example, an oscillation circuit and an induction coil. The oscillating circuit maintains its operation by the power signal generated by the power supply unit 170 to generate the sensing signal. Then, the induction coil can transmit the induction signal generated by the oscillating circuit to the touch unit 130 .

The antenna unit 140 of the touch panel 110 transmits a frequency signal to the battery-free wireless indicator element 160 to provide the required operating power for the battery-free wireless indicator element 160, so that the battery-free wireless indicator element 160 can operate the touch panel 110 , and perform corresponding operations. In this way, since the battery-free wireless indicator component 160 does not need a battery, the volume of the battery-free wireless indicator component 160 can be reduced.

The touch panel and the touch device proposed by the utility model, by disposing the touch unit on the first surface of the display unit of the touch panel, and disposing the antenna unit on the second surface of the display unit opposite to the first surface, Then use the touch unit to sense the battery-free wireless indicator element, and use the processing unit to calculate and know the coordinate position where the battery-free wireless indicator element contacts, so as to generate a control signal to control the antenna unit to generate a frequency signal to the battery-free wireless indicator element, and then Supply the operating power required by the battery-free wireless indicator element. In addition, the charging unit can also include multiple antenna loops, and the processing unit can selectively control the antenna loops to generate frequency signals, and the area of the charging unit can also be set to be smaller than the area of the display panel. In this way, the volume of the battery-free wireless indicator device and the layout area of the antenna unit can be reduced, thereby increasing the convenience of use.

Of course, the utility model can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the utility model without departing from the spirit and essence of the utility model, but These corresponding changes and deformations should all belong to the protection scope of the appended claims of the present utility model.

Claims (10)

1. A touch panel, suitable for sensing a battery-free wireless indicator element, characterized in that the touch panel includes: A display unit has a first surface and a second surface opposite to the first surface; A touch unit, configured on the first surface of the display unit, is used to receive a sensing signal generated by the battery-free wireless indicator element to generate a touch signal; an antenna unit, configured on the second surface of the display unit, for transmitting a frequency signal according to a control signal; and A processing unit, coupled to the touch unit and the antenna unit, for receiving the touch signal, and calculating the coordinate position of the battery-free wireless indicator element according to the touch signal, and according to the coordinate position, generating the control signal to control the antenna unit to transmit the frequency signal. 2 . The touch panel according to claim 1 , wherein the touch unit is made of indium tin oxide. 3. The touch panel according to claim 1, wherein the antenna unit includes a plurality of antenna loops for transmitting the frequency signal, wherein the processing unit controls the coordinates according to the coordinate position. At least one of the antenna loops transmits the frequency signal. 4 . The touch panel according to claim 3 , wherein the antenna loops form the antenna unit in a manner of overlapping edges or adjacent edges. 5. The touch panel according to claim 1, wherein an area of the antenna unit is smaller than an area of the display unit. 6. A touch device, characterized in that it comprises: A touch panel, comprising: A display unit has a first surface and a second surface opposite to the first surface; A touch unit, configured on the first surface of the display unit, is used to receive a sensing signal generated by the battery-free wireless indicator element to generate a touch signal; an antenna unit, configured on the second surface of the display unit, for transmitting a frequency signal according to a control signal; and A processing unit, coupled to the touch unit and the antenna unit, for receiving the touch signal, and calculating the coordinate position of the battery-free wireless indicator element according to the touch signal, and according to the coordinate position, generating the control signal to control the antenna unit to transmit the frequency signal; and A battery-free wireless indicator component, consisting of: a power supply unit for receiving the frequency signal and generating a power signal accordingly; and A sensing unit is used to receive the electric power signal to generate a sensing signal, and transmit the sensing signal to the touch unit. 7. The touch device according to claim 6, wherein the material of the touch unit is indium tin oxide. 8. The touch device according to claim 6, wherein the antenna unit comprises a plurality of antenna loops for transmitting the frequency signal, wherein the processing unit further controls the coordinates according to the coordinate position. At least one of the antenna loops transmits the frequency signal. 9 . The touch device according to claim 8 , wherein the antenna loops form the antenna unit in a manner of overlapping edges or adjacent edges. 10 . The touch device according to claim 6 , wherein an area of the antenna unit is smaller than an area of the display unit. 11 .

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