Touch sensor and display device including the touch sensor

Abstract

A display device is disclosed, comprising a first substrate, a light-emitting element, a second substrate, and a touch sensor on the second substrate. The touch sensor includes a first touch conductive layer on the second substrate, a touch insulating layer on the first touch conductive layer, and a second touch conductive layer on the touch insulating layer. The first touch conductive layer includes a first sub-sensing electrode, a connecting portion connecting adjacent first sub-sensing electrodes, and a second sub-sensing electrode. The second touch conductive layer includes a third sub-sensing electrode and a fourth sub-sensing electrode. The third sub-sensing electrode is connected to one of the first sub-sensing electrodes through a contact hole passing through the touch insulating layer, and the fourth sub-sensing electrode is electrically connected to one of the second sub-sensing electrodes through a contact hole passing through the touch insulating layer, thereby electrically connecting adjacent second sub-sensing electrodes.

Description

[0001] This application claims priority to Korean Patent Application No. 10-2019-0144123, filed on November 12, 2019, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference. Technical Field

[0002] This disclosure relates to a display, and more specifically, to a touch sensor and a display device including the touch sensor. Background Technology

[0003] Modern display devices can come in a wide variety of shapes and sizes and are often integrated with touch sensors to form touchscreens. While the use of touchscreens was previously limited to small portable devices such as smartphones, they are now used in a variety of other devices such as personal computers, where they can replace more traditional input devices such as physical keyboards.

[0004] Touch sensors (such as those in touchscreen displays) include multiple electrodes disposed in a sensing area for sensing touch input. When the resistance of the electrodes is high, not only will the power consumption of the display device itself, including the touch sensor, increase, but a resistance-capacitance (RC) delay will also occur within the touch sensor. Summary of the Invention

[0005] An exemplary embodiment of this disclosure provides a display device in which the resistance of the electrode portion of a touch sensor is reduced.

[0006] An exemplary embodiment of this disclosure provides a touch sensor in which the resistance of the electrode portion is reduced.

[0007] According to an exemplary embodiment of this disclosure, a display device includes a first substrate. A plurality of light-emitting elements are disposed on the first substrate. A second substrate is disposed opposite to the first substrate. A touch sensor is disposed on the second substrate. The touch sensor includes: a first touch conductive layer disposed on the second substrate and including a first transparent conductive material; a touch insulating layer disposed on the first touch conductive layer; and a second touch conductive layer disposed on the touch insulating layer and including a second transparent conductive material. The first touch conductive layer includes: a plurality of first sub-sensing electrodes arranged in a first direction; a connecting portion configured to connect adjacent first sub-sensing electrodes; and a plurality of second sub-sensing electrodes arranged in a second direction intersecting the first direction and spaced apart from the plurality of first sub-sensing electrodes and the connecting portion. The second touch conductive layer includes a third sub-sensing electrode and a fourth sub-sensing electrode. The third sub-sensing electrode is electrically connected to one of the plurality of first sub-sensing electrodes through a plurality of first contact holes passing through the touch insulating layer. The fourth sub-sensing electrode is electrically connected to one of the plurality of second sub-sensing electrodes through a plurality of second contact holes passing through the touch insulating layer, thereby electrically connecting adjacent second sub-sensing electrodes. The fourth sub-sensing electrode is spaced apart from the third sub-sensing electrode.

[0008] The third sub-sensing electrode may be at least partially superimposed on the first sub-sensing electrode. The fourth sub-sensing electrode may be at least partially superimposed on the second sub-sensing electrode.

[0009] The fourth sub-sensing electrode may extend primarily in the second direction, may overlap at least partially with the connecting portion in the thickness direction, and may be electrically insulated from the connecting portion.

[0010] The first touch conductive layer may further include a first dummy electrode, which is disposed between a first sub-sensing electrode and a second sub-sensing electrode that are adjacent to each other. The first dummy electrode may be a floating electrode, which is spaced apart from the first sub-sensing electrode that is adjacent to it, and the spacer is disposed between the floating electrode and the first sub-sensing electrode, and is also spaced apart from the second sub-sensing electrode that is adjacent to it, and the spacer is disposed between the floating electrode and the second sub-sensing electrode.

[0011] The fourth sub-sensing electrode may at least partially cover the separation space between the first dummy electrode and the second sub-sensing electrode, as well as a portion of the first dummy electrode, in the plan view. The third sub-sensing electrode may at least partially cover the separation space between the first dummy electrode and the first sub-sensing electrode, as well as another portion of the first dummy electrode, in the plan view.

[0012] The second touch conductive layer may further include a second dummy electrode, which is disposed between adjacent third and fourth sub-sensing electrodes. The second dummy electrode may be spaced apart from its adjacent third sub-sensing electrode, with a separation space disposed between the second dummy electrode and the third sub-sensing electrode, and also spaced apart from its adjacent fourth sub-sensing electrode, with a separation space disposed between the second dummy electrode and the fourth sub-sensing electrode.

[0013] The width of the second dummy electrode can be larger than the width of the first dummy electrode. The second dummy electrode can at least partially cover the separation space between the first dummy electrode and the second sub-sensing electrode, as well as the separation space between the first dummy electrode and the first sub-sensing electrode.

[0014] The second dummy electrode may include multiple dummy patterns that are separate from each other. The first dummy electrode may at least partially cover the separation space between adjacent dummy patterns.

[0015] The touch sensor may also include a third touch conductive layer, which is disposed between the first touch conductive layer and the touch insulating layer.

[0016] The third touch conductive layer may include an opaque conductive material.

[0017] The touch sensor may also include multiple touch wires connected to multiple first sub-sensing electrodes or multiple second sub-sensing electrodes.

[0018] The touch wiring may include a first wiring portion and a second wiring portion disposed on the first wiring portion. The first touch conductive layer may also include the first wiring portion. The third touch conductive layer may also include the second wiring portion.

[0019] The second wiring section can be directly installed on the first wiring section and can be electrically connected to the first wiring section.

[0020] The touch sensor may also include a capacitive pattern covering multiple touch wires. The second touch conductive layer may also include a capacitive pattern.

[0021] Both the first and second transparent conductive materials can be formed as amorphous indium tin oxide.

[0022] The first substrate may include a display substrate. The second substrate may include an encapsulation substrate that seals multiple light-emitting elements. The touch sensor may be directly mounted on the encapsulation substrate.

[0023] The sensing electrodes of touch sensors all have a planar shape.

[0024] The display device may also include a polarizing film disposed on the touch sensor and an adhesive member disposed between the polarizing film and the touch sensor. The adhesive member may be in direct contact with the second touch conductive layer.

[0025] The planar profiles of the third sub-sensing electrode and the first sub-sensing electrode superimposed on the third sub-sensing electrode in the thickness direction can be identical to each other. The planar profiles of the fourth sub-sensing electrode and the second sub-sensing electrode superimposed on the fourth sub-sensing electrode in the thickness direction can also be identical to each other.

[0026] According to an exemplary embodiment of this disclosure, a touch sensor includes: a first touch conductive layer comprising a first transparent conductive material; a touch insulating layer disposed on the first touch conductive layer; and a second touch conductive layer disposed on the touch insulating layer and comprising a second transparent conductive material. The first touch conductive layer includes: a plurality of first sub-sensing electrodes arranged in a first direction; a connecting portion configured to connect adjacent first sub-sensing electrodes; and a plurality of second sub-sensing electrodes arranged in a second direction intersecting the first direction and spaced apart from the plurality of first sub-sensing electrodes and the connecting portion. The second touch conductive layer includes a third sub-sensing electrode and a fourth sub-sensing electrode. The third sub-sensing electrode is electrically connected to one of the plurality of first sub-sensing electrodes through a plurality of first contact holes passing through the touch insulating layer. The fourth sub-sensing electrode is electrically connected to one of the plurality of second sub-sensing electrodes through a plurality of second contact holes passing through the touch insulating layer, thereby electrically connecting adjacent second sub-sensing electrodes. The fourth sub-sensing electrode is spaced apart from the third sub-sensing electrode.

[0027] The third sub-sensing electrode may be at least partially superimposed on the first sub-sensing electrode. The fourth sub-sensing electrode is at least partially superimposed on the second sub-sensing electrode. The fourth sub-sensing electrode extends primarily in the second direction. The fourth sub-sensing electrode is at least partially superimposed on the connecting portion in the thickness direction and is electrically insulated from the connecting portion.

[0028] The touch sensor may further include a third touch conductive layer disposed between the first touch conductive layer and the touch insulating layer. The third touch conductive layer may include an opaque conductive material. The touch sensor may also include multiple touch wirings connected to multiple first sub-sensing electrodes or multiple second sub-sensing electrodes. The multiple touch wirings may include a first wiring portion and a second wiring portion disposed on the first wiring portion. The first touch conductive layer may also include the first wiring portion. The third touch conductive layer may also include the second wiring portion.

