Display device

Abstract

A display device according to one embodiment of the present invention comprises a display panel including pixels in a display area and a scan driving unit for driving pixels in a non-display area, and a touch sensing unit disposed on the display panel and including touch electrodes disposed in a sensing area and touch sensing lines connected to the touch electrodes. The non-display area includes at least one multiplexer, and the touch sensing lines are electrically connected to an input terminal of the multiplexer through a touch contact hole formed in the display panel, and the sensing channels electrically connected to the output terminal of the multiplexer are parallel in the extension direction to the scan driving unit, and the multiplexer is disposed between the sensing channels and the scan driving unit.

Description

Technology Field

[0001] The present invention relates to a display device. Background Technology

[0002] Electronic devices such as smartphones, digital cameras, laptop computers, navigation systems, and smart televisions that provide video to users include a display device for displaying video. The display device includes a display panel that generates and displays video and various input devices.

[0003] Touch sensors that recognize touch input are being widely applied to display devices, primarily in smartphones and tablet PCs. Due to the convenience of touch input, touch sensors are increasingly replacing traditional physical input devices such as keypads.

[0004] Touch sensors include mutual capacitance and magnetic capacitance methods. The mutual capacitance method utilizes the change in capacitance between two conductive layers; by driving multiple touch electrodes arranged in rows and columns, it imposes fewer spatial constraints when designing signal lines and pads for driving the touch sensor. However, as display devices have become larger, RC delay issues have emerged, and the magnetic capacitance method is being recognized as an alternative to address this. The problem to be solved

[0005] On the other hand, since the self-capacitance method utilizes a single conductive layer, it experiences relatively fewer problems caused by RC delay compared to the mutual capacitance method, even when display devices are enlarged. However, because multiple touch electrodes arranged in rows and columns are driven separately, there may be greater spatial constraints when designing the signal lines and pads for driving the touch sensors compared to the mutual capacitance method. While multiplexers are used to overcome this, it can lead to an increase in dead space where the screen is not displayed.

[0006] In addition, due to spatial constraints, wiring for driving the touch sensor and wiring for driving the display panel may be placed adjacently. This can lead to signal interference between the wiring for driving the touch sensor and the wiring for driving the display panel, resulting in the problem of noise being introduced into the touch sensor detection signal.

[0007] The problem that the present invention aims to solve is to provide a method for minimizing dead space and reducing noise generated from wiring for driving a display panel in a display device including a magnetic capacitive touch sensor.

[0008] The problems of the present invention are not limited to the technical problems mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0009] A display device according to an embodiment of the present invention for solving the above problem comprises: a display panel including pixels in a display area and a scan driving unit for driving the pixels in a non-display area; and a touch sensing unit disposed on the display panel and including touch electrodes disposed in a sensing area and touch sensing lines connected to the touch electrodes.

[0010] The above non-display area includes at least one multiplexer, the touch sensing lines are electrically connected to the input terminal of the multiplexer through a touch contact hole formed in the display panel, the sensing channels electrically connected to the output terminal of the multiplexer are parallel in the extension direction to the scan driving unit, and the multiplexer is positioned between the sensing channels and the scan driving unit.

[0011] The above multiplexer includes a plurality of switching elements, and gate control lines for controlling the switching elements may be arranged on one side of the multiplexer.

[0012] The number of the above touch sensing lines may be greater than the number of the above sensing channels.

[0013] The above sensing channels and the above gate control lines can be positioned on opposite sides with respect to the multiplexer.

[0014] The gate control lines mentioned above can be arranged parallel to the extension direction of the sensing channels.

[0015] The above scan driving unit may include stages that provide a scan signal to each of the pixels.

[0016] Scan control lines for driving the stages may be arranged on one side of the stages.

[0017] The above scan control lines may include a first clock signal line, a second clock signal line, and a scan start signal line, etc.

[0018] The above scan control lines can be placed between the sensing channels and the stages.

[0019] It includes a second power voltage line that is parallel in extension direction to the scan control lines, wherein the second power voltage supplied through the second power voltage line may be a DC voltage.

[0020] The second power supply voltage line can be placed between the gate control lines and the scan control lines.

[0021] The above sensing channels may be positioned between the second power supply voltage line and the scan control lines.

[0022] A touch driving voltage line and a touch ground voltage line may be further included between the control signal lines and the gate control lines.

[0023] The above touch sensing unit may be a single-layer type including a conductive layer and an insulating layer.

[0024] The conductive layer may include the touch electrode and the touch sensing lines.

[0025] A display device according to an embodiment of the present invention for solving the above problem comprises: a display panel including pixels in a display area and a scan driving unit for driving the pixels in a non-display area; and a touch sensing unit disposed on the display panel and including touch electrodes disposed in a sensing area and touch sensing lines connected to the touch electrodes.

[0026] The above non-display area includes at least one multiplexer, the touch sensing lines are electrically connected to the input terminals of the multiplexers through touch contact holes formed in the display panel, the sensing channels electrically connected to the output terminals of the multiplexers are connected to touch signal pads formed in one area of ​​the non-display area, the scan control lines for controlling the scan driver are connected to display signal pads formed in one area of ​​the non-display area, and the touch signal pads and the signal pads are arranged opposite each other with respect to the display panel.

[0027] The above multiplexer includes a plurality of switching elements, and gate control lines for controlling the switching elements may be arranged on one side of the multiplexer.

[0028] The above sensing channels and the above gate control lines can be positioned on opposite sides with respect to the multiplexer.

[0029] It includes a second power voltage line connected to the above-mentioned indicator signal pad, wherein the gate power lines may be arranged between the second power voltage line and the multiplexer.

[0030] The above scan control lines may include a first clock signal line, a second clock signal line, and a scan start signal line, etc.

[0031] A display device according to an embodiment of the present invention for solving the above problem comprises: a display panel including pixels in a display area and a scan driving unit for driving the pixels in a non-display area; and a touch sensing unit disposed on the display panel and including touch electrodes disposed in a sensing area and touch sensing lines connected to the touch electrodes.

[0032] The above non-display area includes at least one multiplexer, and the touch sensing lines are electrically connected to the input terminal of the multiplexer through a touch contact hole formed in the display panel, and the sensing channels electrically connected to the output terminal of the multiplexer are parallel in the extension direction to the scan driving unit, and a second power voltage line may be disposed between the sensing channels and the scan driving unit, parallel in the extension direction of the sensing channels and the extension direction of the scan driving unit.

[0033] The above multiplexer includes a plurality of switching elements, and gate control lines for controlling the switching elements may be arranged on one side of the multiplexer.

[0034] The above sensing channels and the above gate control lines can be positioned on opposite sides with respect to the multiplexer.

[0035] A touch driving voltage line and a touch ground voltage line may be further included between the gate control lines and the multiplexer.

[0036] The above scan driving unit includes stages that provide a scan signal to each of the pixels, wherein scan control lines for driving the stages are arranged on one side of the stages, and the scan control lines may include a first clock signal line, a second clock signal line, and a scan start signal line, etc.

[0037] The above scan control lines can be placed between the second power voltage line and the stages.

[0038] The second power supply voltage supplied through the second power supply voltage line may be a DC voltage. Effects of the invention

[0039] A display device according to an embodiment of the present invention can minimize dead space and reduce noise generated from wiring for driving a display panel by changing the arrangement of wiring for driving a touch sensor (e.g., sensing channels, driving voltage lines, and ground voltage lines) and circuits (e.g., multiplexers, pad portions) formed on a substrate.

[0040] The effects according to the present invention are not limited to those exemplified above, and various other effects are included in this specification. Brief explanation of the drawing

[0041] FIG. 1 is a perspective view of a display device according to one embodiment of the present invention. FIG. 2 is a cross-sectional view of a display device according to one embodiment of the present invention. FIG. 3 is a plan view of a display panel according to one embodiment of the present invention. FIG. 4 is an equivalent circuit diagram of a pixel according to one embodiment of the present invention. FIG. 5 is a cross-sectional view of a part of a display panel corresponding to the equivalent circuit shown in FIG. 4. FIGS. 6a and FIGS. 6b are a cross-sectional view and a plan view of a touch sensing unit according to an embodiment of the present invention. FIGS. 7A and 7B are a cross-sectional view and a plan view of a touch sensing unit according to another embodiment of the present invention. FIG. 7C is a cross-sectional view of a touch sensing unit cut along the line I-I' of FIG. 7B. FIG. 8 is a schematic diagram illustrating a circuit for touch detection of the present invention. FIG. 9a is an enlarged plan view of the AA1 area of ​​FIG. 3. FIG. 9b and FIG. 9c are cross-sectional views taken along the line II-II' of FIG. 9a. FIG. 10a is an enlarged plan view of the scan driving area of ​​a display panel according to another embodiment of the present invention. FIG. 10b and FIG. 10c are cross-sectional views cut along the line III-III' of FIG. 10a. FIG. 11a is an enlarged plan view of the scan driving area of ​​a display panel according to another embodiment of the present invention. FIG. 11b and FIG. 11c are cross-sectional views cut along the line IV-IV' of FIG. 11a. FIG. 12a is a plan view of a display panel according to one embodiment of the present invention. FIG. 12b is a plan view of a touch sensing unit according to one embodiment of the present invention. FIG. 13a is an enlarged plan view of the AA2 area of ​​FIG. 12a. FIG. 13b is an enlarged plan view of the AA3 area of ​​FIG. 12a. FIG. 14 is a plan view of a display panel according to one embodiment of the present invention. FIG. 15 is a plan view of a display panel according to one embodiment of the present invention. FIG. 16 is a plan view of a touch sensing unit according to one embodiment of the present invention. FIG. 17 is a plan view of a display panel according to one embodiment of the present invention. FIG. 18 is a plan view of a display panel according to one embodiment of the present invention. FIG. 19 is a plan view of a touch sensing unit according to one embodiment of the present invention. Specific details for implementing the invention

[0042] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. The embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims.

