Touch display device

Abstract

Disclosed embodiments relate to a touch display device, in a structure in which a touch electrode line is provided to be divided over a plurality of sub-areas included in an active area, by synchronizing driving of the touch electrode line at a boundary of adjacent sub-areas, or by performing a differential sensing process by sharing a touch sensing signal detected from the touch electrode line, it is possible to improve accuracy of touch sensing for an area at a boundary of adjacent sub-areas.

Description

Technical Field

[0001] Embodiments of this disclosure relate to touch display devices. Background Technology

[0002] Display devices used to provide various functions to users detect the touch of a user's finger or pen on the display panel and perform input processing based on the detected touch.

[0003] The display device may include, for example, multiple touch electrodes disposed in the display panel. The display device can drive the multiple touch electrodes and can sense the user's touch by detecting the capacitance change generated when the user touches the display panel.

[0004] In addition to the structures for sensing touch, display devices may also include various structures for displaying images. To improve touch sensing performance without compromising the image display performance of the display device, methods are needed to implement touch electrodes within the display panel. Summary of the Invention

[0005] The embodiments of this disclosure can provide a touch display device that can reduce load and improve touch sensing accuracy by means of touch electrodes and touch wiring disposed on the display panel.

[0006] Additional features and aspects will be set forth in the following description and will be apparent in part from the specification or may be learned by practice of the inventive concept provided herein. Other features and aspects of the inventive concept may be realized and obtained through the structures specifically pointed out in the written description, claims, and drawings.

[0007] Embodiments of this disclosure may provide a touch display device comprising: a plurality of light-emitting elements located on an active region of a display panel; an encapsulation layer located on the plurality of light-emitting elements; a plurality of X-touch electrode lines located on the encapsulation layer and including two or more X-touch electrodes electrically connected to each other along a first direction, and respectively disposed on each of a plurality of sub-regions included in the active region; a plurality of Y-touch electrode lines located on the encapsulation layer and including two or more Y-touch electrodes electrically connected to each other along a second direction intersecting the first direction, and respectively disposed on each of the plurality of sub-regions; and a plurality of touch wiring lines electrically connected to each of the plurality of X-touch electrode lines and the plurality of Y-touch electrode lines, wherein the plurality of sub-regions include a first sub-region and a second sub-region divided by a boundary of the first direction, and wherein the driving period of the first X-touch electrode line closest to the boundary of the first direction among the plurality of first X-touch electrode lines disposed on the first sub-region is synchronized with the driving period of the second X-touch electrode line closest to the boundary of the first direction among the plurality of second X-touch electrode lines disposed on the second sub-region.

[0008] Embodiments of this disclosure may provide a touch display device comprising: a plurality of X-touch electrode lines, each including two or more X-touch electrodes electrically connected to each other along a first direction, and respectively disposed on each of a plurality of sub-regions included in an active region; and a plurality of Y-touch electrode lines, each including two or more Y-touch electrodes electrically connected to each other along a second direction intersecting the first direction, and respectively disposed on each of a plurality of sub-regions, wherein the plurality of sub-regions include a first sub-region and a second sub-region divided by a boundary of the first direction, and wherein the interval between the time period for applying a touch driving signal to the first X-touch electrode line closest to the boundary of the first direction among the plurality of first X-touch electrode lines disposed on the first sub-region and the time period for applying a touch driving signal to the second X-touch electrode line closest to the boundary of the first direction among the plurality of second X-touch electrode lines disposed on the second sub-region is less than the interval between the time period for applying a touch driving signal to the first X-touch electrode line closest to the boundary of the first direction and the time period for applying a touch driving signal to the remaining second X-touch electrode lines.

[0009] Embodiments of this disclosure may provide a touch display device comprising: a plurality of X-touch electrode lines, each including two or more X-touch electrodes electrically connected to each other along a first direction and respectively disposed on each of a plurality of sub-regions included in an active region; and a plurality of Y-touch electrode lines, each including two or more Y-touch electrodes electrically connected to each other along a second direction intersecting the first direction and respectively disposed on each of the plurality of sub-regions, wherein touch sensing signals are detected from the remaining Y-touch electrode lines of the plurality of Y-touch electrode lines, excluding the Y-touch electrode line closest to the boundary of the second direction, by a differential sensing method.

[0010] According to various embodiments of this disclosure, by synchronizing the driving periods of the touch driving electrodes located on both sides of the boundary of the sub-region, the accuracy of touch sensing of the area adjacent to the boundary of the sub-region can be improved.

[0011] According to various embodiments of this disclosure, differential sensing processing is performed by sharing sensing data based on touch sensing signals detected from touch sensing electrodes located on both sides of the boundary of the sub-region, thus enabling differential sensing with improved accuracy over the entire area of ​​the display panel.

[0012] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon review of the following figures and detailed description. All such additional systems, methods, features, and advantages are intended to be included within this specification, within the scope of this disclosure, and protected by the appended claims. Nothing in this section should be construed as limiting those claims. Other aspects and advantages are discussed below in conjunction with embodiments of this disclosure. It is to be understood that the foregoing general description and the following detailed description of this disclosure are exemplary and illustrative, intended to provide further explanation of the claimed disclosure. Attached Figure Description

[0013] The above and other objects, features and advantages of this disclosure will become clearer from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0014] Figure 1 This is a diagram that schematically illustrates the structure of a touch display device according to an embodiment of the present disclosure;

[0015] Figure 2 This is a diagram illustrating an example of the circuit structure of a sub-pixel included in a touch display device according to an embodiment of the present disclosure;

[0016] Figures 3 to 5 This is a diagram illustrating an example of a touch sensor structure included in a touch display device according to an embodiment of the present disclosure;

[0017] Figures 6 to 10 This is a diagram illustrating an example of a driving method for touch sensing using a touch sensor structure included in a touch display device according to an embodiment of the present disclosure;

[0018] Figure 11 This is a diagram illustrating an example of the structure of the touch electrodes included in the touch sensor structure of a touch display device according to an embodiment of the present disclosure;

[0019] Figure 12 This is an example of passing through Figure 11 The structure of the touch electrode shown is implemented Figure 5 A diagram illustrating an example of a touch sensor structure;

[0020] Figure 13 This is a diagram illustrating an example of an electrode structure constituting a touch sensor structure of a touch display device according to an embodiment of the present disclosure;

[0021] Figure 14 This is a diagram illustrating an example of the arrangement relationship between the electrodes constituting the touch sensor structure and the structures included in the sub-pixels in a touch display device according to an embodiment of the present disclosure.

[0022] Figure 15This is an example Figure 14 A diagram showing an example of the cross-sectional structure of the AA′ section;

[0023] Figures 16 to 18 This is a diagram illustrating a specific example of a touch sensor structure of a touch display device according to an embodiment of the present disclosure being implemented on an active area of ​​a display panel;

[0024] Figure 19 This is a schematic diagram illustrating a specific example of a touch sensor structure of a touch display device according to an embodiment of the present disclosure being implemented on the outer region of the boundary between the active region and the non-active region of the display panel.

[0025] Figure 20 This is a diagram illustrating a specific example of a touch sensor structure of a touch display device according to an embodiment of the present disclosure being implemented between an active region and a non-active region of a display panel;

[0026] Figure 21 This is a diagram illustrating a specific example of a touch sensor structure of a touch display device according to an embodiment of the present disclosure being implemented on a non-active area of ​​a display panel, including a pad area; and

[0027] Figure 22 and Figure 23 This is a diagram illustrating an example of a connection structure between a touch pad and a touch driving circuit disposed on the pad area of ​​a display panel of a touch display device according to an embodiment of the present disclosure.

[0028] Throughout the accompanying drawings and detailed description, unless otherwise stated, the same reference numerals should be understood to refer to the same elements, features, and structures. The relative sizes and depictions of these elements may be exaggerated for clarity, illustrative purposes, and convenience. Detailed Implementation

[0029] In the following description of examples or embodiments of this disclosure, reference will be made to the accompanying drawings, which illustrate specific examples or embodiments that may be implemented, and the same reference numerals may be used in the drawings to refer to the same or similar components, even if they are shown in different drawings. Furthermore, in the following description of examples or embodiments of this disclosure, detailed descriptions of well-known functions and components incorporated herein may be omitted where such detailed descriptions may obscure the subject matter of some embodiments of this disclosure. Terms such as “comprising,” “having,” “including,” “constituting,” “made of,” “composed of,” and “formed from” as used herein are generally intended to allow for the addition of additional components, unless these terms are used in conjunction with the term “only.” As used herein, singular forms are intended to include plural forms unless the context clearly indicates otherwise.

[0030] This document may use terms such as “first,” “second,” “A,” “B,” “(A),” or “(B)” to describe elements of this disclosure. Each of these terms is not used to define the nature, order, sequence, or number of elements, but only to distinguish the corresponding element from other elements.

[0031] When it is mentioned that the first element is "connected to or coupled to" the second element, or "in contact with or overlaps" the second element, it should be understood that not only can the first element be "directly connected to or coupled to" the second element or "directly in contact with or overlaps" the second element, but a third element can also be "inserted" between the first and second elements, or the first and second elements can be "connected to or coupled to" each other, or "in contact with or overlaps" each other via a fourth element. Here, the second element can be included in at least one of two or more elements that are "connected to or coupled to" each other, or "in contact with or overlaps" each other.

[0032] When using time-related terms such as “after,” “following,” “next,” or “before,” to describe a process or operation of an element or structure, or a flow or step in an operating method, processing method, or manufacturing method, these terms may be used to describe a discontinuous or non-sequential process or operation, unless the terms “directly” or “immediately following” are used together.

[0033] Furthermore, when referring to any dimension, relative size, etc., even without a specified description, it should be assumed that the numerical values ​​or corresponding information of an element or feature (e.g., level, range, etc.) include the range of tolerances or errors that can be caused by various factors (e.g., process factors, internal or external influences, noise, etc.). Additionally, the term "may" fully encompasses all the meanings of the term "able to".

[0034] In the following, various embodiments of this disclosure will be described in detail with reference to the accompanying drawings.

[0035] Figure 1 This is a diagram that schematically illustrates the structure of a touch display device 100 according to an embodiment of the present disclosure. Figure 2 This is a diagram illustrating an example of the circuit structure of a sub-pixel SP included in a touch display device 100 according to an embodiment of the present disclosure.

[0036] Reference Figure 1 The touch display device 100 may include a display panel 110, and a gating drive circuit 120, a data drive circuit 130, and a controller 140 for driving the display panel 110. In addition to the configuration for display driving, the touch display device 100 may also include a configuration for touch sensing.

[0037] The display panel 110 may include an active region AA with multiple sub-pixels SP, and a non-active region NA located outside the active region AA. Multiple gate lines GL and multiple data lines DL may be arranged on the display panel 110. The multiple sub-pixels SP may be located in the area where the gate lines GL and data lines DL intersect.

[0038] The gating drive circuit 120 can be controlled by the controller 140. The gating drive circuit 120 can sequentially output scanning signals to multiple gating lines GL arranged on the display panel 110, thereby controlling the driving timing of multiple sub-pixels SP.

[0039] The gating drive circuit 120 may include one or more gating driver integrated circuits (GDICs). Depending on the driving method, the gating drive circuit 120 may be located only on one side of the display panel 110, or it may be located on both sides of it.

[0040] Each gating driver integrated circuit (GDIC) can be connected to the bonding pads of the display panel 110 via a tape-on-board (TAB) method or a chip-on-glass (COG) method. Alternatively, each gating driver integrated circuit (GDIC) can be implemented using an in-board gating (GIP) method and then directly disposed on the display panel 110. Alternatively, the gating driver integrated circuit (GDIC) can be integrated and disposed on the display panel 110. Alternatively, each gating driver integrated circuit (GDIC) can be implemented using a chip-on-film (COF) method in which components are mounted on a film connected to the display panel 110.

[0041] The data driving circuit 130 can receive image data DATA from the controller 140 and convert the image data DATA into an analog data voltage Vdata. The data driving circuit 130 can output the analog data voltage Vdata to each data line DL according to the timing of the scan signal applied through the gate line GL, so that each of the multiple sub-pixels SP emits light with a brightness according to the image data.

[0042] The data driver circuit 130 may include one or more source driver integrated circuits (SDICs). Each source driver integrated circuit (SDIC) may include a shift register, a latch circuit, a digital-to-analog converter, an output buffer, etc.

[0043] Each source driver integrated circuit (SDIC) can be connected to the bonding pads of the display panel 110 via a tape-on-board (TAB) method or a chip-on-glass (COG) method. Alternatively, each source driver integrated circuit (SDIC) can be directly disposed on the display panel 110. Alternatively, the source driver integrated circuit (SDIC) can be integrated and arranged on the display panel 110. Alternatively, each source driver integrated circuit (SDIC) can be implemented using a chip-on-film (COF) method. In this case, each source driver integrated circuit (SDIC) can be mounted on a film connected to the display panel 110 and can be electrically connected to the display panel 110 via wiring on the film.

[0044] The controller 140 can provide various control signals to the gating drive circuit 120 and the data drive circuit 130, and control the operation of the gating drive circuit 120 and the data drive circuit 130.

[0045] The controller 140 can be mounted on a printed circuit board, flexible printed circuit, etc. The controller 140 can be electrically connected to the gating drive circuit 120 and the data drive circuit 130 via the printed circuit board, flexible printed circuit, etc.

[0046] The controller 140 can cause the gating drive circuit 120 to output a scan signal according to the timing implemented in each frame. The controller 140 can convert data signals received from an external source (e.g., a host system) into a data signal format that conforms to the data drive circuit 130, and then output the converted image data DATA to the data drive circuit 130.

[0047] The controller 140 can receive various timing signals, including vertical synchronization signal VSYNC, horizontal synchronization signal HSYNC, input data enable signal DE, clock signal CLK, etc., as well as image data from an external source (e.g., a host system).

[0048] The controller 140 can generate various control signals using various timing signals received from the outside, and can output the control signals to the gating drive circuit 120 and the data drive circuit 130.

[0049] For example, in order to control the gating drive circuit 120, the controller 140 can output various gating control signals GCS, including gating start pulse GSP, gating shift clock GSC, gating output enable signal GOE, etc.

[0050] The strobe start pulse GSP controls the start timing of operation for one or more strobe driver integrated circuits (GDICs) constituting the strobe drive circuit 120. The strobe shift clock GSC, which serves as a common input to one or more strobe driver integrated circuits (GDICs), controls the shift timing of the scan signal. The strobe output enable signal GOE specifies timing information for one or more strobe driver integrated circuits (GDICs).

[0051] In addition, in order to control the data drive circuit 130, the controller 140 can output various data control signals DCS, including the source start pulse SSP, the source sampling clock SSC, and the source output enable signal SOE.

[0052] The source start pulse SSP can control the data sampling start timing of one or more source driver integrated circuits (SDICs) constituting the data drive circuit 130. The source sampling clock SSC can be a clock signal used to control the timing of data sampling in each source driver integrated circuit (SDIC). The source output enable signal SOE can control the output timing of the data drive circuit 130.

[0053] The touch display device 100 may also include a power management integrated circuit, which is used to provide various voltages or currents to the display panel 110, the gating drive circuit 120, the data drive circuit 130, etc., or to control the various voltages or currents to be provided.

[0054] Each subpixel SP is an area defined by the intersection of the gate line GL and the data line DL, and depending on the type of touch display device 100, a liquid crystal layer or a light-emitting element may be disposed on the subpixel SP.

[0055] For example, when the touch display device 100 is an organic light-emitting display device, organic light-emitting diodes (OLEDs) and various circuit elements can be disposed on multiple sub-pixels SP. Since the current supplied to the organic light-emitting diodes (OLEDs) disposed on the sub-pixels SP is controlled by the various circuit elements, each sub-pixel SP can present a brightness corresponding to the image data.

[0056] Alternatively, in some cases, light-emitting diodes (LEDs), micro LEDs (μLEDs), or quantum dot LEDs can be disposed on sub-pixels (SPs).

[0057] Reference Figure 2 Each of the multiple sub-pixels SP may include a light-emitting element ED. The sub-pixel SP may include a drive transistor DRT that controls the drive current supplied to the light-emitting element ED.

[0058] The subpixel SP may include at least one circuit element other than the light-emitting element ED and the driving transistor DRT for driving the subpixel SP.

[0059] For example, a sub-pixel SP may include a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, and a storage capacitor Cstg.

[0060] Figure 2 The example shown represents a 6T1C structure with 6 transistors and 1 capacitor, but the embodiments of this disclosure are not limited thereto. Figure 2 The example shown represents a case where the transistor is P-type, but at least some of the transistors set on the sub-pixel SP can be N-type.

[0061] Furthermore, the transistors disposed on the sub-pixel SP may, for example, include a semiconductor layer made of low-temperature polycrystalline silicon (LTPS) or a semiconductor layer made of oxide semiconductor. In some cases, transistors including a semiconductor layer made of LTPS and transistors including a semiconductor layer made of oxide semiconductor may be disposed together on the sub-pixel SP.

[0062] The first transistor T1 can be electrically connected between the data line DL and the first node N1. The first transistor T1 can be controlled by the first scan signal Scan1 provided through the first gate line GL1. The first transistor T1 can control the application of the data voltage Vdata to the first node N1.