[0029] It should be noted that the purpose of this disclosure is not limited to the above-mentioned purposes, and other purposes not mentioned will be apparent to those skilled in the art from the following description. Attached Figure Description

[0030] The above aspects and features, as well as other aspects and features, of this disclosure will become more apparent from the detailed description of exemplary embodiments of this disclosure with reference to the accompanying drawings, in which:

[0031] Figure 1 This is a plan view illustrating a display device according to an exemplary embodiment of the present disclosure;

[0032] Figure 2 It is along Figure 1 A sectional view taken by line I-I';

[0033] Figure 3 This is a schematic cross-sectional view illustrating a touch sensor according to an exemplary embodiment of the present disclosure;

[0034] Figure 4 This is a schematic plan view illustrating a display panel according to an exemplary embodiment of the present disclosure;

[0035] Figure 5 It is shown Figure 4 An exemplary equivalent circuit diagram of the pixels is shown in the diagram;

[0036] Figure 6 It is shown Figure 5 A schematic cross-sectional view of the pixels shown in the figure;

[0037] Figure 7 It is shown Figure 4 The equivalent circuit diagram of the pixel variant example shown in the figure;

[0038] Figure 8 This is a plan view illustrating a touch sensor according to an exemplary embodiment of the present disclosure;

[0039] Figure 9 It is shown Figure 8 An enlarged plan view of region A;

[0040] Figure 10 It is shown Figure 9 A magnified view of a portion;

[0041] Figure 11 It is shown Figure 10 A view of the first sub-sensing electrode, the second sub-sensing electrode, and the connecting portion;

[0042] Figure 12 It is shown Figure 10 A view of the third and fourth sub-sensing electrodes;

[0043] Figure 13 It is along Figure 10 A sectional view taken from line II-II';

[0044] Figure 14 It is along Figure 10 A sectional view taken from line III-III';

[0045] Figure 15 It is along Figure 10 A sectional view taken by line IV-IV';

[0046] Figure 16 yes Figure 8 A magnified view of region B;

[0047] Figure 17 It is shown Figure 16 A view of the first wiring section;

[0048] Figure 18 It is shown Figure 16 A view of the first wiring section and the second wiring section;

[0049] Figure 19 It is along Figure 16 A sectional view taken by line V-V';

[0050] Figure 20 This is a plan view of a portion of a touch sensor according to an exemplary embodiment of the present disclosure;

[0051] Figure 21 yes Figure 20 A sectional view;

[0052] Figure 22 This is a plan view illustrating a portion of a touch sensor according to an exemplary embodiment of the present disclosure;

[0053] Figure 23 yes Figure 22 A sectional view;

[0054] Figure 24 This is a plan view illustrating a portion of a touch sensor according to an exemplary embodiment of the present disclosure;

[0055] Figure 25 yes Figure 24 A sectional view;

[0056] Figure 26 This is a plan view illustrating a portion of a touch sensor according to an exemplary embodiment of the present disclosure;

[0057] Figure 27 yes Figure 26 A sectional view;

[0058] Figure 28 This is a plan view illustrating a portion of a touch sensor according to an exemplary embodiment of the present disclosure;

[0059] Figure 29 It is along Figure 28 A sectional view taken by line VI-VI';

[0060] Figure 30 It is along Figure 28 A sectional view taken from line VII-VII';

[0061] Figure 31 yes Figure 19 Examples of variations of the embodiments;

[0062] Figure 32 This is a plan view illustrating a portion of a touch sensor according to an exemplary embodiment of the present disclosure; and

[0063] Figure 33 yes Figure 32 A sectional view. Detailed Implementation

[0064] For clarity, specific terminology is used in describing the exemplary embodiments of this disclosure illustrated in the accompanying drawings. However, this disclosure is not intended to be limited to the specific terminology chosen so far, and it will be understood that each specific element includes all technical equivalents that operate in a similar manner.

[0065] It will be understood that when an element is referred to as being related to another element (such as being “joined” or “connected” to another element), the element may be directly joined or connected to said other element, or there may be an intermediate element between them. Other expressions explaining the relationship between elements (such as “between,” “directly between,” “adjacent to,” or “directly adjacent to”) should be interpreted in the same way.

[0066] Throughout the specification and accompanying drawings, the same reference numerals may refer to the same or similar parts.

[0067] It will be understood that although the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used only to distinguish one element, component, region, layer, or part from another. Therefore, without departing from the teaching herein, “first element,” “first component,” “first region,” “first layer,” or “first part” discussed below may be referred to as a second element, second component, second region, second layer, or second part.

[0068] As used herein, unless the context clearly indicates otherwise, “a,” “an,” “the,” and “at least one” do not indicate a limitation of quantity but are intended to include both the singular and the plural. For example, unless the context clearly indicates otherwise, “element” has the same meaning as “at least one element.” “At least one” should not be construed as limiting “a” or “an.” “Or” means “and / or.” As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. It will also be understood that when the terms “comprising” or “including” are used in this specification, it indicates the presence of the stated features, regions, integrals, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, regions, integrals, steps, operations, elements, components, and / or groups thereof. However, the phrase “consisting of” is intended to exclude the presence of other elements.

[0069] Furthermore, relative terms (such as “below” or “bottom” and “above” or “top”) may be used here to describe the relationship between one element and another (other) element as shown in the accompanying drawings. It will be understood that relative terms are intended to encompass different orientations of the device other than those depicted in the drawings. For example, if the device in the drawings is flipped, an element described as being “below” the other element will subsequently be positioned “above” the other element. Thus, depending on the specific orientation of the drawing, the exemplary term “below” can encompass both “below” and “above” orientations. Similarly, if one of the devices in the drawings is flipped, an element described as being “below” or “under” the other element will subsequently be oriented “above” the other element. Thus, the exemplary terms “below” or “under” can therefore encompass both “above” and “below” orientations.

[0070] As used herein, “about” or “approximately” includes stated values ​​and means: within an acceptable range of deviation from the stated value, as determined by one of ordinary skill in the art, taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations, or within ±30%, ±20%, ±10%, or ±5% of the stated value.

[0071] Exemplary embodiments of the present disclosure are described herein with reference to cross-sectional views, which are schematic illustrations of idealized embodiments. Thus, variations in the shape of the illustrations due to, for example, manufacturing techniques and / or tolerances are contemplated. For example, areas shown or described as flat may typically have rough and / or non-linear characteristics. Furthermore, acute angles shown may be rounded. Therefore, the areas shown in the figures are schematic in nature, and their shapes are not intended to show the precise shape of the areas, nor are they intended to limit the scope of the claims.

[0072] In the following description, exemplary embodiments of the present disclosure will be illustrated with reference to the accompanying drawings.

[0073] Figure 1 This is a plan view illustrating a display device according to an exemplary embodiment of the present disclosure. Figure 2 It is along Figure 1 A sectional view taken by line I-I'.

[0074] According to an exemplary embodiment of this disclosure, the first direction DR1 and the second direction DR2 are different directions that intersect each other. Figure 1 In the plan view, for ease of description, a first direction DR1 is defined as the horizontal direction and a second direction DR2 as the vertical direction. In the exemplary embodiments below, it is assumed that one side of the first direction DR1 indicates the rightward direction in the plan view, and the other side of the first direction DR1 indicates the leftward direction in the plan view; one side of the second direction DR2 indicates the upward direction in the plan view, and the other side of the second direction DR2 indicates the downward direction in the plan view. However, the directions mentioned in the provided exemplary embodiments should be understood as relative directions, and the invention is not necessarily limited to the mentioned directions.

[0075] Reference Figure 1 and Figure 2 Display device 1 can refer to any electronic device that provides a display screen. Examples of display device 1 may include televisions, personal computers (PCs), laptops, computer monitors, electronic billboards, navigation systems, smart devices such as those in the Internet of Things, and portable electronic devices such as mobile phones, smartphones, tablet computers, electronic watches, smartwatches, watch phones, mobile communication terminals, electronic notebooks, e-books, portable multimedia players (PMPs), gaming devices, and digital cameras.

[0076] The display device 1 according to an exemplary embodiment of the present disclosure may include two short sides extending primarily in a first direction DR1 and two long sides extending primarily in a second direction DR2. In a plan view, the display device 1 may have a rectangular shape in which the angle where the long and short sides intersect is a right angle. However, the present disclosure is not limited thereto, and the display device 1 may have various other shapes in a plan view, such as a rectangular shape with rounded corners, a square shape, other polygonal shapes, a circular shape, or an elliptical shape.

[0077] Display device 1 includes a display area DA and a non-display area NDA. The display area DA includes a plurality of pixels, and the non-display area NDA is disposed around the display area DA to at least partially surround the display area DA. The non-display area NDA may not include any pixels. The display area DA may be an area in which an image is displayed, and the non-display area NDA may be an area in which no image is displayed. However, in some exemplary embodiments of this disclosure, an image may be displayed in a limited portion of the non-display area NDA adjacent to the display area DA.

