CN101556515B - Touch sensing component and touch sensing device - Google Patents

Abstract

The invention discloses a touch sensing assembly, which comprises an accommodating space, a first substrate layer, a second substrate layer, a driver and a sensor. The first substrate layer and the second substrate layer define the containing space, and the containing space is used for containing a fluid. The driver can provide charges to a first conductive layer of the first substrate layer, a second conductive layer of the second substrate layer, and the fluid. The sensor is capable of sensing an electrical characteristic of the fluid. When an indicating unit approaches the touch sensing component and affects the charges, the geometric shape of the fluid changes, so that the electrical characteristics of the fluid change.

Description

Touch sensing component and touch sensing device

technical field

The present invention relates to a touch sensing component and a touch sensing device using the touch sensing component, and in particular, the present invention relates to a touch sensing component using the electro-humidity effect for touch and using the touch sensing component touch-sensitive device.

Background technique

The touch panel originated from the idea of the electronic touch interface proposed by Dr. Samue1 C. Hurst in 1971, and the earliest touch panel appeared in 1974. It was originally developed by the US military for military use, and the technology was transferred to the US military in the 1980s. After folk, various applications have been developed one after another.

In recent years, due to the vigorous development of wireless networks and the electronic industry, portable electronic devices with wireless transmission and small size are widely used in various occasions to meet market demands, such as personal digital assistants or mobile phones. In order to take into account the portability and functionality of portable electronic devices, small-sized touch panels have gradually replaced traditional input devices such as keyboards, mice, trackballs, trackpoints, etc. , has become the focus of research in various circles.

Touch panel technologies are generally classified into resistive, capacitive, photoelectric, and ultrasonic. The resistive touch panel is composed of upper and lower layers of indium tin oxide (Indium Tin Oxides, ITO) conductive layers. When an object touches the upper ITO layer to make it concave and contacts the lower ITO layer, the panel itself will form a voltage change, and the controller senses the change and then calculates the position of the contact point for input action.

The capacitive touch panel uses the capacitance change generated by the electrostatic combination between the transparent electrodes arranged in sequence and the object, and then generates an induced current to detect the coordinates of the contact point.

The principle of the optical touch panel is to arrange infrared transmitters and receivers around the panel, so that the infrared rays form a matrix arrangement of X-axis and Y-axis inside the panel. When an opaque object touches the panel, it will block the infrared rays of the contact point, and the position of the contact point can be determined by the blocked infrared ray coordinates.

The surface of the ultrasonic touch panel is completely composed of glass, and the ultrasonic emitters in the corners of the panel form a uniform sound wave force field in the central area. When a soft object touches the panel, it will absorb the ultrasonic wave and cause its intensity to attenuate. The controller compares the attenuation of the received signal to calculate the position of the contact point.

With the in-depth development of touch technology, portable electronic devices may have more functions and be easier to operate and more intuitive to use. For example, the multi-touch technology can enable the touch panel to perform more complex input commands, and the user does not need to memorize more input methods to complete these input commands. On the other hand, the touch panel can also be used to measure external contact force and pressure.

However, in order for the portable electronic device to achieve the above functions, the circuit and electrode design of the touch panel will be complicated, so it is easy to affect its light transmittance, resulting in the light emitted by the display panel below the touch panel. The light intensity is reduced by the touch panel. In this way, the brightness of the display screen of the portable electronic device will be insufficient to damage the user's eyesight, or the manufacturer increases the light intensity emitted by the display panel in order to increase the brightness of the screen, thereby increasing the power consumption of the portable electronic device.

Contents of the invention

Therefore, one aspect of the present invention is to provide a touch sensing device utilizing the electro-humidity effect, which has high light transmittance and can solve the above-mentioned problems.

According to a specific embodiment, the touch sensing device of the present invention includes a touch sensing component, and the touch sensing component further includes an accommodating space, a first substrate layer, a second substrate layer, a driver, and a sensor. The first substrate layer has a first dielectric layer and a first conductive layer. The second substrate layer has a second dielectric layer and a second conductive layer. The first substrate layer and the second substrate layer can define an accommodating space for accommodating a fluid, and the fluid can contact the first dielectric layer and the second dielectric layer. The driver can respectively provide the first charge, the second charge and the third charge to the first conductive layer, the second conductive layer and the fluid, wherein the charge polarity of the first charge and the second charge is the same, and the charge polarity of the third charge is It is the opposite of the above two. The sensing unit can be used to sense electrical properties of the fluid.

