Touch sensing device
By introducing dummy electrodes into the touch sensing device and optimizing the configuration of sensing and driving electrodes, the problems of insufficient mutual capacitance efficiency and sensing quantity are solved, the signal-to-noise ratio and mutual capacitance sensing quantity are improved, and better performance is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ILI TECHNOLOGY CORPORATION
- Filing Date
- 2025-12-16
- Publication Date
- 2026-04-14
AI Technical Summary
Existing touch sensing devices have room for improvement in terms of mutual capacitance efficiency and sensing quantity to meet modern needs.
Multiple dummy electrodes are introduced into the touch sensing device and placed between the sensing electrode and the driving electrode to form an electrode configuration with a specific width and shape to improve the signal-to-noise ratio (SNR) and mutual capacitance inductance (∆Cm).
By optimizing the electrode configuration, the signal-to-noise ratio (SNR) and mutual capacitance induction (∆Cm) of the touch sensor were improved, thereby enhancing the device's performance.
Smart Images
Figure CN121857992A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to a sensing device for an electronic device, and more particularly to a touch sensing device for an electronic device. Background Technology
[0002] Touchscreen electronic devices allow users to control them by touching or pressing. Generally, a touchscreen electronic device includes a driving unit, a detection circuit, and multiple intersecting driving lines and sensing lines. Mutual capacitance (Cm) is located at the intersections of the driving and sensing lines. The driving unit sequentially outputs driving voltages to the driving lines, causing the corresponding capacitors to generate induced capacitance. The detection circuit detects the induced capacitance on each sensing line. When a user touches or presses a location, the induced capacitance of the capacitor corresponding to the touched location changes. The detection circuit then detects this change in capacitance, thus determining the location of the touch.
[0003] However, as technology continues to develop, those skilled in the art continue to improve the performance of touch sensing devices (such as mutual capacitance efficiency or mutual capacitance sensing) to meet current or future needs. Summary of the Invention
[0004] This disclosure provides a touch sensing device that can help improve the performance of touch sensing devices.
[0005] One embodiment of this disclosure provides a touch sensing device including a plurality of sensing units, each sensing unit including a sensing electrode, a plurality of driving electrodes, and a plurality of dummy electrodes. The sensing electrodes include first sides facing each other in a first direction and have a first width that varies along the first direction in a second direction perpendicular to the first direction. The driving electrodes are electrically connected to each other and are respectively disposed on opposite sides of the sensing electrodes in the second direction, wherein the plurality of driving electrodes are separated from the sensing electrodes, and each driving electrode has a second width that varies along the second direction in the first direction. The plurality of dummy electrodes are disposed between the sensing electrodes and the plurality of driving electrodes and are separated from both the sensing electrodes and the plurality of driving electrodes.
[0006] In some embodiments, the first width has a minimum value at the center of the sensing unit in the first direction and the second direction, and the first width has a maximum value at the first side.
[0007] In some embodiments, each driving electrode includes a second side, a plurality of second sides being opposite to each other in a second direction, and the second width having a minimum value at the center closest to the sensing unit, while the second width has a maximum value on the second side.
[0008] In some embodiments, the first side has a first center in the second direction, the second side has a second center in the first direction, and in the third direction from the first center to the second center, the ratio of the width of the sensing electrode to the width of the driving electrode is between 4:6 and 6:4.
[0009] In some embodiments, the shortest distance from the first center to the second center is between 2000 µm and 3600 µm.
[0010] In some embodiments, the width of the dummy electrode in the third direction is between 1 µm and 700 µm.
[0011] In some embodiments, each dummy electrode comprises a plurality of line patterns spaced apart from each other.
[0012] Another embodiment of this disclosure provides a touch sensing device including a plurality of sensing units, each sensing unit including a sensing electrode, a plurality of driving electrodes, and a plurality of dummy electrodes. The sensing electrode includes first sides facing each other in a first direction, wherein the first sides have a first center in a second direction perpendicular to the first direction. The plurality of driving electrodes are electrically connected to each other and are respectively disposed on opposite sides of the sensing electrode in the second direction, wherein the plurality of driving electrodes are separated from the sensing electrode and each includes a second side, and the plurality of second sides are facing each other in the second direction and the second sides have a second center in the first direction. The plurality of dummy electrodes are disposed between the sensing electrode and the plurality of driving electrodes and are separated from both the sensing electrode and the plurality of driving electrodes.
