Touch display device

Abstract

Embodiments of the present disclosure relate to a touch display device, wherein a portion of the touch routing wiring for driving a touch electrode is placed in an active area and electrically connected to an auxiliary routing pattern that overlaps with the touch routing wiring, thereby reducing the area where the touch routing wiring is placed and the load on the touch routing wiring.

Description

Technology Field

[0001] The embodiments of the present disclosure relate to a touch display device. Background Technology

[0002] The display device recognizes a touch by a user's finger or pen on the display panel to provide various functions to the user, and performs input processing based on the recognized touch.

[0003] The display device may include, for example, a plurality of touch electrodes disposed on a display panel. The display device may drive the plurality of touch electrodes and sense a user's touch by detecting a change in capacitance that occurs when a user touches the display panel.

[0004] A display device may include various configurations for image display in addition to configurations for touch sensing. A method is required to implement touch electrodes on a display panel so as to improve touch sensing performance without degrading the image display performance of the display device. The problem to be solved

[0005] Embodiments of the present disclosure may provide a touch sensor structure capable of reducing the load of the touch routing wiring and an area in which touch routing wiring for driving a touch electrode disposed on a display panel is disposed. means of solving the problem

[0006] Embodiments of the present disclosure may provide a touch display device comprising a plurality of light-emitting elements disposed in an active area of ​​a display panel, an encapsulation layer disposed on the plurality of light-emitting elements, a plurality of touch electrodes disposed on the encapsulation layer, a plurality of touch routing lines electrically connected to at least one of the plurality of touch electrodes, and a plurality of auxiliary routing patterns disposed in the active area and located between the encapsulation layer and the plurality of touch routing lines, and electrically connected to at least one of the plurality of touch routing lines at at least one point located in the active area.

[0007] Embodiments of the present disclosure may provide a touch display device comprising an active area including a first sub-area and a second sub-area, a plurality of touch electrodes disposed separately in each of the first sub-area and the second sub-area, a plurality of touch routing lines electrically connected to at least one touch electrode disposed in the first sub-area among the plurality of touch electrodes and a portion disposed in the second sub-area, and a plurality of auxiliary routing patterns disposed in the second sub-area and electrically connected to an overlapping touch routing line among the plurality of touch routing lines, and having a width greater than the width of the overlapping touch routing line. Effects of the invention

[0008] According to embodiments of the present disclosure, by placing a portion of the touch routing wiring in an active area and electrically connecting it to an auxiliary routing pattern located in an area overlapping with the touch routing wiring, the load on the area where the touch routing wiring is placed and the load on the touch routing wiring can be reduced. Brief explanation of the drawing

[0009] FIG. 1 is a schematic diagram showing the configuration of a touch display device according to embodiments of the present disclosure. FIG. 2 is a diagram showing an example of a circuit structure of a subpixel included in a touch display device according to embodiments of the present disclosure. FIGS. 3 to 5 are drawings illustrating examples of touch sensor structures included in a touch display device according to embodiments of the present disclosure. FIG. 6 is a diagram showing an example of the structure of a touch electrode included in the touch sensor structure of a touch display device according to embodiments of the present disclosure. FIG. 7 is a diagram showing an example in which the touch sensor structure illustrated in FIG. 5 is implemented by the structure of the touch electrode illustrated in FIG. 6. FIG. 8 is a diagram showing an example of the structure of an electrode constituting the touch sensor structure of a touch display device according to embodiments of the present disclosure. FIG. 9 is a diagram showing an example of the arrangement relationship of the configuration included in the electrode and subpixel illustrated in FIG. 8. FIG. 10 is a drawing showing an example of the cross-sectional structure of the AA' portion shown in FIG. 9. FIGS. 11 to 15 are drawings showing specific examples in which a touch sensor structure of a touch display device according to embodiments of the present disclosure is implemented in an active area of ​​a display panel. FIG. 16 is a drawing showing a specific example in which a touch sensor structure of a touch display device according to embodiments of the present disclosure is implemented in the peripheral area of ​​the boundary between the active area and the non-active area of ​​a display panel. FIG. 17 is a drawing showing a specific example in which a touch sensor structure of a touch display device according to embodiments of the present disclosure is implemented between an active area and a non-active area of ​​a display panel. FIG. 18 is a drawing showing a specific example in which a touch sensor structure of a touch display device according to embodiments of the present disclosure is implemented in a non-active area including a pad area of ​​a display panel. Specific details for implementing the invention

[0010] Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the exemplary drawings. In assigning reference numerals to the components of each drawing, the same components may have the same reference numeral as much as possible, even if they are shown in different drawings. Furthermore, in describing the present disclosure, if it is determined that a detailed description of related known components or functions may obscure the essence of the present disclosure, such detailed description may be omitted. Where terms such as "comprising," "having," or "consisting of" are used in this specification, other parts may be added unless "only" is used. Where a component is expressed in the singular, it may include a plural unless there is a special explicit description otherwise.

[0011] Additionally, terms such as first, second, A, B, (a), (b), etc., may be used to describe the components of the present disclosure. These terms are used merely to distinguish the components from other components, and the nature, order, sequence, or number of the components are not limited by such terms.

[0012] In describing the positional relationship of components, where it is stated that two or more components are "connected," "combined," or "joined," it should be understood that while the two or more components may be directly "connected," "combined," or "joined," they may also be "connected," "combined," or "joined" with other components "intervened." Here, the other components may be included in one or more of the two or more components that are "connected," "combined," or "joined" with one another.

[0013] In describing the temporal flow relationship regarding components, methods of operation, or methods of production, for example, when the temporal or sequential relationship is described using "after," "following," "next," or "before," it may include cases where the relationship is not continuous unless "immediately" or "directly" is used.

[0014] Meanwhile, where numerical values ​​or corresponding information regarding a component (e.g., levels, etc.) are mentioned, even without separate explicit notation, the numerical values ​​or corresponding information may be interpreted as including a range of error that may occur due to various factors (e.g., process factors, internal or external shocks, noise, etc.).

[0015] Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the attached drawings.

[0016] FIG. 1 is a schematic diagram showing the configuration of a touch display device (100) according to embodiments of the present disclosure. FIG. 2 is a diagram showing an example of the circuit structure of a subpixel (SP) included in a touch display device (100) according to embodiments of the present disclosure.

[0017] Referring to FIG. 1, the touch display device (100) may include a display panel (110), a gate driving circuit (120) for driving the display panel (110), a data driving circuit (130), and a controller (140). The touch display device (100) may further include a configuration for touch sensing in addition to a configuration for driving the display.

[0018] The display panel (110) may include an active area (AA) in which a plurality of subpixels (SP) are arranged, and a non-active area (NA) located outside the active area (AA). A plurality of gate lines (GL) and a plurality of data lines (DL) may be arranged on the display panel (110). A plurality of subpixels (SP) may be located in an area where the gate lines (GL) and data lines (DL) intersect.

[0019] The gate driving circuit (120) can be controlled by a controller (140). The gate driving circuit (120) can control the driving timing of a plurality of subpixels (SP) by sequentially outputting scan signals to a plurality of gate lines (GL) arranged on a display panel (110).

[0020] The gate driving circuit (120) may include one or more gate driver integrated circuits (GDICs). Depending on the driving method, the gate driving circuit (120) may be located on only one side of the display panel (110) or on both sides.

[0021] Each gate driver integrated circuit (GDIC) may be connected to a bonding pad of a display panel (110) using a Tape Automated Bonding (TAB) method or a Chip On Glass (COG) method. Alternatively, each gate driver integrated circuit (GDIC) may be implemented as a Gate In Panel (GIP) type and placed directly on the display panel (110). Alternatively, each gate driver integrated circuit (GDIC) may be integrated and placed on the display panel (110). Alternatively, each gate driver integrated circuit (GDIC) may be implemented using a Chip On Film (COF) method, which is mounted on a film connected to the display panel (110).

[0022] 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 data voltage (Vdata) to each data line (DL) in accordance with the timing at which a scan signal is applied through the gate line (GL), so that each subpixel (SP) can express brightness according to the image data.

[0023] The data driving 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, and an output buffer, etc.

[0024] Each source driver integrated circuit (SDIC) may be connected to a bonding pad of a display panel (110) using a tape automatic bonding (TAB) method or a chip on glass (COG) method. Alternatively, each source driver integrated circuit (SDIC) may be placed directly on the display panel (110). Alternatively, each source driver integrated circuit (SDIC) may be integrated and placed on the display panel (110). Alternatively, each source driver integrated circuit (SDIC) may be implemented using a chip on film (COF) method. In this case, each source driver integrated circuit (SDIC) may be mounted on a film connected to the display panel (110) and electrically connected to the display panel (110) through wiring on the film.

[0025] The controller (140) supplies various control signals to the gate driving circuit (120) and the data driving circuit (130) and can control the driving of the gate driving circuit (120) and the data driving circuit (130).

[0026] The controller (140) may be mounted on a printed circuit board or a flexible printed circuit. The controller (140) may be electrically connected to a gate driving circuit (120) and a data driving circuit (130) through the printed circuit board or the flexible printed circuit.

[0027] The controller (140) can control the gate driving circuit (120) to output a scan signal according to the timing set in each frame. The controller (140) can convert image data received from an external source (e.g., a host system) to a data signal format used by the data driving circuit (130) and output the converted image data (DATA) to the data driving circuit (130).

[0028] The controller (140) can receive various timing signals, including a vertical synchronization signal (VSYNC), a horizontal synchronization signal (HSYNC), an input data enable signal (DE: Data Enable), and a clock signal (CLK), along with video data (DATA), from an external source (e.g., a host system).

[0029] The controller (140) can generate various control signals using various timing signals received from the outside and output them to the gate driving circuit (120) and the data driving circuit (130).

[0030] For example, the controller (140) can output various gate control signals (GCS), including a gate start pulse (GSP), a gate shift clock (GSC), and a gate output enable signal (GOE), to the gate driving circuit (120) to control the gate driving circuit (120).

[0031] The gate start pulse (GSP) can control the operation start timing of one or more gate driver integrated circuits (GDICs) constituting the gate driving circuit (120). The gate shift clock (GSC) is a clock signal commonly input to one or more gate driver integrated circuits (GDICs) and can control the shift timing of the scan signal. The gate output enable signal (GOE) can specify timing information for one or more gate driver integrated circuits (GDICs).

[0032] Additionally, the controller (140) can output various data control signals (DCS), including a source start pulse (SSP), a source sampling clock (SSC), and a source output enable signal (SOE), to the data driving circuit (130) in order to control the data driving circuit (130).

[0033] The source start pulse (SSP) can control the data sampling start timing of one or more source driver integrated circuits (SDICs) constituting the data driving circuit (130). The source sampling clock (SSC) may be a clock signal that controls the data sampling timing in each of the one or more source driver integrated circuits (SDICs). The source output enable signal (SOE) can control the output timing of the data driving circuit (130).

[0034] The touch display device (100) may further include a power management integrated circuit that supplies various voltages or currents to a display panel (110), a gate driving circuit (120), and a data driving circuit (130), or controls various voltages or currents to be supplied.

[0035] Each subpixel (SP) may be an area defined by the intersection of a gate line (GL) and a data line (DL), and depending on the type of touch display device (100), a liquid crystal layer may be placed or a light-emitting element may be placed.

[0036] For example, if the touch display device (100) is an organic light-emitting display device, an organic light-emitting diode (OLED) and several circuit elements may be arranged in a plurality of subpixels (SP). By controlling the current supplied to the organic light-emitting diode (OLED) by the several circuit elements, each subpixel (SP) can display a brightness corresponding to image data.

[0037] Alternatively, depending on the case, a light-emitting diode (LED), a micro light-emitting diode (μLED), or a quantum dot light-emitting diode (QLED) may be placed in the subpixel (SP).

[0038] Referring to FIG. 2, each of the plurality of subpixels (SP) may include a light-emitting element (ED). The subpixel (SP) may include a driving transistor (DRT) that controls the driving current supplied to the light-emitting element (ED).

[0039] The subpixel (SP) may include at least one circuit element in addition to the light-emitting element (ED) and the driving transistor (DRT) for driving the subpixel (SP).

[0040] For example, a subpixel (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).

[0041] The example illustrated in FIG. 2 shows a 6T1C structure with six transistors and one capacitor arranged therein, but embodiments of the present disclosure are not limited thereto. The example illustrated in FIG. 2 shows a case where the transistors are of the P type, but at least some of the transistors arranged in the subpixel (SP) may be of the N type.

[0042] In addition, the transistors placed in the subpixel (SP) may include, for example, a semiconductor layer made of low-temperature polycrystalline silicon (LTPS) or a semiconductor layer made of oxide semiconductor. In addition, depending on the case, transistors including a semiconductor layer made of low-temperature polycrystalline silicon and transistors including a semiconductor layer made of oxide semiconductor may be mixed and placed in the subpixel (SP).

[0043] 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 a first scan signal (Scan1) supplied through the first gate line (GL1). The first transistor (T1) can control the application of a data voltage (Vdata) to the first node (N1).

[0044] The second transistor (T2) may be electrically connected between the second node (N2) and the third node (N3). The second node (N2) may be the gate node of the driving transistor (DRT). The third node (N3) may be the drain node or the source node of the driving transistor (DRT). The second transistor (T2) may be controlled by a second scan signal (Scan2) supplied through the second gate line (GL2). The second transistor (T2) may perform an operation to compensate for a change in the threshold voltage of the driving transistor (DRT).

[0045] The third transistor (T3) can be electrically connected between the line supplying the reference voltage (Vref) and the first node (N1). The third transistor (T3) can be controlled by a light emission control signal (EM) supplied through the light emission control line (EML). The third transistor (T3) can control the discharge of the first node (N1) or the application of the reference voltage (Vref) to the first node (N1).