[0078] In some exemplary embodiments of this disclosure, the shape of the display area DA in a plan view may be substantially the same as the shape of the display device 1. For example, the display area DA may have a rectangular shape in a plan view.

[0079] The non-display area NDA can be disposed around the display area DA. In a plan view, the non-display area NDA can surround all sides of the display area DA (four sides in the figures). However, this disclosure is not limited to this; the non-display area NDA can partially surround the display area DA to contact three, two, or one side of the display area DA. Within the non-display area NDA, a panel driving circuit for driving the display panel, a signal pad (or "soldering pad") connected to the panel driving circuit, a touch driving circuit that inputs signals to a touch sensor and receives signals output from the touch sensor, or a touch pad portion connected to the touch driving circuit can be disposed.

[0080] In can Figure 2 In the stacked structure of the display device 1 seen in the image, the display device 1 may include a display panel DP and a touch sensor TSL disposed on the display panel DP. The display device 1 may also include a polarizing film POL disposed on the touch sensor TSL and a window WD disposed on the polarizing film POL.

[0081] The display panel (DP) may include a self-emitting element. The self-emitting element may include at least one of organic light-emitting diodes (OLEDs), quantum dot OLEDs, inorganic-based micro-LEDs (e.g., micro LEDs), and inorganic-based nano-LEDs (e.g., nano LEDs). In the following description, for ease of explanation, the case where the self-emitting element is an organic light-emitting diode will be described as an example.

[0082] In the stacked structure of the display panel DP, the display panel DP includes a first substrate 110, a second substrate 210 disposed on the first substrate 110, and a component layer DSL disposed between the first substrate 110 and the second substrate 210. Furthermore, the display panel DP may also include a sealing material S, which is disposed at the edge portions of the first substrate 110 and the second substrate 210, and between the first substrate 110 and the second substrate 210, to bond the first substrate 110 and the second substrate 210 to each other.

[0083] The first substrate 110 is the substrate supporting the element layer DSL. In an exemplary embodiment of this disclosure, the first substrate 110 may be an insulating substrate formed of glass, quartz, ceramic, plastic, etc.

[0084] A component layer DSL is disposed on the first substrate 110. In an exemplary embodiment of this disclosure, the component layer DSL may include a thin-film transistor (TFT), a capacitor, a light-emitting element, and a plurality of display signal lines disposed on the first substrate 110. The plurality of display signal lines may include scan lines that transmit scan signals to each of the pixels and data lines that transmit data signals to each of the pixels.

[0085] The second substrate 210 can be a packaging substrate that prevents moisture and oxygen from penetrating from the outside into the element layer DSL. The second substrate 210 can be formed of transparent glass. However, this disclosure is not limited to this, and the second substrate 210 can also be formed of polymer film or the like.

[0086] A sealing material S may be disposed between the first substrate 110 and the second substrate 210. The sealing material S may be disposed in the non-display area NDA to completely surround the display area DA in a plan view. The sealing material S can bond the first substrate 110 and the second substrate 210 to each other and can prevent impurities such as moisture and oxygen from penetrating from the outside into the portion between the first substrate 110 and the second substrate 210. In some exemplary embodiments of this disclosure, the sealing material S can be formed by placing a sealing material such as a glass frit between the first substrate 110 and the second substrate 210 and irradiating the sealing material with a laser to melt the sealing material.

[0087] A touch sensor (TSL) can be mounted on a display panel (DP). The touch sensor (TSL) can be a capacitive sensor and can obtain the coordinates of the touch input point. The capacitance type can be self-capacitance or mutual capacitance. In the following description, for ease of description, the case in which the touch sensor (TSL) is formed with a mutual capacitance structure will be described as an example, but the invention is not limited to this.

[0088] In an exemplary embodiment of this disclosure, the touch sensor TSL may be disposed on a second substrate 210 in the display panel DP.

[0089] In some exemplary embodiments of this disclosure, the portion of the touch sensor TSL disposed in the display area DA may include an electrode portion, and the portion of the touch sensor TSL disposed in the non-display area NDA may include a touch signal line that transmits signals to and / or receives signals from the electrode portion, and a touch pad portion connected to the touch signal line.

[0090] In some exemplary embodiments of this disclosure, a separate adhesive layer (e.g., an adhesive layer, etc.) may not be disposed between the touch sensor TSL and the second substrate 210. For example, at least one of the electrode portion, touch signal line, and touch pad portion of the touch sensor TSL may be directly disposed above the second substrate 210. Optionally, when a separate insulating film is disposed between the touch sensor TSL and the second substrate 210, at least one of the electrode portion, touch signal line, and touch pad portion of the touch sensor TSL may be directly disposed above the insulating film.

[0091] A polarizing film (POL) can be applied to the touch sensor (TSL). The polarizing film (POL) can be used to reduce external light reflection.

[0092] The window WD can be set on the polarizing film POL. The window WD can include rigid materials such as glass or quartz.

[0093] The stacking structure of the touch sensor TSL will be described below.

[0094] Figure 3 This is a schematic cross-sectional view illustrating a touch sensor according to an exemplary embodiment of the present disclosure.

[0095] Reference Figure 3 The touch sensor TSL may include a first conductive layer ML1 disposed on the second substrate 210, a second conductive layer ML2 disposed on the first conductive layer ML1, an insulating layer ILD disposed on the second conductive layer ML2, and a third conductive layer ML3 disposed on the insulating layer ILD.

[0096] The first conductive layer ML1 may include a sensing region SA disposed below (see below). Figure 8 Multiple first sub-sensing electrodes 311 in ) (see Figure 9 ) and the first sub-sensing electrodes 311 that are adjacent to each other (see Figure 9 The connecting part 313 (see) Figure 9 ).

[0097] Second sub-sensing electrode 331 (see Figure 9 ) can be used with the first sub-sensing electrode 311 (see Figure 9 Physically separated. The second sub-sensing electrode 331 (see...) Figure 9 It can be used with the first sub-sensing electrode 311 (see...) Figure 9 Electrical insulation. The first conductive layer ML1 may also include a non-sensing region NSA (see below) disposed thereon. Figure 8 The first wiring section LP1 of the touch signal line in ) (see Figure 16 ).

[0098] The first conductive layer ML1 may include a light-transmitting conductive material. As used herein, the phrase "light-transmitting" means that the material is at least partially transparent or translucent. Examples of light-transmitting conductive materials include indium tin oxide (ITO), indium zinc oxide (IZO), aluminum-doped zinc oxide (AZO), indium tin zinc oxide (ITZO), zinc oxide (ZnO), tin oxide (SnO2), carbon nanotubes, graphene, conductive polymers (e.g., poly(3,4-ethylenedioxythiophene) (PEDOT)), and silver nanowires (AgNW). As described below, the sensing region SA (see Figure 8 The display area DA of the display panel DP is at least partially superimposed on the sensing area SA (see...). Figure 8 The first sub-sensing electrode 311 in ) (see Figure 9 ), second sub-sensing electrode 331 (see Figure 9 ) and connecting part 313 (see Figure 9 It may include a conductive material that is transparent to light, and allows light output from the display panel DP to be transmitted through it.

[0099] In an exemplary embodiment of this disclosure, the first conductive layer ML1 may be formed as including ITO having an amorphous structure. The resistance of ITO having an amorphous structure in which the interatomic spacing is non-uniform can be relatively higher than the resistance of the material of the second conductive layer ML2, which will be described below, and also higher than the resistance of ITO having a crystalline structure in which the interatomic spacing is more uniform than that in the amorphous structure. In this way, when the resistance of the conductive layer constituting the touch sensor TSL is high, the power consumed to drive the touch sensor TSL increases. Furthermore, when the materials listed above as examples of materials for the first conductive layer ML1 are used in the electrode portion for recognizing touch input (e.g., the sensing area SA (see...)...)... Figure 8 When used in the sub-sensing electrode of the touch sensor TSL or in the connection section, resistance-capacitance (RC) delay may occur due to high resistance. Therefore, in order to make the conductive layer constituting the electrode section of the touch sensor TSL both transparent and have low resistance, the third conductive layer ML3, which will be described below, can be electrically connected to the first conductive layer ML1 in the electrode section.

[0100] The second conductive layer ML2 may include a layer disposed in the non-sensing region NSA (see Figure 8 The second wiring section LP2 in ) (see Figure 16 The second conductive layer ML2 may not be provided in the sensing area SA (see...). Figure 8 )middle.

[0101] The second conductive layer ML2 may include an opaque conductive material. For example, the second conductive layer ML2 may include metals such as gold (Au), silver (Ag), aluminum (Al), molybdenum (Mo), chromium (Cr), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), and platinum (Pt) or alloys thereof. In some exemplary embodiments of this disclosure, the second conductive layer ML2 may be formed of a single-layer structure or a multi-layer structure. As an example, the second conductive layer ML2 may have a Ti / Al / Ti three-layer structure.

