Display device

Abstract

A display device is disclosed. A display device according to an exemplary embodiment of the present disclosure may include: a substrate; a light emitting diode included in the sub-pixel and including a first electrode and a second electrode; a driving voltage line including a reflective metal material; a first electrode connection pattern electrically connecting the driving voltage line and the first electrode, and including a transparent electrode material; a touch sensor electrode including a transparent electrode material; and a touch routing line electrically connected to the touch sensor electrode and disposed between the substrate and the touch sensor electrode.

Description

Technical Field

[0001] Exemplary embodiments of the present disclosure relate to a display device, and more particularly, for example but not limited to, to a light-emitting diode display device having a built-in touch sensor. Background Art

[0002] Recently, research and development have been conducted on light-emitting diode display devices using light-emitting diodes as sub-pixels of a light-emitting device.

[0003] Since light-emitting diodes have high light conversion efficiency, energy consumption is very low and the lifespan can be semi-permanent. In addition, if light-emitting diodes are used as the light-emitting device of sub-pixels, there is an advantage that a large-area display panel can be manufactured at low cost.

[0004] In addition, there is a directionality of touch technology in which a touch sensor is embedded or built into a display panel to reduce the thickness of the display device and facilitate manufacturing.

[0005] Descriptions provided in the background art section should not be assumed to be prior art merely because they are mentioned in the background art section or are associated with the descriptions in the background art section. Descriptions in the background art section may include information describing one or more aspects of the subject technology, and the descriptions in this section do not limit the present invention. Summary of the Invention

[0006] The inventors have recognized that due to various difficulties, in the related art, the operation of embedding a touch sensor into a display panel of a light-emitting diode display device has not actually been implemented. Therefore, exemplary embodiments of the present disclosure aim to provide a light-emitting diode display device having a built-in touch sensor.

[0007] Exemplary embodiments of the present disclosure may provide a light-emitting diode display device having a built-in touch sensor capable of transparent display.

[0008] Exemplary embodiments of the present disclosure may provide a light-emitting diode display device having a built-in touch sensor installed in a vehicle.

[0009] Exemplary embodiments of the present disclosure may provide a light-emitting diode display device having a built-in touch sensor capable of minimizing transmittance degradation.

[0010] Exemplary embodiments of the present disclosure provide a light-emitting diode display device having a built-in touch sensor, the light-emitting diode display device having an arrangement structure of touch routing lines capable of reducing a bezel.

[0011] Exemplary embodiments of the present disclosure may provide a light-emitting diode display device having a built-in touch sensor, which is easy to manufacture and can reduce weight by having a simple vertical structure.

[0012] Exemplary embodiments of the present disclosure provide a light-emitting diode display device having a built-in touch sensor, which has an arrangement structure of touch routing lines capable of reducing the influence between display driving and touch driving (in particular, display-touch crosstalk DTX, which is the influence of display driving on touch driving).

[0013] Exemplary embodiments of the present disclosure may provide a light-emitting diode display device having a built-in touch sensor for performing touch driving capable of reducing the influence between display driving and touch driving.

[0014] A display device according to an exemplary embodiment of the present disclosure may include: a substrate; a driving transistor included in a sub-pixel and including an active layer, a source electrode, a gate electrode, and a drain electrode; a light-emitting diode included in the sub-pixel and including a first electrode and a second electrode; a driving voltage line including a reflective metal material; a first electrode connection pattern electrically connecting the driving voltage line and the first electrode and including a transparent electrode material; a touch sensor electrode including a transparent electrode material; and a touch routing line electrically connected to the touch sensor electrode and disposed between the substrate and the touch sensor electrode.

[0015] A display device according to an exemplary embodiment of the present disclosure may further include a light-shielding pattern disposed between the substrate and the active layer and overlapping the active layer.

[0016] In a display device according to an exemplary embodiment of the present disclosure, the touch routing line may be disposed on the same layer as the light-shielding pattern.

[0017] A display device according to an exemplary embodiment of the present disclosure may further include a touch connection structure electrically connecting the touch sensor electrode and the touch routing line.

[0018] In a display device according to an exemplary embodiment of the present disclosure, the touch connection structure may include a first touch connection pattern including a reflective metal material.

[0019] In a display device according to an exemplary embodiment of the present disclosure, the touch connection structure may further include a second touch connection pattern disposed within a metal layer in which at least one of a gate electrode, a source electrode, and a drain electrode is disposed.

[0020] A driving period of a display device according to an exemplary embodiment of the present disclosure may include a display driving period and a display holding period. A touch driving signal may be applied to the touch sensor electrode during the display holding period.

[0021] In a display device according to an exemplary embodiment of the present disclosure, the touch routing line may include a reflective metal material.

[0022] When the display device according to an exemplary embodiment of the present disclosure is in a display-off state, a touch driving signal may be applied to the touch sensor electrode.

[0023] A display device according to an exemplary embodiment of the present disclosure may include a transparent area provided with a touch sensor electrode and a pixel area provided with a light-emitting diode.

[0024] A display device according to an exemplary embodiment of the present disclosure may be installed in a vehicle.

[0025] A display device according to an exemplary embodiment of the present disclosure may include: a substrate; a touch sensor including a plurality of touch sensor electrodes electrically connected to each other and including a transparent electrode material; a light-emitting diode including a first electrode and a second electrode; and a driving transistor including an active layer, a source electrode, a gate electrode, and a drain electrode.

[0026] The touch sensor may include a horizontal connection pattern connecting a plurality of touch sensor electrodes in a horizontal direction and including a transparent electrode material, and a vertical connection pattern connecting a plurality of touch sensor electrodes in a vertical direction and including an opaque metal material.

[0027] The horizontal connection pattern may be located on the vertical connection pattern.

[0028] Other detailed contents of the exemplary embodiment are included in the detailed description and the drawings.

[0029] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor may be provided.

[0030] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor capable of transparent display may be provided.

[0031] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor installed in a vehicle may be provided.

[0032] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor capable of minimizing transmittance degradation may be provided.

[0033] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor can be provided, which can reduce the bezel because the touch routing lines are connected to the pad unit across the display area (e.g., the display region) without detouring through the non-display area (e.g., the non-display region).

[0034] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor can be provided, which is easy to manufacture and can reduce weight by having a simple vertical structure.

[0035] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor can be provided, which has an arrangement structure of touch routing lines capable of reducing the influence between display driving and touch driving (especially display-to-touch crosstalk DTX, which is the influence of display driving on touch driving).

[0036] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor can be provided to perform touch driving capable of reducing the influence between display driving and touch driving.

[0037] The effects according to the present disclosure are not limited to those exemplified above, and various other effects are included in the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and other aspects, features, and other advantages of the present disclosure will be more clearly understood through the following detailed description in conjunction with the accompanying drawings, where:

[0039] Figure 1 is a system configuration diagram of a light-emitting diode display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure.

[0040] Figure 2 is an equivalent circuit of a sub-pixel in a light-emitting diode display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure.

[0041] Figure 3 、 Figure 4 and Figure 5 show a planar structure of a touch sensor unit included in a touch display panel according to an exemplary embodiment of the present disclosure.

[0042] Figure 6 shows a region where one touch sensor is formed in a touch display panel according to an exemplary embodiment of the present disclosure.

[0043] Figure 7 shows a region where one touch sensor electrode is formed in a touch display panel according to an exemplary embodiment of the present disclosure.

[0044] Figure 8 and Figure 9 is a cross-sectional view of a touch display panel according to an exemplary embodiment of the present disclosure.

[0045] Figure 10 and Figure 11 illustrates a driving timing diagram of a light-emitting diode display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure.

[0046] Throughout the drawings and the detailed description, unless otherwise described, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustration, and convenience, the relative sizes and descriptions of these elements may be exaggerated. Detailed Embodiments

[0047] Now, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. When assigning reference numerals to the components of each drawing, the same reference numerals are assigned to the same components even if they are shown in different drawings. Details of known technologies or functions may be skipped when it is determined that they make the subject matter of the present disclosure unclear. As used herein, when a component "comprises", "has", "includes", "contains" another component, or "is composed of", "made of", "formed by", "constituted by" another component, other components may be added to the component, unless the component "only" includes another component, "has" another component, or "is composed of" another component. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0048] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. When assigning reference numerals to the components of each drawing, the same reference numerals are assigned to the same components even if they are shown in different drawings. Details of known technologies or functions may be skipped when it is determined that they make the subject matter of the present disclosure unclear. As used herein, when a component "comprises", "has", "includes", "contains" another component, or "is composed of", "made of", "formed by", "constituted by" another component, other components may be added to the component, unless the component "only" includes another component, "has" another component, or "is composed of" another component. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0049] The shapes, sizes, dimensions (e.g., length, width, height, thickness, radius, diameter, area, etc.), ratios, angles, numbers, etc. of the elements shown in the drawings for describing the exemplary embodiments of the present disclosure are merely examples, and the present disclosure is not limited thereto. Throughout the specification, the same reference numerals generally denote the same elements.

[0050] The dimensions, including the size and thickness, of the various components shown in the drawings are presented for ease of description, and the present disclosure is not limited to the size and thickness of the components shown. However, it should be noted that the relative dimensions, including the relative size, position, and thickness, of the components shown in the respective drawings submitted here are part of the present disclosure.

[0051] When using terms such as "on", "above", "over", "under", "below", "beside", "beneath", "near", "close to", "adjacent to", "at the side of", "proximate to" to describe the positional relationship between two parts, one or more parts may be located between the two parts, unless such terms are used together with the terms "immediately" or "directly".

[0052] Spatially relative terms, such as "under", "below", "beneath", "lower", "above", "upper", etc., may be used herein to facilitate the description of the relationship of one element or feature to another element or feature as shown in the figures. It should be understood that, in addition to the orientation shown in the figures, spatially relative terms may also include different orientations of the element during use or operation. For example, if the element in the figure is inverted, the element described as "under" or "below" other elements or features will be oriented "above" the other elements or features. Thus, the exemplary term "below" may include both the below and above orientations. Similarly, the exemplary terms "above" or "over" may include both the "above" and "below" orientations.

[0053] When an element or layer is disposed "on" another element or layer, another layer or another element may be directly interposed on the other element or between the two elements or layers.

[0054] Designations such as "first", "second", "A", "B", "(a)", and "(b)" may be used to describe the components of the present disclosure. These designations are provided merely to distinguish one component from another, and the nature, order, or quantity of the components is not limited by the designations.

[0055] In addition, when describing the components of the present disclosure, terms such as first, second, A, B, (a), (b), etc. may be used herein. None of these terms is used to define the nature, order, or sequence of the corresponding component, but only to distinguish the corresponding component from other components.

[0056] When describing the positional relationship between components, when two or more components are described as "connected", "coupled" or "linked", the two or more components can be directly "connected", "coupled" or "linked", or other components can be interposed. Here, the other components can be included in one or more of the two or more components that are "connected", "coupled" or "linked" to each other.

[0057] When using terms such as "after", "then", "next" and "before" to describe the temporal flow relationship related to components, operation methods and manufacturing methods, a non - continuous relationship can be included, unless the terms "immediately" or "directly" are used.