[0043] When elements or layers are referred to as being 'on' another element or layer, it includes all cases where another layer or element is placed directly on top of or in the middle of another element.

[0044] Although terms such as first, second, third, fourth, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be any one of the second, third, or fourth components within the technical scope of the present invention.

[0045] The embodiments described herein will be explained with reference to plan and cross-sectional views, which are ideal schematic diagrams of the invention. Accordingly, the shape of the illustrative drawings may be modified due to manufacturing techniques and / or tolerances, etc. Therefore, the embodiments of the invention are not limited to the specific shapes depicted but include variations in shape resulting from the manufacturing process. Accordingly, the regions illustrated in the drawings have schematic properties, and the shapes of the regions illustrated in the drawings are intended to illustrate specific forms of the regions of the device and are not intended to limit the scope of the invention.

[0046] Hereinafter, embodiments will be described with reference to the attached drawings.

[0047] FIG. 1 is a perspective view of a display device according to one embodiment of the present invention.

[0048] As illustrated in FIG. 1, the display surface (IS) on which an image is displayed may be parallel to the surface defined by the first direction (DR1) and the second direction (DR2). The normal direction of the display surface (IS) may be the thickness direction (or the third direction (DR3)) of the display device (DD). The front (or top) and back (or bottom) surfaces of each member may be distinguished by the third direction (DR3). However, the directions indicated by the first to third directions (DR1, DR2, DR3) are relative concepts and may be converted to other directions. Hereinafter, the first to third directions may refer to the same reference numeral for the directions indicated by the first to third directions (DR1, DR2, DR3), respectively.

[0049] A display device (DD) according to one embodiment of the present invention may be a flat rigid display device (DD). However, it is not limited thereto, and the display device according to the present invention may be a flexible display device (DD). A display device (DD) according to one embodiment of the present invention may be applied to large electronic devices such as televisions and monitors, as well as small and medium-sized electronic devices such as mobile phones, tablets, car navigation systems, game consoles, and smartwatches.

[0050] As illustrated in FIG. 1, a display device (DD) may include a display area (DD-DA) where an image is displayed and a non-display area (DD-NDA) adjacent to the display area (DD-DA). The non-display area (DD-NDA) is an area where an image is not displayed. For example, the display area (DD-DA) may be rectangular. The non-display area (DD-NDA) may surround the display area (DD-DA). However, it is not limited thereto, and the shape of the display area (DD-DA) and the non-display area (DD-NDA) may be arranged in various shapes.

[0051] FIG. 2 is a cross-sectional view of a display device according to an embodiment of the present invention. FIG. 2 illustrates a cross-section defined by a first direction (DR1) and a third direction (DR3).

[0052] As illustrated in FIG. 2, the display device (DD) may include a display panel (DP) and a touch sensing unit (TS, or touch sensing layer). Although not separately illustrated, the display device (DD) according to one embodiment of the present invention may further include a protective member disposed on the lower surface of the display panel (DP), an anti-reflective member disposed on the upper surface of the touch sensing unit (TS), and / or a window member.

[0053] A display panel (DP) includes pixels for displaying images and may be a display panel of various types and / or structures. For example, the display panel (DP) may be a self-emissive display panel, such as an Organic Light Emitting Display panel (LD panel) using an organic light-emitting diode as a light-emitting element, a Nano-scale LED Display panel (Nano LED panel) using a nano-scale light-emitting diode as a light-emitting element, a Quantum dot Organic Light Emitting Display panel (QD LD panel) using an organic light-emitting diode and a quantum dot, or a Quantum dot Nano-scale LED Display panel (QD Nano LED panel) using a nano-scale light-emitting diode and a quantum dot. Alternatively, the display panel (DP) may be a non-emissive display panel such as a Liquid Crystal Display panel (LCD panel), an Electro-Phoretic Display panel (EPD panel), and an Electro-Wetting Display panel (EWD panel). When a non-emissive display panel is used as the display panel (DP), the display device (DD) may further include a separate light source device (e.g., a backlight unit) for supplying light to the display panel (DP). Hereinafter, the display panel (DP) may be described as an organic light-emitting display panel.

[0054] The display panel (DP) may include a base layer (SUB), a circuit element layer (DP-CL) disposed on the base layer (SUB), a display element layer (DP-LD), and a thin film encapsulation layer (TFE). Although not separately illustrated, the display panel (DP) may further include functional layers such as an anti-reflective layer and a refractive index control layer.

[0055] The base layer (SUB) may include at least one plastic film. The base layer (SUB) may be a flexible substrate, such as a plastic substrate, a glass substrate, a metal substrate, or an organic / inorganic composite material substrate. The display area (DD-DA) and non-display area (DD-NDA) described with reference to FIG. 1 may be defined identically on the base layer (SUB).

[0056] The circuit element layer (DP-CL) may include at least one intermediate insulating layer and a circuit element. The intermediate insulating layer may include at least one intermediate inorganic film and at least one intermediate organic film. The circuit element may include signal lines, a pixel driving circuit, etc. A detailed description thereof may be provided later.

[0057] The display element layer (DP-LD) may include light-emitting elements. The display element layer (DP-LD) may further include an organic film, such as a pixel definition film.

[0058] A thin film encapsulation layer (TFE) can seal a display device layer (DP-LD). The thin film encapsulation layer (TFE) may include at least one inorganic film (hereinafter referred to as the encapsulation inorganic film). The thin film encapsulation layer (TFE) may further include at least one organic film (hereinafter referred to as the encapsulation organic film). The encapsulation inorganic film can protect the display device layer (DP-LD) from moisture / oxygen, and the encapsulation organic film can protect the display device layer (DP-LD) from foreign substances such as dust particles. The encapsulation inorganic film may include a silicon nitride layer, a silicon oxynitride layer and a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer, etc. The encapsulation organic film may include an acrylic-based organic layer, but is not limited thereto.

[0059] The touch sensing unit (TS) can acquire coordinate information of an external input. The touch sensing unit (TS) can be placed directly on an organic light-emitting display panel (DP). In this specification, "directly placed" means formed by a continuous process, excluding attachment using a separate adhesive layer.

[0060] The touch sensing unit (TS) may have a multilayer structure. The touch sensing unit (TS) may include a single layer or a multilayer conductive layer. The touch sensing unit (TS) may include a single layer or a multilayer insulating layer. The touch sensing unit (TS) may detect external input, for example, in a capacitive manner.

[0061] FIG. 3 is a plan view of a display panel according to one embodiment of the present invention. FIG. 4 is an equivalent circuit diagram of a pixel according to one embodiment of the present invention.

[0062] Referring to FIGS. 1 to 3, a display panel (DP) may include a display area (DA) and a non-display area (NDA) on a plane. In this embodiment, the non-display area (NDA) may be defined along the border of the display area (DA). The display area (DA) and the non-display area (NDA) of the display panel (DP) may correspond to the display area (DD-DA) and the non-display area (DD-NDA) of the display device (DD) shown in FIG. 1, respectively. The display area (DA) and the non-display area (NDA) of the display panel (DP) do not necessarily have to be identical to the display area (DD-DA) and the non-display area (DD-NDA) of the display device (DD), and may be changed according to the structure / design of the display panel (DP).

[0063] According to one embodiment of the present invention, the display panel (DP) may further include a driving circuit and display signal lines (DSL) for driving a pixel (PX), as well as a circuit, touch signal lines, and touch contact holes (CNT) for driving a touch detection unit (TS) to be described later.

[0064] For example, a driving circuit for driving a pixel (PX) includes a scan driving unit (SDC), and display signal lines (DSL) for driving the pixel (PX) may include scan lines (SCL), data lines (DL), a first power supply voltage line (VDDL), a second power supply voltage line (VSSL), and scan control lines (CSL).

[0065] Multiple pixels (PX) may be placed in a display area (DA). Each pixel (PX) may include a light-emitting element and a pixel driving circuit connected thereto. A scan driving unit (SDC), display signal lines (DSL), and a pixel driving circuit may be included in a circuit element layer (DP-CL) shown in FIG. 2.

[0066] The scan driver (SDC) can generate multiple scan signals and sequentially output the multiple scan signals to multiple scan lines (SCL) described below. The scan driver (SDC) can further output another control signal to the driving circuit of the pixels (PX).

[0067] The scan drive unit (SDC) may include a plurality of thin-film transistors formed through the same process as the drive circuit of the pixels (PX), for example, the LTPS (Low Temperature Polycrystalline Silicon) process or the LTPO (Low Temperature Polycrystalline Oxide) process.

[0068] Scan lines (SCL) may be connected to corresponding pixels (PX) among a plurality of pixels (PX), and data lines (DL) may be connected to corresponding pixels (PX) among a plurality of pixels (PX). First and second power lines (VDDL, VSSL) may be connected to a plurality of pixels (PX). Scan control lines (CSL) may provide control signals to a scan driver (SDC). For example, the scan control line (CSL) may include a scan start signal line and first and second clock signal lines, etc.

[0069] The display panel (DP) may include signal pads (DP-PD) connected to the ends of the display signal lines (DSL). The display signal pads (DP-PD) may be a type of circuit element. The area within the non-display area (NDA) where the display signal pads (DP-PD) are placed may be defined as a pad area (NDA-PD). Touch signal pads (TS-PD) connected to the touch signal lines described later may also be placed in the pad area (NDA-PD).