[0102] An insulating layer ILD can be disposed on the second conductive layer ML2. The insulating layer ILD can span the sensing region SA (see...). Figure 8 ) and non-sensing area NSA (see Figure 8 The insulating layer ILD can be disposed between the third conductive layer ML3 and the second conductive layer ML2. In some exemplary embodiments of this disclosure, the insulating layer ILD may include an insulating material. In some exemplary embodiments of this disclosure, the insulating material may be an inorganic insulating material or an organic insulating material. Inorganic insulating materials may include at least one of alumina, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. Organic insulating materials may include at least one of acrylic resin, methacrylate resin, polyisoprene, vinyl resin, epoxy resin, polyurethane resin, cellulose resin, siloxane resin, polyimide resin, polyamide resin, and perylene resin.

[0103] The third conductive layer ML3 can be disposed on the insulating layer ILD. The third conductive layer ML3 may include layers uniformly disposed in the sensing area SA (see Figure 8 The third sub-sensing electrode 315 in ) (see Figure 9 ) and the fourth sub-sensing electrode 335 (see Figure 9 Third sub-sensing electrode 315 (see...) Figure 9 ) and the fourth sub-sensing electrode 335 (see Figure 9 They can be electrically connected to the first sub-sensing electrode 311 disposed in the first conductive layer ML1 (see...). Figure 9 ) and the second sub-sensing electrode 331 (see Figure 9 Accordingly, the sensing area SA can be reduced (see Figure 8 The resistance of the electrode portion itself. This will be described in more detail below. The third conductive layer ML3 may also include a layer disposed in the non-sensing region NSA (see Figure 8 The capacitor pattern LP3 in ) (see Figure 16 ).

[0104] The third conductive layer ML3 may include a light-transmitting conductive material. Examples of light-transmitting conductive materials include ITO, IZO, AZO, ITZO, ZnO, SnO2, carbon nanotubes, graphene, conductive polymers (e.g., PEDOT), and AgNW. In some exemplary embodiments of this disclosure, the third conductive layer ML3 may include the same material as the first conductive layer ML1.

[0105] Figure 4 This is a schematic plan view illustrating a display panel according to an exemplary embodiment of the present disclosure. Figure 5 yes Figure 4 The exemplary equivalent circuit diagram of the pixel is shown in the figure. Figure 6 yes Figure 5 A schematic cross-sectional view of the pixels shown.

[0106] Reference Figure 4 Multiple signal lines SGL can be disposed on the first substrate 110 in the display area DA of the display panel DP, and signal pads DPD can be disposed on the first substrate 110 in the non-display area NDA. The display area DA may include multiple pixels PX. A sealing material S completely surrounding the display area DA can be disposed on the first substrate 110 in the non-display area NDA.

[0107] Signal lines SGL and signal pads DPD can be included in the component layer DSL.

[0108] The signal line SGL can include scan lines GL, data lines DL, and power lines PL. Each scan line GL is connected to multiple pixels PX and transmits scan signals to the corresponding pixels PX. Each data line DL is connected to multiple pixels PX and transmits data signals to the corresponding pixels PX. The power line PL is connected to multiple pixels PX and transmits drive voltage to each pixel PX.

[0109] The signal pad DPD can be located in the non-display area NDA and connected to the signal line SGL, such as the data line DL. The signal pad DPD can receive data signals from external components (e.g., the panel drive circuit that drives the display panel DP).

[0110] In exemplary embodiments of this disclosure, each scan line GL may extend primarily in the first direction DR1, and each data line DL may extend primarily in the second direction DR2. In some exemplary embodiments of this disclosure, the power line PL may extend primarily in the second direction DR2, like the data line DL, but this disclosure is not limited thereto.

[0111] Reference Figure 5Each pixel PX may include a light-emitting element (ELD). As described above, the light-emitting element ELD may be an organic light-emitting diode (OLED). However, this disclosure is not limited to this; the light-emitting element ELD may be any of a quantum dot light-emitting diode, an inorganic-based micro light-emitting diode, or an inorganic-based nano light-emitting diode. The light-emitting element ELD may be a front-emitting diode or a back-emitting diode.

[0112] Each pixel PX may also include a pixel driving circuit for driving the light-emitting element ELD, a first transistor T1 (or a switching transistor), a second transistor T2 (or a driving transistor), and a capacitor Cst. A first source voltage ELVDD can be provided to the second transistor T2, and a second source voltage ELVSS can be provided to the light-emitting element ELD. The second source voltage ELVSS may be a voltage lower than the first source voltage ELVDD.

[0113] The first transistor T1 outputs a data signal applied to the data line DL in response to a scan signal applied to the scan line GL. The capacitor Cst is charged with a voltage corresponding to the data signal received from the first transistor T1. The second transistor T2 is connected to the light-emitting element ELD. The second transistor T2 controls the drive current flowing in the light-emitting element ELD according to the amount of charge stored in the capacitor Cst.

[0114] Figure 5 The equivalent circuit shown is merely an example, and this disclosure is not intended to be limited thereto. Each pixel PX may include three or more transistors and a larger number of capacitors than are shown and described herein.

[0115] exist Figure 6 The image shows the display panel DP and... Figure 5 The diagram shows a cross-section of the equivalent circuit corresponding to the portion shown, along with the second substrate 210 and the touch sensor TSL. Additionally, the polarizing film POL and the window WD are also shown.

[0116] The buffer membrane BFL can be disposed on the first substrate 110.

[0117] The semiconductor pattern OSP1 of the first transistor T1 (hereinafter referred to as "first semiconductor pattern OSP1") and the semiconductor pattern OSP2 of the second transistor T2 (hereinafter referred to as "second semiconductor pattern OSP2") can be disposed on the buffer film BFL. The materials of the first semiconductor pattern OSP1 and the second semiconductor pattern OSP2 can be selected from the group consisting of amorphous silicon, polycrystalline silicon, and metal oxide semiconductors. In some exemplary embodiments of this disclosure, either the first semiconductor pattern OSP1 or the second semiconductor pattern OSP2 can be formed of polycrystalline silicon, and the other of the first semiconductor pattern OSP1 and the second semiconductor pattern OSP2 can be formed of metal oxide semiconductors.

[0118] A gate insulating film 111 is disposed on a first semiconductor pattern OSP1 and a second semiconductor pattern OSP2. A control electrode GE1 (hereinafter referred to as "first gate electrode GE1") of the first transistor T1 and a control electrode GE2 (hereinafter referred to as "second gate electrode GE2") of the second transistor T2 are disposed on the gate insulating film 111. When the first gate electrode GE1 and the second gate electrode GE2 are disposed on the same layer, the first gate electrode GE1 and the second gate electrode GE2 can be aligned with the scan line GL (see...). Figure 5 They are manufactured using the same photolithography process. However, this disclosure is not limited to this; the first gate electrode GE1 and the second gate electrode GE2 can be disposed on different layers. In such a case, only one of the first gate electrode GE1 and the second gate electrode GE2 can be associated with the scan line GL (see...). Figure 5 They are manufactured using the same photolithography process.

[0119] A second gate insulating film 112 covering the first gate electrode GE1 and the second gate electrode GE2 is disposed on the gate insulating film 111. On the second gate insulating film 112, the drain electrode DE1 (hereinafter referred to as "first drain electrode DE1") and the source electrode SE1 (hereinafter referred to as "first source electrode SE1") of the first transistor T1 and the drain electrode DE2 (hereinafter referred to as "second drain electrode DE2") and the source electrode SE2 (hereinafter referred to as "second source electrode SE2") of the second transistor T2 are disposed.

[0120] The first drain electrode DE1 and the first source electrode SE1 are connected to the first semiconductor pattern OSP1 through the input contact hole CNTa and the output contact hole CNTb passing through the gate insulating film 111 and the second gate insulating film 112. The second drain electrode DE2 and the second source electrode SE2 are connected to the second semiconductor pattern OSP2 through the input contact hole CNTc and the output contact hole CNTd passing through the gate insulating film 111 and the second gate insulating film 112. In an exemplary embodiment of this disclosure, one of the first transistor T1 and the second transistor T2 may be modified to have a bottom gate structure.

[0121] An intermediate organic film 113 covering the first drain electrode DE1, the second drain electrode DE2, the first source electrode SE1, and the second source electrode SE2 is disposed on the second gate insulating film 112. The intermediate organic film 113 can provide a flat surface.

[0122] A pixel-defining film (PDL) and a light-emitting element (ELD) can be disposed on an intermediate organic film 113. The pixel-defining film (PDL) may include an organic material. An anode electrode (AE) is disposed on the intermediate organic film 113. The anode electrode (AE) is connected to a second source electrode (SE2) through an anode contact hole (CNTe) passing through the intermediate organic film 113. An opening (OPN) is defined in the pixel-defining film (PDL). The opening (OPN) of the pixel-defining film (PDL) exposes at least a portion of the anode electrode (AE).