[0058] When a component is assigned a value or its corresponding information (e.g., level), the value or corresponding information can be interpreted as including tolerances that may arise due to various factors (e.g., process factors, internal or external influences or noise).

[0059] It should be understood that the term "at least one" includes all combinations related to any one item. For example, "at least one of the first element, the second element and the third element" can include all combinations of more than two elements selected from the first element, the second element and the third element and each of the first element, the second element and the third element.

[0060] The term "device" used herein may refer to a display device including a display panel and a driver for driving the display panel. Examples of the display device may include light - emitting elements and the like. Additionally, examples of the device may include a laptop computer, a television, a computer monitor, an automotive device, a wearable device and an automotive equipment device, and complete products or final product sets of electronic devices (or equipment) or sets of devices (or equipment) respectively including light - emitting elements and the like, such as mobile electronic devices such as smartphones or electronic tablets, but the embodiments of the present disclosure are not limited thereto.

[0061] The features of the various exemplary embodiments of the present disclosure can be partially or completely attached to or combined with each other, and can be interlocked and operated in various technical ways, and the exemplary embodiments can be executed independently or in association with each other.

[0062] Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the exemplary embodiments belong. It will be further understood that terms, such as those defined in a common dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the related art, and should not be interpreted in an idealized or overly formal sense, unless explicitly so defined herein.

[0063] In aspects of the present disclosure, for ease of description, the source electrode and the drain electrode are distinguished from each other. However, the source electrode and the drain electrode may be used interchangeably. The source electrode may be the drain electrode, and the drain electrode may be the source electrode. In addition, the source electrode in any aspect of the present disclosure may be the drain electrode in another aspect of the present disclosure, and the drain electrode in any aspect of the present disclosure may be the source electrode in another aspect of the present disclosure.

[0064] Hereinafter, various exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0065] Figure 1 FIG. 1 is a system configuration diagram of a light emitting diode display device 100 with a built-in touch sensor according to an exemplary embodiment of the present disclosure.

[0066] Referring to Figure 1 FIG. 1, as a component for displaying an image, the light emitting diode display device 100 with a built-in touch sensor may include a touch display panel 110 and a display driving circuit.

[0067] The display driving circuit may be a circuit for driving display driving components included in the touch display panel 110 to display an image on the touch display panel 110, and may include a data driving circuit 120, a gate driving circuit 130, and a display controller 140.

[0068] The touch display panel 110 may include a display area AA for displaying an image, and may also include a non-display area that does not display an image. The non-display area may be an area adjacent to the display area. Further, the non-display area may be an area adjacent to the display area and configured to surround the display area. However, the present disclosure is not limited thereto.

[0069] For example, the non-display area may include a first non-display area located outside the display area in a first direction, a second non-display area located outside the display area in a second direction intersecting the first direction, a third non-display area located outside the display area in a direction opposite to the first direction, and a fourth non-display area located outside the display area in a direction opposite to the second direction.

[0070] As another example, the boundary area between the display area and the non-display area may be curved such that the non-display area may be located below the display area. In this case, when the user views the display device from the front, there may be little or no non-display area visible to the user.

[0071] Here, the non-display area may also be referred to as a border area. The touch display panel 110 may include a substrate SUB, a plurality of sub-pixels SP formed on the substrate SUB, and various signal lines.

[0072] A plurality of sub-pixels SP are the smallest units constituting the display area, and n sub-pixels SP form one pixel. Each of the plurality of sub-pixels SP can emit light having different wavelengths from each other. The plurality of sub-pixels can include a first sub-pixel, a second sub-pixel, and a third sub-pixel that emit light of different colors from each other. For example, the plurality of sub-pixels SP can include a red sub-pixel SP, a green sub-pixel SP, and a blue sub-pixel SP. According to this exemplary embodiment, at least some of the plurality of pixels can also include a white sub-pixel SP. The plurality of sub-pixels SP can be variously modified in color and configuration as needed. However, the present disclosure is not limited thereto.

[0073] For example, the plurality of sub-pixels SP can include a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the red sub-pixel, the green sub-pixel, and the blue sub-pixel can be arranged in a repeating manner. Alternatively, the plurality of sub-pixels SP can include a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel, and the red sub-pixel, the green sub-pixel, the blue sub-pixel, and the white sub-pixel can be arranged in a repeating manner, or the red sub-pixel, the green sub-pixel, the blue sub-pixel, and the white sub-pixel can be arranged in a quadrilateral type. For example, the red sub-pixel, the blue sub-pixel, and the green sub-pixel can be sequentially arranged along the row direction, or the red sub-pixel, the blue sub-pixel, the green sub-pixel, and the white sub-pixel can be sequentially arranged along the row direction. However, in the embodiments of the present disclosure, the color type, the arrangement type, and the arrangement order of the sub-pixels are not limited, and can be configured in various forms according to the light-emitting characteristics, the device lifetime, and the device specifications.

[0074] In addition, according to the light-emitting characteristics, the sub-pixels can have different light-emitting areas. For example, a sub-pixel that emits light of a color different from the color of the blue sub-pixel can have a light-emitting area different from the light-emitting area of the blue sub-pixel. For example, the red sub-pixel, the blue sub-pixel, and the green sub-pixel or the red sub-pixel, the blue sub-pixel, the white sub-pixel, and the green sub-pixel can each have a different light-emitting area.

[0075] Various types of signal lines can include a plurality of data lines for transmitting data signals (also referred to as data voltages or image signals) and a plurality of gate lines for transmitting gate signals (also referred to as scan signals). The plurality of data lines and the plurality of gate lines can cross each other.

[0076] Each of the plurality of data lines can be arranged while extending in a first direction. Each of the plurality of gate lines can be arranged while extending in a second direction. Here, the first direction can be the column direction, and the second direction can be the row direction. Alternatively, the first direction can be the row direction, and the second direction can be the column direction. Below, for the sake of convenience of description, it is assumed that the data lines are arranged along the column direction, and the gate lines are arranged along the row direction.

[0077] The data driving circuit 120 may be a circuit for driving data lines and may output data signals to the data lines. The gate driving circuit 130 may be a circuit for driving gate lines and may output gate signals to the gate lines. The display controller 140 may be a device for controlling the data driving circuit 120 and the gate driving circuit 130 and may control the driving timing for the data lines and the driving timing for the gate lines.

[0078] The display controller 140 may receive various timing signals and input image data including, for example, a vertical synchronization signal, a horizontal synchronization signal, an input data enable signal, a clock signal, etc. from an external device (e.g., a host system).

[0079] The display controller 140 may supply a data driving control signal to the data driving circuit 120 to control the data driving circuit 120 and may supply a gate driving control signal to the gate driving circuit 130 to control the gate driving circuit 130.

[0080] The data driving circuit 120 may supply data signals to a plurality of data lines according to the driving timing of the display controller 140. The data driving circuit 120 may receive image data in digital form from the display controller 140, convert the received image data into data signals in analog form, and output the converted signals to the plurality of data lines.

[0081] The gate driving circuit 130 may supply gate signals to a plurality of gate lines GL according to the timing control of the display controller 140. The gate driving circuit 130 may receive a first gate voltage corresponding to a conductive level voltage and a second gate voltage corresponding to a cut-off level voltage and various gate driving control signals (e.g., a start signal, a reset signal, etc.), generate gate signals, and supply the generated gate signals to the plurality of gate lines GL.

[0082] For example, the data driving circuit 120 may be connected to the touch display panel 110 by a tape automated bonding (TAB) method, or may be connected to the bonding pads of the touch display panel 110 by a chip on glass (COG) or chip on board (COP) method, or may be connected to the touch display panel 110 by a chip on film (COF) method. Hereinafter, for the sake of convenience of explanation, it is assumed that the data driving circuit 120 is connected to the touch display panel 110 as a chip on film (COF) type.

[0083] The gate driving circuit 130 can be connected to the touch display panel 110 using the tape automated bonding (TAB) method, or can be connected to the bonding pads of the touch display panel 110 using the chip on glass (COG) or chip on board (COP) method, or can be connected to the display panel 110 according to the chip on film (COF) method. Alternatively, the gate driving circuit 130 can be of the gate in panel (GIP) type and can be formed in the non-display area NA or the display area AA of the touch display panel 110. The gate driving circuit 130 can be disposed on the substrate SUB or connected to the substrate SUB.

[0084] In addition, at least one of the data driving circuit 120 and the gate driving circuit 130 can be disposed in the display area AA. For example, at least one of the data driving circuit 120 and the gate driving circuit 130 can be arranged not to overlap with the sub-pixels SP, or can be arranged to partially or fully overlap with the sub-pixels SP.

[0085] The data driving circuit 120 can be connected to one side (e.g., the upper side or the lower side) of the touch display panel 110. Depending on the driving method, the panel design method, etc., the data driving circuit 120 can be connected to both sides (e.g., the upper side and the lower side) of the touch display panel 110, or can be connected to two or more sides among the four sides of the touch display panel 110.

[0086] The gate driving circuit 130 can be connected to one side (e.g., the left side or the right side) of the touch display panel 110. Depending on the driving method, the panel design method, etc., the gate driving circuit 130 can be connected to both sides (e.g., the left side and the right side) of the touch display panel 110, or can be connected to two or more sides among the four sides of the touch display panel 110.

[0087] The display controller 140 can be implemented as a component separate from the data driving circuit 120, or can be implemented as an integrated circuit integrated with the data driving circuit 120. The display controller 140 can be a timing controller used in typical display technologies, or can be a control device capable of further performing other control functions including the timing controller, or can be a control device different from the timing controller, or can be a control device other than the timing controller, or can be a circuit within the control device. The display controller 140 can be implemented using various circuits or electronic components, such as an integrated circuit (IC), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a processor.

[0088] The display controller 140 may be mounted on a printed circuit board, a flexible printed circuit, etc., and may be electrically connected to the data driving circuit 120 and the gate driving circuit 130 through the printed circuit board or the flexible printed circuit. The display controller 140 may transmit and receive data to and from the data driving circuit 120 according to one or more predetermined interfaces. For example, the interface may include a low voltage differential signaling (LVDS) interface, an embedded clock point-to-point interface (EPI), or a serial peripheral interface (SPI).

[0089] In order to provide a touch sensing function in addition to the image display function, the light emitting diode display device 100 having a built-in touch sensor according to an exemplary embodiment of the present disclosure may include a touch sensor unit and a touch sensing circuit 150.

[0090] The touch sensor unit may include a plurality of touch sensors. Here, the touch sensor may also be referred to as a touch electrode.

[0091] The touch sensing circuit 150 may be a circuit that detects whether a touch has occurred due to a touch object such as a finger or a pen or detects a touch position by sensing all or part of the plurality of touch sensors included in the touch sensor unit. The touch sensing circuit 150 may include: a touch driving circuit 160 for sensing at least one of the plurality of touch sensors to generate touch sensing data; and a touch controller 170 capable of detecting the occurrence of a touch or a touch position using the touch sensing data.

[0092] In the light emitting diode display device 100 having a built-in touch sensor, the touch sensor unit may further include a plurality of touch routing lines for electrically connecting the plurality of touch sensors and the touch driving circuit 160. Here, the touch routing line may also be referred to as a touch line, an external routing line, or an external touch routing line.