[0070] A first power supply voltage line (VDDL) can supply a first power supply voltage (VDD, see FIG. 4) to a pixel (PX), and a second power supply voltage line (VSSL) can supply a second power supply voltage (VSS, see FIG. 4) to a pixel (PX). For example, the first power supply voltage (VDD) may be a high DC power supply voltage applied to the light-emitting element (LD, see FIG. 4), and the second power supply voltage (VSS) may be a low DC power supply voltage applied to the light-emitting element (LD).

[0071] The first power voltage line (VDDL) may have a straight shape corresponding to the lower corner of the display area (DA). That is, the first power voltage line (VDDL) generally extends in the second direction (DR2) and branches out in one area into the first direction (DR1) to be electrically connected to the display signal pads (DP-PD).

[0072] The second power voltage line (VSSL) can be formed in a shape that surrounds the display area (DA). That is, the second power voltage line (VSSL) can correspond to the shape of the display area (DA). For example, if the display area (DD-DA) is rectangular, the shape of the second power voltage line (VSSL) can also be rectangular. The second power voltage line (VSSL) can be extended in a first direction (DR1) from one area (for example, the lower side of the display area (DA)) and electrically connected to the display signal pads (DP-PD).

[0073] The total maximum current capacity for driving multiple light-emitting elements (LDs) included in multiple pixels (PX) is at the level of tens of amperes, and the current capacity for the power supply voltage can be increased as the display device (DD) becomes larger. Accordingly, the width of the first power supply voltage line (VDDL) and the second power supply voltage line (VSSL) can be increased.

[0074] The circuit for driving the touch detection unit (TS) described below includes a multiplexer (MUX), and the touch signal lines for driving the touch detection unit (TS) may include gate control lines (GCL), a touch driving voltage line (VDL), and a touch ground voltage line (VGL).

[0075] A plurality of touch contact holes (CNT) may be placed in a non-display area (NDA). According to one embodiment of the present invention, the touch contact holes (CNT) may be placed in the left non-display area (NDA) of the display panel (DP). For example, the touch contact holes (CNT) may be arranged in a line along the left corner of the display panel (DP) in a first direction (DR1). However, the arrangement of the touch contact holes (CNT) is not limited thereto, and the touch contact holes (CNT) may be placed to the right or above the non-display area (NDA).

[0076] The number of touch contact holes (CNT) may correspond to the number of touch electrodes (TE) formed on the thin film encapsulation layer (TFE) to be described later. The first touch sensing lines (SL1) connected to each of the plurality of touch electrodes (TE) may be connected to the input terminal of a multiplexer (MUX) formed within the circuit element layer (DP-CL) through the touch contact holes (CNT).

[0077] A multiplexer (MUX) may be placed between a touch sensing unit (TS) and touch signal pads (TS-PD) in terms of the flow of sensing signals. The touch sensing unit (TS) may include touch electrodes (TE) and a first touch sensing line (SL1). One end of the first touch sensing line (SL1) may be connected to the touch electrode (TE), and the other end may be connected to a second touch sensing line (SL2) through a touch contact hole (CNT). At this time, the first touch sensing line (SL1) may be formed on a thin film encapsulation layer (TFE), and the second touch sensing line (SL2) may be formed within a circuit element layer (DP-CL).

[0078] A multiplexer (MUX) can select some of the multiple second touch sensing lines (SL2) and connect them to the sensing channels (SCH) connected to the output terminal. The number of the second touch sensing lines (SL2) may be greater than the number of the sensing channels (SCH). In FIG. 3, a single multiplexer (MUX) is depicted for convenience of explanation, but it is not limited thereto, and the multiplexer (MUX) may be composed of multiple units.

[0079] The multiplexer (MUX) may include a plurality of thin-film transistors formed through the same process as the driving circuit of the pixels (PX), for example, the LTPS (Low Temperature Polycrystalline Silicon) process or the LTPO (Low Temperature Polycrystalline Oxide) process.

[0080] Sensing channels (SCH) connected to the output terminals of the multiplexer (MUX) can be connected to touch signal pads (TS-PD).

[0081] As shown in FIGS. 9a, 10a, and 11a, gate control lines (GCL) for controlling switching elements (or thin-film transistors) included in the multiplexer (MUX), and touch driving voltage lines (VDL) and touch ground voltage lines (VGL) required for driving a touch sensing unit (TS) may be disposed in the peripheral region of the multiplexer (MUX).

[0082] FIG. 4 illustrates an exemplary pixel (PX) connected to a scan line (SCL), a data line (DL), and a power line (PL). The configuration of the pixel (PX) is not limited thereto and can be modified.

[0083] A pixel (PX) may include a light-emitting element (LD) and a pixel driving circuit (PXC) for driving the light-emitting element (LD). The light-emitting element (LD) may be a front-emitting diode or a back-emitting diode. The pixel driving circuit (PXC) may include a first transistor (T1, or switching transistor), a second transistor (T2, or driving transistor), and a capacitor (Cst). A first power supply voltage (VDD) may be provided to the second transistor (T2), and a second power supply voltage (VSS) may be provided to the light-emitting element (LD). The second power supply voltage (VSS) may be a lower voltage than the first power supply voltage (VDD).

[0084] The first transistor (T1) can output a data signal applied to the data line (DL) in response to a scan signal applied to the scan line (SCL). The capacitor (Cst) can charge a voltage corresponding to the data signal received from the first transistor (T1).

[0085] The second transistor (T2) can be connected to a light-emitting element (LD). The second transistor (T2) can control the driving current flowing to the light-emitting element (LD) in correspondence with the amount of charge stored in the capacitor (Cst). The light-emitting element (LD) can emit light during the turn-on period of the second transistor (T2).

[0086] Although not illustrated in FIG. 3, the display panel (DP) may include a dam (not illustrated). The dam may extend along the border of the display area (DA). The dam may surround the display area (DA).

[0087] FIG. 5 is a cross-sectional view of a portion of a display panel corresponding to the equivalent circuit shown in FIG. 4. At this time, a circuit element layer (DP-CL), a display element layer (DP-LD), and a thin film encapsulation layer (TFE) may be sequentially arranged on a base layer (SUB).

[0088] The circuit element layer (DP-CL) may include at least one inorganic film, at least one organic film, and a circuit element. The circuit element layer (DP-CL) may include a buffer film (BFL) which is an inorganic film, a first intermediate inorganic film (10), and a second intermediate inorganic film (20), and may include a first intermediate organic film (30) and a second intermediate organic film (40) which are organic films.

[0089] Inorganic films may use a single-layer or multi-layer structure including silicon nitride, silicon oxynitride, and silicon oxide, etc. Organic films may include at least one of acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, urethane resin, cellulose resin, siloxane resin, polyimide resin, polyamide resin, and perylene resin. Circuit elements may include conductive patterns and / or semiconductor patterns.

[0090] The buffer film (BFL) enhances the bonding strength between the base layer (SUB) and the conductive patterns or semiconductor patterns. Although not separately illustrated, a barrier layer preventing the ingress of foreign substances may be further disposed on the upper surface of the base layer (SUB). The buffer film (BFL) and the barrier layer may be optionally disposed or omitted.

[0091] A semiconductor pattern of a first transistor (T1) (OSP1: hereinafter the first semiconductor pattern) and a semiconductor pattern of a second transistor (T2) (OSP2: hereinafter the second semiconductor pattern) may be disposed on a buffer film (BFL). The first semiconductor pattern (OSP1) and the second semiconductor pattern (OSP2) may be selected from amorphous silicon, polysilicon, and metal oxide semiconductors.

[0092] A first intermediate inorganic film (10) may be disposed on a first semiconductor pattern (OSP1) and a second semiconductor pattern (OSP2). A control electrode (GE1: hereinafter, first control electrode) of a first transistor (T1) and a control electrode (GE2: hereinafter, second control electrode) of a second transistor (T2) may be disposed on the first intermediate inorganic film (10). The first control electrode (GE1) and the second control electrode (GE2) may be manufactured according to the same photolithography process as the scan lines (SCL, see FIG. 5a).

[0093] A second intermediate inorganic film (20) covering a first control electrode (GE1) and a second control electrode (GE2) may be disposed on the first intermediate inorganic film (10). On the second intermediate inorganic film (20), an input electrode (DE1: hereinafter, first input electrode) and an output electrode (SE1: first output electrode) of a first transistor (T1), and an input electrode (DE2: hereinafter, second input electrode) and an output electrode (SE2: second output electrode) of a second transistor (T2) may be disposed.

[0094] The first input electrode (DE1) and the first output electrode (SE1) can be respectively connected to the first semiconductor pattern (OSP1) through the first contact hole (CH1) and the second contact hole (CH2) penetrating the first intermediate inorganic film (10) and the second intermediate inorganic film (20). The second input electrode (DE2) and the second output electrode (SE2) can be respectively connected to the second semiconductor pattern (OSP2) through the third contact hole (CH3) and the fourth contact hole (CH4) penetrating the first intermediate inorganic film (10) and the second intermediate inorganic film (20). Meanwhile, in another embodiment of the present invention, some of the first transistor (T1) and the second transistor (T2) may be modified into a bottom gate structure.

[0095] A first intermediate organic film (30) covering a first input electrode (DE1), a second input electrode (DE2), a first output electrode (SE1), and a second output electrode (SE2) may be disposed on the second intermediate organic film (20). The first intermediate organic film (30) may provide a flat surface. A connecting electrode (CNE) connecting the second output electrode (SE2) of the second transistor (T2) and the first electrode (AE) may be disposed on the first intermediate organic film (30). The connecting electrode (CNE) may be connected to the second output electrode (SE2) of the second transistor (T2) through a 5_1 contact hole (CH5_1) penetrating the first intermediate organic film (30). A second intermediate organic film (40) covering the connecting electrode (CNE) may be disposed on the first intermediate organic film (30). The first and second intermediate organic films (30, 40) may include organic insulating materials such as general-purpose polymers like polymethylmethacrylate or polystylene, polymer derivatives having phenolic groups, acrylic polymers, imide polymers, aryl ether polymers, amide polymers, fluorine polymers, p-xylene polymers, vinyl alcohol polymers, and blends thereof. In one embodiment, the first and second intermediate organic films (30, 40) may include polyimide.