In this embodiment, the first charge, the second charge and the third charge can determine the geometry of the fluid. In addition, the electrical properties of the fluid are determined according to the geometry of the fluid, the properties of the fluid, and the amount of the third charge. When the object with the fourth charge approaches the first substrate layer so that the first charge is changed by the influence of the fourth charge, the geometric shape of the fluid will also change, resulting in changes in the electrical properties of the fluid. The change of the above electrical characteristics can be sensed by the sensing unit.

In addition, the touch sensing device further includes a processing unit in addition to the touch sensing component. In this specific embodiment, the sensor for sensing the electrical properties of the fluid can generate sensing signals according to the electrical properties, and the processing unit can receive the sensing signals and judge the touch status of the touch sensing device according to the sensing signals.

In a specific embodiment, the at least one sensing unit further includes a first conductive contact and a second conductive contact. The first conductive contact is disposed in the fluid and adjacent to the first substrate layer, and the second conductive contact is disposed in the fluid and adjacent to the second substrate layer. Wherein, the sensor senses the electrical characteristic of the fluid through the first conductive contact and the second conductive contact. In this embodiment, the electrical property is the equivalent impedance of the fluid. The first base material layer is elastic, and when an external force acts on the first base material layer, the first base material layer can be deformed according to the external force. The geometry of the fluid is changed by the influence of the fourth electric charge so that the first fluid part adheres to the first dielectric layer, and the second fluid part adheres to the second dielectric layer. Wherein the first fluid part and the second fluid part can change the traveling direction of an incident light source. Another aspect of the present invention is to provide a touch sensing component, including a first substrate layer, a second substrate layer, a driver and a sensor. The second substrate layer includes a dielectric layer and a conductive layer, and the first substrate layer and the second substrate layer define an accommodating space for containing a fluid, and the fluid contacts the dielectric layer and/or the first substrate. material layer; the driver is used to provide at least one first charge to the conductive layer, and to provide at least one second charge to the fluid, wherein the polarity of the first charge is opposite to the second charge; the sensor includes at least one sensing unit , is disposed on the dielectric layer, and one of the at least one sensing unit is in contact with the fluid to sense the electrical characteristic of the fluid. When the touch sensing element receives an external force and the external force exceeds an external force threshold, the first substrate layer presses the fluid, and the geometric shape of the fluid changes, resulting in a change in the electrical property of the fluid.

In a specific embodiment, the first substrate layer is made of a transparent material, and may also be made of a conductive material.

In a specific embodiment, the electrical property is an equivalent impedance of the fluid.

In a specific embodiment, the sensor includes a first conductive contact, a second conductive contact and a third conductive contact, and the distance between the first conductive contact and the second conductive contact is greater than the distance between the second conductive contact and the third conductive contact. The distance between the joints.

Another aspect of the present invention is to provide a touch sensing device using the electro-wetting effect, which can be used to sense the magnitude of external force on the touch sensing device.

According to a specific embodiment, the touch sensing device of the present invention includes a touch sensing component, and the touch sensing component further includes an accommodating space, a first substrate layer, a second substrate layer, a driver, and a sensor. The second substrate layer has a dielectric layer and a conductive layer. The first base material layer and the second base material layer can define an accommodating space, and the accommodating space is used for accommodating fluid. The driver can respectively provide the first charge and the second charge to the conductive layer and the fluid, wherein the charge polarities of the first charge and the second charge are opposite. The sensor includes at least one sensing unit disposed on the dielectric layer, and one of the at least one sensing unit is in contact with the fluid for sensing electrical characteristics of the fluid.