[0093] One touch sensor may be composed of one touch sensor electrode.

[0094] Alternatively, one touch sensor may be composed of two or more touch sensor electrodes that are electrically connected. In this case, one touch sensor may further include a bridge that electrically connects the two or more touch sensor electrodes. Here, the bridge may also be referred to as a bridge pattern, a bridge electrode, a bridge line, an internal touch line, an internal touch routing line, or an internal routing line.

[0095] The touch display panel 110 may be a display panel in which a touch sensor is embedded or a display panel having a built-in touch sensor. That is, the touch sensor unit may be disposed inside the touch display panel 110. In this case, during the manufacturing process of the touch display panel 110, the touch sensor unit (e.g., touch sensor, touch routing line) may be formed together with electrodes or signal lines related to display driving.

[0096] The touch sensing circuit 150 in the light emitting diode display device 100 having a built-in touch sensor may perform touch sensing in a self-capacitance sensing mode and / or a mutual-capacitance sensing mode.

[0097] When the touch sensing circuit 150 performs touch sensing in the self-capacitance sensing mode, the touch sensing circuit 150 may perform touch sensing based on the capacitance between each touch electrode and a touch object (e.g., a finger, a pen, etc.).

[0098] To perform touch sensing in the self-capacitance sensing mode, the touch driving circuit 160 may supply a touch driving signal to at least one touch sensor among a plurality of touch sensors, and sense the at least one touch sensor to which the touch driving signal is supplied to generate touch sensing data. The touch controller 170 may use the touch sensing data to detect the self-capacitance or the change amount of the self-capacitance of the touch sensor, and determine the presence or absence of a touch and / or the touch coordinates based on the detection result.

[0099] If the touch sensing circuit 150 performs touch sensing in the mutual-capacitance sensing mode, the touch sensing circuit 150 may perform touch sensing based on the capacitance between touch sensors. According to the mutual-capacitance sensing mode, a plurality of touch sensors may be classified into transmitting touch sensors (also referred to as driving touch sensors) and receiving touch sensors (also referred to as sensing touch sensors) according to functions and roles.

[0100] To perform touch sensing in the mutual-capacitance sensing mode, the touch driving circuit 160 may drive at least one transmitting touch sensor and sense at least one receiving touch sensor to generate touch sensing data. The touch controller 170 may use the touch sensing data to detect the mutual-capacitance or the change amount of the mutual-capacitance between the transmitting touch sensor and the receiving touch sensor, and determine the presence or absence of a touch and / or the touch coordinates based on the detection result.

[0101] Each of the touch driving circuit 160 and the touch controller 170 may be implemented as a separate integrated circuit. Alternatively, the touch driving circuit 160 and the touch controller 170 may be implemented as a single integrated circuit.

[0102] In addition, each of the touch driving circuit 160 and the data driving circuit 120 may be implemented as a separate integrated circuit. Alternatively, the touch driving circuit 160 and the data driving circuit 120 may be implemented in an integrated manner. For example, if the light emitting diode display device 100 with a built-in touch sensor includes one driving integrated circuit chip, the one driving integrated circuit chip may include the touch driving circuit 160 and the data driving circuit 120. As another example, if the light emitting diode display device 100 with a built-in touch sensor includes a plurality of driving integrated circuit chips, each of the plurality of driving integrated circuit chips may include a part of the touch driving circuit 160 and a part of the data driving circuit 120.

[0103] The light emitting diode display device 100 with a built-in touch sensor may further include a power supply circuit that supplies various types of power to the display driving circuit and / or the touch sensing circuit.

[0104] The light emitting diode display device 100 with a built-in touch sensor according to an exemplary embodiment of the present disclosure may be a mobile terminal such as a smart phone or a tablet, or may be a monitor or a television (TV) of various sizes, and is not limited thereto, and may be various types and sizes of displays capable of displaying information or images. In some cases, the light emitting diode display device 100 with a built-in touch sensor according to an exemplary embodiment of the present disclosure may be a tiled display including a plurality of display panels 110.

[0105] The light emitting diode display device 100 with a built-in touch sensor may be a self-emitting display device, in which the touch display panel 110 emits light by itself. Accordingly, each of the plurality of sub-pixels SP in the touch display panel 110 may include various types of light emitting devices.

[0106] Figure 2 is an equivalent circuit of a sub-pixel in a light emitting diode display device with a built-in touch sensor according to an exemplary embodiment of the present disclosure.

[0107] Referring to Figure 2 , in the light emitting diode display device 100 with a built-in touch sensor according to an exemplary embodiment of the present disclosure, the touch display panel 110 may include a plurality of sub-pixels SP formed on a substrate SUB. Each of the plurality of sub-pixels SP may include a light emitting diode LED, a driving transistor DRT, a first scanning transistor SCT1, and a storage capacitor Cst.

[0108] The light-emitting diode LED can be a light-emitting device for each sub-pixel SP and can include a first electrode E1 and a second electrode E2. The light-emitting diode LED can also be referred to as a light-emitting diode chip. For example, the light-emitting diode LED can be a micro light-emitting diode (also referred to as a micro light-emitting diode chip) or a nano light-emitting diode (also referred to as a nano light-emitting diode chip) that uses an inorganic semiconductor compound to emit light. The light-emitting diode LED can have a length / width in micrometers or nanometers.

[0109] In the light-emitting diode LED, the first electrode E1 can be an anode electrode, and the second electrode E2 can be a cathode electrode. Alternatively, the first electrode E1 can be a cathode electrode, and the second electrode E2 can be an anode electrode. Hereinafter, for the sake of convenience of explanation, it is assumed that the first electrode E1 is an anode electrode and the second electrode E2 is a cathode electrode.

[0110] The first electrode E1 of the light-emitting diode LED can be electrically connected to the first power line VDDL. Accordingly, the first power voltage VDD can be applied to the first electrode E1 of the light-emitting diode LED through the first power line VDDL.

[0111] The second electrode E2 of the light-emitting diode LED can be electrically connected to the source node Ns of the driving transistor DRT.

[0112] The driving transistor DRT can be a transistor for driving the light-emitting diode LED and can include a gate node Ng, a source node Ns, and a drain node Nd. Here, the gate node Ng can be referred to as a gate electrode, the source node Ns can be referred to as a source electrode, and the drain node Nd can be referred to as a drain electrode.

[0113] The first scanning transistor SCT1 can control the connection between the gate node Ng of the driving transistor DRT and the data line DL through the scanning signal SC.

[0114] The first scanning transistor SCT1 can be turned on to transmit the data voltage VDATA to the gate node Ng of the driving transistor DRT.

[0115] The storage capacitor Cst can be used to hold a constant voltage for one frame and can be connected between the second electrode E2 of the light-emitting diode LED and the gate node Ng of the driving transistor DRT. Here, the second electrode E2 of the light-emitting diode LED can be electrically connected to the source node Ns of the driving transistor DRT, or can be the same node as the source node Ns of the driving transistor (DRT).

[0116] Refer to Figure 2, each of the plurality of sub-pixels SP may further include a second scanning transistor SCT2 connected between the second electrode E2 of the light-emitting diode LED and the reference voltage line RVL.

[0117] The second scanning transistor SCT2 may control the connection between the second electrode E2 of the light-emitting diode LED and the reference voltage line RVL through a scanning signal SC. Here, the second electrode E2 of the light-emitting diode LED may be electrically connected to the source node Ns of the driving transistor DRT, or may be the same node as the source node Ns of the driving transistor DRT.

[0118] Refer to Figure 2 , the gate nodes of the first scanning transistor SCT1 and the second scanning transistor SCT2 may be commonly connected to a scanning line SCL. Alternatively, the gate nodes of the first scanning transistor SCT1 and the second scanning transistor SCT2 may be connected to separate scanning lines SCL.

[0119] The light-emitting diode LED may include a first semiconductor layer SEMI1, a second semiconductor layer SEMI2, and an active layer AL. The first semiconductor layer SEMI1 may be formed on at least one upper surface of the second semiconductor layer SEMI2, and at least a part of the other upper surface of the second semiconductor layer SEMI2 may be exposed. The active layer AL may be interposed between the first semiconductor layer SEMI1 and the second semiconductor layer SEMI2. Here, the active layer AL may also be referred to as a light-emitting layer. The light-emitting diode LED may further include a first electrode E1 and a second electrode E2.

[0120] The first electrode E1 may be formed on the first semiconductor layer SEMI1 and may be electrically connected to the first semiconductor layer SEMI1. The second electrode E2 may be formed on the exposed second semiconductor layer SEMI2 and may be electrically connected to the second semiconductor layer SEMI2. The first electrode E1 and the second electrode E2 may be arranged to be spaced apart from each other by a predetermined interval.

[0121] The first semiconductor layer SEMI1 may be implemented as a p-type semiconductor layer.

[0122] The second semiconductor layer SEMI2 may be implemented as an n-type semiconductor layer.

[0123] The active layer AL may be a layer that emits light according to the difference in the bandgap of the energy band when the holes injected through the first semiconductor layer SEMI1 and the electrons injected through the second semiconductor layer SEMI2 meet each other, depending on the material forming the active layer AL.

[0124] The light-emitting diode LED may further include an insulating film PRT to protect the components of the light-emitting diode LED. The insulating film PRT may cover the exposed outer surface of the light-emitting diode LED, but may expose at least a part of the first electrode E1 and at least a part of the second electrode E2. The insulating film PRT may include an insulating material. For example, the insulating film PRT may be formed of one selected from a silicon oxide (SiOx) film and a silicon nitride (SiNx) film or a laminated structure thereof.

[0125] In addition, the touch display panel 110 may include an electrode electrically connected to the first electrode E1 of the light-emitting diode LED and an electrode electrically connected to the second electrode E2 of the light-emitting diode LED.

[0126] The touch display panel 110 may further include a second power line BVL for supplying a second power voltage VSS to the drain node Nd of the driving transistor DRT. The second power line BVL may be electrically connected to the drain node Nd of the driving transistor DRT.

[0127] In addition, for another example, the light-emitting diode LED may be an organic light-emitting diode (OLED) including an organic light-emitting layer between the first electrode E1 and the second electrode E2.

[0128] The first scanning transistor SCT1 may be connected between the gate node Ng of the driving transistor DRT and the corresponding data line DL, and may control the voltage state of the gate node Ng of the driving transistor DRT.

[0129] The first scanning transistor SCT1 may control the connection between the gate node Ng of the driving transistor DRT and the data line DL according to a scanning signal SC supplied from a corresponding scanning line SCL among a plurality of scanning lines SCL, where the scanning line SCL is a type of strobe line.

[0130] The drain node or source node of the first scanning transistor SCT1 may be electrically connected to the corresponding data line DL. The source node or drain node of the first scanning transistor SCT1 may be electrically connected to the gate node Ng of the driving transistor DRT. The gate node of the first scanning transistor SCT1 may be electrically connected to the scanning line SCL to receive the scanning signal SC.

[0131] The first scanning transistor SCT1 may be turned on by a scanning signal SC of a conductive level voltage, and may transmit a data voltage VDATA supplied from the corresponding data line DL to the gate node Ng of the driving transistor DRT.