[0123] The pixels PX of the display area DA may include a light-emitting area EMA and a non-light-emitting area NEM adjacent to the light-emitting area EMA. The non-light-emitting area NEM may at least partially surround the light-emitting area EMA. In this embodiment, the light-emitting area EMA is defined to correspond to the portion of the anode electrode AE ​​exposed through the opening OPN.

[0124] The hole injection / transport layer HCL can be jointly disposed in the emitting region EMA and the non-emitting region NEM. The hole injection / transport layer HCL can be jointly formed in the pixel PX, but this disclosure is not limited thereto.

[0125] The emissive layer (EML) is disposed on the hole injection / transport layer (HCL). The EML can generate light of a predetermined color. The EML can be disposed in the region corresponding to the aperture (OPN). For example, the EML can be formed individually in each pixel (PX).

[0126] When the light-emitting element (ELD) is an organic light-emitting element, the light-emitting layer (EML) may include organic materials. For example, in some exemplary embodiments of this disclosure, the light-emitting layer (EML) may be an organic light-emitting layer.

[0127] In this embodiment, a patterned emissive layer EML is shown as an example, but the emissive layer EML can also be disposed collectively in the pixel PX. In this case, the emissive layer EML can generate white light. In some exemplary embodiments of this disclosure, the emissive layer EML can have a multi-layer structure referred to as a "serial structure".

[0128] An electron injection / transport layer (ECL) is disposed on the emissive layer (EML). The ECL can be formed together in the pixel (PX), but this disclosure is not limited thereto.

[0129] The cathode electrode CE is disposed on the electron injection / transport layer ECL. The cathode electrodes CE are also disposed together in the pixel PX.

[0130] The second substrate 210 can be disposed on the cathode electrode CE, and the cathode electrode CE and the second substrate 210 can be spaced apart from each other. The aforementioned touch sensor TSL can be disposed on the second substrate 210.

[0131] The anode electrode AE, hole injection / transport layer HCL, light-emitting layer EML, electron injection / transport layer ECL, and cathode electrode CE disposed in the light-emitting region EMA can constitute a light-emitting element ELD.

[0132] Figure 7 It is based on Figure 4 The equivalent circuit diagram of the pixel variant example shown in the figure.

[0133] Reference Figure 7 Each pixel may include a light-emitting element (ELD), multiple transistors T1 to T7, and a capacitor Cst. The capacitor Cst may include a first electrode and a second electrode.

[0134] Each of transistors T1 to T7 includes a gate electrode, a first electrode, and a second electrode. Either the first electrode or the second electrode of each of transistors T1 to T7 is a source electrode, and the other of the first electrode or the second electrode of each of transistors T1 to T7 is a drain electrode.

[0135] The gate electrode of the first transistor T1 is connected to the first electrode of the capacitor Cst. The first electrode of the first transistor T1 is connected to the power supply line PL, which provides the first source voltage ELVDD, via the fifth transistor T5.

[0136] The second electrode of the first transistor T1 is connected to the anode electrode of the light-emitting element ELD via the sixth transistor T6. The first transistor T1 receives data signals according to the switching operation of the second transistor T2 and supplies drive current to the light-emitting element ELD.

[0137] The gate electrode of the second transistor T2 is connected to the first scan line GL1, which provides the first scan signal. The first electrode of the second transistor T2 is connected to the data line DL, which provides the data signal. The second electrode of the second transistor T2 is connected to the first electrode of the first transistor T1 and simultaneously connected to the power line PL, which provides the first source voltage ELVDD, via the fifth transistor T5. The second transistor T2 is turned on according to the first scan signal and performs a switching operation in which the data signal is transmitted to the first electrode of the first transistor T1.

[0138] The gate electrode of the third transistor T3 is connected to the first scan line GL1, which provides the first scan signal. The first electrode of the third transistor T3 is connected to the second electrode of the first transistor T1 and simultaneously connected to the anode electrode of the light-emitting element ELD via the sixth transistor T6. The second electrode of the third transistor T3 is also connected to the first electrode of the capacitor Cst, the first electrode of the fourth transistor T4, and the gate electrode of the first transistor T1. The third transistor T3 is turned on according to the first scan signal and connects the gate electrode and the second electrode of the first transistor T1 to each other, thus diode-connecting the first transistor T1. Therefore, a voltage difference equal to the threshold voltage of the first transistor T1 occurs between the first electrode and the gate electrode of the first transistor T1. Changes in the threshold voltage of the first transistor T1 can be compensated by supplying a data signal compensated for by the threshold voltage to the gate electrode of the first transistor T1.

[0139] The gate electrode of the fourth transistor T4 is connected to the second scan line GL2, which provides the second scan signal. The second electrode of the fourth transistor T4 is connected to the initialization voltage line VINTL, which provides the initialization voltage. The first electrode of the fourth transistor T4 is simultaneously connected to the first electrode of capacitor Cst, the second electrode of the third transistor T3, and the gate electrode of the first transistor T1. The fourth transistor T4 is turned on according to the second scan signal and performs the operation of transmitting the initialization voltage to the gate electrode of the first transistor T1 to initialize the voltage of the gate electrode of the first transistor T1.

[0140] The gate electrode of the fifth transistor T5 is connected to the light emission control line EMSL, which provides the light emission control signal. The first electrode of the fifth transistor T5 is connected to the power supply line PL, which provides the first source voltage ELVDD. The second electrode of the fifth transistor T5 is connected to the first electrode of the first transistor T1 and the second electrode of the second transistor T2.

[0141] The gate electrode of the sixth transistor T6 is connected to the light-emitting control line EMSL, which provides the light-emitting control signal. The first electrode of the sixth transistor T6 is connected to the second electrode of the first transistor T1 and the first electrode of the third transistor T3. The second electrode of the sixth transistor T6 is connected to the anode electrode of the light-emitting element ELD.

[0142] The fifth transistor T5 and the sixth transistor T6 are turned on simultaneously according to the light emission control signal, and therefore, the drive current flows in the light-emitting element ELD.

[0143] The gate electrode of the seventh transistor T7 is connected to the third scan line GL3, which provides the third scan signal. The first electrode of the seventh transistor T7 is connected to the anode electrode of the light-emitting element ELD. The second electrode of the seventh transistor T7 is connected to the initialization voltage line VINTL. The seventh transistor T7 is turned on according to the third scan signal, thus initializing the anode electrode of the light-emitting element ELD.

[0144] The second electrode of capacitor Cst is connected to the power supply line PL. The first electrode of capacitor Cst is simultaneously connected to the gate electrode of the first transistor T1, the second electrode of the third transistor T3, and the first electrode of the fourth transistor T4. The second source voltage ELVSS can be supplied to the cathode electrode of the light-emitting element ELD.

[0145] The light-emitting element ELD receives drive current from the first transistor T1 and emits light to display an image.

[0146] Figure 8 This is a plan view of a touch sensor according to an exemplary embodiment of the present disclosure. Figure 9 yes Figure 8 A magnified plan view of region A. Figure 10 yes Figure 9 A magnified view of a portion of it.

[0147] Reference Figure 3 and Figures 8 to 10 As described above, the touch sensor TSL is disposed on the second substrate 210. For example, the second substrate 210 can be used as the base layer of the touch sensor TSL.

[0148] A touch sensor (TSL) defines a sensing area (SA) and a non-sensing area (NSA). The sensing area (SA) is the region of the touch sensor (TSL) that senses touch input. The non-sensing area (NSA) does not directly sense touch input but can be used to prevent contact between the touch signal lines connected to the electrodes that sense the touch input and to prevent the touch signal lines from disconnecting due to static electricity. For example, touch grounding wiring adjacent to the touch signal lines and anti-static wiring adjacent to the touch signal lines can be provided in the non-sensing area (NSA) and used to assist the sensing area (SA) in sensing touch input.

[0149] Sensing area SA can be with Figure 1 The display area DA of the display device 1 shown in the figure Figure 4 The display area DA of the display panel DP shown corresponds to this. Furthermore, the non-sensing area NSA can be associated with... Figure 1 The non-display area NDA of the display device 1 shown in the figure Figure 4 The non-display area NDA of the display panel DP is shown in the figure. In some exemplary embodiments of this disclosure, the sensing area SA may be substantially the same as the display area DA of the display panel DP, and the non-sensing area NSA may be substantially the same as the non-display area NDA of the display panel DP.

[0150] The touch sensor TSL may include a first electrode portion 310 and a second electrode portion 330, and may also include touch signal lines TL1 and TL2 and touch pad portions TPD1 and TPD2.

[0151] The first electrode portion 310 and the second electrode portion 330 can be disposed in the sensing area SA, and the touch pad portions TPD1 and TPD2 and the touch signal lines TL1 and TL2 can be disposed in the non-sensing area NSA. One end of the first touch signal line TL1 can be connected to the first electrode portion 310, and the other end of the first touch signal line TL1 can be connected to the first touch pad portion TPD1. One end of the second touch signal line TL2 can be connected to the second electrode portion 330, and the other end of the second touch signal line TL2 can be connected to the second touch pad portion TPD2. Multiple first touch signal lines TL1 can be provided, and multiple second touch signal lines TL2 can be provided.