[0046] The fourth transistor (T4) can be electrically connected between the third node (N3) and the fifth node (N5). The fifth node (N5) may be a node electrically connected to the light-emitting element (ED). The fourth transistor (T4) can be controlled by a light-emitting control signal (EM) supplied through the light-emitting control line (EML). The fourth transistor (T4) can control the timing at which a driving current is supplied to the light-emitting element (ED).

[0047] The fifth transistor (T5) can be electrically connected between the line to which the reference voltage (Vref) is supplied and the fifth node (N5). The fifth transistor (T5) can be controlled by a second scan signal (Scan2) supplied through the second gate line (GL2). The fifth transistor (T5) can control whether the fifth node (N5) is discharged or whether the reference voltage (Vref) is applied to the fifth node (N5).

[0048] The driving transistor (DRT) may be electrically connected between the fourth node (N4) and the third node (N3). The fourth node (N4) may be electrically connected to a line to which the first driving voltage (VDD) is supplied. The first driving voltage (VDD) may be, for example, a high-potential driving voltage. The fourth node (N4) may be the source node or the drain node of the driving transistor (DRT).

[0049] The driving transistor (DRT) can be controlled by the voltage difference between the second node (N2) and the fourth node (N4). The driving transistor (DRT) can control the driving current supplied to the light-emitting element (ED).

[0050] The driving transistor (DRT) may include a back gate electrode electrically connected to the fourth node (N4). The current output of the driving transistor (DRT) can be stabilized by the back gate electrode electrically connected to the source node of the driving transistor (DRT). The back gate electrode may be disposed, for example, using a metal layer to block external light from being incident on the channel of the driving transistor (DRT).

[0051] The light-emitting element (ED) can be electrically connected between the fifth node (N5) and the line to which the second driving voltage (VSS) is supplied. The second driving voltage (VSS) may be, for example, a low-potential driving voltage.

[0052] The light-emitting element (ED) may include a first electrode (E1) electrically connected to a 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).

[0053] The light-emitting element (ED) can display brightness according to the driving current supplied by the driving transistor (DRT). The driving timing of the light-emitting element (ED) can be controlled by the fourth transistor (T4).

[0054] To briefly explain the driving timing of the subpixel (SP) shown in FIG. 2, a second scan signal (Scan2) of the turn-on level can be supplied through the second gate line (GL2). Since the transistor placed in the subpixel (SP) is of the P type, the turn-on level can be a low level.

[0055] The second transistor (T2) and the fifth transistor (T5) can be turned on by the second scan signal (Scan2) of the turn-on level.

[0056] Since the second transistor (T2) is turned on, the second node (N2) and the third node (N3) can be electrically connected. A voltage in which the threshold voltage of the driving transistor (DRT) is reflected in the first driving voltage (VDD) can be applied to the second node (N2) through the second transistor (T2). Through this process, a change in the threshold voltage of the driving transistor (DRT) can be compensated.

[0057] Since the fifth transistor (T5) is turned on, a reference voltage (Vref) can be applied to the fifth node (N5). The fifth node (N5) can be initialized.

[0058] Afterwards, a first scan signal (Scan1) of the turn-on level can be supplied through the first gate line (GL1).

[0059] The first transistor (T1) can be turned on by the first scan signal (Scan1) of the turn-on level.

[0060] Since the first transistor (T1) is turned on, a data voltage (Vdata) can be applied to the first node (N1).

[0061] A first driving voltage (VDD) reflecting the data voltage (Vdata) and the threshold voltage of the driving transistor (DRT) can be applied across the storage capacitor (Cstg).

[0062] Subsequently, a turn-on level light emission control signal (EM) can be supplied through the light emission control line (EML).

[0063] The third transistor (T3) and the fourth transistor (T4) can be turned on.

[0064] Since the third transistor (T3) is turned on, the voltage of the first node (N1) can be changed to the reference voltage (Vref). The voltage of the second node (N2) coupled with the first node (N1) can be changed according to the change in the voltage of the first node (N1).

[0065] A voltage reflecting the threshold voltage of the driving transistor (DRT) and the data voltage (Vdata) can be applied to the second node (N2) as the first driving voltage (VDD), and a voltage reflecting the first driving voltage (VDD) can be applied to the fourth node (N4). The difference between the voltage of the second node (N2) and the voltage of the fourth node (N4) may be a voltage reflecting the data voltage (Vdata) and the threshold voltage of the driving transistor (DRT). A driving current corresponding to the data voltage (Vdata) can be supplied by the driving transistor (DRT).

[0066] Since the fourth transistor (DRT) is turned on, the driving current supplied by the driving transistor (DRT) can be supplied to the light-emitting element (ED).

[0067] A light-emitting element (ED) displays brightness according to the driving current, and a subpixel (SP) including the light-emitting element (ED) can display an image corresponding to the image data.

[0068] In addition, embodiments of the present disclosure may provide a function to sense a user's touch on a display panel (110) by implementing a touch sensor structure on a display panel (110) that displays an image.

[0069] FIGS. 3 to 5 are drawings showing examples of touch sensor structures included in a touch display device (100) according to embodiments of the present disclosure.

[0070] Referring to FIG. 3, the touch display device (100) may include a plurality of touch electrode lines (TEL) and a plurality of touch routing lines (TL) disposed on a display panel (110). The touch display device (100) may include a touch driving circuit (150) that drives the plurality of touch electrode lines (TEL) and the plurality of touch routing lines (TL).

[0071] Each of the plurality of touch electrode lines (TEL) can be electrically connected to a touch driving circuit (150) via a touch routing wire (TL). The touch driving circuit (150) may be placed separately, or, in some cases, may be placed integrated with a circuit for driving a display. For example, the touch driving circuit (150) may be placed in an integrated form with a data driving circuit (130).

[0072] Each of the plurality of touch electrode lines (TEL) may include a plurality of touch electrodes (TE) electrically connected to each other along one direction. Additionally, each of the plurality of touch electrode lines (TEL) may include a plurality of touch electrode connection patterns (CL) electrically connecting the plurality of touch electrodes (TE) to each other.

[0073] For example, each of the plurality of X-touch electrode lines (X-TEL) may include a plurality of X-touch electrodes (X-TE) arranged along a first direction and a plurality of X-touch electrode connection patterns (X-CL) that electrically connect the plurality of X-touch electrodes (X-TE) to each other.

[0074] Each of the plurality of Y-touch electrode lines (Y-TEL) may include a plurality of Y-touch electrodes (Y-TE) arranged along a second direction intersecting the first direction and a plurality of Y-touch electrode connection patterns (Y-CL) that electrically connect the plurality of Y-touch electrodes (Y-TE) to each other.

[0075] The X-touch electrode line (X-TEL) and the Y-touch electrode line (Y-TEL) may be placed on different layers. Alternatively, the X-touch electrode (X-TE) and the Y-touch electrode (Y-TE) may be placed 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) may be placed on a different layer from the touch electrode (TE).

[0076] The touch electrode (TE) may be rectangular, for example, but is not limited thereto.

[0077] The touch electrode (TE) is made of a transparent conductive material and can be placed without interfering with the image display function of the display panel (110).

[0078] Alternatively, the touch electrode (TE) may be made of an opaque metal. In this case, the touch electrode (TE) may be in a form in which an area corresponding to the light-emitting region of the light-emitting element (ED) placed on the display panel (110) is opened. For example, the touch electrode (TE) may be implemented in a mesh form and placed to avoid the light-emitting region.

[0079] In a structure in which a plurality of X-touch electrode lines (X-TEL) and a plurality of Y-touch electrode lines (Y-TEL) are arranged to intersect each other, a touch driving circuit (150) can drive the touch electrode lines (TEL) through the touch routing wiring (TL) and perform touch sensing.

[0080] For example, one of the X-touch electrode line (X-TEL) and the Y-touch electrode line (Y-TEL) may 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) may be a touch sensing electrode to which a touch sensing signal is detected.

[0081] The touch driving circuit (150) can detect a change in mutual capacitance that occurs when a user touches while different signals are applied to the X-touch electrode line (X-TEL) and the Y-touch electrode line (Y-TEL).

[0082] The touch driving circuit (150) can transmit sensing data based on the detected change in mutual capacitance to the touch controller. The touch controller can detect whether a touch has occurred on the display panel (110) and the touch coordinates based on the sensing data received from the touch driving circuit (150).

[0083] The touch electrode line (TEL) placed on the display panel (110) may be divided and placed in multiple areas in the active area (AA).

[0084] Since the touch electrode line (TEL) is divided and arranged by area, the load on the touch electrode line (TEL) can be reduced. When the area of ​​the display panel (110) increases, the load on the touch electrode line (TEL) is reduced and the performance of touch sensing can be improved.

[0085] Referring to FIG. 4, the active area (AA) of the display panel (110) may include a plurality of sub-areas (SAA) separated by a boundary in a first direction and a boundary in a second direction.

[0086] The active area (AA) may include at least two sub-areas (SAA) separated by a first boundary (BL1) according to a first direction. The active area (AA) may include at least two sub-areas (SAA) separated by a second boundary (BL2) according to a second direction.

[0087] For example, a first sub-region (SAA1) and a second sub-region (SAA2) can be distinguished by a first boundary (BL1). A third sub-region (SAA3) and a fourth sub-region (SAA4) can be distinguished by the first boundary (BL1).

[0088] The first sub-region (SAA1) and the third sub-region (SAA3) can be separated by the second boundary (BL2). The second sub-region (SAA2) and the fourth sub-region (SAA4) can be separated by the second boundary (BL2).

[0089] FIG. 4 illustrates an example in which an active area (AA) is divided into four sub-areas (SAA), but the active area (AA) may be divided into multiple sub-areas (SAA) by a first boundary (BL1) and a second boundary (BL2).

[0090] A touch electrode line (TEL) placed in each of a plurality of sub-regions (SAA) can be placed separately from a touch electrode line (TEL) placed in another sub-region (SAA).

[0091] The touch electrode lines (TEL) placed in each of the multiple sub-regions (SAA) can be driven independently.

[0092] For example, a first X-touch electrode line (X-TEL-1) placed in a first sub-region (SAA1) can be electrically connected to a first touch driving circuit (151) through a first X-touch routing wire (X-TL-1). A first Y-touch electrode line (Y-TEL-1) can be electrically connected to a first touch driving circuit (151) through a first Y-touch routing wire (Y-TL-1).

[0093] The second X-touch electrode line (X-TEL-2) disposed in the second sub-region (SAA2) can be electrically connected to the second touch driving circuit (152) through the second X-touch routing wiring (X-TL-2). The second Y-touch electrode line (Y-TEL-2) can be electrically connected to the second touch driving circuit (152) through the second Y-touch routing wiring (Y-TL-2).

[0094] 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) are arranged in a structure similar to the touch electrode lines (TEL) placed in the first sub-region (SAA1) and the second sub-region (SAA2), and can be driven in a similar manner.

[0095] Since the touch electrode line (TEL) placed in the first sub-region (SAA1) and the touch electrode line (TEL) placed in the second sub-region (SAA2) are electrically separated from each other and driven by different touch driving circuits (150), the load for touch sensing is reduced and the performance of touch sensing can be improved.

[0096] Additionally, depending on the case, touch electrode lines (TEL) placed in two or more sub-regions (SAA) may be driven by the same touch driving circuit (150). For example, a touch electrode line (TEL) placed in the first sub-region (SAA1) and a touch electrode line (TEL) placed in the second sub-region (SAA2) may be driven by the same touch driving circuit (150). A touch electrode line (TEL) placed in the third sub-region (SAA3) and a touch electrode line (TEL) placed in the fourth sub-region (SAA4) may be driven by the same touch driving circuit (150). Alternatively, as another example, touch electrode lines (TEL) placed in the first sub-region (SAA1), the second sub-region (SAA2), the third sub-region (SAA3), and the fourth sub-region (SAA4) may be driven by the same touch driving circuit (150). Even in this case, since the touch electrode lines (TEL) placed in each sub-area (SAA) are arranged in a structure separated from each other, the load on the touch electrode lines (TEL) is reduced, and the performance of touch sensing can be improved.

[0097] In this way, in a structure where the touch electrode line (TEL) is separated and arranged in each of the multiple sub-regions (SAA), a part of the touch routing wiring (TL) can be arranged in the active area (AA).

[0098] For example, a first X-touch routing wire (X-TL-1) electrically connected to a first X-touch electrode line (X-TEL-1) of a first sub-region (SAA1) and a second X-touch routing wire (X-TL-2) electrically connected to a second X-touch electrode line (X-TEL-2) of a second sub-region (SAA2) may be placed in a non-active area (NA).

[0099] A second Y-touch routing wire (Y-TL-2) electrically connected to a second Y-touch electrode line (Y-TEL-2) of a second sub-region (SAA2) can be placed in a non-active area (NA).

[0100] A portion of the first Y-touch routing wiring (Y-TL-1) electrically connected to the first Y-touch electrode line (Y-TEL-1) of the first sub-region (SAA1) can be placed in the active area (AA).

[0101] A portion of the first Y-touch routing wiring (Y-TL-1) may be placed in the second sub-region (SAA2). The first Y-touch routing wiring (Y-TL-1) may be electrically connected to the first Y-touch electrode line (Y-TEL-1) placed in the first sub-region (SAA1) by passing through the second sub-region (SAA2).

[0102] Since a portion of the first Y-touch routing wire (Y-TL-1) is placed in the second sub-region (SAA2), at least one of the second X-touch electrode line (X-TEL-2) and the second Y-touch electrode line (Y-TEL-2) placed in the second sub-region (SAA2) can be placed separately from the area where the first Y-touch routing wire (Y-TL-1) is placed. FIG. 4 shows an example in which the second Y-touch electrode line (Y-TEL-2) is placed separately in the second sub-region (SAA2) due to the placement of the first Y-touch routing wire (Y-TL-1).