[0096] A display element layer (DP-LD) may be disposed on the second intermediate organic film (40). The display element layer (DP-LD) may include a pixel defining film (PDL) and a light-emitting element (LD). The pixel defining film (PDL) may include an organic material, such as the second intermediate organic film (40). A first electrode (AE) may be disposed on the second intermediate organic film (40). The first electrode (AE) may be connected to a connecting electrode (CNE) through a 5_2 contact hole (CH5_2) penetrating the second intermediate organic film (40). An opening (OP) may be defined in the pixel defining film (PDL). The opening (OP) of the pixel defining film (PDL) exposes at least a portion of the first electrode (AE).

[0097] A pixel (PX) may be placed in a pixel area on a plane. The pixel area may include a light-emitting area (PXA) and a non-light-emitting area (NPXA) adjacent to the light-emitting area (PXA). The non-light-emitting area (NPXA) may surround the light-emitting area (PXA). In this embodiment, the light-emitting area (PXA) is defined to correspond to a portion of the first electrode (AE) exposed by the opening (OP).

[0098] A hole control layer (HCL) can be placed in common in the emitting region (PXA) and the non-emitting region (NPXA). Although not separately illustrated, a common layer such as the hole control layer (HCL) can be formed in common in a plurality of pixels (PX, see FIG. 3).

[0099] An emitting layer (EML) may be disposed on a hole control layer (HCL). The emitting layer (EML) may be disposed in an area corresponding to an aperture (OP). That is, the emitting layer (EML) may be formed separately on each of a plurality of pixels (PX). The emitting layer (EML) may include organic and / or inorganic materials. Although a patterned emitting layer (EML) is illustrated as an example in this embodiment, the emitting layer (EML) may be disposed commonly across a plurality of pixels (PX). In this case, the emitting layer (EML) may generate white light. Additionally, the emitting layer (EML) may have a multilayer structure.

[0100] An electronic control layer (ECL) may be disposed on the light-emitting layer (EML). Although not separately illustrated, the electronic control layer (ECL) may be formed in common on a plurality of pixels (PX, see FIG. 3).

[0101] A second electrode (CE) may be disposed on the electronic control layer (ECL). The second electrode (CE) may be disposed commonly on a plurality of pixels (PX).

[0102] A thin film encapsulation layer (TFE) may be disposed on the second electrode (CE). The thin film encapsulation layer (TFE) may be disposed commonly across a plurality of pixels (PX). In this embodiment, the thin film encapsulation layer (TFE) may directly cover the second electrode (CE). In one embodiment of the present invention, a capping layer covering the second electrode (CE) may be further disposed between the thin film encapsulation layer (TFE) and the second electrode (CE). In this case, the thin film encapsulation layer (TFE) may directly cover the capping layer.

[0103] FIGS. 6a and FIGS. 6b are a cross-sectional view and a plan view of a touch sensing unit according to an embodiment of the present invention.

[0104] Referring to FIGS. 6a and 6b, a touch sensing unit (TS) according to one embodiment of the present invention may be a single-layer touch sensing unit comprising a conductive layer (TS-CL) and an insulating layer (TS-IL, touch insulating layer). The single-layer touch sensing unit (TS) may acquire coordinate information by a magnetic capacitance method. The conductive layer (TS-CL) may include a plurality of patterns, such as touch electrodes and touch signal lines. The touch insulating layer (TS-IL) comprises at least an inorganic film. The touch insulating layer may further comprise an organic film.

[0105] Meanwhile, as illustrated in FIGS. 9b, 10b, and 11b, the touch sensing unit (TS) may further include a first barrier layer (BRL1) and a second barrier layer (BRL2) between the thin film encapsulation layer (TFE) and the conductive layer (TS-CL). The first barrier layer (BRL1) may be formed from an inorganic material. For example, the first barrier layer (120) may include a silicon-containing material such as amorphous silicon (a-Si), silicon oxide (SiOx), silicon nitride (SiNx), etc. The second barrier layer (BRL2) may be formed from an inorganic material. The second barrier layer (BRL2) may be formed to have the same material or the same thickness as the first barrier layer (BRL1), but is not limited thereto, and the first barrier layer (BRL1) and the second barrier layer (BRL2) may have different materials and different thicknesses.

[0106] A touch detection unit (TS) may include a detection area (SA) capable of detecting touch input and a non-detection area (NSA) surrounding at least a portion of the detection area (SA). According to an embodiment, the detection area (SA) may be positioned to correspond to a display area (DA) of a display panel (DP), and the non-detection area (NSA) may be positioned to correspond to a non-display area (NDA) of a display panel (DP). For example, the detection area (SA) of the touch detection unit (TS) may overlap with the display area (DA) of the display panel (DP) in a third direction (DR3), and the non-detection area (NSA) of the touch detection unit (TS) may overlap with the non-display area (NDA) of the display panel (DP) in a third direction (DR3).

[0107] A touch sensing unit (TS) may include touch electrodes (TE) and first touch sensing lines (SL1) spaced apart from each other. According to one embodiment of the present invention, the touch electrodes (TE) may be arranged in a matrix form. The touch electrodes (TE) may be formed in a rectangular shape, but are not limited thereto, and in some embodiments, the touch electrodes (TE) may be formed in various shapes such as polygonal, circular, or elliptical shapes. In addition, in some embodiments, the touch electrodes (TE) may have two or more shapes. For example, some of the touch electrodes (TE) may be formed in a rectangular shape, and the rest of the touch electrodes (TE) may be formed in a circular shape.

[0108] Touch electrodes (TE) can be arranged in the form of islands spaced apart from each other along the first direction (DR1) and the second direction (DR2). The touch electrodes (TE) can form a row of electrodes in the second direction (DR2) and a column of electrodes in the first direction (DR1). In FIG. 6b, for convenience of explanation, the touch electrodes (TE) are depicted as a 4x8 matrix. That is, it is depicted that 4 touch electrodes (TE) are arranged along the first direction (DR1) and 8 touch electrodes are arranged along the second direction (DR2). However, this is an example, and the number and arrangement of touch electrodes (TE) can be varied.

[0109] Touch electrodes (TE) can be connected to one end of the first touch sensing lines (SL1). The other end of the first touch sensing lines (SL1) can be connected to the contact hole (CNT) shown in FIG. 3. The first touch sensing lines (SL1) can be connected to the second touch sensing lines (SL2) formed on the circuit element layer (DP-CL) through the contact hole (CNT) shown in FIG. 3. The second touch sensing lines (SL2) correspond to the first touch sensing lines (SL1) formed on the thin film encapsulation layer (TFE), and can transmit the detection signal flowing through the first touch sensing lines (SL1) to the input terminal of the multiplexer (MUX).

[0110] FIGS. 7A and 7B are a cross-sectional view and a plan view of a touch sensing unit according to another embodiment of the present invention. FIG. 7C is a cross-sectional view of a touch sensing unit cut along the line I-I' of FIG. 7B.

[0111] The embodiment of the touch sensing unit (TS) illustrated in FIGS. 7a and 7b differs from the embodiment illustrated in FIGS. 6a and 6b, in that the first touch sensing lines (SL1) are formed on a conductive layer different from the touch electrodes (TE), in that the first touch sensing lines (SL1) are formed on a conductive layer different from the touch electrodes (TE). Hereinafter, descriptions of substantially identical configurations will be omitted, and the focus will be on the differences.

[0112] Specifically, referring to FIG. 7a, the touch sensing unit (TS) includes a first conductive layer (TS-CL1), a first insulating layer (TS-IL1, hereinafter the first touch insulating layer), a second conductive layer (TS-CL2), and a second insulating layer (TS-IL2, hereinafter the second touch insulating layer). The first conductive layer (TS-CL1) is placed directly on a thin film encapsulation layer (TFE). Not limited thereto, another inorganic layer or an organic layer may be further placed between the first conductive layer (TS-CL1) and the thin film encapsulation layer (TFE).

[0113] As illustrated in FIG. 7b, a touch sensing unit (TS) may include a sensing area (SA) capable of detecting a touch input and a non-sensing area (NSA) surrounding at least a portion of the sensing area (SA). The touch sensing unit (TS) may include touch electrodes (TE) and first touch sensing lines (SL1) spaced apart from each other. According to one embodiment of the present invention, the touch electrodes (TE) may be arranged in a matrix form.

[0114] According to one embodiment, the first touch sensing lines (SL1) extend to a second direction (DR2) and may be arranged along the first direction (DR1). One end of the first touch sensing lines (SL1) is connected to touch electrodes (TE), and the other end may be connected to the second touch sensing lines (SL2) through a touch contact hole (CNT).

[0115] The area of ​​the touch electrodes (TE) shown in FIG. 7b may be larger than the area of ​​the touch electrodes (TE) shown in FIG. 6b. That is, since the first touch sensing lines (SL1) are formed on a different layer from the touch electrodes (TE), they may be arranged to overlap each other in a third direction (DR3). Accordingly, the area of ​​the touch electrodes (TE) can be formed larger, so that the effect of improved touch sensing performance can be expected.

[0116] Referring to FIG. 7c, the first conductive layer (TS-CL1) may include first touch sensing lines (SL1), and the second conductive layer (TS-CL2) may include touch electrodes (TE). The touch electrodes (TE) may be electrically connected to the first touch sensing lines (SL1) through a sixth contact hole (CH6) penetrating the first touch insulating layer (TS-IL1).