[0132] The first scanning transistor SCT1 can be turned on by a scanning signal SC with a conductive level voltage and can be turned off by a scanning signal SC with a cut-off level voltage. Here, if the first scanning transistor SCT1 is an n-type transistor, the conductive level voltage can be a high-level voltage, and the cut-off level voltage can be a low-level voltage. As Figure 2 shown, if the first scanning transistor SCT1 is a p-type transistor, the conductive level voltage can be a low-level voltage, and the cut-off level voltage can be a high-level voltage.

[0133] The second scanning transistor SCT2 can be connected between the source node Ns of the driving transistor DRT and the corresponding reference voltage line RVL and can control the voltage state of the source node Ns of the driving transistor DRT.

[0134] The second scanning transistor SCT2 can control the connection between the source node Ns of the driving transistor DRT and the reference voltage line RVL according to the scanning signal SC supplied from the scanning line SCL, where the scanning line SCL is a type of strobe line.

[0135] The drain node or source node of the second scanning transistor SCT2 can be electrically connected to the corresponding reference voltage line RVL. The source node or drain node of the second scanning transistor SCT2 can be electrically connected to the source node Ns of the driving transistor DRT. The gate node of the second scanning transistor SCT2 can be electrically connected to the scanning line SCL and receive the scanning signal SC.

[0136] The second scanning transistor SCT2 can be turned on by a scanning signal SC with a conductive level voltage and can transfer the reference voltage VREF supplied from the corresponding reference voltage line RVL to the source node Ns of the driving transistor DRT.

[0137] The second scanning transistor SCT2 can be turned on by a scanning signal SC with a conductive level voltage and can be turned off by a scanning signal SC with a cut-off level voltage. Here, if the second scanning transistor SCT2 is an n-type, the conductive level voltage can be a high-level voltage, and the cut-off level voltage can be a low-level voltage. As Figure 2 shown, if the second scanning transistor SCT2 is a p-type, the conductive level voltage can be a low-level voltage, and the cut-off level voltage can be a high-level voltage.

[0138] The storage capacitor Cst can be an external capacitor intentionally designed outside the driving transistor DRT instead of a parasitic capacitor (e.g., Cgs, Cgd) that may exist between the gate node Ng and the source node Ns of the driving transistor DRT.

[0139] Each of the driving transistor DRT, the first scanning transistor SCT1, and the second scanning transistor SCT2 may be an n-type transistor or a p-type transistor.

[0140] As Figure 2 shown, each sub-pixel SP may have a 3T (transistor)-1C (capacitor) structure including three transistors DRT, SCT1, and SCT2 and one capacitor Cst, and in some cases, may further include one or more transistors or one or more capacitors. However, the present disclosure is not limited thereto. Each sub-pixel may further include a compensation circuit. In this case, the sub-pixel may have various structures such as 4T2C, 5T2C, 6T1C, 6T2C, 7T1C, and 7T2C.

[0141] Each of the transistors in each sub-pixel may include a gate electrode, a source electrode, and a drain electrode. Since the source electrode and the drain electrode may change according to the voltage applied to the gate electrode and the current direction and are not fixed, either the source electrode or the drain electrode may be represented as the first electrode, and the other may be represented as the second electrode.

[0142] The light-emitting diode display device 100 having a built-in touch sensor may have a top-emission structure in which light is emitted in a direction opposite to the substrate SUB of the touch display panel 110.

[0143] Figures 3 to 5 The planar structure of the touch sensor unit included in the touch display panel 110 according to an exemplary embodiment of the present disclosure is shown.

[0144] Referring Figure 3 , the touch sensor unit included in the touch display panel 110 may include a plurality of touch sensors TS and a plurality of touch routing lines TR.

[0145] The plurality of touch sensors TS may include a plurality of first touch sensors TS_TX and a plurality of second touch sensors TS_RX.

[0146] A plurality of first touch sensors TS_TX and a plurality of second touch sensors TS_RX may intersect each other. For example, each of the plurality of first touch sensors TS_TX may be disposed while extending in a row direction (e.g., a horizontal direction), and each of the plurality of second touch sensors TS_RX may be disposed while extending in a column direction (e.g., a vertical direction). Alternatively, each of the plurality of first touch sensors TS_TX may be disposed while extending in a column direction (e.g., a vertical direction), and each of the plurality of second touch sensors TS_RX may be disposed while extending in a row direction (e.g., a horizontal direction). However, hereinafter, for ease of explanation, it is assumed that each of the plurality of first touch sensors TS_TX is disposed while extending in a row direction (e.g., a horizontal direction), and each of the plurality of second touch sensors TS_RX is disposed while extending in a column direction (e.g., a vertical direction).

[0147] A plurality of touch routing lines TR may be wirings or lines (e.g., touch lines) for electrical connection between the plurality of touch sensors TS and the pad unit PU. Here, the pad unit PU may include a plurality of pads electrically connected to the touch driving circuit 160.

[0148] The plurality of touch routing lines TR may include a plurality of first touch routing lines TR_TX for electrical connection between the plurality of first touch sensors TS_TX and the pad unit PU, and a plurality of second touch routing lines TR_RX for electrical connection between the plurality of second touch sensors TS_RX and the pad unit PU. Each of the plurality of first touch routing lines TR_TX may extend in a column direction (or a row direction) and may be connected to the pad unit PU. Each of the plurality of second touch routing lines TR_RX may extend in a column direction (or a row direction) and may be connected to the pad unit PU.

[0149] The touch sensor unit according to an exemplary embodiment of the present disclosure may be a mutual capacitance sensing-based touch sensor unit such as Figure 3 an example of the like.

[0150] In this case, the plurality of first touch sensors TS_TX may be a plurality of transmitting touch sensors, and the plurality of second touch sensors TS_RX may be a plurality of receiving touch sensors. The plurality of first touch routing lines TR_TX may be a plurality of transmitting touch routing lines, and the plurality of second touch routing lines TR_RX may be a plurality of receiving touch routing lines.

[0151] Accordingly, hereinafter, the plurality of first touch sensors TS_TX may also be referred to as a plurality of transmitting touch sensors, and the plurality of second touch sensors TS_RX may also be referred to as a plurality of receiving touch sensors. The plurality of first touch routing lines TR_TX may also be referred to as a plurality of transmitting touch routing lines, and the plurality of second touch routing lines TR_RX may also be referred to as a plurality of receiving touch routing lines. However, the present disclosure is not limited thereto. The plurality of first touch sensors may be a plurality of receiving touch sensors, and the plurality of second touch sensors may be a plurality of transmitting touch sensors. The plurality of first touch routing lines may be a plurality of receiving touch routing lines, and the plurality of second touch routing lines may be a plurality of transmitting touch routing lines.

[0152] If the touch sensor unit according to an exemplary embodiment of the present disclosure is a mutual capacitance sensing-based touch sensor unit, the touch driving circuit 160 may supply a touch driving signal to at least one of the plurality of transmitting touch sensors TS_TX through at least one of the plurality of transmitting touch routing lines TR_TX, and the touch driving circuit 160 may sense all or part of the plurality of receiving touch sensors TS_RX through all or part of the plurality of receiving touch routing lines TR_RX.

[0153] The signal sensed by the touch driving circuit 160 of all or part of the plurality of receiving touch sensors TS_RX may be a signal corresponding to the mutual capacitance between all or part of the plurality of receiving touch sensors TS_RX and at least one transmitting touch sensor TS_TX.

[0154] In the touch sensor unit, if each transmitting touch sensor TS_TX is disposed while extending in the row direction, and each receiving touch sensor TS_RX is disposed while extending in the column direction, each of the plurality of transmitting touch routing lines TR_TX may be disposed around the outer periphery by being connected to the end of each of the plurality of transmitting touch sensors TS_TX. In this case, each of the plurality of transmitting touch routing lines TR_TX may not overlap with another touch sensor TS. Instead, as Figure 3 shown, each of the plurality of transmitting touch routing lines TR_TX may extend while overlapping with the receiving touch sensor TS_RX and may be connected to the pad unit PU.

[0155] Accordingly, all the touch routing lines TR may be arranged to directly extend to the pad unit PU by passing through the display area AA, without being connected to the pad unit PU by detouring or bypassing along the left and right outer areas of the display area AA. This arrangement structure of the touch routing lines TR may be referred to as an internal routing structure.

[0156] Compared with Figure 3Differently, in the touch sensor unit, if each transmitting touch sensor TS_TX is set to extend in the column direction and each receiving touch sensor TS_RX is set to extend in the row direction according to the internal routing structure, each of the plurality of receiving touch routing lines TR_RX can be connected to the pad unit PU while extending to overlap with the transmitting touch sensor TS_TX.

[0157] According to the internal routing structure as described above, each of the plurality of transmitting touch routing lines TR_TX extends and is connected to the pad unit PU while overlapping with the receiving touch sensor TS_RX, or each of the plurality of receiving touch routing lines TR_RX extends and is connected to the pad unit PU while overlapping with the transmitting touch sensor TS_TX, and the touch routing line TR may not be provided on the three-side outer surface of the touch sensor unit. Therefore, according to the internal routing structure, the size of the bezel can be significantly reduced.

[0158] Figure 4 Another planar structure of the touch sensor unit included in the touch display panel 110 according to an exemplary embodiment of the present disclosure is shown.

[0159] Referring to Figure 4 , the touch sensor unit included in the touch display panel 110 may include a plurality of touch sensors TS and a plurality of touch routing lines TR.

[0160] The plurality of touch sensors TS may be arranged to be spaced apart from each other.

[0161] The plurality of touch routing lines TR may electrically connect each of the plurality of touch sensors TS to the pad unit PU. Each of the plurality of touch routing lines TR may extend in the column direction (or row direction) and may be connected to the pad unit PU. Each of the plurality of touch routing lines TR may overlap with two or more touch sensors TS, which may correspond to the internal routing structure described above.

[0162] The touch sensor unit according to an exemplary embodiment of the present disclosure may be a self-capacitance sensing-based touch sensor unit such as Figure 4 an example of

[0163] If the touch sensor unit according to an exemplary embodiment of the present disclosure is a self-capacitance sensing-based touch sensor unit, the touch driving circuit 160 may provide a touch driving signal to at least one of the plurality of touch sensors TS through at least one of the plurality of touch routing lines TR, and the touch driving circuit 160 may sense the touch sensor TS supplied with the touch driving signal through the corresponding touch routing line TR.

[0164] A signal sensed by a touch driving circuit 160 of at least one touch sensor TS may be a signal corresponding to a self - capacitance between at least one touch sensor TS and a touch object (e.g., a finger, a pen).

[0165] Figure 5 FIG. shows another planar structure of a touch sensor unit included in a touch display panel 110 according to an exemplary embodiment of the present disclosure, and Figure 6 shows a region where one touch sensor TS is formed in a touch display panel according to an exemplary embodiment of the present disclosure.

[0166] Figure 5 The touch sensor unit shown in FIG. according to an exemplary embodiment of the present disclosure is another example of a touch sensor unit based on mutual capacitance sensing.

[0167] Referring to Figure 5 , a touch display panel 110 according to an exemplary embodiment of the present disclosure may include a plurality of touch sensors TS and a plurality of touch routing lines TR.