[0103] In this way, when a touch electrode line (TEL) is divided and arranged for each sub-region (SAA), the number of touch routing wires (TL) connected to the touch electrode line (TEL) may increase. Since the number of touch routing wires (TL) increases, the non-active area (NA) may increase due to the arrangement of the touch routing wires (TL). However, since the first Y-touch routing wire (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 area (AA), the addition of a separate area for the arrangement of the first Y-touch routing wire (Y-TL-1) in the non-active area (NA) may not be required. A touch sensor structure divided into sub-regions (SAA) can be implemented without an increase in the non-active area (NA) due to the addition of the first Y-touch routing wire (Y-TL-1).

[0104] A touch sensor structure divided into multiple sub-regions (SAA) can be divided into an upper touch sensor section and a lower touch sensor section based on a first boundary (BL1). Additionally, the touch sensor structure can be divided into a left touch sensor section and a right touch sensor section based on a second boundary (BL2). Here, the lower touch sensor section may be located closer to the pad to which the touch routing wire (TL) is connected than the upper touch sensor section. That is, the distance between the lower touch sensor section and the area where the pad to which the touch routing wire (TL) is connected is placed may be smaller than the distance between the upper touch sensor section and the area where the pad is placed.

[0105] In addition, since the area of ​​the second Y-touch electrode line (Y-TEL-2) is reduced by the first Y-touch routing wiring (Y-TL-1), the area of ​​the first Y-touch electrode line (Y-TEL-1) can be made equal to or similar to the area of ​​the second Y-touch electrode line (Y-TEL-2), thereby preventing a deviation in the sensitivity of the touch sensing.

[0106] Referring to FIG. 5, at least one first dummy electrode (DME1) separated from the first Y-touch electrode line (Y-TEL-1) may be placed in at least a portion of the area of ​​the first sub-region (SAA1) corresponding to the area where the first Y-touch routing wire (Y-TL-1) is placed in the second sub-region (SAA2).

[0107] The first dummy electrode (DME1) can be electrically isolated from the first Y-touch electrode line (Y-TEL-1).

[0108] The width of the area where the first dummy electrode (DME1) is placed may be the same as or similar to the width of the first Y-touch routing wire (Y-TL-1). Alternatively, the width of the area where the first dummy electrode (DME1) is placed may be the same as or similar to the width of the area in the second sub-area (SAA2) where the second Y-touch electrode line (Y-TEL-2) is not placed. Additionally, the spacing between the two parts of the first Y-touch electrode line (Y-TEL-1) placed on both sides of the first dummy electrode (DME1) may be the same as or similar to the spacing between the two parts of the second Y-touch electrode line (Y-TEL-2) placed on both sides of the first Y-touch routing wire (Y-TL-1).

[0109] The area of ​​the first Y-touch electrode line (Y-TEL-1) placed in the first sub-region (SAA1) may be substantially the same as the area of ​​the second Y-touch electrode line (Y-TEL-2) placed in the second sub-region (SAA2).

[0110] Even if the first Y-touch routing wire (Y-TL-1) is positioned to pass through the first sub-region (SAA1), the occurrence of a difference in touch sensitivity between the first Y-touch electrode line (Y-TEL-1) of the first sub-region (SAA1) and the second Y-touch electrode line (Y-TEL-2) of the second sub-region (SAA2) can be prevented or the difference can be reduced.

[0111] According to embodiments of the present disclosure, an active area (AA) is divided into a plurality of sub-areas (SAA), and a touch electrode line (TEL) is placed in each of the plurality of sub-areas (SAA) to sense touch, thereby reducing the load on the touch electrode line (TEL) so that the touch sensing performance can be improved even if the area of ​​the active area (AA) increases.

[0112] In addition, by making the area of ​​the touch electrode line (TEL) placed in each sub-region (SAA) the same or similar, deviation in touch sensitivity caused by the touch electrode line (TEL) placed in each sub-region (SAA) can also be prevented.

[0113] Each of the multiple touch electrodes (TE) included in the touch electrode line (TEL) may be rectangular as in the example above, but may have various structures to improve touch sensing performance.

[0114] FIG. 6 is a diagram showing an example of the structure of a touch electrode (TE) included in the touch sensor structure of a touch display device (100) according to embodiments of the present disclosure.

[0115] Referring to FIG. 6, an example of the shape of an X-touch electrode (X-TE) included in an X-touch electrode line (X-TEL) and a Y-touch electrode (Y-TE) included in a Y-touch electrode line (Y-TEL) is shown. FIG. 6 is a drawing for explaining an example of the structure of a touch electrode (TE), and exemplarily shows a 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 (Y-TE) are placed on the same layer.

[0116] X-touch electrodes (X-TE) and Y-touch electrodes (Y-TE) can have similar shapes.

[0117] To explain the shape of the touch electrode (TE) using the X-touch electrode (X-TE) as an example, the X-touch electrode (X-TE) may include at least one body portion (X-TE-a) and a plurality of wing portions (X-TE-b).

[0118] The body portion (X-TE-a) of the X-touch electrode (X-TE) may be arranged along a first direction or a second direction, and FIG. 6 shows an example in which the body portion (X-TE-a) of the X-touch electrode (X-TE) is arranged along a second direction.

[0119] The wing portion (X-TE-b) of the X-touch electrode (X-TE) can be arranged along a direction intersecting the body portion (X-TE-a), and FIG. 6 shows an example in which the wing portion (X-TE-b) of the X-touch electrode (X-TE) is arranged along a first direction.

[0120] The width of the body portion (X-TE-a) of the X-touch electrode (X-TE) may 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 body portion (X-TE-a) of the X-touch electrode (X-TE) may be greater than the width of the wing portion (X-TE-b) of the X-touch electrode (X-TE).

[0121] The body portion (X-TE-a) of the X-touch electrode (X-TE) can be arranged alternately with the body portion (Y-TE-a) of the Y-touch electrode (Y-TE) in a first direction.

[0122] The wing portion (X-TE-b) of the X-touch electrode (X-TE) can be arranged alternately with the wing portion (Y-TE-b) of the Y-touch electrode (Y-TE) in a second direction.

[0123] The wing portion (X-TE-b) of the X-touch electrode (X-TE) and the wing portion (Y-TE-b) of the Y-touch electrode (Y-TE) can be arranged in an interlocked manner. The area where the outer edge of the X-touch electrode (X-TE) and the outer edge of the Y-touch electrode (Y-TE) face each other can be increased. Additionally, the length of the boundary between the X-touch electrode (X-TE) and the Y-touch electrode (Y-TE) can be increased. The performance of touch sensing based on the change in mutual capacitance between the X-touch electrode (X-TE) and the Y-touch electrode (Y-TE) can be improved.

[0124] The X-touch electrode (X-TE) and the Y-touch electrode (Y-TE) can be placed using electrodes placed on the same layer. One of the X-touch electrode (X-TE) and the Y-touch electrode (Y-TE) may be connected by an electrode placed on the same layer as the touch electrode (TE), and the other may be connected by an electrode placed on a different layer from the touch electrode (TE).

[0125] For example, a Y-touch electrode (Y-TE) connected along the second direction can be connected by an electrode placed on the same layer as the touch electrode (TE).

[0126] An X-touch electrode (X-TE) connected along the first direction can be electrically connected by an X-touch electrode connection pattern (X-CL) placed on a different layer from the touch electrode (TE).

[0127] For example, the X-touch electrode (X-TE) and the Y-touch electrode (Y-TE) can be arranged using the first touch sensor metal (TSM1). The X-touch electrode connection pattern (X-CL) can be arranged using the second touch sensor metal (TSM2).

[0128] The second touch sensor metal (TSM2) can be placed on a different layer from the first touch sensor metal (TSM1).

[0129] The X-touch electrode (X-TE) and the X-touch electrode connection pattern (X-CL) can be electrically connected to each other through a contact hole (CH).

[0130] In this way, a touch electrode line (TEL) can be implemented using a layer on which a first touch sensor metal (TSM1) is disposed and a layer on which a second touch sensor metal (TSM2) is disposed.

[0131] The touch electrode (TE) can improve the sensitivity of touch sensing by increasing the boundary between the X-touch electrode (X-TE) and the Y-touch electrode (Y-TE) through a structure in which the touch electrode (TE) includes a body portion (TE-a) and a wing portion (TE-b). In addition, the load can be reduced by the structure of the touch electrode line (TEL) which is separated and arranged by sub-region (SAA) of the active area (AA), thereby improving the performance of touch sensing.

[0132] FIG. 7 is a diagram showing an example in which the touch sensor structure illustrated in FIG. 5 is implemented by the structure of the touch electrode (TE) illustrated in FIG. 6. FIG. 7 exemplarily illustrates a touch sensor structure implemented in the area indicated by 501 illustrated in FIG. 5.

[0133] Referring to FIGS. 6 and FIGS. 7, the active area (AA) can be divided into four sub-areas (SAA1, SAA2, SAA3, SAA4) by, for example, a first boundary (BL1) and a second boundary (BL2). Touch electrode lines (TEL) placed in each of the four sub-areas (SAA1, SAA2, SAA3, SAA4) can be placed separately from each other.

[0134] The touch electrode line (TEL) placed in each sub-region (SAA) may include a plurality of X-touch electrode lines (X-TEL) and a plurality of Y-touch electrode lines (Y-TEL).

[0135] Each of the plurality of X-touch electrode lines (X-TEL) may include a plurality of X-touch electrodes (X-TE). Each of the plurality of Y-touch electrode lines (Y-TEL) may include a plurality of Y-touch electrodes (Y-TE). The X-touch electrodes (X-TE) and Y-touch electrodes (Y-TE) may form a single sensing unit (SU).

[0136] A plurality of X-touch electrodes (X-TE) included in the X-touch electrode line (X-TEL) can be electrically connected by an X-touch electrode connection pattern (X-CL).

[0137] For example, a plurality of X-touch electrodes (X-TE) may be composed of a first touch sensor metal (TSM1). An X-touch electrode connection pattern (X-CL) may be composed of a second touch sensor metal (TSM2) disposed on a layer different from the layer on which the first touch sensor metal (TSM1) is disposed.

[0138] The X-touch electrode connection pattern (X-CL) is arranged along a first direction and can be electrically connected to an X-touch electrode (X-TE) through a contact hole (CH). A plurality of X-touch electrodes (X-TE) can be electrically connected along the first direction to form an X-touch electrode line (X-TEL).

[0139] The X-touch electrode connection pattern (X-CL) may be placed in an area that overlaps with, for example, the wing portion (X-TE-b) of the X-touch electrode (X-TE). The X-touch electrode connection pattern (X-CL) may not be placed in an area that overlaps 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 body portion (Y-TE-a) of the Y-touch electrode (Y-TE).

[0140] 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) may be larger 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).

[0141] 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) may be larger than the width Wa3 of the wing portion (Y-TE-b) of the Y-touch electrode (Y-TE).

[0142] Since the X-touch electrode connection pattern (X-CL) is positioned to overlap with the wider wing portion (X-TE-b) of the wing portion (X-TE-b) of the X-touch electrode (X-TE), the width or number of X-touch electrode connection patterns (X-CL) may be increased. The X-touch electrode (X-TE) can be electrically connected while reducing the resistance of the X-touch electrode connection pattern (X-CL).

[0143] In the area where the X-touch electrode connection pattern (X-CL) is not placed, 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, so the performance of touch sensing can be improved by maintaining a structure that increases the boundary between the X-touch electrode (X-TE) and the Y-touch electrode (Y-TE).

[0144] The X-touch electrode line (X-TEL) can be electrically connected to the X-touch electrode contact pad (X-CP) at the boundary between the active area (AA) and the non-active area (NA).

[0145] For example, an X-touch electrode (X-TE) made of a first touch sensor metal (TSM1) may be extended and disposed in a non-active area (NA). An X-touch electrode contact pad (X-CP) made of a second touch sensor metal (TSM2) may be disposed in an area 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) may be electrically connected through a contact hole (CH).

[0146] Alternatively, the X-touch electrode contact pad (X-CP) composed of an extended portion of the X-touch electrode (X-TE) placed in the non-active area (NA) and the second touch sensor metal (TSM2) may be combined to form the X-touch electrode contact pad (X-CP).

[0147] The X-touch electrode contact pad (X-CP) can be electrically connected to the X-touch routing wiring (X-TL) in the non-active area (NA). The X-touch electrode line (X-TEL) can be electrically connected to the X-touch routing wiring (X-TL) through the X-touch electrode contact pad (X-CP). The X-touch routing wiring (X-TL) can be composed of at least one of the first touch sensor metal (TSM1) and the second touch sensor metal (TSM2).

[0148] A plurality of Y-touch electrodes (Y-TE) included in the Y-touch electrode line (Y-TEL) can be directly connected to each other.

[0149] For example, a plurality of Y-touch electrodes (Y-TE) may be made of a first touch sensor metal (TSM1). A plurality of Y-touch electrodes (Y-TE) may be connected along a second direction to form a Y-touch electrode line (Y-TEL).

[0150] Among the plurality of Y-touch electrode lines (Y-TEL), the Y-touch electrode lines (Y-TEL) placed in the second sub-region (SAA2) and the fourth sub-region (SAA4) can be electrically connected to the Y-touch routing wiring (Y-TL) placed in the non-active area (NA) at the boundary between the active area (AA) and the non-active area (NA).

[0151] For example, the second Y-touch electrode line (Y-TEL-2) may be electrically connected to the second Y-touch routing wire (Y-TL-2) at the boundary between the active area (AA) and the non-active area (NA). The second Y-touch routing wire (Y-TL-2) may consist of at least one of the first touch sensor metal (TSM1) and the second touch sensor metal (TSM2).