[0013] In some embodiments, in the third direction from the first center to the second center, the ratio of the width of the sensing electrode to the width of the driving electrode is between 4:6 and 6:4.
[0014] In some embodiments, each dummy electrode includes a line pattern. The line pattern includes a first line segment extending upward in a third direction and a second line segment extending in a fourth direction perpendicular to the third direction, wherein the first line segment and the second line segment are connected to each other at the center of the sensing unit in the first and second directions, closest to the sensing unit.
[0015] In some embodiments, each dummy electrode includes a plurality of rectangular patterns. The plurality of rectangular patterns are respectively connected to the first line segment and the second line segment and are respectively disposed at opposite corners of the sensing unit in a first direction.
[0016] In some embodiments, the first line segment and the second line segment are composed of a plurality of sub-line segments spaced apart from each other.
[0017] In some embodiments, each dummy electrode includes a first pattern and a second pattern. The first pattern is disposed near the center of the sensing unit and surrounded by the driving electrode. The second pattern is disposed near the center of the sensing unit and surrounded by the sensing electrode.
[0018] Based on the above, in the aforementioned touch sensing device, multiple dummy electrodes are disposed between the sensing electrode and the multiple driving electrodes and are separated from both the sensing electrode and the multiple driving electrodes. This helps to improve the signal-to-noise ratio (SNR) of the touch signal, enabling the touch sensing device to have good performance. Attached Figure Description
[0019] Figure 1 This is a top view schematic diagram of the touch sensing device according to the first embodiment of this disclosure;
[0020] Figure 2 This is a top view schematic diagram of a touch sensing device according to a second embodiment of the present disclosure;
[0021] Figure 3 This is a top view schematic diagram of a touch sensing device according to a third embodiment of the present disclosure;
[0022] Figure 4 This is a top view schematic diagram of a touch sensing device according to the fourth embodiment of this disclosure;
[0023] Figure 5 This is a top view schematic diagram of a touch sensing device according to the fifth embodiment of this disclosure;
[0024] Figure 6 This is a top view schematic diagram of a touch sensing device according to the sixth embodiment of this disclosure;
[0025] Figure 7 This is a top view schematic diagram of a touch sensing device according to the seventh embodiment of this disclosure;
[0026] Figure 8 This is a top view schematic diagram of a touch sensing device according to the eighth embodiment of this disclosure. Detailed Implementation
[0027] The present disclosure is described more fully with reference to the accompanying drawings of this embodiment. However, the present disclosure may be embodied in various different forms and should not be limited to the embodiments described herein. The thickness of layers and regions in the drawings is enlarged for clarity. The same or similar reference numerals denote the same or similar elements, which will not be described again in the following paragraphs.
[0028] It should be understood that when a component is referred to as being "on" or "connected to" another component, it can mean that the component is directly on or directly connected to the other component without any intermediate component in between, or it can mean that there is an intermediate component between the component and the other component. However, if a component is referred to as being "directly on" or "directly connected to" another component, then there is no intermediate component between the component and the other component. The term "connection" as used herein can refer to a physical connection and / or an electrical connection.
[0029] As used herein, “about,” “approximately,” or “substantially” includes the value mentioned and the average of a particular value within an acceptable range of deviations that can be determined by one of ordinary skill in the art, taking into account the measurement under discussion and a particular number of errors associated with the measurement (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations of the value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, the use of “about,” “approximately,” or “substantially” herein may be chosen based on the optical, etched, or other properties to select a more acceptable range of deviations or standard deviations, and may not require a single standard deviation to apply to all properties.
[0030] The terminology used herein is for illustrative purposes only and is not intended to limit the scope of this disclosure. In this context, the singular form includes the plural form unless the context otherwise requires.
[0031] Figure 1 This is a top view schematic diagram of a touch sensing device according to the first embodiment of this disclosure. Figure 2 This is a top view schematic diagram of a touch sensing device according to a second embodiment of the present disclosure.
[0032] Please refer to Figure 1 The touch sensing device may include multiple sensing units SU1, and each sensing unit SU1 includes a sensing electrode RX1, multiple driving electrodes TX1 and multiple dummy electrodes DP1.
