Touch module, display device including the same, and electronic device including the display device

Abstract

A touch module, a display device including the same, and an electronic device including the display device are provided. The touch module includes: a touch panel including touch electrodes; and a touch panel driver configured to provide a touch driving signal to the touch panel and detect a touch of the object based on a touch sensing signal received from the touch panel in response to the touch driving signal. The touch panel is of a self-pointing type, and the touch panel driver includes touch drivers, and each of the touch drivers is configured to provide touch driving signals having different frequencies to the touch panel.

Description

Technical Field

[0001] Embodiments of the present invention relate to a touch module, a display device including a touch module, and an electronic device including a display device. More specifically, embodiments relate to a touch module for reducing electromagnetic interference (EMI), a display device including a touch module, and an electronic device including a display device. Background Technology

[0002] A touch module is a device used to detect user input actions or events. A touch module may include a touch panel and a touch panel driver for driving the touch panel. The touch panel may be mounted on the surface of a display panel or integrated within the display panel.

[0003] When the touch panel is touched by a conductive object such as a user's body or a stylus, it can generate an electrical signal. The touch panel driver can then detect the presence and location of the touch based on this electrical signal.

[0004] Driving a touch panel driver can generate electromagnetic interference (EMI), which is unexpected noise that can adversely affect the operation of electronic devices. The amount of EMI tends to increase as the size of the touch panel increases. Furthermore, improving touch performance typically requires applying higher voltages to the touch panel, which further amplifies EMI. Summary of the Invention

[0005] Embodiments of the present invention provide a touch module configured to reduce EMI while maintaining high touch performance even in large touch panels, a display device including the touch module, and an electronic device including the display device.

[0006] In an embodiment of the touch module according to the present invention, the touch module includes: a touch panel including touch electrodes; and a touch panel driver configured to provide touch driving signals to the touch panel and detect touch of an object based on touch sensing signals received from the touch panel in response to the touch driving signals. The touch panel is self-pointing, and the touch panel driver includes touch drivers, each of which is configured to provide touch driving signals to the touch panel with a different frequency.

[0007] In this embodiment, electromagnetic interference (EMI) can be reduced as the number of different frequencies increases.

[0008] In an embodiment, the touch electrodes included in the self-pointing touch panel can form touch capacitors with an object, and the touch panel driver can be configured to detect touch of the object based on capacitance changes in each of the touch capacitors.

[0009] In an embodiment, the touch electrodes included in the self-pointing touch panel can be arranged along rows and columns.

[0010] In an embodiment, the touch panel may further include touch lines connected to touch electrodes and multiplexers connected to the touch lines, and each of the touch drivers may be configured to provide a touch drive signal to each of the corresponding multiplexers.

[0011] In an embodiment, the touch drive signals applied to touch electrodes arranged adjacent to each other along a row may have different timing sequences.

[0012] In an embodiment, when the touch driver includes a first touch driver configured to output a first touch drive signal having a first frequency and a second touch driver configured to output a second touch drive signal having a second frequency, the touch panel may include a first touch area and a second touch area arranged adjacent to each other along a row, and the first touch drive signal may be applied to the touch electrodes included in the first touch area, and the second touch drive signal may be applied to the touch electrodes included in the second touch area.

[0013] In an embodiment, the first frequency and the second frequency may be different from each other.

[0014] In an embodiment, the first frequency and the second frequency can be selected such that the least common multiple of the reciprocal of the first frequency and the reciprocal of the second frequency is greater than a predetermined threshold.

[0015] In one embodiment, EMI can be reduced as the least common multiple of the reciprocal of the first frequency and the reciprocal of the second frequency increases.

[0016] In an embodiment, when the first touch driver is configured to output a first touch driving signal having a first frequency and a third touch driving signal having a third frequency, and the second touch driver is configured to output a second touch driving signal having a second frequency and a fourth touch driving signal having a fourth frequency, the touch panel may further include a third touch area and a fourth touch area arranged adjacent to each other along a row, the third touch area may be arranged adjacent to the first touch area along a column, the fourth touch area may be arranged adjacent to the second touch area along a column, the third touch driving signal may be applied to the touch electrodes included in the third touch area, and the fourth touch driving signal may be applied to the touch electrodes included in the fourth touch area.

[0017] In the embodiments, the first frequency, the second frequency, the third frequency, and the fourth frequency may be different from each other.

[0018] In an embodiment of a display device according to the present invention, the display device includes: a display module including a display panel and a display panel driver configured to drive the display panel; and a touch module including a touch panel and a touch panel driver configured to drive the touch panel. The touch panel includes touch electrodes. The touch panel driver is configured to provide touch drive signals to the touch panel and detect touch of an object based on touch sensing signals received in response to the touch drive signals. The touch panel is self-pointing. The touch panel driver includes touch drivers, and each of the touch drivers is configured to provide touch drive signals of a different frequency to the touch panel.

[0019] In this embodiment, EMI can be reduced as the number of different frequencies increases.

[0020] In an embodiment, the touch electrodes included in the self-pointing touch panel can form touch capacitors with an object, and the touch panel driver can be configured to detect touch of the object based on capacitance changes in each of the touch capacitors.

[0021] In an embodiment, the touch electrodes included in the self-pointing touch panel can be arranged along rows and columns.

[0022] In an embodiment, the touch panel may further include touch lines connected to touch electrodes and multiplexers connected to the touch lines, and each of the touch drivers may be configured to provide a touch drive signal to each of the corresponding multiplexers.

[0023] In an embodiment, the touch drive signals applied to touch electrodes arranged adjacent to each other along a row may have different timing sequences.

[0024] In an embodiment, when the touch driver includes a first touch driver configured to output a first touch drive signal having a first frequency and a second touch driver configured to output a second touch drive signal having a second frequency, the touch panel may include a first touch area and a second touch area arranged adjacent to each other along a row, and the first touch drive signal may be applied to the touch electrodes included in the first touch area, and the second touch drive signal may be applied to the touch electrodes included in the second touch area.

[0025] In an embodiment of an electronic device according to the present invention, the electronic device includes: a processor configured to output input image data and input control signals; a display module including a display panel and a display panel driver configured to drive the display panel based on the input image data and input control signals; and a touch module including a touch panel and a touch panel driver configured to drive the touch panel. The touch panel includes touch electrodes. The touch panel driver is configured to provide touch drive signals to the touch panel and detect touch of an object based on touch sensing signals received from the touch panel in response to the touch drive signals. The touch panel is self-pointing. The touch panel driver includes touch drivers, and each of the touch drivers is configured to provide touch drive signals to the touch panel with a different frequency.

[0026] Depending on the touch module, display device, and electronic device, each of the touch drivers in the touch panel driver of the touch module can provide touch drive signals of different frequencies to the touch panel. Furthermore, the touch panel can be a self-pointing touch panel. Therefore, the number of different frequencies can be increased. Thus, even when the touch panel size is large, EMI can be reduced while maintaining high touch performance. Attached Figure Description

[0027] The above and other features of the embodiments of the present invention will become more apparent from the detailed description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0028] Figure 1 This is a block diagram illustrating a display device according to an embodiment of the concept of the present invention;

[0029] Figure 2 This is a concept diagram explaining the mutual capacitance touch panel and the self-pointing touch panel;

[0030] Figure 3 This is a diagram illustrating a touch module according to an embodiment of the concept of the present invention;

[0031] Figure 4 and Figure 5 It is an explanation Figure 3 A diagram illustrating the operation of the touch module;

[0032] Figure 6 It is shown Figure 3 A diagram illustrating an example of how the touch module operates;

[0033] Figure 7 It shows the area divided into a first touch area and a second touch area. Figure 6 A diagram of the touch panel;

[0034] Figure 8 It is shown that it is provided to Figure 7A timing diagram comparing the first touch drive signal and the second touch drive signal of the first touch area and the second touch area;

[0035] Figure 9 and Figure 10 It is shown that it is provided to Figure 7 Timing diagrams of the first touch drive signal and the second touch drive signal for the first touch area and the second touch area;

[0036] Figure 11 It is shown Figure 3 A diagram illustrating an example of how the touch module operates;

[0037] Figure 12 This shows the areas divided into first to fourth touch zones. Figure 11 A diagram of the touch panel;

[0038] Figure 13 It is shown Figure 3 A diagram illustrating an example of how the touch module operates;

[0039] Figure 14 This shows the areas divided into first to fourth touch zones. Figure 13 A diagram of the touch panel;

[0040] Figure 15 It is shown Figure 3 A diagram illustrating an example of how the touch module operates;

[0041] Figure 16 This shows the touch areas divided into first to eighth zones. Figure 15 A diagram of the touch panel;

[0042] Figure 17 It is a graph showing the variation of EMI according to the frequency of the touch drive signal;

[0043] Figure 18 This is a block diagram showing an electronic device;

[0044] Figure 19 It is shown Figure 18 The diagram shows an embodiment of the electronic device implemented as a vehicle window; and

[0045] Figure 20 This is a block diagram illustrating an electronic device according to an example embodiment. Detailed Implementation

[0046] At least one embodiment of the present invention relates to a touch module comprising a touch panel (e.g., a self-pointing type) and a touch panel driver. The touch panel includes touch electrodes, and the touch panel driver includes a plurality of touch drivers, each configured to output touch drive signals with different frequencies. These frequency differential signals are applied to the touch panel to detect touch of an object based on received touch sensing signals. By using different frequencies (e.g., across adjacent regions), the system can reduce electromagnetic interference (EMI) while still supporting high-performance touch detection on large touch panels.