In this specific embodiment, when the touch sensing component is pressed against the first substrate layer by an external force and the external force exceeds an external force threshold, the first substrate layer will deform and press the fluid, so that the geometric shape of the fluid will change and its electrical characteristics will be changed. produce changes. The aforementioned changes in electrical characteristics can be sensed by the sensing unit.

In addition, the touch sensing device further includes a processing unit in addition to the touch sensing component. In this specific embodiment, the sensor for sensing the electrical properties of the fluid can generate sensing signals according to the electrical properties, and the processing unit can receive the sensing signals and judge the touch status of the touch sensing device according to the sensing signals.

In a specific embodiment, the first substrate layer is made of transparent material.

In a specific embodiment, the first substrate layer is made of conductive material.

In a specific embodiment, the electrical property is the equivalent impedance of the fluid.

In a specific embodiment, the sensor includes a first conductive contact, a second conductive contact and a third conductive contact, and the distance between the first conductive contact and the second conductive contact is greater than the distance between the second conductive contact and the first conductive contact. The distance between the three conductive contacts. The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.

Description of drawings

FIG. 1A is a schematic diagram illustrating a touch sensing device according to an embodiment of the present invention.

FIG. 1B is a schematic diagram illustrating a pointing unit contacting a touch sensing device according to an embodiment of the present invention.

FIG. 2A is a schematic diagram illustrating a touch sensing device according to an embodiment of the present invention.

FIG. 2B is a schematic diagram illustrating that the pointing unit contacts and applies an external force to the touch sensing device of FIG. 2A .

FIG. 2C is a schematic diagram illustrating a touch sensing device according to another embodiment of the present invention.

FIG. 2D is a schematic diagram illustrating that the pointing unit contacts and applies an external force to the touch sensing device of FIG. 2C .

FIG. 2E is a schematic diagram illustrating that the pointing unit contacts and applies an external force to the touch sensing device of FIG. 2C .

Explanation of main component symbols

1, 3: Touch sensing device 10, 30: Touch sensing components

12, 32: processing unit 100, 300: accommodation space

102, 302: the first substrate layer 1020: the first conductive layer

1022: first dielectric layer 104, 304: second substrate layer

1040: second conductive layer 1042: second dielectric layer

1000, 3000: fluid 106, 306: drive

108, 308: sensor

1080, 3080, 3082, 3084: sensing unit

140, 340: first charge 142, 342: second charge

144: third charge 2, 4: indicating unit

20: The fourth charge P1: The first fluid part

P2: Second fluid part 3040: Conductive layer

3042: Dielectric layer

Detailed ways

Please refer to FIG. 1A . FIG. 1A is a schematic diagram illustrating a touch sensing device 1 according to an embodiment of the present invention. As shown in FIG. 1A , the touch sensing device 1 includes a touch sensing component 10 and a processing unit 12 . The touch sensing component 10 further includes an accommodating space 100 , a first substrate layer 102 , a second substrate layer 104 , a driver 106 and a sensor 108 .

In this embodiment, the first substrate layer 102 includes a first conductive layer 1020 and a first dielectric layer 1022 ; the second substrate layer 104 includes a second conductive layer 1040 and a second dielectric layer 1042 . The first substrate layer 102 and the second substrate layer 104 define an accommodating space 100 , and the accommodating space 100 can accommodate a fluid 1000 , wherein the first dielectric layer 1022 and the second dielectric layer 1042 contact the fluid 1000 . Please note that in practice, side walls may be provided on the sides of the accommodating space to prevent fluid from leaking out of the accommodating space and causing damage to the touch sensing device. In addition, in this embodiment, the first substrate layer 102 and the second substrate layer 104 are made of transparent materials, and the fluid 1000 is a transparent and conductive fluid. However, in practice, the first substrate layer 102 and the second substrate layer may also be made of translucent or opaque materials, and the fluid 1000 may also be translucent or opaque.

The sensor 108 has a sensing unit 1080 to sense the electrical properties of the fluid 1000 and generate a sensing signal. In this specific embodiment, the sensing unit 1080 is respectively disposed on the first dielectric layer 1022 and the second dielectric layer 1042 However, in practice, the arrangement and quantity of the sensing units are determined according to the needs of users or designers, and are not limited to this specific embodiment.