[0063] The second transistor T2 can be electrically connected between the second node N2 and the third node N3. The second node N2 can be the gate node of the driving transistor DRT. The third node N3 can be the drain node or the source node of the driving transistor DRT. The second transistor T2 can be controlled by the second scan signal Scan2 provided through the second gate line GL2. The second transistor T2 can perform the operation of compensating for threshold voltage variations of the driving transistor DRT.

[0064] The third transistor T3 can be electrically connected between the line providing the reference voltage Vref and the first node N1. The third transistor T3 can be controlled by the light emission control signal EM provided through the light emission control line EML. The third transistor T3 can control the first node N1 to be discharged or to apply the reference voltage Vref to the first node N1.

[0065] The fourth transistor T4 can be electrically connected between the third node N3 and the fifth node N5. The fifth node N5 can be electrically connected to the light-emitting element ED. The fourth transistor T4 can be controlled by the light-emitting control signal EM provided through the light-emitting control line EML. The fourth transistor T4 can control the timing of providing drive current to the light-emitting element ED.

[0066] The fifth transistor T5 can be electrically connected between the line providing the reference voltage Vref and the fifth node N5. The fifth transistor T5 can be controlled by the second scan signal Scan2 provided through the second gate line GL2. The fifth transistor T5 can control the fifth node N5 to be discharged or to apply the reference voltage Vref to the fifth node N5.

[0067] The driving transistor DRT can be electrically connected between the fourth node N4 and the third node N3. The fourth node N4 can be electrically connected to the line providing the first driving voltage VDD. The first driving voltage VDD can be, for example, a high-level driving voltage. The fourth node N4 can be the source node or the drain node of the driving transistor DRT.

[0068] The driving transistor DRT can be controlled by the difference between the voltage at the second node N2 and the voltage at the fourth node N4. The driving transistor DRT can control the driving current supplied to the light-emitting element ED.

[0069] The driving transistor DRT may include a back gate electrode electrically connected to a fourth node N4. The back gate electrode, electrically connected to the source node of the driving transistor DRT, allows for stable current output of the driving transistor DRT. For example, the back gate electrode can be configured using a metal layer to block external light from entering the channel of the driving transistor DRT.

[0070] The light-emitting element ED can be electrically connected between the fifth node N5 and the line providing the second driving voltage VSS. The second driving voltage VSS can be, for example, a low-potential driving voltage.

[0071] The light-emitting element ED has a first electrode E1 electrically connected to the fifth node N5, a second electrode E2 to which a second driving voltage VSS is applied, and a light-emitting layer EL disposed between the first electrode E1 and the second electrode E2.

[0072] The light-emitting element (ED) can display brightness based on the drive current provided by the driving transistor DRT. The driving timing of the ED can be controlled by the fourth transistor T4.

[0073] Brief description Figure 2 The driving timing of the sub-pixel SP shown can be achieved by providing a second scan signal Scan2 with a conduction level via the second gate line GL2. Since the transistor on the sub-pixel SP is P-type, the conduction level can be low.

[0074] The second transistor T2 and the fifth transistor T5 can be turned on by the second scan signal Scan2, which has a conduction level.

[0075] With the second transistor T2 turned on, the second node N2 and the third node N3 can be electrically connected. The threshold voltage of the driving transistor DRT, which reflects the voltage of the first driving voltage VDD, can be applied to the second node N2 through the second transistor T2. This process can be used to compensate for changes in the threshold voltage of the driving transistor DRT.

[0076] With the fifth transistor T5 turned on, the reference voltage Vref can be applied to the fifth node N5. The fifth node N5 can then be initialized.

[0077] Subsequently, a first scan signal Scan1 with a conduction level can be provided through the first strobe line GL1.

[0078] The first transistor T1 can be turned on by the first scan signal Scan1, which has a conduction level.

[0079] With the first transistor T1 turned on, the data voltage Vdata can be applied to the first node N1.

[0080] The state can be transformed into a data voltage Vdata and a first drive voltage VDD reflecting the threshold voltage of the drive transistor DRT, which are applied to the two ends of the storage capacitor Cst.

[0081] Subsequently, the light control signal EM can be provided through the light control line EML.

[0082] The third transistor T3 and the fourth transistor T4 can be turned on.

[0083] With the third transistor T3 turned on, the voltage of the first node N1 can be changed to the reference voltage Vref. The voltage of the second node N2, which is connected to the first node N1, can change according to the voltage change of the first node N1.

[0084] The state can be transformed into a state where the threshold voltage of the driving transistor DRT and the data voltage Vdata are reflected in the first driving voltage VDD applied to the second node N2, and the state can also be transformed into a state where the first driving voltage VDD is applied to the fourth node N4. The difference between the voltage of the second node N2 and the voltage of the fourth node N4 can be a voltage reflecting the data voltage Vdata and the threshold voltage of the driving transistor DRT. The driving current corresponding to the data voltage Vdata can be provided by the driving transistor DRT.

[0085] With the fourth transistor T4 turned on, the drive current provided by the driving transistor DRT can be supplied to the light-emitting element ED.

[0086] The light-emitting element (ED) can display brightness according to the driving current, and the sub-pixels (SP) including the light-emitting element (ED) can display an image corresponding to the image data.

[0087] Furthermore, embodiments of this disclosure can provide the function of sensing user touches on the display panel 110 by implementing a touch sensor structure on the display panel 110 that displays images.

[0088] Figures 3 to 5 This is a diagram illustrating an example of a touch sensor structure included in a touch display device 100 according to an embodiment of the present disclosure.

[0089] Reference Figure 3 The touch display device 100 may include multiple touch electrode lines TEL and multiple touch wiring lines TL disposed in the display panel 110. The touch display device 100 may include a touch driving circuit 150 for driving the multiple touch electrode lines TEL and multiple touch wiring lines TL.

[0090] Each of the multiple touch electrode lines TEL can be electrically connected to the touch driver circuit 150 via touch wiring TL. The touch driver circuit 150 can be configured separately, or in some cases, it can be integrated with circuitry for display driving. For example, the touch driver circuit 150 can be configured to be integrated with the data driver circuit 130.

[0091] Each of the multiple touch electrode lines TEL may include multiple touch electrodes TE electrically connected to each other in one direction. Furthermore, each of the multiple touch electrode lines TEL may include multiple touch electrode connection patterns CL that electrically connect the multiple touch electrodes TE to each other.

[0092] For example, each of the multiple X-touch electrode lines X-TEL may include multiple X-touch electrodes X-TE arranged in a first direction and multiple X-touch electrode connection patterns X-CL electrically connecting the multiple X-touch electrodes X-TE to each other.

[0093] Each of the multiple Y-touch electrode lines Y-TEL may include multiple Y-touch electrodes Y-TE arranged in a second direction intersecting the first direction and multiple Y-touch electrode connection patterns Y-CL electrically connecting the multiple Y-touch electrodes Y-TE to each other.

[0094] The X-touch electrode line X-TEL and the Y-touch electrode line Y-TEL can be disposed on different layers. Alternatively, the X-touch electrode X-TE and the Y-touch electrode Y-TE can be disposed on the same layer. In this case, one of the X-touch electrode connection pattern X-CL and the Y-touch electrode connection pattern Y-CL can be disposed on a different layer than the touch electrode TE.

[0095] The touch electrode TE can be, for example, quadrilateral, but is not limited to this.

[0096] The touch electrode TE can be made of a transparent conductive material and can be configured not to affect the image display function of the display panel 110.

[0097] Alternatively, the touch electrode TE can be made of an opaque metal. In this case, the touch electrode TE can be shaped such that an opening corresponds to the area of ​​the light-emitting element ED disposed in the display panel 110. For example, the touch electrode TE is implemented as a mesh and configured to avoid the light-emitting area.

[0098] In a structure in which multiple X-touch electrode lines X-TEL and multiple Y-touch electrode lines Y-TEL are arranged to intersect each other, the touch driving circuit 150 can drive the touch electrode lines TEL and perform touch sensing through the touch wiring TL.

[0099] For example, one of the X-touch electrode line X-TEL and the Y-touch electrode line Y-TEL can be a touch driving electrode to which a touch driving signal is applied. The other of the X-touch electrode line X-TEL and the Y-touch electrode line Y-TEL can be a touch sensing electrode to which a touch sensing signal is detected.

[0100] The touch driving circuit 150 can detect the change in mutual capacitance generated when a user touches the device under different conditions when different signals are applied to the X-touch electrode line X-TEL and the Y-touch electrode line Y-TEL.

[0101] The touch driving circuit 150 can send sensing data based on detected changes in mutual capacitance to the touch controller. The touch controller can detect whether a touch has occurred and the touch coordinates on the display panel 110 based on the sensing data received from the touch driving circuit 150.

[0102] The touch electrode line TEL set in the display panel 110 can be configured to be segmented in multiple areas of the active area AA.

[0103] Because the touch electrode lines (TELs) are segmented in each area, the load on the touch electrode lines (TELs) can be reduced. This reduces the load on the touch electrode lines (TELs) and improves touch sensing performance even with an increased display panel area (110).

[0104] Reference Figure 4 The active area AA of the display panel 110 may include multiple sub-areas SAA divided by a boundary in a first direction and a boundary in a second direction.

[0105] An active region AA may include at least two or more sub-regions SAA divided by a first boundary BL1 according to a first direction. An active region AA may include at least two or more sub-regions SAA divided by a second boundary BL2 according to a second direction.

[0106] For example, the first sub-region SAA1 and the second sub-region SAA2 can be separated by the first boundary BL1. The third sub-region SAA3 and the fourth sub-region SAA4 can also be separated by the first boundary BL1.

[0107] The first subregion SAA1 and the third subregion SAA3 can be separated by the second boundary BL2. The second subregion SAA2 and the fourth subregion SAA4 can also be separated by the second boundary BL2.

[0108] Figure 4 An example is shown where an active region AA is divided into four sub-regions SAA, but the active region AA can be divided into multiple sub-regions SAA by the first boundary BL1 and the second boundary BL2.

[0109] The touch electrode line TEL set on each of the multiple sub-regions SAA can be set separately from the touch electrode lines TEL set on different sub-regions SAA.

[0110] The touch electrode line TEL, located on each of the multiple sub-regions SAA, can be driven independently.

[0111] For example, the first X-touch electrode line X-TEL-1 disposed on the first sub-region SAA1 can be electrically connected to the first touch driving circuit 151 through the first X-touch wiring X-TL-1. The first Y-touch electrode line Y-TEL-1 can be electrically connected to the first touch driving circuit 151 through the first Y-touch wiring Y-TL-1.

[0112] The second X-touch electrode line X-TEL-2, located on the second sub-region SAA2, can be electrically connected to the second touch driver circuit 152 via the second X-touch wiring X-TL-2. The second Y-touch electrode line Y-TEL-2 can be electrically connected to the second touch driver circuit 152 via the second Y-touch wiring Y-TL-2.

[0113] The first X-touch electrode line X-TEL-1 and the first Y-touch electrode line Y-TEL-1 can be driven by the first touch driving circuit 151. The second X-touch electrode line X-TEL-2 and the second Y-touch electrode line Y-TEL-2 can be driven by the second touch driving circuit 152. The touch electrode lines TEL of the third sub-region SAA3 and the fourth sub-region SAA4 can be configured with a similar structure to the touch electrode lines TEL of the first sub-region SAA1 and the second sub-region SAA2, and can be driven in a similar manner.

[0114] The touch electrode line TEL located on the first sub-region SAA1 and the touch electrode line TEL located on the second sub-region SAA2 are electrically separated and driven by different touch driving circuits 150, which can reduce the load on touch sensing and improve the performance of touch sensing.

[0115] Furthermore, in some cases, the touch electrode lines (TELs) disposed on two or more sub-regions (SAA) can be driven by the same touch driving circuit 150. For example, the touch electrode lines (TELs) disposed on the first sub-region (SAA1) and the touch electrode lines (TELs) disposed on the second sub-region (SAA2) can be driven by the same touch driving circuit 150. The touch electrode lines (TELs) disposed on the third sub-region (SAA3) and the fourth sub-region (SAA4) can be driven by the same touch driving circuit 150. Alternatively, for example, the touch electrode lines (TELs) disposed on the first sub-region (SAA1), the second sub-region (SAA2), the third sub-region (SAA3), and the fourth sub-region (SAA4) can be driven by the same touch driving circuit 150. In this case, since the touch electrode lines (TELs) disposed on each sub-region (SAA) are configured separately, the load on the touch electrode lines (TELs) can be reduced and the touch sensing performance can be improved.

[0116] As described above, in a structure where the touch electrode lines TEL are respectively set on each of the multiple sub-regions SAA, some of the touch wiring TL can be set on the active region AA.

[0117] For example, the first X-touch wiring X-TL-1, which is electrically connected to the first X-touch electrode line X-TEL-1 of the first sub-region SAA1, and the second X-touch wiring X-TL-2, which is electrically connected to the second X-touch electrode line X-TEL-2 of the second sub-region SAA2, can be set on the non-active region NA.

[0118] The second Y-touch wiring Y-TL-2, which is electrically connected to the second Y-touch electrode line Y-TEL-2 of the second sub-region SAA2, can be located on the non-active region NA.

[0119] A portion of the first Y-touch wiring Y-TL-1, which is electrically connected to the first Y-touch electrode line Y-TEL-1 of the first sub-region SAA1, can be located on the active region AA.

[0120] A portion of the first Y-touch wiring Y-TL-1 can be disposed on the second sub-region SAA2. The first Y-touch wiring Y-TL-1 can pass through the second sub-region SAA2 and can be electrically connected to the first Y-touch electrode line Y-TEL-1 disposed on the first sub-region SAA1.

[0121] Since a portion of the first Y-touch wiring Y-TL-1 is disposed on the second sub-region SAA2, at least one of the second X-touch electrode line X-TEL-2 or the second Y-touch electrode line Y-TEL-2 disposed on the second sub-region SAA2 can be configured to be separated on the region where the first Y-touch wiring Y-TL-1 is disposed. Figure 4 An example is illustrated where, due to the arrangement of the first Y-touch wiring Y-TL-1, the second Y-touch electrode line Y-TEL-2 is configured to be segmented on the second sub-region SAA2.

[0122] As described above, when the touch electrode line TEL is divided into sub-regions SAA, the number of touch wiring TLs connected to the touch electrode line TEL increases. As the number of touch wiring TLs increases, the non-active region NA increases due to the arrangement of the touch wiring TLs. However, since the first Y-touch wiring Y-TL-1 is electrically connected to the first Y-touch electrode line Y-TEL-1 of the first sub-region SAA1 through the active region AA, it is not necessary to add a separate region on the non-active region NA for the arrangement of the first Y-touch wiring Y-TL-1. A touch sensor structure divided into sub-regions SAA can be realized without increasing the non-active region NA due to the addition of the first Y-touch wiring Y-TL-1.

[0123] The touch sensor structure, divided into multiple sub-regions SAA, can be divided into an upper touch sensor portion and a lower touch sensor portion based on a first boundary BL1. Furthermore, the touch sensor structure can be divided into a left touch sensor portion and a right touch sensor portion based on a second boundary BL2. Here, the lower touch sensor portion can be positioned closer to the pads connecting the touch wiring TL than the upper touch sensor portion. That is, the distance between the lower touch sensor portion and the area where the pads connecting the touch wiring TL are located can be smaller than the distance between the upper touch sensor portion and the area where the pads are located.

[0124] Furthermore, since the area of ​​the second Y-touch electrode line Y-TEL-2 is reduced by the first Y-touch wiring Y-TL-1, the difference in touch sensing sensitivity can be prevented by making the area of ​​the first Y-touch electrode line Y-TEL-1 the same or similar to the area of ​​the second Y-touch electrode line Y-TEL-2.

[0125] Reference Figure 5 At least one first dummy electrode DME1, separate from the first Y-touch electrode line Y-TEL-1, may be disposed on at least a portion of the area in the first sub-region SAA1 corresponding to the area in the second sub-region SAA2 where the first Y-touch wiring Y-TL-1 is disposed.

[0126] The first dummy electrode DME1 can be electrically separated from the first Y-touch electrode line Y-TEL-1.

[0127] The width of the area where the first dummy electrode DME1 is disposed can be the same as or similar to the width of the first Y-touch wiring Y-TL-1. Alternatively, the width of the area where the first dummy electrode DME1 is disposed can be the same as or similar to the width of the area on the second sub-region SAA2 where the second Y-touch electrode line Y-TEL-2 is not disposed. Furthermore, the spacing between the two portions of the first Y-touch electrode line Y-TEL-1 disposed on both sides of the first dummy electrode DME1 can be the same as or similar to the spacing between the two portions of the second Y-touch electrode line Y-TEL-2 disposed on both sides of the first Y-touch wiring Y-TL-1.

[0128] The area of ​​the first Y-touch electrode line Y-TEL-1 disposed on the first sub-region SAA1 can be substantially the same as the area of ​​the second Y-touch electrode line Y-TEL-2 disposed on the second sub-region SAA2.

[0129] Even if the first Y-touch wiring Y-TL-1 is configured to pass through the first sub-region SAA1, it is possible to prevent or reduce the difference between the touch sensitivity of the first Y-touch electrode line Y-TEL-1 in the first sub-region SAA1 and the touch sensitivity of the second Y-touch electrode line Y-TEL-2 in the second sub-region SAA2.