[0047] The inventive concept will be described in more detail below with reference to the accompanying drawings.

[0048] Figure 1 This is a block diagram illustrating a display device 10 according to an embodiment of the concept of the present invention. Figure 2 This is a conceptual diagram explaining mutual capacitive and self-contact touch panels. A self-contact touch panel is a capacitive touch panel in which each individual touch electrode independently acts as both a transmitting node and a receiving node, rather than having separate transmitting and receiving electrodes arranged in intersecting rows and columns (as in mutual capacitive).

[0049] refer to Figure 1 The display device 10 may include a display module configured to display an image and a touch module configured to recognize or detect user input actions or user events. The display module may include a display panel driver 100 (e.g., a first driver circuit) and a display panel 200, and the touch module may include a touch panel driver 300 (e.g., a second driver circuit) and a touch panel 400.

[0050] The display panel driver 100 can drive the display panel 200 to display images. The display panel driver 100 can receive input image data IMG and input control signals CONT from an external processor (not shown). For example, the input image data IMG may include red image data, green image data, and blue image data. The input image data IMG may include white image data. The input image data IMG may include magenta image data, yellow image data, and cyan image data. The input control signal CONT may include a master clock signal and a data enable signal. The input control signal CONT may further include a vertical synchronization signal and a horizontal synchronization signal.

[0051] The display panel driver 100 can generate a display panel driving signal based on the input image data IMG and the input control signal CONT, and provide the display panel driving signal to the display panel 200. In an embodiment, the display panel driving signal may include a gate signal and a data signal, and the display panel driver 100 may include a gate driver that provides the gate signal to the display panel 200, a data driver that provides the data signal to the display panel 200, and a drive controller that controls the gate driver and the data driver, but is not limited thereto.

[0052] The display panel 200 can display images based on grid signals and data signals.

[0053] Touch panel driver 300 can drive touch panel 400 to detect touch of an object. Touch panel driver 300 can generate touch drive signals to provide touch drive signals to touch panel 400, and can receive touch sensing signals from touch panel 400. Touch panel driver 300 can detect touch of an object based on touch sensing signals (e.g., based on touch sensing signals received in response to touch drive signals). Touch panel driver 300 can generate touch data TD representing a detected touch, and can provide touch data TD to display panel driver 100 or an external processor.

[0054] refer to Figure 2 The touch panel 400 can be a capacitive touch panel that detects capacitance changes (i.e., voltage changes) caused by the touch of an object. Capacitive touch panels can include mutual-type touch panels and self-dot type touch panels.

[0055] A capacitive touch panel may include transmitting touch electrode lines TX and receiving touch electrode lines RX. For example, the transmitting touch electrode lines TX may extend along a row, and the receiving touch electrode lines RX may extend along a column. Each of the transmitting touch electrode lines TX may form a touch capacitor with each of the receiving touch electrode lines RX. Each of the transmitting touch electrode lines TX may transmit a touch drive signal along the row. Therefore, the touch capacitor formed along the row between the transmitting touch electrode lines TX and the receiving touch electrode lines RX may receive the same touch drive signal. Each of the receiving touch electrode lines RX may transmit the capacitance change (i.e., voltage change) caused by the touch of an object as a touch sensing signal.

[0056] A self-contact touch panel may include touch electrodes TE and touch lines TL connected to the touch electrodes TE. For example, the touch electrodes TE may be arranged along rows and columns, and the touch lines TL may extend along columns. The touch electrodes TE may form a touch capacitor with an object. For example, each of the touch electrodes TE may form a capacitive coupling (i.e., a touch capacitor) with an external object when it is near or touched. Each of the touch lines TL may transmit a touch drive signal along the column. Each of the touch lines TL may transmit the capacitance change (i.e., voltage change) caused by the touch of an object as a touch sensing signal along the column.

[0057] In this embodiment, the touch panel 400 can be a self-pointing touch panel.

[0058] Figure 3 This is a diagram illustrating a touch module according to an embodiment of the concept of the present invention. Figure 4 and Figure 5 This is an explanation based on the embodiments. Figure 3 A diagram illustrating the operation of the touch module.

[0059] refer to Figures 3 to 5 The touch module may include a touch panel driver 300 and a touch panel 400.

[0060] The touch panel driver 300 may include touch driver TICs. Each of the touch driver TICs may be configured as a touch IC. Typically, as the size of the touch panel 400 increases, the number of touch driver TICs may also increase. In this embodiment, the number of touch driver TICs may be two or more. In this embodiment, each of the touch driver TICs provides a touch drive signal TDS with a different frequency to the touch panel 400, but is not limited thereto. For example, at least two of the adjacent touch driver TICs may provide touch drive signals TDS that are different from each other.

[0061] As described above, the touch panel 400 can be a self-contained touch panel. The self-contained touch panel 400 can include touch electrodes TE and touch lines TL connected to the touch electrodes TE. For example, the touch electrodes TE can be arranged along rows and columns, and the touch lines TL can extend along columns. For example, the touch electrodes TE can be arranged in a grid pattern along rows and columns, while the touch lines TL extend along columns. For example, the touch electrodes TE arranged along columns can form a channel CH.

[0062] The touch panel 400 may further include multiplexers MUX connected to touch lines TL. Each multiplexer MUX can selectively provide a touch drive signal TDS from each of the touch drivers TIC to each of the touch lines TL, and each touch line TL can transmit the touch drive signal TDS to each of the touch electrodes TE. For example, each multiplexer MUX can selectively route the touch drive signal TDS received from the corresponding touch driver TIC to one of the touch lines TL, and each touch line TL can transmit the touch drive signal TDS to its associated touch electrode TE.

[0063] The touch electrode TE can form a touch capacitor CT with the object OBJ. The touch panel driver 300 can be configured to detect touch on the object OBJ based on the capacitance change of each of the touch capacitors CT. For example, the touch drive signal TDS can be a square wave. The square wave touch drive signal TDS can swing between a pre-charge voltage VPRE and a discharge voltage VDIS. Specifically, the touch drive signal TDS can have a pre-charge voltage VPRE during the pre-charge period and a discharge voltage VDIS during the discharge period. Therefore, the voltage V_TE of the touch electrode TE of the touch capacitor CT can be pre-charged with the pre-charge voltage VPRE during the pre-charge period and discharged to the discharge voltage VDIS during the discharge period.

[0064] When the touch panel 400 is touched by the object OBJ, the voltage V_TE of the touch electrode TE of the touch capacitor CT can have a voltage change ΔV. Each of the touch lines TL can transmit the voltage change ΔV as a touch sensing signal TSS to the touch driver TIC via a multiplexer MUX. Specifically, the voltage V_TE of the touch electrode TE of the touch capacitor CT adjacent to the touch position can have a voltage change ΔV. The voltage change ΔV can vary depending on the distance between the touch position and each touch capacitor CT. The position of the touch electrode TE that displays the largest voltage change ΔV can be identified as the touch position.

[0065] As the number of touch electrodes TE increases (i.e., as the size of the touch panel 400 increases), and as the difference between the pre-charge voltage VPRE and the discharge voltage VDIS increases, the touch functionality may be enhanced, but electromagnetic interference (EMI) may also increase.

[0066] To reduce electromagnetic interference (EMI) while maintaining high touch performance on the large touch panel 400, the touch panel driver 300 of the touch module may include multiple touch driver ICs, each configured to provide a touch drive signal TDS. At least two of the touch drive signals TDS may have different frequencies. The touch drive signals TDS applied to adjacent touch electrodes TE arranged in a row have different timing sequences. Furthermore, the touch panel 400 may be a self-pointing touch panel. Figure 6 Describe a specific example.

[0067] Figure 6 It is shown Figure 3 A diagram illustrating an example of how the touch module operates. Figure 7 This shows the area divided into a first touch area TA1 and a second touch area TA2. Figure 6 The image shows the touch panel 400. Figure 8 It is shown that it is provided to Figure 7 A timing diagram comparing the first touch drive signal TDS1 and the second touch drive signal TDS2 of the first touch area TA1 and the second touch area TA2. Figure 9 and Figure 10 It is shown that it is provided to Figure 7 Timing diagram of example first touch drive signals TDS1 and second touch drive signals TDS2 for first touch area TA1 and second touch area TA2.

[0068] refer to Figure 6 and Figure 7 The touch module may include a touch panel driver 300 and a touch panel 400.

[0069] The touch panel driver 300 may include a touch driver TIC. For example, the touch driver TIC may include a first touch driver TIC1 and a second touch driver TIC2. The first touch driver TIC1 may provide the touch panel 400 with a first touch drive signal TDS1 having a first frequency F1. The second touch driver TIC2 may provide the touch panel 400 with a second touch drive signal TDS2 having a second frequency F2. In an embodiment, the first frequency F1 is different from the second frequency F2.

[0070] The touch panel 400 can be a self-contained touch panel. The self-contained touch panel 400 may include touch electrodes TE, touch lines TL connected to the touch electrodes TE, and multiplexers MUX connected to the touch lines TL. For example, the touch electrodes TE may include first to sixteenth touch electrodes TE1 to TE16. For example, the touch lines TL may include first to sixteenth touch lines TL1 to TL16. For example, the multiplexers MUX may include first to fourth multiplexers MUX1 to MUX4. However, the inventive concept is not limited to this. Figure 6 The number of touch drivers (TIC) shown is (e.g., 2), the number of touch electrodes (TE) is (e.g., 16), the number of touch lines (TL) is (e.g., 16), and the number of multiplexers (MUX) is (e.g., 4).