Before the touch sensing device 1 operates, the driver 106 can provide at least one first charge 140 to the first conductive layer 1020, at least one second charge 142 to the second conductive layer 1040, and at least one third charge 144 to the second conductive layer 1040. Fluid 1000. Wherein, the first charge 140 and the second charge 142 are of positive polarity, and the third charge 144 is of negative polarity. In practice, the first charge 140 is the same polarity as the second charge 142 and the third charge 144 is opposite in polarity. Please note that the quantities of the first charges 140 , the second charges 142 and the third charges 144 provided by the driver do not have to be the same as those shown in Figure A in practical applications, depending on the needs of users or designers. In addition, in practice, the driver 106 may further include driving units disposed in the fluid to provide charges to the fluid, and these driving units may also be combined with the sensing unit to form a unit with composite functions.

Due to the electro-wetting effect, the fluid 1000 exhibits the geometric shape shown in FIG. 1A , and the geometric shape will change according to the change of the relative quantities of the first charge 140 , the second charge 142 and the third charge 144 .

When the indicating unit 2 is close to the first substrate layer 102 and the distance thereof is less than or equal to a threshold, the fourth charge 20 on the indicating unit 2 can change the amount of the first charge 140 . Please note that the threshold here is related to the material of the first substrate layer 104 . If the threshold value is zero, it means that the indicating unit 2 needs to contact the first base material layer 102 and change the first charge 140 through conduction; The substrate layer 102 changes the first charge 140 by induction. When the first charge 140 changes, the geometry of the fluid 1000 changes, resulting in changes in the electrical properties of the fluid 1000 . In this specific embodiment, the electrical characteristic of the fluid 1000 is the equivalent impedance of the fluid 1000 . However, in practice, the electrical properties of the fluid 1000 may also be other suitable properties.

According to another specific embodiment, the first base material layer 102 in FIG. 1A can be made of elastic material, and when the first base material layer 102 is subjected to an external force, it will deform to press the fluid 1000 . Therefore, when the indicating unit 2 contacts the first base material layer 102 , pressure is generated on the first base material layer 102 and the first base material layer 102 is deformed, and the geometrical shape of the fluid 1000 is changed, resulting in corresponding changes in its electrical properties.

The sensor 108 is used to sense electrical properties of the fluid 1000 . In this specific embodiment, when the electrical property of the fluid 1000 , that is, its equivalent impedance, changes, a sensing signal can be generated according to its electrical property. However, when the indication unit 2 is not close to the touch sensing device 1, the electrical properties of the fluid 1000 will still be slightly changed by external disturbances. Therefore, in practice, the sensing unit can be set to sense changes in electrical properties exceeding The sensing signal is generated to a certain extent to avoid noise. For example, as shown in FIG. 1B , the pointing unit 2 touches the touch sensing device 1 , causing the geometrical shape of the fluid 1000 to change to a first layer attached to the first dielectric layer 1022 and the second dielectric layer 1042 respectively. In the fluid part P1 and the second fluid part P2, the equivalent impedance sensed between the two sensing units 1080 is quite large, that is, the disconnected state. Therefore, the sensor 108 can selectively generate sensing signals or generate different sensing signals according to the connection state or disconnection state between the sensing units 1080 .

In practice, the touch sensing device 1 of the previous embodiment can also be used to sense contact pressure. For example, if the first base material layer 102 is an elastic material and first controls the geometric shape change of the fluid 1000 as shown in FIG. When the first base material layer 102 exceeds a certain level, the first fluid part P1 and the second fluid part P2 can contact each other, so that the electrical change sensed by the sensor 108 can determine the degree of deformation of the first base material layer 102, and then further calculate The pressure applied on the first substrate layer 102 .

In addition, the processing unit 12 can be used to receive the sensing signal generated by the sensor 108 and determine the touch state of the touch sensing device 1 according to the sensing signal. After the touch is completed, the driver 106 can restore the quantity of the first charge 140 , the second charge 142 and the third charge 144 , so as to restore the geometric shape and electrical characteristics of the fluid 1000 to the state before the touch.