[0033] The sensing electrode RX1 includes first sides S1 that are opposite each other in the first direction D1 and has a first width that varies along the first direction D1 in the second direction D2 that is perpendicular to the first direction D1. In this embodiment, the first width has a minimum value at CP1 at the center of the sensing unit SU1 in the first direction D1 and the second direction D2, and the first width has a maximum value at the first side S1.
[0034] In some embodiments, the material of the sensing electrode RX1 may include a metal oxide. For example, the metal oxide may be indium tin oxide (ITO), indium zinc oxide (IZO), aluminum tin oxide (ATO), aluminum zinc oxide (AZO), indium gallium zinc oxide (IGZO), other suitable oxides, or combinations thereof, but is not limited thereto. In other embodiments, the material of the sensing electrode RX1 may also be nano silver paste. In other embodiments, the material of the sensing electrode RX1 may also be a metal, such as a metal pattern with a light-transmitting design (e.g., light-transmitting holes) to allow light to pass through the sensing electrode RX1.
[0035] Multiple driving electrodes TX1 are electrically connected to each other and are respectively disposed on opposite sides of the sensing electrode RX1 in the second direction D2. The driving electrodes TX1 are separated from the sensing electrode RX1, and each driving electrode TX1 has a second width that varies along the second direction D2 in the first direction D1. In this embodiment, each driving electrode TX1 includes a second side S2. The multiple second sides S2 are opposite to each other in the second direction D2, and the second width has a minimum value at CP1 closest to the center of the sensing unit SU1, while the second width has a maximum value at the second side S2.
[0036] In some embodiments, the material of the driving electrode TX1 may include a metal oxide. For example, the metal oxide may be ITO, IZO, ATO, AZO, IGZO, other suitable oxides, or combinations thereof, but is not limited thereto. In other embodiments, the material of the driving electrode TX1 may also be nano-silver paste. In other embodiments, the material of the driving electrode TX1 may also be a metal, such as a metal pattern with a light-transmitting design (e.g., light-transmitting holes) to allow light to pass through the driving electrode TX1. The driving electrode TX1 and the sensing electrode RX1 may be made of the same or different materials.
[0037] In this embodiment, the driving electrode TX1 and the sensing electrode RX1 can be disposed at the same horizontal level, and the driving electrode TX1 can be electrically connected by a line disposed on a different layer from the driving electrode TX1. In some embodiments, the driving unit (not shown) can output a driving voltage to the driving electrode TX1, causing the corresponding capacitor to generate induced capacitance, and the detection circuit (not shown) can detect the induced capacitance on the sensing electrode RX1, so that the touch position can be determined by detecting the change in induced capacitance.
[0038] The dummy electrode DP1 is disposed between the sensing electrode RX1 and the plurality of driving electrodes TX1, and is separated from both the sensing electrode RX1 and the plurality of driving electrodes TX1. This helps to improve the signal-to-noise ratio (SNR) of the touch signal, resulting in better performance of the touch sensing device. In some embodiments, the dummy electrode DP1 may be electrically floating. In some embodiments, the dummy electrode DP1 may be electrically isolated from the sensing electrode RX1 and / or the driving electrodes TX1.
[0039] In this embodiment, the first side S1 of the sensing electrode RX1 has a first center C1 in the second direction D2, and the second side S2 of the driving electrode TX1 has a second center C2 in the first direction D1. In the third direction D3 from the first center C1 to the second center C2, the ratio of the width of the sensing electrode RX1 (e.g., distance d1) to the width of the driving electrode TX1 (e.g., distance d2) is between 4:6 and 6:4, which can further improve the mutual capacitance sensing amount (i.e., ∆Cm) and further improve the maximum gap margin (LGM). In some embodiments, the ratio of the width of the sensing electrode RX1 (e.g., distance d1) to the width of the driving electrode TX1 (e.g., distance d2) can be 5:5. For example, when divided by the X-axis and Y-axis passing through the center CP1 of the sensing unit SU1, the areas of the sensing electrode RX1 and the driving electrode TX1 shown in the first quadrant, second quadrant, third quadrant, and / or fourth quadrant are approximately the same.
