Touch sensing device and method

Abstract

The present invention relates to a touch sensing device and method in which a plurality of touch ICs can efficiently and quickly handle a large touch having a large touch area in response to a large touch occurring on a touch panel, the apparatus includes a first touch IC that generates first touch data corresponding to a first area of a touch panel and a second touch IC that generates second touch data corresponding to a second area of the touch panel adjacent to the first area, in which when a touch sensing signal is input from a touch sensor positioned in the second area of the touch panel, the first touch IC generates first touch data corresponding to the first area of the touch panel and the second touch IC generates second touch data corresponding to the second area of the touch panel. The second touch IC may: determine whether there is a touch on a boundary surface of the second area adjacent to the first area based on the touch sensing signal; if there is a touch on the boundary surface, determining whether the touch is a large touch of a preset size or greater; if the touch is a large touch, separating a boundary touch area adjacent to the boundary surface from the entire area of the large touch; and transmitting boundary touch information of the separated boundary touch area to the first touch IC.

Description

Technical Field

[0001] The present disclosure relates to a touch sensing device including a plurality of touch integrated circuits (ICs), and more particularly to a touch sensing device and method capable of efficiently and quickly processing a large touch having a large touch area through a plurality of touch ICs in response to the occurrence of a large touch on a touch panel. Background Art

[0002] Generally, touch sensing technology is a technology for identifying a user's input operation by sensing a signal generated when an object approaches or contacts a touch panel including a sensor.

[0003] A variety of types such as magnetic induction type, resistive type, and capacitive type are used in touch sensing technology, but in recent years, capacitive technology has gradually become the mainstream.

[0004] A plurality of sensors are provided in the touch panel, and the larger the area of the touch panel or the higher the resolution of the touch panel, the more sensors may be provided in the touch panel.

[0005] Recently, as the area of the touch panel has become larger and larger, while the resolution of the touch panel has become higher and higher, the number of sensors provided in the touch panel has also increased.

[0006] When the number of sensors provided in the touch panel increases, the sensing signals can be allocated to process the sensing signals using a plurality of touch integrated circuits (ICs) instead of using one touch IC to process all sensing signals.

[0007] As an example, a first touch IC among a plurality of touch ICs may process the sensing signals of a first area of the touch panel, and a second touch IC may process the sensing signals of a second area of the touch panel.

[0008] However, when a large touch having a large touch area occurs on the touch panel in a boundary area including a part of the first area and a part of the second area of the touch panel, the first touch IC may not accurately determine whether the touch on the touch panel is a single-finger touch or a multi-finger touch, and thus there is a problem of inaccurate touch sensing.

[0009] In addition, when the first touch IC processes all touch areas corresponding to the large touch, there is also a problem that the touch processing speed is significantly reduced due to an increase in the communication time for receiving touch sensing data of the second area of the touch panel from the second touch IC.

[0010] Therefore, it is necessary to develop a touch sensing device in the future that can accurately identify a large touch on the touch panel and efficiently and quickly process the large touch. Summary of the Invention

[0011] Technical problem

[0012] The present disclosure aims to solve the above problems and other problems.

[0013] The present disclosure aims to provide a touch sensing device and method that can accurately identify a large touch on a touch panel and efficiently and quickly process the large touch by transmitting only necessary information of a boundary touch area in the entire area of the large touch to an adjacent touch IC when the boundary touch between different areas of the touch panel is a large touch.

[0014] Technical solution

[0015] A touch sensing device according to an embodiment of the present disclosure is a touch sensing device configured to process touches on a touch panel, the touch sensing device including: a first touch IC configured to generate first touch data corresponding to a first area of the touch panel; and a second touch IC configured to generate second touch data corresponding to a second area adjacent to the first area of the touch panel, wherein the second touch IC can perform the following operations: when a touch sensing signal is input from a touch sensor located in the second area of the touch panel, check whether there is a touch on a boundary surface adjacent to the first area in the second area based on the touch sensing signal, check whether the touch is a large touch of a preset size or larger when there is a touch on the boundary surface, when the touch is a large touch, separate a boundary touch area adjacent to the boundary surface from the entire area of the large touch, and transmit boundary touch information of the separated boundary touch area to the first touch IC.

[0016] A touch IC of a touch sensing device according to another embodiment of the present disclosure is a touch IC connected to a touch sensor corresponding to an area of a touch panel, the touch IC including: a communication unit connected to another touch IC to communicate with it, the another touch IC being connected to a touch sensor corresponding to another area of the touch panel; and a touch data processing unit configured to generate touch data of the area of the touch panel, wherein the touch data processing unit can perform the following operations: when a touch sensing signal is input from a touch sensor located in an area of the touch panel, check whether there is a touch on a boundary surface adjacent to the another area in the area based on the touch sensing signal, check whether the touch is a large touch larger than a preset size when there is a touch on the boundary surface, when the touch is a large touch, separate a boundary touch area adjacent to the boundary surface from the entire area of the large touch, and transmit boundary touch information of the separated boundary touch area to the another touch IC.

[0017] The touch sensing method according to an embodiment of the present disclosure is a touch sensing method of a touch sensing device, the touch sensing device including: a first touch IC configured to generate first touch data corresponding to a first area of a touch panel; and a second touch IC configured to generate second touch data corresponding to a second area adjacent to the first area of the touch panel. The touch sensing method may include: when a touch sensing signal is input from a touch sensor in the second area of the touch panel, checking, by the second touch IC, whether there is a touch on a boundary surface adjacent to the first area in the second area based on the touch sensing signal; when there is a touch on the boundary surface, checking, by the second touch IC, whether the touch is a large touch of a preset size or larger; when the touch is a large touch, separating, by the second touch IC, a boundary touch area adjacent to the boundary surface from the entire area of the large touch; and transmitting, by the second touch IC, boundary touch information of the separated boundary touch area to the first touch IC.

[0018] Advantageous Effects

[0019] According to an embodiment of the present disclosure, when a boundary surface touch between different areas of a touch panel is a large touch, the touch sensing device can accurately identify the large touch of the touch panel and efficiently and quickly process the large touch by transmitting only necessary information of the boundary touch area in the entire area of the large touch to an adjacent touch IC.

[0020] That is, in the present disclosure, when the boundary surface touch is a large touch, if separation of the fingers of the large touch is possible, only touch information of a part of the separable boundary surface in the entire area of the large touch is transmitted to the adjacent touch IC, or if separation of the fingers of the large touch is impossible, only some touch information of the touch information other than the touch sensing data in the total touch information of the large touch is transmitted to the adjacent touch IC, thereby efficiently and quickly processing the large touch by minimizing the amount and time of transmission of the touch information. Description of the Drawings

[0021] Figure 1 is a schematic diagram for describing a display device according to an embodiment of the present disclosure.

[0022] Figure 2 is a schematic diagram for describing a touch sensing device of a display device according to an embodiment of the present disclosure.

[0023] Figures 3 to 8 is a schematic diagram for describing an operation corresponding to a touch position of a touch sensing device according to an embodiment of the present disclosure.

[0024] Figures 9 to 11 is a schematic diagram for describing touch information transmitted between touch ICs.

[0025] Figures 12 to 14 It is a schematic diagram for describing the operation of a method for separating touch areas of a touch sensing device according to an embodiment of the present disclosure.

[0026] Figure 15 It is a schematic diagram for describing a touch IC of a touch sensing device according to an embodiment of the present disclosure.

[0027] Figures 16 to 18 It is a schematic diagram for describing the connection relationship between a touch panel and a touch IC according to an embodiment of the present disclosure.

[0028] Figures 19 to 21 It is a schematic diagram for describing a touch sensing method of a touch sensing device according to an embodiment of the present disclosure. Detailed Embodiments

[0029] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. However, the same or similar components are denoted by the same reference numerals regardless of the drawing numbers, and repeated descriptions thereof will be omitted. The suffixes "module" and "section" of the components given or mixed in the following description are only for facilitating the writing of the specification, and they do not have any meaning or function of mutual distinction by themselves. In addition, when it is determined that the detailed description of related well-known technologies unnecessarily obscures the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. Further, the drawings are only for facilitating the understanding of the embodiments disclosed in this specification, and the technical scope disclosed in this specification is not limited by the drawings, and should be understood to include all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure.

[0030] Terms including ordinal numbers such as first and second may be used to describe different components, but these components are not limited to these terms. These terms are only used to distinguish one component from another.

[0031] It should be understood that when a component is referred to as being "connected" or "coupled" to another component, it may be directly connected or directly coupled to the other component, but there may also be intermediate components therebetween. On the contrary, it should be understood that when a component is referred to as being "directly connected" or "directly coupled" to another component, there are no other intermediate components.

[0032] Figure 1 It is a schematic diagram for describing a display device according to an embodiment of the present disclosure.

[0033] As Figure 1 shown, the display device 10 may include a display panel 400 and a touch panel 100.

[0034] Here, the display device 10 may be configured as a separate panel in which the display panel 400 and the touch panel 100 are separated from each other.

[0035] In some cases, the display device 10 may be configured as an integrated panel in which the display panel 400 and the touch panel 100 are coupled to each other.

[0036] As an example, the display device 10 may be an integrated panel and include an in-cell panel (not shown). The in-cell panel may use a display electrode or a touch electrode as a common electrode.

[0037] In addition, the display device 10 may include a driving device 500 for driving the display panel 400 and a touch sensing device 200 for driving the touch panel 100 and sensing a touch.

[0038] In addition, the display device 10 may include a host 300 that can transmit display information to the driving device 500 and receive touch information from the touch sensing device 200.

[0039] Here, in the display device 10, the driving device 500 and the touch sensing device 200 may be separately provided, but may be provided in one integrated circuit device.

[0040] When the display device 10 includes an integrated panel in which the display panel 400 and the touch panel 100 are coupled to each other, it may be advantageous for the driving device 500 and the touch sensing device 200 to be configured as one integrated circuit device.

[0041] As an example, since the in-cell panel uses a display electrode or a touch electrode as a common electrode, when the driving device 500 and the touch sensing device 200 are integrated and provided in one integrated circuit device, the common electrode can be driven as a display electrode and the common electrode can be driven as a touch electrode by using one driving circuit.

[0042] In addition, the display panel 400 may include at least one of a liquid crystal display (LCD), a thin film transistor liquid crystal display (TFT-LCD), an organic light emitting diode (OLED), a flexible display, and a 3D display.

[0043] Some of such display panels 400 may be transparent or light-transmissive so that the outside can be seen through them.

[0044] It may be referred to as a transparent display module, and a representative example of the transparent display module includes a transparent OLED (TOLED).

[0045] The display panel 400 may include a plurality of data lines, a plurality of gate lines intersecting the data lines, a plurality of thin film transistors (TFTs) formed at the intersection points of the data lines and the gate lines, a plurality of display electrodes for charging data voltage in the cells, and storage capacitors connected to the display electrodes to maintain the cell voltage.

[0046] Next, the driving device 500 may convert the digital video data (RGB) input from the host 300 or a timing controller (not shown) into an analog positive / negative polarity gamma compensation voltage to output a data voltage (DATA: data).

[0047] Here, the data voltage may be supplied to the data lines.

[0048] The driving device 500 may sequentially supply gate pulses (SCAN: scan) to the gate lines of the display panel 400 to select the gate lines to which the data voltage (DATA) is applied.

[0049] In this way, the display panel 400 and the driving device 500 may perform the function of displaying an image on the screen of the display device 10.

[0050] Next, the display device 10 may sense user manipulation through the touch panel 100 and the touch sensing device 200.

[0051] Here, the touch panel 100 may be separately disposed above the display panel 400.

[0052] In some cases, the touch panel 100 may be disposed on the same substrate as the pixel array of the display panel 400 to form an in-cell structure.

[0053] In addition, the touch panel 100 may include a plurality of driving electrodes, a plurality of receiving electrodes, and a plurality of touch sensors.

[0054] Here, the driving electrodes and the receiving electrodes may have an intersecting structure in which the two are positioned on different layers and are arranged to cross each other.

[0055] In such an intersecting structure, the sensor may be a capacitor formed at the intersection point of the driving electrode and the receiving electrode.

[0056] In some cases, the driving electrodes and the receiving electrodes may be positioned on the same layer to have a single-layer structure.

[0057] In such a single-layer structure, the sensor may be a capacitor horizontally formed between the driving electrode and the receiving electrode.

[0058] As another case, the driving electrodes and the receiving electrodes may have a self-structure.

[0059] In such a self-structure, the sensor may be a capacitor formed between a receiving electrode and a peripheral electrode.

[0060] In this way, the driving electrode and the receiving electrode of the touch panel 100 may have various positional relationships.

[0061] Here, a capacitor positioned between the receiving electrode and the peripheral electrode or positioned between the receiving electrodes may be used as a touch sensor.

[0062] That is, the capacitance of the capacitor changes due to an object approaching or contacting the touch panel 100, thereby sensing the touch.