[0152] The sensing area SA will be described in more detail below.

[0153] A first electrode portion 310 and a second electrode portion 330 insulated from the first electrode portion 310 can be disposed on the second substrate 210. Either the first electrode portion 310 or the second electrode portion 330 can be a driving electrode, and the other can be a sensing electrode. In this embodiment, the case where the first electrode portion 310 is a driving electrode and the second electrode portion 330 is a sensing electrode is described as an example. When the first electrode portion 310 is a driving electrode and the second electrode portion 330 is a sensing electrode, the first touch signal line TL1 connected to the first electrode portion 310 can be a touch driving signal line, and the second touch signal line TL2 connected to the second electrode portion 330 can be a touch sensing signal line. Similarly, the first touch pad portion TPD1 connected to the first touch signal line TL1 can be a touch driving pad portion, and the second touch pad portion TPD2 connected to the second touch signal line TL2 can be a touch sensing pad portion.

[0154] The first electrode portion 310 may extend primarily in the second direction DR2. Multiple first electrode portions 310 may be provided, and these multiple first electrode portions 310 may be spaced apart from each other in the first direction DR1. Each first electrode portion 310 may include multiple first sub-sensing electrodes 311 spaced apart from each other in the second direction DR2, a connecting portion 313 physically connecting adjacent first sub-sensing electrodes 311, and a third sub-sensing electrode 315 disposed on and electrically connected to the first sub-sensing electrodes 311. The first sub-sensing electrodes 311 and the connecting portion 313 connecting adjacent first sub-sensing electrodes 311 of the first electrode portion 310 may have a linear shape extending primarily in the second direction DR2.

[0155] The second electrode portion 330 may extend primarily along the first direction DR1. Multiple second electrode portions 330 may be provided, and these portions may be spaced apart from each other along the second direction DR2. The second electrode portion 330 may be electrically insulated from the first electrode portion 310. Each second electrode portion 330 may include multiple second sub-sensing electrodes 331 spaced apart from each other along the first direction DR1 and a fourth sub-sensing electrode 335 electrically connected to the second sub-sensing electrodes 331. The second sub-sensing electrodes 331 may be spaced apart from their adjacent first sub-sensing electrodes 311, with a predetermined separating space SP disposed therebetween, and the second sub-sensing electrodes 331 may be electrically insulated from the first sensing electrodes 311. Meanwhile, although the plurality of first sub-sensing electrodes 311 spaced apart from each other in the second direction DR2 are electrically connected by a connecting portion 313 disposed in the same layer (first conductive layer ML1) and form a linear shape, as described above, since the plurality of second sub-sensing electrodes 331 disposed in the same layer as the first sub-sensing electrodes 311 and spaced apart from each other in the first direction DR1 are insulated from the first electrode portion 310, adjacent second sub-sensing electrodes 331 can be electrically connected by a fourth sub-sensing electrode 335. The fourth sub-sensing electrode 335 is disposed in a layer (third conductive layer ML3) different from the first conductive layer ML1 in which the first sub-sensing electrodes 311, second sub-sensing electrodes 331 and connecting portions 313 are disposed. The fourth sub-sensing electrode 335 can be spaced apart from the adjacent third sub-sensing electrode 315, and a predetermined separating space SP is disposed therebetween, and the fourth sub-sensing electrode 335 can be electrically insulated from the third sub-sensing electrode 315.

[0156] The first sub-sensing electrode 311, the connecting portion 313 and the third sub-sensing electrode 315 of the first electrode portion 310 can form a planar pattern, and the second sub-sensing electrode 331 and the fourth sub-sensing electrode 335 of the second electrode portion 330 can form a planar pattern.

[0157] At least some of the first sub-sensing electrode 311 and the second sub-sensing electrode 331 may have a substantially rhomboid shape. Some of the first sub-sensing electrode 311 and the second sub-sensing electrode 331 may have a shape obtained by cutting the rhomboid shape (e.g., the shape of a portion of the rhomboid). For example, all the first sub-sensing electrodes 311 and the second sub-sensing electrode 331 may have a rhomboid shape except for the first sub-sensing electrodes 311 and the second sub-sensing electrode 331 disposed at the two ends in the extending direction, and the first sub-sensing electrodes 311 and the second sub-sensing electrode 331 disposed at the two ends in the extending direction may have a triangular shape obtained by cutting the rhomboid shape in half.

[0158] In this specification, "rhomboid shape" or "basic (approximate) rhomboid shape" includes not only the shape formed by connecting four line segments that have a completely linear shape extending in any direction, but also the shape formed by connecting curves or concave and convex parts, as long as the line segments formed by approximately connecting curves or concave and convex parts constitute a rhomboid shape.

[0159] For example, such as Figure 9 and Figure 10 As shown, recesses and convexities can be formed in at least some portions of the rhomboid-shaped line segments constituting the first sub-sensing electrode 311 and the second sub-sensing electrode 331. The opposing line segments of the first sub-sensing electrode 311 and the second sub-sensing electrode 331 can both include recesses and convexities, and the opposing line segments including recesses and convexities can extend while maintaining the same spacing between them. For example, when the line segments of the first sub-sensing electrode 311 sequentially include convexities, recesses, and convexities, correspondingly, the line segments of the adjacent second sub-sensing electrode 331 opposite to the line segments of the first sub-sensing electrode 311 can sequentially include recesses, convexities, and recesses. The separation space SP between the first sub-sensing electrode 311 and the second sub-sensing electrode 331 can have a serrated shape, and the opposing line segments of the first sub-sensing electrode 311 and the second sub-sensing electrode 331 include recesses and convexities.

[0160] Since the concave and convex portions are formed in at least some portions of the rhomboid-shaped line segments constituting the first sub-sensing electrode 311 and the second sub-sensing electrode 331, moiré phenomena caused by the first sub-sensing electrode 311 and the second sub-sensing electrode 331 can be prevented when the user views the image in the display device 1.

[0161] The dimensions and shapes of the first sub-sensing electrode 311 and the second sub-sensing electrode 331, both having a rhomboid shape, can be substantially the same as each other. Similarly, the dimensions and shapes of the first sub-sensing electrode 311 and the second sub-sensing electrode 331, both having a triangular shape, can also be substantially the same as each other. However, the invention is not limited to the exemplary embodiments described above, and the shapes and dimensions of the first and second sub-sensing electrodes 311 and 331 can be modified in various ways. For example, the shapes of the first and second sub-sensing electrodes 311 and 331 can be modified to various shapes, such as quadrilaterals, pentagons, circles, and stripes.

[0162] The dummy electrode DE can also be disposed in the separation space SP between the first sub-sensing electrode 311 and the second sub-sensing electrode 331. The dummy electrode DE can also be disposed in the first conductive layer ML1. For example, the first conductive layer ML1 can also include the dummy electrode DE disposed in the separation space SP between the first sub-sensing electrode 311 and the second sub-sensing electrode 331. When the first sub-sensing electrode 311 and the second sub-sensing electrode 331 are disposed too close to each other, excessive capacitance will be formed. Therefore, the first sub-sensing electrode 311 and the second sub-sensing electrode 331 can be spaced apart from each other by the aforementioned separation space SP. Meanwhile, in the separation space SP, if no conductive layer is disposed, the insulating layer ILD is exposed from the top. Due to the refractive index difference between the exposed insulating layer ILD and the adjacent conductive layer, patterns may be identified from the outside. Therefore, by arranging the dummy electrode DE in the separation space SP, the degree to which patterns are identified can be reduced.

[0163] The dummy electrode DE can be a floating electrode that is physically spaced apart from and not electrically connected to the sub-sensing electrodes 311 and 331.

[0164] The width of the dummy electrode DE can be smaller than the width of the separating space SP, and the dummy electrode DE can have substantially the same shape as the separating space SP between the first sub-sensing electrode 311 and the second sub-sensing electrode 331. Figure 9 The diagram shows a dummy electrode DE with a pattern extending primarily in the direction of the relative line segments of the first sub-sensing electrode 311 and the second sub-sensing electrode 331. However, this disclosure is not limited to this, and the dummy electrode DE may also be formed as a plurality of patterns spaced apart in the extension direction.

[0165] The third sub-sensing electrode 315 may at least partially overlap with the first sub-sensing electrode 311 in the thickness direction. The third sub-sensing electrode 315 of the first electrode portion 310 may be configured as a plurality of third sub-sensing electrodes 315. Similar to the arrangement of the plurality of first sub-sensing electrodes 311, the plurality of third sub-sensing electrodes 315 of the first electrode portion 310 may be spaced apart from each other in the second direction DR2. The third sub-sensing electrode 315 may not overlap with the connecting portion 313 of the first electrode portion 310. In the plan view, the third sub-sensing electrodes 315 adjacent to each other in the second direction DR2 may be spaced apart from each other, and the connecting portion 313 is disposed therebetween. In some exemplary embodiments of this disclosure, the third sub-sensing electrode 315 may partially overlap with the connecting portion 313 of the first electrode portion 310; however, even in this case, the third sub-sensing electrode 315 is spaced apart from the fourth sub-sensing electrode 335.