[0130] According to embodiments of this disclosure, since the active region AA is divided into multiple sub-regions SAA, and touch is sensed by providing touch electrode lines TEL on each of the multiple sub-regions SAA, the load on the touch electrode lines TEL can be reduced and the touch sensing performance can be improved even if the area of ​​the active region AA is increased.

[0131] Furthermore, by making the areas of the touch electrode lines TELs provided on each sub-region SAA the same or similar to each other, it is possible to prevent differences in touch sensitivity of the touch electrode lines TELs provided on each sub-region SAA.

[0132] Furthermore, by controlling the driving method of the touch electrode lines TELs set on each sub-region SAA, the touch sensing accuracy of the area adjacent to the boundary of the sub-region SAA can be improved.

[0133] Figures 6 to 10 This is a diagram illustrating an example of a driving method for touch sensing using a touch sensor structure included in a touch display device 100 according to an embodiment of the present disclosure. For ease of illustration, Figures 6 to 10 Exemplary examples Figure 4 The driving method of the touch sensor structure shown, but Figures 6 to 10 The driving method of the touch sensor structure in the middle can be applied to Figure 5 The touch sensor structure is shown.

[0134] Reference Figure 6 For example, the active region AA can be divided into four sub-regions SAA1, SAA2, SAA3, and SAA4.

[0135] Each of the four sub-regions SAA1, SAA2, SAA3, and SAA4 can be driven by the first touch driving circuit 151, the second touch driving circuit 152, the third touch driving circuit 153, and the fourth touch driving circuit 154.

[0136] Multiple X-touch electrode lines (X-TEL) and multiple Y-touch electrode lines (Y-TEL) can be set on each of the four sub-regions SAA1, SAA2, SAA3, and SAA4.

[0137] One of the X-touch electrode line X-TEL and the Y-touch electrode line Y-TEL can be a touch driving electrode that provides a touch driving signal TDS. The other of the X-touch electrode line X-TEL and the Y-touch electrode line Y-TEL can be a touch sensing electrode from which a touch sensing signal is detected.

[0138] Figure 6 An exemplary case is illustrated where the Y-touch electrode line Y-TEL is a touch driving electrode and the X-touch electrode line X-TEL is a touch sensing electrode.

[0139] The Y-touch electrode lines Y-TEL, which are set on each sub-region SAA, can be sequentially provided with touch drive signals TDS from the touch drive circuit 150 that drives each sub-region SAA.

[0140] For example, the first touch driving circuit 151 that drives the first sub-region SAA1 can sequentially provide touch driving signals TDS from the first Y-touch electrode line Y-TEL-1 positioned away from the second boundary BL2 to the first touch electrode line Y-TEL-1 positioned close to the second boundary BL2.

[0141] The third touch driving circuit 153 driving the third sub-region SAA3 can sequentially provide touch driving signals TDS from the third Y-touch electrode line Y-TEL-3 positioned away from the second boundary BL2 to the third Y-touch electrode line Y-TEL-3 positioned close to the second boundary BL2.

[0142] Alternatively, in some cases, touch drive signals TDS can be provided sequentially from the Y-touch electrode line Y-TEL positioned near the second boundary BL2 to the Y-touch electrode line Y-TEL positioned away from the second boundary BL2.

[0143] The driving sequence of the first Y-touch electrode line Y-TEL-1 set on the first sub-region SAA1 can be symmetrical with the driving sequence of the third Y-touch electrode line Y-TEL-3 set on the third sub-region SAA3.

[0144] The time period during which the touch drive signal TDS is provided to the first Y-touch electrode line Y-TEL-1 that is closest to the second boundary BL2 among the multiple first Y-touch electrode lines Y-TEL-1 can be synchronized with the time period during which the touch drive signal TDS is provided to the third Y-touch electrode line Y-TEL-3 that is closest to the second boundary BL2 among the multiple third Y-touch electrode lines Y-TEL-3.

[0145] For example, if p (p≥2) Y-touch electrode lines Y-TEL are set on each sub-region SAA, the driving period of the first Y-touch electrode line Y-TEL-1, which is set on the first sub-region SAA1 and is the p-th driven line, can be synchronized with the driving period of the third Y-touch electrode line Y-TEL-3, which is set on the third sub-region SAA3 and is the p-th driven line.

[0146] It can simultaneously drive the first Y-touch electrode line Y-TEL-1 and the third Y-touch electrode line Y-TEL-3, which are closest to the second boundary BL2.

[0147] Alternatively, the interval between the driving periods of the first Y-touch electrode line Y-TEL-1 and the third Y-touch electrode line Y-TEL-3 closest to the second boundary BL2 may be smaller than the interval between the driving periods of the first Y-touch electrode line Y-TEL-1 closest to the second boundary BL2 and the remaining third Y-touch electrode lines Y-TEL-3 other than the third Y-touch electrode line Y-TEL-3 closest to the second boundary BL2.

[0148] Since the first Y-touch electrode line Y-TEL-1 and the third Y-touch electrode line Y-TEL-3, which are closest to the second boundary BL2, are driven synchronously, deviations in the touch sensing signal detected when a touch occurs in the area adjacent to the second boundary BL2 can be prevented, and the accuracy of touch sensing can be improved.

[0149] Furthermore, in the second sub-region SAA2 and the fourth sub-region SAA4, which are adjacent to each other and located on both sides of the second boundary BL2, the Y-touch electrode line Y-TEL can be driven synchronously.

[0150] For example, the time period during which a touch drive signal TDS is provided to the second Y-touch electrode line Y-TEL-2 that is closest to the second boundary BL2 among multiple second Y-touch electrode lines Y-TEL-2 can be synchronized with the time period during which a touch drive signal TDS is provided to the fourth Y-touch electrode line Y-TEL-4 that is closest to the second boundary BL2 among multiple fourth Y-touch electrode lines Y-TEL-4.

[0151] It can simultaneously drive the second Y-touch electrode line Y-TEL-2 and the fourth Y-touch electrode line Y-TEL-4 adjacent to the second boundary BL2.

[0152] Alternatively, the interval between the driving periods of the second Y-touch electrode line Y-TEL-2 and the fourth Y-touch electrode line Y-TEL-4 closest to the second boundary BL2 may be smaller than the interval between the second Y-touch electrode line Y-TEL-2 closest to the second boundary BL2 and the other fourth Y-touch electrode lines Y-TEL-4 besides the fourth Y-touch electrode line Y-TEL-4 closest to the second boundary BL2.

[0153] Since the second Y-touch electrode line Y-TEL-2 and the fourth Y-touch electrode line Y-TEL-4 adjacent to the second boundary BL2 are driven synchronously, the accuracy of touch sensing in the area adjacent to the second boundary BL2 can be improved.

[0154] Furthermore, the driving periods of the first Y-touch electrode line Y-TEL-1, the second Y-touch electrode line Y-TEL-2, the third Y-touch electrode line Y-TEL-3, and the fourth Y-touch electrode line Y-TEL-4, which are closest to the second boundary BL2 in each sub-region SAA, can be synchronized.

[0155] By dividing the touch electrode lines TELs provided on each sub-region SAA and driving them with separate touch driving circuits 150, it is possible to prevent the accuracy of touch sensing from decreasing at the boundaries of the divided sub-region SAA while reducing the load on touch sensing.

[0156] Since the X-touch electrode lines X-TEL disposed on each sub-region SAA are touch sensing electrodes, they can be driven simultaneously for each sub-region SAA. The X-touch electrode lines X-TEL disposed on each sub-region SAA can be driven according to the driving timing of the Y-touch electrode lines Y-TEL, which serve as touch driving electrodes, and can send touch sensing signals to the touch driving circuit 150.

[0157] In addition, in some cases, the X-TEL touch electrode line can be used as a touch driving electrode.

[0158] Reference Figure 7 An example is illustrated by setting q (q≥2) X-touch electrode lines X-TEL on each sub-region SAA.

[0159] Multiple X-touch electrode lines (X-TEL) set on each sub-region SAA can be sequentially provided with touch drive signals (TDS).

[0160] For example, the first touch driving circuit 151 that drives the first sub-region SAA1 can sequentially provide touch driving signals TDS from the first X-touch electrode line X-TEL-1 positioned away from the first boundary BL1 to the first X-touch electrode line X-TEL-1 positioned close to the first boundary BL1.

[0161] The second touch driving circuit 152 that drives the second sub-region SAA2 can sequentially provide touch driving signals TDS from the second X-touch electrode line X-TEL-2, which is positioned away from the first boundary BL1, to the second X-touch electrode line X-TEL-2, which is positioned close to the first boundary BL1.

[0162] Alternatively, in some cases, touch drive signals TDS can be provided from X-touch electrode lines X-TEL positioned close to the first boundary BL1 to X-touch electrode lines X-TEL positioned away from the first boundary BL1.

[0163] The first X-touch electrode line X-TEL-1 and the second X-touch electrode line X-TEL-2, which are closest to the first boundary BL1, can be driven synchronously.

[0164] For example, the time period during which a touch drive signal TDS is provided to the qth driven first X-touch electrode line X-TEL-1 among a plurality of first X-touch electrode lines X-TEL-1 can be the same as the time period during which a touch drive signal TDS is provided to the qth driven second X-touch electrode line X-TEL-2 among a plurality of second X-touch electrode lines X-TEL-2.

[0165] Alternatively, the interval between the time period for providing the touch drive signal TDS to the qth driven first X-touch electrode line X-TEL-1 and the time period for providing the touch drive signal TDS to the qth driven second X-touch electrode line X-TEL-2 can be less than the interval between the time period for providing the touch drive signal TDS to the qth driven first X-touch electrode line X-TEL-1 and the time period for providing the touch drive signal TDS to the remaining second X-touch electrode lines X-TEL-2.

[0166] Similarly, the driving period of the third X-touch electrode line X-TEL-3, which is closest to the first boundary BL1, can be synchronized with the driving period of the fourth X-touch electrode line X-TEL-4, which is closest to the first boundary BL1.

[0167] Furthermore, the driving periods of the first X-touch electrode line X-TEL-1, the second X-touch electrode line X-TEL-2, the third X-touch electrode line X-TEL-3, and the fourth X-touch electrode line X-TEL-4, which are closest to the first boundary BL1, can be synchronized.

[0168] Since the X-TEL line closest to the first boundary BL1 is driven synchronously, the touch sensing accuracy of the region adjacent to the first boundary BL1 can be improved in the structure that divides the sub-region SAA through the first boundary BL1.

[0169] The Y-TEL, which is driven as a touch sensing electrode, can be driven according to the driving timing of the X-TEL and can send touch sensing signals to the touch driving circuit 150.

[0170] Y-TEL touch electrode lines can be driven using a differential sensing method to reduce noise in the touch sensing signal.

[0171] Reference Figure 8 Multiple X-touch electrode lines (X-TELs) located on each sub-region SAA can be sequentially provided with touch drive signals (TDS). The X-touch electrode lines (X-TELs) closest to the first boundary BL1 and located on both sides of the first boundary BL1 can be driven synchronously.

[0172] The Y-TEL touch electrode line can be in a state where a different signal than the touch drive signal TDS is applied during the period when the touch drive signal TDS is applied to the X-TEL touch electrode line. For example, the Y-TEL touch electrode line can be in a state where a constant voltage is applied.

[0173] When a pulsed touch drive signal TDS is applied to the X-touch electrode line X-TEL and a constant voltage is applied to the Y-touch electrode line Y-TEL, the capacitance change of the display panel 110 caused by touch can be detected by the touch sensing signal.

[0174] The touch sensing signal detected from the Y-TEL line can be detected by differential sensing method in order to remove noise from the touch sensing signal detected by the Y-TEL line.

[0175] For example, each of the multiple Y-touch electrode lines Y-TEL can be electrically connected to a sensing unit included in the touch driving circuit 150 via Y-touch wiring Y-TL. The sensing unit may include, for example, an amplifier and a feedback capacitor Cf. The sensing unit can output a signal corresponding to the capacitance change detected from the Y-touch electrode lines Y-TEL.

[0176] The sensing unit that detects touch sensing signals using a differential sensing method can be electrically connected to two or more Y-touch electrode lines (Y-TEL).

[0177] The second sub-region SAA2 and the fourth sub-region SAA4 are described exemplarily. For example, as indicated by 801, the sensing unit that drives the fourth Y-touch electrode line Y-TEL-4, which is the first line in the fourth sub-region SAA4, can be electrically connected to the first line of the fourth Y-touch electrode line Y-TEL-4 and the second line of the fourth Y-touch electrode line Y-TEL-4.

[0178] The sensing unit can output a signal corresponding to the difference between the touch sensing signal detected from the first fourth Y-touch electrode line Y-TEL-4 and the touch sensing signal detected from the second fourth Y-touch electrode line Y-TEL-4. It can output a signal after removing common noise between the first and second fourth Y-touch electrode lines Y-TEL-4.

[0179] It can remove noise from touch sensing signals and improve the accuracy of touch sensing.

[0180] The structure of the sensing unit that drives the Y-TEL, which is positioned closest to the second boundary BL2, can be different from the structure of the other sensing units.

[0181] For example, such as the portion indicated by 802, the sensing unit that drives the fourth Y-touch electrode line Y-TEL-4, which is the p-th line in the fourth sub-region SAA4, can be electrically connected to a fourth Y-touch electrode line Y-TEL-4.

[0182] The p-th Y-touch electrode line Y-TEL-4, located on the fourth sub-region SAA4, can be positioned adjacent to the p-th second Y-touch electrode line Y-TEL-2, located on the second sub-region SAA2. Since the fourth Y-touch electrode line Y-TEL-4 and the second Y-touch electrode line Y-TEL-2 are driven by different touch driving circuits 150, it may be difficult to implement a differential sensing structure between the two Y-touch electrode lines Y-TEL.

[0183] Therefore, the fourth Y-touch electrode line Y-TEL-4 of the p-th bar of the fourth sub-region SAA4 (such as the portion indicated by 802) can be electrically connected to the sensing unit driven according to the single-ended sensing method.

[0184] Furthermore, similar to the fourth Y-touch electrode line Y-TEL-4 of the p-th line in the fourth sub-region SAA4, the second Y-touch electrode line Y-TEL-2 of the p-th line in the second sub-region SAA2 indicated by 803 can also be electrically connected to the sensing unit driven according to the single-ended sensing method.

[0185] The touch controller can perform differential sensing processing based on sensing data from the touch sensing signal detected from the second Y-touch electrode line Y-TEL-2 (which is the p-th line) and sensing data from the touch sensing signal detected from the fourth Y-touch electrode line Y-TEL-4 (which is the p-th line).

[0186] As described above, except for the Y-touch electrode line Y-TEL which is closest to the second boundary BL2, the remaining Y-touch electrode lines Y-TE can be driven according to the differential sensing method and can provide sensing data based on differential sensing.

[0187] The Y-TEL line closest to the second boundary BL2 can be driven using a single-ended sensing method and can provide sensing data based on single-ended sensing.

[0188] The sensing data from single-ended sensing can be shared among the touch driver circuits 150, or it can be shared within the touch controller. Differential sensing processing based on the shared sensing data from single-ended sensing can be performed.

[0189] Therefore, in a structure in which the Y-touch electrode line Y-TEL closest to the second boundary BL2 is not connected to the sensing unit of the differential sensing method, it is possible to provide touch sensing results based on differential sensing.

[0190] Touch sensing processing using a differential sensing method can be performed over the entire active region AA, including the boundaries between sub-regions SAA. This reduces noise in the touch sensing signal and improves the accuracy of touch sensing.

[0191] Furthermore, in some cases, two or more sub-regions SAA can be driven by the same touch driving circuit 150. In this case, a sensing structure using a differential sensing method can be implemented between touch sensing electrodes at adjacent boundaries.

[0192] For example, refer to Figure 9 Multiple sub-regions SAA1, SAA2, SAA3, and SAA4 can be driven by two touch drive circuits 151 and 152.

[0193] The first touch driving circuit 151 can drive the touch electrode lines TEL disposed on the first sub-region SAA1 and the third sub-region SAA3. The second touch driving circuit 152 can drive the touch electrode lines TEL disposed on the second sub-region SAA2 and the fourth sub-region SAA4.

[0194] The second sub-region SAA2 and the fourth sub-region SAA4 are described exemplarily, and the touch electrode lines TEL disposed on each of the second sub-region SAA2 and the fourth sub-region SAA4 can be configured to be physically separated.

[0195] Since the touch electrode lines TEL disposed on the second sub-region SAA2 and the fourth sub-region SAA4 are driven by the second touch driving circuit 152, they can be electrically connected to the sensing unit included in the second touch driving circuit 152.

[0196] For example, as indicated by 901, the first fourth Y-touch electrode line Y-TEL-4 and the second fourth Y-touch electrode line Y-TEL-4 in the fourth sub-region SAA4 can be electrically connected to the sensing unit of the differential sensing method structure. Touch sensing according to the differential sensing method can be performed.

[0197] Furthermore, such as the portion indicated by 902, the fourth Y-touch electrode line Y-TEL-4 of the p-th bar in the fourth sub-region SAA4 can be electrically connected to the sensing unit of the differential sensing method structure with the second Y-touch electrode line Y-TEL-2 of the p-th bar in the second sub-region SAA2.