[0152] Among the plurality of Y-touch electrode lines (Y-TEL), the Y-touch electrode lines (Y-TEL) placed in the first sub-region (SAA1) and the third sub-region (SAA3) can be electrically connected to the Y-touch routing wiring (Y-TL) in the active area (AA).

[0153] For example, the first Y-touch electrode line (Y-TEL-1) can be electrically connected to the first Y-touch routing wiring (Y-TL-1) in the active area (AA).

[0154] The first Y-touch routing wire (Y-TL-1) can be placed in a non-active area (NA) and a second sub-area (SAA2). The first Y-touch routing wire (Y-TL-2) can be electrically connected to the first Y-touch electrode line (Y-TEL-1) placed in the first sub-area (SAA1) by passing through the second sub-area (SAA2).

[0155] The first Y-touch routing wire (Y-TL-1) may be composed of, for example, a first touch sensor metal (TSM1). In some cases, a second touch sensor metal (TSM2) may be placed in an area overlapping with the first Y-touch routing wire (Y-TL-1) and electrically connected to the first Y-touch routing wire (Y-TL-1) through a contact hole (CH) to reduce the resistance of the first Y-touch routing wire (Y-TL-1).

[0156] As the first Y-touch routing wire (Y-TL-1) is placed in the second sub-region (SAA2), the second Y-touch electrode line (Y-TEL-2) placed in the second sub-region (SAA2) can be placed separately on both sides of the first Y-touch routing wire (Y-TL-1).

[0157] The two parts of the second Y-touch electrode line (Y-TEL-2) are connected to the second Y-touch routing wiring (Y-TL-2) at the boundary between the active area (AA) and the non-active area (NA) and can be electrically connected to each other.

[0158] Additionally, two parts of the second Y-touch electrode line (Y-TEL-2) can be electrically connected to each other by a second Y-touch electrode connection pattern (Y-CL-2) placed in the active area (AA).

[0159] The second Y-touch electrode connection pattern (Y-CL-2) can be formed, for example, by the second touch sensor metal (TSM2).

[0160] Two parts of the second Y-touch electrode line (Y-TEL-2) can be electrically connected to each other by at least one second Y-touch electrode connection pattern (Y-CL-2). For example, the second Y-touch electrode connection pattern (Y-CL-2) may be positioned in an area adjacent to the upper boundary of the sensing unit (SU) and an area adjacent to the lower boundary of the sensing unit (SU), and may be electrically connected to the second Y-touch electrode line (Y-TEL-2).

[0161] Since the two parts of the second Y-touch electrode line (Y-TEL-2), which are arranged separately from each other, are connected at multiple points by the second Y-touch electrode connection pattern (Y-CL-2), it is possible to prevent the load from increasing due to the separated structure of the second Y-touch electrode line (Y-TEL-2).

[0162] The first Y-touch routing wire (Y-TL-1) can be electrically connected to the first Y-touch electrode line (Y-TEL-1) in the first sub-region (SAA1) by passing through the second sub-region (SAA2).

[0163] Since the first Y-touch routing wire (Y-TL-1) extends through the second sub-region (SAA2) to the first sub-region (SAA1), a portion of the first Y-touch routing wire (Y-TL-1) can be placed at the first boundary (BL1).

[0164] The point where the first Y-touch routing wire (Y-TL-1) is connected to the first Y-touch electrode line (Y-TEL-1) may be located inside the first sub-region (SAA1). The point where the first Y-touch routing wire (Y-TL-1) is connected to the first Y-touch electrode line (Y-TEL-1) may not be located at the boundary between the first sub-region (SAA1) and the second sub-region (SAA2).

[0165] Since the first Y-touch routing 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) placed in the first sub-region (SAA1), the touch routing wiring (TL) can be placed without increasing the non-active area (NA) in a structure where the touch electrode line (TEL) is divided and placed in a plurality of sub-regions (SAA).

[0166] As the first Y-touch routing wiring (Y-TL-1) is placed in the second sub-region (SAA2), the area of ​​the second Y-touch electrode line (Y-TEL-2) is reduced, so the area of ​​the first Y-touch electrode line (Y-TEL-1) located in the area corresponding to the second Y-touch electrode line (Y-TEL-2) can be made equal to or similar to the area of ​​the second Y-touch electrode line (Y-TEL-2).

[0167] For example, the first Y-touch electrode line (Y-TEL-1) can be separated into two parts and arranged similarly to the second Y-touch electrode line (Y-TEL-2).

[0168] Two parts of the first Y-touch electrode line (Y-TEL-1) can be electrically connected to each other by the first Y-touch electrode connection pattern (Y-CL-1). An increase in load due to the separated structure of the first Y-touch electrode line (Y-TEL-1) can be prevented by the first Y-touch electrode connection pattern (Y-CL-1).

[0169] At least one first dummy electrode (DME1) can be placed between two parts of the first Y-touch electrode line (Y-TEL-1).

[0170] The first dummy electrode (DME1) can be positioned electrically isolated from the first Y-touch electrode line (Y-TEL-1) and the first Y-touch routing wiring (Y-TL-1).

[0171] The boundary between the first dummy electrode (DME1) and the first Y-touch routing wire (Y-TL-1) may differ 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 routing wire (Y-TL-1) may be located inside the first sub-region (SAA1).

[0172] The first dummy electrode (DME1) may be positioned in the second sub-region (SAA2) to correspond to a portion of the first Y-touch routing wiring (Y-TL-1) positioned in the first sub-region (SAA1). The width of the first dummy electrode (DME1) may be the same as or similar to the width of the first Y-touch routing wiring (Y-TL-1).

[0173] The area of ​​the first Y-touch electrode line (Y-TEL-1) placed in the first sub-region (SAA1) may be reduced in correspondence with the degree to which the area of ​​the second Y-touch electrode line (Y-TEL-2) is reduced due to the placement of the first Y-touch routing wiring (Y-TL-1) in the second sub-region (SAA2). As the area of ​​the first Y-touch electrode line (Y-TEL-1) is reduced, the electrode located in the remaining area may become the first dummy electrode (DME1).

[0174] A structure can be implemented in which the touch sensitivity of the touch electrode line (TEL) placed in the first sub-region (SAA1) and the touch sensitivity of the touch electrode line (TEL) placed in the second sub-region (SAA2) are maintained identically or similarly, and a part of the touch routing wiring (TL) is placed in the active area (AA).

[0175] Since the Y-touch routing wiring (Y-TL) is arranged along the second direction, a portion of the Y-touch routing wiring (Y-TL) can be located on the first boundary (BL1).

[0176] Since the second boundary (BL2), which is the boundary of the second direction, separates the first sub-area (SAA1) and the third sub-area (SAA3), and the second sub-area (SAA2) and the fourth sub-area (SAA4), the Y-touch routing wiring (Y-TL) arranged along the second direction may not be placed at the second boundary (BL2).

[0177] The first Y-touch routing wire (Y-TL-1) extends into the non-active area (NA) at the boundary between the active area (AA) and the non-active area (NA) and may intersect with the second Y-touch routing wire (Y-TL-2). In the area where the first Y-touch routing wire (Y-TL-1) and the second Y-touch routing wire (Y-TL-2) intersect, the two may be placed on different layers.

[0178] As such, according to the embodiments of the present disclosure, a touch sensor structure capable of reducing the load on the touch electrode line (TEL) can be provided by a structure in which the touch electrode line (TEL) is divided and arranged in a plurality of sub-regions (SAA). In addition, since a portion of the touch routing wiring (TL) is arranged in the active area (AA), a structure capable of improving touch sensing performance without increasing the non-active area (NA) due to the arrangement of the touch routing wiring (TL) can be provided.

[0179] The touch electrode (TE) constituting the touch electrode line (TEL) may be made of a transparent conductive material or an opaque metallic material, as in the example described above. If the touch electrode (TE) is an opaque metallic material, the touch electrode (TE) may have an open shape in which the area corresponding to the light-emitting area of ​​the subpixel (SP) is open so as not to degrade the image display performance of the display panel (110). The shape of the touch electrode (TE) including the open portion may vary depending on the type of subpixel (SP).

[0180] FIG. 8 is a diagram showing an example of the structure of an electrode constituting the touch sensor structure of a touch display device (100) according to embodiments of the present disclosure. FIG. 8 exemplarily shows the structure of an electrode constituting the touch sensor structure in the area indicated by 701 shown in FIG. 7.

[0181] FIG. 8 shows an example of a specific structure of an electrode constituting the body portion (TE-a) and wing portion (TE-b) of the aforementioned touch electrode (TE). The electrode shown in FIG. 8 can be cut in a certain direction to form the body portion (TE-a) and wing portion (TE-b) of the touch electrode (TE). In addition, the structure of the touch routing wiring (TL) electrically connected to the touch electrode (TE) can also be identical to the structure of the electrode shown in FIG. 8.

[0182] Referring to FIG. 8, an exemplary structure is shown in which a display signal line (DSL) for supplying a signal for driving a display to a display panel (110) is arranged and a touch electrode (TE) is arranged.

[0183] A display signal line (DSL) may include a plurality of first display signal lines (DSL1) arranged in a first direction and a plurality of second display signal lines (DSL2) arranged in a second direction.

[0184] The first display signal line (DSL1) may be, for example, a gate line (GL) or a light emission control line (EML). The second display signal line (DSL2) may be, for example, a data line (DL) or a line supplying at least one of a first driving voltage (VDD), a reference voltage (Vref), and a second driving voltage (VSS).

[0185] A touch electrode (TE) may include, for example, a first portion (TE_f) disposed along a first direction, a second portion (TE_s) disposed along a second direction, and a third portion (TE_t) disposed along a third direction different from the first and second directions.

[0186] The electrode constituting the touch electrode (TE) may be cut in a first direction, such as the portion indicated by 801, or cut in a second direction, such as the portion indicated by 802, to form an X-touch electrode (TE) or a Y-touch electrode (Y-TE).

[0187] An electrode comprising a first part (TE_f), a second part (TE_s), and a third part (TE_t) is cut in a first direction or a second direction so that the aforementioned touch electrode (TE) can form a body part (TE-a) or a wing part (TE-b).

[0188] The touch routing wiring (TL) may also include at least a portion of a first part (TE_f), a second part (TE_s), and a third part (TE_t), similar to the touch electrode (TE), and may be cut in a first direction or a second direction.

[0189] As the touch electrode (TE) is formed to include a first portion (TE_f), a second portion (TE_s), and a third portion (TE_t) arranged in different directions, the touch electrode (TE) may include a plurality of open portions. The shape of the open portions of the touch electrode (TE) may vary and may be determined according to the shape of the light-emitting region of the subpixel (SP) arranged on the display panel (110).

[0190] FIG. 9 is a diagram illustrating an example of the arrangement relationship between the electrode constituting the touch sensor structure and the components included in the subpixel (SP) in a touch display device (100) according to embodiments of the present disclosure. FIG. 9 exemplarily illustrates the structure of the electrode constituting the touch sensor structure in the area indicated by 702 shown in FIG. 7. FIG. 10 is a diagram illustrating an example of the cross-sectional structure of the AA' portion shown in FIG. 9.

[0191] Referring to FIGS. 9 and 10, a light-emitting region of a light-emitting element (ED) placed in a subpixel (SP) may be located in an area that overlaps with an open portion of a touch electrode (TE).

[0192] The light-emitting region of the light-emitting element (ED) may refer to a region in which a light-emitting layer (EL) and a second electrode (E2) are superimposed and arranged on the first electrode (E1) of the light-emitting element (ED). Additionally, the light-emitting region of the light-emitting element (ED) may refer to a region in which the first electrode (E1) of the light-emitting element (ED) is arranged but a bank (BNK) is not arranged.

[0193] FIG. 9 shows an example of a configuration in which light-emitting regions of a red subpixel (SP_r), a green subpixel (SP_g), and a blue subpixel (SP_b) are arranged, but the shape and size of the subpixel (SP) constituting one pixel may vary depending on the display panel (110).

[0194] The first part (TE_f), the second part (TE_s), and the third part (TE_t) of the touch electrode (TE) can be positioned to avoid the light-emitting area of ​​the subpixel (SP).

[0195] The touch electrode (TE) is positioned between the light-emitting regions of adjacent subpixels (SP) to prevent or minimize the touch electrode (TE) from affecting the image shown depending on the viewing angle.

[0196] As the touch electrode (TE) is positioned to avoid the light-emitting area of ​​the subpixel (SP), it can be positioned to overlap with a specific structure located in the subpixel (SP).

[0197] For example, a first portion (TE_f) of a touch electrode (TE) arranged along a first direction may be arranged to overlap with at least a portion of a contact hole (CH) for electrical connection between a first electrode (E1) of a light-emitting element (ED) and a thin-film transistor (TFT) in a subpixel (SP).

[0198] of Figs. 9 and 10<EX 1> Referring to the above, a multi-buffer layer (MB) may be disposed 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 multi-buffer layer (MB) may have a structure in which a plurality of insulating layers are stacked.

[0199] A light-shielding metal layer (BSM) may be placed on a multi-buffer layer (MB). The light-shielding metal layer (BSM) may form a display signal line (DSL) or form a part of a storage capacitor (Cstg) placed in a subpixel (SP).

[0200] An active buffer layer (AB) can be placed on a light-blocking metal layer (BSM).

[0201] An active layer (ACT) can be disposed on an active buffer layer (AB). The active layer (ACT) can be made of a semiconductor material.

[0202] The active layer (ACT) can form the channel of a thin-film transistor (TFT). Additionally, the active layer (ACT) can be conductive to form a part of a display signal line (DSL) or a storage capacitor (Cstg).

[0203] A gate insulation layer (GI) can be placed on the active layer (ACT).

[0204] A gate metal layer (GAT) can be disposed on a gate insulating layer (GI). The gate metal layer (GAT) may form the gate electrode of a thin-film transistor (TFT) or form a display signal line (DSL), etc.