[0117] FIG. 8 is a schematic diagram illustrating a circuit for touch detection of the present invention.

[0118] Referring to FIG. 8, the touch driving IC (TIC) may include a touch driving unit (TDR) and a touch detection unit (TDT). The touch driving unit (TDR) can supply a driving signal to a touch detection unit (TS) (or touch electrode (TE)) and receive a detection signal corresponding to the driving signal from the touch detection unit (TS) (or touch electrode (TE)) to detect the touch position.

[0119] The pre-charging switching element (PS) of the touch driving unit (TDR) applies a pre-charge voltage (Vpre) to the touch electrode (TE) in response to a switching signal (Vg). The touch detection unit (TS) of the present invention may include a driving voltage generating unit (not shown) within the touch driving unit (TDR) to enhance touch sensitivity. When a touch is detected, the driving voltage generating unit may apply a touch driving voltage (Vdrv) to a driving capacitor (Cdrv).

[0120] When a finger (FG) touches a touch sensing unit (TS) (or a touch electrode (TE)), contact capacitive capacitance (Ct) may be generated. Although not shown in the drawing, a cover window may be placed on the touch electrode (TE), and it may be considered that contact capacitive capacitance (Ct) is generated when a finger (FG) touches a cover window that overlaps the touch electrode (TE) in the thickness direction.

[0121] Depending on the voltage value applied to the common driving electrode, the value of the capacitive capacitance formed between the touch electrode (TE) and the common driving electrode may change. The touch electrodes (TE) may overlap with at least one electrode provided in the display panel (DP). For example, if the display panel (DP) is an organic light-emitting diode display panel, the touch electrodes (TE) may overlap with the cathode electrode (CE, see FIG. 5) of the display panel (DP). According to one embodiment, the cathode electrode (CE) of the display panel (DP) may function as a common driving electrode.

[0122] The value (Cgnd) of the capacitive capacitance formed between the touch electrode (TE) and the common driving electrode can change depending on the touch ground voltage (Vgnd) applied to the common driving electrode.

[0123] The touch detection unit (TDT) of the present invention can determine whether contact or non-contact touch occurs by a touch input means (e.g., a finger (FG)) of a touch electrode (TE) based on the voltage difference between when a contact capacitive capacitance (Ct) is generated and when it is not generated, while a driving voltage (Vdrv) is applied to a driving capacitor (Cdrv).

[0124] For example, when a user's finger (FG) comes into contact with at least one of the touch electrodes (TE), a contact capacitive capacitance (Ct) is generated between the finger (FG) and the touch electrodes (TE), and the value of the capacitive capacitance (Cgnd) may change due to the contact capacitive capacitance (Ct). The changed value of the capacitive capacitance (Cgnd) can be transmitted to a touch detection unit (TDT) through touch sensing lines (SL1, SL2) connected to the touch electrodes (TE) to which the finger (FG) came into contact. The touch detection unit (TDT) can detect the touch location by checking the touch sensing lines (SL1, SL2) to which the changed value of the capacitive capacitance (Cgnd) is received. That is, the touch detection unit (TDT) can detect the touch location by detecting the amount of change in the self-capacitance formed on the touch electrodes (TE).

[0125] Meanwhile, when signal lines are placed in close proximity, crosstalk between the signal lines increases, which can degrade signal integrity. Conventionally, sensing channels (SCH) output from a multiplexer (MUX) were placed adjacent to scan control lines (CSL); however, crosstalk occurred from first and second clock signals (CLK1, CLK2) and / or scan start signals (STV) transmitted through the scan control lines (CSL), resulting in a problem where the quality of the detection signals of the sensing channels (SCH) deteriorated.

[0126] In order to prevent noise from being introduced into the detection signal transmitted through the sensing channels (SCH), it is necessary to spatially separate the sensing channels (SCH) and scan control lines (CSL). However, for the sake of process efficiency, the scan driver (SDC) and the multiplexer (MUX) are generally formed simultaneously through the same process as the driving circuit of the pixels (PX), for example, the LTPS (Low Temperature Polycrystalline Silicon) process or the LTPO (Low Temperature Polycrystalline Oxide) process. Therefore, various embodiments are examined below in which the sensing channels (SCH) and scan control lines (CSL) are spaced apart from each other in a plane (or in the first direction (DR1) and the second direction (DR)).

[0127] FIG. 9a is a plan view showing an enlarged view of the AA1 area of ​​FIG. 3. FIG. 9b and FIG. 9c are cross-sectional views taken along the line II-II' of FIG. 9a. FIG. 9b is a cross-sectional view corresponding to the embodiment shown in FIG. 6a and FIG. 6b, and FIG. 9c is a cross-sectional view corresponding to the embodiment shown in FIG. 7a to FIG. 7c.

[0128] Referring to FIG. 3, FIG. 9a, FIG. 9b and FIG. 9c, in a display panel (DP) according to one embodiment of the present invention, a scan driving unit (SDC), a second power voltage line (VSSL), a multiplexer (MUX), and touch contact holes (CNT) may be sequentially arranged from a display area (DA) toward one end of the display panel (DP) (for example, toward the left end).

[0129] The scan drive unit (SDC) may include a plurality of stages (ST). In FIG. 9, for convenience of explanation, four stages (ST1, ST2, ST3, ST4) are shown.

[0130] A scan driving unit (SDC) according to an embodiment of the present invention may include first to fourth stages (ST1 to ST4). One end of each of the first to fourth stages (ST1 to ST4) is connected to any one of the first to fourth scan lines (SCL1 to SCL4), and the other end of each of the first to fourth stages (ST1 to ST4) may be connected to first and second clock signal lines (CLKL1, CLKL2) that supply first and second clock signals (CLK1, CLK2) and a scan start signal line (STVL) that supplies a scan start signal (STV). Such first to fourth stages (ST1 to ST4) may be configured with the same circuit.

[0131] According to one embodiment, the first and second clock signal lines (CLKL1, CLKL2) and the scan start signal line (STVL) may be formed on the left side of the first to fourth stages (ST1 to ST4). The first and second clock signal lines (CLKL1, CLKL2) and the scan start signal line (STVL) may be extended parallel to each other along the first direction (DR1). Each of the first and second clock signal lines (CLKL1, CLKL2) and the scan start signal line (STVL) is electrically connected to touch signal pads (TS_PD) and may receive the first and second clock signals (CLK1, CLK2) and the scan start signal (STV) through the touch signal pads (TS_PD).

[0132] Each of the first to fourth stages (ST1 to ST4) may be equipped with a first input terminal (IN1) to a third input terminal (IN3) and an output terminal (OUT).

[0133] The first input terminal (IN1) of each stage (ST1 to ST4) can receive an output signal (i.e., a driving signal) or a scan start signal (STV) from the previous stage. For example, the first input terminal (IN1) of the first stage (ST1) can receive a scan start signal (STV), and the first input terminals (IN1) of the remaining stages (ST2 to ST4) can receive an output signal from the previous stage.

[0134] The second input terminal (IN2) of the odd-numbered stage may receive the first clock signal (CLK1), and the third input terminal (IN3) may receive the second clock signal (CLK2). The second input terminal (IN2) of the even-numbered stage may receive the second clock signal (CLK2), and the third input terminal (IN3) may receive the first clock signal (CLK1). However, this is not limited thereto, and the clock signals (CLK1, CLK2) input to the odd-numbered stage and the even-numbered stage may be opposite.

[0135] The first clock signal (CLK1) and the second clock signal (CLK2) have the same period and their phases do not overlap. For example, when the period during which a driving signal is supplied through a single driving line is called 1 horizontal period (1H), each of the clock signals (CLK1, CLK2) has a period of 2H and can be supplied during different horizontal periods.

[0136] A multiplexer (MUX) can be placed between planar touch contact holes (CNT) and a scan drive unit (SDC).

[0137] A multiplexer (MUX) may include a plurality of switching elements (or a first transistor (TR1), a second transistor (TR2), a third transistor (TR3), and a fourth transistor (TR4)). Since the first to fourth transistors (TR1 to TR4) operate substantially identically, the following description will be based on the first transistor (TR1).

[0138] The first transistor (TR1) may be connected between the second touch sensing line (SL2) and the third touch sensing line (SL3). According to one embodiment, the first transistor (TR1) may include a first electrode connected to the second touch sensing line (SL2), a second electrode connected to the third touch sensing line (SL3), and a gate electrode connected to the gate control line (GCL).

[0139] One end of the third touch sensing line (SL3) may be connected to the output terminal of a multiplexer (MUX), and the other end may be connected to touch signal pads (TS_PD, see FIG. 3). According to one embodiment, the second touch sensing line (SL2) and the third touch sensing line (SL3) may be extended parallel to each other along the second direction (DR).

[0140] The first transistor (TR1) can be turned on in response to a gate control signal supplied through the gate control lines (GCL). The gate control lines (GCL) can be placed on one side of the multiplexer (MUX). For example, the gate control lines (GCL) can be placed on the right side of the multiplexer (MUX).

[0141] In other words, the gate control lines (GCL) can be positioned between the planar multiplexer (MUX) and the scan driver (SDC). The gate control lines (GCL) can be extended along the first direction (DR1) and positioned alongside the first and second clock signal lines (CLKL1, CLKL2) and the scan start signal line (STVL).

[0142] A touch driving voltage line (VDL) and a touch ground voltage line (VGL) may be arranged on one side of the gate control line (GCL). For example, the touch driving voltage line (VDL) and the touch ground voltage line (VGL) may be arranged sequentially on the right side of the gate control line (GCL).

