Touch panel having compensation touch sensor pattern

Abstract

A touch panel having a compensation touch sensor pattern and a compensation driving method thereof are disclosed. The touch panel includes: a plurality of touch sensors arranged in a matrix of a plurality of rows and a plurality of columns; a plurality of upper compensation touch sensors each disposed to be spaced apart from a corresponding touch sensor located in an uppermost row among the plurality of touch sensors; and a plurality of lower compensation touch sensors each disposed to be spaced apart from a corresponding touch sensor located in a lowermost row among the plurality of touch sensors. A touch panel having a compensation touch sensor pattern and a compensation driving method thereof may improve touch sensitivity of an uppermost touch sensor and a lowermost touch sensor of a touch sensor array in a matrix form by employing a compensation touch sensor.

Description

Technical Field

[0001] Embodiments of this disclosure relate to a touch panel having a compensated touch sensor pattern and a compensation driving method thereof. Background Technology

[0002] Figure 1 This is a plan view of a typical single-layer touch panel 100, which includes touch sensors arranged in multiple rows and columns.

[0003] Touch sensors arranged in multiple rows and columns have different touch sensitivity characteristics depending on their size and position. This is because, depending on the size and position of the touch sensor, each touch sensor contains different resistive and capacitive components.

[0004] Reference Figure 1 Because of the line <00> The touch sensor 110 was not previously equipped with an adjacent touch sensor, therefore when the row <00> When the touch sensor is activated for touch sensing, it only applies to rows. <00> Touch sensor and line <01> Inter-sensor capacitance is formed between the touch sensors. Here, inter-sensor capacitance refers to the capacitance formed between adjacent touch sensors when a predetermined voltage is applied to one of the touch sensors.

[0005] On the other hand, when the industry <01> When the touch sensor 110 is activated for touch sensing, it not only in the row <01> The touch sensor 110 is set in the row <01> Previous lines <00> The touch sensors are also in line <01> The touch sensor 110 is set in the row <01> The following lines <02> Inter-sensor capacitance is formed between the touch sensors.

[0006] Therefore, compared to touch sensors in other rows, row <00> Touch sensors involve small capacitance in touch sensing. As the capacitance between sensors decreases, the touch sensitivity also decreases.

[0007] Similar problems occurred Figure 1 of rows <09> In the touch sensor.

[0008] Specifically, <00> The touch sensor [00,00] and row <09> The touch sensor [07,09] in the row involves a smaller capacitance in touch sensing compared to other touch sensors in the corresponding row. This is because in the row... <00> There is no touch sensor to the left of [00,00] in the row, and <09> There is no touch sensor to the right of [07,09].

[0009] The reduction in capacitance between touch sensors leads to a loss of touch sensitivity and a deterioration of touch characteristics (such as temperature characteristics).

[0010] Figure 2 is a plan view of a typical double-layer touch panel 200 including touch sensors arranged in a plurality of rows and a plurality of columns.

[0011] Figure 1 The touch panel of Figure 2 The touch panel of

[0012] Referring to Figure 2 During touch sensing after the application of the drive signal, three touch sensors A, H, F are adjacent to the touch sensor C (210) in the row <01>, and sensor-to-sensor capacitances are formed between the touch sensors A and C, between the touch sensors C and H, and between the touch sensors C and F.

[0013] In addition, two sensor signal lines B, G are adjacent to the sensor signal line D (220) connected to the touch sensor C (210). Therefore, during touch sensing after the application of the drive signal, sensor signal line-to-sensor signal line capacitances are formed between the sensor signal lines B and D, and between the sensor signal lines D and G.

[0014] The input of the drive signal to the touch sensors and the sensor signal lines adjacent to the touch sensor C (210) when the touch sensor C (210) is activated for touch sensing ensures charge compensation, thereby enhancing touch sensitivity.

[0015] On the other hand, two touch sensors C, E are adjacent to the touch sensor A (210) in the row <00>. In addition, only one sensor signal line D is adjacent to the sensor signal line B (220) connected to the touch sensor A (210).