[0063] Next, the touch sensing device 200 may supply a driving signal TX to the driving electrode, generate touch coordinates by sensing a sensing signal RX of the touch sensor through the receiving electrode, and transmit such touch coordinate data to the host 300.

[0064] Here, the touch sensing device 200 may include two or more touch ICs, and use the two or more touch ICs to distribute and process the sensing signals.

[0065] Each touch IC among the touch ICs of the touch sensing device 200 may be responsible for touch sensing corresponding to a partial area of the touch panel 100.

[0066] As an example, when the touch panel 100 is divided into two regions, the touch sensing device 200 may use two touch ICs to sense touch signals corresponding to each divided region.

[0067] As another example, when the touch panel 100 is divided into three regions, the touch sensing device 200 may use three touch ICs to sense touch signals corresponding to each divided region.

[0068] In addition, each touch IC may include: one or more readout integrated circuits (ROICs), the one or more ROICs being configured to supply a touch driving signal to the touch panel 100 and receive a touch sensing signal from the touch panel 100; and a microcontroller unit (MCU), the MCU being configured to determine the presence or position of a large touch of the touch input using the touch sensing signal detection result.

[0069] Here, the one or more ROICs may be implemented as individual components or an integrated component.

[0070] In some cases, each touch IC may include only the ROIC, and may be implemented such that one MCU is separated to be commonly connected to a plurality of touch ICs.

[0071] Here, the MCU can determine whether a large touch exists based on the touch sensing signal received from the ROIC.

[0072] Figure 2 is a schematic diagram of a touch sensing device for a display device according to an embodiment of the present disclosure.

[0073] As Figure 2 shown, the touch sensing device 200 may include: a first touch IC 210 configured to generate first touch data corresponding to a first region R1 of the touch panel 100; and a second touch IC 220 configured to generate second touch data corresponding to a second region R2 adjacent to the first region R1 of the touch panel 100.

[0074] In some cases, when the touch panel 100 is divided into three regions, the present disclosure may further include a third touch IC configured to generate third touch data corresponding to a third region adjacent to the second region R2 of the touch panel 100.

[0075] As an example, the number of touch ICs may be equal to the number of divided regions of the touch panel 100.

[0076] When a touch sensing signal is input from a touch sensor located in the first region R1 of the touch panel 100, the first touch IC 210 may process the first touch data of the first region R1 based on the touch sensing signal, and when receiving boundary touch information of a boundary touch region from the second touch IC 220, the first touch IC 210 may process the third touch data of the boundary touch region within the second region R2 based on the boundary touch information.

[0077] Here, the boundary touch region may be a region between a boundary line BL between the first region R1 and the second region R2 and a preset reference column CC, and includes a peripheral region of the boundary line within the second region.

[0078] The first touch IC 210 may process the first touch data of the first region R1 and simultaneously receive boundary touch information of a boundary touch region within the second region R2 from the second touch IC 220.

[0079] In addition, when receiving boundary touch information from the second touch IC 220, the first touch IC 210 may, after processing the first touch data of the first region R1, continue to process the third touch data of the boundary touch region within the second region R2 based on the boundary touch information.

[0080] In addition, after receiving the boundary touch information from the second touch IC 220, the first touch IC 210 may check whether there is a touch 110 on the boundary surface of the first region R1 adjacent to the second region R2, and check whether the boundary touch region adjacent to the boundary surface of the first region R1 in the entire region of the touch 110 is separable.

[0081] As an example, the first touch IC 210 may wait until all boundary touch information has been received from the second touch IC 220, check whether the boundary touch region within the first region R1 is separable when all boundary touch information has been received from the second touch IC 220, process the first touch data of the boundary touch region within the first region R1 when the boundary touch region within the first region R1 is separable, and process the third touch data of the boundary touch region within the second region R2 based on the continuously received boundary touch information.

[0082] Here, when checking whether the boundary touch region within the first region R1 is separable, the first touch IC 210 may obtain the touch sensitivity of the entire touch region of the first region R1 based on the touch sensing signal, obtain the touch sensitivity of the boundary touch region within the second region R2 from the boundary touch information received from the second touch IC 220, search for touch sensors whose touch sensitivity is a reference value or greater based on the obtained touch sensitivity, and analyze the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater to check whether the boundary touch region within the first region R1 is separable.

[0083] As an implementation, when the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater gradually decreases and then increases, the first touch IC 210 may check that the boundary touch region is separable around the touch sensor with the lowest touch sensitivity level.

[0084] Here, when the touch sensitivity of the touch sensor located at the X coordinate among the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater gradually decreases and then increases, the first touch IC 210 may check that the boundary touch region is separable around the touch sensor with the lowest touch sensitivity level.

[0085] In some cases, when the touch sensitivity of the touch sensor located at the Y coordinate among the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater gradually decreases and then increases, the first touch IC 210 may also check that the boundary touch region is separable around the touch sensor with the lowest touch sensitivity level.

[0086] As another case, when the touch sensitivity of the touch sensor located at the X coordinate and the touch sensitivity of the touch sensor located at the Y coordinate among the touch sensors positioned between touch sensors with a touch sensitivity equal to or greater than the reference value gradually decrease and then increase, the first touch IC 210 can also detect that the boundary touch area is separable around the touch sensor with the lowest touch sensitivity level.

[0087] As yet another case, when the touch sensitivity gradually decreases and then increases, the first touch IC 210 can recognize the touch means as a finger and determine that finger separation is possible.

[0088] As another embodiment, the first touch IC 210 can input the touch sensitivity of the touch sensors positioned between touch sensors with a touch sensitivity equal to or greater than the reference value into a pre-trained neural network model to predict the touch sensor for separation reference based on the touch sensitivity level distribution.

[0089] As yet another embodiment, when the touch sensitivity of the touch sensors positioned within a specific distance from touch sensors with a touch sensitivity equal to or greater than the reference value has a preset sensitivity level distribution, the first touch IC 210 can select the touch sensor for separation reference based on the preset sensitivity level distribution and detect that the boundary touch area is separable around the selected touch sensor.

[0090] Here, the first touch IC 210 can input the touch sensitivity of the touch sensors positioned within a specific distance from touch sensors with a touch sensitivity equal to or greater than the reference value into a pre-trained neural network model to predict the touch sensor for separation reference based on the touch sensitivity level distribution.

[0091] Next, when the first touch IC 210 is selected as the main IC, the first touch IC 210 can receive the second touch data of the second region R2 from the second touch IC 220, generate large touch information based on the first touch data of the first region R1, the second touch data of the second region R2, and the third touch data of the boundary touch area within the second region R2, and transmit the generated large touch information to the host 300.

[0092] Here, after processing the first touch data of the first region R1 and the third touch data of the boundary touch area within the second region R2, the first touch IC 210 can check whether the first touch IC 210 has been pre-selected as the main IC, and request the second touch IC to transmit the second touch data of the second region R2 when the first touch IC 210 is pre-selected as the main IC.

[0093] In this case, when checking whether the first touch IC 210 has been pre-selected as the main IC, the first touch IC 210 can be checked by pre-stored user setting information or by a user input requesting to be selected as the main IC.

[0094] In addition, when generating large touch information, the first touch IC 210 can generate large touch information including large touch coordinate information, large touch sensitivity information, and the number of large touch sensors.

[0095] Furthermore, when generating large touch information, the first touch IC 210 can further generate large touch information including large touch coordinate information, large touch sensitivity information, the number of large touch sensors, total touch size information, and information on the number of touch sensors on the boundary surface around the boundary line BL.

[0096] As an example, the touch coordinate information can include the X end touch sensor coordinate, the Y start touch sensor coordinate, and the Y end touch sensor coordinate, the large touch sensitivity information can include the maximum sensitivity value of the touch sensor, the X coordinate touch sensor position with the maximum sensitivity, and the Y coordinate touch sensor position with the maximum sensitivity, and the number of large touch sensors can include the total number of touch sensors within the large touch area covered by the large touch.

[0097] In some cases, when generating large touch information, the first touch IC 210 can generate touch tracking information based on the first touch data of the first region R1, the second touch data of the second region R2, and the third touch data of the boundary touch region within the second region R2, and transmit the touch tracking information together with the large touch information to the host 300.

[0098] Here, the touch tracking information can include information linking the touch coordinates generated in the previous frame to the touch coordinates generated in the current frame, and include information capable of sensing continuous touch operations such as a sliding touch.

[0099] In addition, the first touch IC 210 can receive boundary touch information from the second touch IC 220, and the boundary touch information includes touch coordinate information, touch sensitivity information, and the number of touch sensors of the boundary touch region.

[0100] As an example, when receiving the boundary touch information, the first touch IC 210 can receive boundary touch information including touch sensing data corresponding to all touch sensors located within the boundary touch region.

[0101] Here, when receiving boundary touch information including touch sensing data, if it is determined that the touch in the second region R2 is not a large touch of a preset size or larger or the large touch is separable, the first touch IC 210 may receive the boundary touch information including touch sensing data from the second touch IC 220.

[0102] As another example, when receiving boundary touch information, the first touch IC 210 may receive boundary touch information that does not include touch sensing data corresponding to each touch sensor in the boundary touch area.

[0103] Here, when receiving boundary touch information that does not include touch sensing data, if it is determined that the touch in the second region R2 is a large touch of a preset size or larger and the large touch is inseparable, the first touch IC 210 may receive the boundary touch information that does not include touch sensing data from the second touch IC 220.

[0104] For example, the touch coordinate information may include the X end touch sensor coordinate, the Y start touch sensor coordinate, and the Y end touch sensor coordinate, the large touch sensitivity information may include the maximum sensitivity value of the touch sensor, the X coordinate touch sensor position with the maximum sensitivity, and the Y coordinate touch sensor position with the maximum sensitivity, and the number of touch sensors may include the total number of touch sensors in the boundary touch area covered by the touch.

[0105] In addition, the second touch IC 220 may perform the following operations: when a touch sensing signal is input from a touch sensor located in the second region R2 of the touch panel 100, check whether there is a touch 110 at the boundary surface adjacent to the first region R1 in the second region R2 based on the touch sensing signal, check whether the touch 110 is a large touch of a preset size or larger when there is a touch 110 at the boundary surface, separate the boundary touch area adjacent to the boundary surface from the entire area of the large touch when the touch is a large touch, and transmit the boundary touch information of the separated boundary touch area to the first touch IC 210.

[0106] Here, when a touch sensing signal is input from a touch sensor located in the second region R2 of the touch panel 100 before checking whether there is a touch 110 at the boundary surface adjacent to the first region R1, the second touch IC 220 may check whether the first touch IC 210 configured to generate first touch data corresponding to the first region R1 of the touch panel 100 exists, and check whether there is a touch 110 at the boundary surface adjacent to the first region R1 when the first touch IC 210 exists.

[0107] In this case, when the first touch IC 210 does not exist, the second touch IC 220 can check whether there is a touch 110 in the second region R2 based on the touch sensing signal, check whether a partial touch area in the entire area of the touch 110 is separable, process the touch data of the separated partial touch area when the partial touch area within the second region R2 is separable, and then sequentially process the touch data of the remaining touch areas.

[0108] In addition, when checking whether the partial touch area is separable, the second touch IC 220 can obtain the touch sensitivity of the entire touch area of the second region R2 based on the touch sensing signal, search for touch sensors with a touch sensitivity equal to or greater than a reference value based on the obtained touch sensitivity, and analyze the touch sensitivity of the touch sensors located between the touch sensors with a touch sensitivity equal to or greater than the reference value to check whether the partial touch area within the second region R2 is separable.

[0109] Here, when the touch sensitivity of the touch sensors located between the touch sensors with a touch sensitivity equal to or greater than the reference value gradually decreases and then increases, the second touch IC 220 can check that the partial touch area is separable around the touch sensor with the lowest touch sensitivity level.

[0110] As an example, when the touch sensitivity of the touch sensor located at the X coordinate among the touch sensors with a touch sensitivity equal to or greater than the reference value gradually decreases and then increases, the second touch IC 220 can check that the partial touch area is separable around the touch sensor with the lowest touch sensitivity level.

[0111] As another example, when the touch sensitivity of the touch sensor located at the Y coordinate among the touch sensors with a touch sensitivity equal to or greater than the reference value gradually decreases and then increases, the second touch IC 220 can also check that the partial touch area is separable around the touch sensor with the lowest touch sensitivity level.

[0112] As yet another example, when the touch sensitivity of the touch sensor located at the X coordinate and the touch sensitivity of the touch sensor located at the Y coordinate among the touch sensors with a touch sensitivity equal to or greater than the reference value gradually decrease and then increase, the second touch IC 220 can also check that the partial touch area is separable around the touch sensor with the lowest touch sensitivity level.

[0113] As yet another example, when the touch sensitivity gradually decreases and then increases, the second touch IC 220 can identify the touch means as a finger and determine that finger separation is possible.

[0114] In some cases, the second touch IC 220 may input the touch sensitivity of touch sensors located between touch sensors whose touch sensitivity is a reference value or greater into a pre-trained neural network model to predict touch sensors separating the reference based on the touch sensitivity level distribution.