[0168] A touch display panel 110 according to an exemplary embodiment of the present disclosure may include a plurality of pads PAD and a pad unit PU. A plurality of touch routing lines TR may electrically connect a plurality of touch sensors TS and a plurality of pads PAD.

[0169] Referring to Figure 5 , a plurality of touch sensors TS may include a plurality of first touch sensors TS_TX and a plurality of second touch sensors TS_RX. A plurality of touch routing lines TR may include a plurality of first touch routing lines TR_TX and a plurality of second touch routing lines TR_RX.

[0170] Referring to Figure 5 , a plurality of first touch sensors TS_TX may be arranged in a matrix form. Thus, a plurality of first touch sensors TS_TX may constitute two or more first touch sensor rows and may constitute two or more first touch sensor columns.

[0171] Referring to Figure 5 , each of a plurality of second touch sensors TS_RX may be disposed between two adjacent first touch sensor columns.

[0172] Referring to Figure 5 , among a plurality of first touch sensors TS_TX, the first touch sensors TS_TX disposed in the same row may be electrically connected to each other through a first touch routing line TR_TX and a first connection line CL_TX.

[0173] Referring to Figure 5 and Figure 6, each of the plurality of first touch sensors TS_TX may be configured in a grid form including a plurality of touch sensor electrodes TSE electrically connected to each other.

[0174] Referring to Figure 5 and Figure 6 , each of the plurality of first touch sensors TS_TX may include a horizontal connection pattern CL_H that connects the plurality of touch sensor electrodes TSE in a horizontal direction (e.g., row direction) through a plurality of horizontal connection contact holes CNT_H and a vertical connection pattern CL_V that connects the plurality of touch sensor electrodes TSE in a vertical direction (e.g., column direction) through at least one vertical connection contact CNT_V.

[0175] Referring to Figure 6 , the horizontal connection pattern CL_H may also be referred to as a parallel connection pattern, and the vertical connection pattern CL_V may also be referred to as an orthogonal connection pattern.

[0176] Referring to Figure 6 , for example, the horizontal connection pattern CL_H may include a transparent electrode material, and the vertical connection pattern CL_V may include an opaque metal material.

[0177] Referring to Figure 5 and Figure 6 , the vertical connection pattern CL_V may be a part of the touch routing line TR. Alternatively, the vertical connection pattern CL_V may be separately configured from the touch routing line TR.

[0178] Referring to Figure 5 , not only the plurality of first touch sensors TS_TX but also the plurality of second touch sensors TS_RX may be configured in a grid form including a plurality of touch sensor electrodes TSE electrically connected to each other.

[0179] Referring to Figure 5 , if the touch sensor unit according to an exemplary embodiment of the present disclosure is a mutual capacitance sensing-based touch sensor unit, the first touch sensors TS_TX arranged in the same row among the plurality of first touch sensors TS_TX may be electrically connected to form a transmit touch sensor line (or a receive touch sensor line), and each of the plurality of second touch sensors TS_RX may form a receive touch sensor line (or a transmit touch sensor line).

[0180] Referring to Figure 5 , in the light emitting diode display device 100 having a built-in touch sensor according to an exemplary embodiment of the present disclosure, the touch routing line TR may be connected to the pad unit across the display area (e.g., display area AA) without detouring through the non-display area (e.g., non-display area NA). According to this touch routing structure, the size of the non-display area (i.e., the bezel) can be reduced.

[0181] Figure 7 Shows a region where a touch sensor electrode TSE is formed in the touch display panel 110 according to an exemplary embodiment of the present disclosure.

[0182] Referring to Figure 7 , in the touch display panel 110 according to an exemplary embodiment of the present disclosure, the region where a touch sensor electrode TSE is formed may include a transparent region TA provided with a touch sensor electrode TSE and pixel regions PA1 and PA2 provided with at least one light-emitting diode LED. Here, the transparent region TA may also be referred to as a transmissive region.

[0183] The transparent region TA may be a region where light can penetrate or transmit through the display panel 110, and may mean a region where light can be transmitted from the front (or back) of the display panel 110 to the back (or front). An opaque metal may not be located in the transparent region TA.

[0184] The region excluding the transparent region TA may be a non-transparent region, and the non-transparent region may include pixel regions PA1 and PA2 provided with sub-pixels SP for display. The pixel regions PA1 and PA2 may include light-emitting devices and transistors included in each sub-pixel SP, and may include a light-emitting region where light is emitted by the light-emitting device. The transistor may be a thin-film transistor TFT.

[0185] The active layer of the thin-film transistor TFT may be formed of a semiconductor material, such as an oxide semiconductor, an amorphous semiconductor, or a polycrystalline semiconductor, but is not limited thereto.

[0186] The oxide semiconductor material may have an excellent effect of preventing leakage current and a relatively low manufacturing cost. The oxide semiconductor may be made of a metal oxide such as zinc (Zn), indium (In), gallium (Ga), tin (Sn), and titanium (Ti), or a combination of a metal such as zinc (Zn), indium (In), gallium (Ga), tin (Sn), or titanium (Ti) and its oxide. Specifically, the oxide semiconductor may include zinc oxide (ZnO), zinc tin oxide (ZTO), zinc indium oxide (ZIO), indium oxide (InO), titanium oxide (TiO), indium gallium zinc oxide (IGZO), indium zinc tin oxide (IZTO), indium zinc oxide (IZO), indium gallium tin oxide (IGTO), and indium gallium oxide (IGO), but is not limited thereto.

[0187] The polycrystalline semiconductor material has a fast moving speed of carriers such as electrons and holes, and thus has a high mobility, and has low power consumption and excellent reliability. The polycrystalline semiconductor may be made of polycrystalline silicon (poly-Si), but is not limited thereto.

[0188] The amorphous semiconductor material can be made of amorphous silicon (a-Si), but is not limited thereto.

[0189] Accordingly, since the region forming a touch sensor electrode TSE includes a transparent region TA where a touch sensor electrode TSE is provided, the light-emitting diode display device 100 having a built-in touch sensor according to an exemplary embodiment of the present disclosure can be implemented as a transparent display device.

[0190] Referring to Figure 7 , a vertical connection pattern CL_V can be provided on one side of the transparent region TA. The vertical connection pattern CL_V can be vertically connected to the touch sensor electrode TSE through a vertical connection contact CNT_V. The vertical connection pattern CL_V can include an opaque metal material.

[0191] Referring to Figure 7 , a first pixel region PA1 and a second pixel region PA2 can exist around the transparent region TA where a touch sensor electrode TSE is provided. Two sub-pixels SP can be provided in the first pixel region PA1, and one sub-pixel SP can be provided in the second pixel region PA2.

[0192] For example, the two sub-pixels SP provided in the first pixel region PA1 and the one sub-pixel SP provided in the second pixel region PA2 can include a red sub-pixel that emits red light, a green sub-pixel that emits green light, and a blue sub-pixel that emits blue light.

[0193] Figure 8 And Figure 9 are cross-sectional views of a touch display panel 110 according to an exemplary embodiment of the present disclosure.

[0194] Referring to Figure 8 And Figure 9 , the touch display panel 110 according to an exemplary embodiment of the present disclosure can include a transparent region TA that can transmit light and a non-transparent region NTA that cannot transmit light. In addition, the non-transparent region NTA can include a pixel region PA where sub-pixels SP are provided.

[0195] Light-emitting diodes LED, driving transistors DRT, and storage capacitors Cst included in the sub-pixels SP can be provided in the pixel region PA. In addition, various lines can also be provided in the pixel region PA. Here, the various lines can include a first power line VDDL, data lines, and the like.

[0196] Referring to Figure 8 And Figure 9 , the touch display panel 110 according to an exemplary embodiment of the present disclosure can include a substrate SUB, a driving transistor DRT, a light-emitting diode LED, a first power line VDDL, and the like.

[0197] The driving transistor DRT may be included in the sub-pixel SP and may include an active layer ACT, a source electrode S, a gate electrode G, and a drain electrode.

[0198] The light-emitting diode LED may be included in the sub-pixel SP and may include a first electrode E1 and a second electrode E2.

[0199] The first power line VDDL may be a wiring for transmitting a first power signal (first power voltage) VDD to the light-emitting diode LED and may include a reflective metal material.

[0200] Referring to Figure 8 and Figure 9 , the touch display panel 110 according to an exemplary embodiment of the present disclosure may include a first electrode connection pattern CP_E1 that electrically connects the first power line VDDL and the first electrode E1 of the light-emitting diode LED.

[0201] The first electrode connection pattern CP_E1 may include a transparent electrode material disposed within the transparent electrode layer.

[0202] Referring to Figure 8 and Figure 9 , the touch display panel 110 according to an exemplary embodiment of the present disclosure may include a touch sensor electrode TSE included in the touch sensor TS and a touch routing line TR electrically connected to the touch sensor electrode TSE.

[0203] The touch sensor electrode T may be disposed in the transparent area TA. In this case, the touch sensor electrode TSE may include a transparent electrode material. The touch routing line TR may be disposed in the non-transparent area NTA. The area of the non-transparent area NTA where the touch routing line TR is disposed may be an area different from the pixel area PA or may be an area overlapping with the pixel area PA.

[0204] A part of the touch sensor electrode TSE may extend from the transparent area TA to the non-transparent area NTA and may be electrically connected to the touch routing line TR disposed in the non-transparent area NTA.

[0205] Alternatively, a part of the touch routing line TR or an electrical pattern (e.g., CP_TSE, RP_TS, CP3_TR, CP2_TR, CP1_TR, etc.) connected thereto may extend from the non-transparent area NTA to the transparent area TA and may be electrically connected to the touch sensor electrode TSE disposed in the transparent area TA.

[0206] Referring to Figure 8 and Figure 9, the touch sensor electrode TSE may include a transparent electrode material disposed within the transparent electrode layer. The touch routing line TR may be disposed between the substrate SUB and the touch sensor electrode TSE.

[0207] Referring to Figure 8 and Figure 9 , the touch display panel 110 according to an exemplary embodiment of the present disclosure may further include a first display connection pattern RP_S that electrically connects the source electrode or the drain electrode of the driving transistor DRT and the second electrode E2 and includes a reflective metal material.

[0208] Referring to Figure 8 and Figure 9 , the touch display panel 110 according to an exemplary embodiment of the present disclosure may further include a storage capacitor Cst, the storage capacitor Cst including a first capacitor electrode CAPE1 and a second capacitor electrode CAPE2 that overlap each other.

[0209] The first capacitor electrode CAPE1 may be the gate electrode of the driving transistor DRT or a pattern electrically connected to the gate electrode of the driving transistor DRT.

[0210] The second capacitor electrode CAPE2 may be the source electrode of the driving transistor DRT or a pattern electrically connected to the source electrode of the driving transistor DRT. The second capacitor electrode CAPE2 may overlap the first capacitor electrode CAPE1. For example, the second capacitor electrode CAPE2 may overlap at least a portion of the gate electrode G of the driving transistor DRT.

[0211] Referring to Figure 8 and Figure 9 , the storage capacitor Cst may be disposed on the driving transistor DRT and may overlap the driving transistor DRT.

[0212] Referring to Figure 8 and Figure 9 , the storage capacitor Cst may overlap at least a portion of the active layer of the driving transistor DRT and may also overlap at least a portion of the source electrode of the driving transistor DRT.