[0071] The first to fourth touch electrodes TE1 to TE4 can form a first channel CH1 and can be connected to the first to fourth touch lines TL1 to TL4, and the first to fourth touch lines TL1 to TL4 can be connected to a first multiplexer MUX1. A first touch drive signal TDS1 with a first frequency F1 can be provided to the first multiplexer MUX1.

[0072] The fifth to eighth touch electrodes TE5 to TE8 can form a second channel CH2 and can be connected to the fifth to eighth touch lines TL5 to TL8, and the fifth to eighth touch lines TL5 to TL8 can be connected to a second multiplexer MUX2. A first touch drive signal TDS1 with a first frequency F1 can be provided to the second multiplexer MUX2.

[0073] The ninth to twelfth touch electrodes TE9 to TE12 can form a third channel CH3 and can be connected to the ninth to twelfth touch lines TL9 to TL12, which can also be connected to a third multiplexer MUX3. A second touch drive signal TDS2 with a second frequency F2 can be provided to the third multiplexer MUX3.

[0074] The thirteenth to sixteenth touch electrodes TE13 to TE16 can form a fourth channel CH4 and can be connected to the thirteenth to sixteenth touch lines TL13 to TL16, and the thirteenth to sixteenth touch lines TL13 to TL16 can be connected to a fourth multiplexer MUX4. A second touch drive signal TDS2 with a second frequency F2 can be provided to the fourth multiplexer MUX4.

[0075] Each of the multiplexers (MUX) can selectively provide a touch drive signal (TDS) from each of the touch drivers (TIC) to each of the touch lines (TL), and each of the touch lines (TL) can transmit the touch drive signal (TDS) to each of the touch electrodes (TE). For example, each multiplexer (MUX) can selectively provide a touch drive signal (TDS) received from one of the touch drivers (TIC) to the corresponding touch line (TL), and then each touch line (TL) can transmit the touch drive signal (TDS) to its associated touch electrode (TE).

[0076] For example, the first multiplexer MUX1 can provide the first touch drive signal TDS1 to the first touch electrode TE1 through the first touch line TL1, or to the second touch electrode TE2 through the second touch line TL2, or to the third touch electrode TE3 through the third touch line TL3, or to the fourth touch electrode TE4 through the fourth touch line TL4.

[0077] For example, the second multiplexer MUX2 can provide the first touch drive signal TDS1 to the fifth touch electrode TE5 via the fifth touch line TL5, or to the sixth touch electrode TE6 via the sixth touch line TL6, or to the seventh touch electrode TE7 via the seventh touch line TL7, or to the eighth touch electrode TE8 via the eighth touch line TL8.

[0078] For example, the third multiplexer MUX3 can provide the second touch drive signal TDS2 to the ninth touch electrode TE9 via the ninth touch line TL9, or to the tenth touch electrode TE10 via the tenth touch line TL10, or to the eleventh touch electrode TE11 via the eleventh touch line TL11, or to the twelfth touch electrode TE12 via the twelfth touch line TL12.

[0079] For example, the fourth multiplexer MUX4 can provide the second touch drive signal TDS2 to the thirteenth touch electrode TE13 through the thirteenth touch line TL13, or to the fourteenth touch electrode TE14 through the fourteenth touch line TL14, or to the fifteenth touch electrode TE15 through the fifteenth touch line TL15, or to the sixteenth touch electrode TE16 through the sixteenth touch line TL16.

[0080] The touch panel 400 can be divided into a first touch area TA1 provided by a first touch driving signal TDS1 and a second touch area TA2 provided by a second touch driving signal TDS2. The first touch area TA1 and the second touch area TA2 can be arranged adjacent to each other along a row. For example, the first touch area TA1 and the second touch area TA2 can be positioned adjacent to each other in the row direction. For example, the first touch area TA1 may include first to eighth touch electrodes TE1 to TE8, and the second touch area TA2 may include ninth to sixteenth touch electrodes TE9 to TE16.

[0081] refer to Figure 8 According to the comparison example, the first frequency F1 of the first touch driving signal TDS1 is equal to the second frequency F2 of the second touch driving signal TDS2. For example, the first frequency F1 can be 10Hz, and the second frequency F2 can be 10Hz. For example, the period of these signals with a frequency of 10Hz can be 1 / 10 of a second.

[0082] For example, the rising edge timing of the first touch driving signal TDS1 can be equal to the rising edge timing of the second touch driving signal TDS2. Similarly, the falling edge timing of the first touch driving signal TDS1 can be equal to the falling edge timing of the second touch driving signal TDS2. When the rising edge timing of the first touch driving signal TDS1 is equal to the rising edge timing of the second touch driving signal TDS2, or when the falling edge timing of the first touch driving signal TDS1 is equal to the falling edge timing of the second touch driving signal TDS2, electromagnetic interference (EMI) may increase. When the first frequency F1 of the first touch driving signal TDS1 and the second frequency F2 of the second touch driving signal TDS2 have the same frequency of 10Hz, the EMI may increase once every 1 / 10 of a second.

[0083] refer to Figure 9 According to this embodiment, the first frequency F1 of the first touch driving signal TDS1 is different from the second frequency F2 of the second touch driving signal TDS2. For example, the first frequency F1 can be 10Hz, and the second frequency F2 can be 15Hz. The period of a signal with a frequency of 10Hz can be 1 / 10 second, and the period of a signal with a frequency of 15Hz can be 1 / 15 second.

[0084] For example, the rising edge timing of the first touch drive signal TDS1 can be equal to the rising edge timing of the second touch drive signal TDS2. When the rising edge timing of the first touch drive signal TDS1 is equal to the rising edge timing of the second touch drive signal TDS2, electromagnetic interference (EMI) may increase. When the first frequency F1 of the first touch drive signal TDS1 is 10Hz and the second frequency F2 of the second touch drive signal TDS2 is 15Hz, the EMI may increase once every 1 / 5 second.

[0085] It can be seen that when the first frequency F1 of the first touch driving signal TDS1 is equal to the second frequency F2 of the second touch driving signal TDS2, the electromagnetic interference (EMI) is relatively large, while when the first frequency F1 of the first touch driving signal TDS1 is different from the second frequency F2 of the second touch driving signal TDS2, the electromagnetic interference (EMI) is relatively small.

[0086] refer to Figure 10The first frequency F1 of the first touch driving signal TDS1 is different from the second frequency F2 of the second touch driving signal TDS2. For example, the first frequency F1 can be 10Hz, and the second frequency F2 can be 20Hz. The period of the signal with a frequency of 10Hz can be 1 / 10 second, and the period of the signal with a frequency of 20Hz can be 1 / 20 second.

[0087] For example, the rising edge timing of the first touch drive signal TDS1 can be equal to the rising edge timing of the second touch drive signal TDS2. When the rising edge timing of the first touch drive signal TDS1 is equal to the rising edge timing of the second touch drive signal TDS2, electromagnetic interference (EMI) may increase. When the first frequency F1 of the first touch drive signal TDS1 is 10Hz and the second frequency F2 of the second touch drive signal TDS2 is 20Hz, the EMI may increase once every 1 / 10 of a second.

[0088] This shows that even if the first frequency F1 of the first touch driving signal TDS1 is different from the second frequency F2 of the second touch driving signal TDS2, if the least common multiple of the reciprocals of the first frequency F1 and the second frequency F2 is large, the electromagnetic interference (EMI) can be relatively small. This is because the reciprocal of the first frequency F1 represents the period of the first touch driving signal TDS1, and the reciprocal of the second frequency F2 represents the period of the second touch driving signal TDS2. When the least common multiple of these periods is large, the interval between the rising edges of the first touch driving signal TDS1 and the second touch driving signal TDS2 becomes longer, thereby reducing the possibility of simultaneous switching and reducing EMI. Therefore, the first frequency F1 and the second frequency F2 can be selected such that the least common multiple of the reciprocals of the first frequency F1 and the second frequency F2 is large. For example, the first frequency F1 and the second frequency F2 can be selected such that the least common multiple of the reciprocals of the first frequency F1 and the second frequency F2 is greater than a predetermined threshold.

[0089] Therefore, each of the touch drivers TIC in the touch panel driver 300 of the touch module can provide a touch drive signal TDS with a different frequency to the touch panel 400. Furthermore, the touch panel 400 can be a self-pointing touch panel. Therefore, the number of different frequencies can be increased. Thus, even when the size of the touch panel 400 is large, electromagnetic interference (EMI) can be reduced while maintaining high touch performance.

[0090] Each of the touch lines TL can transmit the touch sensing signal TSS to the touch driver TIC via a multiplexer MUX.

[0091] For example, the first touch line TL1 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the first multiplexer MUX1, the second touch line TL2 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the first multiplexer MUX1, the third touch line TL3 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the first multiplexer MUX1, and the fourth touch line TL4 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the first multiplexer MUX1.

[0092] For example, the fifth touch line TL5 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the second multiplexer MUX2, the sixth touch line TL6 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the second multiplexer MUX2, the seventh touch line TL7 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the second multiplexer MUX2, and the eighth touch line TL8 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the second multiplexer MUX2.

[0093] For example, the ninth touch line TL9 can transmit the second touch sensing signal TSS2 to the second touch driver TIC2 through the third multiplexer MUX3, the tenth touch line TL10 can transmit the second touch sensing signal TSS2 to the second touch driver TIC2 through the third multiplexer MUX3, the eleventh touch line TL11 can transmit the second touch sensing signal TSS2 to the second touch driver TIC2 through the third multiplexer MUX3, and the twelfth touch line TL12 can transmit the second touch sensing signal TSS2 to the second touch driver TIC2 through the third multiplexer MUX3.