[0115] As another case, when the touch sensitivity of touch sensors located within a specific distance from a touch sensor whose touch sensitivity is a reference value or greater has a preset sensitivity level distribution, the second touch IC 220 may select a touch sensor as the separation reference based on the preset sensitivity level distribution and check that a partial touch area is separable around the selected touch sensor.

[0116] Here, the second touch IC 220 may input the touch sensitivity of touch sensors located within a specific distance from a touch sensor whose touch sensitivity is a reference value or greater into a pre-trained neural network model to predict touch sensors separating the reference based on the touch sensitivity level distribution.

[0117] In addition, when checking for a touch on the boundary surface adjacent to the first region R1, in the case where a touch sensing signal is input from at least one of the touch sensors in the first column with respect to the boundary line BL in the second region R2, the second touch IC 220 may recognize that there is a touch on the boundary surface adjacent to the first region R1.

[0118] In some cases, when no touch sensing signal is input from the touch sensors in the first column with respect to the boundary line BL in the second region R2, the second touch IC 220 may recognize that there is no touch on the boundary surface adjacent to the first region R1.

[0119] Here, when there is no touch on the boundary surface adjacent to the first region R1, the second touch IC 220 may check whether a touch sensing signal is input from touch sensors in columns other than the first column in the second region R2, and when a touch sensing signal is input from touch sensors in other columns, the second touch IC 220 may process the second touch data in the second region R2 based on the touch sensing signal.

[0120] In addition, the second touch IC 220 may store the processed second touch data in a memory when processing the second touch data in the second region R2, and transmit the stored second touch data to the first touch IC 210 when receiving a transmission request for the second touch data from the first touch IC 210 pre-selected as the main IC.

[0121] As another embodiment, when processing the second touch data of the second region R2, the second touch IC 220 may perform the following operations: store the processed second touch data in a memory, receive the first touch data of the first region R1 from the first touch IC 210 when the second touch IC 220 is selected as the main IC, generate touch information based on the first touch data of the first region R1 and the second touch data of the second region R2, and transmit the generated touch information to the host 300.

[0122] Here, the second touch IC 220 may check whether the second touch IC 220 has been pre-selected as the main IC after processing the second touch data of the second region R2, and request the first touch IC 210 to transmit the first touch data of the first region R1 when the second touch IC 220 is pre-selected as the main IC.

[0123] As an example, when checking whether the second touch IC 220 has been pre-selected as the main IC, the second touch IC 220 may check through pre-stored user setting information or through a user input requesting to be selected as the main IC.

[0124] In addition, when generating touch information, the second touch IC 220 may generate touch information including touch coordinate information, touch sensitivity information, and the number of touch sensors.

[0125] In some cases, when generating touch information, the second touch IC 220 may also generate touch information including touch sensing data corresponding to all touch sensors located within the touch area.

[0126] Here, the touch coordinate information may include the X end touch sensor coordinate, the Y start touch sensor coordinate, and the Y end touch sensor coordinate. The large touch sensitivity information may include the maximum sensitivity value of the touch sensor, the X coordinate touch sensor position with the maximum sensitivity, and the Y coordinate touch sensor position with the maximum sensitivity. And the number of touch sensors may include the total number of touch sensors within the touch area covered by the touch.

[0127] In addition, when generating touch information, the second touch IC 220 may generate touch tracking information based on the first touch data in the first region R1 and the second touch data in the second region R2, and transmit the touch tracking information to the host 300 together with the touch information.

[0128] Next, when checking whether the touch 110 is a large touch of a preset size or larger, the second touch IC 220 may check whether the touch 110 is continuous from the touch sensor in the first column relative to the boundary line BL arranged in the second region R2 to the touch sensor arranged in the Nth reference column CC, and when the touch 110 is continuous, the second touch IC 220 identifies the touch as a large touch of a preset size or larger.

[0129] In some cases, when the touch 110 is continuous from the touch sensor in the first column relative to the boundary line BL arranged in the second region R2 to the touch sensor in the (N-1)th column arranged at the boundary surface, the second touch IC 220 may identify the touch as a normal touch smaller than the large touch.

[0130] Here, when the touch 110 is identified as a normal touch, the second touch IC 220 may transmit the boundary touch information of the boundary touch region adjacent to the boundary to the first touch IC 210.

[0131] In addition, when transmitting the boundary touch information, the second touch IC 220 may transmit the boundary touch information including the touch coordinate information of the boundary touch region, the touch sensitivity information, the number of touch sensors, and the touch sensing data corresponding to all the touch sensors located within the boundary touch region to the first touch IC 210.

[0132] Next, when separating the boundary touch region adjacent to the boundary surface, the second touch IC 220 may check whether the boundary touch region adjacent to the boundary line BL is separable from the entire region of the large touch, and when the boundary touch region is separable, the second touch IC may separate the boundary touch region of the large touch and transmit the boundary touch information of the separated boundary touch region to the first touch IC 210.

[0133] Here, when checking whether the boundary touch region of the large touch is separable, the second touch IC 220 may obtain the touch sensitivity of the entire large touch region of the second region R2 based on the touch sensing signal, search for the touch sensors with a touch sensitivity of a reference value or greater based on the obtained touch sensitivity, and analyze the touch sensitivity of the touch sensors located between the touch sensors with a touch sensitivity of a reference value or greater to check whether the boundary touch region of the large touch is separable.

[0134] In this case, when the touch sensitivity of the touch sensors located between the touch sensors with a touch sensitivity of a reference value or greater gradually decreases and then increases, the second touch IC 220 may check that the boundary touch region is separable around the touch sensor with the lowest touch sensitivity level.

[0135] As an example, when the touch sensitivity of the touch sensor located at the X coordinate among the touch sensors positioned between touch sensors having a touch sensitivity equal to or greater than a reference value gradually decreases and then increases, the second touch IC 220 can check that the boundary touch area is separable around the touch sensor having the lowest touch sensitivity level.

[0136] As another example, when the touch sensitivity of the touch sensor located at the Y coordinate among the touch sensors positioned between touch sensors having a touch sensitivity equal to or greater than a reference value gradually decreases and then increases, the second touch IC 220 can check that the boundary touch area is separable around the touch sensor having the lowest touch sensitivity level.

[0137] As yet another example, when the touch sensitivity of the touch sensor located at the X coordinate and the touch sensitivity of the touch sensor located at the Y coordinate among the touch sensors positioned between touch sensors having a touch sensitivity equal to or greater than a reference value gradually decrease and then increase, the second touch IC 220 can check that the boundary touch area is separable around the touch sensor having the lowest touch sensitivity level.

[0138] As yet another example, when the touch sensitivity gradually decreases and then increases, the second touch IC 220 can recognize the touch means as a finger and determine that finger separation is possible.

[0139] In some cases, the second touch IC 220 can input the touch sensitivity of the touch sensors positioned between touch sensors having a touch sensitivity equal to or greater than a reference value into a pre-trained neural network model to predict the touch sensor for separation reference based on the touch sensitivity level distribution.

[0140] In another case, when the touch sensitivity of the touch sensors positioned within a specific distance from touch sensors having a touch sensitivity equal to or greater than a reference value has a preset sensitivity level distribution, the second touch IC 220 can select the touch sensor for separation reference based on the preset sensitivity level distribution and check that the boundary touch area is separable around the selected touch sensor.

[0141] Here, the second touch IC 220 can input the touch sensitivity of the touch sensors positioned within a specific distance from touch sensors having a touch sensitivity equal to or greater than a reference value into a pre-trained neural network model to predict the touch sensor for separation reference based on the touch sensitivity level distribution.

[0142] In addition, when the boundary touch area of the large touch is separated, the second touch IC 220 may transmit boundary touch information including touch coordinate information of the separated boundary touch area, touch sensitivity information, the number of touch sensors, and touch sensing data corresponding to all touch sensors located within the boundary touch area to the first touch IC 210.

[0143] As an example, the touch coordinate information may include the X end touch sensor coordinate, the Y start touch sensor coordinate, and the Y end touch sensor coordinate, the large touch sensitivity information may include the maximum sensitivity value of the touch sensors, the X coordinate touch sensor position with the maximum sensitivity, and the Y coordinate touch sensor position with the maximum sensitivity, and the number of touch sensors may include the total number of touch sensors within the touch area covered by the touch.

[0144] In some cases, when the boundary touch area of the large touch is not separable, the second touch IC 220 may transmit large touch information other than the touch sensing data corresponding to all touch sensors located within the entire large touch area of the second region R2 of the large touch to the first touch IC 210.

[0145] Here, the second touch IC 220 may transmit large touch information including large touch coordinate information, large touch sensitivity information, and the number of large touch sensors to the first touch IC 210.

[0146] For example, the large touch coordinate information may include the X end touch sensor coordinate, the Y start touch sensor coordinate, and the Y end touch sensor coordinate, the large touch sensitivity information may include the maximum sensitivity value of the touch sensors, the X coordinate touch sensor position with the maximum sensitivity, and the Y coordinate touch sensor position with the maximum sensitivity, and the number of large touch sensors may include the total number of touch sensors within the large touch area covered by the large touch.

[0147] Next, the second touch IC 220 may transmit the boundary touch information of the separated boundary touch area to the first touch IC 210, and process the large touch data of the remaining large touch area except the boundary touch area based on the touch sensing signal.

[0148] Here, when processing the large touch data of the remaining large touch area except the boundary touch area, the second touch IC 220 may store the processed large touch data in the memory, and transmit the stored large touch data to the first touch IC 210 when receiving a transmission request for the large touch data from the first touch IC 210 preselected as the main IC.

[0149] In some cases, when processing large touch data, the second touch IC 220 can store the processed large touch data in a memory, receive the first touch data of the first region R1 and the third touch data of the boundary touch region from the first touch IC 210 when the second touch IC 220 is selected as the main IC, generate touch information based on the first touch data of the first region R1, the second touch data of the second region R2, and the third touch data of the boundary touch region, and transmit the generated touch information to the host 300.

[0150] Here, the second touch IC 220 can check whether the second touch IC 220 has been pre-selected as the main IC after processing the large touch data of the second region R2, and request the first touch IC 210 to transmit the first touch data of the first region R1 and the third touch data of the boundary touch region when the second touch IC 220 is pre-selected as the main IC.

[0151] In this case, when checking whether the second touch IC 220 has been pre-selected as the main IC, the second touch IC 220 can check through pre-stored user setting information or through a user input requesting to be selected as the main IC.

[0152] In addition, when generating touch information, the second touch IC 220 can generate touch information including touch coordinate information, touch sensitivity information, and the number of touch sensors.

[0153] Here, when generating touch information, the second touch IC 220 can also generate touch information including touch sensing data corresponding to all touch sensors located within the touch region.

[0154] Furthermore, when generating touch information, the second touch IC 220 can further generate touch information including touch coordinate information, touch sensitivity information, the number of touch sensors, total touch size information, and information about the number of touch sensors on the boundary surface around the boundary line BL.

[0155] As an example, the touch coordinate information can include the X end touch sensor coordinate, the Y start touch sensor coordinate, and the Y end touch sensor coordinate, the touch sensitivity information can include the maximum sensitivity value of the touch sensor, the X coordinate touch sensor position with the maximum sensitivity, and the Y coordinate touch sensor position with the maximum sensitivity, and the number of touch sensors can include the total number of touch sensors within the touch region covered by the touch.

[0156] In some cases, when generating touch information, the first touch IC 210 may generate touch tracking information based on the first touch data of the first region R1, the second touch data of the second region R2, and the third touch data of the boundary touch region, and transmit the touch tracking information together with the touch information to the host 300.

[0157] In addition, each of the first touch IC 210 and the second touch IC 220 may include one or more readout integrated circuits (ROICs) configured to supply touch drive signals to the touch panel 100 and receive touch sensing signals from the touch panel 100; and a microcontroller unit (MCU) configured to determine the presence or position of a large touch of a touch input using the touch sensing signal detection result.

[0158] Here, the one or more ROICs may be implemented as individual components or an integrated component.

[0159] As another embodiment, each of the first touch IC 210 and the second touch IC 220 may include only ROICs, and may be implemented such that one MCU is separated to be commonly connected to multiple touch ICs.

[0160] Here, the MCU may determine whether there is a large touch based on the touch sensing signal received from the ROIC.

[0161] That is, the MCU may perform the following operations: when a touch sensing signal corresponding to the second region of the touch panel is input from the second touch IC 220, check whether there is a touch on the boundary surface adjacent to the first region of the second region based on the touch sensing signal, check whether the touch is a large touch of a preset size or larger when there is a touch on the boundary surface, separate the boundary touch region adjacent to the boundary surface from the entire region of the large touch when the touch is a large touch, and store the boundary touch information of the separated boundary touch region.

[0162] Next, when a touch sensing signal corresponding to the first region of the touch panel is input from the first touch IC 210, the MCU may process the first touch data of the first region based on the touch sensing signal, and process the third touch data of the boundary touch region within the second region based on the boundary touch information of the boundary touch region.