[0198] Since the second sub-region SAA2 and the fourth sub-region SAA4 are driven by the same second touch driving circuit 152, the fourth Y-touch electrode line Y-TEL-4 and the second Y-touch electrode line Y-TEL-2 located on both sides of the second boundary BL2 can be electrically connected to the sensing unit of the differential sensing method structure and can perform touch sensing according to the differential sensing method.

[0199] Since touch sensing according to the differential sensing method can be performed over the entire active region AA, including the boundary of the sub-region SAA, the noise of the touch sensing signal can be reduced and the accuracy of touch sensing can be improved.

[0200] In addition, through Figure 8 and Figure 9 The described structure of the sensing unit and the driving method of the touch sensing electrodes at the boundary of the adjacent sub-region SAA can be applied to the case of driving touch driving electrodes at different boundaries in a stepwise manner.

[0201] Furthermore, by post-processing the sensing data acquired in the region adjacent to the boundary of the sub-region SAA, the accuracy of touch sensing at the boundary of the sub-region SAA can be further increased.

[0202] refer to Figure 10 It illustrates an example of sensing data acquired at the boundary between the first sub-region SAA1 and the third sub-region SAA3.

[0203] Since each of the multiple sub-regions SAA1, SAA2, SAA3, and SAA4 is driven by separate touch driving circuits 151, 152, 153, and 154, the sensing data acquired by each of the touch driving circuits 151, 152, 153, and 154 can be stored in a memory. The memory may, for example, be included in the touch controller, or may be located within any of the multiple touch driving circuits 150.

[0204] The touch controller can perform normalization processing on the sensing data of the boundaries of neighboring sub-regions (SAAs) in the sensing data stored in the memory. For example, the touch controller can perform calibration to reduce the deviation of the sensing data based on the deviation of the sensing data of the boundaries of neighboring sub-regions (SAAs).

[0205] Normalization can reduce the deviation of sensing data acquired in adjacent areas on both sides of the boundary of sub-region SAA, or the deviation of sensing data generated by separate touch driving circuits 150.

[0206] Touch sensing accuracy at the boundaries of the sub-region SAA can be maintained without degradation.

[0207] As described above, in a touch sensor structure where touch electrode lines (TELs) are set on multiple sub-regions (SAAs) to be segmented, the accuracy of touch sensing for the boundaries of adjacent sub-regions (SAAs) can be improved by synchronously driving the touch electrode lines (TELs) at the boundaries of adjacent sub-regions (SAAs), or by performing differential sensing processing or calibration on the sensing data between adjacent touch electrode lines (TELs).

[0208] Furthermore, the structure of the touch electrode TE included in the touch electrode line TEL can improve the performance of touch sensing.

[0209] Each of the multiple touch electrodes TE included in the touch electrode line TEL, as in the example above, can be quadrilateral, but can have various structures to improve touch sensing performance.

[0210] Figure 11This is a diagram illustrating an example of the structure of the touch electrode TE included in the touch sensor structure of a touch display device 100 according to an embodiment of the present disclosure.

[0211] Reference Figure 11 Examples of the shapes of the X-touch electrode X-TE included in the X-touch electrode line X-TEL and the Y-touch electrode Y-TE included in the Y-touch electrode line Y-TEL are shown. Figure 11 This is a diagram illustrating a structural example of a touch electrode TE, which exemplifies the case where the X-touch electrode line X-TEL and the Y-touch electrode line Y-TEL intersect each other and the X-touch electrode X-TE and the Y-touch electrode are disposed on the same layer.

[0212] X-touch electrode X-TE can have a similar shape to Y-touch electrode Y-TE.

[0213] As an example, the shape of the touch electrode X-TE is described using the X-touch electrode X-TE, which may include at least one main body portion X-TE-a and multiple wing portions X-TE-b.

[0214] The main body of the X-touch electrode X-TE, X-TE-a, can be positioned in either a first direction or a second direction. Figure 11 An example is shown where the main body portion X-TE-a of the X-touch electrode X-TE is positioned in the second direction.

[0215] The wing portion X-TE-b of the X-touch electrode X-TE can be positioned in a direction intersecting with the main body portion X-TE-a. Figure 11 An example is shown where the wing portion X-TE-b of the X-touch electrode X-TE is positioned in a first direction.

[0216] The width of the main body portion X-TE-a of the X-touch electrode X-TE can be the same as the width of the wing portion X-TE-b of the X-touch electrode X-TE. Alternatively, the width of the main body portion X-TE-a of the X-touch electrode X-TE can be greater than the width of the wing portion X-TE-b of the X-touch electrode X-TE.

[0217] The main body portion X-TE-a of the X-touch electrode X-TE can be configured to alternate with the main body portion Y-TE-a of the Y-touch electrode Y-TE in a first direction.

[0218] The wing portion X-TE-b of the X-touch electrode X-TE can be configured to alternate with the wing portion Y-TE-b of the Y-touch electrode Y-TE in a second direction.

[0219] The wing portions X-TE-b of the X-touch electrode X-TE and Y-TE-b of the Y-touch electrode Y-TE can be configured to interlock with each other. The area where the outer lines of the X-touch electrode X-TE and the Y-touch electrode Y-TE face each other can be increased. Furthermore, the length of the boundary between the X-touch electrode X-TE and the Y-touch electrode Y-TE can be increased. This improves the performance of touch sensing based on changes in mutual capacitance between the X-touch electrode X-TE and the Y-touch electrode Y-TE.

[0220] The X-touch electrode X-TE and the Y-touch electrode Y-TE can be configured using electrodes disposed on the same layer. One of the X-touch electrode X-TE and the Y-touch electrode Y-TE can be connected by an electrode disposed on the same layer as the touch electrode TE, and the other can be connected by an electrode disposed on a different layer from the touch electrode TE.

[0221] For example, the Y-touch electrode Y-TE connected in the second direction can be connected by an electrode disposed on the same layer as the touch electrode TE.

[0222] The X-touch electrode X-TE connected in the first direction can be electrically connected by an X-touch electrode connection pattern X-CL disposed on a different layer from the touch electrode TE.

[0223] For example, the X-touch electrode X-TE and the Y-touch electrode Y-TE can be set using a first touch sensor metal TSM1. The X-touch electrode connection pattern X-CL can be set using a second touch sensor metal TSM2.

[0224] The second touch sensor metal TSM2 can be disposed on a different layer than the first touch sensor metal TSM1.

[0225] The X-touch electrode X-TE and the X-touch electrode connection pattern X-CL can be electrically connected to each other through the contact hole CH.

[0226] As described above, the touch electrode line (TEL) can be implemented by using a layer that sets the first touch sensor metal TSM1 and a layer that sets the second touch sensor metal TSM2.

[0227] By using a structure where the touch electrode TE comprises a main body portion TE-a and a wing portion TE-b, the boundary between the X-touch electrode X-TE and the Y-touch electrode Y-TE can be increased, thereby improving touch sensing sensitivity. Furthermore, by separately arranging touch electrode lines TEL on each sub-region SAA of the active region AA, the load can be reduced and touch sensing performance can be improved.

[0228] Figure 12This is an example of passing through Figure 11 The structure of the touch electrode TE shown is used to achieve this. Figure 5 A diagram showing an example of a touch sensor structure. Figure 12 An example is given in Figure 5 The touch sensor structure implemented in the area indicated by 501 shown.

[0229] Reference Figure 11 and Figure 12 For example, the active region AA can be divided into four sub-regions SAA1, SAA2, SAA3, and SAA4 by a first boundary BL1 and a second boundary BL2. The touch electrode lines TEL set on each of the four sub-regions SAA1, SAA2, SAA3, and SAA4 can be set to be separated from each other.

[0230] The touch electrode lines (TELs) set on each sub-region SAA can include multiple X-touch electrode lines (X-TELs) and multiple Y-touch electrode lines (Y-TELs).

[0231] Each of the multiple X-touch electrode lines X-TEL can include multiple X-touch electrodes X-TE. Each of the multiple Y-touch electrode lines Y-TEL can include multiple Y-touch electrodes Y-TE. The X-touch electrodes X-TE and Y-touch electrodes Y-TE can constitute a sensing unit SU.

[0232] Multiple X-touch electrodes X-TE, included in the X-touch electrode line X-TEL, can be electrically connected via the X-touch electrode connection pattern X-CL.

[0233] For example, multiple X-touch electrodes X-TE can be made from a first touch sensor metal TSM1. The X-touch electrode connection pattern X-CL can be made from a second touch sensor metal TSM2 disposed on a different layer than the layer on which the first touch sensor metal TSM1 is disposed.

[0234] The X-touch electrode connection pattern X-CL can be arranged in a first direction and can be electrically connected to the X-touch electrode X-TE through the contact hole CH. Multiple X-touch electrodes X-TE can be electrically connected in the first direction and can form an X-touch electrode line X-TEL.

[0235] For example, the X-touch electrode connection pattern X-CL can be disposed in the area overlapping with the wing portion X-TE-b of the X-touch electrode X-TE. The X-touch electrode connection pattern X-CL may not be disposed in the area overlapping with the wing portion Y-TE-b of the Y-touch electrode Y-TE. A portion of the X-touch electrode connection pattern X-CL may overlap with the main body portion Y-TE-a of the Y-touch electrode Y-TE.

[0236] The width Wa1 of the wing portion X-TE-b of the X-touch electrode X-TE located in the area overlapping with the X-touch electrode connection pattern X-CL can be greater than the width Wa2 of the wing portion X-TE-b of the X-touch electrode X-TE located in the area not overlapping with the X-touch electrode connection pattern X-CL.

[0237] The width Wa1 of the wing portion X-TE-b of the X-touch electrode, located in the area overlapping with the X-touch electrode connection pattern X-CL, can be greater than the width Wa3 of the wing portion Y-TE-b of the Y-touch electrode Y-TE.

[0238] Because the X-touch electrode connection pattern X-CL is configured to overlap with the wide wing portion X-TE-b of the X-touch electrode X-TE, the width or number of X-touch electrode connection patterns X-CL can be increased. This allows for electrical connection of the X-touch electrode X-TE while reducing the resistance of the X-touch electrode connection pattern X-CL.

[0239] In the area where the X-touch electrode connection pattern X-CL is not set, because the width of the wing portion X-TE-b of the X-touch electrode X-TE and the width of the wing portion Y-TE-b of the Y-touch electrode Y-TE are relatively small, it is possible to maintain the structure with increased boundary between the X-touch electrode X-TE and the Y-touch electrode Y-TE and improve the performance of touch sensing.

[0240] X-Touch electrode lines (X-TEL) can be electrically connected to the X-Touch electrode contact pads (X-CP) on the boundary between the active region (AA) and the non-active region (NA).

[0241] For example, the X-touch electrode X-TE, made of the first touch sensor metal TSM1, can be configured to extend into the non-active region NA. The X-touch electrode contact pad X-CP, made of the second touch sensor metal TSM2, can be disposed in the region overlapping with the extended X-touch electrode X-TE. The extended X-touch electrode X-TE and the X-touch electrode contact pad X-CP can be electrically connected through a contact hole CH.

[0242] Alternatively, the extension of the X-touch electrode X-TE disposed on the non-active region NA and the X-touch electrode contact pad X-CP made of the second touch sensor metal TSM2 can be regarded as the X-touch electrode contact pad X-CP.

[0243] The X-touch electrode contact pad X-CP can be electrically connected to the X-touch wiring X-TL on the non-active area NA. The X-touch electrode line X-TEL can be electrically connected to the X-touch wiring X-TL through the X-touch electrode contact pad X-CP. The X-touch wiring X-TL can be made of at least one of a first touch sensor metal TSM1 or a second touch sensor metal TSM2.

[0244] Multiple Y-touch electrodes Y-TE contained in the Y-touch electrode line Y-TEL can be directly connected to each other.

[0245] For example, multiple Y-touch electrodes Y-TE can be made from the first touch sensor metal TSM1. The multiple Y-touch electrodes Y-TE can be connected in a second direction and can form a Y-touch electrode line Y-TEL.

[0246] The Y-touch electrode lines Y-TELs located in the second sub-region SAA2 and the fourth sub-region SAA4 can be electrically connected to the Y-touch wiring Y-TL located in the non-active region NA at the boundary between the active region AA and the non-active region NA.

[0247] For example, the second Y-touch electrode line Y-TEL-2 can be electrically connected to the second Y-touch wiring Y-TL-2 on the boundary between the active region AA and the non-active region NA. The second Y-touch wiring Y-TL-2 can be made of at least one of the first touch sensor metal TSM1 or the second touch sensor metal TSM2.

[0248] The Y-touch electrode lines Y-TELs located on the first sub-region SAA1 and the third sub-region SAA3 can be electrically connected to the Y-touch wiring Y-TL on the active region AA.

[0249] For example, the first Y-touch electrode line Y-TEL-1 can be electrically connected to the first Y-touch wiring Y-TL-1 on the active area AA.

[0250] The first Y-touch wiring Y-TL-1 can be disposed on the non-active area NA and the second sub-area SAA2. The first Y-touch wiring Y-TL-1 can pass through the second sub-area SAA2 and can be electrically connected to the first Y-touch electrode line Y-TEL-1 disposed on the first sub-area SAA1.

[0251] For example, the first Y-touch wiring Y-TL-1 can be made of the first touch sensor metal TSM1. In some cases, the second touch sensor metal TSM2 can be disposed in the area overlapping with the first Y-touch wiring Y-TL-1, and can be electrically connected to the first Y-touch wiring Y-TL-1 through the contact hole CH, thereby reducing the resistance of the first Y-touch wiring Y-TL-1.

[0252] Since the first Y-touch wiring Y-TL-1 is disposed on the second sub-region SAA2, the second Y-touch electrode line Y-TEL-2 disposed on the second sub-region SAA2 can be divided and disposed on both sides of the first Y-touch wiring Y-TL-1.

[0253] The two parts of the second Y-touch electrode line Y-TEL-2 can be electrically connected to each other by connecting to the second Y-touch wiring Y-TL-2 on the boundary between the active area AA and the non-active area NA.

[0254] Furthermore, the two parts of the second Y-touch electrode line Y-TEL-2 can be electrically connected to each other through the second Y-touch electrode connection pattern Y-CL-2 disposed on the active region AA.

[0255] For example, the second Y-touch electrode connection pattern Y-CL-2 can be made of the second touch sensor metal TSM2.

[0256] The two portions of the second Y-touch electrode line Y-TEL-2 can be electrically connected to each other through at least one second Y-touch electrode connection pattern Y-CL-2. For example, the second Y-touch electrode connection pattern Y-CL-2 can be disposed in a region adjacent to the upper boundary of the sensing unit SU and a region adjacent to the lower boundary of the sensing unit SU, and can be electrically connected to the second Y-touch electrode line Y-TEL-2.

[0257] Since the two separate parts of the second Y-touch electrode line Y-TEL-2 are connected at multiple points by the second Y-touch electrode connection pattern Y-CL-2, the structure of the second Y-touch electrode line Y-TEL-2 being divided can prevent the load from increasing.

[0258] The first Y-touch wiring Y-TL-1 can pass through the second sub-region SAA2 and is electrically connected to the first Y-touch electrode line Y-TEL-1 on the first sub-region SAA1.

[0259] Since the first Y-touch wiring Y-TL-1 passes through the second sub-region SAA2 and extends to the first sub-region SAA1, a portion of the first Y-touch wiring Y-TL-1 can be set on the first boundary BL1.

[0260] The point where the first Y-touch wiring Y-TL-1 connects to the first Y-touch electrode line Y-TEL-1 can be located inside the first sub-region SAA1. The point where the first Y-touch wiring Y-TL-1 connects to the first Y-touch electrode line Y-TEL-1 can be not located on the boundary between the first sub-region SAA1 and the second sub-region SAA2.

[0261] Since the first Y-touch wiring Y-TL-1 passes through the second sub-region SAA2 and is electrically connected to the first Y-touch electrode line Y-TEL-1 disposed on the first sub-region SAA1, in a structure in which the touch electrode line TEL is divided and disposed on multiple sub-regions SAA, the touch wiring TL can be disposed without increasing the non-active region NA.

[0262] Since the area of ​​the second Y-touch electrode line Y-TEL-2 is reduced as the first Y-touch wiring Y-TL-1 is set on the second sub-region SAA2, the area of ​​the first Y-touch electrode line Y-TEL-1 located in the region corresponding to the second Y-touch electrode line Y-TEL-2 can be equal to or similar to the area of ​​the second Y-touch electrode line Y-TEL-2.

[0263] For example, similar to the second Y-touch electrode line Y-TEL-2, the first Y-touch electrode line Y-TEL-1 can be configured to be divided into two parts.

[0264] The two parts of the first Y-touch electrode line Y-TEL-1 can be electrically connected to each other through the first Y-touch electrode connection pattern Y-CL-1. The first Y-touch electrode connection pattern Y-CL-1 can prevent the increase in load caused by the segmented structure of the first Y-touch electrode line Y-TEL-1.

[0265] At least one first dummy electrode DME1 can be provided between the two parts of the first Y-touch electrode line Y-TEL-1.

[0266] The first dummy electrode DME1 can be configured to be electrically separate from the first Y-touch electrode line Y-TEL-1 and the first Y-touch wiring line Y-TL-1.