[0205] A first interlayer insulating layer (ILD1) can be placed on a gate metal layer (GAT).

[0206] A display auxiliary electrode layer (TM) may be disposed on the first interlayer insulating layer (ILD1). The display auxiliary electrode layer (TM) may be used in various ways to form a part of a display signal line (DSL) or a storage capacitor (Cstg), etc.

[0207] A second interlayer insulation layer (ILD2) can be placed on the display auxiliary electrode layer (TM).

[0208] A source-drain metal layer (SD) may be disposed on the second interlayer insulating layer (ILD2). The source-drain metal layer (SD) may form the source electrode and drain electrode of a thin-film transistor (TFT), or form a display signal line (DSL), etc.

[0209] A planarization layer (PLN) can be placed on a source drain metal layer (SD).

[0210] A first electrode (E1) of a light-emitting element (ED) may be placed on a planarization layer (PLN). The first electrode (E1) of the light-emitting element (ED) may 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) may, for example, be a driving transistor (DRT), or a transistor that controls the light emission timing of the light-emitting element (ED), as shown in the example of FIG. 2.

[0211] A bank (BNK) can be placed on the planarization layer (PLN) and the first electrode (E1) of the light-emitting element (ED). The bank (BNK) can be placed to cover the edge portion of the first electrode (E1) of the light-emitting element (ED).

[0212] A portion of the first electrode (E1) exposed by the bank (BNK) and a light-emitting layer (EL) of the light-emitting element (ED) and a second electrode (E2) may be disposed on the bank (BNK). A portion of the first electrode (E1) exposed by the bank (BNK) may correspond to a light-emitting region.

[0213] An encapsulation layer (ENCAP) may be disposed on the second electrode (E2) of the light-emitting element (ED). The encapsulation layer (ENCAP) may include a plurality of layers. The encapsulation layer (ENCAP) may include at least one inorganic layer and at least one organic layer.

[0214] 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).

[0215] The inorganic encapsulation layer (PAS1, PAS2) may be made of an inorganic insulating material capable of low-temperature deposition, such as silicon nitride (SiNx), silicon oxide (SiOx), silicon nitride oxide (SiON), or aluminum oxide (Al2O3), for example. The organic encapsulation layer (PCL) may be made of an organic insulating material, such as acrylic resin, epoxy resin, polyimide, polyethylene, or silicon oxycarbon (SiOC), for example.

[0216] The encapsulation layer (ENCAP) seals the light-emitting element (ED) and can protect the light-emitting element (ED) from external moisture and air.

[0217] A touch sensor structure for touch sensing can be implemented on the encapsulation layer (ENCAP).

[0218] For example, a touch buffer layer (TBUF) may be disposed on an encapsulation layer (ENCAP). The touch buffer layer (TBUF) may be an inorganic layer. In some cases, the touch buffer layer (TBUF) may not be disposed, but the touch buffer layer (TBUF) may be disposed to facilitate the placement of the touch sensor metal (TSM) on the encapsulation layer (ECNAP).

[0219] A touch insulating layer (TILD) can be placed on a touch buffer layer (TBUF).

[0220] Although not illustrated in the example of FIG. 10, a second touch sensor metal (TSM2) forming a touch electrode connection pattern (CL), etc., may be disposed between the touch buffer layer (TBUF) and the touch insulation layer (TILD).

[0221] The touch insulating layer (TILD) may be an inorganic layer. Alternatively, the touch insulating layer (TILD) may be an organic layer.

[0222] If the touch insulating layer (TILD) is an organic layer, the thickness of the touch insulating layer (TILD) may be greater than the thickness of the touch buffer layer (TBUF).

[0223] In addition, when the touch insulating layer (TILD) is an organic layer, Fig. 10<EX 2> As shown, a touch insulation buffer layer (TIBUF) may be further disposed between the touch insulation layer (TILD) and the touch buffer layer (TBUF). In this way, two or more buffer layers may be disposed between the encapsulation layer (ENCAP) and the touch insulation layer (TILD).

[0224] A touch insulation buffer layer (TIBUF) may be disposed between a touch insulation layer (TILD) and a second touch sensor metal (TSM2). The touch insulation buffer layer (TIBUF) may be an inorganic layer. The touch insulation buffer layer (TIBUF) may be made of the same material as the touch buffer layer (TBUF).

[0225] At least a portion of the touch insulation layer (TILD) can be positioned in contact with the upper surface of the touch insulation buffer layer (TIBUF).

[0226] Since a touch insulation buffer layer (TIBUF) made of an inorganic layer is placed between the touch insulation layer (TILD) and the second touch sensor metal (TSM2), the adhesion of the touch insulation layer (TILD), which is an organic layer, can be made easier.

[0227] The thickness of the touch insulation buffer layer (TIBUF) may be smaller than the thickness of the touch insulation layer (TILD) and may be similar to the thickness of the touch buffer layer (TBUF).

[0228] A touch electrode (TE) may be disposed on a touch insulating layer (TILD). A first touch sensor metal (TSM1) may be disposed on the touch insulating layer (TILD) and may form a touch electrode (TE). Additionally, the first touch sensor metal (TSM1) may be disposed on the touch insulating layer (TILD) and may form a touch routing wire (TL).

[0229] FIG. 10 exemplarily shows the cross-sectional structure of a portion in which a first portion (TE_f) of the touch electrode (TE) illustrated in FIG. 9 is disposed. The first portion (TE_f) of the touch electrode (TE) may be disposed on a touch insulating layer (TILD).

[0230] A first portion (TE_f) of the touch electrode (TE) may be positioned to avoid the light-emitting region of the light-emitting element (ED). A first portion (TE_f) of the touch electrode (TE) may be positioned in an area that overlaps with at least a portion of the contact hole (CH) for electrical connection between the first electrode (E1) of the light-emitting element (ED) and the thin-film transistor (TFT).

[0231] A first portion (TE_f) of the touch electrode (TE) may be positioned in a first direction and positioned between adjacent display signal lines (DSL), or may be positioned overlapping a portion of the display signal lines (DSL).

[0232] Since the touch electrode (TE) is positioned in an area overlapping with the contact hole (CH) and is arranged to avoid the light-emitting area of ​​the light-emitting element (ED), the touch sensor structure can be implemented without impeding the image display function of the display panel (110).

[0233] A touch protection layer (TPAS) is disposed on a touch electrode (TE) made of a first touch sensor metal (TSM1) and can protect the touch electrode (TE).

[0234] In this way, each part of the electrode constituting the touch electrode (TE) or touch routing wiring (TL) is placed in an area that does not overlap with the light-emitting area of ​​the light-emitting element (ED) placed in the subpixel (SP), and is placed in a position that minimizes interference with the viewing angle of the light-emitting area, so that the image display performance of the display panel (110) is prevented or minimized and the touch sensor structure can be implemented.

[0235] Hereinafter, a specific example is described in which the touch sensor structure illustrated in FIG. 5 is implemented by a touch electrode (TE) having the aforementioned electrode structure and a touch routing wiring (TL). Additionally, as previously described, the touch electrode (TE) may have various structures other than the aforementioned electrode structure, and the embodiments of the present disclosure can be applied to all various electrode structures.

[0236] FIGS. 11 to 15 are drawings showing specific examples in which a touch sensor structure of a touch display device (100) according to embodiments of the present disclosure is implemented in an active area (AA) of a display panel (110).

[0237] FIG. 11 shows an example of the structure of a touch electrode (TE) placed in a sub-region (SAA) divided from an active area (AA) of a display panel (110). FIG. 12 shows an example of the structure of a touch routing wire (TL) and a dummy electrode (DME) placed in an active area (AA). FIG. 13 shows an example of the boundary between the touch routing wire (TL) and the dummy electrode (DME) in an active area (AA).

[0238] FIG. 14 shows another example of the structure of touch routing wiring (TL) and dummy electrode (DME) placed in an active area (AA). FIG. 15 shows yet another example of touch routing wiring (TL) placed in an active area (AA).

[0239] Referring to FIG. 11, the active area (AA) of the display panel (110) may be divided into a plurality of sub-areas (SAA) by a first boundary (BL1) and a second boundary (BL2). Touch electrode lines (TEL) placed in each of the plurality of sub-areas (SAA) may be placed separately from each other. In FIG. 11, the schematic diagram showing the overall structure of the display panel (110) shows only the part made of the first touch sensor metal (TSM1) for convenience of illustration.

[0240] A portion of the touch electrode lines (TEL) placed in multiple sub-regions (SAA) can be electrically connected to touch routing wiring (TL) placed in the non-active area (NA) at the boundary between the active area (AA) and the non-active area (NA).

[0241] Another portion of the touch electrode lines (TEL) placed in multiple sub-regions (SAA) can be electrically connected in the active area (AA) with the touch routing wiring (TL) placed from the non-active area (NA) through the active area (AA).

[0242] A touch electrode (TE) constituting a touch electrode line (TEL) may include at least one body portion (TE-a) and a plurality of wing portions (TE-b).

[0243] The touch electrode line (TEL) and the touch routing wiring (TL) can be implemented as the electrode, comprising a first part (TE_f), a second part (TE_s), and a third part (TE_t), is cut along a certain direction.

[0244] For example, the electrode may be cut at the boundary between the X-touch electrode line (X-TEL) and the Y-touch electrode line (Y-TEL). The electrode may also be cut at the boundary between the touch routing wiring (TL), the dummy electrode (DME), and the touch electrode line (TEL). Additionally, the electrode may be cut at the boundary of the sub-region (SAA).

[0245] Referring to FIG. 11, the electrode can be cut along the first direction at the first boundary (BL1). The electrode can be cut along the second direction at the second boundary (BL2).

[0246] Electrodes are cut at the first boundary (BL1) and the second boundary (BL2), and touch electrode lines (TEL) placed in 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 distinguished.

[0247] The X-touch electrode line (X-TEL) and Y-touch electrode line (Y-TEL) placed in each sub-region (SAA) can also be implemented by cutting the electrodes in the first direction or the second direction.

[0248] The spacing between touch electrodes (TE) at the boundary of the sub-region (SAA) may be the same or similar as the spacing between touch electrodes (TE) inside the sub-region (SAA). By making the spacing between the cut electrodes substantially the same, it is possible to prevent a difference in visibility depending on the area of ​​the display panel (110).

[0249] Touch routing wiring (TL) and dummy electrodes (DME) can also be implemented by cutting the electrodes in a manner similar to the touch electrode line (TEL).

[0250] Referring to FIG. 12, the portion indicated by 1201 represents an example of an area in which a first dummy electrode (DME1) is placed in a first sub-region (SAA1). The portion indicated by 1202 represents an example of an area in which a first Y-touch routing wire (Y-TL-1) is placed in a second sub-region (SAA2).

[0251] The electrode placed in the second sub-region (SAA2) is cut, and the first Y-touch routing wiring (Y-TL-1) can be placed.

[0252] The first Y-touch routing wire (Y-TL-1) can be located between the second Y-touch electrode line (Y-TEL-2) in the second sub-region (SAA2).

[0253] The electrode placed in the first sub-region (SAA1) is cut, and at least one first dummy electrode (DME1) may be placed. The at least one first dummy electrode (DME1) may be located in an area corresponding to the area in the first sub-region (SAA1) where the first Y-touch routing wiring (Y-TL-1) is placed in the second sub-region (SAA2).

[0254] The first dummy electrode (DME1) may be located between the first Y-touch electrode line (Y-TEL-1) in the first sub-region (SAA1). To prevent defects from occurring even if a portion of the first dummy electrode (DME1) is short-circuited, the first dummy electrode (DME1) may be separated and arranged into multiple parts as shown in the example illustrated in FIG. 12.

[0255] A first dummy electrode (DME1) electrically isolated from the first Y-touch electrode line (Y-TEL-1) may be located between the first Y-touch electrode line (Y-TEL-1) of the first sub-region (SAA1). A first Y-touch routing wire (Y-TL-1) electrically isolated from the second Y-touch electrode line (Y-TEL-2) may be located between the second Y-touch electrode line (Y-TEL-2) of the second sub-region (SAA2).

[0256] The first dummy electrode (DME1) and the first Y-touch routing wire (Y-TL-1) may be arranged to correspond to each other. The width of the area where the first dummy electrode (DME1) is arranged may be the same as or similar to the width of the area where the first Y-touch routing wire (Y-TL-1) is arranged. That is, the lower touch sensor part has an area through which the first Y-touch routing wire (Y-TL-1) of the upper touch sensor part passes, and the upper touch sensor part may have the first dummy electrode (DME1) provided in an area corresponding to the first Y-touch routing wire (Y-TL-1) arranged in the lower touch sensor part.

[0257] In the second sub-region (SAA2), the electrode portion between the first Y-touch routing wiring (Y-TL-1) and the second Y-touch electrode line (Y-TEL-2) is cut, and at least one second dummy electrode (DME2) can be placed.

[0258] The second dummy electrode (DME2) can be positioned electrically isolated from the first Y-touch routing wiring (Y-TL-1) and the second Y-touch electrode line (Y-TEL-2).

[0259] A first dummy electrode (DME1) may be located in a first sub-region (SAA1) corresponding to the area in the second sub-region (SAA2) where the second dummy electrode (DME2) is placed. A portion of the first dummy electrode (DME1) may be positioned to correspond to the second dummy electrode (DME2).

[0260] A second dummy electrode (DME2) may be placed to prevent or reduce the decrease in visibility caused by the placement of the touch electrode line (TEL). Alternatively, the second dummy electrode (DME2) may be placed to prevent a short circuit between the first Y-touch routing wiring (Y-TL-1) and the second Y-touch electrode line (Y-TEL-2).