[0094] For example, the thirteenth touch line TL13 can transmit the second touch sensing signal TSS2 to the second touch driver TIC2 through the fourth multiplexer MUX4, the fourteenth touch line TL14 can transmit the second touch sensing signal TSS2 to the second touch driver TIC2 through the fourth multiplexer MUX4, the fifteenth touch line TL15 can transmit the second touch sensing signal TSS2 to the second touch driver TIC2 through the fourth multiplexer MUX4, and the sixteenth touch line TL16 can transmit the second touch sensing signal TSS2 to the second touch driver TIC2 through the fourth multiplexer MUX4.

[0095] Figure 11 It is shown Figure 3 A diagram illustrating an example of how the touch module operates. Figure 12 This shows the first to fourth touch areas, TA1 to TA4. Figure 11 The image shows the touch panel 400.

[0096] refer to Figure 11 and Figure 12 The touch module may include a touch panel driver 300 and a touch panel 400.

[0097] The touch panel driver 300 may include a touch driver TIC. For example, the touch driver TIC may include a first touch driver TIC1 and a second touch driver TIC2. The first touch driver TIC1 may provide the touch panel 400 with a first touch drive signal TDS1 having a first frequency F1 and a second touch drive signal TDS2 having a second frequency F2. The second touch driver TIC2 may provide the touch panel 400 with a third touch drive signal TDS3 having a third frequency F3 and a fourth touch drive signal TDS4 having a fourth frequency F4. In one embodiment, frequencies F1, F2, F3, and F4 are all different from each other. In another embodiment, the second frequency F2 is different from the first frequency F1 and the third frequency F3, and the fourth frequency F4 is the same as the first frequency F1.

[0098] The touch panel 400 can be a self-contained touch panel. The self-contained touch panel 400 may include touch electrodes TE, touch lines TL connected to the touch electrodes TE, and multiplexers MUX connected to the touch lines TL. For example, the touch electrodes TE may include first to sixteenth touch electrodes TE1 to TE16. For example, the touch lines TL may include first to sixteenth touch lines TL1 to TL16. For example, the multiplexers MUX may include first to fourth multiplexers MUX1 to MUX4.

[0099] The first to fourth touch electrodes TE1 to TE4 can form a first channel CH1 and can be connected to the first to fourth touch lines TL1 to TL4, and the first to fourth touch lines TL1 to TL4 can be connected to a first multiplexer MUX1. A first touch drive signal TDS1 with a first frequency F1 can be provided to the first multiplexer MUX1.

[0100] The fifth to eighth touch electrodes TE5 to TE8 can form a second channel CH2 and can be connected to the fifth to eighth touch lines TL5 to TL8, and the fifth to eighth touch lines TL5 to TL8 can be connected to the second multiplexer MUX2. A second touch drive signal TDS2 with a second frequency F2 can be provided to the second multiplexer MUX2.

[0101] The ninth to twelfth touch electrodes TE9 to TE12 can form a third channel CH3 and can be connected to the ninth to twelfth touch lines TL9 to TL12, which can also be connected to a third multiplexer MUX3. A third touch drive signal TDS3 with a third frequency F3 can be provided to the third multiplexer MUX3.

[0102] The thirteenth to sixteenth touch electrodes TE13 to TE16 can form a fourth channel CH4 and can be connected to the thirteenth to sixteenth touch lines TL13 to TL16, and the thirteenth to sixteenth touch lines TL13 to TL16 can be connected to a fourth multiplexer MUX4. A fourth touch drive signal TDS4 with a fourth frequency F4 can be provided to the fourth multiplexer MUX4.

[0103] Each of the multiplexers MUX can selectively provide the touch drive signal TDS from each of the touch drivers TIC to each of the touch lines TL, and each of the touch lines TL can transmit the touch drive signal TDS to each of the touch electrodes TE.

[0104] For example, the first multiplexer MUX1 can provide the first touch drive signal TDS1 to the first touch electrode TE1 through the first touch line TL1, or to the second touch electrode TE2 through the second touch line TL2, or to the third touch electrode TE3 through the third touch line TL3, or to the fourth touch electrode TE4 through the fourth touch line TL4.

[0105] For example, the second multiplexer MUX2 can provide the second touch drive signal TDS2 to the fifth touch electrode TE5 via the fifth touch line TL5, or to the sixth touch electrode TE6 via the sixth touch line TL6, or to the seventh touch electrode TE7 via the seventh touch line TL7, or to the eighth touch electrode TE8 via the eighth touch line TL8.

[0106] For example, the third multiplexer MUX3 can provide the third touch drive signal TDS3 to the ninth touch electrode TE9 via the ninth touch line TL9, or to the tenth touch electrode TE10 via the tenth touch line TL10, or to the eleventh touch electrode TE11 via the eleventh touch line TL11, or to the twelfth touch electrode TE12 via the twelfth touch line TL12.

[0107] For example, the fourth multiplexer MUX4 can provide the fourth touch drive signal TDS4 to the thirteenth touch electrode TE13 through the thirteenth touch line TL13, or to the fourteenth touch electrode TE14 through the fourteenth touch line TL14, or to the fifteenth touch electrode TE15 through the fifteenth touch line TL15, or to the sixteenth touch electrode TE16 through the sixteenth touch line TL16.

[0108] The touch panel 400 can be divided into a first touch area TA1 provided by a first touch driving signal TDS1, a second touch area TA2 provided by a second touch driving signal TDS2, a third touch area TA3 provided by a third touch driving signal TDS3, and a fourth touch area TA4 provided by a fourth touch driving signal TDS4. The first to fourth touch areas TA1 to TA4 can be arranged adjacent to each other along a row or in a row direction. For example, the first touch area TA1 may include the first to fourth touch electrodes TE1 to TE4, the second touch area TA2 may include the fifth to eighth touch electrodes TE5 to TE8, the third touch area TA3 may include the ninth to twelfth touch electrodes TE9 to TE12, and the fourth touch area TA4 may include the thirteenth to sixteenth touch electrodes TE13 to TE16.

[0109] The first touch driver TIC1 can generate a first touch drive signal TDS1 to provide to the first touch area TA1, and then generate a second touch drive signal TDS2 to provide to the second touch area TA2. The second touch driver TIC2 can generate a third touch drive signal TDS3 to provide to the third touch area TA3, and then generate a fourth touch drive signal TDS4 to provide to the fourth touch area TA4. In this way, a single touch driver can sequentially generate touch drive signals of different frequencies for each touch area at different times.

[0110] Each of the touch lines TL can transmit the touch sensing signal TSS to the touch driver TIC via a multiplexer MUX.

[0111] For example, the first touch line TL1 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the first multiplexer MUX1, the second touch line TL2 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the first multiplexer MUX1, the third touch line TL3 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the first multiplexer MUX1, and the fourth touch line TL4 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the first multiplexer MUX1.

[0112] For example, the fifth touch line TL5 can transmit the second touch sensing signal TSS2 to the first touch driver TIC1 through the second multiplexer MUX2, the sixth touch line TL6 can transmit the second touch sensing signal TSS2 to the first touch driver TIC1 through the second multiplexer MUX2, the seventh touch line TL7 can transmit the second touch sensing signal TSS2 to the first touch driver TIC1 through the second multiplexer MUX2, and the eighth touch line TL8 can transmit the second touch sensing signal TSS2 to the first touch driver TIC1 through the second multiplexer MUX2.

[0113] For example, the ninth touch line TL9 can transmit the third touch sensing signal TSS3 to the second touch driver TIC2 through the third multiplexer MUX3, the tenth touch line TL10 can transmit the third touch sensing signal TSS3 to the second touch driver TIC2 through the third multiplexer MUX3, the eleventh touch line TL11 can transmit the third touch sensing signal TSS3 to the second touch driver TIC2 through the third multiplexer MUX3, and the twelfth touch line TL12 can transmit the third touch sensing signal TSS3 to the second touch driver TIC2 through the third multiplexer MUX3.

[0114] For example, the thirteenth touch line TL13 can transmit the fourth touch sensing signal TSS4 to the second touch driver TIC2 through the fourth multiplexer MUX4, the fourteenth touch line TL14 can transmit the fourth touch sensing signal TSS4 to the second touch driver TIC2 through the fourth multiplexer MUX4, the fifteenth touch line TL15 can transmit the fourth touch sensing signal TSS4 to the second touch driver TIC2 through the fourth multiplexer MUX4, and the sixteenth touch line TL16 can transmit the fourth touch sensing signal TSS4 to the second touch driver TIC2 through the fourth multiplexer MUX4.

[0115] Therefore, each of the touch drivers TICs in the touch panel driver 300 of the touch module can provide a touch drive signal TDS with a different frequency to the touch panel 400. Furthermore, the touch panel 400 can be a self-pointing touch panel. Therefore, the number of different frequencies can be increased. Thus, even when using a large touch panel 400, electromagnetic interference (EMI) can be reduced while maintaining high touch performance.

[0116] Figure 13 It is shown Figure 3 A diagram illustrating an example of how the touch module operates. Figure 14 This shows the first to fourth touch areas, TA1 to TA4. Figure 13 The image shows the touch panel 400.

[0117] refer to Figure 13 and Figure 14 The touch module may include a touch panel driver 300 and a touch panel 400.