[0040] In this embodiment, the width (e.g., distance d3) of the dummy electrode DP1 in the third direction D3 is between 1 µm and 700 µm. This effectively reduces the mutual capacitance background value (Cmbg) by sacrificing a small amount of mutual capacitance inductance (i.e., ∆Cm), thus contributing to a further improvement in the signal-to-noise ratio (SNR). In other embodiments, the width (e.g., distance d3) of the dummy electrode DP1 in the third direction D3 can be between 1 µm and 300 µm. In some alternative embodiments, the width (e.g., distance d3) of the dummy electrode DP1 in the third direction D3 can be between 50 µm and 100 µm.
[0041] In some embodiments, the shortest distance from the first center C1 to the second center C2 is between 2000 µm and 3600 µm, which can help improve the performance of the touch sensing device, for example, by increasing the ratio of mutual capacitance sensing (∆Cm) to mutual capacitance background (Cmbg), thus contributing to an improved signal-to-noise ratio (SNR). In other embodiments, the shortest distance from the first center C1 to the second center C2 is between 2800 µm and 3050 µm. In some alternative embodiments, the shortest distance from the first center C1 to the second center C2 may be between 2820 µm and 2970 µm.
[0042] In this embodiment, each dummy electrode DP1 may include a line pattern, wherein the line pattern may include a first line segment extending in a third direction D3 and a second line segment extending in a fourth direction D4 perpendicular to the third direction D3, wherein the first line segment and the second line segment are connected to each other at the center CP1 closest to the sensing unit SU1. In some embodiments, such as Figure 2 The sensing unit SU1' shown has a first line segment and a second line segment in each dummy electrode DP1' that are spaced apart from each other. In other words, each dummy electrode DP1' may include multiple line patterns that are spaced apart from each other.
[0043] Figure 3 This is a top view schematic diagram of a touch sensing device according to a third embodiment of the present disclosure. Figure 4 This is a top view schematic diagram of a touch sensing device according to the fourth embodiment of this disclosure.
[0044] Figure 3 The sensor unit SU2 shown is similar to Figure 1 The main difference between the sensing unit SU1 shown is that the dummy electrode DP2 of the sensing unit SU2 is different from the dummy electrode DP1 of the sensing unit SU1. The other identical or similar components are represented by the same or similar element symbols, and will not be repeated here.
[0045] Please refer to Figure 3 Each sensing unit SU2 may include a sensing electrode RX2, multiple driving electrodes TX2, and multiple dummy electrodes DP2. In this embodiment, each dummy electrode DP2 may include a line pattern DP2a and multiple rectangular patterns DP2b. The line pattern DP2a may include a first line segment extending in a third direction D3 and a second line segment extending in a fourth direction D4 perpendicular to the third direction D3, wherein the first line segment and the second line segment may be located at the center closest to the sensing unit SU2 in the first direction D1 and the second direction D2 (e.g., Figure 1The rectangular pattern DP2b is connected to the first and second line segments of the line pattern DP2a, respectively, and is respectively positioned at opposite corners of the sensing unit SU2 in the first direction D1. This effectively reduces the mutual capacitance background value (Cmbg) by sacrificing a small amount of mutual capacitance sensing (i.e., ∆Cm), thereby helping to further improve the signal-to-noise ratio (SNR) of the touch sensing device. On the other hand, the rectangular pattern DP2b can be connected to the line pattern DP2a by means of... Figure 3 (or Figure 4 The configuration shown is used to effectively reduce the background capacitance value (Csbg) by sacrificing a small amount of mutual capacitance inductance (i.e., ΔCm).
[0046] In some embodiments, such as Figure 4 The first and second segments of the line pattern DP2a' of the dummy electrode DP2' shown in the sensing unit SU2' can be composed of multiple secondary segments spaced apart from each other. In this embodiment, the multiple secondary segments can be spaced apart from each other.
[0047] Figure 5 This is a top view schematic diagram of a touch sensing device according to the fifth embodiment of this disclosure. Figure 6 This is a top view schematic diagram of a touch sensing device according to the sixth embodiment of this disclosure.
[0048] Figure 5 The sensor unit SU3 shown is similar to Figure 3 The main difference between the sensing unit SU2 shown is that the dummy electrode DP3 of the sensing unit SU3 is different from the dummy electrode DP2 of the sensing unit SU2. The other identical or similar components are represented by the same or similar element symbols, and will not be repeated here.