[0143] A touch driving voltage (Vdrv, see FIG. 8) is supplied to a touch electrode (TE) through a touch driving voltage line (VDL), and a touch ground voltage (Vgnd) can be supplied to at least one electrode (e.g., a cathode electrode (CE), see FIG. 5) provided in a display panel (DP) through a touch ground voltage line (VGL).

[0144] Sensing channels (SCH) that transmit a detection signal received from a touch detection unit (TS) to touch signal pads (TS_PD) may be positioned on one side of a multiplexer (MUX). For example, the sensing channels (SCH) may be positioned on the left side of the multiplexer (MUX). Meanwhile, although the sensing channels (SCH), the second touch sensing line (SL2), and the third touch sensing line (SL3) are each shown as orthogonal in FIG. 9a, the sensing channels (SCH) and the second touch sensing line (SL2) may each be formed on different layers of the circuit element layer (DP-CL), and the sensing channels (SCH) and the third touch sensing line (SL3) may each be formed on different layers of the circuit element layer (DP-CL).

[0145] The second power supply voltage line (VSSL) may be positioned between the first clock signal line (CLKL1) and the touch ground voltage line (VGL). The second power supply voltage line (VSSL) may extend in the first direction (DR1) and be positioned parallel to the first clock signal line (CLKL1) and the touch ground voltage line (VGL). The second power supply voltage (VSS) supplied through the second power supply voltage line (VSSL) may be a DC voltage.

[0146] According to experimental measurements, it was confirmed that noise ingress is reduced when the distance between the sensing channels (SCH) and the scan control lines (CSL, see FIG. 3) (or, the first and second clock signals (CLKL1, CLKL2) and the scan start signal line (STV)) is greater than a certain distance. For example, when the distance between the sensing channels (SCH) and the scan control lines (CSL) was greater than approximately 300 μm, the noise ingress was reduced to a good level, and when the distance was greater than approximately 348 μm, almost no noise ingress occurred.

[0147] According to one embodiment of the present invention, by arranging a multiplexer (MUX), gate control lines (GCL), touch driving voltage line (VDL), ground voltage line (VGL), and second power supply voltage line (VSSL) between the sensing channels (SCH) and the scan control lines (CSL), the effect of preventing noise that may be introduced from the first and second clock signals (CLKL1, CLKL2) and the scan start signal line (STV) can be expected. In particular, the second power supply voltage (VSS) supplied through the second power supply voltage line (VSSL) is a DC voltage and has excellent noise shielding capabilities.

[0148] Meanwhile, if circuits and signal lines required to drive the display device (DD) (for example, a multiplexer (MUX), gate control lines (GCL), touch driving voltage line (VDL), ground voltage line (VGL), and second power supply voltage line (VSSL), etc.) are arranged in a space between the sensing channels (SCH) and scan control lines (CSL) (or, first and second clock signals (CLKL1, CLKL2) and scan start signal line (STV)) to provide noise shielding, the effect of reducing dead space as well as noise shielding can be expected.

[0149] Referring to FIGS. 9b and 9c, the thin film encapsulation layer (TFE) is typically formed to cover the second power supply voltage line (VSSL). In this case, the thin film encapsulation layer (TFE) may include a first inorganic film (IOL1), an organic film (OL), and a second inorganic film (IOL2).

[0150] According to one embodiment, a display panel (DP, see FIG. 3) may include first and second dampers (DMP1, DMP2). The first and second dampers (DMP1, DMP2) may extend along the border of a display area (DA). The dampers (DMP) may surround the display area (DA). For example, the first damper (DMP1) may be positioned to overlap the touch driving voltage line (VDL) and the ground voltage line (VGL) in the thickness direction (or, third direction (DR3)), and the second damper (DMP2) may be positioned to overlap the second power supply voltage line (VSSL) in the thickness direction (or, third direction (DR3)). One end of the thin film encapsulation layer (TFE) may be positioned to overlap the multiplexer (MUX) in the thickness direction (or, third direction (DR3)).

[0151] When a touch contact hole (CNT) and a second power supply voltage line (VSSL) are placed adjacently, a problem may occur in which the touch contact hole (CNT) becomes blocked during the process of sealing the second power supply voltage line (VSSL) with a thin film encapsulation layer (TFE). To prevent the touch contact hole (CNT) from becoming blocked, it may be required to separate one end of the thin film encapsulation layer (TFE) from the touch contact hole (CNT) by a first distance (d1, see FIG. 11a, FIG. 11b and FIG. 11c). For example, the first distance (d1) from the touch contact hole (CNT) to one end of the thin film encapsulation layer (TFE) may be approximately 100 [μm]. In addition to the first distance (d1), if the touch contact hole (CNT) area is formed large considering the process margin, it may cause an increase in dead space.

[0152] As illustrated in FIGS. 9b and 9c, according to one embodiment of the present invention, a second distance (d2) greater than a first distance (d1, see FIGS. 11 and FIGS. 11c) can be provided from the touch contact hole (CNT) to one end of the thin film encapsulation layer (TFE). In other words, by arranging sensing channels (SCH), a multiplexer (MUX), gate control lines (GCL), a touch driving voltage line (VDL), and a ground voltage line (VGL) between the touch contact hole (CNT) and the second power supply voltage line (VSSL), a sufficient separation distance between the touch contact hole (CNT) and the second power supply voltage line (VSSL) can be secured. In this case, since a separation distance of at least a first distance (d1) already exists between the touch contact hole (CNT) and one end of the thin film encapsulation layer (TFE), there is no need to additionally provide an empty space equal to the first distance (d1) between the touch contact hole (CNT) and one end of the thin film encapsulation layer (TFE). Furthermore, in this case, since the probability of the touch contact hole (CNT) being blocked by the thin film encapsulation layer (TFE) is low, the touch contact hole (CNT) can be formed smaller compared to the case where the touch contact hole (CNT) and the second power supply voltage line (VSSL) are placed adjacently, thus allowing for the expectation of a reduction in dead space.

[0153] Other embodiments are described below. In the following embodiments, descriptions of components identical to those already described will be omitted or simplified, and the focus will be on the differences.

[0154] FIG. 10a is an enlarged plan view of the scan driving area of ​​a display panel according to another embodiment of the present invention. FIG. 10b and FIG. 10c are cross-sectional views cut along the line III-III' of FIG. 10a. At this time, FIG. 10b is a cross-sectional view corresponding to the embodiment illustrated in FIG. 6a and FIG. 6b, and FIG. 10c is a cross-sectional view corresponding to the embodiment illustrated in FIG. 7a to FIG. 7c.

[0155] The embodiment illustrated in FIGS. 10a, 10b, and 10c differs from the embodiment illustrated in FIGS. 9a, 9b, and 9c, in that the gate control lines (GCL), touch driving voltage line (VDL), and ground voltage line (VGL) are arranged on the left side and the sensing channels (SCH) are arranged on the right side, with respect to the multiplexer (MUX), in that the sensing channels (SCH) are arranged on the left side and the gate control lines (GCL), touch driving voltage line (VDL), and ground voltage line (VGL) are arranged on the right side, with respect to the multiplexer (MUX).

[0156] According to one embodiment, sensing channels (SCH) and gate control lines (GCL) may be positioned on opposite sides with respect to a multiplexer (MUX). For example, the sensing channels (SCH) may be positioned to the right with respect to the multiplexer (MUX), and the gate control lines (GCL) may be positioned to the left with respect to the multiplexer (MUX).

[0157] The touch driving voltage line (VDL) and the touch ground voltage line (VGL) can be placed between the gate control lines (GCL) and the multiplexer (MUX). For example, the gate control lines (GCL), the touch driving voltage line (VDL), the touch ground voltage line (VGL), and the multiplexer (MUX) can be placed sequentially along the second direction (DR2).

[0158] In the embodiments of FIGS. 10a, FIGS. 10b and FIGS. 10c, just like in the embodiments of FIGS. 9a, FIGS. 9b and FIGS. 9c, by placing a second power supply voltage line (VSSL) between the sensing channels (SCH) and the scan control lines (CSL) (for example, the first and second clock signals (CLKL1, CLKL2) and the scan start signal line (STV)), the effect of preventing noise that may be introduced from the first and second clock signals (CLKL1, CLKL2) and the scan start signal line (STV) can be expected.

[0159] Meanwhile, instead of leaving a gap between the sensing channels (SCH) and the scan control lines (CSL) (for example, the first and second clock signals (CLKL1, CLKL2) and the scan start signal line (STV)), a gap can be created by placing the second power supply voltage line (VSSL), etc., thereby reducing the dead space.

[0160] FIG. 11a is an enlarged plan view of the scan driving area of ​​a display panel according to another embodiment of the present invention. FIG. 11b and FIG. 11c are cross-sectional views cut along the line IV-IV' of FIG. 11a. At this time, FIG. 11b is a cross-sectional view corresponding to the embodiment illustrated in FIG. 6a and FIG. 6b, and FIG. 11c is a cross-sectional view corresponding to the embodiment illustrated in FIG. 7a to FIG. 7c.

[0161] The embodiment illustrated in FIGS. 11a, 11b, and 11c differs from the embodiment illustrated in FIGS. 9a, 9b, and 9c, in that the second power supply voltage line (VSSL) is positioned between the sensing channels (SCH) and the first clock signal line (CLKL1), in that the second power supply voltage line (VSSL) is positioned between the touch contact hole (CNT) and the sensing channels (SCH). In this case, to prevent the touch contact hole (CNT) from being blocked, it may be required to space one end of the thin film encapsulation layer (TFE) from the touch contact hole (CNT) by a first distance (d1). For example, the first distance (d1) from the touch contact hole (CNT) to one end of the thin film encapsulation layer (TFE) may be about 100 [μm].