[0213] Referring to Figure 8 and Figure 9 , the touch display panel 110 according to an exemplary embodiment of the present disclosure may further include a light-shielding pattern LS, the light-shielding pattern LS being disposed between the substrate SUB and the active layer ACT and overlapping the active layer ACT.

[0214] Referring to Figure 8 , in the touch display panel 110 according to an exemplary embodiment of the present disclosure, the touch routing line TR may be disposed on the same layer as the light-shielding pattern LS.

[0215] Reference Figure 8 Figure 8 , the touch display panel 110 according to an exemplary embodiment of the present disclosure may further include a touch connection structure electrically connecting the touch sensor electrodes TSE and the touch routing lines TR.

[0216] Reference Figure 8 Figure 8 , the touch connection structure included in the touch display panel 110 according to an exemplary embodiment of the present disclosure may include a first touch connection pattern RP_TS, and the first touch connection pattern RP_TS includes a reflective metal material.

[0217] Reference Figure 8 Figure 8 , the touch connection structure included in the touch display panel 110 according to an exemplary embodiment of the present disclosure may further include second touch connection patterns CP1_TR, CP2_TR, and CP3_TR provided in a metal layer, and at least one of a gate electrode, a source electrode, and a drain electrode is provided in the metal layer.

[0218] Reference Figure 9 Figure 9 , in the touch display panel 110 according to an exemplary embodiment of the present disclosure, the touch routing lines TR may include a reflective metal material.

[0219] Reference Figure 9 Figure 9 , the touch routing lines TR may be provided on the same layer as the first power line VDDL and the first display connection pattern RP_S.

[0220] Reference Figure 8 and Figure 9 Figure 9 , a vertical stacking structure for the touch display panel 110 according to an exemplary embodiment of the present disclosure will be described.

[0221] The light shielding pattern LS may be provided on the substrate SUB.

[0222] The buffer layer BUF may be provided on the light shielding pattern LS. The buffer layer BUF may be made of an insulating material. For example, the buffer layer BUF may be configured to be a single layer or multiple layers made of at least one of silicon nitride (SiNx), silicon oxide (SiOx), and silicon oxynitride (SiON). For example, the buffer layer BUF may be formed by a single layer or multiple layers of an inorganic film. For example, the single layer of inorganic film may be a silicon oxide (SiOx) film or a silicon nitride (SiNx) film, and the multiple layers of inorganic film may be formed by alternately stacking one or more layers of silicon oxide (SiOx) film, one or more layers of silicon nitride (SiNx) film, and one or more layers of amorphous silicon (a-Si), but the present disclosure is not limited thereto. However, depending on the structure or characteristics of the display device, the buffer layer BUF may not be included.

[0223] The active layer ACT may be provided on the buffer layer BUF.

[0224] The gate insulating film GI can be provided on the active layer ACT. The active layer ACT can overlap with the whole or a part of the light-shielding pattern LS.

[0225] The gate insulating film GI can be configured as a single layer or multiple layers made of silicon nitride (SiNx) or silicon oxide (SiOx). For example, the gate insulating film GI can be formed by a single layer or multiple layers of inorganic films. For example, the single layer of inorganic film can be a silicon oxide (SiOx) film or a silicon nitride (SiNx) film, and the multiple layers of inorganic films can be formed by alternately laminating one or more layers of silicon oxide (SiOx) films, one or more layers of silicon nitride (SiNx) films, and one or more layers of amorphous silicon (a-Si), but the present disclosure is not limited thereto.

[0226] The gate electrode G of the driving transistor DRT can be provided on the gate insulating film GI. The gate electrode G can overlap with a part of the active layer ACT. The gate electrode G can correspond to the first capacitor electrode CAPE1 of the storage capacitor Cst.

[0227] The first interlayer insulating film ILD1 can be provided on the gate electrode G.

[0228] The first interlayer insulating film ILD1 can be configured as a single layer or multiple layers made of silicon nitride (SiNx) or silicon oxide (SiOx). For example, the first interlayer insulating film ILD1 can be formed by a single layer or multiple layers of inorganic films. For example, the single layer of inorganic film can be a silicon oxide (SiOx) film or a silicon nitride (SiNx) film, and the multiple layers of inorganic films can be formed by alternately laminating one or more layers of silicon oxide (SiOx) films, one or more layers of silicon nitride (SiNx) films, and one or more layers of amorphous silicon (a-Si), but the present disclosure is not limited thereto.

[0229] The second capacitor electrode CAPE2 can be provided on the first interlayer insulating film ILD1. The second capacitor electrode CAPE2 can overlap with the first capacitor electrode CAPE1. The first capacitor electrode CAPE1 and the second capacitor electrode CAPE2 can form the storage capacitor Cst.

[0230] The second interlayer insulating film ILD2 can be provided on the second capacitor electrode CAPE2.

[0231] The second interlayer insulating film ILD2 can be configured as a single layer or multiple layers made of silicon nitride (SiNx) or silicon oxide (SiOx). For example, the second interlayer insulating film ILD2 can be formed by a single layer or multiple layers of inorganic films. For example, the single-layer inorganic film can be a silicon oxide (SiOx) film or a silicon nitride (SiNx) film, and the multi-layer inorganic film can be formed by alternately laminating one or more layers of silicon oxide (SiOx) films, one or more layers of silicon nitride (SiNx) films, and one or more layers of amorphous silicon (a-Si), but the present disclosure is not limited thereto.

[0232] The source electrode S can be disposed on the second interlayer insulating film ILD2. The drain electrode can also be disposed on the second interlayer insulating film ILD2.

[0233] Referring to Figure 2 the equivalent circuit of the sub-pixel SP, the source electrode S corresponding to the source node Ns of the driving transistor DRT can be electrically connected to one of the two capacitor electrodes CAPE1 and CAPE2 included in the storage capacitor Cst, and can be electrically connected to the second electrode E2 of the light-emitting diode LED.

[0234] Referring to Figure 8 and Figure 9 , a part of the source electrode S of the driving transistor DRT can be connected to a part of the active layer ACT through the contact holes of the second interlayer insulating film ILD2, the first interlayer insulating film ILD1, and the gate insulating film GI.

[0235] In addition, another part of the source electrode S of the driving transistor DRT can be connected to the second capacitor electrode CAPE2 through the contact hole of the second interlayer insulating film ILD2.

[0236] Referring to Figure 8 and Figure 9 , another part of the source electrode S of the driving transistor DRT can be electrically connected to the light-shielding pattern LS.

[0237] For example, the light-shielding connection pattern CP_L can be disposed on the same layer as the gate electrode G. Another part of the source electrode S of the driving transistor DRT can be electrically connected to the light-shielding pattern LS through the light-shielding connection pattern CP_L.

[0238] Referring to Figure 8 and Figure 9 , another part of the source electrode S of the driving transistor DRT can be connected to the light-shielding connection pattern CP_L through the contact holes of the second interlayer insulating film ILD2 and the first interlayer insulating film ILD1, and the light-shielding connection pattern CP_L can be connected to the light-shielding pattern LS through the contact holes of the gate insulating film GI and the buffer layer BUF.

[0239] Referring to Figure 8 andFigure 9 The first passivation layer PAS1 can be disposed on the source electrode S of the driving transistor DRT.

[0240] Referring to Figure 8 and Figure 9 the source-drain pattern CP_S can be disposed on the first passivation layer PAS1, and the source-drain pattern CP_S can be connected to the source electrode S through the contact hole of the first passivation layer PAS1.

[0241] Referring to Figure 8 and Figure 9 the second passivation layer PAS2 can be disposed on the source-drain pattern CP_S.

[0242] Referring to Figure 8 and Figure 9 the first insulating layer PAC1 can be disposed on the second passivation layer PAS2, and the first display connection pattern RP_S can be disposed on the first insulating layer PAC1. For example, the first insulating layer PAC1 can be a photoacrylic layer.

[0243] Referring to Figure 8 and Figure 9 the first display connection pattern RP_S can be connected to the source-drain pattern CP_S through the contact holes of the first insulating layer PAC1 and the second passivation layer PAS2.

[0244] Referring to Figure 8 and Figure 9 the first power line VDDL can be disposed on the same layer as the first display connection pattern RP_S. The first display connection pattern RP_S and the first power line VDDL can be disposed on the same layer and can include a reflective metal material.

[0245] Referring to Figure 8 and Figure 9 the third passivation layer PAS3 can be disposed on the first display connection pattern RP_S and the first power line VDDL, and the support layer INS can be disposed on the third passivation layer PAS3.

[0246] Referring to Figure 8 and Figure 9 the light-emitting diode LED including the first electrode E1 and the second electrode E2 can be disposed on the support layer INS. The second electrode connection pattern CP_E2 for electrically connecting the second electrode E2 and the first display connection pattern RP_S can be disposed on the upper part of the support layer INS. One end of the second electrode connection pattern CP_E2 can be connected to the first display connection pattern RP_S through the contact hole of the support layer INS, and the other end of the second electrode connection pattern CP_E2 can be connected to the second electrode E2 of the light-emitting diode LED.

[0247] Referring toFigure 8 and Figure 9 The first power connection pattern CP_VDDL may be disposed on the support layer INS, and the first power connection pattern CP_VDDL may be connected to the first power line VDDL through a contact hole in the support layer INS and the third passivation layer PAS3.

[0248] Referring to Figure 8 and Figure 9 the second insulating layer PAC2 may be disposed on the second electrode connection pattern CP_E2.

[0249] Referring to Figure 8 and Figure 9 the third insulating layer PAC3 may be disposed on the second insulating layer PAC2 and the light-emitting diode LED. The first electrode connection pattern CP_E1 may be disposed on the third insulating layer PAC3.

[0250] Referring to Figure 8 and Figure 9 the first electrode connection pattern CP_E1 may be connected to the first power connection pattern CP_VDDL through contact holes in the third insulating layer PAC3 and the second insulating layer PAC2.

[0251] Figure 8 The touch sensor structure shown is a structure in which the touch routing line TR and the light-shielding pattern LS are disposed on the same layer. However, the present disclosure is not limited thereto, and the touch routing line TR may be disposed on a different layer from the light-shielding pattern LS.

[0252] Referring to Figure 8 the touch sensor electrode TSE may be disposed on the same layer as the first electrode connection pattern CP_E1 and may include a transparent electrode material.

[0253] A touch connection structure for electrically connecting the touch sensor electrode TSE and the touch routing line TR may be disposed between the touch sensor electrode TSE and the touch routing line TR.

[0254] Referring to Figure 8 the touch connection structure in the touch display panel 110 according to an exemplary embodiment of the present disclosure may include: a touch connection pattern CP1_TR including a gate electrode material, a touch connection pattern CP2_TR including a first source-drain electrode material constituting the source electrode S, a touch connection pattern CP3_TR including a second source-drain electrode material constituting the source-drain pattern CP_S, a touch connection pattern RP_TS including a reflective electrode material the same as the first display connection pattern RP_S and the first power line VDDL, and a touch connection pattern CP_TSE including a metal the same as the second electrode connection pattern CP_E2.