[0267] The boundary between the first dummy electrode DME1 and the first Y-touch wiring Y-TL-1 may be different from the boundary between the first sub-region SAA1 and the second sub-region SAA2. The boundary between the first dummy electrode DME1 and the first Y-touch wiring Y-TL-1 may be located inside the first sub-region SAA1.

[0268] The first dummy electrode DME1 can be disposed on the first sub-region SAA1 to correspond to a portion of the first Y-touch wiring Y-TL-1 disposed on the second sub-region SAA2. The width of the first dummy electrode DME1 can be equal to or similar to the width of the first Y-touch wiring Y-TL-1.

[0269] The area of ​​the first Y-touch electrode line Y-TEL-1 disposed on the first sub-region SAA1 can be reduced to correspond to the reduction in the area of ​​the second Y-touch electrode line Y-TEL-2 due to the arrangement of the first Y-touch wiring Y-TL-1 on the second sub-region SAA2. The electrode located in the area reserved by reducing the area of ​​the first Y-touch electrode line Y-TEL-1 can become the first dummy electrode DME1.

[0270] While maintaining the touch sensitivity of the touch electrode line TEL set on the first sub-region SAA1 as equal to or similar to the touch sensitivity of the touch electrode line TEL set on the second sub-region SAA2, it is possible to realize some of the touch wiring TLs set on the active region AA.

[0271] Since the Y-touch wiring Y-TL is set in the second direction, a portion of the Y-touch wiring Y-TL can be located on the first boundary BL1.

[0272] Since the second boundary BL2, which serves as the boundary of the second direction, divides the first sub-region SAA1 and the third sub-region SAA3, and the second sub-region SAA2 and the fourth sub-region SAA4, the Y-touch wiring Y-TL set in the second direction does not need to be set on the second boundary BL2.

[0273] The first Y-touch wiring Y-TL-1 can extend from the boundary between the active region AA and the non-active region NA to the non-active region NA, and can cross the second Y-touch wiring Y-TL-2. In the area where the first Y-touch wiring Y-TL-1 and the second Y-touch wiring Y-TL-2 intersect each other, they can be set on different layers.

[0274] As described above, according to embodiments of this disclosure, a structure in which touch electrode lines TEL are divided and disposed on multiple sub-regions SAA can provide a touch sensor structure that reduces the load on the touch electrode lines TEL. Furthermore, since a portion of the touch wiring TL is disposed on the active region AA, the arrangement of the touch wiring TL enables a structure that improves touch sensing performance without the need for a non-active region NA.

[0275] The touch electrode TE constituting the touch electrode line TEL, as in the examples mentioned above, can be made of a transparent conductive material or an opaque metallic material. When the touch electrode TE is an opaque metallic material, it can have a shape with an opening corresponding to the light-emitting area of ​​the sub-pixel SP, so as not to degrade the image display performance of the display panel 110. The shape of the touch electrode TE, including the opening portion, can vary depending on the type of sub-pixel SP.

[0276] Figure 13 This is a diagram illustrating an example of the structure of the electrodes constituting the touch sensor structure of a touch display device 100 according to an embodiment of the present disclosure. Figure 13 The composition is illustrated by example. Figure 12 The structure of the electrodes of the touch sensor structure in the area indicated by 1201 shown.

[0277] Figure 13 An example is shown of the specific structure of the electrodes constituting the main body portion TE-a and the wing portion TE-b of the aforementioned touch electrode TE. Figure 13 The electrode shown is cut in a certain direction to form the main body portion TE-a and the wing portion TE-b of the touch electrode TE. Furthermore, the structure of the touch wiring TL electrically connected to the touch electrode TE can be similar to... Figure 13 The electrodes shown have the same structure.

[0278] Reference Figure 13 It exemplifies a structure in which a display signal line DSL is provided on the display panel 110 to provide signals for display driving and a touch electrode TE is provided.

[0279] The display signal line DSL may include multiple first display signal lines DSL1 arranged in a first direction and multiple second display signal lines DSL2 arranged in a second direction.

[0280] For example, the first display signal line DSL1 can be a gating line GL or a light emission control line EML. For example, the second display signal line DSL2 can be a data line DL or a line that provides at least one of a first drive voltage VDD, a reference voltage Vref, or a second drive voltage VSS.

[0281] For example, the touch electrode TE may include a first portion TE_f set in a first direction, a second portion TE_s set in a second direction, and a third portion TE_t set in a third direction different from the first and second directions.

[0282] The electrode constituting the touch electrode TE may be cut in a first direction, such as the portion indicated by 1301, or may be cut in a second direction, such as the portion indicated by 1302, to constitute an X-touch electrode TE or a Y-touch electrode Y-TE.

[0283] The electrode, which includes the first part TE_f, the second part TE_s, and the third part TE_t, can be cut in the first direction or the second direction, and can form the main body part TE-a or the wing part TE-b of the touch electrode TE mentioned above.

[0284] Similar to the touch electrode TE, the touch wiring TL may include at least some of the first part TE_f, the second part TE_s, or the third part TE_t, and may be cut in a first direction or a second direction.

[0285] Since the touch electrode TE is formed comprising a first portion TE_f, a second portion TE_s, and a third portion TE_t arranged in different directions, the touch electrode TE can include multiple opening portions. The shape of the opening portions of the touch electrode TE can be varied and can be determined based on the shape of the light-emitting area of ​​the sub-pixel SP disposed on the display panel 110.

[0286] Figure 14 This is a diagram illustrating an example of the arrangement relationship between the electrodes constituting the touch sensor structure and the structure included in the sub-pixel SP in a touch display device 100 according to an embodiment of the present disclosure. Figure 14 An example is given in Figure 12 The structure of the electrodes constituting the touch sensor structure is shown in the area indicated by 1202. Figure 15 This is an example Figure 14 A diagram showing an example of the cross-sectional structure of the AA′ section.

[0287] Reference Figure 14 and Figure 15 The light-emitting area of ​​the light-emitting element ED set on the sub-pixel SP can be located in the area that overlaps with the opening of the touch electrode TE.

[0288] The light-emitting area of ​​the light-emitting element ED can refer to the area where the light-emitting layer EL and the second electrode E2 overlap with the first electrode E1 of the light-emitting element ED. Alternatively, the light-emitting area of ​​the light-emitting element ED can also refer to the area within the region where the first electrode E1 of the light-emitting element ED is located, where the embankment BNK is not provided.

[0289] Figure 14An example is shown of the shape in which the light-emitting areas of the red sub-pixel SP_r, green sub-pixel SP_g, and blue sub-pixel SP_b are set. The shape and size of the sub-pixel SP that constitute a pixel may vary depending on the display panel 110.

[0290] The first part TE_f, the second part TE_s, and the third part TE_t of the touch electrode TE can be set to avoid the light-emitting area of ​​the sub-pixel SP.

[0291] The touch electrode TE can be positioned between the light-emitting areas of adjacent sub-pixels SP, and can prevent or minimize the impact of the touch electrode TE on image display based on the viewing angle.

[0292] Since the touch electrode TE is configured to avoid the light-emitting area of ​​the sub-pixel SP, the touch electrode TE can be configured to overlap with a certain structure located on the sub-pixel SP.

[0293] For example, the first portion TE_f of the touch electrode TE in the first direction can be configured to overlap with at least a portion of the contact hole CH, which is used for the electrical connection between the first electrode E1 of the light-emitting element ED and the thin-film transistor TFT on the sub-pixel SP.

[0294] Reference Figure 14 and Figure 15 In Example 1, multiple buffer layers MB can be formed on a substrate SUB. The substrate SUB may include, for example, a first polyimide layer PI1, an interlayer polyimide layer IPD, and a second polyimide layer PI2. The multiple buffer layers MB may be a structure in which multiple insulating layers are laminated.

[0295] A light-shielding metal layer (BSM) can be set on the multi-buffered layer (MB). The light-shielding metal layer (BSM) can form part of the display signal line (DSL) or it can form part of the storage capacitor (Cstg) set on the sub-pixel (SP).

[0296] An active buffer layer AB can be set on the light-shielding metal layer BSM.

[0297] The active layer ACT can be disposed on the active buffer layer AB. The active layer ACT can be made of semiconductor material.

[0298] The active layer ACT can form the channel of a thin-film transistor (TFT). Furthermore, the active layer ACT can be used to form part of a display signal line DSL or a storage capacitor Cstg by conducting electricity.

[0299] The gate insulating layer GI can be disposed on the active layer ACT.

[0300] The gate metal layer (GAT) can be disposed on the gate insulating layer (GI). The gate metal layer (GAT) can form the gate electrode of a thin-film transistor (TFT) or a display signal line (DSL), etc.

[0301] The first interlayer insulating layer ILD1 can be disposed on the gate metal layer GAT.

[0302] The display auxiliary electrode layer TM can be disposed on the first interlayer insulating layer ILD1. The display auxiliary electrode layer TM can be used in various ways to form part of the display signal line DSL or the storage capacitor Cstg, etc.

[0303] The second interlayer insulating layer ILD2 can be disposed on the display auxiliary electrode layer TM.

[0304] The source / drain metal layer SD can be disposed on the second interlayer insulating layer ILD2. The source / drain metal layer SD can constitute the source and drain electrodes of a thin-film transistor (TFT), or it can constitute a display signal line DSL, etc.

[0305] The planarization layer PLN can be set on the source / drain metal layer SD.

[0306] The first electrode E1 of the light-emitting element ED can be disposed on the planarization layer PLN. The first electrode E1 of the light-emitting element ED can be electrically connected to a thin-film transistor TFT located below the planarization layer PLN through a contact hole CH formed in the planarization layer PLN. The thin-film transistor TFT electrically connected to the first electrode E1 of the light-emitting element ED can be, for example, a driving transistor DRT, or a transistor that controls the timing of light emission of the light-emitting element ED, such as... Figure 2 Examples.

[0307] The embankment BNK can be disposed on the planarization layer PLN and the first electrode E1 of the light-emitting element ED. The embankment BNK can be configured to cover the edge portion of the first electrode E1 of the light-emitting element ED.

[0308] The light-emitting layer EL and the second electrode E2 of the light-emitting element ED can be disposed on the portion of the first electrode E1 exposed by the embankment BNK and on the embankment BNK. The portion of the first electrode E1 exposed by the embankment BNK can correspond to the light-emitting area.

[0309] The encapsulation layer ENCAP can be disposed on the second electrode E2 of the light-emitting element ED. The encapsulation layer ENCAP may include multiple layers. The encapsulation layer ENCAP may include at least one inorganic layer and at least one organic layer.

[0310] For example, the encapsulation layer ENCAP may include a first inorganic encapsulation layer PAS1, an organic encapsulation layer PCL, and a second inorganic encapsulation layer PAS2.

[0311] The inorganic encapsulation layers PAS1 and PAS2 can be made of inorganic insulating materials such as silicon nitride (SiNx), silicon oxide (SiOx), silicon oxynitride (SiON), or aluminum oxide (Al2O3), which can be deposited at low temperatures. The organic encapsulation layer PCL can be made of organic insulating materials such as acrylic resin, epoxy resin, polyimide, polyethylene, or silicon-oxygen-carbon (SiOC).

[0312] The ENCAP encapsulation layer can seal the light-emitting element (ED) and protect it from external moisture and air.

[0313] The touch sensor structure for touch sensing can be implemented on the encapsulation layer ENCAP.

[0314] For example, a touch buffer layer (TBUF) can be placed on the encapsulation layer (ENCAP). The touch buffer layer (TBUF) can be an inorganic layer. In some cases, a touch buffer layer (TBUF) may not be provided, but it can be provided to facilitate the placement of the touch sensor metal TSM on the encapsulation layer (ENCAP).

[0315] The touch insulation layer TILD can be set on the touch buffer layer TBUF.

[0316] Although Figure 15 Although not shown, the second touch sensor metal TSM2, which constitutes the touch electrode connection pattern CL, may be disposed between the touch buffer layer TBUF and the touch insulating layer TILD.

[0317] The touch insulating layer (TILD) can be an inorganic layer. Alternatively, the touch insulating layer (TILD) can be an organic layer.

[0318] When the touch insulating layer TILD is an organic layer, the thickness of the touch insulating layer TILD can be greater than the thickness of the touch buffer layer TBUF.

[0319] Furthermore, in cases where the touch insulating layer TILD is an organic layer, such as Figure 15 In Example 2, the touch insulating buffer layer TIBUF can be further disposed between the touch insulating layer TILD and the touch buffer layer TBUF. As described above, two or more buffer layers can be disposed between the encapsulation layer ENCAP and the touch insulating layer TILD.

[0320] A touch insulating buffer layer (TIBUF) can be disposed between the touch insulating layer (TILD) and the second touch sensor metal (TSM2). The touch insulating buffer layer (TIBUF) can be an inorganic layer. The touch insulating buffer layer (TIBUF) can be made of the same material as the touch buffer layer (TBUF).

[0321] At least a portion of the touch insulating layer TILD can be configured to contact the top surface of the touch insulating buffer layer TIBUF.

[0322] Since the touch insulating buffer layer TIBUF, made of an inorganic layer, is disposed between the touch insulating layer TILD and the second touch sensor metal TSM2, the adhesion of the touch insulating layer TILD, which is an organic layer, can be made easier.

[0323] The thickness of the touch insulating buffer layer TIBUF can be less than the thickness of the touch insulating layer TILD, and can be similar to the thickness of the touch buffer layer TBUF.

[0324] The touch electrode TE can be disposed on the touch insulating layer TILD. The first touch sensor metal TSM1 can be disposed on the touch insulating layer TILD and can constitute the touch electrode TE. In addition, the first touch sensor metal TSM1 can be disposed on the touch insulating layer TILD and can constitute the touch wiring TL.

[0325] Figure 15 Exemplary examples Figure 14 The diagram shows the cross-sectional structure of the portion where the first part TE_f of the touch electrode TE is disposed. The first part TE_f of the touch electrode TE can be disposed on the touch insulating layer TILD.

[0326] The first portion TE_f of the touch electrode TE can be configured to avoid the light-emitting area of ​​the light-emitting element ED. The first portion TE_f of the touch electrode TE can be disposed in an area overlapping with at least a portion of the contact hole CH, which is used for electrical connection between the first electrode E1 of the light-emitting element ED and the thin-film transistor TFT.

[0327] The first part TE_f of the touch electrode TE can be located between adjacent display signal lines DSL located in the first direction, or it can be located to overlap with a part of the display signal line DSL.

[0328] Since the touch electrode TE is located in the area overlapping with the contact hole CH and is configured to avoid the light-emitting area of ​​the light-emitting element ED, the touch sensor structure can be implemented without reducing the image display function of the display panel 110.

[0329] The touch protection layer TPAS can be applied to the touch electrode TE, which is made of the first touch sensor metal TSM1, and can protect the touch electrode TE.

[0330] As described above, since each part of the electrode constituting the touch electrode TE or touch wiring TL is located in a region that does not overlap with the light-emitting area of ​​the light-emitting element ED located on the sub-pixel SP, and is located in a position that minimizes interference with the viewing angle of the light-emitting area, it is possible to realize the touch sensor structure while preventing or minimizing the degradation of the image display performance of the display panel 110.

[0331] The following will describe Figure 5 The illustrated touch sensor structure is a specific example implemented by a touch electrode TE having the electrode structure described above and touch wiring TL. Furthermore, as described above, the touch electrode TE can have various shapes other than the electrode structure described above, and the embodiments of this disclosure can be applied to various electrode structures.

[0332] Figures 16 to 18 This is a diagram illustrating a specific example of a touch sensor structure of a touch display device 100 according to an embodiment of the present disclosure being implemented on an active area AA of a display panel 110.

[0333] Figure 16 An example of the structure of a touch electrode TE is shown, which is disposed on a segmented sub-region SAA of an active region AA. Figure 17 An example of the structure of the touch wiring TL and dummy electrode DME set on the active region AA is shown. Figure 18 An example is shown of the boundary between the touch wiring TL and the dummy electrode DME on the active region AA.

[0334] Reference Figure 16 The active area AA of the display panel 110 can be divided into multiple sub-areas SAA by a first boundary BL1 and a second boundary BL2. Touch electrode lines TEL disposed on each of the multiple sub-areas SAA can be arranged separately from each other. For ease of explanation, Figure 16 The schematic diagram of the overall structure of the example display panel 110 illustrates the portion made of the first touch sensor metal TSM1.

[0335] Some of the touch electrode lines TELs located on multiple sub-regions SAA can be electrically connected to the touch wiring TL located on the non-active region NA at the boundary between the active region AA and the non-active region NA.

[0336] Some of the other touch electrode lines TELs located on multiple sub-regions SAA can be electrically connected to touch wiring TLs located on the active region AA, which are configured to pass through the active region AA from the non-active region NA.

[0337] The touch electrode TE constituting the touch electrode line TEL may include at least one main body portion TE-a and multiple wing portions TE-b.

[0338] Touch electrode lines TEL and touch wiring TL can be implemented by cutting electrodes comprising a first part TE_f, a second part TE_s, and a third part TE_t in a certain direction.