In practice, the above touch sensing device may further include a plurality of touch sensing components. The sensors disposed on each touch-sensing component can respectively sense the touch state of each touch-sensing component, so the multi-point simultaneous touch function can be achieved.

In the touch process of the above-mentioned specific embodiments, the electro-wetting effect is increased due to external influences, and changes in the electrical characteristics of the fluid are sensed to determine the touch state. With the design of the touch sensing device itself, the open circuit/open circuit state can be used for touch operation, or the precision sensing unit can be used to measure the equivalent impedance caused by different geometric shapes of the fluid for touch operation. However, when the charge polarity of the indicating unit is different from the first charge of the touch sensing device, performing a touch will result in a reduction of the electro-wetting effect. In order to maintain effective touch sensing, in addition to using the above-mentioned precision sensing unit to measure the electrical characteristics of the fluid, various auxiliary designs can also be used.

For example, using a pointing unit with specific electrical properties (such as a touch sensor pen) to replace other pointing units (such as fingers) with unspecific electrical properties (such as a finger) for touch control, to ensure that the touch can cause enough to affect the original circuit state changes in the electrical properties of the fluid. In addition, an induction calibration area can also be set up for the surface of the indicating unit. This induction calibration area can measure the polarity and quantity of the charge on the surface of the indicating unit before performing the touch operation, and control the driver to provide the charge of the corresponding polarity to the surface according to the obtained result. Touch sensing device to ensure that the touch can cause changes in the electrical characteristics of the fluid that can affect the state of the original circuit.

On the other hand, when the light source is incident on the touch sensing device, the light source can pass through the touch sensing device due to the high light transmittance of the first substrate layer, the second substrate layer and the fluid. Therefore, the touch sensing device of the present invention can be used on a touch processing device, such as, but not limited to, a personal digital assistant or a mobile phone. In addition, since the change of the geometric shape of the fluid during touch can change the traveling direction of the light source, if the fluid still maintains the geometric shape of the touch after the pointing unit leaves the touch sensing device, the user can observe the light source in this part and other areas. The characteristics are different, so that the touch sensing device of the present invention can achieve the function of a handwriting tablet.

Please refer to FIG. 2A . FIG. 2A is a schematic diagram illustrating a touch sensing device 3 according to a specific embodiment of the present invention. As shown in FIG. 2A , the touch sensing device 3 includes a touch sensing component 30 and a processing unit 32 . The touch sensing component 30 further includes an accommodating space 300 , a first substrate layer 302 , a second substrate layer 304 , a driver 306 and a sensor 308 .

In this embodiment, the second substrate layer 304 includes a conductive layer 3040 and a dielectric layer 3042 . The first substrate layer 302 and the second substrate layer 304 define an accommodating space 300 , and the accommodating space 300 can accommodate the fluid 3000 , wherein the dielectric layer 3042 contacts the fluid 3000 . Please note that in practice, side walls may be provided on the sides of the accommodating space to prevent fluid from leaking out of the accommodating space and causing damage to the touch sensing device. Likewise, the first substrate layer 302 and the second substrate layer 304 are made of transparent materials, and the fluid 3000 is a transparent and conductive fluid.

The sensor 308 has a sensing unit 3080 to sense the electrical properties of the fluid 3000 and generate sensing signals. However, in practice, the arrangement and quantity of the sensing units are determined according to the needs of users or designers, and are not limited to this specific embodiment.

In this embodiment, the driver 306 can provide at least one first charge 340 to the conductive layer 3040 and provide at least one second charge 342 to the fluid 3000 . Through the electro-wetting effect, the fluid 3000 can exhibit the geometric shape shown in FIG. 2A . In addition, the driver 306 can change the geometric shape of the fluid 3000 by changing the quantity of the first charge 340 and the second charge 342 provided. Likewise, in practice, the driver may also include a driving unit disposed in the fluid to provide electric charges to the fluid.