[0118] The touch panel driver 300 may include a touch driver TIC. For example, the touch driver TIC may include a first touch driver TIC1 and a second touch driver TIC2. The first touch driver TIC1 may provide the touch panel 400 with a first touch drive signal TDS1 having a first frequency F1 and a third touch drive signal TDS3 having a third frequency F3. The second touch driver TIC2 may provide the touch panel 400 with a second touch drive signal TDS2 having a second frequency F2 and a fourth touch drive signal TDS4 having a fourth frequency F4.

[0119] The touch panel 400 can be a self-contained touch panel. The self-contained touch panel 400 may include touch electrodes TE, touch lines TL connected to the touch electrodes TE, and multiplexers MUX connected to the touch lines TL. For example, the touch electrodes TE may include first to sixteenth touch electrodes TE1 to TE16. For example, the touch lines TL may include first to sixteenth touch lines TL1 to TL16. For example, the multiplexers MUX may include first to fourth multiplexers MUX1 to MUX4.

[0120] The first to fourth touch electrodes TE1 to TE4 can form a first channel CH1 and can be connected to the first to fourth touch lines TL1 to TL4, and the first to fourth touch lines TL1 to TL4 can be connected to a first multiplexer MUX1. A first touch drive signal TDS1 with a first frequency F1 and a third touch drive signal TDS3 with a third frequency F3 can be provided to the first multiplexer MUX1.

[0121] The fifth to eighth touch electrodes TE5 to TE8 can form a second channel CH2 and can be connected to the fifth to eighth touch lines TL5 to TL8, and the fifth to eighth touch lines TL5 to TL8 can be connected to the second multiplexer MUX2. A first touch drive signal TDS1 with a first frequency F1 and a third touch drive signal TDS3 with a third frequency F3 can be provided to the second multiplexer MUX2.

[0122] The ninth to twelfth touch electrodes TE9 to TE12 can form a third channel CH3 and can be connected to the ninth to twelfth touch lines TL9 to TL12, which can also be connected to a third multiplexer MUX3. A second touch drive signal TDS2 with a second frequency F2 and a fourth touch drive signal TDS4 with a fourth frequency F4 can be provided to the third multiplexer MUX3.

[0123] The thirteenth to sixteenth touch electrodes TE13 to TE16 can form a fourth channel CH4 and can be connected to the thirteenth to sixteenth touch lines TL13 to TL16, and the thirteenth to sixteenth touch lines TL13 to TL16 can be connected to a fourth multiplexer MUX4. A second touch drive signal TDS2 with a second frequency F2 and a fourth touch drive signal TDS4 with a fourth frequency F4 can be provided to the fourth multiplexer MUX4.

[0124] Each of the multiplexers MUX can selectively provide the touch drive signal TDS from each of the touch drivers TIC to each of the touch lines TL, and each of the touch lines TL can transmit the touch drive signal TDS to each of the touch electrodes TE.

[0125] For example, the first multiplexer MUX1 can provide the first touch drive signal TDS1 to the first touch electrode TE1 through the first touch line TL1, or provide the first touch drive signal TDS1 to the second touch electrode TE2 through the second touch line TL2, or provide the third touch drive signal TDS3 to the third touch electrode TE3 through the third touch line TL3, or provide the third touch drive signal TDS3 to the fourth touch electrode TE4 through the fourth touch line TL4.

[0126] For example, the second multiplexer MUX2 can provide the first touch drive signal TDS1 to the fifth touch electrode TE5 via the fifth touch line TL5, or to the sixth touch electrode TE6 via the sixth touch line TL6, or to the seventh touch electrode TE7 via the seventh touch line TL7, or to the eighth touch electrode TE8 via the eighth touch line TL8.

[0127] For example, the third multiplexer MUX3 can provide the second touch drive signal TDS2 to the ninth touch electrode TE9 via the ninth touch line TL9, or provide the second touch drive signal TDS2 to the tenth touch electrode TE10 via the tenth touch line TL10, or provide the fourth touch drive signal TDS4 to the eleventh touch electrode TE11 via the eleventh touch line TL11, or provide the fourth touch drive signal TDS4 to the twelfth touch electrode TE12 via the twelfth touch line TL12.

[0128] For example, the fourth multiplexer MUX4 can provide the second touch drive signal TDS2 to the thirteenth touch electrode TE13 through the thirteenth touch line TL13, or provide the second touch drive signal TDS2 to the fourteenth touch electrode TE14 through the fourteenth touch line TL14, or provide the fourth touch drive signal TDS4 to the fifteenth touch electrode TE15 through the fifteenth touch line TL15, or provide the fourth touch drive signal TDS4 to the sixteenth touch electrode TE16 through the sixteenth touch line TL16.

[0129] The touch panel 400 can be divided into a first touch area TA1 provided by a first touch driving signal TDS1, a second touch area TA2 provided by a second touch driving signal TDS2, a third touch area TA3 provided by a third touch driving signal TDS3, and a fourth touch area TA4 provided by a fourth touch driving signal TDS4. The first touch area TA1 and the second touch area TA2 can be arranged adjacent to each other along a row or in a row-wise direction. The third touch area TA3 and the fourth touch area TA4 can be arranged adjacent to each other along a row or in a row-wise direction. The first touch area TA1 and the third touch area TA3 can be arranged adjacent to each other along a column or in a column-wise direction. The first to fourth touch areas TA1, TA2, TA3, and TA4 can be arranged in a 2×2 grid configuration, with the first touch area TA1 and the second touch area TA2 located side-by-side in the first row, and the third touch area TA3 and the fourth touch area TA4 located side-by-side in the second row below them.

[0130] For example, the first touch area TA1 may include the first, second, fifth and sixth touch electrodes TE1, TE2, TE5 and TE6; the second touch area TA2 may include the ninth, tenth, thirteenth and fourteenth touch electrodes TE9, TE10, TE13 and TE14; the third touch area TA3 may include the third, fourth, seventh and eighth touch electrodes TE3, TE4, TE7 and TE8; and the fourth touch area TA4 may include the eleventh, twelfth, fifteenth and sixteenth touch electrodes TE11, TE12, TE15 and TE16.

[0131] The first touch driver TIC1 can generate a first touch drive signal TDS1 to provide the first touch drive signal TDS1 to the first touch electrode TE1 and the second touch electrode TE2 of the first touch area TA1, and then generate a third touch drive signal TDS3 to provide the third touch drive signal TDS3 to the third touch electrode TE3 and the fourth touch electrode TE4 of the third touch area TA3. The first touch driver TIC1 can also generate a first touch drive signal TDS1 to provide the first touch drive signal TDS1 to the fifth touch electrode TE5 and the sixth touch electrode TE6 of the first touch area TA1, and then generate a third touch drive signal TDS3 to provide the third touch drive signal TDS3 to the seventh touch electrode TE7 and the eighth touch electrode TE8 of the third touch area TA3. The second touch driver TIC2 can generate a second touch drive signal TDS2 to provide the second touch drive signal TDS2 to the ninth touch electrode TE9 and the tenth touch electrode TE10 of the second touch area TA2, and then generate a fourth touch drive signal TDS4 to provide the fourth touch drive signal TDS4 to the eleventh touch electrode TE11 and the twelfth touch electrode TE12 of the fourth touch area TA4. The second touch driver TIC2 can generate a second touch drive signal TDS2 to provide to the thirteenth touch electrode TE13 and the fourteenth touch electrode TE14 of the second touch area TA2, and then generate a fourth touch drive signal TDS4 to provide to the fifteenth touch electrode TE15 and the sixteenth touch electrode TE16 of the fourth touch area TA4. In this way, a single touch driver can generate touch drive signals of different frequencies at different times and provide each touch drive signal to a different touch area.

[0132] Each of the touch lines TL can transmit the touch sensing signal TSS to the touch driver TIC via a multiplexer MUX.

[0133] For example, the first touch line TL1 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the first multiplexer MUX1, the second touch line TL2 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the first multiplexer MUX1, the third touch line TL3 can transmit the third touch sensing signal TSS3 to the first touch driver TIC1 through the first multiplexer MUX1, and the fourth touch line TL4 can transmit the third touch sensing signal TSS3 to the first touch driver TIC1 through the first multiplexer MUX1.

[0134] For example, the fifth touch line TL5 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the second multiplexer MUX2, the sixth touch line TL6 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the second multiplexer MUX2, the seventh touch line TL7 can transmit the third touch sensing signal TSS3 to the first touch driver TIC1 through the second multiplexer MUX2, and the eighth touch line TL8 can transmit the third touch sensing signal TSS3 to the first touch driver TIC1 through the second multiplexer MUX2.

[0135] For example, the ninth touch line TL9 can transmit the second touch sensing signal TSS2 to the second touch driver TIC2 through the third multiplexer MUX3, the tenth touch line TL10 can transmit the second touch sensing signal TSS2 to the second touch driver TIC2 through the third multiplexer MUX3, the eleventh touch line TL11 can transmit the fourth touch sensing signal TSS4 to the second touch driver TIC2 through the third multiplexer MUX3, and the twelfth touch line TL12 can transmit the fourth touch sensing signal TSS4 to the second touch driver TIC2 through the third multiplexer MUX3.

[0136] For example, the thirteenth touch line TL13 can transmit the second touch sensing signal TSS2 to the second touch driver TIC2 through the fourth multiplexer MUX4, the fourteenth touch line TL14 can transmit the second touch sensing signal TSS2 to the second touch driver TIC2 through the fourth multiplexer MUX4, the fifteenth touch line TL15 can transmit the fourth touch sensing signal TSS4 to the second touch driver TIC2 through the fourth multiplexer MUX4, and the sixteenth touch line TL16 can transmit the fourth touch sensing signal TSS4 to the second touch driver TIC2 through the fourth multiplexer MUX4.