[0163] Here, when a touch sensing signal corresponding to the first region of the touch panel is input from the first touch IC 210, the MCU may check whether there is a touch on the boundary surface adjacent to the second region of the first region based on the touch sensing signal, and check whether the boundary touch region adjacent to the boundary surface of the first region in the entire region of the touch is separable.

[0164] That is to say, when storing boundary touch information based on touch sensing signals corresponding to the second region of the touch panel, the MCU can check whether the boundary touch region within the first region is separable based on the touch sensing signals corresponding to the first region of the touch panel. When the boundary touch region within the first region R1 is separable, the MCU processes the first touch data of the boundary touch region within the first region and processes the third touch data of the boundary touch region within the second region based on the continuously stored boundary touch information.

[0165] When checking whether the boundary touch region within the first region is separable, the MCU can obtain the touch sensitivity of the entire touch region of the first region R1 based on the touch sensing signals, obtain the touch sensitivity of the boundary touch region within the second region R2 from the boundary touch information, search for touch sensors whose touch sensitivity is equal to or greater than the reference value based on the obtained touch sensitivities, and analyze the touch sensitivities of the touch sensors located between the touch sensors whose touch sensitivity is equal to or greater than the reference value to check whether the boundary touch region within the first region is separable.

[0166] As an example, when the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is equal to or greater than the reference value gradually decreases and then increases, the MCU can check that the boundary touch region is separable around the touch sensor with the lowest touch sensitivity level.

[0167] As another example, the MCU can input the touch sensitivities of the touch sensors located between the touch sensors whose touch sensitivity is equal to or greater than the reference value into a pre-trained neural network model to predict the touch sensors for separation reference based on the touch sensitivity level distribution.

[0168] As yet another example, when the touch sensitivities of the touch sensors located within a specific distance from the touch sensors whose touch sensitivity is equal to or greater than the reference value have a preset sensitivity level distribution, the MCU can select the touch sensors for separation reference based on the preset sensitivity level distribution and check that the boundary touch region is separable around the selected touch sensors.

[0169] In addition, the MCU can generate large touch information based on the first touch data of the first region, the second touch data of the second region, and the third touch data of the boundary touch region within the second region, and transmit the generated large touch information to the host.

[0170] Here, when generating the large touch information, the MCU can generate large touch information including large touch coordinate information, large touch sensitivity information, and the number of large touch sensors.

[0171] In some cases, when generating large touch information, the MCU 220 can generate touch tracking information based on the first touch data of the first region, the second touch data of the second region, and the third touch data of the boundary touch region within the second region, and transmit the touch tracking information together with the large touch information to the host.

[0172] In addition, when it is determined that the touch in the second region is not a large touch of a preset size or larger or the large touch is separable, the MCU can extract boundary touch information including touch sensing data from pre-stored boundary touch information.

[0173] In addition, when it is determined that the touch in the second region is a large touch of a preset size or larger or the large touch is inseparable, the MCU can extract boundary touch information that does not include touch sensing data from pre-stored boundary touch information.

[0174] Next, when checking whether there is a touch on the boundary surface adjacent to the first region, in the case where a touch sensing signal is input from at least one touch sensor among the touch sensors in the first column located on the boundary surface of the second region, the MCU can recognize that there is a touch on the boundary surface adjacent to the first region.

[0175] In addition, when no touch sensing signal is input from the touch sensors in the first column located on the boundary surface of the second region, the MCU can recognize that there is no touch on the boundary surface adjacent to the first region.

[0176] Here, when there is no touch on the boundary surface adjacent to the first region, the MCU can check whether a touch sensing signal is input from the touch sensors in the columns other than the first column of the second region, and when a touch sensing signal is input from the touch sensors in the other columns, process the second touch data in the second region based on the touch sensing signal.

[0177] In addition, when checking whether the touch is a large touch of a preset size or larger, the MCU can check whether the touch is continuous from the touch sensors in the first column located on the boundary surface of the second region to the touch sensors in the Nth reference column, and when the touch is continuous, the MCU recognizes the touch as a large touch of a preset size or larger.

[0178] In addition, when the touch is continuous from the touch sensors in the first column of the second region to the touch sensors in the (N - 1)th column located on the boundary surface, the MCU can recognize the touch as a normal touch smaller than the large touch.

[0179] Next, when separating the boundary touch area adjacent to the boundary surface, the MCU can check whether the boundary touch area adjacent to the boundary surface is separable from the entire area of the large touch. When the boundary touch area is separable, the MCU separates the boundary touch area of the large touch and stores the boundary touch information of the separated boundary touch area in the memory.

[0180] In this way, in the present disclosure, when the boundary surface touch between different regions of the touch panel is a large touch, by only transmitting the necessary information of the boundary touch area in the entire area of the large touch to the adjacent touch IC, the large touch of the touch panel can be accurately identified, and the large touch can be processed efficiently and quickly.

[0181] That is, in the present disclosure, when the boundary surface touch is a large touch, if the separation of the fingers of the large touch is possible, only the touch information of a part of the separable boundary surface in the entire area of the large touch is transmitted to the adjacent touch IC, or if the separation of the fingers of the large touch is impossible, only some of the touch information in the touch information other than the touch sensing data in the total touch information of the large touch is transmitted to the adjacent touch IC, so as to process the large touch efficiently and quickly by minimizing the transmission amount and transmission time of the touch information.

[0182] Figures 3 to 8 is a schematic diagram for describing the operations corresponding to touch positions of a touch sensing device according to an embodiment of the present disclosure.

[0183] Figures 3 to 7 is a schematic diagram for describing the processing operations of touch signals corresponding to each divided area using two touch ICs when the touch panel is divided into two areas, and Figure 8 is a schematic diagram for describing the processing operations of touch signals corresponding to each divided area using three touch ICs when the touch panel is divided into three areas.

[0184] As Figures 3 to 7 shown, in the present disclosure, the touch sensing device may include: a first touch IC 210 configured to generate first touch data corresponding to a first area R1 of the touch panel 100; and a second touch IC 220 configured to generate second touch data corresponding to a second area R2 adjacent to the first area R1 based on a boundary line.

[0185] Here, the second area R2 may include a boundary touch area between a boundary line BL located between the first area R1 and the second area R2 and a preset reference column CC.

[0186] First, as Figure 3As shown, when the touch 110 occurs only in the first region R1 of the touch panel 100, when a touch sensing signal is input from the touch sensor located in the first region R1 of the touch panel 100, the first touch IC 210 can process the first touch data 112 of the first region based on the touch sensing signal.

[0187] Here, the first touch IC 210 can check whether the touch 110 in the first region R1 is a continuous touch extending to the boundary line BL based on the touch sensing signal.

[0188] When it is determined that the touch 110 in the first region R1 is not a continuous touch extending to the boundary line BL, the first touch IC 210 can process the first touch data 112 corresponding to the touch 110 in the first region R1.

[0189] In addition, when it is determined that the touch 110 in the first region R1 is a continuous touch extending to the boundary line BL, the first touch IC 210 can check whether the boundary touch region adjacent to the boundary line BL in the entire region of the touch 110 is separable, and when the boundary touch region is separable, process the first touch data 112 corresponding to the touch 110 in the first region R1 except for the boundary touch region only.

[0190] Here, after receiving the touch information corresponding to the boundary touch region from the second touch IC 220, the first touch IC 210 can process the touch data of the boundary touch region.

[0191] In addition, when processing the first touch data 112 corresponding to the touch 110 in the first region R1, the first touch IC 210 can check whether the touch 110 in the first region R1 is separable, and when the touch 110 in the first region R1 is separable, the first touch IC 210 can process the first touch data 112 corresponding to the touch 110 in the first region R1 by separating the touch 110 in the first region R1.

[0192] As an example, when the touch 110 in the first region R1 is separable, the first touch IC 210 can recognize the touch means as a finger and determine that finger separation is possible.

[0193] In addition, when checking whether the touch 110 in the first region R1 is separable, the first touch IC 210 can obtain the touch sensitivity of the entire region of the touch 110 in the first region R1 based on the touch sensing signal, search for the touch sensor whose touch sensitivity is a reference value or greater based on the obtained touch sensitivity, and analyze the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater to check whether the touch 110 in the first region R1 is separable.

[0194] As an implementation, when the touch sensitivity of a touch sensor located between touch sensors with a touch sensitivity equal to or greater than a reference value gradually decreases and then increases, the first touch IC 210 may check whether the touch 110 in the first region R1 is separable around the touch sensor with the lowest touch sensitivity level.

[0195] Here, when the touch sensitivity of the touch sensor located at the X coordinate among the touch sensors located between touch sensors with a touch sensitivity equal to or greater than a reference value gradually decreases and then increases, the first touch IC 210 may check that the touch 110 in the first region R1 is separable around the touch sensor with the lowest touch sensitivity level.

[0196] In some cases, when the touch sensitivity of the touch sensor located at the Y coordinate among the touch sensors located between touch sensors with a touch sensitivity equal to or greater than a reference value gradually decreases and then increases, the first touch IC 210 may check that the touch 110 in the first region R1 is separable around the touch sensor with the lowest touch sensitivity level.

[0197] As another case, when the touch sensitivity of the touch sensor located at the X coordinate and the touch sensitivity of the touch sensor located at the Y coordinate among the touch sensors located between touch sensors with a touch sensitivity equal to or greater than a reference value gradually decrease and then increase, the first touch IC 210 may check that the touch 110 in the first region R1 is separable around the touch sensor with the lowest touch sensitivity level.

[0198] As another implementation, the first touch IC 210 may input the touch sensitivity of the touch sensors located between touch sensors with a touch sensitivity equal to or greater than a reference value into a pre-trained neural network model to predict the touch sensor for separation reference based on the touch sensitivity level distribution.

[0199] As yet another implementation, when the touch sensitivity of the touch sensors located within a specific distance from touch sensors with a touch sensitivity equal to or greater than a reference value has a preset sensitivity level distribution, the first touch IC 210 may select the touch sensor as the separation reference based on the preset sensitivity level distribution and check that the touch 110 in the first region R1 is separable around the selected touch sensor.

[0200] Here, the first touch IC 210 may input the touch sensitivity of the touch sensors located within a specific distance from touch sensors with a touch sensitivity equal to or greater than a reference value into a pre-trained neural network model to predict the touch sensor for separation reference based on the touch sensitivity level distribution.

[0201] Next, as Figure 4 shown, when a touch 110 occurs in the first region R1 of the touch panel 100 and in the boundary touch region of the second region R2, in the case where a touch sensing signal is input from the touch sensor positioned in the first region R1 of the touch panel 100, the first touch IC 210 can process the first touch data 112 of the first region R1 based on the touch sensing signal, and when receiving the boundary touch information BRI of the boundary touch region within the second region R2 from the second touch IC 220, the first touch IC 210 can process the third touch data 114 of the boundary touch region within the second region R2 based on the boundary touch information BRI.

[0202] Here, the boundary touch region can be the region between the boundary line BL between the first region R1 and the second region R2 and the preset reference column CC, and includes the peripheral region of the boundary line within the second region.

[0203] The first touch IC 210 can process the first touch data of the first region R1 and simultaneously receive the boundary touch information BRI of the boundary touch region within the second region R2 from the second touch IC 220.

[0204] In addition, when receiving the boundary touch information BRI from the second touch IC 220, the first touch IC 210 can, after processing the first touch data 112 of the first region R1, continue to process the third touch data 114 of the boundary touch region within the second region R2 based on the boundary touch information BRI.

[0205] In addition, after receiving the boundary touch information BRI from the second touch IC 220, the first touch IC 210 can check whether there is a touch 110 on the boundary surface of the first region R1 adjacent to the second region R2, and check whether the boundary touch region adjacent to the boundary surface of the first region R1 in the entire region of the touch 110 is separable.

[0206] As an example, the first touch IC 210 can wait until all the boundary touch information BRI has been received from the second touch IC 220, check whether the boundary touch region within the first region R1 is separable when all the boundary touch information BRI has been received from the second touch IC 220, process the first touch data 112 of the boundary touch region within the first region R1 when the boundary touch region within the first region R1 is separable, and process the third touch data 114 of the boundary touch region within the second region R2 based on the continuously received boundary touch information BRI.

[0207] Here, when checking whether the boundary touch area in the first region R1 is separable, the first touch IC 210 can obtain the touch sensitivity of the entire touch area of the first region R1 based on the touch sensing signal, obtain the touch sensitivity of the boundary touch area in the second region R2 from the boundary touch information received from the second touch IC 220, search for touch sensors whose touch sensitivity is a reference value or greater based on the obtained touch sensitivity, and analyze the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater to check whether the boundary touch area in the first region R1 is separable.

[0208] In addition, when a touch sensing signal is input from a touch sensor located in the second region R2 of the touch panel 100, the second touch IC 220 can check whether there is a touch 110 at the boundary surface of the second region R2 adjacent to the first region R1 based on the touch sensing signal, and check whether the touch 110 is a large touch of a preset size or greater when there is a touch 110 at the boundary surface.