The first base material layer 302 is made of soft material, and when an external force is applied to the first base material layer 302 , the first base material layer 302 can be deformed. Please refer to FIG. 2B . FIG. 2B is a schematic diagram illustrating the pointing unit 4 contacting and applying an external force to the touch sensing device 3 of FIG. 2A . As shown in FIG. 2B , the driver 306 provides the first charge 340 and the second charge 342 so that the fluid 3000 assumes the geometric shape as shown. When the external force applied by the indicating unit 4 exceeds an external force threshold value, the deformation generated by the first substrate layer 302 causes the sensing unit 3080 located on the first substrate layer 302 to contact the fluid 3000, so the sensor 308 senses that its circuit state is caused by The sense signal is generated by changing the open state to the open state. The processing unit 32 is configured to receive the sensing signal, and judge the touch state of the touch sensing device according to the sensing signal.

According to the material properties of the first base material layer 302, the relative relationship between the external force it receives and its deformation can be calculated. Therefore, based on the material properties of the first substrate layer 302, it can be deduced that when the processing unit 32 determines that the touch state changes (in this specific embodiment, the circuit state changes from the disconnected state to the connected state), the first substrate layer The material layer 302 is subjected to the magnitude of the external force of the indicating unit 4 . Furthermore, by controlling the geometric shape of the fluid 3000 through the driver 308, the external force threshold value of the external force in this embodiment can be indirectly controlled.

In practical applications, the first substrate layer can also be designed to have a structure of a conductive layer and a dielectric layer. The driver simultaneously provides charges corresponding to the conductive layer of the first substrate layer, the conductive layer of the second substrate layer, and the fluid, so that the fluid forms a dielectric layer attached to the dielectric layer of the first substrate layer and the dielectric layer of the second substrate layer respectively. Two fluid parts on the electrical layer. When the first substrate layer is pressed by the indicating unit, and the external force of the pressing reaches an external force threshold, the two fluid parts will contact each other so that the state of the circuit is changed from an open circuit state to an open circuit state, which is sensed by the sensing unit, thereby generating The sensing signal is sent to the processing unit.

Please refer to FIG. 2C, FIG. 2D and FIG. 2E together. FIG. 2C is a schematic diagram showing a touch sensing device 3 according to another embodiment of the present invention; FIG. 2E is a schematic diagram illustrating that the pointing unit 4 touches and applies external force to the touch sensing device 3 of FIG. 2C . As shown in FIG. 2C, the difference between this specific embodiment and the previous specific embodiment is that the sensing units 3080, 3082 and 3084 of the sensor of this specific embodiment are all arranged on the second substrate layer 304, and the remaining parts are the same as those of the previous specific embodiment. The above-mentioned specific embodiments are the same and will not be repeated here. Please note that for the sake of clarity, the sensors, drivers and processing units are not shown here. The amount of first charge 340 and second charge 342 provided by the driver causes fluid 3000 to assume the geometry shown.

In this embodiment, the distance from the sensing unit 3082 to the sensing unit 3080 is smaller than the distance from the sensing unit 3080 to the sensing unit 3084 . When the external force applied by the indicating unit 4 to the first base material layer 302 exceeds the first external force threshold, the first base material layer 302 will press the fluid 3000 and make the fluid 3000 contact the sensing unit 3082 , as shown in FIG. 2D . At this time, the sensor can sense that the state of the circuit between the sensing unit 3080 and the sensing unit 3082 has changed from the original disconnected state to the connected state, and then generate a sensing signal to the processing unit.

Furthermore, when the external force exerted by the indicating unit 4 exceeds the second external force threshold, the first substrate layer 302 will further press the fluid 3000 and make the fluid 3000 contact the sensing unit 3084 , as shown in FIG. 2E . At this time, the sensor can sense that the state of the circuit between the sensing unit 3080 and the sensing unit 3084 has changed from the original disconnected state to the connected state, and then generate a sensing signal to the processing unit.

In practice, a plurality of sensing units may be disposed on the second substrate layer, and the fluid contacts one of these sensing units (defined as the first sensing unit) and does not interact with the other sensing units (defined as the second sensing unit). Sensing units) are in contact with each other. In addition, each second sensing unit is separated from the first sensing unit by different distances. When the indicating unit touches and presses the first substrate layer, the fluid is pressed and may contact the second sensing unit, so that the state of the circuit between the first sensing unit and the second sensing unit changes from a disconnected state to a connected state. According to the number of the farthest second unit or the path state connected with the first sensing unit, the magnitude of the external force exerted by the indicating unit on the first base material layer can be judged.