[0339] For example, electrodes can be cut at the boundary between the X-touch electrode line (X-TEL) and the Y-touch electrode line (Y-TEL). Electrodes can also be cut at the boundaries of the touch wiring line (TL), the dummy electrode line (DME), and the touch electrode line (TEL). Furthermore, electrodes can be cut at the boundary of the sub-region (SAA).

[0340] Reference Figure 16 The electrode can be cut along the first direction on the first boundary BL1. The electrode can be cut along the second direction on the second boundary BL2.

[0341] By cutting electrodes on the first boundary BL1 and the second boundary BL2, the touch electrode line TEL disposed on each of the first sub-region SAA1, the second sub-region SAA2, the third sub-region SAA3 and the fourth sub-region SAA4 can be divided.

[0342] The X-touch electrode line (X-TEL) and Y-touch electrode line (Y-TEL) on each sub-region SAA can be achieved by cutting the electrodes in the first or second direction.

[0343] The spacing between touch electrodes TE on the boundary of sub-region SAA can be equal to or similar to the spacing between touch electrodes TE inside sub-region SAA. Since the spacing between the cut electrodes is substantially the same, there will be no difference in visibility depending on the area of ​​the display panel 110.

[0344] Following a similar approach to touch electrode lines (TEL), touch wiring (TL) and dummy electrodes (DME) can be implemented by cutting the electrodes.

[0345] Reference Figure 17 The portion indicated by 1701 illustrates an example of a region where a first dummy electrode DME1 is disposed on a first sub-region SAA1. The portion indicated by 1702 illustrates an example of a region where a first Y-touch wiring Y-TL-1 is disposed on a second sub-region SAA2.

[0346] The first Y-touch wiring Y-TL-1 can be set by cutting the electrodes set on the second sub-region SAA2.

[0347] The first Y-touch wiring Y-TL-1 can be located between the two parts of the second Y-touch electrode line Y-TEL-2 on the second sub-region SAA2.

[0348] At least one first dummy electrode DME1 can be set by cutting the electrode set on the first sub-region SAA1. The at least one first dummy electrode DME1 can be located in the region of the first sub-region SAA1 corresponding to the region where the first Y-touch wiring Y-TL-1 is set on the second sub-region SAA2.

[0349] The first dummy electrode DME1 can be located between the first Y-touch electrode lines Y-TEL-1 on the first sub-region SAA1. Multiple first dummy electrodes DME1 can be separated from each other and can be configured as follows: Figure 17 The example shown ensures that no defects occur even if a portion of the first dummy electrode DME1 is short-circuited.

[0350] The first dummy electrode DME1, electrically separated from the first Y-touch electrode line Y-TEL-1, can be located between the first Y-touch electrode lines Y-TEL-1 in the first sub-region SAA1. The first Y-touch wiring Y-TL-1, electrically separated from the second Y-touch electrode line Y-TEL-2, can be located between the second Y-touch electrode lines Y-TEL-2 in the second sub-region SAA2.

[0351] The first dummy electrode DME1 and the first Y-touch wiring Y-TL-1 can be configured to correspond to each other. The width of the area where the first dummy electrode DME1 is disposed can be equal to or similar to the width of the area where the first Y-touch wiring Y-TL-1 is disposed. That is, the lower touch sensor portion can include the area through which the first Y-touch wiring Y-TL-1 of the upper touch sensor portion passes, and in the upper touch sensor portion, the first dummy electrode DME1 can be disposed on the area corresponding to the first Y-touch wiring Y-TL-1 disposed on the lower touch sensor portion.

[0352] At least one second dummy electrode DME2 can be provided by cutting the electrode portion between the second Y-touch electrode line Y-TEL-2 and the first Y-touch wiring Y-TL-1 on the second sub-region SAA2.

[0353] The second dummy electrode DME2 can be configured to be electrically separate from the first Y-touch wiring Y-TL-1 and the second Y-touch electrode line Y-TEL-2.

[0354] The first dummy electrode DME1 can be located on the portion of the first sub-region SAA1 corresponding to the region on the second sub-region SAA2 where the second dummy electrode DME2 is located. Some of the first dummy electrodes DME1 can be configured to correspond to the second dummy electrode DME2.

[0355] The second dummy electrode DME2 can be configured to prevent or reduce visibility loss due to the arrangement of the touch electrode lines TEL. Alternatively, the second dummy electrode DME2 can be configured to prevent short circuits between the first Y-touch wiring Y-TL-1 and the second Y-touch electrode line Y-TEL-2.

[0356] In corresponding areas of the first sub-region SAA1 and the second sub-region SAA2, a first dummy electrode DME1 or a first Y-touch wiring Y-TL-1 and a second dummy electrode DME2 can be provided. The areas of the Y-touch electrode lines Y-TEL on each of the first sub-region SAA1 and the second sub-region SAA2 can be equal or similar. The spacing between the two portions of the first Y-touch electrode line Y-TEL-1, which is separately located on both sides of the first dummy electrode DME1 in the first sub-region SAA1, can be equal or similar to the spacing between the two portions of the second Y-touch electrode line Y-TEL-2, which is separately located on both sides of the first Y-touch wiring Y-TL-1 in the second sub-region SAA2.

[0357] The first dummy electrode DME1 and the second dummy electrode DME2 can be set by cutting the electrodes in a manner similar to that of a touch electrode line TEL or a touch wiring TL. The dummy electrode DME can be set by cutting the electrodes in a first direction or a second direction, similar to that of a touch electrode line TEL.

[0358] Alternatively, at least one of the first dummy electrode DME1 or the second dummy electrode DME2 may be configured to be cut in a direction different from the direction in which the touch electrode line TEL and the touch wiring TL are cut.

[0359] For example, as described above, touch electrode lines TEL and touch wiring TL can be formed by cutting electrodes in a first direction or a second direction. However, the first dummy electrode DME1 and the second dummy electrode DME2 can be formed by cutting electrodes in a direction other than the first and second directions. The two sides (ends) of each of the first dummy electrode DME1 and the second dummy electrode DME2 can be in a shape cut in a third direction different from the first and second directions.

[0360] For example, a dummy electrode DME can be configured by cutting an electrode diagonally at the boundary between the dummy electrode DME and the touch electrode line TEL or touch wiring TL. The two sides of the dummy electrode DME can be cut in a diagonal shape. When the boundary of the dummy electrode DME is cut in a diagonal shape, the area of ​​the end of the dummy electrode DME can be larger than the area of ​​the end of the touch electrode line TEL or the end of the touch wiring TL.

[0361] The boundary between touch electrode lines TEL and the boundary between touch electrode lines TEL and touch wiring TL can be the shape of cutting electrodes in a first direction or a second direction.

[0362] The boundary between the dummy electrode DME and the touch electrode line TEL, the boundary between the dummy electrode DME and the touch wiring TL, and the boundary between the dummy electrodes DME can be a shape cut in a third direction (e.g., a diagonal direction) different from the first and second directions.

[0363] The dummy electrode (DME) may have a shape in which the electrode is cut diagonally along the boundary of the dummy electrode (DME). The touch electrode line (TEL) or touch wiring line (TL) may include a protrusion that protrudes toward the dummy electrode (DME) and has a shape in which the electrode is cut diagonally along the boundary of the dummy electrode (DME) and the touch electrode line (TEL) or touch wiring line (TL).

[0364] Because the cutting direction of the boundary of the dummy electrode DME is different from the cutting direction of the boundary of the touch electrode line TEL or the touch wiring TL, the repair process is easier in the detection process of the touch sensor structure.

[0365] For example, if there is a short circuit between electrodes on the boundary of the electrodes cut along the first or second direction, since the corresponding area is the boundary between touch electrode lines TEL or the boundary between touch electrode line TEL and touch wiring TL, a repair process of cutting the short circuit is required.

[0366] In the case where a short circuit exists between electrodes at the boundary of the electrodes cut along the diagonal direction, since at least one of the short-circuited electrodes is a dummy electrode (DME), it will not affect the touch sensor structure even if the short circuit is not cut. Therefore, the inspection process can be terminated without a repair process. In this case, the dummy electrode (DME) can be configured to be connected to the touch electrode line (TEL) or touch wiring (TL) on the active area (AA).

[0367] As described above, by arranging dummy electrodes (DMEs), the area of ​​the touch electrode line (TEL) can be made uniform, and visibility can be improved. Furthermore, since the cutting direction at the boundary of the dummy electrodes (DMEs) is different from the cutting direction at the boundary of the touch electrode line (TEL), the efficiency of the inspection process can be improved.

[0368] While the examples above describe situations where dummy electrodes (DMEs) are only located in the area corresponding to or around the touch wiring TL, in some cases, dummy electrodes (DMEs) can be located inside the touch electrode lines (TELs) or in the boundary areas between touch electrode lines (TELs). In such cases, the dummy electrodes (DMEs) can be uniformly located in each area.

[0369] The boundary between the first dummy electrode DME1 disposed on the first sub-region SAA1 and the first Y-touch wiring Y-TL-1 electrically connected to the first Y-touch electrode line Y-TEL-1 of the first sub-region SAA1 can be cut in a similar manner.

[0370] Reference Figure 18 The portion indicated by 1801 represents the boundary between the first Y-touch wiring Y-TL-1 and the first dummy electrode DME1.

[0371] The boundary between the first Y-touch wiring Y-TL-1 and the first dummy electrode DME1 can be a shape in which the electrode is cut in a diagonal direction.

[0372] Alternatively, in some cases, the boundary between the first Y-touch wiring Y-TL-1 and the first dummy electrode DME1 may be a shape cut in the first direction. Since the plurality of first dummy electrodes DME1 are configured to be separated from each other, the boundary of only the first dummy electrode DME1 closest to the first Y-touch wiring Y-TL-1 may not be a shape cut in the diagonal direction.

[0373] Since the first Y-touch wiring Y-TL-1 is electrically connected to the first Y-touch electrode line Y-TEL-1 disposed on the first sub-region SAA1, the boundary between the first Y-touch wiring Y-TL-1 and the first dummy electrode DME1 can be different from the boundary between the first sub-region SAA1 and the second sub-region SAA2. For example, the boundary between the first Y-touch wiring Y-TL-1 and the first dummy electrode DME1 can be located inside the first sub-region SAA1.

[0374] The first Y-touch wiring Y-TL-1 can be directly connected to the first Y-touch electrode line Y-TEL-1 inside the first sub-region SAA1. Since both the first Y-touch wiring Y-TL-1 and the first Y-touch electrode line Y-TEL-1 are made of the first touch sensor metal TSM1, they can be directly connected to each other.

[0375] Alternatively, the first Y-touch wiring Y-TL-1 can be electrically connected to the first Y-touch electrode line Y-TEL-1 via a first Y-touch electrode connection pattern Y-CL-1 made of the second touch sensor metal TSM2.

[0376] The first Y-touch wiring Y-TL-1 and the first Y-touch electrode line Y-TEL-1 can be electrically connected to each other via the first Y-touch electrode connection pattern Y-CL-1 located on the upper side of the first boundary BL1. The two parts of the second Y-touch electrode line Y-TEL-2 disposed on the second sub-region SAA2 can be electrically connected to each other via the second Y-touch electrode connection pattern Y-CL-2 located on the lower side of the first boundary BL1.

[0377] When the first Y-touch wiring Y-TL-1 and the first Y-touch electrode line Y-TEL-1 are connected by the first Y-touch electrode connection pattern Y-CL-1, the first Y-touch wiring Y-TL-1 and the first Y-touch electrode line Y-TEL-1 can be separated from each other or connected to each other on the layer on which the first touch sensor metal TSM1 is disposed.

[0378] When the first Y-touch wiring Y-TL-1 and the first Y-touch electrode line Y-TEL-1 are set apart on the layer where the first touch sensor metal TSM1 is disposed, the boundary between the first Y-touch wiring Y-TL-1 and the first Y-touch electrode line Y-TEL-1 can be diagonal. Since even if the first Y-touch electrode line Y-TEL-1 and the first Y-touch wiring Y-TL-1 made of the first touch sensor metal TSM1 are short-circuited, there is no need for a repair process involving cutting. Therefore, for process convenience, in the process of cutting the dummy electrode DME, the boundary between the first Y-touch electrode line Y-TEL-1 and the first Y-touch wiring Y-TL-1 made of the first touch sensor metal TSM1 can be cut diagonally.

[0379] As described above, the first Y-touch wiring Y-TL-1 and the first Y-touch electrode line Y-TEL-1 can be electrically connected to each other in various shapes on the first sub-region SAA1.

[0380] Figure 19 This is a diagram illustrating a specific example of a touch sensor structure of a touch display device 100 according to an embodiment of the present disclosure being implemented on the peripheral region of the boundary between the active region AA and the non-active region NA of the display panel 110. Figure 19 An example is illustrated by setting the second touch sensor metal TSM2 in place. Figure 12 The specific structure in the area indicated by 1203.

[0381] Reference Figure 19 This illustrates a structural example of a second touch sensor metal TSM2 disposed on a region including a sensing unit SU on one side boundary of an active region AA.

[0382] The X-touch electrode connection pattern X-CL, used for connecting the X-touch electrode X-TE, can be set on the active area AA. The X-touch electrode connection pattern X-CL can be connected to the X-touch electrode contact pad X-CP located outside the active area AA. The X-touch electrode contact pad X-CP can be connected to the X-touch wiring X-TL.

[0383] At least one Y-touch electrode connection pattern Y-CL made of the second touch sensor metal TSM2 can be disposed in the region adjacent to the upper and lower boundaries of the sensing unit SU.

[0384] The Y-touch electrode connection pattern Y-CL can electrically connect the two parts of the Y-touch electrode line Y-TEL, which is separated by the Y-touch wiring Y-TL or the first dummy electrode DME1.

[0385] Two or more Y-touch electrode connection patterns Y-CL can be disposed on a sensing unit SU, and the Y-touch electrode connection patterns Y-CL can be disposed in various positions. Since the Y-touch electrode connection patterns Y-CL connect the Y-touch electrodes Y-TE that are separate on the upper and lower sides of each sensing unit SU, the Y-touch electrodes Y-TE can have a state similar to that of a non-separated structure.

[0386] Since the Y-touch electrode connection pattern Y-CL is located on the upper and lower boundaries of the sensing unit SU, the points where the X-touch electrode contact pad X-CP connected to the X-touch electrode line X-TEL is divided can be located between adjacent Y-touch electrode connection patterns Y-CL.

[0387] For example, as indicated by 1901, the boundary between the X-touch electrode contact pad X-CP can be the same as the boundary of the sensing unit SU.

[0388] Since the Y-touch electrode connection pattern Y-CL is set on both sides of the boundary of the sensing unit SU, the boundary between the X-touch electrode contact pads X-CP can be located between adjacent Y-touch electrode connection patterns Y-CL.

[0389] The Y-auxiliary wiring pattern Y-TLP can be set on the layer on which the second touch sensor metal TSM2 is located, in areas other than those where the X-touch electrode connection pattern X-CL and the Y-touch electrode connection pattern Y-CL are set.

[0390] The Y-auxiliary wiring pattern Y-TLP can be configured to be separate from the X-touch electrode connection pattern X-CL and the Y-touch electrode connection pattern Y-CL. The Y-auxiliary wiring pattern Y-TLP can be electrically connected to the Y-touch wiring Y-TL that overlaps with the Y-auxiliary wiring pattern Y-TLP, and can reduce the resistance of the Y-touch wiring Y-TL disposed on the active area AA.

[0391] The second touch sensor metal TSM2, which is disposed in the area overlapping with the first dummy electrode DME1, can be configured to have a similar shape to the first dummy electrode DME1 and can form a dummy pattern DMP.

[0392] The dummy pattern DMP can be set on an area of ​​the layer on which the second touch sensor metal TSM2 is located, excluding the areas where the X-touch electrode connection pattern X-CL, Y-touch electrode connection pattern Y-CL, and Y-auxiliary wiring pattern Y-TLP are located. Since the dummy pattern DMP is set on the area overlapping with the touch electrode line TEL, it can prevent the visibility difference of the areas that overlap with the touch wiring TL and the auxiliary wiring pattern TLP.

[0393] Since only the X-touch wiring X-TL, which drives the X-touch electrode line X-TEL disposed on the corresponding sub-region SAA, is provided on the boundary regions on both sides of the active region AA, the X-touch wiring X-TL can be easily arranged. The X-touch wiring X-TL can be made of at least one of the first touch sensor metal TSM1 or the second touch sensor metal TSM2, and can be implemented in a shape that reduces line resistance.

[0394] Figure 20 This is a diagram illustrating a specific example of the touch sensor structure of a touch display device 100 according to an embodiment of the present disclosure being implemented between the active region AA and the dam section DM of the non-active region NA of the display panel 110.

[0395] Reference Figure 20 At least one dam DM can be disposed on the non-active area NA of the display panel 110. At least one dam DM can be disposed around the active area AA. At least one dam DM can be located on the outside of the encapsulation layer ENCAP. At least one dam DM can be part of the encapsulation layer ENCAP.

[0396] Multiple touch traces (TLs) can be located inside at least one dam section (DM) on a non-active area (NA). Multiple touch traces (TLs) can also be located between an active area (AA) and at least one dam section (DM) in an area other than the pad area (PA).

[0397] Since multiple touch wiring TLs are located inside at least one dam section DM, it is possible to arrange touch wiring TLs while minimizing the increase in non-active area NA.