[0209] Here, when checking whether the touch 110 is a large touch of a preset size or greater, the second touch IC 220 can check whether the touch 110 is continuous from the touch sensors arranged in the first column relative to the boundary line BL in the second region R2 to the touch sensors arranged in the Nth reference column CC, and when the touch 110 is continuous, recognize the touch as a large touch of a preset size or greater.

[0210] However, as Figure 4 shown, when the touch 110 is continuous from the touch sensors arranged in the first column in the second region R2 to the touch sensors arranged in the (N - 1)th column at the boundary surface, the second touch IC 220 can recognize the touch as a normal touch smaller than the large touch.

[0211] Therefore, as Figure 4 shown, when the touch 110 is recognized as a normal touch, the second touch IC 220 can transmit the boundary touch information BRI of the boundary touch area adjacent to the boundary to the first touch IC 210.

[0212] Here, when transmitting the boundary touch information BRI, the second touch IC 220 can transmit the boundary touch information BRI including the touch coordinate information, touch sensitivity information, the number of touch sensors, and the touch sensing data corresponding to all the touch sensors located in the boundary touch area to the first touch IC 210.

[0213] As an example, the touch coordinate information may include an X end touch sensor coordinate, a Y start touch sensor coordinate, and a Y end touch sensor coordinate, the large touch sensitivity information may include a maximum sensitivity value of the touch sensor, an X coordinate touch sensor position having the maximum sensitivity, and a Y coordinate touch sensor position having the maximum sensitivity, and the number of touch sensors may include the total number of touch sensors within the touch area covered by the touch.

[0214] Next, as Figure 5 shown, when a touch 110 occurs in the first region R1, the second region R2, and the boundary touch area of the second region R2 of the touch panel 100, when a touch sensing signal is input from a touch sensor positioned in the first region R1 of the touch panel 100, the first touch IC 210 may process first touch data 112 of the first region R1 based on the touch sensing signal, and when receiving boundary touch information BRI of the boundary touch area from the second touch IC 220, the first touch IC 210 may process third touch data 114 of the boundary touch area within the second region R2 based on the boundary touch information BRI.

[0215] In addition, the second touch IC 220 may perform the following operations: when a touch sensing signal is input from a touch sensor positioned in the second region R2 of the touch panel 100, check whether there is a touch 110 on the boundary surface adjacent to the first region R1 in the second region R2 based on the touch sensing signal, check whether the touch 110 is a large touch of a preset size or larger when there is a touch 110 on the boundary surface, separate the boundary touch area adjacent to the boundary surface from the entire area of the large touch when the touch is a large touch, and transmit boundary touch information BRI of the separated boundary touch area to the first touch IC 210.

[0216] Next, the second touch IC 220 may process second touch data 116 corresponding to the region in the second region R2 other than the separated boundary touch area.

[0217] Here, when checking whether the touch 110 is a large touch of a preset size or larger, the second touch IC 220 may check whether the touch 110 is continuous from a touch sensor arranged in the first column relative to the boundary line BL in the second region R2 to a touch sensor arranged in the Nth reference column CC, and when the touch 110 is continuous, the second touch IC 220 identifies the touch as a large touch of a preset size or larger.

[0218] In addition, when separating the boundary touch area adjacent to the boundary surface, the second touch IC 220 can check whether the boundary touch area adjacent to the boundary line BL in the entire area of the large touch is separable. When the boundary touch area is separable, the second touch IC can separate the boundary touch area of the large touch and transmit the boundary touch information of the separated boundary touch area to the first touch IC 210.

[0219] Here, when checking whether the boundary touch area of the large touch is separable, the second touch IC 220 can obtain the touch sensitivity of the entire large touch area of the second area R2 based on the touch sensing signal, search for touch sensors whose touch sensitivity is the reference value or greater based on the obtained touch sensitivity, and analyze the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is the reference value or greater to check whether the boundary touch area of the large touch is separable.

[0220] When transmitting the boundary touch information BRI, the second touch IC 220 can transmit the boundary touch information including the touch coordinate information, touch sensitivity information, the number of touch sensors, and the touch sensing data corresponding to all the touch sensors located within the boundary touch area to the first touch IC 210.

[0221] In this way, in the present disclosure, when the boundary surface touch is a large touch, if the separation of the fingers of the large touch is possible, only the touch information of a part of the separable boundary surface in the entire area of the large touch is transmitted to the adjacent touch IC, thereby efficiently and quickly processing the large touch by minimizing the amount and time of transmission of the touch information.

[0222] In addition, as Figure 6 shown, when a touch 110 occurs in the first area R1, the second area R2, and the boundary touch area of the second area R2 of the touch panel 100, when a touch sensing signal is input from the touch sensors located in the first area R1 of the touch panel 100, the first touch IC 210 can process the first touch data 112 of the first area R1 based on the touch sensing signal, and when receiving the large touch information from the second touch IC 220, the first touch IC 210 can process the large touch data 118 within the second area R2 based on the large touch information.

[0223] In addition, the second touch IC 220 can perform the following operations: when a touch sensing signal is input from a touch sensor located in the second region R2 of the touch panel 100, check whether there is a touch 110 on the boundary surface of the second region R2 adjacent to the first region R1 based on the touch sensing signal, check whether the touch 110 is a large touch of a preset size or larger when there is a touch 110 at the boundary surface, check whether the large touch is separable when the touch 110 is a large touch, and transmit large touch information corresponding to the large touch to the first touch IC 210 when the large touch is not separable.

[0224] That is, when the boundary touch area of the large touch is not separable, the second touch IC 220 can transmit the large touch information other than the touch sensing data corresponding to all the touch sensors within the entire large touch area located in the second region R2 to the first touch IC 210.

[0225] Here, the second touch IC 220 can transmit the large touch information including the large touch coordinate information, the large touch sensitivity information, and the number of large touch sensors to the first touch IC 210.

[0226] For example, the large touch coordinate information can include the X end touch sensor coordinate, the Y start touch sensor coordinate, and the Y end touch sensor coordinate, the large touch sensitivity information can include the maximum sensitivity value of the touch sensor, the X coordinate touch sensor position with the maximum sensitivity, and the Y coordinate touch sensor position with the maximum sensitivity, and the number of large touch sensors can include the total number of touch sensors within the large touch area covered by the large touch.

[0227] In this way, in the present disclosure, when the boundary touch is a large touch, if finger separation of the large touch is impossible, only some touch information other than the touch sensing data among all the touch information of the large touch is transmitted to the adjacent touch IC, thereby efficiently and quickly processing the large touch by minimizing the amount of touch information transmitted and the transmission time.

[0228] Next, as Figure 7 shown, when touches 110 continuously occur on two boundary lines in the row direction of a part of the first region R1 and the second region R2 of the touch panel 100, when a touch sensing signal is input from a touch sensor located in the first region R1 of the touch panel 100, the first touch IC 210 can process the first touch data 112 of the first region R1 based on the touch sensing signal, and when receiving the large touch information from the second touch IC 220, the first touch IC 210 can process the large touch data 118 within the second region R2 based on the large touch information.

[0229] In addition, the second touch IC 220 may perform the following operations: when a touch sensing signal is input from a touch sensor positioned in the second region R2 of the touch panel 100, check whether there is a touch 110 on the boundary surface of the second region R2 adjacent to the first region R1 based on the touch sensing signal, check whether the touch 110 is a large touch of a preset size or larger when there is a touch 110 at the boundary surface, check whether the large touch is separable when the touch 110 is a large touch, and transmit large touch information corresponding to the large touch to the first touch IC 210 when the large touch is not separable.

[0230] That is, when the boundary touch area of the large touch is not separable, the second touch IC 220 may transmit large touch information other than touch sensing data corresponding to all touch sensors within the entire large touch area positioned in the second region R2 of the large touch to the first touch IC 210.

[0231] Here, the second touch IC 220 may transmit large touch information including large touch coordinate information, large touch sensitivity information, and the number of large touch sensors to the first touch IC 210.

[0232] Next, as Figure 8 shown, the present disclosure may include: a first touch IC 210 configured to generate first touch data 112 corresponding to the first region R1 of the touch panel 100; a second touch IC 220 configured to generate large touch data 118 corresponding to a second region R2 adjacent to the first region R1 based on a first boundary line BL1 of the touch panel 100; and a third touch IC 230 configured to generate fourth touch data 119 corresponding to a third region R3 adjacent to the second region R2 based on a second boundary line BL2 of the touch panel 100.

[0233] When a touch 110 occurs in the first region R1, second region R2, and third region R3 of the touch panel 100, when a touch sensing signal is input from a touch sensor positioned in the first region R1 of the touch panel 100, the first touch IC 210 may process the first touch data 112 of the first region R1 based on the touch sensing signal, and when receiving large touch information from the second touch IC 220, the first touch IC 210 may process the large touch data 118 within the second region R2 based on the large touch information.

[0234] In addition, the second touch IC 220 can perform the following operations: when a touch sensing signal is input from a touch sensor located in the second area R2 of the touch panel 100, check whether there is a touch 110 on the boundary surface of the second area R2 adjacent to the first area R1 based on the touch sensing signal, check whether the touch 110 is a large touch of a preset size or larger when there is a touch 110 at the boundary surface, check whether the large touch is separable when the touch 110 is a large touch, and transmit large touch information corresponding to the large touch to the first touch IC 210 when the large touch is not separable.

[0235] That is, when the boundary touch area of the large touch is not separable, the second touch IC 220 can transmit the large touch information other than the touch sensing data corresponding to all touch sensors within the entire large touch area located in the second area R2 to the first touch IC 210.

[0236] Next, when receiving the boundary touch information BRI of the boundary touch area from the third touch IC 230, the second touch IC 220 can process the fourth touch data 119 of the boundary touch area within the third area R3 based on the boundary touch information BRI.

[0237] In addition, the third touch IC 230 can perform the following operations: when a touch sensing signal is input from a touch sensor located in the third area R3 of the touch panel 100, check whether there is a touch 110 on the boundary surface of the third area R3 adjacent to the second area R2 based on the touch sensing signal, check whether the touch 110 is a large touch of a preset size or larger when there is a touch 110 on the boundary surface, separate the boundary touch area adjacent to the boundary surface from the entire area of the large touch when the touch is a large touch, and transmit the boundary touch information BRI of the separated boundary touch area to the second touch IC 220.

[0238] Next, the third touch IC 230 can process the touch data corresponding to the area in the third area R3 other than the separated boundary touch area.

[0239] Here, when checking whether the touch 110 is a large touch of a preset size or larger, the third touch IC 230 can check whether the touch 110 is continuous from the touch sensor arranged in the first column relative to the second boundary line BL2 in the third area R3 to the touch sensor arranged in the Nth reference column, and when the touch 110 is continuous, the third touch IC identifies the touch as a large touch of a preset size or larger.

[0240] In addition, when separating the boundary touch area adjacent to the boundary surface, the third touch IC 230 can check whether the boundary touch area adjacent to the second boundary line BL2 in the entire area of the large touch is separable, and when the boundary touch area is separable, the third touch IC can separate the boundary touch area of the large touch and transmit the boundary touch information of the separated boundary touch area to the second touch IC 220.

[0241] As another embodiment, the third touch IC 230 can transmit the boundary touch information BRI of the separated boundary touch area to the first touch IC 210.

[0242] Here, when a touch sensing signal is input from a touch sensor located in the first area R1 of the touch panel 100, the first touch IC 210 can process the first touch data 112 of the first area R1 based on the touch sensing signal. When receiving the large touch information from the second touch IC 220, the first touch IC processes the large touch data 118 within the second area R2 based on the large touch information. And when receiving the boundary touch information from the third touch IC 230, the first touch IC processes the fourth touch data 119 of the boundary touch area within the third area R3 based on the boundary touch information.

[0243] Thus, in the present disclosure, when the boundary surface touch is a large touch, if the separation of the fingers of the large touch is possible, only the touch information of a part of the separable boundary surface in the entire area of the large touch is transmitted to the adjacent touch IC, or if the separation of the fingers of the large touch is impossible, only some of the touch information other than the touch sensing data in the total touch information of the large touch is transmitted to the adjacent touch IC, thereby efficiently and quickly processing the large touch by minimizing the amount and time of transmission of the touch information.

[0244] Figures 9 to 11 It is a schematic diagram for describing the touch information transmitted between the touch ICs.

[0245] Figure 9 It shows the touch information generated based on the touch sensing signal of the corresponding area when there is a touch in an area other than the boundary surface between the first area and the second area of the touch panel.

[0246] As Figure 9 shown, the touch IC can generate touch information including touch sensing data, touch coordinate information, touch sensitivity information, and the number of touch sensors based on the touch sensing signal of the touch area.

[0247] Further, the touch IC may further generate touch information including touch coordinate information, touch sensitivity information, the number of touch sensors, total touch size information, and information on the number of touch sensors on the boundary surface around the boundary line.