[0166] In the plan view, the insulating layer ILD may include a first contact hole CNT1 that is at least partially stacked with the third sub-sensing electrode 315. The third sub-sensing electrode 315 and the first sub-sensing electrode 311, which are at least partially stacked with each other, can be electrically connected through the first contact hole CNT1. In this way, the total resistance of the first electrode portion 310 can be reduced. In the figures, although two first contact holes CNT1 are shown stacked with a single third sub-sensing electrode 315, the number of first contact holes CNT1 corresponding to a single third sub-sensing electrode 315 is not limited to this, and there may be one first contact hole CNT1 or three or more first contact holes CNT1.

[0167] The shape of the third sub-sensing electrode 315 can be substantially the same as the shape of the first sub-sensing electrode 311. For example, at least some of the third sub-sensing electrodes 315 can have a substantially rhomboid shape.

[0168] Some third sub-sensing electrodes 315 may have a shape obtained by cutting a rhombus shape (e.g., a rhombus portion). For example, all third sub-sensing electrodes 315 may have a rhombus shape except for the third sub-sensing electrodes 315 disposed at the two ends in the extending direction, and the third sub-sensing electrodes 315 disposed at the two ends in the extending direction may have a triangular shape obtained by cutting the rhombus shape in half.

[0169] The dimensions and shapes of the first sub-sensing electrode 311 and the third sub-sensing electrode 315, both having a rhomboid shape, can be substantially the same as each other. Similarly, the dimensions and shapes of the first sub-sensing electrode 311 and the third sub-sensing electrode 315, both having a triangular shape, can be substantially the same as each other. Furthermore, similar to the shape of the first sub-sensing electrode 311 stacked with the third sub-sensing electrode 315 in the thickness direction, recesses and protrusions can be formed in at least some portions of the line segments constituting the rhomboid or triangular shape of the third sub-sensing electrode 315. The rhomboid or triangular shape of the third sub-sensing electrode 315 formed by the line segments in which recesses and protrusions are formed in at least some portions can be the same as the shape of the first sub-sensing electrode 311, which is arranged to be stacked with the third sub-sensing electrode 315 in the thickness direction. For example, the planar profile of the first sub-sensing electrode 311 corresponding to the third sub-sensing electrode 315 in the thickness direction can be exactly the same as the planar profile of the third sub-sensing electrode 315.

[0170] The fourth sub-sensing electrode 335 may be at least partially superimposed on the second sub-sensing electrode 331 and the space between adjacent second sub-sensing electrodes 331 in the thickness direction. The fourth sub-sensing electrode 335 of the second electrode portion 330 may have a linear shape that extends mainly in the first direction DR1.

[0171] The fourth sub-sensing electrode 335 can be at least partially superimposed on the connection portion 313 of the first electrode portion 310. As described above, because the fourth sub-sensing electrode 335 is disposed in a third conductive layer ML3, which is different from the first conductive layer ML1 in which the connection portion 313 is disposed, the fourth sub-sensing electrode 335 can be electrically insulated from the connection portion 313 of the first electrode portion 310 even when the fourth sub-sensing electrode 335 is superimposed on the connection portion 313 of the first electrode portion 310. The fourth sub-sensing electrode 335 can be spaced apart from the third sub-sensing electrode 315, which is disposed in the same layer (third conductive layer ML3) with a separating space SP disposed therebetween.

[0172] The insulating layer ILD may also include second contact holes CNT2 configured to overlap with the fourth sub-sensing electrode 335 in a plan view. The fourth sub-sensing electrode 335 and the second sub-sensing electrode 331, which are overlapped, can be electrically connected through the second contact holes CNT2. In this way, the total resistance of the second electrode portion 330 can be reduced. In the figures, although two second contact holes CNT2 are shown corresponding to a single second sub-sensing electrode 331, the number of second contact holes CNT2 corresponding to a single second sub-sensing electrode 331 is not limited to this, and there may be one second contact hole CNT2 or three or more second contact holes CNT2.

[0173] Except that the linear shape of the fourth sub-sensing electrode 335 extends mainly in the first direction DR1, the shape of the fourth sub-sensing electrode 335 can be substantially the same as the linear shape of the first electrode portion 310 that extends mainly in the second direction DR2 and is connected to a plurality of first sub-sensing electrodes 311 and a connecting portion 313. The plurality of first sub-sensing electrodes 311 are disposed in the second direction DR2, and the connecting portion 313 connects the first sub-sensing electrodes 311.

[0174] Furthermore, since the second sub-sensing electrode 331, which is stacked with the fourth sub-sensing electrode 335 in the thickness direction, has the same shape, recesses and protrusions can be formed in at least some portions of the line segments constituting the rhomboid or triangular shape of the fourth sub-sensing electrode 335. The rhomboid or triangular shape of the fourth sub-sensing electrode 335 formed by the line segments in which the recesses and protrusions are formed in at least some portions can be the same as the shape of the second sub-sensing electrode 331 that is stacked with the fourth sub-sensing electrode 335 in the thickness direction. For example, the planar profile of the second sub-sensing electrode 331 that corresponds to the fourth sub-sensing electrode 335 in the thickness direction can be exactly the same as the planar profile of the fourth sub-sensing electrode 335.

[0175] Figure 11 It is shown Figure 10 A view of the first sub-sensing electrode, the second sub-sensing electrode, and the connecting portion. Figure 12 It is shown Figure 10 A view of the third and fourth sub-sensing electrodes.

[0176] Reference Figure 3 as well as Figure 11 and Figure 12 As described above, the first sub-sensing electrode 311, the connecting portion 313, the second sub-sensing electrode 331, and the dummy electrode DE can be disposed in the first conductive layer ML1, and the third sub-sensing electrode 315 and the fourth sub-sensing electrode 335 can be disposed in the third conductive layer ML3. The first sub-sensing electrode 311 and the connecting portion 313 disposed in the first conductive layer ML1 can be insulated from the second sub-sensing electrode 331 and the dummy electrode DE by being spaced apart from each other. The third sub-sensing electrode 315 and the fourth sub-sensing electrode 335 disposed in the third conductive layer ML3 can be insulated from each other by being spaced apart from each other.

[0177] Although the plurality of first sub-sensing electrodes 311 spaced apart from each other in the second direction DR2 are electrically connected by the connection portion 313 provided in the first conductive layer ML1, the plurality of second sub-sensing electrodes 331, which are provided in the same layer as the first sub-sensing electrodes 311 and spaced apart from each other in the first direction DR1, are insulated from the first electrode portion 310. Therefore, the adjacent second sub-sensing electrodes 331 can be electrically connected by the fourth sub-sensing electrode 335 provided in the third conductive layer ML3.

[0178] The third sub-sensing electrode 315 and the first sub-sensing electrode 311, which are at least partially stacked on top of each other, are electrically connected, and the fourth sub-sensing electrode 335 and the second sub-sensing electrode 331, which are at least partially stacked on top of each other, are electrically connected. Therefore, the total resistance of the electrode portions 310 and 330 can be reduced.

[0179] Figure 13 It is along Figure 10 A sectional view taken from line II-II'. Figure 14 It is along Figure 10 The sectional view taken from line III-III'. Figure 15 It is along Figure 10 A sectional view taken along line IV-IV'. Figures 13 to 15 The image shows a polarizing film POL disposed on a touch sensor TSL and a window WD disposed on the polarizing film POL. It also shows a first adhesive member AM1 for bonding the polarizing film POL and the touch sensor TSL to each other and a second adhesive member AM2 for bonding the polarizing film POL and the window WD to each other.

[0180] First, refer to Figure 13The first sub-sensing electrode 311 and the second sub-sensing electrode 331 can be directly disposed on the second substrate 210. The first sub-sensing electrode 311 and the second sub-sensing electrode 331 can be spaced apart from each other, and a separating space SP is disposed therebetween.

[0181] An insulating layer ILD can be disposed on the first sub-sensing electrode 311 and the second sub-sensing electrode 331. The insulating layer ILD can be directly disposed on the upper surface of the first sub-sensing electrode 311 and the second sub-sensing electrode 331. In the separation space SP between the first sub-sensing electrode 311 and the second sub-sensing electrode 331, the insulating layer ILD can contact the side surfaces of the first sub-sensing electrode 311 and the second sub-sensing electrode 331 and directly contact the exposed second substrate 210.

[0182] The fourth sub-sensing electrode 335 can be disposed on the insulating layer ILD. The fourth sub-sensing electrode 335 can be directly disposed on the insulating layer ILD and electrically connected to the second sub-sensing electrode 331 through the second contact hole CNT2 of the insulating layer ILD.