[0016] That is, the number of touch sensors adjacent to the touch sensor A (210) in the row <00> is one less than the number of touch sensors adjacent to the touch sensor C (210), and the number of sensor signal lines adjacent to the sensor signal line connected to the touch sensor A (210) is one less than the number of sensor signal lines adjacent to the sensor signal line connected to the touch sensor C (210).

[0017] Since the number of touch sensors and sensor signal lines adjacent to the touch sensors of the uppermost row (i.e., row <00>) is smaller than the number of touch sensors and sensor signal lines adjacent to the touch sensors of rows <01> and <02>, the touch sensors of row <00> have lower touch sensitivity than the touch sensors of rows <01> and <02>. Also, since the number of touch sensors adjacent to the touch sensors of the uppermost row is small, the touch sensors of the uppermost row are more susceptible to temperature changes, resulting in deterioration of temperature characteristics.

[0018] Figure 1 and Figure 2 The touch sensors of rows <00> and <09> have a design defect that causes a decrease in inter-sensor capacitance during touch sensing due to an insufficient number of touch sensors and sensor signal lines adjacent to the touch sensors. SUMMARY

[0019] Embodiments of the disclosure provide a touch panel having a compensated touch sensor pattern and a compensation driving method thereof, which can reduce a deviation in inter-sensor capacitance using the compensated touch sensor pattern, thereby compensating for a change in touch sensitivity and reducing a change in touch performance due to environmental changes.

[0020] According to an aspect of the disclosure, there is provided a touch panel having a compensated touch sensor pattern, the touch panel comprising:

[0021] a plurality of touch sensors arranged in a matrix of a plurality of rows and a plurality of columns;

[0022] a plurality of upper compensation touch sensors each disposed apart from a corresponding touch sensor among the plurality of touch sensors located in an uppermost row; and

[0023] a plurality of lower compensation touch sensors each disposed apart from a corresponding touch sensor among the plurality of touch sensors located in a lowermost row.

[0024] Preferably, the touch panel further comprises:

[0025] a sensor driver configured to control operations of the plurality of touch sensors, the plurality of upper compensation touch sensors, and the plurality of lower compensation touch sensors, and to sense a touch signal from each of the plurality of touch sensors; and

[0026] a plurality of switches each including at least one transistor and turning on / off the plurality of touch sensors, the plurality of upper compensation touch sensors, and the plurality of lower compensation touch sensors in response to a control signal from the sensor driver.

[0027] Preferably, the touch panel further comprises:

[0028] a plurality of sensor signal lines each connecting a corresponding one of the plurality of touch sensors, a corresponding one of the plurality of upper compensation touch sensors or a corresponding one of the plurality of lower compensation touch sensors to one of the plurality of switches.

[0029] Preferably, the plurality of touch sensors are activated for touch sensing row by row.

[0030] Preferably, when the touch sensors of the uppermost row are activated for touch sensing, drive signals of the touch sensors of the lowermost row are applied to the plurality of upper compensation touch sensors to form an inter-sensor capacitance between the touch sensors of the uppermost row and the plurality of upper compensation touch sensors, and a capacitance between a sensor signal line connected to the touch sensors of the uppermost row and a sensor signal line connected to the plurality of upper compensation touch sensors in the plurality of sensor signal lines to increase touch sensitivity of the touch sensors of the uppermost row.

[0031] Preferably, when the touch sensors of the lowermost row are activated for touch sensing, drive signals of the touch sensors of the uppermost row are applied to the plurality of lower compensation touch sensors to form an inter-sensor capacitance between the touch sensors of the lowermost row and the plurality of lower compensation touch sensors, and a capacitance between a sensor signal line connected to the touch sensors of the lowermost row and a sensor signal line connected to the plurality of lower compensation touch sensors in the plurality of sensor signal lines to increase touch sensitivity of the touch sensors of the lowermost row.