[0248] As an example, the touch coordinate information may include X end touch sensor coordinates, Y start touch sensor coordinates, and Y end touch sensor coordinates, the touch sensitivity information may include the maximum sensitivity value of the touch sensors, the X coordinate touch sensor position with the maximum sensitivity, and the Y coordinate touch sensor position with the maximum sensitivity, and the number of touch sensors may include the total number of touch sensors within the touch area covered by the touch.

[0249] Figure 10 Shows touch information generated based on the touch sensing signal of the boundary region when there is a touch on the boundary surface between the first region and the second region of the touch panel.

[0250] As Figure 10 shown, the touch IC may generate touch information including touch sensing data, touch coordinate information, touch sensitivity information, and the number of touch sensors based on the touch sensing signal of the boundary region.

[0251] As an example, the touch coordinate information may include X end touch sensor coordinates, Y start touch sensor coordinates, and Y end touch sensor coordinates, the touch sensitivity information may include the maximum sensitivity value of the touch sensors, the X coordinate touch sensor position with the maximum sensitivity, and the Y coordinate touch sensor position with the maximum sensitivity, and the number of touch sensors may include the total number of touch sensors within the touch area covered by the touch.

[0252] Figure 11 Shows touch information generated based on the touch sensing signal of the large touch area when there is a large touch including the boundary surface between the first region and the second region of the touch panel.

[0253] As Figure 11 shown, the touch IC may generate touch information including touch coordinate information, touch sensitivity information, and the number of touch sensors in addition to the touch sensing data based on the touch sensing signal of the large touch area.

[0254] As an example, the touch coordinate information may include X end touch sensor coordinates, Y start touch sensor coordinates, and Y end touch sensor coordinates, the touch sensitivity information may include the maximum sensitivity value of the touch sensors, the X coordinate touch sensor position with the maximum sensitivity, and the Y coordinate touch sensor position with the maximum sensitivity, and the number of touch sensors may include the total number of touch sensors within the touch area covered by the touch.

[0255] Thus, when it is determined based on the touch sensing signal that the touch is a touch other than the boundary surface between the first region and the second region of the touch panel, the touch IC of the present disclosure can generate touch information including touch sensing data as shown in Figure 9 .

[0256] In addition, when it is determined based on the touch sensing signal that the touch is a touch including the boundary surface between the first region and the second region of the touch panel and is not a large touch with a large touch size, the touch IC of the present disclosure can generate touch information including touch sensing data as shown in Figure 10 to transmit to an adjacent touch IC.

[0257] Next, when it is determined based on the touch sensing signal that the touch is a touch including the boundary surface between the first region and the second region of the touch panel and is a large touch with a large touch size, the touch IC of the present disclosure can generate touch information not including touch sensing data as shown in Figure 11 to transmit to an adjacent touch IC.

[0258] In addition, when it is determined based on the touch sensing signal that the touch is a touch including the boundary surface between the first region and the second region of the touch panel, is a large touch with a large touch size, and the boundary surface region in the large touch is separable, the touch IC of the present disclosure can separate the boundary surface region from the large touch and generate touch information including touch sensing data corresponding to the separated boundary surface region (as shown in Figure 10 ) to transmit to an adjacent touch IC.

[0259] Figures 12 to 14 is a schematic diagram for describing operations of a touch area separation method of a touch sensing device according to an embodiment of the present disclosure.

[0260] As shown in Figures 12 to 14 , the touch IC of the present disclosure can determine whether the large touch is separable and generate touch information including touch sensing data or touch information not including touch sensing data according to whether the large touch is separable.

[0261] Here, when the large touch is separable, the touch IC of the present disclosure can recognize the touch means as a finger and determine that finger separation is possible.

[0262] In some cases, when the large touch is separable, the touch IC of the present disclosure can recognize the touch means as an object other than a finger and determine that object separation is possible.

[0263] In addition, the touch IC of the present disclosure can check whether a large touch includes a boundary surface between a first region and a second region of a touch panel, and determine whether the boundary surface region in the entire region of the large touch is separable.

[0264] As Figures 12 to 14 shown, when determining whether a touch area is separable, the touch IC of the present disclosure can obtain the touch sensitivity of the entire touch area based on the touch sensing signal, search for touch sensors whose touch sensitivity is a reference value or greater based on the obtained touch sensitivity, and analyze the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater to check whether the touch 110 is separable.

[0265] As an implementation, as Figure 12 shown, when the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater gradually decreases and then increases, the touch IC of the present disclosure can check that the touch 110 is separable around the touch sensor with the lowest touch sensitivity level.

[0266] Here, when the touch sensitivity of the touch sensor located at the X coordinate among the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater gradually decreases and then increases, the touch IC can check that the touch 110 is separable around the touch sensor with the lowest touch sensitivity level.

[0267] In some cases, when the touch sensitivity of the touch sensor located at the Y coordinate among the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater gradually decreases and then increases, the touch IC can check that the touch 110 is separable around the touch sensor with the lowest touch sensitivity level.

[0268] As another case, when the touch sensitivity of the touch sensor located at the X coordinate and the touch sensitivity of the touch sensor located at the Y coordinate among the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater gradually decrease and then increase, the touch IC can check that the touch 110 is separable around the touch sensor with the lowest touch sensitivity level.

[0269] As another implementation, as Figure 13 shown, when the touch sensitivity of the touch sensors located within a specific distance from the touch sensors whose touch sensitivity is a reference value or greater has a preset sensitivity level distribution, the touch IC of the present disclosure can select a touch sensor as a separation reference based on the preset sensitivity level distribution, and check that the touch 110 is separable around the selected touch sensor.

[0270] Here, the touch IC can input the touch sensitivity of the touch sensors located within a specific distance from it where the touch sensitivity is a reference value or greater into a pre-trained neural network model to predict the touch sensors separated from the reference based on the touch sensitivity level distribution.

[0271] As another embodiment, as Figure 14 shown, the touch IC of the present disclosure can input the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater into the pre-trained neural network model 800 to predict the touch sensors separated from the reference based on the touch sensitivity level distribution.

[0272] Here, the neural network model 800 can be a deep neural network including a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a Q-network, a U-network, a Siamese network, etc.

[0273] Figure 15 is a schematic diagram for describing the touch IC of a touch sensing device according to an embodiment of the present disclosure.

[0274] As Figure 15 shown, the touch IC 250 of the present disclosure can include a communication unit 252, a touch data processing unit 254, a memory 256, a signal processing unit 258, and a touch signal detection unit 259.

[0275] Here, the touch signal detection unit 259 can detect the touch sensing signals from the touch sensors of the touch panel.

[0276] Here, the touch signal detection unit 259 can include a pulse width modulation (PWM) generation circuit configured to generate drive pulses, a drive circuit capable of supplying a drive signal to the drive electrodes of the touch panel, and a sensing circuit capable of processing the sensing signals received from the receiving electrodes.

[0277] In this case, the PWM generation circuit can generate drive pulses for periodic sensing, and the drive circuit can supply a drive signal synchronized with the drive pulses to the touch panel.

[0278] In addition, the sensing circuit can sense the voltage or voltage change formed by the drive signal in each sensor.

[0279] As an example, in the case of a capacitive touch panel, a capacitance is formed in the touch sensor, and when the capacitance changes due to touch, the touch sensor can generate a voltage according to the change in capacitance.

[0280] Therefore, the sensing circuit can sense the voltage or voltage change of the touch sensor.

[0281] In some cases, the sensing circuit can sense the sensing signal corresponding to the periodically applied driving signal in a differential manner.

[0282] The sensing circuit may further include a differential amplifier circuit that senses the sensing signal in a differential manner, and the sensing circuit may use the differential amplifier circuit to differentially amplify the sensing signals of two adjacent receiving electrodes.

[0283] In this way, when the sensing circuit senses in a differential manner, there is an effect of reducing common-mode noise.

[0284] Next, the signal processing unit 258 can process the detected touch sensing signal to generate touch sensing data.

[0285] Here, the signal processing unit 258 can convert the analog sensing signal processed by the sensing circuit into touch sensing data, and then can store the touch sensing data in the memory 256.

[0286] In addition, the memory 256 can store the touch sensing data.

[0287] Next, the touch data processing unit 254 can use the touch sensing data stored in the memory 256 to generate touch data for an area of the touch panel.

[0288] Here, when a touch sensing signal is input from a touch sensor located in an area of the touch panel, the touch data processing unit 254 can check whether there is a touch on the boundary surface adjacent to another area in the said area based on the touch sensing signal, check whether the touch is a large touch of a preset size or larger when there is a touch on the boundary surface, separate the boundary touch area adjacent to the boundary surface from the entire area of the large touch when the touch is a large touch, and transmit the boundary touch information of the separated boundary touch area to the touch IC.

[0289] Next, the communication unit 252 can be connected to communicate with other touch ICs or other devices connected to touch sensors corresponding to other areas of the touch panel.

[0290] Here, the communication unit 252 can generate touch information corresponding to the boundary surface between the first area and the second area or touch information related to the large touch to transmit the touch information to another touch IC.

[0291] In some cases, the communication unit 252 can receive touch information corresponding to the boundary surface between the first area and the second area or touch information related to the large touch from another touch IC.

[0292] In addition, the communication unit 252 may transmit touch information generated when the touch signal detection unit 259 receives a touch sensing signal from the touch sensor of the touch panel to the host.

[0293] In addition, the communication unit 252 may transmit touch information generated when the touch signal detection unit 259 receives a touch sensing signal from the touch sensor of the touch panel to another touch IC, or may receive touch information from another touch IC.

[0294] In addition, the communication unit 252 may receive touch information from another touch IC while the signal processing unit 258 stores touch sensing data in the memory 256.

[0295] In addition, when the touch data processing unit 254 is generating touch data for the touch area of the touch panel, the communication unit 252 may receive touch information from another touch IC.

[0296] In this way, the touch IC of the present disclosure implements parallel processing for simultaneously performing processing operations between internal components, and thus can improve the overall signal processing speed.

[0297] Figures 16 to 18 is a schematic diagram for describing the connection relationship between a touch panel and a touch IC according to an embodiment of the present disclosure.

[0298] Figure 16 is a schematic diagram for describing the touch sensor of the touch panel.

[0299] As Figure 16 shown, the touch panel 100 may include a plurality of driving electrodes (TX) arranged in the Y direction and a plurality of receiving electrodes (RX) arranged in the X direction, and the touch sensor may be formed at positions where the driving electrodes (TX) and the receiving electrodes (RX) intersect.

[0300] In addition, the touch sensor may sense a touch using the capacitance generated between electrodes facing each other.

[0301] That is, when a specific object such as a finger or a pen approaches or touches the touch panel, the capacitance of the touch sensor changes, and the touch IC can identify the touch by measuring the change in the capacitance of the touch sensor.

[0302] The touch panel 100 of the present disclosure may be driven using the mutual capacitance method or the self-capacitance method.

[0303] Figure 17 is a first embodiment showing the connection configuration between the electrodes of the touch panel and the touch IC.

[0304] AsFigure 17 As shown, the first touch IC 210 may be connected to the receiving electrodes X1 to X8 positioned in the first region R1 of the touch panel 100, and the second touch IC 220 may be connected to the receiving electrodes X9 to X16 positioned in the second region R2 of the touch panel 100.

[0305] Here, when driving the touch sensing device in a single-ended type, multiple touch ICs may be connected to the receiving electrodes in sequence as Figure 17 shown.

[0306] A touch sensing device using a single-ended type driving method may input a driving signal to the driving electrode and sense a capacitance change of the touch sensor through each receiving electrode.

[0307] Accordingly, the first touch IC 210 may be connected to the receiving electrodes X1 to X8 positioned in the first region R1 to sense a capacitance change of the touch sensor positioned in the first region R1, and the second touch IC 220 may be connected to the receiving electrodes X9 to X16 positioned in the second region R2 to sense a capacitance change of the touch sensor positioned in the second region R2.

[0308] The first touch IC 210 and the second touch IC 220 may generate touch data using the capacitance change values of the touch sensors.

[0309] As an example, the first touch IC 210 may generate touch sensing data by processing touch sensing signals received from the receiving electrodes X1 to X8 (from the 1st to the 8th), and generate large touch information based on the touch sensing data.

[0310] In addition, the second touch IC 220 may generate touch sensing data by processing touch sensing signals received from the receiving electrodes X9 to X16 (from the 9th to the 16th), and generate touch information of the second region or boundary surface touch information based on the touch sensing data.

[0311] Here, among the first touch IC 210 and the second touch IC 220, the touch IC selected as the main touch IC may receive boundary surface touch information from the slave touch IC to transmit large touch information integrating touch information of the first region and the second region to the host.

[0312] In addition, the driving electrodes may be arranged in the Y direction to be driven in sequence, and the first touch IC 210 and the second touch IC 220 may generate touch sensing data of the touch region based on the touch sensing signals received by the line units of the driving electrodes.

[0313] In this case, the second touch IC 220 may transmit touch sensing data to the first touch IC 210 through the line unit of the driving electrode, or may transmit touch sensing data to the first touch IC 210 through the frame unit.