[0137] Therefore, each of the touch drivers TICs in the touch panel driver 300 of the touch module can provide a touch drive signal TDS with a different frequency to the touch panel 400. Furthermore, the touch panel 400 can be a self-pointing touch panel. Therefore, the number of different frequencies can be increased. Thus, while maintaining a large touch panel size and high touch functionality, electromagnetic interference (EMI) can be reduced.

[0138] Figure 15 It is shown Figure 3 A diagram illustrating an example of how the touch module operates. Figure 16 This shows the touch areas divided into first to eighth zones, TA1 to TA8. Figure 15 The image shows the touch panel 400.

[0139] refer to Figure 15 and Figure 16 The touch module may include a touch panel driver 300 and a touch panel 400.

[0140] The touch panel driver 300 may include a touch driver TIC. For example, the touch driver TIC may include a first touch driver TIC1 and a second touch driver TIC2. The first touch driver TIC1 may provide the touch panel 400 with a first touch drive signal TDS1 having a first frequency F1, a second touch drive signal TDS2 having a second frequency F2, a fifth touch drive signal TDS5 having a fifth frequency F5, and a sixth touch drive signal TDS6 having a sixth frequency F6. The second touch driver TIC2 may provide the touch panel 400 with a third touch drive signal TDS3 having a third frequency F3, a fourth touch drive signal TDS4 having a fourth frequency F4, a seventh touch drive signal TDS7 having a seventh frequency F7, and an eighth touch drive signal TDS8 having an eighth frequency F8.

[0141] The touch panel 400 can be a self-contained touch panel. The self-contained touch panel 400 may include touch electrodes TE, touch lines TL connected to the touch electrodes TE, and multiplexers MUX connected to the touch lines TL. For example, the touch electrodes TE may include first to sixteenth touch electrodes TE1 to TE16. For example, the touch lines TL may include first to sixteenth touch lines TL1 to TL16. For example, the multiplexers MUX may include first to fourth multiplexers MUX1 to MUX4.

[0142] The first to fourth touch electrodes TE1 to TE4 can form a first channel CH1 and can be connected to the first to fourth touch lines TL1 to TL4, and the first to fourth touch lines TL1 to TL4 can be connected to a first multiplexer MUX1. A first touch drive signal TDS1 with a first frequency F1 and a fifth touch drive signal TDS5 with a fifth frequency F5 can be provided to the first multiplexer MUX1.

[0143] The fifth to eighth touch electrodes TE5 to TE8 can form a second channel CH2 and can be connected to the fifth to eighth touch lines TL5 to TL8, which can also be connected to the second multiplexer MUX2. A second touch drive signal TDS2 with a second frequency F2 and a sixth touch drive signal TDS6 with a sixth frequency F6 can be provided to the second multiplexer MUX2.

[0144] The ninth to twelfth touch electrodes TE9 to TE12 can form a third channel CH3 and can be connected to the ninth to twelfth touch lines TL9 to TL12, which can also be connected to a third multiplexer MUX3. A third touch drive signal TDS3 with a third frequency F3 and a seventh touch drive signal TDS7 with a seventh frequency F7 can be provided to the third multiplexer MUX3.

[0145] The thirteenth to sixteenth touch electrodes TE13 to TE16 can form the fourth channel CH4 and can be connected to the thirteenth to sixteenth touch lines TL13 to TL16, and the thirteenth to sixteenth touch lines TL13 to TL16 can be connected to the fourth multiplexer MUX4. The fourth touch drive signal TDS4 with a fourth frequency F4 and the eighth touch drive signal TDS8 with an eighth frequency F8 can be provided to the fourth multiplexer MUX4.

[0146] Each of the multiplexers MUX can selectively provide the touch drive signal TDS from each of the touch drivers TIC to each of the touch lines TL, and each of the touch lines TL can transmit the touch drive signal TDS to each of the touch electrodes TE.

[0147] For example, the first multiplexer MUX1 can provide a first touch drive signal TDS1 to the first touch electrode TE1 through the first touch line TL1, or provide a first touch drive signal TDS1 to the second touch electrode TE2 through the second touch line TL2, or provide a fifth touch drive signal TDS5 to the third touch electrode TE3 through the third touch line TL3, or provide a fifth touch drive signal TDS5 to the fourth touch electrode TE4 through the fourth touch line TL4.

[0148] For example, the second multiplexer MUX2 can provide the second touch drive signal TDS2 to the fifth touch electrode TE5 via the fifth touch line TL5, or to the sixth touch electrode TE6 via the sixth touch line TL6, or to the seventh touch electrode TE7 via the seventh touch line TL7, or to the eighth touch electrode TE8 via the eighth touch line TL8.

[0149] For example, the third multiplexer MUX3 can provide the third touch drive signal TDS3 to the ninth touch electrode TE9 via the ninth touch line TL9, or to the tenth touch electrode TE10 via the tenth touch line TL10, or to the eleventh touch electrode TE11 via the eleventh touch line TL11, or to the twelfth touch electrode TE12 via the twelfth touch line TL12.

[0150] For example, the fourth multiplexer MUX4 can provide the fourth touch drive signal TDS4 to the thirteenth touch electrode TE13 through the thirteenth touch line TL13, the fourth touch drive signal TDS4 to the fourteenth touch electrode TE14 through the fourteenth touch line TL14, the eighth touch drive signal TDS8 to the fifteenth touch electrode TE15 through the fifteenth touch line TL15, or the eighth touch drive signal TDS8 to the sixteenth touch electrode TE16 through the sixteenth touch line TL16.

[0151] The touch panel 400 can be divided into a first touch area TA1 provided by a first touch driving signal TDS1, a second touch area TA2 provided by a second touch driving signal TDS2, a third touch area TA3 provided by a third touch driving signal TDS3, a fourth touch area TA4 provided by a fourth touch driving signal TDS4, a fifth touch area TA5 provided by a fifth touch driving signal TDS5, a sixth touch area TA6 provided by a sixth touch driving signal TDS6, a seventh touch area TA7 provided by a seventh touch driving signal TDS7, and an eighth touch area TA8 provided by an eighth touch driving signal TDS8. The first to fourth touch areas TA1 to TA4 can be arranged adjacent to each other along a row or in a row direction. The fifth to eighth touch areas TA5 to TA8 can be arranged adjacent to each other along a row or in a row direction. The first touch area TA1 and the fifth touch area TA5 can be arranged adjacent to each other along a column or in a column direction. The second touch area TA2 and the sixth touch area TA6 can be arranged adjacent to each other along a column or in a column direction. The third touch area TA3 and the seventh touch area TA7 can be arranged adjacent to each other along a column or in a column direction. The fourth touch area TA4 and the eighth touch area TA8 can be arranged adjacent to each other along a column or column direction. For example, the first to eighth touch areas TA1 to TA8 can be arranged in a 2×4 grid configuration, with the first to fourth touch areas TA1 to TA4 forming the first row, and the fifth to eighth touch areas TA5 to TA8 forming the second row below the first row.

[0152] For example, the first touch area TA1 may include the first touch electrode TE1 and the second touch electrode TE2; the second touch area TA2 may include the fifth touch electrode TE5 and the sixth touch electrode TE6; the third touch area TA3 may include the ninth touch electrode TE9 and the tenth touch electrode TE10; the fourth touch area TA4 may include the thirteenth touch electrode TE13 and the fourteenth touch electrode TE14; the fifth touch area TA5 may include the third touch electrode TE3 and the fourth touch electrode TE4; the sixth touch area TA6 may include the seventh touch electrode TE7 and the eighth touch electrode TE8; the seventh touch area TA7 may include the eleventh touch electrode TE11 and the twelfth touch electrode TE12; and the eighth touch area TA8 may include the fifteenth touch electrode TE15 and the sixteenth touch electrode TE16.

[0153] The first touch driver TIC1 can generate a first touch drive signal TDS1 to provide the first touch electrode TE1 and the second touch electrode TE2 of the first touch area TA1, and then generate a fifth touch drive signal TDS5 to provide the third touch electrode TE3 and the fourth touch electrode TE4 of the fifth touch area TA5. The first touch driver TIC1 can generate a second touch drive signal TDS2 to provide the fifth touch electrode TE5 and the sixth touch electrode TE6 of the second touch area TA2, and then generate a sixth touch drive signal TDS6 to provide the seventh touch electrode TE7 and the eighth touch electrode TE8 of the sixth touch area TA6. The second touch driver TIC2 can generate a third touch drive signal TDS3 to provide the ninth touch electrode TE9 and the tenth touch electrode TE10 of the third touch area TA3, and then generate a seventh touch drive signal TDS7 to provide the eleventh touch electrode TE11 and the twelfth touch electrode TE12 of the seventh touch area TA7. The second touch driver TIC2 can generate a fourth touch drive signal TDS4 to provide to the thirteenth touch electrode TE13 and the fourteenth touch electrode TE14 of the fourth touch area TA4, and then generate an eighth touch drive signal TDS8 to provide to the fifteenth touch electrode TE15 and the sixteenth touch electrode TE16 of the eighth touch area TA8. In this way, a single touch driver can sequentially generate touch drive signals of different frequencies at different times and apply each touch drive signal to a different touch area.

[0154] Each of the touch lines TL can transmit the touch sensing signal TSS to the touch driver TIC via a multiplexer MUX.