[0032] Preferably, the plurality of touch sensors, the plurality of upper compensation touch sensors, the plurality of lower compensation touch sensors and the plurality of sensor signal lines are formed on one transparent conductive film to form a single-layer structure.

[0033] Preferably, the plurality of touch sensors, the plurality of upper compensation touch sensors and the plurality of lower compensation touch sensors are formed on a first transparent conductive film and the plurality of sensor signal lines are formed on a second transparent conductive film to form a double-layer structure.

[0034] Preferably, the plurality of touch sensors are formed in an active area of the touch panel, and the plurality of upper compensation touch sensors and the plurality of lower compensation touch sensors are formed in an inactive area of the touch panel.

[0035] According to another aspect of the present disclosure, there is provided a compensation driving method of a touch panel having a compensation touch sensor pattern, the touch panel including: a plurality of touch sensors arranged in a matrix of a plurality of rows and a plurality of columns; a plurality of upper compensation touch sensors each disposed apart from a corresponding touch sensor among the plurality of touch sensors located in an uppermost row; and a plurality of lower compensation touch sensors each disposed apart from a corresponding touch sensor among the plurality of touch sensors located in a lowermost row.

[0036] The compensation driving method includes:

[0037] turning on touch sensors of a predetermined row among the plurality of touch sensors to detect whether at least one touch sensor among the touch sensors located in the predetermined row is touched; and

[0038] applying at least one driving signal to one or more touch sensors among one or more rows of the plurality of touch sensors located before and after the predetermined row, one or more upper compensation touch sensors among the plurality of upper compensation touch sensors, or one or more lower compensation touch sensors among the plurality of lower compensation touch sensors,

[0039] wherein a first driving signal is applied to the plurality of upper compensation touch sensors only when the touch sensors of the uppermost row are turned on, and

[0040] a second driving signal is applied to the plurality of lower compensation touch sensors only when the touch sensors of the lowermost row are turned on.

[0041] Preferably, when the first driving signal is applied to the plurality of upper compensation touch sensors, an inter-sensor capacitance is formed between the touch sensors of the uppermost row and the plurality of upper compensation touch sensors to increase touch sensitivity of the touch sensors of the uppermost row.

[0042] Preferably, when the second driving signal is applied to the plurality of lower compensation touch sensors, an inter-sensor capacitance is formed between the touch sensors of the lowermost row and the plurality of lower compensation touch sensors to increase touch sensitivity of the touch sensors of the lowermost row.

[0043] Embodiments of the present disclosure provide a touch panel having a compensation touch sensor pattern and a compensation driving method thereof, which can improve touch sensitivity of uppermost touch sensors and lowermost touch sensors of a touch sensor array in a matrix form by employing compensation touch sensors.

[0044] A touch panel having a compensation touch sensor pattern and a compensation driving method thereof can be applied to both a single-layer touch panel and a double-layer touch panel. BRIEF DESCRIPTION OF DRAWINGS

[0045] The above and other aspects, features and advantages of the present application will become apparent from the following detailed description taken in conjunction with the accompanying drawings, which illustrate a few embodiments of the present application by way of example:

[0046] Figure 1 is a plan view of a typical single-layer touch panel (100) including touch sensors arranged in a plurality of rows and a plurality of columns.

[0047] Figure 2 is a plan view of a typical double-layer touch panel (200) including touch sensors arranged in a plurality of rows and a plurality of columns.

[0048] Figure 3 is a plan view of a touch panel (300) having a compensation touch sensor pattern according to the present disclosure, showing an embodiment applied to a single-layer touch panel.

[0049] Figure 4 is a plan view of a touch panel (400) having a compensation touch sensor pattern according to the present disclosure, showing an embodiment applied to a double-layer touch panel.

[0050] Figure 5A is a schematic view of a switching circuit configured to control a plurality of upper compensation touch sensors according to the present disclosure.