[0261] A first dummy electrode (DME1) may be disposed in corresponding areas in the first sub-region (SAA1) and the second sub-region (SAA2), or a first Y-touch routing wire (Y-TL-1) and a second dummy electrode (DME2) may be disposed. The area of ​​the region where the Y-touch electrode line (Y-TEL) is disposed in each of the first sub-region (SAA1) and the second sub-region (SAA2) may be the same or similar. The spacing between the two parts of the first Y-touch electrode line (Y-TEL-1) disposed separately on both sides of the first dummy electrode (DME1) in the first sub-region (SAA1) may be the same or similar to the spacing between the two parts of the second Y-touch electrode line (Y-TEL-2) disposed separately on both sides of the first Y-touch routing wire (Y-TL-1) in the second sub-region (SAA2).

[0262] The first dummy electrode (DME1) and the second dummy electrode (DME2) may be positioned with electrodes cut similarly to a touch electrode line (TEL) or a touch routing wire (TL). The dummy electrode (DME) may be positioned with electrodes cut in a first direction or a second direction similarly to a touch electrode line (TEL), etc.

[0263] Alternatively, at least one of the first dummy electrode (DME1) and the second dummy electrode (DME2) may be positioned such that the electrode is cut in a direction different from the direction in which the touch electrode line (TEL) and the touch routing wiring (TL) are cut.

[0264] For example, the touch electrode line (TEL) and the touch routing wiring (TL) may be positioned such that the electrodes are cut in a first direction or a second direction, as in the example described above. On the other hand, the first dummy electrode (DME1) and the second dummy electrode (DME2) may be positioned such that the electrodes are cut along a third direction different from the first and second directions. Both sides of the first dummy electrode (DME1) and the second dummy electrode (DME2) may be in a form cut along a third direction different from the first and second directions.

[0265] For example, the dummy electrode (DME) may be positioned by cutting the electrode diagonally at the boundary between the dummy electrode (DME) and the touch electrode line (TEL) or touch routing wiring (TL). Both sides of the dummy electrode (DME) may be cut along the diagonal direction. If the boundary of the dummy electrode (DME) is cut diagonally, the area of ​​the end of the dummy electrode (DME) may be larger than the area of ​​the end of the touch electrode line (TEL) or the end of the touch routing wiring (TL).

[0266] The boundary between the touch electrode line (TEL) and the touch electrode line (TEL), and the boundary between the touch electrode line (TEL) and the touch routing wiring (TEL) may be in the form where the electrode is cut along the first direction or the second direction.

[0267] The boundary between the dummy electrode (DME) and the touch electrode line (TEL), the boundary between the dummy electrode (DME) and the touch routing wiring (TL), and the boundary between the dummy electrodes (DME) may be cut along a third direction (e.g., a diagonal direction) different from the first and second directions.

[0268] At the boundary of the dummy electrode (DME), the dummy electrode (DME) may have a shape in which the electrode is cut diagonally. At the boundary between the dummy electrode (DME) and the touch electrode line (TEL) or touch routing wiring (TL), the touch electrode line (TEL) or touch routing wiring (TL) may include a protrusion that protrudes toward the dummy electrode (DME) and has a shape in which it is cut diagonally.

[0269] By making the cutting direction of the boundary of the dummy electrode (DME) different from the cutting direction of the boundary of the touch electrode line (TEL) or touch routing wiring (TL), the repair process can be facilitated during the inspection process of the touch sensor structure.

[0270] For example, if there is a short circuit between electrodes at a boundary where the electrodes are cut in the first or second direction, since the area is a boundary between touch electrode lines (TEL) or a boundary between a touch electrode line (TEL) and a touch routing wire (TL), a repair process is required to disconnect the short circuit.

[0271] If there is a short circuit between electrodes at the boundary where the electrodes are cut diagonally, since at least one of the short-circuited electrodes is a dummy electrode (DME), the structure of the touch sensor may not be affected even without disconnecting the short-circuited part. Therefore, the inspection process can be terminated without performing a repair process. In this case, the dummy electrode (DME) can be placed in the active area (AA) in a structure connected to the touch electrode line (TEL) or the touch routing wiring (TL).

[0272] In this way, the placement of the dummy electrode (DME) can make the area of ​​the touch electrode line (TEL) uniform and improve visibility. In addition, by making the cutting direction at the boundary of the dummy electrode (DME) different from the cutting direction at the boundary of the touch electrode line (TEL), the efficiency of the inspection process can be increased.

[0273] The above example describes only cases where the dummy electrode (DME) is placed in an area corresponding to the touch routing line (TL) or around the touch routing line (TL); however, depending on the case, the dummy electrode (DME) may be placed inside the touch electrode line (TEL) or in the boundary area between touch electrode lines (TEL). Even in such cases, the dummy electrode (DME) may be uniformly positioned for each area.

[0274] The boundary between the first dummy electrode (DME1) placed in the first sub-region (SAA1) and the first Y-touch routing wiring (Y-TL-1) electrically connected to the first Y-touch electrode line (Y-TEL-1) of the first sub-region (SAA1) can also be cut in a similar manner.

[0275] Referring to FIG. 13, the part indicated by 1301 represents the boundary between the first Y-touch routing wire (Y-TL-1) and the first dummy electrode (DME1).

[0276] The boundary between the first Y-touch routing wire (Y-TL-1) and the first dummy electrode (DME1) may be in the form where the electrode is cut diagonally.

[0277] Alternatively, depending on the case, the boundary between the first Y-touch routing wire (Y-TL-1) and the first dummy electrode (DME1) may be cut along the first direction. Since the first dummy electrode (DME1) is separated and arranged in multiple parts, only the boundary of the first dummy electrode (DME1) closest to the first Y-touch routing wire (Y-TL-1) may not be cut diagonally.

[0278] Since the first Y-touch routing wire (Y-TL-1) is electrically connected to the first Y-touch electrode line (Y-TEL-1) placed in the first sub-region (SAA1), the boundary between the first Y-touch routing wire (Y-TL-1) and the first dummy electrode (DME1) may differ from the boundary between the first sub-region (SAA1) and the second sub-region (SAA2). For example, the boundary between the first Y-touch routing wire (Y-TL-1) and the first dummy electrode (DME1) may be located inside the first sub-region (SAA1).

[0279] The first Y-touch routing wire (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 routing wire (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.

[0280] Alternatively, the first Y-touch routing wiring (Y-TL-1) may be electrically connected to the first Y-touch electrode line (Y-TEL-1) by a first Y-touch electrode connection pattern (Y-CL-1) made of the second touch sensor metal (TSM2).

[0281] The first Y-touch routing wiring (Y-TL-1) and the first Y-touch electrode line (Y-TEL-1) can be electrically connected to each other by a first Y-touch electrode connection pattern (Y-CL-1) located on the upper side of the first boundary (BL1). Two parts of the second Y-touch electrode line (Y-TEL-2) placed in the second sub-region (SAA2) can be electrically connected to each other by a second Y-touch electrode connection pattern (Y-CL-2) located on the lower side of the first boundary (BL1).

[0282] When the first Y-touch routing 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 routing wiring (Y-TL-1) and the first Y-touch electrode line (Y-TEL-1) may be connected to each other or separated in the layer where the first touch sensor metal (TSM1) is disposed.

[0283] When the first Y-touch routing wire (Y-TL-1) and the first Y-touch electrode line (Y-TEL-1) are separated and arranged in the layer where the first touch sensor metal (TSM1) is placed, the boundary between the first Y-touch routing wire (Y-TL-1) and the first Y-touch electrode line (Y-TEL-1) may be in the form of a diagonal line. Since the first Y-touch routing wire (Y-TL-1) and the first Y-touch electrode line (Y-TEL-1), which are made of the first touch sensor metal (TSM1), do not require a repair process for disconnection even if they are short-circuited to each other, the boundary between the first Y-touch routing wire (Y-TL-1) and the first Y-touch electrode line (Y-TEL-1), which are made of the first touch sensor metal (TSM1), may be cut in a diagonal direction during the process of cutting the dummy electrode (DME) for the convenience of the process.

[0284] In this way, the first Y-touch routing wire (Y-TL-1) and the first Y-touch electrode line (Y-TEL-1) can be electrically connected to each other in various forms in the first sub-region (SAA1). In order to reduce the load of the first Y-touch routing wire (Y-TL-1) placed in the active area (AA), a pattern for resistance reduction may be further disposed at the bottom of the first Y-touch routing wire (Y-TL-1).

[0285] Referring to FIG. 14, the portion indicated by 1401 represents an example of a region in which a first dummy electrode (DME1) is placed in a first sub-region (SAA1). The portion indicated by 1402 represents an example of a region in which a first Y-touch routing wire (Y-TL-1) and a second dummy electrode (DME2) are placed in a second sub-region (SAA2). The lower touch sensor portion has a region through which the first Y-touch routing wire (Y-TL-1) of the upper touch sensor portion passes, and the upper touch sensor portion may have a first dummy electrode (DME1) provided in a region corresponding to the first Y-touch routing wire (Y-TL-1) placed in the lower touch sensor portion.

[0286] Referring to the part indicated by 1402, at least one Y-auxiliary routing pattern (Y-TLP) made of a second touch sensor metal (TSM2) may be placed in an area overlapping with a first Y-touch routing wiring (Y-TL-1) made of a first touch sensor metal (TSM1) in a second sub-area (SAA2).

[0287] The Y-auxiliary routing pattern (Y-TLP) may be placed in an area other than the area where the X-touch electrode connection pattern (X-CL) or the Y-touch electrode connection pattern (Y-CL), which are made of the second touch sensor metal (TSM2), are placed. The Y-auxiliary routing pattern (Y-TLP) may be placed separately from the X-touch electrode connection pattern (X-CL) and the Y-touch electrode connection pattern (Y-CL).

[0288] The Y-auxiliary routing pattern (Y-TLP) can be positioned to overlap with at least a portion of the first Y-touch routing wiring (Y-TL-1).

[0289] The Y-auxiliary routing pattern (Y-TLP) can be electrically connected to the first Y-touch routing wiring (Y-TL-1) at at least one point through a contact hole (CH).

[0290] Since the Y-auxiliary routing pattern (Y-TLP) is electrically connected to the first Y-touch routing wiring (Y-TL-1), the resistance of the first Y-touch routing wiring (Y-TL-1) can be reduced. The load of the first Y-touch routing wiring (Y-TL-1) placed in the active area (AA) can be reduced.

[0291] Referring to the part indicated by 1401, at least one dummy pattern (DMP) made of a second touch sensor metal (TSM2) may be placed in an area overlapping with the first dummy electrode (DME1) in the first sub-region (SAA1).

[0292] The dummy pattern (DMP) may have a shape identical or similar to that of the first dummy electrode (DME1). The boundary of the dummy pattern (DMP) may be in the form of a diagonal line, like the boundary of the first dummy electrode (DME1). The dummy pattern (DMP) may be electrically connected to the first dummy electrode (DME1) or insulated from the first dummy electrode (DME1). The dummy pattern (DMP) and the first dummy electrode (DME1) may be floating.

[0293] Since a Y-auxiliary routing pattern (Y-TLP) is placed in the area overlapping with the first Y-touch routing wiring (Y-TL-1) in the second sub-area (SAA2), a dummy pattern (DMP) is placed in the area overlapping with the first dummy electrode (DME1) in the first sub-area (SAA1), thereby preventing a difference in visibility according to the sub-area (SAA).

[0294] In addition, the width of the Y-auxiliary routing pattern (Y-TLP) or dummy pattern (DMP) can be adjusted within a range that does not affect visibility.

[0295] Referring to FIG. 15, an example of an area in which a first Y-touch routing wire (Y-TL-1) and a Y-auxiliary routing pattern (Y-TLP) are placed in a second sub-area (SAA2) is shown.

[0296] A Y-auxiliary routing pattern (Y-TLP) can be placed in an area overlapping with the first Y-touch routing wiring (Y-TL-1).

[0297] The Y-auxiliary routing pattern (Y-TLP) can be electrically connected to the first Y-touch routing wiring (Y-TL-1) through a contact hole (CH).

[0298] The width of the Y-auxiliary routing pattern (Y-TLP) may differ from the width of the first Y-touch routing wire (Y-TL-1).

[0299] For example, the width Wb2 of the Y-auxiliary routing pattern (Y-TLP) may be larger than the width Wb1 of the first Y-touch routing wire (Y-TL-1).

[0300] Additionally, since the first Y-touch routing wire (Y-TL-1) and the Y-auxiliary routing pattern (Y-TLP) are arranged to avoid the light-emitting region of the light-emitting element (ED), each of the first Y-touch routing wire (Y-TL-1) and the Y-auxiliary routing pattern (Y-TLP) may include an opening corresponding to the light-emitting region of the light-emitting element (ED). Since the width of the Y-auxiliary routing pattern (Y-TLP) is greater than the width of the first Y-touch routing wire (Y-TL-1), the size of the opening included in the first Y-touch routing wire (Y-TL-1) may be larger than the size of the opening included in the Y-auxiliary routing pattern (Y-TLP) and corresponding to the opening included in the first Y-touch routing wire (Y-TL-1).

[0301] Since the Y-auxiliary routing pattern (Y-TLP) is located below the first Y-touch routing wire (Y-TL-1), it can be located further from the outside of the display panel (110) than the first Y-touch routing wire (Y-TL-1). Even if the width of the Y-auxiliary routing pattern (Y-TLP) is greater than the width of the first Y-touch routing wire (Y-TL-1), the degree of reduced visibility from the outside may be smaller compared to the case where the width of the first Y-touch routing wire (Y-TL-1) is greater than the width of the Y-auxiliary routing pattern (Y-TLP).

[0302] Since the width of the Y-auxiliary routing pattern (Y-TLP) is increased while preventing or minimizing the degradation of visibility, the resistance of the first Y-touch routing wiring (Y-TL-1) electrically connected to the Y-auxiliary routing pattern (Y-TLP) can be further reduced.