[0155] For example, the first touch line TL1 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the first multiplexer MUX1, the second touch line TL2 can transmit the first touch sensing signal TSS1 to the first touch driver TIC1 through the first multiplexer MUX1, the third touch line TL3 can transmit the fifth touch sensing signal TSS5 to the first touch driver TIC1 through the first multiplexer MUX1, and the fourth touch line TL4 can transmit the fifth touch sensing signal TSS5 to the first touch driver TIC1 through the first multiplexer MUX1.

[0156] For example, the fifth touch line TL5 can transmit the second touch sensing signal TSS2 to the first touch driver TIC1 through the second multiplexer MUX2, the sixth touch line TL6 can transmit the second touch sensing signal TSS2 to the first touch driver TIC1 through the second multiplexer MUX2, the seventh touch line TL7 can transmit the sixth touch sensing signal TSS6 to the first touch driver TIC1 through the second multiplexer MUX2, and the eighth touch line TL8 can transmit the sixth touch sensing signal TSS6 to the first touch driver TIC1 through the second multiplexer MUX2.

[0157] For example, the ninth touch line TL9 can transmit the third touch sensing signal TSS3 to the second touch driver TIC2 through the third multiplexer MUX3, the tenth touch line TL10 can transmit the third touch sensing signal TSS3 to the second touch driver TIC2 through the third multiplexer MUX3, the eleventh touch line TL11 can transmit the seventh touch sensing signal TSS7 to the second touch driver TIC2 through the third multiplexer MUX3, and the twelfth touch line TL12 can transmit the seventh touch sensing signal TSS7 to the second touch driver TIC2 through the third multiplexer MUX3.

[0158] For example, the thirteenth touch line TL13 can transmit the fourth touch sensing signal TSS4 to the second touch driver TIC2 through the fourth multiplexer MUX4, the fourteenth touch line TL14 can transmit the fourth touch sensing signal TSS4 to the second touch driver TIC2 through the fourth multiplexer MUX4, the fifteenth touch line TL15 can transmit the eighth touch sensing signal TSS8 to the second touch driver TIC2 through the fourth multiplexer MUX4, and the sixteenth touch line TL16 can transmit the eighth touch sensing signal TSS8 to the second touch driver TIC2 through the fourth multiplexer MUX4.

[0159] Therefore, each of the touch drivers TIC in the touch panel driver 300 of the touch module can provide a touch drive signal TDS with a different frequency to the touch panel 400. Furthermore, the touch panel 400 can be a self-pointing touch panel. Therefore, the number of different frequencies can be increased. Thus, even when the touch panel 400 is large, electromagnetic interference (EMI) can be reduced while maintaining high touch performance.

[0160] Figure 17 This is a graph showing the variation of EMI based on the frequency of the touch drive signal TDS.

[0161] refer to Figure 17For example, the first touch driver TIC1 can generate a first touch drive signal TDS1 with a first frequency F1, and the second touch driver TIC2 can generate a second touch drive signal TDS2 with a second frequency F2.

[0162] Figure 17 The left figure illustrates the case where the first frequency F1 equals the second frequency F2, and Figure 17 The right-hand figure illustrates a case where the first frequency F1 differs from the second frequency F2. The left and right figures include the peak value PK and the average value AV.

[0163] When comparing the left and right graphs, the EMI peak value of peak PK and the EMI peak value of average AV in the left graph can be greater than the EMI peak value of peak PK and the EMI peak value of average AV in the right graph.

[0164] Therefore, when each of the touch drivers TIC in the touch panel driver 300 of the touch module provides a touch drive signal TDS with a different frequency to the touch panel 400, electromagnetic interference (EMI) can be reduced.

[0165] As described above, in this embodiment, the touch panel 400 may be a self-contained touch panel rather than a mutual-capacitance touch panel. This may be due to the limitations of mutual-capacitance touch panels.

[0166] Return to reference Figure 2 As described above, a mutual capacitive touch panel may include transmitting touch electrode lines TX and receiving touch electrode lines RX. For example, the transmitting touch electrode lines TX may extend along a row, and the receiving touch electrode lines RX may extend along a column. Each of the transmitting touch electrode lines TX may form a touch capacitor with each of the receiving touch electrode lines RX. Therefore, due to the structure of each of the transmitting touch electrode lines TX, all the touch capacitors formed along a given row share the same transmitting touch electrode line TX and inevitably receive the same touch drive signal. Therefore, a mutual capacitive touch panel cannot provide different touch drive signals along a row, but can provide different touch drive signals along a column.

[0167] On the other hand, in the self-pointing touch panel 400, each of the touch electrodes TE is connected to each of the different touch lines TL. Therefore, the self-pointing touch panel 400 can provide different touch drive signals along the column and different touch drive signals along the row. That is, the self-pointing touch panel 400 can provide touch drive signals TDS with different frequencies along the row and column.

[0168] Therefore, in this embodiment, when the touch panel 400 is a self-contained type rather than a mutual capacitance type, the touch module can use touch drive signals TDS with more different frequencies. As the number of different frequencies increases, electromagnetic interference (EMI) can be reduced. Therefore, EMI can be further reduced.

[0169] Figure 18 This is a block diagram showing the electronic device 1000. Figure 19 It is shown Figure 18 The figure shows an embodiment of the electronic device 1000 implemented as a vehicle window.

[0170] refer to Figure 18 and Figure 19 The electronic device 1000 may include a processor 1010, a memory device 1020, a storage device 1030, an input / output (I / O) device 1040, a power supply 1050, and a display device 1060. The display device 1060 may be... Figure 1 The display device 10. Furthermore, the electronic device 1000 may further include multiple ports for communicating with video cards, sound cards, memory cards, universal serial bus (USB) devices, and other electronic devices.

[0171] In an embodiment, such as Figure 19 As shown, the electronic device 1000 can be implemented as a vehicle window. However, the electronic device 1000 is not limited to this. For example, the electronic device 1000 can be implemented as a cellular phone, video phone, smart tablet, smartphone, tablet PC, car navigation system, computer monitor, laptop computer, and head-mounted display (HMD) device, etc.

[0172] Processor 1010 can perform various computing functions. Processor 1010 can be a microprocessor, central processing unit (CPU), application processor (AP), etc. Processor 1010 can be coupled to other components via address bus, control bus, and data bus, etc. In addition, processor 1010 can be coupled to an expansion bus such as the peripheral component interconnect (PCI) bus.

[0173] The memory device 1020 can store data for the operation of the electronic device 1000. For example, the memory device 1020 may include at least one non-volatile memory device such as an erasable programmable read-only memory (EPROM) device, an electrically erasable programmable read-only memory (EEPROM) device, a flash memory device, a phase-change random access memory (PRAM) device, a resistive random access memory (RRAM) device, a nano-floating gate memory (NFGM) device, a polymer random access memory (PoRAM) device, a magnetic random access memory (MRAM) device, and a ferroelectric random access memory (FRAM) device, and / or at least one volatile memory device such as a dynamic random access memory (DRAM) device, a static random access memory (SRAM) device, and a mobile DRAM device.

[0174] Storage device 1030 may include solid-state drive (SSD) devices, hard disk drive (HDD) devices, and CD-ROM devices, etc.

[0175] I / O device 1040 may include input devices such as a keyboard, keypad, mouse, touchpad, and touchscreen, and output devices such as a printer and speaker. In some embodiments, I / O device 1040 may include display device 1060.

[0176] Power supply 1050 can provide power for the operation of electronic device 1000.

[0177] The display device 1060 can be connected to other components via a bus or other communication link.

[0178] Figure 20 This is a diagram illustrating an electronic device 1000 according to an embodiment of the present invention. (Reference) Figure 20 According to an embodiment of the present invention, the electronic device 1000 can output various information (e.g., images, text, music, etc.) through the display module 1140, which can, for example, correspond to... Figure 1 The display device 10 is shown in the figure. When the processor 1110 (e.g., processor 1010) executes an application stored in the memory 1120 (e.g., memory device 1020), the display module 1140 (e.g., display device 1060) can provide application information to the user through the display panel 1141.

[0179] In some embodiments, electronic device 1000 may be configured as a smartphone, camera, smart TV, monitor, smartwatch, tablet computer, automotive display, or AR / VR headset. For example, electronic device 1000 may be a smartphone including a touch-sensitive display area for interaction and a non-display area containing sensors and circuitry for enhanced functionality. For example, electronic device 1000 may be a television or monitor including a large display area for high-resolution video playback and a non-display area containing drive circuitry or connection modules for external input. For example, electronic device 1000 may be a smartwatch including a display area optimized for compact and high-definition visual effects and a non-display area integrating biometric sensors for health monitoring. In some cases, electronic device 1000 may be AR / VR headset.

[0180] In some embodiments, memory 1120 may store information such as software code for operating application 1123. Application 1123 may include software designed to perform specific tasks or provide functionality to a user. Application 1123 may operate under the control of processor 1110 and utilize data stored in memory 1120 to provide a wide range of functions such as productivity tools, multimedia streaming and playback, file or email delivery, or communication services. Application 1123 interacts seamlessly with user interface 1161 or touchscreen 1142, allowing users to launch, navigate, and utilize the program through user input such as touch, click, gestures, or voice interaction.

[0181] After a user selects an application via touchscreen 1142 or user interface 1161, processor 1110 can execute application program 1123 corresponding to the selected application retrieved from memory 1120 to perform the application's functions. For example, when a user selects a camera application by clicking an icon (or camera application icon) presented on display panel 1141, processor 1110 activates the camera module. Processor 1110 can then send image data corresponding to a captured image obtained by the camera module to display module 1140. Display module 1140 can then display the image corresponding to the captured image via display panel 1141.