[0049] Please refer to Figure 5 Each sensing unit SU3 may include a sensing electrode RX3, multiple driving electrodes TX3, and multiple dummy electrodes DP3. In this embodiment, each dummy electrode DP3 may include a line pattern DP3a, multiple rectangular patterns DP3b, a first pattern DP3c1, and a second pattern DP3c2. The line pattern DP3a may include a first line segment extending in a third direction D3 and a second line segment extending in a fourth direction D4 perpendicular to the third direction D3, wherein the first line segment and the second line segment may be located at the center closest to the sensing unit SU3 in the first direction D1 and the second direction D2 (e.g., Figure 1The rectangular pattern DP3b is connected to the first and second line segments of the line pattern DP3a, respectively, and is respectively positioned at opposite corners of the sensing unit SU3 in the first direction D1. This effectively reduces the mutual capacitance background value (Cmbg) by sacrificing a small amount of mutual capacitance sensing (i.e., ∆Cm), thereby helping to further improve the signal-to-noise ratio (SNR) of the touch sensing device. On the other hand, the rectangular pattern DP3b can be connected to the line pattern DP3a by means of... Figure 5 (or Figure 6 The configuration shown is used to effectively reduce the background capacitance background value (Csbg) by sacrificing a small amount of mutual capacitance induction (i.e., ∆Cm). In this embodiment, the first pattern DP3c1 is located near the center of the sensing unit SU3 (e.g., Figure 1 The central CP1 shown is positioned and surrounded by the driving electrode TX3, and the second pattern DP3c2 is located near the center of the sensing unit SU3 (as shown). Figure 1 The central CP1 shown is positioned and surrounded by the sensing electrode RX3. This further reduces the decrease in mutual capacitance sensing (i.e., ∆Cm) while significantly reducing the mutual capacitance background value (Cmbg), thereby contributing to further improvement in the signal-to-noise ratio (SNR) of the touch sensing device. On the other hand, the first pattern DP3c1 and the second pattern DP3c2 can be configured as follows: Figure 5 (or Figure 6 The configuration shown is used to effectively reduce the background capacitance value (Csbg) by sacrificing a small amount of mutual capacitance inductance (i.e., ∆Cm).
[0050] In some embodiments, such as Figure 6 The first and second segments of the line pattern DP3a' of the dummy electrode DP3' shown in the sensing unit SU3' can be composed of multiple secondary segments spaced apart from each other. In this embodiment, the multiple secondary segments can be spaced apart from each other.
[0051] Figure 7 This is a top view schematic diagram of a touch sensing device according to the seventh embodiment of this disclosure. Figure 8 This is a top view schematic diagram of a touch sensing device according to the eighth embodiment of this disclosure.
[0052] Please refer to Figure 7 Each sensing unit SU4 may include a sensing electrode RX4, multiple driving electrodes TX4, and multiple dummy electrodes DP4. In this embodiment, each dummy electrode DP4 may include a line pattern DP4a, a first pattern DP4b1, and a second pattern DP4b2. The line pattern DP4a may include a first line segment extending in a third direction D3 and a second line segment extending in a fourth direction D4 perpendicular to the third direction D3, wherein the first line segment and the second line segment may be located at the center closest to the sensing unit SU4 in the first direction D1 and the second direction D2 (e.g., Figure 1 The center of the pattern CP1 shown is connected to each other. The first pattern DP4b1 is located near the center of the sensing unit SU4 (as shown in the image). Figure 1 The central CP1 shown is positioned and surrounded by the driving electrode TX4, and the second pattern DP4b2 is located near the center of the sensing unit SU4 (as shown). Figure 1 The central CP1 shown is positioned and surrounded by the sensing electrode RX4. This further reduces the decrease in mutual capacitance sensing (i.e., ∆Cm) while significantly reducing the mutual capacitance background value (Cmbg), thereby contributing to further improvement in the signal-to-noise ratio (SNR) of the touch sensing device. On the other hand, the first pattern DP4b1 and the second pattern DP4b2 can be configured as follows: Figure 7 (or Figure 8 The configuration shown is used to effectively reduce the background capacitance value (Csbg) by sacrificing a small amount of mutual capacitance inductance (i.e., ΔCm).