[0051] Figure 5B is a schematic view of a switching circuit configured to control a plurality of lower compensation touch sensors according to the present disclosure.

[0052] Figure 6 is a timing chart of a driving signal output from a sensor driver according to the present disclosure.

[0053] Figure 7 is a timing chart of a multiplexer control signal output from a sensor driver according to the present disclosure.

[0054] Figure 8 is a timing chart of an upper compensation touch sensor control signal output from a sensor driver according to the present disclosure. DETAILED DESCRIPTION

[0055] Hereinafter, exemplary embodiments of the present application will be described with reference to the accompanying drawings.

[0056] The touch panel according to embodiments of the present disclosure can be used not only in mobile devices such as smart phones, personal digital assistants (PDAs), and portable media players (PMPs), but also in various types of electronic devices such as navigation devices, netbooks, notebooks, DIDs, and Internet protocol televisions (IPTVs).

[0057] The touch panel according to embodiments of the present disclosure can be attached to or embedded in various types of displays such as liquid crystal displays (LCDs), plasma display panels (PDPs), and organic light-emitting diodes (OLEDs).

[0058] Figure 3 is a plan view of a touch panel 300 having a compensated touch sensor pattern according to the present disclosure, showing an embodiment applied to a single-layer touch panel.

[0059] According to an aspect of the present disclosure, a touch panel 300 having a compensated touch sensor pattern includes a plurality of touch sensors 320 arranged in a matrix of a plurality of rows and a plurality of columns, a plurality of upper compensation touch sensors 310 each disposed apart from a corresponding one of touch sensors [00, 00 to 07, 00] of an uppermost row among the plurality of touch sensors 320, and a plurality of lower compensation touch sensors 310 each disposed apart from a corresponding one of touch sensors [00, 09 to 07, 09] of a lowermost row among the plurality of touch sensors 320.

[0060] The touch panel 300 having a compensated touch sensor pattern according to one embodiment of the present disclosure further includes a sensor driver 360 configured to control operations of the plurality of touch sensors 320, the plurality of upper compensation touch sensors 310, and the plurality of lower compensation touch sensors 330 and to sense touch signals from each touch sensor 320.

[0061] The touch panel 300 having a compensated touch sensor pattern according to one embodiment of the present disclosure further includes a plurality of switches 350 (switch_0 to switch_3) each including at least one transistor and turning on / off the plurality of touch sensors 320, the plurality of upper compensation touch sensors 310, and the plurality of lower compensation touch sensors 330 in response to a control signal from the sensor driver 360.

[0062] Additionally, according to one embodiment of the present disclosure, the touch panel 300 with a compensated touch sensor pattern further includes: a plurality of sensor signal lines 340, each connecting a corresponding touch sensor 320, a corresponding upper compensated touch sensor 310, or a corresponding lower compensated touch sensor 330 to one of the plurality of switches 350.

[0063] exist Figure 3 In the touch panel 300 shown, the plurality of touch sensors 320, the plurality of upper compensation touch sensors 310, the plurality of lower compensation touch sensors 330 and the plurality of sensor signal lines 340 are formed on a transparent conductive film to form a single-layer structure.

[0064] In a touch panel 300 with a compensated touch sensor pattern according to an embodiment of the present disclosure, the plurality of touch sensors 320 are activated for touch sensing row by row.

[0065] and Figure 1 Unlike typical touch panels shown, the touch panel according to this disclosure includes: a plurality of upper compensated touch sensors, each disposed before a corresponding one of the touch sensors [00,00 to 07,00] in the uppermost row; and a plurality of lower compensated touch sensors, each disposed after a corresponding one of the touch sensors [00,09 to 07,09] in the lowermost row.

[0066] In one embodiment, the touch panel 300 according to the present disclosure may be configured such that the plurality of touch sensors 320 are disposed in the effective area of ​​the touch panel and the plurality of upper compensated touch sensors 310 and the plurality of lower compensated touch sensors 330 are disposed in the ineffective area of ​​the touch panel.