[0303] In addition, in this case, the width of the dummy pattern (DMP) overlapping with the first dummy electrode (DME1) placed in the first sub-region (SAA1) may be greater than the width of the first dummy electrode (DME1). By increasing the width of the dummy pattern (DMP) located below the first dummy electrode (DME1), it is possible to prevent or reduce the occurrence of a difference in visibility between the first sub-region (SAA1) and the second sub-region (SAA2).

[0304] In this way, by placing an auxiliary routing pattern (TLP) in an area that overlaps with the touch routing wiring (TL) placed in the active area (AA), the load on the touch routing wiring (TL) can be reduced and the touch sensing performance improved without impairing image display performance.

[0305] Thus, according to the embodiments of the present disclosure, by implementing a touch sensor structure using a first touch sensor metal (TSM1) and a second touch sensor metal (TSM2) in an active area (AA), a touch sensor structure with improved touch sensing performance and minimized impact on image display performance can be provided.

[0306] FIG. 16 is a drawing showing a specific example in which a touch sensor structure of a touch display device (100) according to embodiments of the present disclosure is implemented in the peripheral area of ​​the boundary between an active area (AA) and a non-active area (NA) of a display panel (110). FIG. 16 exemplarily shows a specific structure in which a second touch sensor metal (TSM2) is disposed in the area indicated by 703 shown in FIG. 7.

[0307] Referring to FIG. 16, an example of the structure of a second touch sensor metal (TSM2) is shown, which is placed in an area containing one sensing unit (SU) at one side boundary of an active area (AA).

[0308] An X-touch electrode connection pattern (X-CL) for connecting an X-touch electrode (X-TE) may be disposed in an active area (AA). The X-touch electrode connection pattern (X-CL) may be connected to an X-touch electrode contact pad (X-CP) located outside the active area (AA). The X-touch electrode contact pad (X-CP) may be connected to an X-touch routing wire (X-TL).

[0309] At least one Y-touch electrode connection pattern (Y-CL) made of a second touch sensor metal (TSM2) can be disposed in an area adjacent to the upper boundary and lower boundary of the sensing unit (SU).

[0310] The Y-touch electrode connection pattern (Y-CL) can electrically connect two parts of a Y-touch electrode line (Y-TEL) separated by a Y-touch routing wire (Y-TL) or a first dummy electrode (DME1).

[0311] The Y-touch electrode connection pattern (Y-CL) may be placed in two or more locations within a single sensing unit (SU) or in various locations. The Y-touch electrode connection pattern (Y-CL) connects the separated Y-touch electrodes (Y-TE) at the upper and lower sides of each sensing unit (SU), thereby allowing the Y-touch electrodes (Y-TE) to have a state similar to a structure in which they are not separated.

[0312] Since the Y-touch electrode connection pattern (Y-CL) is located at the upper and lower boundaries of the sensing unit (SU), the separated point of the X-touch electrode contact pad (X-CP) connected to the X-touch electrode line (X-TEL) can be located between adjacent Y-touch electrode connection patterns (Y-CL).

[0313] For example, as indicated by 1601, the boundary between the X-touch electrode contact pads (X-CP) may be the same as the boundary of the sensing unit (SU).

[0314] Since Y-touch electrode connection patterns (Y-CL) are placed 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).

[0315] A Y-auxiliary routing pattern (Y-TLP) may be placed in an area other than the area where the X-touch electrode connection pattern (X-CL) and the Y-touch electrode connection pattern (Y-CL) are placed in the layer where the second touch sensor metal (TSM2) is placed.

[0316] The Y-auxiliary routing pattern (Y-TLP) can be positioned separately from the X-touch electrode connection pattern (X-CL) and the Y-touch electrode connection pattern (Y-CL). The Y-auxiliary routing pattern (Y-TLP) is electrically connected to the overlapping Y-touch routing wiring (Y-TL) and can reduce the resistance of the Y-touch routing wiring (Y-TL) positioned in the active area (AA).

[0317] A second touch sensor metal (TSM2) placed in an area overlapping with the first dummy electrode (DME1) is placed in a shape similar to the first dummy electrode (DME1) and can form a dummy pattern (DMP).

[0318] A dummy pattern (DMP) may be placed in an area other than the area where the X-touch electrode connection pattern (X-CL), Y-touch electrode connection pattern (Y-CL), and Y-auxiliary routing pattern (Y-TLP) are placed in the layer where the second touch sensor metal (TSM2) is placed. By placing the dummy pattern (DMP) in an area overlapping with the touch electrode line (TEL), a difference in visibility can be prevented from the area where the touch routing wiring (TL) and the auxiliary routing pattern (TLP) overlap.

[0319] Since only X-touch routing wiring (X-TL) that drives the X-touch electrode line (X-TEL) placed in the corresponding sub-region (SAA) is placed in the boundary areas on both sides of the active area (AA), the placement of X-touch routing wiring (X-TL) can be easy. The X-touch routing wiring (X-TL) can be implemented in a form that reduces wiring resistance by being composed of at least one of the first touch sensor metal (TSM1) and the second touch sensor metal (TSM2).

[0320] FIG. 17 is a drawing showing a specific example in which a touch sensor structure of a touch display device (100) according to embodiments of the present disclosure is implemented between a dam (DM) of an active area (AA) and a non-active area (NA) of a display panel (110).

[0321] Referring to FIG. 17, at least one dam (DM) may be placed in the non-active area (NA) of the display panel (110). At least one dam (DM) may be placed surrounding the active area (AA). At least one dam (DM) may be located on the outer edge of the encapsulation layer (ENCAP). At least one dam (DM) may be part of the encapsulation layer (ENCAP).

[0322] A plurality of touch routing wires (TL) may be located inside at least one dam (DM) in a non-active area (NA). A plurality of touch routing wires (TL) may be located between an active area (AA) and at least one dam (DM) in an area other than a pad area (PA).

[0323] Since a number of touch routing wires (TL) are located inside at least one dam (DM), the touch routing wires (TL) can be positioned while minimizing the increase in the non-active area (NA).

[0324] At least one shield line (SHL) may be positioned to surround at least a portion of a plurality of touch routing wires (TL). The shield line (SHL) may be located between the outermost touch routing wire (TL) among the plurality of touch routing wires (TL) and the dam (DM).

[0325] The shield line (SHL) may be made of the same material as the touch routing wiring (TL). For example, the shield line (SHL) may be made of at least one of the first touch sensor metal (TSM1) and the second touch sensor metal (TSM2).

[0326] The shield line (SHL) may be grounded. Alternatively, the shield line (SHL) may receive a signal different from the signal supplied through the touch routing wiring (TL).

[0327] Since the shield line (SHL) is positioned to wrap around the outer side of the touch routing wiring (TL), it can block external noise, thereby preventing or reducing the external noise from affecting the signal of the touch routing wiring (TL).

[0328] At least one guard line (GUL) can be placed between the touch routing wiring (TL) and the shield line (SHL).

[0329] The guard line (GUL) may be made of the same material as the touch routing wiring (TL). For example, the guard line (GUL) may be made of at least one of the first touch sensor metal (TSM1) and the second touch sensor metal (TSM2).

[0330] Since the guard line (GUL) is positioned between the touch routing wiring (TL) and the shield line (SHL), it can block the formation of parasitic capacitance between the touch routing wiring (TL) and the shield line (SHL). Since the parasitic capacitance between the touch routing wiring (TL) and the shield line (SHL) is blocked, it can prevent fluctuations in the signal or voltage state of the shield line (SHL) from affecting the touch routing wiring (TL).

[0331] The guard line (GUL) can receive a signal corresponding to a signal applied to the touch routing wire (TL) located closest to the guard line (GUL) among the multiple touch routing wires (TL). The guard line (GUL) can receive a signal corresponding to a signal applied to the touch routing wire (TL) located at the outermost edge among the multiple touch routing wires (TL).

[0332] A signal corresponding to a signal applied to a touch routing wire (TL) may mean a signal in which at least one of the frequency, amplitude, and phase of the signal applied to the touch routing wire (TL) is the same.

[0333] For example, the guard line (GUL) can receive the same signal at the same timing as the signal applied to the touch routing wire (TL) located closest to the guard line (GUL). Parasitic capacitance may not be formed between the guard line (GUL) and the touch routing wire (TL) located closest to the guard line (GUL). Indirect noise caused by the shield line (SHL) can be blocked by the guard line (GUL).

[0334] In this way, external noise can be blocked from directly affecting the touch routing wiring (TL) by the shield line (SHL). Additionally, indirect noise caused by the shield line (SHL) can be blocked from affecting the touch routing wiring (TL) by the guard line (GUL). By the shield line (SHL) and the guard line (GUL), noise in the signal detected through the touch routing wiring (TL) can be prevented or reduced, and signal deviation according to the location of the touch routing wiring (TL) can also be prevented or reduced.

[0335] At least one of the shield line (SHL) and the guard line (GUL) can be positioned separately in the non-active area (NA).

[0336] For example, the shield line (SHL) and the guard line (GUL) may be separated and positioned on the extension of the second boundary (BL2), as indicated by 1701.

[0337] The touch electrode line (TEL) placed in the first sub-region (SAA1) and the touch electrode line (TEL) placed in the third sub-region (SAA3) can be placed separately from each other and driven independently. There may be a minute difference in the driving timing of the touch routing wiring (TL) that supplies signals to the touch electrode line (TEL) placed in each of the first sub-region (SAA1) and the third sub-region (SAA3).

[0338] A guard line (GUL) that receives a signal corresponding to a signal applied to a touch routing wire (TL) can be separated and arranged to match a sub-area (SAA) driven by the touch routing wire (TL).

[0339] For example, a guard line (GUL) located on the side of the first sub-area (SAA1) and the second sub-area (SAA2) of the display panel (110) may be positioned to surround the outer side of the first sub-area (SAA1) since it is closest to the touch routing wiring (TL) driving the first sub-area (SAA1).

[0340] A guard line (GUL) located on the side of the third sub-region (SAA3) and the fourth sub-region (SAA4) of the display panel (110) can be positioned to surround the outer side of the third sub-region (SAA3) since it is closest to the touch routing wiring (TL) driving the third sub-region (SAA3).

[0341] Each of the guard lines (GUL) located on both sides of the display panel (110) can receive a signal corresponding to the signal applied to the touch routing wire (TL) in accordance with the timing when a signal is applied to the adjacent touch routing wire (TL).

[0342] In a structure where a touch electrode line (TEL) placed in an active area (AA) is divided into sub-areas (SAA) and driven, noise regarding the touch routing wiring (TL) driving each sub-area (SAA) can be blocked more accurately.

[0343] The above example is an example in which the guard line (GUL) is separated in a structure in which the active area (AA) is divided into four sub-areas (SAA), but the guard line (GUL) can be separated and arranged in various ways depending on the separation structure of the sub-areas (SAA).

[0344] In addition, the shield line (SHL) located on the outer side of the guard line (GUL) can also be separated and positioned in correspondence with the structure in which the guard line (GUL) is separated.

[0345] For example, the shield line (SHL) may be separated and positioned on the extension of the second boundary (BL2). Alternatively, depending on the case, the shield line (SHL) may be positioned without separation.

[0346] A grounded shield line (SHL) can be positioned to surround the wiring located in the non-active area (NA) to block external noise. A guard line (GUL) located adjacent to the touch routing wiring (TL) can be positioned separately to correspond to the touch routing wiring (TL) or the sub-area (SAA) driven by the touch routing wiring (TL), thereby blocking parasitic capacitance between the wirings and enhancing the noise blocking effect.

[0347] At least a portion of the touch routing wiring (TL), guard line (GUL), and shield line (SHL) placed in the non-active area (NA) can be electrically connected to a pad placed in the pad area (PA) to receive a signal.

[0348] FIG. 18 is a drawing showing a specific example in which a touch sensor structure of a touch display device (100) according to embodiments of the present disclosure is implemented in a non-active area (NA) including a pad area (PA) of a display panel (110).

[0349] Referring to FIG. 18, a pad area (PA) in which a plurality of pads are disposed on at least one side of the display panel (110) may be located.

[0350] A plurality of display pads electrically connected to wiring that supplies a signal for driving the display and a plurality of touch pads (TP) electrically connected to wiring that supplies a signal for touch sensing may be arranged in the pad area (PA).

[0351] A plurality of touch routing wires (TL) extend from an active area (AA) to a non-active area (NA) and can pass over a dam (DM). The touch routing wires (TL) can pass over the dam (DM) and be electrically connected to a touch pad (TP) placed in a pad area (PA).

[0352] A plurality of display signal lines (DSL) can be extended and positioned from an active area (AA) to a non-active area (NA). Since the display signal lines (DSL) are located below the encapsulation layer (ENCAP), they can be positioned passing under the dam (DM). The display signal lines (DSL) can be electrically connected to a display pad positioned in the pad area (PA).

[0353] At least a portion of each of the display pad and touch pad (TP) may be placed using a material that constitutes a touch electrode (TE) and a touch routing wire (TL). At least a portion of each of the display pad and touch pad (TP) may be placed using a material that constitutes a display signal line (DSL).

[0354] A pad portion made of a material constituting a touch electrode (TE) and a touch routing wire (TL), and a pad portion made of a material constituting a display signal line (DSL) are electrically connected in a pad area (PA) and can constitute various pads.

[0355] The planar structure in which the display pad and touch pad (TP) are arranged can vary depending on the location of the pad area (PA).

[0356] For example, a pad area (PA) can be distinguished in correspondence with a sub-area (SAA) of an active area (AA). For example, a pad area (PA) may include four pad areas (PA1, PA2, PA3, PA4).

[0357] A gate pad (GP) that supplies a signal or voltage related to driving a gate driving circuit (120), a data pad (DP) that supplies a signal or voltage related to driving a data driving circuit (130), and a touch pad (TP) may be disposed in the first pad area (PA1).