[0053] In some embodiments, such as Figure 8 The first and second segments of the line pattern DP4a' of the dummy electrode DP4' shown in the sensing unit SU4' can be composed of multiple secondary segments spaced apart from each other. In this embodiment, the multiple secondary segments can be spaced apart from each other.
[0054] In summary, in the touch sensing device of the above embodiments, multiple dummy electrodes are disposed between the sensing electrode and the multiple driving electrodes and are separated from the sensing electrode and the multiple driving electrodes. This can help improve the mutual capacitance sensing amount, or effectively reduce the mutual capacitance background value (Cmbg) by sacrificing a small amount of mutual capacitance sensing amount (i.e., ∆Cm), thereby improving the signal-to-noise ratio of the touch signal and enabling the touch sensing device to have good performance.
[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure.
Claims
1. A touch sensing device, characterized in that, It includes multiple sensing units, and each of the sensing units includes: The sensing electrode includes first sides that are opposite each other in a first direction and has a first width that varies along the first direction in a second direction perpendicular to the first direction; A plurality of driving electrodes, electrically connected to each other and respectively disposed on opposite sides of the sensing electrode in the second direction, wherein the plurality of driving electrodes are separated from the sensing electrode, and each driving electrode has a second width that varies along the second direction in the first direction; and Multiple dummy electrodes are disposed between the sensing electrode and the multiple driving electrodes and are separated from the sensing electrode and the multiple driving electrodes.
2. The touch sensing device according to claim 1, characterized in that, The first width has a minimum value at the center of the sensing unit in the first direction and the second direction, and the first width has a maximum value at the first side.
3. The touch sensing device according to claim 2, characterized in that, Each of the driving electrodes includes a second side, a plurality of second sides being opposite to each other in the second direction, and the second width having a minimum value at the center closest to the sensing unit, and the second width having a maximum value at the second side.
4. The touch sensing device according to claim 3, characterized in that, The first side has a first center in the second direction, and the second side has a second center in the first direction. In the third direction from the first center to the second center, the ratio of the width of the sensing electrode to the width of the driving electrode is between 4:6 and 6:
4.
5. The touch sensing device according to claim 4, characterized in that, The shortest distance from the first center to the second center is between 2000 µm and 3600 µm.
6. The touch sensing device according to claim 4, characterized in that, The width of the dummy electrode in the third direction is between 1 µm and 700 µm.
7. The touch sensing device according to claim 4, characterized in that, Each of the dummy electrodes comprises multiple line patterns spaced apart from each other.
8. A touch sensing device, characterized in that, It includes multiple sensing units, and each of the sensing units includes: The sensing electrode includes first sides facing each other in a first direction, wherein the first sides have a first center in a second direction perpendicular to the first direction; A plurality of driving electrodes, electrically connected to each other and respectively disposed on opposite sides of the sensing electrode in the second direction, wherein the plurality of driving electrodes are separated from the sensing electrode and each includes a second side, and the plurality of second sides are opposite to each other in the second direction and the second side has a second center in the first direction; and Multiple dummy electrodes are disposed between the sensing electrode and the multiple driving electrodes and are separated from the sensing electrode and the multiple driving electrodes.
9. The touch sensing device according to claim 8, characterized in that, In a third direction from the first center to the second center, the ratio of the width of the sensing electrode to the width of the driving electrode is between 4:6 and 6:
4.
10. The touch sensing device according to claim 9, characterized in that, Each of the aforementioned dummy electrodes includes: The line pattern includes a first line segment extending upward in the third direction and a second line segment extending in a fourth direction perpendicular to the third direction, wherein the first line segment and the second line segment are connected to each other at the center of the sensing unit in the first direction and the second direction, respectively.
11. The touch sensing device according to claim 10, characterized in that, Each of the aforementioned dummy electrodes includes: Multiple rectangular patterns are respectively connected to the first line segment and the second line segment and are respectively disposed at opposite corners of the sensing unit in the first direction.
12. The touch sensing device according to claim 10, characterized in that, The first line segment and the second line segment are composed of multiple sub-line segments spaced apart from each other.
13. The touch sensing device according to claim 10, characterized in that, Each of the aforementioned dummy electrodes includes: A first pattern is disposed near the center of the sensing unit and surrounded by the driving electrode; and The second pattern is disposed near the center of the sensing unit and surrounded by the sensing electrode.