[0067] The size and shape of the plurality of upper compensated touch sensors 310 and the plurality of lower compensated touch sensors 330 according to this disclosure are not particularly limited.

[0068] The distance between the plurality of upper compensated touch sensors 310 and the touch sensors [00,00 to 07,00] in the uppermost row is equal to the distance between adjacent rows of the array of touch sensors 320.

[0069] Similarly, the distance between the plurality of lower compensated touch sensors 330 and the touch sensors [00,09 to 07,09] in the bottom row is equal to the distance between adjacent rows of the array of touch sensors 320.

[0070] In one embodiment, when the uppermost row of touch sensors 320 [00, 09 to 07, 09] are activated for touch sensing, the driving signals of the lowermost row of touch sensors 320 [00, 00 to 07, 00] are applied to the plurality of upper compensation touch sensors 310 to form an inter-sensor capacitance between the uppermost row of touch sensors and the upper compensation touch sensors, and to form a capacitance between the sensor signal lines connected to the uppermost row of touch sensors and the sensor signal lines connected to the upper compensation touch sensors, thereby increasing the touch sensitivity of the uppermost row of touch sensors.

[0071] In one embodiment, when the lowermost row of touch sensors 320 [00, 09 to 07, 09] are activated for touch sensing, the driving signals of the uppermost row of touch sensors 320 [00, 00 to 07, 00] are applied to the plurality of lower compensation touch sensors 330 to form an inter-sensor capacitance between the lowermost row of touch sensors and the lower compensation touch sensors, and to form a capacitance between the sensor signal lines connected to the lowermost row of touch sensors and the sensor signal lines connected to the lower compensation touch sensors, thereby increasing the touch sensitivity of the lowermost row of touch sensors.

[0072] Figure 4 is a plan view of a touch panel 400 having a compensation touch sensor pattern according to the present disclosure, showing an embodiment applied to a double-layered touch panel.

[0073] The touch panel 400 having a compensation touch sensor pattern according to the present disclosure can be configured in a double-layered structure.

[0074] That is, the plurality of touch sensors 420, the plurality of upper compensation touch sensors 410, and the plurality of lower compensation touch sensors are formed on a first transparent conductive film and the plurality of sensor signal lines 430 are formed on a second transparent conductive film to form a double-layered structure.

[0075] Unlike the typical touch panel 200 of Figure 2 The touch panel 400 having a compensation touch sensor pattern according to the present disclosure includes an upper compensation touch sensor I 410 above a touch sensor A 420.

[0076] Referring to Figure 4 Due to the presence of the upper compensation touch sensor 410, a capacitance a is formed between the upper compensation touch sensor I 410 and the touch sensor A 420 and a capacitance b is formed between the signal line connected to the upper compensation touch sensor I and the sensor signal line B.

[0077] The touch sensitivity of the touch sensor A 420 during touch sensing is enhanced by the capacitance a and the capacitance b formed when the driving signal is applied.

[0078] Although not shown in Figure 4 , it can be inferred that the touch sensitivity of the touch sensor of the lowermost row will also be enhanced by the inter-sensor capacitance formed between the touch sensor of the lowermost row and the lower compensation touch sensor, and the capacitance formed between the sensor signal line connected to the touch sensor of the lowermost row and the sensor signal line connected to the lower compensation touch sensor.

[0079] The upper compensation touch sensor 410 and the lower compensation touch sensor are activated by a driving signal substantially only similar to a square wave.

[0080] In addition to the driving signal, no sensing signal for touch sensing is applied to the upper compensation touch sensor.

[0081] Since only the driving signal for compensating for the change in touch sensitivity is input to the upper compensation touch sensor 410 and the lower compensation touch sensor, the need for an additional sensor channel or additional calculation time and resources can be eliminated.

[0082] Figure 5A is a schematic diagram of a switching circuit configured to control a plurality of upper compensation touch sensors according to the present disclosure.