[0314] Figure 18 is a second embodiment showing a connection configuration between the electrodes of the touch panel and the touch IC.

[0315] As Figure 18 shown, the first touch IC 210 may be connected to the receiving electrodes X1 to X8 positioned in the first region R1 of the touch panel 100, and the second touch IC 220 may be connected to the receiving electrodes X9 to X16 positioned in the second region R2 of the touch panel 100 and the receiving electrode X8 positioned in the first region R1.

[0316] Here, when driving the touch sensing device in a differential type, multiple touch ICs may be connected to the receiving electrodes in sequence as Figure 17 shown.

[0317] A touch sensing device using a differential driving method may input a driving signal to the driving electrode and sense a differential signal from two adjacent receiving electrodes.

[0318] In some cases, the first touch IC 210 may be connected to the receiving electrodes X1 to X8 positioned in the first region R1 of the touch panel 100 and the receiving electrode X9 positioned in the second region R2, and the second touch IC 220 may be connected to the receiving electrodes X9 to X16 positioned in the second region R2 of the touch panel 100.

[0319] Since the differential driving method senses the differential signal between touch sensors, the touch IC may calculate the capacitance change value of the touch sensor by accumulating the differential sensing data of such differential signals in one direction.

[0320] As an example, the first touch IC 210 and the second touch IC 220 may accumulate differential sensing data in the direction from X16 to X1.

[0321] In addition, the second touch IC 220 may generate touch data for the second region R2 by sequentially accumulating the differential sensing data from the 16th and 15th receiving electrodes to the differential sensing data from the 9th and 8th receiving electrodes.

[0322] Next, when the first touch IC 210 accumulates differential sensing data in the direction from X16 to X1, the first touch IC 210 may receive the boundary surface touch data of the second region from the second touch IC 220 to calculate the accumulated value.

[0323] That is, the first touch IC 210 can generate touch information of a touch area by using differential sensing data generated by processing differential signals received from receiving electrodes X1 to X8 located in the first area R1 and boundary surface touch data of a second area received from the second touch IC 220.

[0324] Here, the second touch IC 220 can transmit the boundary surface touch data to the first touch IC 210 through a line unit of a driving electrode.

[0325] Figures 19 to 21 is a schematic diagram for describing a touch sensing method of a touch sensing device according to an embodiment of the present disclosure.

[0326] Figure 19 is a flowchart for describing a touch sensing method of a touch sensing device, the touch sensing device including: a first touch IC configured to generate first touch data corresponding to a first area of a touch panel; and a second touch IC configured to generate second touch data corresponding to a second area adjacent to the first area of the touch panel.

[0327] In some cases, in the present disclosure, when the touch panel is divided into multiple areas other than the first area and the second area, correspondingly, the touch sensing device may further include multiple touch ICs other than the first touch IC and the second touch IC.

[0328] As an example, in the present disclosure, the number of separated areas of the touch panel and the number of touch ICs corresponding to each separated area may be the same.

[0329] As Figure 19 shown, the second touch IC of the present disclosure can receive a touch sensing signal (S10) from a touch sensor located in a second area of the touch panel.

[0330] In addition, the second touch IC of the present disclosure can check whether there is a touch on a boundary surface adjacent to the first area in the second area based on the touch sensing signal (S20).

[0331] Here, when a touch sensing signal is input from a touch sensor located in a second area of the touch panel before checking whether there is a touch on a boundary surface adjacent to the first area, the second touch IC can check whether there is a first touch IC configured to generate first touch data corresponding to the first area, and when there is a first touch IC, check whether there is a touch on a boundary surface adjacent to the first area.

[0332] In some cases, when the first touch IC does not exist, the second touch IC can check whether there is a touch in the second area based on the touch sensing signal, check whether a partial touch area in the entire touched area is separable, process the touch data of the separated partial touch area when the partial touch area within the second area is separable, and then sequentially process the touch data of the remaining touch areas.

[0333] In addition, when a touch sensing signal is input from at least one touch sensor among the touch sensors arranged in the first column of the second area, the second touch IC can recognize that there is a touch on the boundary surface adjacent to the first area.

[0334] In some cases, when no touch sensing signal is input from the touch sensors arranged in the first column of the second area, the second touch IC can recognize that there is no touch on the boundary surface adjacent to the first area.

[0335] In this case, when there is no touch on the boundary surface adjacent to the first area, the second touch IC can check whether a touch sensing signal is input from the touch sensors arranged in the columns other than the first column of the second area, and when a touch sensing signal is input from the touch sensors arranged in the other columns, the second touch IC processes the second touch data in the second area based on the touch sensing signal.

[0336] In addition, the second touch IC can store the processed second touch data in a memory when processing the second touch data of the second area, and transmit the stored second touch data to the first touch IC when a transmission request for the second touch data is received from the first touch IC preselected as the main IC.

[0337] Next, when there is a touch on the boundary surface, the second touch IC of the present disclosure can check whether the touch is a large touch of a preset size or larger (S30).

[0338] Here, the second touch IC can check whether the touch is continuous from the touch sensors arranged in the first column on the boundary surface of the second area to the touch sensors arranged in the Nth reference column, and recognize the touch as a large touch of a preset size or larger when the touch is continuous.

[0339] In some cases, when the touch is continuous from the touch sensors arranged in the first column of the second area to the touch sensors arranged in the (N - 1)th column on the boundary surface, the second touch IC can recognize the touch as a normal touch smaller than the large touch.

[0340] In this case, when the touch is recognized as a normal touch, the second touch IC may transmit boundary touch information of a boundary touch area adjacent to the boundary to the first touch IC (S70).

[0341] As an example, when transmitting the boundary touch information, the second touch IC may transmit boundary touch information including touch coordinate information of the boundary surface touch area, touch sensitivity information, the number of touch sensors, and touch sensing data corresponding to all touch sensors located within the boundary touch area to the first touch IC.

[0342] Next, when the touch is a large touch, the second touch IC of the present disclosure may check whether a boundary touch area adjacent to the boundary surface in the entire area of the large touch is separable (S40).

[0343] Here, the second touch IC may obtain the touch sensitivity of the entire large touch area of the second area based on the touch sensing signal, search for touch sensors whose touch sensitivity is a reference value or greater based on the obtained touch sensitivity, and analyze the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater to check whether the boundary touch area of the large touch is separable.

[0344] As an example, when the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater gradually decreases and then increases, the second touch IC may check that the boundary touch area is separable around the touch sensor with the lowest touch sensitivity level.

[0345] As another example, the second touch IC may input the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is a reference value or greater into a pre-trained neural network model to predict the touch sensors for separation reference based on the touch sensitivity level distribution.

[0346] As still another example, when the touch sensitivity of the touch sensors located within a specific distance from the touch sensors whose touch sensitivity is a reference value or greater has a preset sensitivity level distribution, the second touch IC may select the touch sensors as separation reference based on the preset sensitivity level distribution and check that the boundary touch area is separable around the selected touch sensors.

[0347] In addition, when the boundary touch area is separable, the second touch IC of the present disclosure may separate the boundary touch area from the entire area of the large touch and transmit the boundary touch information of the separated boundary touch area to the first touch IC (S50).

[0348] Here, when separating the boundary touch area of a large touch, the second touch IC can transmit boundary touch information including touch coordinate information of the separated boundary touch area, touch sensitivity information, the number of touch sensors, and touch sensing data corresponding to all touch sensors located within the boundary touch area to the first touch IC.

[0349] As an example, the touch coordinate information may include X end touch sensor coordinates, Y start touch sensor coordinates, and Y end touch sensor coordinates, the large touch sensitivity information may include the maximum sensitivity value of the touch sensors, the X coordinate touch sensor position with the maximum sensitivity, and the Y coordinate touch sensor position with the maximum sensitivity, and the number of touch sensors may include the total number of touch sensors within the touch area covered by the touch.

[0350] Next, when the boundary touch area of the large touch is inseparable, the second touch IC can transmit large touch information other than the touch sensing data corresponding to all touch sensors located within the entire large touch area of the second area of the large touch to the first touch IC (S60).

[0351] Here, the second touch IC can transmit large touch information including large touch coordinate information, large touch sensitivity information, and the number of large touch sensors to the first touch IC.

[0352] As an example, the large touch coordinate information may include X end touch sensor coordinates, Y start touch sensor coordinates, and Y end touch sensor coordinates, the large touch sensitivity information may include the maximum sensitivity value of the touch sensors, the X coordinate touch sensor position with the maximum sensitivity, and the Y coordinate touch sensor position with the maximum sensitivity, and the number of large touch sensors may include the total number of touch sensors within the large touch area covered by the large touch.

[0353] In addition, when transmitting the boundary touch information of the separated boundary touch area to the first touch IC, the second touch IC can process the large touch data of the remaining large touch area except for the boundary touch area based on the touch sensing signal.

[0354] Here, when processing the large touch data of the remaining large touch area except for the boundary touch area, the second touch IC can store the processed large touch data in the memory and transmit the stored large touch data to the first touch IC when receiving a transmission request for the large touch data from the first touch IC preselected as the main IC.

[0355] Figure 20 is a flowchart for describing a touch sensing method of a touch sensing device, the touch sensing device including a plurality of touch ICs respectively corresponding to separated areas of a touch panel.

[0356] As shown Figure 20 in the figure, the touch IC of the present disclosure can receive touch sensing signals (S110) from the touch sensors of the touch panel.

[0357] In addition, the touch IC of the present disclosure can process the received touch sensing signals to generate and mark touch sensing data (S120).

[0358] Next, the touch IC of the present disclosure can check whether there is another touch IC on one side (S130).

[0359] Next, when there is another touch IC on one side, the touch IC of the present disclosure can check whether there is a touch on the unilateral boundary surface (S140).

[0360] In addition, when there is a touch on the unilateral boundary surface, the touch IC of the present disclosure can check whether the touch is a large touch of a preset size or larger (S150).

[0361] Here, when the touch is not a large touch, the touch IC of the present disclosure can transmit touch information including touch coordinate information, touch sensitivity information, the number of touch sensors in the touch area, and touch sensing data corresponding to all touch sensors located in the touch area to another touch IC on one side (S160).

[0362] Next, when the touch is a large touch, the touch IC of the present disclosure can store the touch on the unilateral boundary surface in the entire area of the large touch (S170) and separate the large touch (S180).

[0363] Here, when the touch means is a finger, the large touch separation can be finger separation.

[0364] As an example, the touch IC of the present disclosure can obtain the touch sensitivity of the entire large touch area based on the touch sensing signal, search for touch sensors whose touch sensitivity is the reference value or greater based on the obtained touch sensitivity, and analyze the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is the reference value or greater to perform finger separation of the large touch.

[0365] Next, the touch IC of the present disclosure can check whether the touch area is a touch on the unilateral boundary surface (S190), and check whether the boundary touch area is separated when the touch is a touch on the unilateral boundary surface (S200).

[0366] In addition, when separating the boundary touch area, the touch IC of the present disclosure may transmit boundary touch information including touch coordinate information of the separated boundary touch area, touch sensitivity information, the number of touch sensors, and touch sensing data corresponding to all touch sensors located within the boundary touch area to another touch IC on one side (S220).

[0367] In addition, when the boundary touch area is not separated, the touch IC of the present disclosure may transmit only large touch information other than touch sensing data corresponding to all touch sensors located within the entire large touch area including the boundary touch area to another touch IC on one side (S210).

[0368] Here, the touch IC of the present disclosure may transmit large touch information including large touch coordinate information, large touch sensitivity information, and the number of large touch sensors but not including touch sensing data to another touch IC on one side.

[0369] That is, in the present disclosure, when the boundary surface touch is a large touch, if finger separation of the large touch is possible, only touch information of a part of the separable boundary surface in the entire area of the large touch is transmitted to an adjacent touch IC, or if finger separation of the large touch is impossible, only some touch information of the touch information other than touch sensing data in the total touch information of the large touch is transmitted to an adjacent touch IC, thereby efficiently and quickly processing the large touch by minimizing the amount and time of touch information transmission.

[0370] Figure 21 is a flowchart for describing a touch information transmission process between a touch sensing device including a first touch IC and a second touch IC and a host.

[0371] As Figure 21 shown, when a large touch occurs on the touch panel, the first touch IC 210 and the second touch IC 220 of the present disclosure may receive touch sensing signals from the touch sensors.

[0372] The first touch IC 210 may receive touch sensing signals from touch sensors located in the first area of the touch panel (S310) and process the touch sensing signals (S320).

[0373] In addition, the second touch IC 220 may receive touch sensing signals from touch sensors located in the first area of the touch panel (S330) and process the touch sensing signals (S340).

[0374] Next, the second touch IC 220 may check whether there is a touch on the boundary surface adjacent to the first area in the second area based on the touch sensing signals (S350).

[0375] Next, when there is a touch on the boundary surface, the second touch IC 220 can check whether the touch is a large touch of a preset size or larger (S360).