[0255] Figure 9The touch sensor structure shown in [Figure] includes a structure in which the touch routing line TR includes the same reflective electrode material as the first display connection pattern RP_S and the first power line VDDL. However, the present disclosure is not limited thereto, and the touch routing line TR may include a material different from the first display connection pattern RP_S and the first power line VDDL.

[0256] Referring to Figure 9 , the touch sensor electrode TSE may be disposed on the same layer as the first electrode connection pattern CP_E1 and may include a transparent electrode material.

[0257] A touch connection structure for electrically connecting the touch sensor electrode TSE and the touch routing line TR may be provided between the touch sensor electrode TSE and the touch routing line TR.

[0258] Referring to Figure 9 , the touch connection structure in the touch display panel 110 according to an exemplary embodiment of the present disclosure may include a touch connection pattern CP_TSE, and the touch connection pattern CP_TSE includes the same metal as the second electrode connection pattern CP_E2. However, the present disclosure is not limited thereto, and the touch connection pattern CP_TSE may include a metal different from the second electrode connection pattern CP_E2.

[0259] Referring to Figure 8 and Figure 9 , the touch display panel 110 included in the light-emitting diode display device 100 having a built-in touch sensor according to an exemplary embodiment of the present disclosure may include a substrate SUB, a touch sensor TS including a plurality of touch sensor electrodes TSE that are electrically connected to each other and include a transparent electrode material, a light-emitting diode LED including a first electrode E1 and a second electrode E2, and a driving transistor DRT including an active layer, a source electrode, a gate electrode, and a drain electrode. The exemplary embodiments of the present disclosure are not limited thereto. In addition, all components of each light-emitting diode display device according to all embodiments of the present disclosure are operably coupled and configured.

[0260] Referring to Figure 8 and Figure 9 , in the touch display panel 110 included in the light-emitting diode display device 100 having a built-in touch sensor according to an exemplary embodiment of the present disclosure, the touch sensor TS may include a horizontal connection pattern CL_H that connects a plurality of touch sensor electrodes TSE in a horizontal direction and a vertical connection pattern CL_V that connects a plurality of touch sensor electrodes TSE in a vertical direction.

[0261] The horizontal connection pattern CL_H may include a transparent electrode material, and the vertical connection pattern CL_V may include an opaque metal material.

[0262] The horizontal connection pattern CL_H may be located in an upper layer closer to the viewing surface than the vertical connection pattern CL_V.

[0263] The horizontal connection pattern CL_H may include a transparent electrode material to minimize a reduction in transmittance. The transparent electrode material may be a high-resistance material. The vertical connection pattern CL_V may include an opaque metal material having a relatively lower resistance than the transparent electrode material, thereby having a resistance reduction effect.

[0264] Referring to Figure 8 and Figure 9 In the touch display panel 110 included in the light-emitting diode display device 100 having a built-in touch sensor according to an exemplary embodiment of the present disclosure, a storage capacitor Cst may also be provided on the driving transistor DRT.

[0265] Referring to Figure 8 and Figure 9 According to an exemplary embodiment of the present disclosure, the light-emitting diode display device 100 having a built-in touch sensor may further include a touch driving circuit 160 for supplying a touch driving signal to the touch sensor TS and a touch routing line TR for connecting the touch sensor TS and the touch driving circuit 160.

[0266] Referring to Figure 8 and Figure 9 In the light-emitting diode display device 100 having a built-in touch sensor according to an exemplary embodiment of the present disclosure, the touch routing line TR may be provided between the substrate SUB and the touch sensor electrode TSE.

[0267] Referring to Figure 8 and Figure 9 According to an exemplary embodiment of the present disclosure, the light-emitting diode display device 100 having a built-in touch sensor may include a transparent region TA in which a touch sensor electrode TSE is provided and pixel regions PA1 and PA2 in which light-emitting diodes LED are provided.

[0268] Figure 10 and Figure 11 FIG. shows a driving timing diagram of the light-emitting diode display device 100 having a built-in touch sensor according to an exemplary embodiment of the present disclosure.

[0269] Figure 10 is a driving timing diagram of the light-emitting diode display device 100 having a built-in touch sensor according to an exemplary embodiment of the present disclosure when performing touch driving in a display hold driving manner.

[0270] Referring to Figure 10, when the light-emitting diode display device 100 with a built-in touch sensor according to an exemplary embodiment of the present disclosure performs touch driving in a display-hold driving manner, the display driving period Td and the display-hold period Th can be time-divided, and touch driving can be performed during the display-hold period Th.

[0271] Referring to Figure 10 , the driving period of the light-emitting diode display device 100 with a built-in touch sensor can include a display driving period Td and a display-hold period Th, and during the display-hold period Th, a touch driving signal can be applied to the touch sensor electrode TSE. Here, the touch driving signal can be a signal whose voltage level changes over time.

[0272] As Figure 10 shown, if the light-emitting diode display device 100 with a built-in touch sensor according to an exemplary embodiment of the present disclosure performs touch driving in a display-hold driving manner, then as Figure 8 shown, the touch routing line TR can be composed of metal located at the lowest position in the touch display panel 110. For example, the metal located at the lowest position in the touch display panel 110 can include a light-shielding pattern LS.

[0273] If the touch routing line TR is composed of metal located at the lowest position in the touch display panel 110, the influence between touch driving and display driving (in particular, display-to-touch crosstalk DTX as the influence of display driving on touch driving) may be small. Therefore, touch driving and display driving can be performed in a time-sharing manner.

[0274] Figure 11 is a driving timing diagram of the case where the light-emitting diode display device 100 according to an exemplary embodiment of the present disclosure performs touch driving in a display-off driving manner.

[0275] Referring to Figure 11 , in the case where the light-emitting diode display device 100 with a built-in touch sensor according to an exemplary embodiment of the present disclosure performs touch driving in a display-off driving manner, when the display driving period DISPLAY ends, touch driving can be performed during the display-off period at the end of the display.

[0276] As Figure 11 shown, in the case where the light-emitting diode display device 100 with a built-in touch sensor according to an exemplary embodiment of the present disclosure performs touch driving in a display-off driving manner, as Figure 9As shown, the touch routing line TR can be formed by metal (e.g., the first display connection pattern RP_S) in the touch display panel 110 that is close to the metal or electrode related to display driving. For example, the metal in the touch display panel 110 that is close to the electrode or metal related to display driving can include the first display connection pattern RP_S. However, the present disclosure is not limited thereto.

[0277] If the touch routing line TR is constituted by metal (e.g., the first display connection pattern RP_S) in the touch display panel 110 that is close to the electrode or metal related to display driving, the influence between touch driving and display driving (in particular, the display-to-touch crosstalk DTX, which is the influence of display driving on touch driving) may be significant. Therefore, touch driving is performed during the display-off period at the end of display driving.

[0278] Referring to Figure 11 , when the light-emitting diode display device 100 with a built-in touch sensor is in the display-off state, a touch driving signal can be applied to the touch sensor electrode TSE.

[0279] As described above, according to an exemplary embodiment of the present disclosure, when the touch routing line TR is formed by the metal at the lowest position in the touch display panel 110, touch driving and display driving can be performed in a time-division manner; alternatively, when the touch routing line TR is formed by metal in the touch display panel 110 that is close to the electrode or metal related to display driving, touch driving can be performed during the display-off period at the end of display driving. However, the present disclosure is not limited thereto.

[0280] The above-described light-emitting diode display device 100 with a built-in touch sensor according to an exemplary embodiment of the present disclosure can be a general monitor or television, or can be a mobile terminal such as a smartphone or a tablet.

[0281] Alternatively, the light-emitting diode display device 100 with a built-in touch sensor according to an exemplary embodiment of the present disclosure can be a vehicle display device installed in a vehicle. However, the present disclosure is not limited thereto.

[0282] A simple description of the above exemplary embodiments of the present disclosure will be given below.

[0283] A display device with a built-in touch sensor according to an exemplary embodiment of the present disclosure may include: a substrate; a light-emitting diode included in a sub-pixel and including a first electrode and a second electrode; a driving voltage line including a reflective metal material; a first electrode connection pattern electrically connecting the driving voltage line and the first electrode and including a transparent electrode material; a touch sensor electrode including a transparent electrode material; and a touch routing line electrically connected to the touch sensor electrode and disposed between the substrate and the touch sensor electrode.

[0284] A display device with a built-in touch sensor according to an exemplary embodiment of the present disclosure may further include a driving transistor included in a sub-pixel and including an active layer, a source electrode, a gate electrode, and a drain electrode.

[0285] A display device with a built-in touch sensor according to an exemplary embodiment of the present disclosure may further include a support layer disposed on the driving voltage line and an insulating layer (e.g., Figure 8 and Figure 9 a third insulating layer PAC3) located on the support layer.

[0286] The light-emitting diode may be disposed between the support layer and the insulating layer.

[0287] The first electrode connection pattern may be disposed on the insulating layer. One end of the first electrode connection pattern may be electrically connected to the first electrode through a contact hole of the insulating layer, and the other end of the first electrode connection pattern may be electrically connected to the driving voltage line through another contact hole of the insulating layer.

[0288] The touch sensor electrode may be disposed on the insulating layer.

[0289] The touch routing line may be disposed under the support layer.

[0290] The touch sensor electrode may be electrically connected to the touch routing line through contact holes of the insulating layer and the support layer.

[0291] A display device with a built-in touch sensor according to an exemplary embodiment of the present disclosure may further include a first display connection pattern that electrically connects the source electrode or the drain electrode to the second electrode and includes a reflective metal material.

[0292] A display device with a built-in touch sensor according to an exemplary embodiment of the present disclosure may further include a storage capacitor including a first capacitor electrode and a second capacitor electrode that overlap each other.

[0293] The first capacitor electrode may be a pattern electrically connected to the gate electrode, and the second capacitor electrode may be a pattern electrically connected to the source electrode.

[0294] The storage capacitor may be disposed on the driving transistor.

[0295] The storage capacitor may overlap at least a portion of the active layer and at least a portion of the source electrode.

[0296] The light emitting diode display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure may further include a light shielding pattern disposed between the substrate and the active layer and overlapping the active layer.

[0297] In the display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure, the touch routing line may be disposed on the same layer as the light shielding pattern.

[0298] The display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure may further include a touch connection structure that electrically connects the touch sensor electrode and the touch routing line.

[0299] In the display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure, the touch connection structure may include a first touch connection pattern including a reflective metal material.

[0300] The display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure may further include a second electrode connection pattern that electrically connects the second electrode to the first display connection pattern.

[0301] In the display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure, the touch connection structure may further include a second touch connection pattern disposed in the metal layer, and at least one of the gate electrode, the source electrode, and the drain electrode is disposed in the metal layer.

[0302] In the display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure, the touch connection structure further includes a third touch connection pattern that connects the first touch connection pattern to the touch sensor electrode.

[0303] The display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure further includes a second electrode connection pattern electrically connected to the second electrode, and wherein the third touch connection pattern and the second electrode connection pattern are formed of the same metal on the same layer.

[0304] The driving period of the display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure may include a display driving period and a display holding period. A touch driving signal may be applied to the touch sensor electrode during the display holding period.

[0305] In a display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure, the touch routing line may include a reflective metal material.