[0083] The driving signal applied to each touch sensor, the upper compensation touch sensor, and the lower compensation touch sensor and its corresponding control signal are different for each row of touch sensors.

[0084] Figure 5A Operation of a switching circuit configured to control a plurality of upper compensation touch sensors according to the present disclosure is shown.

[0085] When the touch sensors of row <00> are activated for touch sensing, a driving signal is applied to compensate for the change in touch sensitivity. Specifically, the driving signal is simultaneously applied to the touch sensors of row <01>, the touch sensors of row <02>, the touch sensors of row <08>, and the touch sensors of row <09>.

[0086] In the present disclosure, the driving signal of the touch sensors of row <09> is applied to the upper compensation touch sensor 510.

[0087] As described above, when the driving signal is applied to the upper compensation touch sensor 510, an inter-sensor capacitance is formed between the upper compensation touch sensor 510 and the corresponding touch sensor in row <00>.

[0088] The driving signal 540 of the touch sensor of row <09> is applied to the upper compensation touch sensor 510 only when the touch sensor of row <00> is activated for touch sensing.

[0089] When a touch sensor other than the touch sensor of row <00> is activated for touch sensing, no driving signal is applied to the upper compensation touch sensor 510.

[0090] To ensure that the driving signal of the touch sensor of row <09> is applied only when the touch sensor of row <00> is activated for touch sensing, the control signal 530 for the touch sensor of row <00> is connected to the gate of the transistor 520 of the switch connected to the upper compensation touch sensor 510, as shown in FIG. 5B. Figure 5A

[0091] The driving signal 540 of the touch sensor of row <09> is applied to the upper compensation touch sensor 510 only when the gate of the transistor is turned on.

[0092] Figure 5B is a schematic diagram of a switching circuit configured to control a plurality of lower compensation touch sensors according to the present disclosure.

[0093] Referring to Figure 5B , the driving signal 580 of the touch sensor of row <00> is applied to the lower compensation touch sensor 550 only when the touch sensor of row <09> (the lowermost touch sensor) is activated for touch sensing.

[0094] When a touch sensor other than the touch sensor of row <09> is activated for touch sensing, no driving signal is applied to the lower compensation touch sensor 550.

[0095] To ensure that the driving signal of the touch sensor of row <00> is applied to the lower compensation touch sensor 550 only when the touch sensor of row <09> is activated for touch sensing, the control signal 570 for the touch sensor of row <09> is connected to the gate of the transistor 560 of the switch connected to the lower compensation touch sensor 550, as shown in FIG. 6B. Figure 5B

[0096] The driving signal 580 of the touch sensor of row <00> is applied to the lower compensation touch sensor 550 only when the gate of the transistor is turned on.

[0097] ​​By preventing the upper / lower compensation touch sensors from being driven when the touch sensors other than the row<00> / row<09> touch sensors are activated for touch sensing, radiation of electromagnetic interference (EMI) can be suppressed.

[0098] In the touch panel according to the disclosure, a touch sensing signal or a driving signal is output from a sensor driver 360 (see Figure 3 ).

[0099] The touch sensing signal or the driving signal is controlled by a transistor in a switch.

[0100] The switch can be embedded inside a touch integrated circuit (IC), or can be embedded in the touch panel. The switch can include several hundred multiplexers to control switching of each sensor channel.

[0101] In one embodiment, the sensor driver 360 is configured to output a negative voltage to turn on a signal and output a positive voltage to turn off a signal, thereby controlling multiplexers in the switch 350.

[0102] Figure 6 is a timing chart of a driving signal output from a sensor driver according to the disclosure.

[0103] Figure 6 shows timing of a driving signal output from a sensor driver.

[0104] In Figure 6 , sensing timing of the row<00> touch sensor is denoted by "a". At the timing "a", respective driving signals of the row<upper compensation touch sensor>, row<00>, row<01>, row<02>, row<08>, and row<09> are output from the sensor driver and simultaneously applied to the row<01> touch sensor, the row<02> touch sensor, the row<08> touch sensor, and the row<09> touch sensor.