[0376] In addition, when the touch is a large touch, the second touch IC 220 can check whether it is possible to separate the fingers of the large touch in the large touch area (S370).

[0377] Next, the second touch IC 220 can determine the boundary touch information to be transmitted according to whether the fingers are separated in the large touch area (S380).

[0378] Here, when it is possible to separate the fingers in the large touch area, the second touch IC 220 can separate the boundary touch area adjacent to the boundary surface from the entire area of the large touch, and transmit the boundary touch information including the touch sensing data of the separated boundary touch area to the first touch IC 210 (S390).

[0379] That is to say, the second touch IC 220 can transmit the boundary touch information including the touch sensing data corresponding to all touch sensors located in the boundary touch area to the first touch IC 210.

[0380] Here, the boundary touch information may include the touch coordinate information of the boundary touch, the touch sensitivity information, the number of touch sensors, and the touch sensing data of each touch sensor.

[0381] In addition, when it is impossible to separate the fingers in the large touch area, the second touch IC 220 can transmit only the large touch information that does not include the touch sensing data to the first touch IC 210.

[0382] That is to say, the second touch IC 220 can transmit only the large touch information except for the touch sensing data corresponding to all touch sensors located in the entire large touch area to the first touch IC 210.

[0383] Here, the large touch information may include the large touch coordinate information, the large touch sensitivity information, and the number of large touch sensors.

[0384] Next, when receiving the boundary touch information of the boundary touch area from the second touch IC 220, the first touch IC 210 can process the first touch data of the first area based on the touch sensing signal, and process the third touch data of the boundary touch area in the second area based on the boundary touch information (S400).

[0385] Here, the first touch IC 210 can process the first touch data of the first region and simultaneously receive the boundary touch information of the boundary touch region within the second region from the second touch IC 220.

[0386] In addition, when receiving the boundary touch information from the second touch IC 220, after processing the first touch data of the first region, the first touch IC 210 can continue to process the third touch data of the boundary touch region within the second region based on the boundary touch information.

[0387] In addition, the second touch IC 220 can process the second touch data of the region in the second region other than the boundary touch region (S410) and transmit the processed second touch data to the first touch IC 210 (S420).

[0388] Next, when the first touch IC 210 is selected as the main IC, the first touch IC 210 can receive the second touch data of the second region from the second touch IC 220 and generate large touch information based on the first touch data of the first region, the second touch data of the second region, and the third touch data of the boundary touch region within the second region (S430).

[0389] Here, after processing the first touch data of the first region and the third touch data of the boundary touch region within the second region, the first touch IC 210 can check whether the first touch IC 210 has been preselected as the main IC, and when the first touch IC 210 is preselected as the main IC, the first touch IC 210 can request the second touch IC to transmit the second touch data of the second region.

[0390] Next, the first touch IC 210 can transmit the generated large touch information to the host.

[0391] In some cases, the first touch IC 210 can generate touch tracking information based on the first touch data of the first region and the second touch data of the second region (S440) and transmit the touch tracking information to the host 300 together with the touch information (S450).

[0392] As another implementation, after processing the second touch data of the second region, the second touch IC 220 can check whether the second touch IC 220 has been preselected as the main IC, and when the second touch IC 220 is preselected as the main IC, the second touch IC 220 can request the first touch IC 210 to transmit the first touch data of the first region.

[0393] Next, when the second touch IC 220 is pre-selected as the main IC, the second touch IC 220 can receive the first touch data of the first area and the fourth touch data of the boundary touch area within the first area from the first touch IC 210, and generate large touch information based on the second touch data of the second area, the first touch data of the first area, and the fourth touch data of the boundary touch area within the first area.

[0394] In addition, when generating the large touch information, the second touch IC 220 can generate touch tracking information based on the first touch data of the first area and the second touch data of the second area, and transmit the touch tracking information to the host 300 together with the large touch information.

[0395] In this way, in the present disclosure, when the boundary surface touch between different areas of the touch panel is a large touch, by only transmitting the necessary information of the boundary touch area in the entire area of the large touch to the adjacent touch IC, the large touch of the touch panel can be accurately recognized, and the large touch can be processed efficiently and quickly.

[0396] That is to say, in the present disclosure, when the boundary surface touch is a large touch, if the finger separation of the large touch is possible, only the touch information of a part of the separable boundary surface in the entire area of the large touch is transmitted to the adjacent touch IC, or if the finger separation of the large touch is impossible, only some of the touch information other than the touch sensing data in the total touch information of the large touch is transmitted to the adjacent touch IC, so as to process the large touch efficiently and quickly by minimizing the transmission amount and transmission time of the touch information.

[0397] The above-mentioned present disclosure can be implemented as computer-readable code on a program recording medium. The computer-readable medium includes all types of recording devices that store data readable by a computer system. As examples of the computer-readable medium, there are hard disk drives (HDDs), solid state drives (SSDs), silicon disk drives (SDDs), ROMs, RAMs, CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, etc. In addition, the computer may include a processor of an artificial intelligence device.

[0398] Industrial Applicability

[0399] According to the touch sensing device according to the present disclosure, there are the following effects: when the boundary surface touch between different areas of the touch panel is a large touch, the touch sensing device can accurately recognize the large touch of the touch panel and process the large touch efficiently and quickly by only transmitting the necessary information of the boundary touch area in the entire area of the large touch to the adjacent touch IC, and thus the industrial applicability is remarkable.

Claims

1. A touch sensing device configured to process touches on a touch panel, the touch sensing device comprising: A first touch IC configured to generate first touch data corresponding to a first region of the touch panel; And A second touch IC configured to generate second touch data corresponding to a second region of the touch panel adjacent to the first region, wherein the second touch IC performs the following operations: when a touch sensing signal is input from a touch sensor positioned in the second region of the touch panel, check whether there is a touch on a boundary surface adjacent to the first region in the second region based on the touch sensing signal; when there is a touch on the boundary surface, check whether the touch is a large touch of a preset size or larger; when the touch is a large touch, separate a boundary touch region adjacent to the boundary surface from the entire region of the large touch; and transmit boundary touch information of the separated boundary touch region to the first touch IC.

2. The touch sensing device according to claim 1, wherein, When a touch sensing signal is input from a touch sensor positioned in the first region of the touch panel, the first touch IC processes the first touch data of the first region based on the touch sensing signal, and when receiving the boundary touch information of the boundary touch region from the second touch IC, the first touch IC processes third touch data of the boundary touch region within the second region based on the boundary touch information.

3. The touch sensing device according to claim 2, wherein, The first touch IC processes the first touch data of the first region and simultaneously receives the boundary touch information of the boundary touch region within the second region from the second touch IC.

4. The touch sensing device according to claim 1, wherein, The first touch IC performs the following operations: When selected as the main IC, receive the second touch data of the second region from the second touch IC, generate large touch information based on the first touch data of the first region, the second touch data of the second region, and third touch data of the boundary touch region within the second region, and transmit the generated large touch information to the host.

5. The touch sensing device according to claim 4, wherein, When generating the large touch information, the first touch IC generates touch tracking information based on the first touch data of the first region, the second touch data of the second region, and the third touch data of the boundary touch region within the second region, and transmits the touch tracking information to the host together with the large touch information.

6. The touch sensing device according to claim 2, wherein, The first touch IC receives boundary touch information including touch coordinate information, touch sensitivity information, and the number of touch sensors of the boundary touch region from the second touch IC.

7. The touch sensing device according to claim 1, wherein, When checking whether the touch is the large touch of the preset size or larger, the second touch IC checks whether the touch is continuous from the touch sensor in the first column at the boundary surface arranged in the second region to the touch sensor arranged in the Nth reference column, and when the touch is continuous, the second touch IC recognizes the touch as the large touch of the preset size or larger.

8. The touch sensing device according to claim 7, wherein, When the touch is continuous from the touch sensor in the first column arranged in the second region to the touch sensor in the (N - 1)th column at the boundary surface, the second touch IC recognizes the touch as a normal touch smaller than the large touch.

9. The touch sensing device according to claim 8, wherein, When recognizing the touch as the normal touch, the second touch IC transmits the boundary touch information of the boundary touch region adjacent to the boundary surface to the first touch IC.

10. The touch sensing device according to claim 9, wherein, When transmitting the boundary touch information, the second touch IC transmits the boundary touch information including the touch coordinate information of the boundary touch region, the touch sensitivity information, the number of touch sensors, and the touch sensing data corresponding to all the touch sensors located in the boundary touch region to the first touch IC.

11. The touch sensing device according to claim 1, wherein, When separating the boundary touch region adjacent to the boundary surface, the second touch IC checks whether the boundary touch region adjacent to the boundary surface in the entire region of the large touch is separable, and when the boundary touch region is separable, the second touch IC separates the boundary touch region of the large touch and transmits the boundary touch information of the separated boundary touch region to the first touch IC.

12. The touch sensing device according to claim 11, wherein, When checking whether the boundary touch region of the large touch is separable, the second touch IC obtains the touch sensitivity of the entire large touch region of the second region based on the touch sensing signal, searches for the touch sensors whose touch sensitivity is the reference value or greater based on the obtained touch sensitivity, and analyzes the touch sensitivity of the touch sensors located between the touch sensors whose touch sensitivity is the reference value or greater to check whether the boundary touch region of the large touch is separable.

13. The touch sensing device according to claim 11, wherein, When separating the boundary touch region of the large touch, the second touch IC transmits the boundary touch information including the touch coordinate information, the touch sensitivity information, the number of touch sensors, and the touch sensing data corresponding to all the touch sensors located in the separated boundary touch region to the first touch IC.

14. The touch sensing device according to claim 11, wherein When the boundary touch region of the large touch is not separable, the second touch IC transmits the large touch information of the large touch except for the touch sensing data corresponding to all the touch sensors located in the entire large touch region of the second region to the first touch IC.

15. A touch sensing device configured to process touches of a touch panel, and the touch sensing device includes: One or more readout integrated circuits (ROICs), the one or more ROICs being configured to receive touch sensing signals from a first region of the touch panel and a second region adjacent to the first region; And A microcontroller unit (MCU), the MCU being configured to determine whether a large touch exists based on the touch sensing signals, Wherein, the MCU performs the following operations: when the touch sensing signal is input from a touch sensor positioned in the second region of the touch panel, check whether there is a touch on a boundary surface of the second region adjacent to the first region based on the touch sensing signal; when there is a touch on the boundary surface, check whether the touch is a large touch of a preset size or larger; when the touch is a large touch, separate a boundary touch region adjacent to the boundary surface from the entire region of the large touch; and store boundary touch information of the separated boundary touch region.

16. The touch sensing device according to claim 15, wherein, The MCU processes first touch data of the first region of the touch panel, second touch data of the second region, and third touch data of the boundary touch region within the second region based on the touch sensing signals, generates large touch information based on the first touch data, the second touch data, and the third touch data, and transmits the generated large touch information to a host.

17. The touch sensing device according to claim 16, wherein, When generating the large touch information, the MCU generates touch tracking information based on the first touch data of the first region, the second touch data of the second region, and the third touch data of the boundary touch region within the second region, and transmits the touch tracking information to the host together with the large touch information.

18. A touch IC, the touch IC being connected to a touch sensor corresponding to a region of a touch panel, and the touch IC comprising: A communication unit, the communication unit being connected to another touch IC to communicate with it, the another touch IC being connected to a touch sensor corresponding to another region of the touch panel; And A touch data processing unit, the touch data processing unit being configured to generate touch data of the one region of the touch panel, Wherein, the touch data processing unit performs the following operations: when a touch sensing signal is input from the touch sensor positioned in the one region of the touch panel, check whether there is a touch on a boundary surface of the one region adjacent to the another region based on the touch sensing signal; when there is a touch on the boundary surface, check whether the touch is a large touch larger than a preset size; when the touch is a large touch, separate a boundary touch region adjacent to the boundary surface from the entire region of the large touch; and transmit boundary touch information of the separated boundary touch region to the another touch IC.

19. The touch IC according to claim 18, the touch IC further comprising: A touch signal detection unit, the touch signal detection unit being configured to detect the touch sensing signal from the touch sensor; A signal processing unit, configured to process the detected touch sensing signal to generate touch sensing data; and a memory, configured to store the touch sensing data.

20. A touch sensing method for a touch sensing device, the touch sensing device including a first touch IC and a second touch IC, the first touch IC being configured to generate first touch data corresponding to a first area of a touch panel, the second touch IC being configured to generate second touch data corresponding to a second area of the touch panel adjacent to the first area, the touch sensing method comprising the following steps: When a touch sensing signal is input from a touch sensor positioned in the second area of the touch panel, checking, by the second touch IC based on the touch sensing signal, whether there is a touch on a boundary surface of the second area adjacent to the first area; When there is the touch on the boundary surface, checking, by the second touch IC, whether the touch is a large touch larger than a preset size; When the touch is a large touch, separating, by the second touch IC, a boundary touch area adjacent to the boundary surface from the entire area of the large touch; and transmitting, by the second touch IC, boundary touch information of the separated boundary touch area to the first touch IC.

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