[0306] When the display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure is in a display-off state, a touch driving signal may be applied to the touch sensor electrode.

[0307] A display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure may include a light-transmissive transparent region and a non-transparent region different from the transparent region.

[0308] The touch sensor electrode may be disposed in the transparent region.

[0309] The non-transparent region may include a pixel region in which a light-emitting diode and a driving transistor are disposed.

[0310] The touch routing line may be disposed in the non-transparent region.

[0311] The region in the non-transparent region where the touch routing line is disposed may be a region different from the pixel region or may be a region overlapping with the pixel region.

[0312] A part of the touch sensor electrode may extend from the transparent region to the non-transparent region and may be electrically connected to the touch routing line disposed in the non-transparent region.

[0313] Alternatively, a part of the touch routing line or an electrical pattern connected to the touch routing line may extend from the non-transparent region to the transparent region and may be electrically connected to the touch sensor electrode disposed in the transparent region.

[0314] In a display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure, each sub-pixel may further include a first scan transistor that controls the connection between the gate electrode of the driving transistor and the data line, a second scan transistor that controls the connection between the second electrode of the light-emitting diode and the reference voltage line, and a storage capacitor connected between the second electrode of the light-emitting diode and the gate electrode of the driving transistor.

[0315] A display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure may include a plurality of first touch sensors and a plurality of second touch sensors.

[0316] The plurality of first touch sensors may be arranged in a matrix form.

[0317] The first touch sensors disposed in the same row among the plurality of first touch sensors may be electrically connected.

[0318] Each of the plurality of first touch sensors may be configured in a grid form including a plurality of touch sensor electrodes connected to each other.

[0319] In a display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure, the first touch sensors disposed in the same row among the plurality of first touch sensors may be electrically connected to form a transmission touch sensor line or a reception touch sensor line.

[0320] Each of the plurality of second touch sensors may form a reception touch sensor line or a transmission touch sensor line.

[0321] A display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure may be installed in a vehicle.

[0322] A display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure may include: a substrate; a touch sensor including a plurality of touch sensor electrodes electrically connected to each other and including a transparent electrode material; and a light-emitting diode including a first electrode and a second electrode.

[0323] A display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure may further include a driving transistor including an active layer, a source electrode, a gate electrode, and a drain electrode.

[0324] The touch sensor may include a horizontal connection pattern connecting a plurality of touch sensor electrodes in a horizontal direction and including a transparent electrode material, and a vertical connection pattern connecting a plurality of touch sensor electrodes in a vertical direction and including an opaque metal material.

[0325] A display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure may further include a storage capacitor disposed on the driving transistor.

[0326] A display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure may further include a touch driving circuit for supplying a touch driving signal to the touch sensor, and a touch routing line for connection between the touch sensor and the touch driving circuit.

[0327] The touch routing line may be disposed between the substrate and the plurality of touch sensor electrodes.

[0328] A display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure may further include a transparent area provided with a plurality of touch sensor electrodes and a pixel area provided with a light-emitting diode.

[0329] In a display device having a built-in touch sensor according to an exemplary embodiment of the present disclosure, a touch routing line may be connected to a pad unit across a display area without detouring through a non-display area. According to this touch routing structure, the size of the non-display area (e.g., bezel) may be reduced.

[0330] A display device according to an exemplary embodiment of the present disclosure may include: a substrate divided into a pixel area and a non-pixel area; a light-emitting diode located on the substrate in the pixel area and including a first electrode and a second electrode; a touch sensor electrode located on the substrate in the non-pixel area and including a transparent electrode material; and a touch routing line electrically connected to the touch sensor electrode and disposed between the substrate and the touch sensor electrode.

[0331] The display device may further include: a driving voltage line including a reflective metal material, and a first electrode connection pattern electrically connecting the driving voltage line to the first electrode and including a transparent electrode material.

[0332] The pixel area may be set as an opaque area, and the non-pixel area may be set to include a transparent area and a part of an opaque area.

[0333] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor may be provided.

[0334] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor capable of transparent display may be provided.

[0335] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor installed in a vehicle may be provided.

[0336] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor capable of minimizing transmittance degradation may be provided.

[0337] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor may be provided, and the light-emitting diode display device can reduce the bezel because the touch routing line is connected to the pad unit across the display area without detouring through the non-display area.

[0338] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device having a built-in touch sensor may be provided, which is easy to manufacture and can reduce weight by having a simple vertical structure.

[0339] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device with a built-in touch sensor can be provided, which has an arrangement structure of touch routing lines capable of reducing the influence between display driving and touch driving.

[0340] According to an exemplary embodiment of the present disclosure, a light-emitting diode display device with a built-in touch sensor can be provided for performing touch driving capable of reducing the influence between display driving and touch driving.

[0341] The above description and the drawings provide examples of the technical concept of the present disclosure for illustrative purposes only. Various modifications, additions, and substitutions to the described exemplary embodiments will be apparent to those skilled in the art without departing from the spirit and scope of the present disclosure. Additionally, the disclosed exemplary embodiments are intended to illustrate the scope of the technical concept of the present disclosure. Therefore, the scope of the present disclosure is not limited to the shown exemplary embodiments.

[0342] Cross-reference to related applications

[0343] This application claims the priority of Korean Patent Application No. 10-2023-0161221, filed on November 20, 2023, the entire content of which is hereby incorporated herein by reference for all purposes.

Claims

1. A display device, comprising: substrate; a driving transistor, the driving transistor being included in the sub-pixel and comprising an active layer, a source electrode, a gate electrode, and a drain electrode; a light emitting diode, the light emitting diode being included in the sub-pixel and comprising a first electrode and a second electrode; a driving voltage line, the driving voltage line comprising a reflective metal material; a first electrode connection pattern, the first electrode connection pattern electrically connecting the driving voltage line and the first electrode and comprising a transparent electrode material; a touch sensor electrode, the touch sensor electrode comprising the transparent electrode material; as well as A touch routing line is electrically connected to the touch sensor electrode and is disposed between the substrate and the touch sensor electrode.

2. The display device according to claim 1, further comprising: A support layer, the support layer being arranged on the driving voltage line; as well as an insulating layer, the insulating layer being located on the supporting layer, The light emitting diode is arranged between the supporting layer and the insulating layer, and the first electrode connection pattern is arranged on the insulating layer. wherein one end of the first electrode connection pattern is electrically connected to the first electrode through a contact hole of the insulating layer, and the other end of the first electrode connection pattern is electrically connected to the driving voltage line through another contact hole of the insulating layer, The touch sensor electrodes are arranged on the insulating layer, and the touch routing lines are arranged below the supporting layer. The touch sensor electrodes are electrically connected to the touch routing lines through contact holes in the insulating layer and the supporting layer. 3 . The display device according to claim 1 , further comprising a first display connection pattern electrically connecting the source electrode or the drain electrode to the second electrode, and comprising the reflective metal material.

4. The display device according to claim 1 , further comprising a storage capacitor including a first capacitor electrode and a second capacitor electrode overlapping each other, in, The first capacitor electrode is a pattern electrically connected to the gate electrode, and the second capacitor electrode is a pattern electrically connected to the source electrode, Wherein, the storage capacitor is arranged on the driving transistor.

5. The display device according to claim 4, wherein: The storage capacitor overlaps at least a portion of the active layer and overlaps at least a portion of the source electrode. 6 . The display device according to claim 1 , further comprising a light shielding pattern disposed between the substrate and the active layer, and the light shielding pattern overlaps the active layer.

7. The display device according to claim 6, wherein: The touch routing line and the light shielding pattern are arranged on the same layer.

8. The display device according to claim 7, further comprising a touch connection structure, wherein the touch connection structure electrically connects the touch sensor electrode and the touch routing line. in, The touch connection structure includes a first touch connection pattern, and the first touch connection pattern includes the reflective metal material.

9. The display device according to claim 8, wherein: The touch connection structure further includes a second touch connection pattern disposed in a metal layer in which at least one of the gate electrode, the source electrode, and the drain electrode is disposed.

10. The display device according to claim 1, wherein: The touch routing line includes the reflective metal material.

11. The display device according to claim 1, wherein: The substrate comprises: Transparent areas that transmit light; and a non-transparent area different from the transparent area, Wherein, the touch sensor electrode is arranged in the transparent area, The non-transparent area includes a pixel area, and the light emitting diode and the driving transistor are arranged in the pixel area.

12. The display device according to claim 11, wherein: The touch routing line is arranged in the non-transparent area, The area in the non-transparent area where the touch routing line is arranged is an area different from the pixel area or an area overlapping with the pixel area. wherein a portion of the touch sensor electrode extends from the transparent area to the non-transparent area and is electrically connected to the touch routing line arranged in the non-transparent area, or a portion of the touch routing line or a portion of the electrical pattern electrically connected to the touch routing line extends from the non-transparent area to the transparent area and is electrically connected to the touch sensor electrode arranged in the transparent area.

13. The display device according to claim 1, further comprising a plurality of first touch sensors and a plurality of second touch sensors, in, The plurality of first touch sensors are arranged in a matrix form, The first touch sensors arranged in the same row among the plurality of first touch sensors are electrically connected, Each of the plurality of first touch sensors is configured in a grid form including a plurality of touch sensor electrodes connected to each other.

14. The display device according to claim 13, wherein: First touch sensors arranged in the same row among the plurality of first touch sensors are electrically connected to form a transmission touch sensor line or a reception touch sensor line, Each of the plurality of second touch sensors forms the receiving touch sensor line or the sending touch sensor line.

15. A display device, comprising: substrate; a touch sensor located on the substrate, the touch sensor including a plurality of touch sensor electrodes electrically connected to each other and including a transparent electrode material; A light emitting diode, the light emitting diode is located on the substrate, and the light emitting diode includes a first electrode and a second electrode; as well as a driving transistor, the driving transistor comprising an active layer, a source electrode, a gate electrode and a drain electrode, The touch sensor further includes a horizontal connection pattern and a vertical connection pattern, wherein the horizontal connection pattern connects the multiple touch sensor electrodes in a horizontal direction and includes the transparent electrode material, and the vertical connection pattern connects the multiple touch sensor electrodes in a vertical direction and includes an opaque metal material.

16. The display device according to claim 15, wherein: The horizontal connection pattern is located on the vertical connection pattern.

17. The display device according to claim 15, wherein: The substrate comprises: a transparent area, wherein the plurality of touch sensor electrodes are disposed in the transparent area; and A pixel area is provided with the light emitting diode.

18. A display device, comprising: A substrate, wherein the substrate is divided into a pixel area and a non-pixel area; a light emitting diode, the light emitting diode being located on the substrate in the pixel region and comprising a first electrode and a second electrode; a touch sensor electrode located on the substrate in the non-pixel region and comprising a transparent electrode material; as well as A touch routing line is electrically connected to the touch sensor electrode and is disposed between the substrate and the touch sensor electrode.

19. The display device according to claim 18, further comprising: a driving voltage line, the driving voltage line comprising a reflective metal material; A first electrode connection pattern electrically connects the driving voltage line and the first electrode and includes the transparent electrode material.

20. The display device according to claim 18, in, The pixel area is set as a non-transparent area, and The non-pixel area is configured to include a portion of the non-transparent area and the transparent area.

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