[0105] Figure 7 is a timing chart of a multiplexer control signal output from a sensor driver according to the disclosure.

[0106] Figure 7 shows timing of a control signal for turning on / off a multiplexer.

[0107] Referring to Figure 7 , in the timing "a" in which the row<00> touch sensor is activated (see Figure 6) place, only a negative voltage is applied to the row <00> and the row <upper compensation touch sensor> to turn on the multiplexer. When the multiplexer is turned on, a driving signal is applied to the touch sensor of the row <upper compensation touch sensor>.

[0108] Figure 8 is a timing chart of an upper compensation touch sensor control signal output from a sensor driver according to the present disclosure.

[0109] Referring to Figure 8 , only a driving signal is applied to the row <upper compensation touch sensor> at timing "a" in which the touch sensor of the row <00> is activated. That is, it can be seen that, due to the control signal, Figure 6 Some of the driving signal outputs are turned off and no driving signal is applied at timings "c" and "d" in

[0110] Even though the sensors are added, by using these control signals, the row <upper compensation touch sensor> and the row <lower compensation touch sensor> are still enabled to operate efficiently, thereby preventing problems such as space limitation, EMI radiation increase, and touch performance deterioration.

[0111] In addition, the touch panel having compensation touch sensors according to the present disclosure can enhance the touch sensitivity of the uppermost touch sensor and the lowermost touch sensor, and can reduce touch sensitivity deviation due to temperature change.

[0112] According to another aspect of the present disclosure, a compensation driving method of a touch panel having a compensation touch sensor pattern includes turning on a touch sensor of a predetermined row to detect whether at least one touch sensor located in the predetermined row is touched, and applying at least one driving signal to one or more touch sensors located in one or more rows before and after the predetermined row, one or more upper compensation sensors, or one or more lower compensation touch sensors.

[0113] A first driving signal is applied to the plurality of upper compensation touch sensors only when the touch sensor of the uppermost row is turned on, and a second driving signal is applied to the plurality of lower compensation touch sensors only when the touch sensor of the lowermost row is turned on.

[0114] In one embodiment, when the first driving signal is applied to the plurality of upper compensation touch sensors, an inter-sensor capacitance is formed between the touch sensor of the uppermost row and the upper compensation touch sensor, thereby enhancing the touch sensitivity of the touch sensor of the uppermost row.

[0115] Similarly, when the second driving signal is applied to the plurality of lower compensation touch sensors, an inter-sensor capacitance is formed between the touch sensors of the lowermost row and the lower compensation touch sensors, thereby enhancing the touch sensitivity of the touch sensors of the lowermost row.

[0116] Although the present disclosure has been described with reference to some embodiments thereof, it is apparent to those having ordinary skill in the art that a variety of modifications, changes, alternatives, and equivalents can be made thereto without departing from the spirit and scope of the present disclosure.

Claims

1. A touch panel having a touch sensor pattern compensated, comprising: a plurality of touch sensors arranged in a matrix of a plurality of rows and a plurality of columns; a plurality of upper compensation touch sensors each disposed apart from a corresponding touch sensor among the plurality of touch sensors in an uppermost row; and a plurality of lower compensation touch sensors each disposed apart from a corresponding touch sensor among the plurality of touch sensors in a lowermost row. 2.The touch panel of claim 1, further comprising: a sensor driver configured to control operations of the plurality of touch sensors, the plurality of upper compensation touch sensors, and the plurality of lower compensation touch sensors, and to sense a touch signal from each of the plurality of touch sensors; and a plurality of switches each including at least one transistor and turning on or off the plurality of touch sensors, the plurality of upper compensation touch sensors, and the plurality of lower compensation touch sensors in response to a control signal from the sensor driver. 3.The touch panel of claim 2, further comprising: a plurality of sensor signal lines each connecting a corresponding touch sensor among the plurality of touch sensors, a corresponding upper compensation touch sensor among the plurality of upper compensation touch sensors, or a corresponding lower compensation touch sensor among the plurality of lower compensation touch sensors to one of the plurality of switches. 4.The touch panel of claim 3, wherein the plurality of touch sensors are activated for touch sensing row by row. when the touch sensor of the uppermost row is activated for touch sensing, applying a driving signal of the touch sensor of the lowermost row to the plurality of upper compensation touch sensors to form an inter-sensor capacitance between the touch sensor of the uppermost row and the plurality of upper compensation touch sensors, and to form a capacitance between a sensor signal line connected to the touch sensor of the uppermost row among the plurality of sensor signal lines and a sensor signal line connected to the plurality of upper compensation touch sensors among the plurality of sensor signal lines to increase touch sensitivity of the touch sensor of the uppermost row.