[0162] In the embodiments of FIGS. 11a, 11b, and 11c, just like in the embodiments of FIGS. 9a, 9b, and 9c, by placing a multiplexer (MUX), gate control lines (GCL), touch driving voltage line (VDL), and ground voltage line (VGL) between the sensing channels (SCH) and scan control lines (CSL) (for example, first and second clock signals (CLKL1, CLKL2) and scan start signal line (STV)), the effect of preventing noise that may be introduced from the first and second clock signals (CLKL1, CLKL2) and the scan start signal line (STV) can be expected.

[0163] A display panel (DP, see FIG. 3) may include first and second dampers (DMP1, DMP2). For example, the first damper (DMP1) may be positioned so as not to overlap with the touch driving voltage line (VDL) and the ground voltage line (VGL) in the thickness direction (or, third direction (DR3)), and the second damper (DMP2) may be positioned so as not to overlap with the second power supply voltage line (VSSL) in the thickness direction (or, third direction (DR3)). One end of the thin film encapsulation layer (TFE) may be positioned so as not to overlap with the multiplexer (MUX) in the thickness direction (or, third direction (DR3)).

[0164] Meanwhile, instead of leaving a gap between the sensing channels (SCH) and scan control lines (CSL) (for example, first and second clock signals (CLKL1, CLKL2) and scan start signal line (STV)), circuits and signal lines necessary to drive the display device (DD) (for example, a multiplexer (MUX), gate control lines (GCL), touch driving voltage line (VDL), ground voltage line (VGL), and second power supply voltage line (VSSL), etc.) are placed to create a gap, thereby reducing the dead space.

[0165] FIG. 12a is a plan view of a display panel according to an embodiment of the present invention. FIG. 12b is a plan view of a touch detection unit according to an embodiment of the present invention. FIG. 13a is a plan view showing an enlarged view of the AA2 area of ​​FIG. 12a. FIG. 13b is a plan view showing an enlarged view of the AA3 area of ​​FIG. 12a.

[0166] The embodiments illustrated in FIG. 12a to 13b differ from the embodiment illustrated in FIG. 3, in which the multiplexer (MUX) is formed on the left side of the display panel (DP), in that the multiplexer (MUX) is formed on the upper side of the display panel (DP). Descriptions of substantially identical configurations are omitted, and the differences are described.

[0167] Referring to FIG. 12a, a display panel (DP) may include a display area (DA) and a non-display area (NDA) on a plane. A plurality of touch contact holes (CNT) may be placed in the non-display area (NDA). According to one embodiment of the present invention, touch contact holes (CNT) may be placed in the upper non-display area (NDA) of the display panel (DP). For example, touch contact holes (CNT) may be arranged in a line along the upper edge of the display panel (DP) in a second direction (DR2).

[0168] Referring to FIG. 12b, the first touch sensing lines (SL1) may be extended in a first direction (DR1) and arranged along a second direction (DR2). One end of the first touch sensing lines (SL1) may be connected to touch electrodes (TE), and the other end may be connected to the second touch sensing lines (SL2) through a touch contact hole (CNT).

[0169] The number of touch contact holes (CNT) may correspond to the number of touch electrodes (TE) formed on the thin film encapsulation layer (TFE). For example, since the number of touch electrodes (TE) shown in FIG. 12b is 32, the number of touch contact holes (CNT) shown in FIG. 12a may also be 32.

[0170] Referring to FIG. 13a, a multiplexer (MUX) may be disposed between the touch contact holes (CNT) and the second power supply voltage line (VSSL). In the peripheral area of ​​the multiplexer (MUX), gate control lines (GCL) for controlling a switching element (or thin-film transistor) included in the multiplexer (MUX), and a touch driving voltage line (VDL) and a touch ground voltage line (VGL) required for driving a touch sensing unit (TS) may be disposed. For example, the second power supply voltage line (VGL), the touch ground voltage line, the touch driving voltage line (VDL), the gate control lines (GCL), the multiplexer (MUX), and the sensing channels (SCH) may be disposed sequentially in a direction from the display area (DA) toward the upper end of the display panel (DP) (or a first direction (DR1)).

[0171] For convenience of explanation, a single multiplexer (MUX) is depicted to correspond to the length of one corner of the display area (DA); however, the size and number of multiplexers (MUX) can be varied depending on the number of touch electrodes (TE) included in the touch sensing unit (TS). Therefore, if the multiplexer (MUX) is placed in the upper non-display area (NDA) of the display panel (DP), the extra space within the non-display area (NDA), that is, the space where no elements are formed, can be utilized. In other words, the effect of reducing the dead space of the display panel (DP) can be expected.

[0172] Referring to FIG. 13b, a second power supply voltage line (VSSL), a touch ground voltage line, a touch driving voltage line (VDL), gate control lines (GCL), and sensing channels (SCH) may be sequentially arranged in a direction from the display area (DA) toward the left end of the display panel (DP) (or a second direction (DR2)). At this time, the second power supply voltage line (VSSL), the touch ground voltage line (VGL), the touch driving voltage line (VDL), the gate control lines (GCL), and the sensing channels (SCH) may generally extend in a first direction (DR1) and be arranged side by side in a second direction (DR2).

[0173] In the embodiments of FIGS. 12a to 13b, similar to the embodiment of FIG. 9, gate control lines (GCL), touch driving voltage line (VDL), ground voltage line (VGL), and second power supply voltage line (VSSL) are arranged between the sensing channels (SCH) and scan control lines (CSL) (for example, first and second clock signals (CLKL1, CLKL2) and scan start signal line (STV)), thereby allowing for the effect of preventing noise that may be introduced from the first and second clock signals (CLKL1, CLKL2) and the scan start signal line (STV). In particular, the second power supply voltage (VSS) supplied through the second power supply voltage line (VSSL) is a DC voltage and has excellent noise shielding capabilities.

[0174] Meanwhile, instead of leaving a gap between the sensing channels (SCH) and scan control lines (CSL) (for example, first and second clock signals (CLKL1, CLKL2) and scan start signal line (STV)), circuits and signal lines required to drive the display device (DD) (for example, gate control lines (GCL), touch driving voltage line (VDL), ground voltage line (VGL), and second power supply voltage line (VSSL), etc.) are placed and the gap is spaced apart, thereby reducing the dead space.

[0175] FIG. 14 is a plan view of a display panel according to one embodiment of the present invention.

[0176] The embodiment illustrated in FIG. 14 differs from the embodiments illustrated in FIG. 12a to 13b, in which the touch signal pads (TS-PD) are formed on the lower side of the display panel (DP), in that the touch signal pads (TS-PD) are formed on the upper side of the display panel (DP). Duplicate descriptions regarding substantially identical configurations will be omitted, and the explanation will focus on the differences.

[0177] Specifically, referring to FIG. 14, touch signal pads (TS-PD) can be formed opposite display signal pads (DP-PD) with the display area (DA) in between. For example, touch signal pads (TS-PD) can be formed in the upper non-display area (NDA) of the display area (DA), and display signal pads (DP-PD) can be formed in the lower non-display area (NDA) of the display area (DA).

[0178] As the touch signal pads (TS-PD) are placed in an area adjacent to the multiplexer (MUX), the sensing channels (SCH) can directly connect the touch signal pads (TS-PD) to the multiplexer (MUX) without diverting to another area. Since the wiring length of the sensing channels (SCH) is reduced, the effect of reducing RC delay and the probability of crosstalk can be expected. For example, since the sensing channels (SCH) do not need to divert to the side of the scan driver (SDC), the probability of noise being introduced from the first and second clock signals (CLKL1, CLKL2) and the scan start signal line (STV) can be significantly reduced.

[0179] Furthermore, the thin film encapsulation layer (TFE) illustrated in FIG. 2 is generally formed to cover the second power supply voltage line (VSSL). When the touch contact hole (CNT) and the second power supply voltage line (VSSL) are placed adjacently as in the conventional method, a problem may arise where the touch contact hole (CNT) becomes blocked during the process of sealing the second power supply voltage line (VSSL) with the thin film encapsulation layer (TFE). To prevent this, a first distance (d1) is required from the touch contact hole (CNT) to one end of the thin film encapsulation layer (TFE) in the design. For example, the first distance (d1) may be approximately 100 [㎛]. In addition, generally, forming a large area of ​​the touch contact hole (CNT) to account for the process margin causes an increase in dead space.

[0180] On the other hand, according to the embodiment illustrated in FIG. 14, since the separation distance between the touch contact hole (CNT) and the second power supply voltage line (VSSL) is sufficiently large, even considering the first distance (d1) from the touch contact hole (CNT), the distance at which one end of the thin film encapsulation layer (TFE) can be formed can be secured by the second distance (d2). As a result, compared to the case where the touch contact hole (CNT) and the second power supply voltage line (VSSL) are placed adjacently, the touch contact hole (CNT) area can be formed smaller, so the effect of reducing dead space can be expected.

[0181] FIG. 15 is a plan view of a display panel according to an embodiment of the present invention. FIG. 16 is a plan view of a touch detection unit according to an embodiment of the present invention. FIG. 17 is a plan view of a display panel according to an embodiment of the present invention.

[0182] The embodiment illustrated in FIGS. 15 and 16 differs from the embodiment illustrated in FIGS. 3, 6a, and 6b in that the multiplexer (MUX) is placed not only on the left side of the display panel (DP) but also in the right non-display area (NDA).

[0183] Referring to FIG. 15, a display panel (DP) may include a display area (DA) and a non-display area (NDA) on a plane. A plurality of touch contact holes (CNT) may be placed in the non-display area (NDA). According to one embodiment of the present invention, touch contact holes (CNT) may be placed in each of the left and right non-display areas (NDA) of the display panel (DP). For example, touch contact holes (CNT) may be arranged in a line along the left and right corners of the display panel (DP) in a first direction (DR1).