[0358] A touch pad (TP) placed in the first pad area (PA1) may be electrically connected to an X-touch routing wire (X-TL) that drives an X-touch electrode line (X-TEL) placed in the first sub-area (SAA1) and the second sub-area (SAA2). In some cases, a portion of the touch pad (TP) placed in the first pad area (PA1) may be electrically connected to a Y-touch routing wire (Y-TL) that drives a Y-touch electrode line (Y-TEL) placed in the first sub-area (SAA1) and the second sub-area (SAA2).

[0359] At least a portion of the touch pad (TP) placed in the first pad area (PA1) may be symmetrically positioned with respect to the display pad. For example, the touch pad (TP) may be symmetrically positioned with respect to the gate pad (GP). In this case, the touch routing wiring (TL) connected to the touch pad (TP) may be symmetrically positioned with respect to the display signal line (DSL) connected to the gate pad (GP).

[0360] A data pad (DP) and a touch pad (TP) that supply a signal or voltage related to driving the data driving circuit (130) may be placed in the second pad area (PA2) and the third pad area (PA3).

[0361] The touch pads (TP) placed in each of the second pad area (PA2) and the third pad area (PA3) can be symmetrically arranged. A data pad (DP) can be placed between a part of the symmetrically arranged touch pads (TP) and the rest.

[0362] A touch pad (TP) placed in the second pad area (PA2) can be electrically connected to a Y-touch routing wire (Y-TL) that drives a Y-touch electrode line (Y-TEL) placed in the first sub-area (SAA1) and the second sub-area (SAA2). A touch pad (PA) placed in the third pad area (PA3) can be electrically connected to a Y-touch routing wire (Y-TL) that drives a Y-touch electrode line (Y-TEL) placed in the third sub-area (SAA3) and the fourth sub-area (SAA4).

[0363] In some cases, a portion of the touch pad (TP) placed in the second pad area (PA2) may be electrically connected to a Y-touch routing wire (Y-TL) driving the third sub-area (SAA3) and the fourth sub-area (SAA4). A portion of the touch pad (TP) placed in the third pad area (PA3) may be electrically connected to a Y-touch routing wire (Y-TL) driving the first sub-area (SAA1) and the second sub-area (SAA2).

[0364] Additionally, depending on the case, a portion of the touch pad (TP) placed in the second pad area (PA2) may be electrically connected to an X-touch routing wire (X-TL) that drives an X-touch electrode line (X-TEL) placed in the first sub-area (SAA1) and the second sub-area (SAA2). A portion of the touch pad (TP) placed in the third pad area (PA3) may be electrically connected to an X-touch routing wire (X-TL) that drives an X-touch electrode line (X-TEL) placed in the third sub-area (SAA3) and the fourth sub-area (SAA4).

[0365] A touch pad (TP), a data pad (DP), and a gate pad (GP) may be placed in the fourth pad area (PA4). The pads placed in the fourth pad area (PA4) may be placed symmetrically with respect to the pads placed in the first pad area (PA1).

[0366] A touch pad (TP) placed in the fourth pad area (PA4) may be electrically connected to an X-touch routing wire (X-TL) that drives an X-touch electrode line (X-TEL) placed in the third sub-area (SAA3) and the fourth sub-area (SAA4). In some cases, a portion of the touch pad (TP) placed in the fourth pad area (PA4) may also be electrically connected to a Y-touch routing wire (Y-TL) that drives a Y-touch electrode line (Y-TEL) placed in the third sub-area (SAA3) and the fourth sub-area (SAA4).

[0367] When gate driving circuits (120) are placed on both sides of the display panel (110), gate pads (GP) can be placed in the first pad area (PA1) and the fourth pad area (PA4).

[0368] The data pad (DP) and touch pad (TP) are distributed by region within the gate pad (GP) and can be arranged to be electrically connected to the data line (DL) or touch routing wiring (TL) placed in the active area (AA).

[0369] In addition to the examples described above, pads placed in the pad area (PA) can be arranged in various structures for efficient connection with the display signal line (DSL) and touch routing wiring (TL).

[0370] The embodiments of the present disclosure described above are briefly explained as follows.

[0371] A touch display device (100) according to embodiments of the present disclosure may include a plurality of light-emitting elements (ED) disposed in an active area (AA) of a display panel (110), an encapsulation layer (ENCAP) disposed on the plurality of light-emitting elements (ED), a plurality of touch electrodes (TE) disposed on the encapsulation layer (ENCAP), a plurality of touch routing lines (TL) electrically connected to at least one of the plurality of touch electrodes (TE), and a plurality of auxiliary routing patterns (TLP) disposed in the active area (AA), located between the encapsulation layer (ENCAP) and the plurality of touch routing lines (TL), and electrically connected to at least one of the plurality of touch routing lines (TL) at at least one point located in the active area (AA).

[0372] The width of each of the multiple auxiliary routing patterns (TLP) can be greater than the width of each of the multiple touch routing wires (TL).

[0373] Each of the plurality of touch routing lines (TL) includes at least one first opening corresponding to a light-emitting region of each of the plurality of light-emitting elements (ED), and each of the plurality of auxiliary routing patterns (TLP) includes a second opening corresponding to a light-emitting region of each of the plurality of light-emitting elements (ED), and the size of the first opening may be larger than the size of the second opening.

[0374] The touch display device (100) may further include a touch insulation layer (TILD) disposed between a plurality of touch routing lines (TL) and a plurality of auxiliary routing patterns (TLP), and a touch insulation buffer layer (TIBUF) disposed between the touch insulation layer (TILD) and a plurality of auxiliary routing patterns (TLP).

[0375] The thickness of the touch insulation layer (TILD) can be greater than the thickness of the touch insulation buffer layer (TIBUF).

[0376] The touch insulation layer (TILD) may be an organic layer, and the touch insulation buffer layer (TIBUF) may be an inorganic layer.

[0377] The touch display device (100) may further include a touch buffer layer (TBUF) disposed between the encapsulation layer (ENCAP) and a plurality of auxiliary routing patterns (TLP) and made of the same material as the touch insulation buffer layer (TIBUF).

[0378] The touch display device (100) may further include a plurality of touch electrode connection patterns (CL) that are disposed on the same layer as the plurality of auxiliary routing patterns (TLP) and are disposed separately from the plurality of auxiliary routing patterns (TLP), and electrically connect two adjacent touch electrodes (TE) among the plurality of touch electrodes (TE).

[0379] Each of the multiple auxiliary routing patterns (TLP) can be arranged in a direction that intersects each of the multiple touch electrode connection patterns (CL).

[0380] The width of each of the multiple auxiliary routing patterns (TLP) may be the same as the width of each of the multiple touch electrode connection patterns (CL).

[0381] The active area (AA) includes a first sub-area (SAA1) and a second sub-area (SAA2) separated by a boundary of a first direction, and a touch routing wiring (TL) electrically connected to a touch electrode (TE) placed in the first sub-area (SAA1) and an auxiliary routing pattern (TLP) superimposed on the touch routing wiring (TL) may be placed in the second sub-area (SAA2).

[0382] The touch display device (100) may further include at least one dummy electrode (DME) disposed in at least a portion of the area corresponding to the area where touch routing wiring (TL) is disposed from the first sub-area (SAA1) to the second sub-area (SAA2).

[0383] The touch display device (100) may further include at least one dummy pattern (DMP) located in the same layer as the layer on which the auxiliary routing pattern (TLP) is placed and overlapping with at least one dummy electrode (DME).

[0384] The width of at least one dummy pattern (DMP) may be greater than the width of at least one dummy electrode (DME).

[0385] The width of at least one dummy pattern (DMP) can be equal to the width of each of multiple auxiliary routing patterns (TLP).

[0386] A touch display device (100) according to embodiments of the present disclosure may include an active area (AA) comprising a first sub-area (SAA1) and a second sub-area (SAA2), a plurality of touch electrodes (TE) disposed separately in each of the first sub-area (SAA1) and the second sub-area (SAA2), a plurality of touch routing wires (TL) electrically connected to at least one touch electrode (TE) disposed in the first sub-area (SAA1) among the plurality of touch electrodes (TE) and having a portion disposed in the second sub-area (SAA2), and a plurality of auxiliary routing patterns (TLP) disposed in the second sub-area (SAA2), electrically connected to an overlapping touch routing wire (TL) among the plurality of touch routing wires (TL), and having a width greater than the width of the overlapping touch routing wire (TL).

[0387] The touch display device (100) may further include at least one dummy electrode (DME) which is disposed in an area corresponding to the area in which a touch routing wire (TL) is disposed in a second sub-area (SAA2) from a first sub-area (SAA1) and has the same width as the touch routing wire (TL), and at least one dummy pattern (DMP) which overlaps with the at least one dummy electrode (DME) and has the same width as an auxiliary routing pattern (TLP).

[0388] The foregoing description is merely an illustrative explanation of the technical concept of the present disclosure, and those skilled in the art to which the present disclosure pertains may make various modifications and variations within the scope of the essential characteristics of the present disclosure. Furthermore, the embodiments disclosed in the present disclosure are intended to explain, not limit, the technical concept of the present disclosure, and thus the scope of the technical concept of the present disclosure is not limited by these embodiments. The scope of protection of the present disclosure shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present disclosure. Explanation of the symbols

[0389] 100: Touch display device 110: Display panel 120: Gate driving circuit 130: Data driving circuit 140: Controller 150: Touch driving circuit

Claims

Claim 1 A touch display device comprising: a plurality of light-emitting elements disposed in an active area of ​​a display panel; an encapsulation layer disposed on the plurality of light-emitting elements; a plurality of touch electrodes disposed on the encapsulation layer; a plurality of touch routing lines electrically connected to at least one of the plurality of touch electrodes; and a plurality of auxiliary routing patterns disposed in the active area, positioned between the encapsulation layer and the plurality of touch routing lines while overlapping with the encapsulation layer and the plurality of touch routing lines, and electrically connected to at least one of the plurality of touch routing lines at at least one point located in the active area. Claim 2 A touch display device according to claim 1, wherein the width of each of the plurality of auxiliary routing patterns is greater than the width of each of the plurality of touch routing wires. Claim 3 A touch display device according to claim 1, wherein each of the plurality of touch routing lines includes at least one first opening corresponding to a light-emitting region of each of the plurality of light-emitting elements, and each of the plurality of auxiliary routing patterns includes a second opening corresponding to a light-emitting region of each of the plurality of light-emitting elements, and the size of the first opening is larger than the size of the second opening. Claim 4 A touch display device according to claim 1, further comprising: a touch insulating layer disposed between the plurality of touch routing lines and the plurality of auxiliary routing patterns; and a touch insulating buffer layer disposed between the touch insulating layer and the plurality of auxiliary routing patterns. Claim 5 A touch display device according to claim 4, wherein the thickness of the touch insulating layer is greater than the thickness of the touch insulating buffer layer. Claim 6 A touch display device according to claim 4, wherein the touch insulating layer is an organic layer and the touch insulating buffer layer is an inorganic layer. Claim 7 A touch display device according to claim 4, further comprising a touch buffer layer disposed between the encapsulation layer and the plurality of auxiliary routing patterns and made of the same material as the touch insulation buffer layer. Claim 8 A touch display device according to claim 1, further comprising a plurality of touch electrode connection patterns disposed on the same layer as the plurality of auxiliary routing patterns disposed thereon, disposed separately from the plurality of auxiliary routing patterns, and electrically connecting two adjacent touch electrodes among the plurality of touch electrodes. Claim 9 In claim 8, each of the plurality of auxiliary routing patterns is a touch display device arranged in a direction intersecting each of the plurality of touch electrode connection patterns. Claim 10 In claim 8, a touch display device in which the width of each of the plurality of auxiliary routing patterns is the same as the width of each of the plurality of touch electrode connection patterns. Claim 11 A touch display device according to claim 1, wherein the active area includes a first sub-area and a second sub-area separated by a boundary of a first direction, and wherein a touch routing wiring electrically connected to a touch electrode disposed in the first sub-area and an auxiliary routing pattern superimposed with the touch routing wiring are disposed in the second sub-area. Claim 12 A touch display device according to claim 11, further comprising at least one dummy electrode disposed in at least a portion of an area corresponding to the area in which the touch routing wiring is disposed in the second sub-area in the first sub-area. Claim 13 A touch display device according to claim 12, further comprising at least one dummy pattern located on the same layer as the layer on which the auxiliary routing pattern is placed and overlapping with at least one dummy electrode. Claim 14 A touch display device according to claim 13, wherein the width of at least one dummy pattern is greater than the width of at least one dummy electrode. Claim 15 In paragraph 13, a touch display device in which the width of at least one dummy pattern is the same as the width of each of the plurality of auxiliary routing patterns. Claim 16 A touch display device comprising: an active area including a first sub-area and a second sub-area separated from each other by a straight-line extending boundary; a plurality of touch electrodes disposed separately in each of the first sub-area and the second sub-area, such that they do not extend into the interior of the different sub-areas by passing through the boundary; a plurality of touch routing lines electrically connected to at least one touch electrode disposed in the first sub-area among the plurality of touch electrodes, with a portion disposed in the second sub-area and another portion located in a boundary area disposed along the boundary; and a plurality of auxiliary routing patterns disposed in the second sub-area, electrically connected to an overlapping touch routing line among the plurality of touch routing lines, and having a width greater than the width of the overlapping touch routing line. Claim 17 A touch display device according to claim 16, further comprising: at least one dummy electrode disposed in an area corresponding to the area in which the touch routing wiring is disposed in the second sub-area of ​​the first sub-area and having the same width as the touch routing wiring; and at least one dummy pattern that overlaps with the at least one dummy electrode and has the same width as the auxiliary routing pattern.

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