5. The touch panel according to claim 4, wherein, when the touch sensor of the lowermost row is activated for touch sensing, applying a driving signal of the touch sensor of the uppermost row to the plurality of lower compensation touch sensors to form an inter-sensor capacitance between the touch sensor of the lowermost row and the plurality of lower compensation touch sensors, and to form a capacitance between a sensor signal line connected to the touch sensor of the lowermost row among the plurality of sensor signal lines and a sensor signal line connected to the plurality of lower compensation touch sensors among the plurality of sensor signal lines to increase touch sensitivity of the touch sensor of the lowermost row.

6. The touch panel according to claim 4, wherein, 7.The touch panel of claim 3, wherein the plurality of touch sensors, the plurality of upper compensation touch sensors, the plurality of lower compensation touch sensors, and the plurality of sensor signal lines are formed on one transparent conductive film to form a single-layer structure. ​ 8. The touch panel according to claim 3, wherein the plurality of touch sensors, the plurality of upper compensating touch sensors, and the plurality of lower compensating touch sensors are formed on a first transparent conductive film and the plurality of sensor signal lines are formed on a second transparent conductive film to form a double-layered structure.

9. The touch panel according to claim 1, wherein the plurality of touch sensors are formed in an active area of the touch panel, and the plurality of upper compensating touch sensors and the plurality of lower compensating touch sensors are formed in an inactive area of the touch panel. a plurality of touch sensors arranged in a matrix of a plurality of rows and a plurality of columns; a plurality of upper compensating touch sensors each disposed apart from a corresponding touch sensor among the plurality of touch sensors in an uppermost row; 10. A compensation driving method of a touch panel having a compensation touch sensor pattern, the touch panel comprising: and a plurality of lower compensating touch sensors each disposed apart from a corresponding touch sensor among the plurality of touch sensors in a lowermost row, the compensating driving method comprising: turning on touch sensors of a predetermined row among the plurality of touch sensors to detect whether at least one of the touch sensors in the predetermined row is touched; and applying at least one driving signal to one or more touch sensors in one or more rows before and after the predetermined row among the plurality of touch sensors, one or more upper compensating touch sensors among the plurality of upper compensating touch sensors, or one or more lower compensating touch sensors among the plurality of lower compensating touch sensors, wherein a first driving signal is applied to the plurality of upper compensating touch sensors only when the touch sensors of the uppermost row are turned on, and a second driving signal is applied to the plurality of lower compensating touch sensors only when the touch sensors of the lowermost row are turned on. when the first driving signal is applied to the plurality of upper compensating touch sensors, an inter-sensor capacitance is formed between the touch sensors of the uppermost row and the plurality of upper compensating touch sensors to increase touch sensitivity of the touch sensors of the uppermost row. when the second driving signal is applied to the plurality of lower compensating touch sensors, an inter-sensor capacitance is formed between the touch sensors of the lowermost row and the plurality of lower compensating touch sensors to increase touch sensitivity of the touch sensors of the lowermost row.

11. The compensation driving method according to claim 10, wherein ​ 12. The compensation driving method according to claim 10, wherein ​

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