As mentioned above, when the fluid is pressed and contacts a second sensing unit to cause a passage state, it means that the external force exerted by the indicating unit exceeds the first external force threshold or the second external force threshold corresponding to the second sensing unit , so according to the number of the farthest second unit conducting with the first sensing unit or the channel state, it can be judged that the external force is between two different external force thresholds, so as to estimate the magnitude of the external force. Please note that the external force threshold corresponding to the second sensing unit can be determined according to parameters such as the material properties of the first substrate layer, the distance between the first sensing unit and the second sensing unit, the properties of the fluid, and the volume of the fluid. Decide.

Compared with the prior art, the touch sensing device and the touch sensing component of the present invention change the original charge state of the touch sensing device and the touch sensing component by the charge state on the contact object, and use the electro-humidity effect to cause the The geometric shape and electrical characteristics of the fluid change, and then the touch state is judged by measuring the electrical characteristics of the fluid. Because transparent materials can be used for their structures, the touch sensing device and the touch sensing component itself have high light transmittance. In addition, the touch sensing device may include multiple touch sensing components to realize multi-touch functions. On the other hand, the touch sensing device can also measure the function of the external force applied to the touch sensing component by giving different charge states to the touch sensing component.

Through the above detailed description of the preferred embodiments, it is hoped that the characteristics and spirit of the present invention can be described more clearly, and the scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various changes and equivalent arrangements within the scope of the claimed patent scope of the present invention. Therefore, the scope of the claimed scope of the present invention should be interpreted in the broadest way based on the above description, so as to cover all possible changes and equivalent arrangements.

Claims (16)