[0182] As another example, when a user wishes to make a phone call, the user clicks the phone icon displayed on display module 1140, and processor 1110 can execute a phone application stored in memory 1120. A phone keypad can be displayed on display panel 1141 for the user to enter the phone number to call.

[0183] As another example, the display module 1140 can be integrated into an electronic device 1000 such as a laptop computer, smart TV, or tablet computer. Users wishing to access multimedia streaming applications (e.g., to watch music videos or movies) can do so by clicking the corresponding icon. This action activates the application, allowing the user to watch streaming content.

[0184] Processor 1110 may include a main processor 1111 and a secondary processor or coprocessor 1112. The main processor 1111 may include a central processing unit (CPU). The main processor 1111 may further include one or more of a graphics processing unit (GPU), a communication processor (CP), and an image signal processor (ISP).

[0185] The coprocessor 1112 may include a controller 1112-1. The controller 1112-1 may include interface conversion circuitry and timing control circuitry. The controller 1112-1 can receive image signals from the main processor 1111, convert the data format of the image signals to match the interface specifications of the display module 1140, and output the image data. The controller 1112-1 can output various control signals to drive the display module 1140. For example, the controller 1112-1 can drive the display module 1140 to display icons suitable for user selection on the screen, thereby enabling the application 1123 to execute.

[0186] Memory 1120 may store one or more applications 1123 and various data used by at least one component of electronic device 1000 (e.g., processor 1110 or user interface 1161), as well as input or output data of associated commands. For example, camera applications, GPS applications, augmented reality and virtual reality applications, and other applications may be executed by processor 1110 when a user selects a corresponding icon presented on a display screen (or display panel 1141) via touchscreen 1142 or user interface 1161. Furthermore, various setting data corresponding to user settings may be stored in memory 1120. Memory 1120 may include volatile memory 1121 and non-volatile memory 1122.

[0187] Display module 1140 can output visual information (or images) to a user. Display module 1140 may include display panel 1141, gate driver, source driver, voltage generation circuitry, and touchscreen 1142. Display module 1140 may further include a window, chassis, and bracket to protect display panel 1141. Display module 1140 may include... Figure 1 At least a portion of the configuration of the display device 10 shown in the figure.

[0188] User interface 1161 serves as an interaction medium between the user and electronic device 1000. User interface 1161 can detect input from a part of the user's body (e.g., a finger) or from a pen or mouse, and generate electrical signals or data values ​​corresponding to the input. User interface 1161 includes a fingerprint sensor 1162, an input sensor 1163, and a digitizer 1164.

[0189] The fingerprint sensor 1162 can sense fingerprints for biometric identification of a user, and can also measure one or more biometric signals such as blood pressure, humidity, or weight.

[0190] Input sensor 1163 can sense user interactions including touch, click, gesture, motion, voice commands, and eye movements. Input sensor 1163 includes optical sensors for image capture, eye tracking, or motion and gesture detection. The optical sensors can be infrared or semiconductor photodetectors. Input sensor 1163 includes audio and acoustic sensors, which can be MEMS microphones for voice recognition or voice-based interaction. The audio and acoustic sensors can be mounted or embedded in display panel 1141 as part of user interface 1161.

[0191] The digitizer 1164 can generate data values ​​corresponding to the coordinate information of pen or mouse input to control cursor movement on the screen. The digitizer 1164 can also generate electromagnetic changes caused by input as data values. The digitizer 1164 can detect input from a passive pen, or send and receive data using an active pen or remote control.

[0192] At least one of the fingerprint sensor 1162, the input sensor 1163, and the digitizer 1164 can be implemented as a sensor layer formed on the top layer of the display panel 1141 through a continuous process having a process for forming elements (e.g., light-emitting elements and transistors) included in the display panel 1141.

[0193] Furthermore, the user interface 1161 may further include, for example, a gesture sensor, a gyroscope sensor for sensing rotational motion, an accelerometer for tracking translational motion, a grip sensor, a pressure sensor, a proximity sensor, a color sensor, an infrared (IR) emitter and camera sensor for tracking gaze direction and eye movement, a temperature sensor, or a light sensor. For example, the gyroscope sensor, accelerometer, and infrared emitter and camera sensor may be specifically adapted for AR / VR headset functionality.

[0194] Touchscreen 1142 includes a touch sensor embedded in a semiconductor layer of display panel 1141 to sense pressure applied to the top layer (or screen) of display panel 1141. The touch sensor can be capacitive or resistive. Touchscreen 1142 can be used as a main interface for user selection and navigation applications, controlling electronic device 1000, and interacting with electronic device 1000.

[0195] The display panel 1141 (or display) may include a liquid crystal display panel, an organic light-emitting display panel, or an inorganic light-emitting display panel, and the type of display panel 1141 is not specifically limited. The display panel 1141 may be a rigid or flexible type that can be rolled up or folded. The display module 1140 may further include supports, brackets, and heat dissipation components for supporting the display panel 1141. The display module 1140 may be used to implement the display device 1060. The display panel 1141 may include... Figure 1 The display unit shown in the image.

[0196] Power module 1150 (e.g., power supply 1050) can provide power to components of electronic device 1000. Power module 1150 can be used to implement power supply 1050. Power module 1150 may include a battery that is charged to a power supply voltage. The battery may include a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. Power module 1150 may include a power management integrated circuit (PMIC). The PMIC can provide optimized power to each of the aforementioned components, including display module 1140.

[0197] This invention can be applied to any display device and any electronic device, including those with touch panels. For example, it can be applied to mobile phones, smartphones, digital televisions (TVs), 3D TVs, personal computers (PCs) (e.g., tablet computers or laptops), home appliances, personal digital assistants (PDAs), portable multimedia players (PMPs), digital cameras, music players, portable game consoles, navigation devices, etc.

[0198] The foregoing description is illustrative of the inventive concept and should not be construed as limiting it. Although some embodiments of the inventive concept have been described, those skilled in the art will readily understand that many modifications can be made to the embodiments without substantially departing from the novel teachings of the inventive concept. Therefore, all such modifications are intended to be included within the scope of the inventive concept as defined in the claims. It will therefore be understood that the foregoing description is illustrative of the inventive concept and should not be construed as limiting it to the specific embodiments disclosed, and modifications to the disclosed embodiments and other embodiments are intended to be included within the scope of the appended claims.

Claims

1. A touch module, comprising: Touch panel, including touch electrodes; and A touch panel driver is configured to provide a touch drive signal to the touch panel and detect a touch of an object based on a touch sensing signal received from the touch panel in response to the touch drive signal. The touch panel is self-pointing, and The touch panel driver includes touch drivers, and each of the touch drivers is configured to provide the touch drive signal to the touch panel with a different frequency.

2. The touch module of claim 1, wherein, As the number of different frequencies increases, electromagnetic interference decreases.

3. The touch module of claim 1, wherein, The touch electrodes included in the self-pointing touch panel form a touch capacitor with the object, and the touch panel driver is configured to detect the touch of the object based on the capacitance change of each of the touch capacitors.

4. The touch module of claim 1, wherein, The touch electrodes included in the self-pointing touch panel are arranged along rows and columns.

5. The touch module of claim 4, wherein, The touch panel further includes a touch line connected to the touch electrode and a multiplexer connected to the touch line, and each of the touch drivers is configured to provide the touch drive signal to each of the corresponding multiplexers in the multiplexers.

6. The touch module of claim 5, wherein, The touch drive signals applied to the touch electrodes arranged adjacent to each other along the row have different timing sequences.

7. The touch module of claim 1, wherein, When the touch driver includes a first touch driver configured to output a first touch drive signal having a first frequency and a second touch driver configured to output a second touch drive signal having a second frequency, the touch panel includes a first touch area and a second touch area arranged adjacent to each other along a row, and the first touch drive signal is applied to the touch electrode included in the first touch area, and the second touch drive signal is applied to the touch electrode included in the second touch area.

8. The touch module of claim 7, wherein, The first frequency and the second frequency are different from each other.

9. The touch module according to claim 8, wherein, The first frequency and the second frequency are selected such that the least common multiple of the reciprocal of the first frequency and the reciprocal of the second frequency is greater than a predetermined threshold.

10. The touch module according to claim 9, wherein, As the least common multiple of the reciprocals of the first frequency and the second frequency increases, electromagnetic interference decreases.

11. The touch module according to claim 7, wherein, When the first touch driver is configured to output a first touch driving signal having a first frequency and a third touch driving signal having a third frequency, and the second touch driver is configured to output a second touch driving signal having a second frequency and a fourth touch driving signal having a fourth frequency, the touch panel further includes a third touch area and a fourth touch area arranged adjacent to each other along the row, the third touch area being arranged adjacent to the first touch area along the column, the fourth touch area being arranged adjacent to the second touch area along the column, the third touch driving signal being applied to the touch electrode included in the third touch area, and the fourth touch driving signal being applied to the touch electrode included in the fourth touch area.

12. The touch module according to claim 11, wherein, The first frequency, the second frequency, the third frequency, and the fourth frequency are different from each other.

13. A display device, comprising: The display module includes a display panel and a display panel driver configured to drive the display panel; and The touch module according to any one of claims 1 to 12.

14. An electronic device comprising: The processor is configured to output input image data and input control signals; According to claim 13, the display panel driver is configured to drive the display panel based on the input image data and the input control signal.

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