[0184] Referring to FIG. 16, the extension direction of the first touch sensing lines (SL1_L, SL1_R) may vary depending on whether they are connected to a touch electrode (TE_L) formed on the left side or a touch electrode (TE_R) formed on the right side relative to the vertical centerline (L1) of the touch sensing unit (TS). For example, the first touch sensing lines (SL1_L) connected to the touch electrode (TE_L) formed on the left side may extend from right to left, and the first touch sensing lines (SL1_R) connected to the touch electrode (TE_R) formed on the right side may extend from left to right.

[0185] The embodiment illustrated in FIGS. 15 and 16 can be expected to have substantially similar effects to the embodiment illustrated in FIGS. 3, 6a, and 6b. Furthermore, since the first touch sensing lines (SL1_L, SL1_R) are divided into two groups and connected to adjacent touch signal pads (TS-PD), the wiring length of the first touch sensing lines (SL1_L, SL1_R) can be reduced. As a result, the effect of reducing RC delay and decreasing noise ingress from the outside can be expected.

[0186] The embodiment illustrated in FIG. 17 differs from the embodiments illustrated in FIG. 15 and FIG. 16, in that the touch signal pads (TS-PD) are formed in the lower non-display area (NDA) of the display panel (DP), in that the touch signal pads (TS-PD) are formed in the upper non-display area (NDA) of the display panel (DP).

[0187] Touch signal pads (TS-PD) can be positioned opposite display signal pads (DP-PD) with a display area (DA) in between. As a result, the effect of reducing noise that may flow from the display signal pads (DP-PD) to the touch signal pads (TS-PD) can be expected.

[0188] FIG. 18 is a plan view of a display panel according to one embodiment of the present invention. FIG. 19 is a plan view of a touch detection unit according to one embodiment of the present invention.

[0189] The embodiment illustrated in FIG. 18 and FIG. 19 differs from the embodiment illustrated in FIG. 14 in that the multiplexer (MUX) is placed not only in the upper non-display area (NDA) of the display panel (DP) but also in the lower non-display area (NDA) of the display panel (DP).

[0190] Referring to FIG. 18, a plurality of multiplexers (MUX) may be placed in a non-display area (NDA). According to one embodiment of the present invention, multiplexers (MUX) may be placed in each of the upper and lower non-display areas (NDA) of a display panel (DP). For example, two multiplexers (MUX) may be placed around the upper corner of the display panel (DP) and two around the lower corner. However, this is exemplary and not limiting.

[0191] Referring to FIG. 19, the extension direction of the first touch sensing lines (SL1_T, SL1_B) may vary depending on whether they are connected to a touch electrode (TE_T) formed on the upper side or a touch electrode (TE_B) formed on the lower side relative to the horizontal centerline (L1) of the touch sensing unit (TS). For example, the first touch sensing lines (SL1_T) connected to the touch electrode (TE_T) formed on the upper side may extend from the lower side to the upper side, and the first touch sensing lines (SL1_B) connected to the touch electrode (TE_B) formed on the lower side may extend from the upper side to the lower side.

[0192] In the embodiment illustrated in FIGS. 18 and 19, the first touch sensing lines (SL1_T, SL1_B) are divided into two groups and connected to adjacent touch signal pads (TS-PD), so the wiring length of the first touch sensing lines (SL1_T, SL1_B) can be reduced. As a result, the effect of reducing RC delay and decreasing the ingress of external noise can be expected. In addition,

[0193] In addition, as the touch signal pads (TS-PD) are positioned in an area adjacent to the multiplexer (MUX), the sensing channels (SCH) can directly connect the touch signal pads (TS-PD) to the multiplexer (MUX) without diverting to another area. Since the wiring length of the sensing channels (SCH) is reduced, a reduction in RC delay and the probability of crosstalk can be expected.

[0194] Furthermore, if a multiplexer (MUX) is placed in the upper and lower non-display areas (NDA) of the display panel (DP), the extra space within the non-display area (NDA), that is, the space where no components are formed, can be utilized. In other words, the effect of reducing the dead space of the display panel (DP) can be expected.

[0195] Although the present invention has been described above with reference to embodiments thereof, those skilled in the art will understand that various modifications and changes can be made to the invention without departing from the spirit and scope of the invention as described in the following claims. Explanation of the symbols

[0196] DD: Display device DP: Display panel TS: Touch sensing unit CNT: Touch Contact Hole MUX: Multiplexer GCL: Gate control line SCH: Sensing channels SDC: Scan drive unit ST: Stage CLKL1, CLKL2: First and second clock signal lines STVL: Scan start signal line

Claims

Claim 1 A display device comprising: a display panel including pixels in a display area and a scan driver for driving the pixels in a non-display area; a touch sensing unit disposed on the display panel and including touch electrodes disposed in a sensing area and touch sensing lines connected to the touch electrodes; and at least one multiplexer disposed within the non-display area; wherein the touch sensing lines are electrically connected to an input terminal of the multiplexer through a touch contact hole formed in the display panel, and the sensing channels electrically connected to the output terminal of the multiplexer are parallel in an extension direction to the scan driver, and the scan driver is disposed between the multiplexer and the display area within the non-display area and does not overlap with the sensing channels when viewed on a plane, and the multiplexer is disposed between the sensing channels and the scan driver. Claim 2 A display device according to claim 1, wherein the multiplexer comprises a plurality of switching elements, and the display device further comprises gate control lines disposed on one side of the multiplexer and configured to control the switching elements. Claim 3 In claim 2, a display device in which the number of touch sensing lines is greater than the number of sensing channels. Claim 4 In claim 2, the sensing channels and the gate control lines are arranged on opposite sides with respect to the multiplexer in a display device. Claim 5 In claim 2, the gate control lines are arranged parallel to the extension direction of the sensing channels in a display device. Claim 6 In claim 2, the scan driving unit comprises a display device including stages that provide a scan signal to each of the pixels. Claim 7 A display device further comprising, in claim 6, scan control lines disposed on one side of the stages and configured to drive the stages. Claim 8 In claim 7, the scan control lines include a first clock signal line, a second clock signal line, and a scan start signal line, etc., in a display device. Claim 9 In claim 7, the scan control lines are a display device disposed between the sensing channels and the stages. Claim 10 A display device according to claim 9, comprising a second power supply voltage line extending parallel to the scan control lines, wherein the second power supply voltage supplied through the second power supply voltage line is a DC voltage. Claim 11 In claim 10, the second power supply voltage line is a display device positioned between the gate control lines and the scan control lines. Claim 12 In claim 10, the sensing channels are a display device positioned between the second power supply voltage line and the scan control lines. Claim 13 A display device according to claim 7, further comprising a touch driving voltage line and a touch ground voltage line between the multiplexer and the gate control lines. Claim 14 In claim 1, the touch sensing unit is a single-layer display device comprising a conductive layer and an insulating layer. Claim 15 In claim 14, the conductive layer comprises a display device including the touch electrode and the touch sensing lines. Claim 16 A display device according to claim 1, further comprising: touch signal pads formed in a first portion of the non-display area; display signal pads formed in a second portion of the non-display area; and scan control lines configured to control the scan driving unit; wherein the sensing channels are electrically connected to the touch signal pads, the scan control lines are electrically connected to the display signal pads, and the touch signal pads and the display signal pads are spaced apart from each other in a direction in which the display area and the scan driving unit are spaced apart. Claim 17 In claim 16, the display device further comprises: a multiplexer including a plurality of switching elements, and gate control lines disposed on one side of the multiplexer and configured to control the switching elements. Claim 18 In claim 17, the sensing channels and the gate control lines are arranged on opposite sides with respect to the multiplexer in a display device. Claim 19 A display device according to claim 18, comprising a second power supply voltage line connected to the display signal pad, wherein the gate control lines are arranged between the second power supply voltage line and the multiplexer. Claim 20 In claim 16, the scan control lines include a first clock signal line, a second clock signal line, and a scan start signal line, in a display device. Claim 21 A display device comprising: a display panel including pixels in a display area and a scan driver for driving the pixels in a non-display area; and a touch sensing unit disposed on the display panel and including touch electrodes disposed in a sensing area and touch sensing lines connected to the touch electrodes; wherein the non-display area includes at least one multiplexer, the touch sensing lines are electrically connected to an input terminal of the multiplexer through a touch contact hole formed in the display panel, and the sensing channels electrically connected to the output terminal of the multiplexer are parallel in an extension direction to the scan driver, the scan driver is disposed between the multiplexer and the display area within the non-display area and does not overlap with the sensing channels when viewed on a plane, and a second power voltage line is disposed between the sensing channels and the scan driver, parallel to the extension direction of the sensing channels and the extension direction of the scan driver. Claim 22 In claim 21, the display device further comprises: a multiplexer including a plurality of switching elements, and gate control lines disposed on one side of the multiplexer and configured to control the switching elements. Claim 23 In claim 22, the sensing channels and the gate control lines are arranged on opposite sides with respect to the multiplexer in a display device. Claim 24 A display device according to claim 23, further comprising a touch driving voltage line and a touch ground voltage line between the gate control lines and the multiplexer. Claim 25 In claim 21, the scan driving unit comprises stages that provide a scan signal to each of the pixels, wherein the display device further comprises scan control lines disposed on one side of the stages and configured to drive the stages, and wherein the scan control lines comprise a first clock signal line, a second clock signal line, and a scan start signal line. Claim 26 In claim 25, the scan control lines are a display device positioned between the second power voltage line and the stages. Claim 27 In claim 21, the display device wherein the second power supply voltage supplied through the second power supply voltage line is a DC voltage. Claim 28 An electronic device comprising the display device according to claim 1.

Images