[0398] At least one shield line SHL can be configured to surround at least a portion of multiple touch wiring TLs. The shield line SHL can be located between the outermost touch wiring TL and the dam DM among the multiple touch wiring TLs.

[0399] The shielding wire SHL can be made of the same material as the touch wiring TL. For example, the shielding wire SHL can be made of at least one of the first touch sensor metal TSM1 or the second touch sensor metal TSM2.

[0400] The shielded wire SHL can be grounded. Alternatively, the shielded wire SHL can receive signals different from those provided via the touch wiring TL.

[0401] Because the shielding line SHL is set to surround the outside of the touch wiring TL, the shielding line SHL can block external noise and prevent or reduce the impact of external noise on the signal of the touch wiring TL.

[0402] At least one protection line (GUL) can be placed between the touch wiring (TL) and the shielding line (SHL).

[0403] The protective line GUL can be made of the same material as the touch wiring TL. For example, the protective line GUL can be made of at least one of the first touch sensor metal TSM1 or the second touch sensor metal TSM2.

[0404] Because the guard line GUL is located between the touch trace TL and the shield trace SHL, it prevents the formation of parasitic capacitance between the touch trace TL and the shield trace SHL. Since the parasitic capacitance between the touch trace TL and the shield trace SHL is prevented, the influence of signal fluctuations or voltage conditions on the shield trace SHL on the touch trace TL is also prevented.

[0405] A signal can be provided to the guard line GUL corresponding to the signal of the touch wire TL positioned closest to the guard line GUL among multiple touch wires TL. A signal can also be provided to the guard line GUL corresponding to the signal of the outermost touch wire TL among multiple touch wires TL.

[0406] The signal corresponding to the signal applied to the touch wiring TL can be a signal that is the same as at least one of the frequency, amplitude or phase of the signal applied to the touch wiring TL.

[0407] For example, the same signal applied to the touch wiring TL positioned closest to the guard wire GUL can be supplied to the guard wire GUL at the same timing. No parasitic capacitance can be formed between the touch wiring TL positioned closest to the guard wire GUL and the guard wire GUL. Indirect noise caused by the shield wire SHL can be blocked by the guard wire GUL.

[0408] As described above, the direct impact of external noise on the touch wiring trace (TL) can be blocked by the shielding line (SHL). Furthermore, the indirect noise from the shielding line (SHL) on the touch wiring trace (TL) can be blocked by the guard line (GUL). The shielding line (SHL) and guard line (GUL) can prevent or reduce noise in the signal detected by the touch wiring trace (TL), and can also prevent or reduce signal differences depending on the location of the touch wiring trace (TL).

[0409] At least one of the shielded wire SHL or the protective wire GUL can be configured to be split on the non-active region NA.

[0410] For example, the shielding line SHL and the protective line GUL (such as the portion indicated by 2001) can be configured to be separated on the extension of the second boundary BL2.

[0411] The touch electrode lines TEL located on the first sub-region SAA1 and the touch electrode lines TEL located on the third sub-region SAA3 can be set separately from each other and can be driven independently. The driving timing of the touch wiring TL that provides signals to the touch electrode lines TEL located on each of the first sub-region SAA1 and the third sub-region SAA3 can be slightly different.

[0412] The guard line GUL, which is provided with a signal corresponding to the signal applied to the touch wiring TL, can be configured to be segmented in relation to the sub-region SAA driven by the corresponding touch wiring TL.

[0413] For example, the protective line GUL located on both sides of the first sub-region SAA1 and the second sub-region SAA2 of the display panel 110 is closest to the touch wiring TL that drives the first sub-region SAA1, so it can be set to surround the outside of the first sub-region SAA1.

[0414] Since the protective line GUL located on both sides of the third sub-region SAA3 and the fourth sub-region SAA4 of the display panel 110 is closest to the touch wiring TL that drives the third sub-region SAA3, it can be set to surround the outside of the third sub-region SAA3.

[0415] Each guard line GUL located on both sides of the display panel 110 can be provided with a signal corresponding to the signal applied to the touch wire TL at the timing of applying the signal to the adjacent touch wire TL.

[0416] In a structure where the touch electrode line TEL, which is set on the active region AA, is divided into sub-regions SAA and driven, the noise of the touch wiring TL that drives each sub-region SAA can be blocked more accurately.

[0417] The example above illustrates the segmentation of the guard line GUL within a structure where the active region AA is divided into four sub-regions SAA. However, the guard line GUL can be configured to be segmented in various ways based on the segmentation structure of the sub-regions SAA.

[0418] In addition, the shielding wire SHL located outside the protection wire GUL can be configured to be segmented in a manner corresponding to the segmentation structure of the protection wire GUL.

[0419] For example, the shield line SHL can be configured to be split on the extension of the second boundary BL2. Alternatively, in some cases, the shield line SHL can be configured not to be split.

[0420] The grounded shield line SHL can be configured to surround the active area NA and block external noise. The guard line GUL, positioned adjacent to the touch wiring TL, can be configured to be segmented corresponding to the touch wiring TL or the sub-area SAA driven by the touch wiring TL and can block parasitic capacitance between lines and improve noise blocking effectiveness.

[0421] At least one of the touch wiring TL, guard wire GUL, or shield wire SHL located on the non-active area NA can be electrically connected to the pads located on the pad area PA and can be provided with signals.

[0422] Figure 21 This is a diagram illustrating a specific example of a touch sensor structure of a touch display device 100 according to an embodiment of the present disclosure being implemented on a non-active region NA of a display panel 110, including a pad region PA.

[0423] Reference Figure 21 The pad area PA, which has multiple pads, can be located on at least one side of the display panel 110.

[0424] Multiple display pads electrically connected to lines providing display driving signals and multiple touch pads TP electrically connected to lines providing touch sensing signals can be set on the pad area PA.

[0425] Multiple touch traces (TLs) can extend from the active area AA to the passive area NA and can cross the dam section DM. The touch traces (TLs) can cross the dam section DM and can be electrically connected to the touch pads (TPs) located on the pad area PA.

[0426] Multiple display signal lines DSL can be configured to extend from the active area AA to the passive area NA. Since the display signal lines DSL are located below the encapsulation layer ENCAP, they can be configured to pass under the dam section DM. The display signal lines DSL can be electrically connected to the display pads located on the pad area PA.

[0427] At least some of the display pads and touch pads TP can be configured using materials that constitute the touch electrodes TE and touch wiring TL. At least some of the display pads and touch pads TP can be configured using materials that constitute the display signal lines DSL.

[0428] Various pads can be constructed by electrically connecting pad portions made of the material constituting the touch electrode TE and the touch wiring TL, and pad portions made of the material constituting the display signal line DSL, on the pad area PA.

[0429] The planar structure of the display pads and touch pads (TP) can be varied according to the position of the pad area (PA).

[0430] For example, the pad region PA can be divided into sub-regions SAA corresponding to the active region AA. For example, the pad region PA can include four pad regions PA1, PA2, PA3, and PA4.

[0431] The gating pad GP, which provides signals or voltages related to the driving of the gating drive circuit 120, the data pad DP, which provides signals or voltages related to the driving of the data drive circuit 130, and the touch pad TP can be set on the first pad area PA1.

[0432] Touch pads TP located on the first pad area PA1 can be electrically connected to X-touch wiring X-TL that drives X-touch electrode lines X-TEL located on the first sub-area SAA1 and the second sub-area SAA2. In some cases, some of the touch pads TP located on the first pad area PA1 can be electrically connected to Y-touch wiring Y-TL that drives Y-touch electrode lines Y-TEL located on the first sub-area SAA1 and the second sub-area SAA2.

[0433] At least some of the touch pads TP located on the first pad area PA1 can be arranged symmetrically with the display pads. For example, the touch pads TP can be arranged symmetrically with the strobe pads GP. In this case, the touch wiring TL connected to the touch pads TP can be arranged symmetrically with the display signal line DSL connected to the strobe pads GP.

[0434] The data pads DP and touch pads TP that provide signals or voltages related to the drive of the data drive circuit 130 can be set on the second pad area PA2 and the third pad area PA3.

[0435] Touch pads TP, located on each of the second pad area PA2 and the third pad area PA3, can be symmetrically positioned. Data pads DP can be positioned among some of the symmetrically positioned touch pads TP and the others.

[0436] The touch pad TP located in the second pad area PA2 can be electrically connected to the Y-touch wiring Y-TL that drives the Y-touch electrode line Y-TEL located in the first sub-area SAA1 and the second sub-area SAA2. The touch pad TP located in the third pad area PA3 can be electrically connected to the Y-touch wiring Y-TL that drives the Y-touch electrode line Y-TEL located in the third sub-area SAA3 and the fourth sub-area SAA4.

[0437] In some cases, some of the touch pads TP located on the second pad area PA2 can be electrically connected to the Y-touch wiring Y-TL that drives the third sub-area SAA3 and the fourth sub-area SAA4. Some of the touch pads TP located on the third pad area PA3 can be electrically connected to the Y-touch wiring Y-TL that drives the first sub-area SAA1 and the second sub-area SAA2.

[0438] Furthermore, in some cases, some of the touch pads TP located on the second pad area PA2 can be electrically connected to the X-touch wiring X-TL that drives the X-touch electrode lines X-TEL located on the first sub-area SAA1 and the second sub-area SAA2. Similarly, some of the touch pads TP located on the third pad area PA3 can be electrically connected to the X-touch wiring X-TL that drives the X-touch electrode lines X-TEL located on the third sub-area SAA3 and the fourth sub-area SAA4.

[0439] Touch pads TP, data pads DP, and strobe pads GP can be set on the fourth pad area PA4. Pads set on the fourth pad area PA4 can be set symmetrically with pads set on the first pad area PA1.

[0440] The touch pads TP located on the fourth pad area PA4 can be electrically connected to the X-touch wiring X-TL that drives the X-touch electrode lines X-TEL located on the third sub-area SAA3 and the fourth sub-area SAA4. In some cases, some of the touch pads TP located on the fourth pad area PA4 can be electrically connected to the Y-touch wiring Y-TL that drives the Y-touch electrode lines Y-TEL located on the third sub-area SAA3 and the fourth sub-area SAA4.

[0441] With the gating drive circuit 120 located on both sides of the display panel 110, the gating pad GP can be located on the first pad area PA1 and the fourth pad area PA4.

[0442] Data pads DP and touch pads TP can be configured to be distributed in various areas inside the strobe pad GP, and can be configured to be electrically connected to touch wiring TL or data line DL located in the active area AA.

[0443] In addition to the examples above, the pads set on the pad area PA can be configured in various ways to effectively connect to the display signal line DSL and the touch wiring TL.

[0444] Figure 22 and Figure 23 This is a diagram illustrating an example of a connection structure between a touch pad TP disposed on a pad area PA of a display panel 110 of a touch display device 100 and a touch driving circuit 150, according to an embodiment of the present disclosure.

[0445] Reference Figure 22 The touch driving circuit 150 can be implemented as an integrated circuit with the data driving circuit 130, or it can be set as a separate circuit.

[0446] When the touch driving circuit 150 is configured as a separate circuit, it can be mounted on the film COF connected to the display panel 110. Alternatively, the touch driving circuit 150 can be mounted on a printed circuit board (PCB) connected to the film COF.

[0447] When the touch driver circuit 150 is disposed on a printed circuit board (PCB), since each sub-region SAA of the active region AA is driven by a separate circuit, at least some of the lines connecting the touch driver circuit 150 and the pads can cross.

[0448] For example, Figure 22 An exemplary embodiment is shown of a first film COF1 electrically connected to a pad disposed on a first pad region PA1 and a second film COF2 electrically connected to a pad disposed on a second pad region PA2.

[0449] The data driving circuit 130 can be mounted on the first film COF1 and the second film COF2. The first touch driving circuit 151 and the second touch driving circuit 152 can be disposed on the printed circuit board PCB.

[0450] For example, the first film COF1 may include a touch panel pad TPa electrically connected to a touch pad TP disposed on the first pad area PA1. The first film COF1 may include a data panel pad DPa electrically connected to a data pad DP disposed on the first pad area PA1.

[0451] The touch pad TP located on the first pad area PA1 can be electrically connected to the X-touch wiring X-TL that drives the X-touch electrode line X-TEL located on the first sub-area SAA1 and the second sub-area SAA2.

[0452] The touch panel pad TPa, included in the first film COF1, can be electrically connected to the touch panel pad TPb, also included in the first film COF1. The touch panel pad TPb can be electrically connected to a line provided on the printed circuit board (PCB). The data panel pad DPa, included in the first film COF1, can be electrically connected to the data panel pad DPb, also included in the first film COF1.

[0453] The second film COF2 may include a touch panel pad TPa electrically connected to a touch pad TP disposed on the second pad area PA2. The second film COF2 may also include a data panel pad DPa electrically connected to a data pad DP disposed on the second pad area PA2.

[0454] The touch pad TP located on the second pad area PA2 can be electrically connected to the Y-touch wiring Y-TL that drives the Y-touch electrode line Y-TEL located on the first sub-area SAA1 and the second sub-area SAA2.

[0455] The touch panel pad TPa, included in the second film COF2, can be electrically connected to the touch panel pad TPb, also included in the second film COF2. The touch panel pad TPb can be electrically connected to a line on the printed circuit board (PCB). The data panel pad DPa, included in the second film COF2, can be electrically connected to the data panel pad DPb, also included in the second film COF2.

[0456] Among the touch panel pads TPb included in the first film COF1, the touch panel pad TPb electrically connected to the first X-touch electrode line X-TEL-1 disposed on the first sub-region SAA1 can be electrically connected to the first touch driving circuit 151. Among the touch panel pads TPb included in the first film COF1, the touch panel pad TPb electrically connected to the second X-touch electrode line X-TEL-2 disposed on the second sub-region SAA2 can be electrically connected to the second touch driving circuit 152.

[0457] Among the touch panel pads TPb included in the second film COF2, the touch panel pad TPb electrically connected to the first Y-touch electrode line Y-TEL-1 disposed on the first sub-region SAA1 can be electrically connected to the first touch driving circuit 151. Among the touch panel pads TPb included in the second film COF2, the touch panel pad TPb electrically connected to the second Y-touch electrode line Y-TEL-2 disposed on the second sub-region SAA2 can be electrically connected to the second touch driving circuit 152.

[0458] On the printed circuit board (PCB), the line connected to the touch panel pad TPb of the first film COF1, which is electrically connected to the second X-touch electrode line X-TEL-2 of the second sub-region SAA2, can cross the line connected to the touch panel pad TPb of the second film COF2, which is electrically connected to the first Y-touch electrode line Y-TEL-1 of the first sub-region SAA1.

[0459] One of the lines connected to the touch panel pad TPb of the first film COF1 and the lines connected to the touch panel pad TPb of the second film COF2 can be disposed on different layers through vias such as the portion indicated by 2201, and can be connected to the touch drive circuit 150.

[0460] In cases where the line connecting the data panel pad DPb to the first film COF1 and the second film COF2 intersects with the line connecting the touch panel pad TPb, it can also be provided on different layers through vias such as the portion indicated by 2202.

[0461] Since the lines of the touch electrode lines TEL driven on the first sub-region SAA1 and the lines of the touch electrode lines TEL driven on the second sub-region SAA2 cross on the printed circuit board (PCB), the touch wiring TL of the touch electrode lines TEL driven on each sub-region SAA can be arranged in the display panel 110 without crossing each other.

[0462] In a structure where the touch electrode line (TEL) is divided for multiple sub-regions (SAA), the arrangement of the touch wiring line (TL) becomes easier.

[0463] Furthermore, in some cases, by arranging touch driving circuits 150 on both sides of the display panel 110, it is possible to set lines on the printed circuit board (PCB) and in the display panel 110 without the existence of a line crossing structure.

[0464] Reference Figure 23 The active region AA can be divided into the first sub-region SAA1, the second sub-region SAA2, the third sub-region SAA3, and the fourth sub-region SAA4.

[0465] The printed circuit board (PCB) and the film-on-frame (COF) with wires are connected to the upper and lower sides of the display panel 110. The touch driving circuit 150 can be located on the film-on-frame (COF) or on the printed circuit board (PCB).

[0466] For example, the first film COF1 and the third film COF3 can be connected to the upper side of the display panel 110. The first film COF1 and the third film COF3 can be connected to the first printed circuit board PCB1.

[0467] The touch wiring TL driving the first sub-region SAA1 can be connected to the touch driving circuit 150 through the first film COF1. The touch wiring TL driving the third sub-region SAA3 can be connected to the touch driving circuit 150 through the third film COF3.

[0468] The second film COF2 and the fourth film COF4 can be connected to the lower side of the display panel 110. The second film COF2 and the fourth film COF4 can be connected to the second printed circuit board PCB2.

[0469] The touch wiring TL driving the second sub-region SAA2 can be connected to the touch driving circuit 150 through the second film COF2. The touch wiring TL driving the fourth sub-region SAA4 can be connected to the touch driving circuit 150 through the fourth film COF4.

[0470] Since the touch wiring TL of the touch electrode lines TEL provided on the sub-regions SAA divided in the active region AA are distributed on the upper and lower sides of the display panel 110, the arrangement of the lines connecting the touch electrode lines TEL and the touch driving circuit 150 can be made easier.