1. A touch sensing component, comprising: The first substrate layer includes a first dielectric layer and a first conductive layer; The second substrate layer includes a second dielectric layer and a second conductive layer, and the first substrate layer and the second substrate layer define an accommodating space for containing a fluid, and the fluid contacts the first a dielectric layer and/or said second dielectric layer; a driver for providing at least one first charge to the first conductive layer, at least one second charge to the second conductive layer, and at least one third charge to the fluid, wherein the first charge is of the same polarity as the second charge and opposite to the third charge; and A sensor comprising at least two sensing units arranged in the accommodating space to sense the electrical property of the fluid, the electrical property being the equivalent impedance of the fluid, wherein the at least two sensing units The measuring unit further comprises: a first conductive contact disposed in the fluid and adjacent to the first substrate layer; and a second conductive contact disposed in the fluid and adjacent to the second substrate layer; wherein, The sensor senses the electrical characteristic of the fluid through the first conductive contact and the second conductive contact, and the electrical characteristic is an equivalent impedance of the fluid; Wherein these first charges, these second charges and these third charges determine the geometric shape of the fluid; wherein when the distance between the indication unit with at least one fourth charge and the first substrate layer is less than a valve When the value is high, the fourth charges change the first charges, thereby changing the geometric shape of the fluid, resulting in a change in the electrical properties of the fluid. 2. The touch sensing component according to claim 1, wherein the first substrate layer has elasticity, and when an external force acts on the first substrate layer, the first substrate layer can The above-mentioned external force produces deformation. 3. A touch sensing device for a touch processing device, the touch sensing device comprising: The first substrate layer includes a first dielectric layer and a first conductive layer; The second substrate layer includes a second dielectric layer and a second conductive layer, and the first substrate layer and the second substrate layer define an accommodating space for containing fluid, the fluid contacts the first dielectric layer and/or the second dielectric layer; a driver for providing at least one first charge to the first conductive layer, at least one second charge to the second conductive layer, and at least one third charge to the fluid, wherein the first charge is of the same polarity as the second charge and opposite to the third charge; A sensor comprising at least two sensing units arranged in the accommodating space to sense the electrical property of the fluid, the electrical property being the equivalent impedance of the fluid, wherein the at least two sensing units The measuring unit further comprises: a first conductive contact disposed in the fluid and adjacent to the first substrate layer; and a second conductive contact disposed in the fluid and adjacent to the second substrate layer; wherein, The sensor senses the electrical characteristic of the fluid through the first conductive contact and the second conductive contact, the electrical characteristic being an equivalent impedance of the fluid; and a processing unit, configured to receive a sensing signal, and judge the touch state of the touch sensing device according to the sensing signal; Wherein these first charges, these second charges and these third charges determine the geometric shape of the fluid; wherein when the distance between the indication unit with at least one fourth charge and the first substrate layer is less than a valve When the value is high, the fourth charges change the first charges, thereby changing the geometric shape of the fluid, resulting in a change in the electrical properties of the fluid. 4. The touch sensing device according to claim 3, wherein the first substrate layer has elasticity, and when an external force acts on the first substrate layer, the first substrate layer can The above-mentioned external force produces deformation. 5. The touch sensing device according to claim 3, wherein the geometrical shape of the fluid is changed by the influence of the fourth electric charge so that the first fluid partially adheres to the first dielectric layer, and the second fluid Partially adhere to the second dielectric layer. 6 . The touch sensing device according to claim 5 , wherein the first fluid portion and the second fluid portion can change a traveling direction of an incident light source. 7. The touch sensing device according to claim 3, wherein the touch processing device is a personal digital assistant. 8. The touch sensing device according to claim 3, wherein the touch processing device is a mobile phone. 9. A touch sensing component, comprising: a first substrate layer; The second substrate layer, the second substrate layer includes a dielectric layer and a conductive layer, and the first substrate layer and the second substrate layer define an accommodating space for containing a fluid, the fluid contacting the dielectric layer; a driver for providing at least one first charge to the conductive layer and at least one second charge to the fluid, wherein the first charge is opposite in polarity to the second charge; and A sensor comprising at least three sensing units disposed on the dielectric layer, and one of the at least three sensing units contacts the fluid to sense electrical properties of the fluid, the The electrical characteristic is the equivalent impedance of the fluid, wherein the sensor includes a first conductive contact, a second conductive contact and a third conductive contact, and the distance between the first conductive contact and the second conductive contact is greater than the distance between the second conductive contact and the third conductive contact; Wherein, when the touch sensing component receives an external force and the external force exceeds an external force threshold, the first substrate layer presses the fluid, and the geometric shape of the fluid changes, resulting in the The electrical characteristics change. 10. The touch sensing component according to claim 9, wherein the first substrate layer is made of a transparent material. 11. The touch sensing component according to claim 9, wherein the first substrate layer is made of conductive material. 12. A touch sensing device for a touch processing device, the touch sensing device comprising: a first substrate layer; The second substrate layer, the second substrate layer includes a dielectric layer and a conductive layer, and the first substrate layer and the second substrate layer define an accommodating space for containing a fluid, the fluid contacting the dielectric layer; a driver for providing at least one first charge to the conductive layer and at least one second charge to the fluid, wherein the first charge is opposite in polarity to the second charge; A sensor comprising at least three sensing units disposed on the dielectric layer, and one of the at least three sensing units contacts the fluid to sense electrical properties of the fluid, the The electrical characteristic is the equivalent impedance of the fluid, wherein the sensor includes a first conductive contact, a second conductive contact and a third conductive contact, and the distance between the first conductive contact and the second conductive contact is greater than the distance between the second conductive contact and the third conductive contact; and a processing unit, configured to receive the sensing signal, and judge the touch state of the touch sensing device according to the sensing signal; Wherein, when the touch sensing component receives an external force and the external force exceeds an external force threshold, the first substrate layer presses the fluid, and the geometric shape of the fluid changes, resulting in the The electrical characteristics change. 13. The touch sensing device according to claim 12, wherein the first substrate layer is made of a transparent material. 14. The touch sensing device according to claim 12, wherein the first substrate layer is made of conductive material. 15. The touch sensing device according to claim 12, wherein the touch processing device is a personal digital assistant. 16. The touch sensing device according to claim 12, wherein the touch processing device is a mobile phone.

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