[0471] The embodiments of the present disclosure described above will be briefly described below.

[0472] A touch display device 100 according to an embodiment of the present disclosure may include: a plurality of light-emitting elements ED located on an active region AA of a display panel 110; an encapsulation layer ENCAP located on the plurality of light-emitting elements ED; a plurality of X-touch electrode lines X-TEL located on the encapsulation layer ENCAP and including two or more X-touch electrodes X-TE electrically connected to each other along a first direction, the plurality of X-touch electrode lines X-TEL being respectively disposed on each of a plurality of sub-regions SAA included in the active region AA; a plurality of Y-touch electrode lines Y-TEL located on the encapsulation layer ENCAP and including two or more Y-touch electrodes Y-TE electrically connected to each other along a second direction intersecting the first direction, the plurality of Y-touch electrode lines Y-TEL being respectively disposed on each of a plurality of sub-regions SAA; and a plurality of touch wiring lines TL electrically connected to each of the plurality of X-touch electrode lines X-TEL and the plurality of Y-touch electrode lines Y-TEL.

[0473] Multiple sub-regions SAA may include a first sub-region SAA1 and a second sub-region SAA2, which are separated by a boundary in a first direction.

[0474] The driving period of the first X-touch electrode line X-TEL-1, which is closest to the boundary of the first direction among the multiple first X-touch electrode lines X-TEL-1 set on the first sub-region SAA1, is synchronized with the driving period of the second X-touch electrode line X-TEL-2, which is closest to the boundary of the first direction among the multiple second X-touch electrode lines X-TEL-2 set on the second sub-region SAA2.

[0475] Multiple first X-touch electrode lines X-TEL-1 can be driven sequentially in one direction, and multiple second X-touch electrode lines X-TEL-2 can be driven sequentially in the opposite direction.

[0476] For each of the multiple sub-regions SAA, multiple Y-touch electrode lines Y-TEL can be driven simultaneously on each of the multiple sub-regions SAA.

[0477] Multiple sub-regions SAA may include a third sub-region SAA3 that is separated from the first sub-region SAA1 by a boundary in a second direction.

[0478] Each of the multiple third X-touch electrode lines X-TEL-3 disposed on the third sub-region SAA3 can correspond to each of the multiple first X-touch electrode lines X-TEL-1. The driving period of each of the multiple third X-touch electrode lines X-TEL-3 can be synchronized with the driving period of the corresponding first X-touch electrode line X-TEL-1.

[0479] Multiple sub-regions SAA may include a fourth sub-region SAA4 that is separated from the third sub-region SAA3 by a boundary in a first direction.

[0480] The driving period of the fourth X-touch electrode line X-TEL-4, which is closest to the boundary in the first direction among the multiple fourth X-touch electrode lines X-TEL-4 set on the fourth sub-region SAA4, can be synchronized with the driving period of the third X-touch electrode line X-TEL-3, which is closest to the boundary in the first direction among the multiple third X-touch electrode lines X-TEL-3.

[0481] The driving periods of the first X-touch electrode line X-TEL-1, which is closest to the boundary of the first direction, the driving periods of the second X-touch electrode line X-TEL-2, which is closest to the boundary of the first direction, the driving periods of the third X-touch electrode line X-TEL-3, which is closest to the boundary of the first direction, and the driving periods of the fourth X-touch electrode line X-TEL-4, which is closest to the boundary of the first direction, are synchronized with each other.

[0482] Each of the multiple Y-Touch Electrode (Y-TEL) lines can be electrically connected to each of the multiple sensing units via multiple touch wiring (TL).

[0483] The structure of the sensing unit electrically connected to the Y-TEL line closest to the boundary of the second direction can be different from the structure of the sensing unit electrically connected to the rest of the Y-TEL lines.

[0484] A sensing unit electrically connected to the Y-touch electrode line Y-TEL closest to the boundary in the second direction can be electrically connected to one Y-touch electrode line Y-TEL. Each sensing unit electrically connected to the remaining Y-touch electrode lines Y-TEL can be electrically connected to two or more Y-touch electrode lines Y-TEL.

[0485] The touch drive circuit electrically connected to the multiple first Y-touch electrode lines Y-TEL-1 disposed on the first sub-region SAA1 can be different from the touch drive circuit electrically connected to the multiple third Y-touch electrode lines Y-TEL-3 disposed on the third sub-region SAA3.

[0486] The touch drive circuit electrically connected to the multiple second Y-touch electrode lines Y-TEL-2 disposed on the second sub-region SAA2 can be different from the touch drive circuit electrically connected to the multiple fourth Y-touch electrode lines Y-TEL-4 disposed on the fourth sub-region SAA4.

[0487] The touch display device 100 may also include a memory configured to store sensing data based on touch sensing signals acquired from multiple Y-TEL lines disposed on multiple sub-regions SAA.

[0488] At least some of the multiple X-touch electrode lines X-TELs disposed on the first sub-region SAA1 and the second sub-region SAA2 can be electrically connected to the touch pad TP disposed on the first pad region PA1 located outside the active region AA.

[0489] At least some of the multiple Y-touch electrode lines Y-TELs disposed on the first sub-region SAA1 and the second sub-region SAA2 can be electrically connected to the touch pad TP disposed on the second pad region PA2 located outside the active region AA.

[0490] At least some of the lines that electrically connect the touch pad TP on the first pad area PA1 and the touch driving circuit may cross at least some of the lines that electrically connect the touch pad TP on the second pad area PA2 and the touch driving circuit outside the display panel 110.

[0491] A touch display device 100 according to an embodiment of the present disclosure may include: a plurality of X-touch electrode lines X-TEL, each including two or more X-touch electrodes X-TE electrically connected to each other along a first direction, and respectively disposed on each of a plurality of sub-regions SAA included in an active region AA; and a plurality of Y-touch electrode lines Y-TEL, each including two or more Y-touch electrodes Y-TE electrically connected to each other along a second direction intersecting the first direction, and respectively disposed on each of a plurality of sub-regions SAA, wherein the plurality of sub-regions SAA includes a first sub-region SAA1 and a second sub-region SAA2 divided by a boundary of the first direction, wherein the first sub-region... The interval between the time period during which a touch drive signal TDS is applied to the first X-touch electrode line X-TEL-1 closest to the boundary of the first direction among the multiple first X-touch electrode lines X-TEL-1 on the second sub-region SAA1 and the time period during which a touch drive signal TDS is applied to the second X-touch electrode line X-TEL-2 closest to the boundary of the first direction among the multiple second X-touch electrode lines X-TEL-2 on the second sub-region SAA2 is smaller than the interval between the time period during which a touch drive signal TDS is applied to the first X-touch electrode line X-TEL-1 closest to the boundary of the first direction and the time period during which a touch drive signal TDS is applied to the remaining second X-touch electrode lines X-TEL-2.

[0492] Among the multiple first X-touch electrode lines X-TEL-1 and multiple second X-touch electrode lines X-TEL-2, touch drive signals TDS can be provided sequentially from the X-touch electrode line X-TEL positioned away from the boundary of the first direction to the X-touch electrode line X-TEL positioned close to the boundary of the first direction, or from the X-touch electrode line X-TEL positioned close to the boundary of the first direction to the X-touch electrode line X-TEL positioned away from the boundary of the first direction.

[0493] Touch sensing signals can be detected simultaneously from multiple Y-TEL lines set on multiple sub-regions SAA.

[0494] A touch display device 100 according to an embodiment of the present disclosure may include: a plurality of X-touch electrode lines X-TEL, each including two or more X-touch electrodes X-TE electrically connected to each other along a first direction, and respectively disposed on each of a plurality of sub-regions SAA included in an active region AA; and a plurality of Y-touch electrode lines Y-TEL, each including two or more Y-touch electrodes Y-TE electrically connected to each other along a second direction intersecting the first direction, and respectively disposed on each of a plurality of sub-regions SAA, wherein touch sensing signals are detected from the remaining Y-touch electrode lines Y-TEL, excluding the Y-touch electrode line Y-TEL closest to the boundary of the second direction, by a differential sensing method.

[0495] Touch sensing signals can be detected from the Y-TEL closest to the boundary of the second direction among multiple Y-TELs using a single-ended sensing method.

[0496] The touch drive circuits for the multiple Y-touch electrode lines Y-TELs that are set on each of the two sub-regions SAA located on both sides of the boundary in the second direction can be different from each other.

[0497] Two X-touch electrode lines (X-TELs) located on each of the two sub-regions (SAA) situated on either side of the boundary in the first direction and closest to the boundary in the first direction can be driven simultaneously.

[0498] The above description is presented to enable any person skilled in the art to make and use the technical concepts of this disclosure, and is provided in the context of a particular application and its requirements. Various modifications, additions, and substitutions to the described embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of this disclosure. The above description and drawings provide examples of the technical concepts of this disclosure for illustrative purposes only. That is, the disclosed embodiments are intended to illustrate the scope of the technical concepts of this disclosure. Therefore, the scope of this disclosure is not limited to the embodiments shown, but is to be accorded the widest scope consistent with the claims. The scope of protection of this disclosure should be interpreted based on the appended claims, and all technical concepts within the scope of their equivalents should be interpreted as being included within the scope of this disclosure.

[0499] Cross-references to related applications

[0500] This application claims priority to Korean Patent Application No. 10-2021-0138218, filed on October 18, 2021, and Korean Patent Application No. 10-2021-0189863, filed on December 28, 2021, which are incorporated herein by reference for all purposes as if fully set forth herein.

Claims

1. A touch display device, the touch display device comprising: Multiple light-emitting elements, wherein the multiple light-emitting elements are located on the active area of ​​the display panel; An encapsulation layer is located on the plurality of light-emitting elements; Multiple X-touch electrode lines are located on the encapsulation layer, including two or more X-touch electrodes electrically connected to each other along a first direction, and respectively disposed on each of the multiple sub-regions included in the active region; Multiple Y-touch electrode lines are located on the encapsulation layer, including two or more Y-touch electrodes electrically connected to each other along a second direction intersecting the first direction, and respectively disposed on each of the multiple sub-regions; as well as Multiple touch wirings are electrically connected to each of the multiple X-touch electrode lines and the multiple Y-touch electrode lines. The plurality of sub-regions includes a first sub-region and a second sub-region, which are divided by the boundary in the first direction. Specifically, the driving time of the first X-touch electrode line closest to the boundary in the first direction among the plurality of first X-touch electrode lines disposed on the first sub-region is synchronized with the driving time of the second X-touch electrode line closest to the boundary in the first direction among the plurality of second X-touch electrode lines disposed on the second sub-region, such that at least a portion of the driving time of the first X-touch electrode line overlaps with at least a portion of the driving time of the second X-touch electrode line. Specifically, each of the plurality of first X-touch electrode lines is driven sequentially in one direction, and while driving a corresponding one of the plurality of first X-touch electrode lines, each of the plurality of second X-touch electrode lines is driven sequentially in the opposite direction to the first direction.

2. The touch display device according to claim 1, wherein, The plurality of Y-touch electrode lines disposed on each of the plurality of sub-regions are simultaneously driven for each of the plurality of sub-regions.

3. The touch display device according to claim 1, wherein, The plurality of sub-regions includes a third sub-region separated from the first sub-region by a boundary in the second direction, and Each of the multiple third X-touch electrode lines disposed on the third sub-region corresponds to each of the multiple first X-touch electrode lines, and the driving period of each of the multiple third X-touch electrode lines is synchronized with the driving period of the corresponding first X-touch electrode line.

4. The touch display device according to claim 3, wherein, The plurality of sub-regions includes a fourth sub-region separated from the third sub-region by a boundary in the first direction, and Specifically, the driving period of the fourth X-touch electrode line closest to the boundary of the first direction among the plurality of fourth X-touch electrode lines disposed on the fourth sub-region is synchronized with the driving period of the third X-touch electrode line closest to the boundary of the first direction among the plurality of third X-touch electrode lines.

5. The touch display device according to claim 4, wherein, The driving periods of the first X-touch electrode line closest to the boundary of the first direction, the driving periods of the second X-touch electrode line closest to the boundary of the first direction, the driving periods of the third X-touch electrode line closest to the boundary of the first direction, and the driving periods of the fourth X-touch electrode line closest to the boundary of the first direction are synchronized with each other.

6. The touch display device according to claim 4, wherein, Each of the multiple Y-touch electrode lines is electrically connected to each of the multiple sensing units via the multiple touch wiring lines, and The structure of the sensing unit electrically connected to the Y-touch electrode line closest to the boundary of the second direction is different from the structure of the sensing unit electrically connected to the rest of the Y-touch electrode lines.

7. The touch display device according to claim 6, wherein, The sensing unit electrically connected to the Y-touch electrode line closest to the boundary of the second direction is electrically connected to one Y-touch electrode line, while each of the sensing units electrically connected to the remaining Y-touch electrode lines is electrically connected to two or more Y-touch electrode lines.

8. The touch display device according to claim 6, wherein, The touch drive circuit electrically connected to multiple first Y-touch electrode lines disposed on the first sub-region is different from the touch drive circuit electrically connected to multiple third Y-touch electrode lines disposed on the third sub-region, and The touch drive circuit electrically connected to multiple second Y-touch electrode lines disposed on the second sub-region is different from the touch drive circuit electrically connected to multiple fourth Y-touch electrode lines disposed on the fourth sub-region.

9. The touch display device according to claim 1, further comprising: The memory is configured to store sensing data based on touch sensing signals obtained from the plurality of Y-touch electrode lines disposed on the plurality of sub-regions.

10. The touch display device according to claim 1, wherein, At least some of the plurality of X-touch electrode lines disposed on the first sub-region and the second sub-region are electrically connected to touch pads disposed on the first pad region located outside the active region, and At least some of the multiple Y-touch electrode lines disposed on the first sub-region and the second sub-region are electrically connected to touch pads disposed on a second pad region located outside the active region.

11. The touch display device according to claim 10, wherein, At least some of the lines that make an electrical connection between the touch pad and the touch driving circuit located on the first pad area intersect with at least some of the lines that make an electrical connection between the touch pad located on the second pad area and the touch driving circuit located on the outside of the display panel.

12. A touch display device, the touch display device comprising: Multiple X-touch electrode lines, the multiple X-touch electrode lines including two or more X-touch electrodes electrically connected to each other along a first direction, and respectively disposed on each of the multiple sub-regions included in the active region; as well as Multiple Y-touch electrode lines, each comprising two or more Y-touch electrodes electrically connected to each other along a second direction intersecting the first direction, and respectively disposed on each of the multiple sub-regions. The plurality of sub-regions includes a first sub-region and a second sub-region, which are divided by the boundary in the first direction. Specifically, the interval between applying a touch drive signal to the first X-touch electrode line closest to the boundary in the first direction among the plurality of first X-touch electrode lines disposed in the first sub-region and applying a touch drive signal to the second X-touch electrode line closest to the boundary in the first direction among the plurality of second X-touch electrode lines disposed in the second sub-region is less than the interval between applying the touch drive signal to the first X-touch electrode line closest to the boundary in the first direction and applying the touch drive signal to the remaining second X-touch electrode lines. Wherein, at least a portion of the time period during which the touch drive signal is applied to the first X-touch electrode line closest to the boundary overlaps with at least a portion of the time period during which the touch drive signal is applied to the second X-touch electrode line closest to the boundary, and Specifically, each of the plurality of first X-touch electrode lines is driven sequentially in one direction, and while driving a corresponding one of the plurality of first X-touch electrode lines, each of the plurality of second X-touch electrode lines is driven sequentially in the opposite direction to the first direction.

13. The touch display device according to claim 12, wherein, Among the plurality of first X-touch electrode lines and the plurality of second X-touch electrode lines, the touch drive signal is provided sequentially from the X-touch electrode line positioned away from the boundary of the first direction to the X-touch electrode line positioned close to the boundary of the first direction, or from the X-touch electrode line positioned close to the boundary of the first direction to the X-touch electrode line positioned away from the boundary of the first direction.

14. The touch display device according to claim 12, wherein, Touch sensing signals are simultaneously detected from the multiple Y-touch electrode lines disposed on the multiple sub-regions.

15. A touch display device, the touch display device comprising: Multiple X-touch electrode lines, the multiple X-touch electrode lines including two or more X-touch electrodes electrically connected to each other along a first direction, and respectively disposed on each of the multiple sub-regions included in the active region; as well as Multiple Y-touch electrode lines, each comprising two or more Y-touch electrodes electrically connected to each other along a second direction intersecting the first direction, and respectively disposed on each of the multiple sub-regions. Specifically, a single-ended sensing method based on the Y-touch electrode line detects a touch sensing signal from the Y-touch electrode line closest to the boundary along the second direction among the plurality of Y-touch electrode lines, and a differential sensing method using Y-touch electrode line pairs among the remaining Y-touch electrode lines detects a touch sensing signal from the remaining Y-touch electrode lines.

16. The touch display device according to claim 15, wherein, The touch drive circuits that drive the multiple Y-touch electrode lines disposed on each of the two sub-regions located on both sides of the boundary in the second direction are different from each other.

17. The touch display device according to claim 15, wherein, Two X-touch electrode lines located on each of the two sub-regions situated on either side of the boundary in the first direction, and closest to the boundary in the first direction, are simultaneously driven.

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