[0183] The first adhesive member AM1 can be in direct contact with the fourth sub-sensing electrode 335. In some exemplary embodiments of this disclosure, the polarizing film POL and the first adhesive member AM1 can be omitted. In this case, the second adhesive member AM2, disposed at the lower part of the window WD, can be in direct contact with the fourth sub-sensing electrode 335.

[0184] Reference Figure 14 The third sub-sensing electrode 315 can be disposed on the insulating layer ILD. The third sub-sensing electrode 315 can be disposed in the same layer as the fourth sub-sensing electrode 335. The third sub-sensing electrode 315 can be directly disposed on the insulating layer ILD. The third sub-sensing electrode 315 and the fourth sub-sensing electrode 335 can be spaced apart from each other, with a separating space SP disposed therebetween. The third sub-sensing electrode 315 can be electrically connected to the first sub-sensing electrode 311 below the third sub-sensing electrode 315 through the first contact hole CNT1 of the insulating layer ILD.

[0185] The first adhesive member AM1 can directly contact the fourth sub-sensing electrode 335 and the third sub-sensing electrode 315. The first adhesive member AM1 can also be disposed in the partition space SP and directly contact the upper surface of the insulating layer ILD exposed through the fourth sub-sensing electrode 335 and the third sub-sensing electrode 315. In some exemplary embodiments of this disclosure, the polarizing film POL and the first adhesive member AM1 can be omitted. In this case, the second adhesive member AM2 disposed at the lower part of the window WD can directly contact the fourth sub-sensing electrode 335 and the third sub-sensing electrode 315. The second adhesive member AM2 can also be disposed in the partition space SP and directly contact the upper surface of the insulating layer ILD exposed through the fourth sub-sensing electrode 335 and the third sub-sensing electrode 315.

[0186] Reference Figure 15 The dummy electrode DE can be disposed on the second substrate 210. The dummy electrode DE can be directly disposed on the second substrate 210. The dummy electrode DE can be disposed in the separation space SP between the first sub-sensing electrode 311 and the second sub-sensing electrode 331. The dummy electrodes DE can be spaced apart from each other by a predetermined separation space that serves as the separation space between the adjacent first sub-sensing electrodes 311 and 331. The dummy electrode DE can be disposed in the same layer as the first sub-sensing electrode 311 and the second sub-sensing electrode 331.

[0187] An insulating layer ILD can be disposed on the dummy electrode DE. The insulating layer ILD can be in direct contact with the upper surface of the dummy electrode DE, and can also be disposed in the partition space adjacent to the dummy electrode DE between the sub-sensing electrodes 311 and 331, filling the partition space, contacting the side surfaces of the dummy electrode DE and the side surfaces of the sub-sensing electrodes 311 and 331, and directly contacting the upper surface of the second substrate 210 exposed in the corresponding region.

[0188] The third sub-sensing electrode 315 and the fourth sub-sensing electrode 335 may be spaced apart from each other, with a separating space SP disposed therebetween. The width of the separating space SP between the third sub-sensing electrode 315 and the fourth sub-sensing electrode 335 may be the same as the width of the separating space SP between the first sub-sensing electrode 311 and the second sub-sensing electrode 331. For example, the inner surfaces of the third sub-sensing electrode 315 and the fourth sub-sensing electrode 335 may be aligned in the thickness direction with the inner surfaces of the first sub-sensing electrode 311 and the second sub-sensing electrode 331 below them. The third sub-sensing electrode 315 and the fourth sub-sensing electrode 335 may not overlap with the dummy electrode DE in the thickness direction.

[0189] The first adhesive member AM1 can be in direct contact with the fourth sub-sensing electrode 335 and the third sub-sensing electrode 315. The first adhesive member AM1 can also be in direct contact with the upper surface of the insulating layer ILD exposed through the fourth sub-sensing electrode 335 and the third sub-sensing electrode 315. In some exemplary embodiments of this disclosure, the polarizing film POL and the first adhesive member AM1 can be omitted. In this case, the second adhesive member AM2, disposed at the lower part of the window WD, can be in direct contact with the fourth sub-sensing electrode 335 and the third sub-sensing electrode 315. The second adhesive member AM2 can also be disposed in the partition space SP and be in direct contact with the upper surface of the insulating layer ILD exposed through the fourth sub-sensing electrode 335 and the third sub-sensing electrode 315.

[0190] Figure 16 yes Figure 8 A magnified view of region B. Figure 17 It is shown Figure 16 A view of the first wiring section. Figure 18 It is shown Figure 16 A view of the first wiring section and the second wiring section. Figure 19 It is along Figure 16 A sectional view taken by line V-V'. Figure 19 The image also shows adhesive components AM1 and AM2, polarizing film POL, and window WD.

[0191] Reference Figure 3 , Figure 8 and Figures 16 to 19 The widths of touch signal lines TL1 and TL2 can be smaller than the average widths of electrode portions 310 and 330. Since resistance tends to be inversely proportional to width, reducing the resistance of the touch signal lines TL1 and TL2 themselves can be considered to prevent the aforementioned RC delay. However, because touch signal lines TL1 and TL2 are located in a non-sensing region NSA that is narrower than the sensing region SA, it may not be easy to increase the width of the touch signal lines TL1 and TL2 themselves. Therefore, unlike electrode portions 310 and 330 which include a transparent conductive material, touch signal lines TL1 and TL2 can include an opaque conductive material with a second conductive layer ML2 whose resistance is lower than that of the transparent conductive material.

[0192] For example, the second touch signal line TL2 may include a first wiring portion LP1 disposed on the second substrate 210 and a second wiring portion LP2 disposed on the first wiring portion LP1. The first wiring portion LP1 may be disposed in the first conductive layer ML1, and the second wiring portion LP2 may be disposed in the second conductive layer ML2. For example, the first conductive layer ML1 may also include the first wiring portion LP1, and the second conductive layer ML2 may also include the second wiring portion LP2.

[0193] The first wiring portion LP1 can be directly disposed on the second substrate 210, and the second wiring portion LP2 can be directly disposed on the first wiring portion LP1 and electrically connected to the first wiring portion LP1. For example, since the second touch signal line TL2 includes the first wiring portion LP1 and the second wiring portion LP2 that are in contact with each other, even when the second wiring portion LP2 disposed on the first wiring portion LP1 is disconnected, the second touch pad portion TPD2 and the second electrode portion 330 can still be electrically connected to the first wiring portion LP1 that is electrically connected to the second wiring portion LP2.

[0194] Because the width of the second wiring portion LP2 is smaller than the width of the first wiring portion LP1, the upper surface of the first wiring portion LP1 can be partially exposed. The insulating layer ILD can be directly disposed on the second wiring portion LP2 and can at least partially cover the first wiring portion LP1 and the second wiring portion LP2. For example, the insulating layer ILD can cover the side surfaces of the first wiring portion LP1 and the second wiring portion LP2, as well as the exposed upper surface of the first wiring portion LP1 and the upper surface of the second wiring portion LP2. However, the width of the second wiring portion LP2 is not limited to this and can be equal to or larger than the width of the first wiring portion LP1, such that the second wiring portion LP2 covers the side surface of the first wiring portion LP1.

[0195] Multiple second touch signal lines TL2 can be configured, and these multiple second touch signal lines TL2 can be spaced apart from each other. The first wiring portion LP1 of one second touch signal line TL2 can be spaced apart from the first wiring portion LP1 of another second touch signal line TL2 adjacent to it. Similarly, the second wiring portion LP2 of one second touch signal line TL2 can be spaced apart from the second wiring portion LP2 of another second touch signal line TL2 adjacent to it. The insulating layer ILD can be in direct contact with the upper surface of the second substrate 210 exposed through the second touch signal lines TL2.

[0196] The capacitor pattern LP3 can also be disposed on the insulating layer ILD. The capacitor pattern LP3 can also be disposed in the third conductive layer ML3. For example, the third conductive layer ML3 can also include the capacitor pattern LP3.

[0197] The capacitor pattern LP3 can be in direct contact with the insulating layer ILD. The capacitor pattern LP3 can have a width greater than that of a single second touch signal line TL2 and can prevent multiple second touch signal lines TL2 from breaking by covering and protecting them.

[0198] The first adhesive member AM1 can be in direct contact with the capacitor pattern LP3. In some exemplary embodiments of this disclosure, the polarizing film POL and the first adhesive member AM1 can be omitted. In this case, the second adhesive member AM2, disposed at the lower part of the window WD, can be in direct contact with the capacitor pattern LP3.

[0199] Except for the connection structure, the wiring structure of the first touch signal line TL1 and its relationship with the capacitor pattern LP3 are basically the same as those of the second touch signal line TL2. Therefore, it is clear that, except for the connection relationship between the electrode portion and the touch pad portion in the second touch signal line TL2, the above description of the second touch signal line TL2 can be applied to the first touch signal line TL1 as is.

[0200] In the following description, exemplary embodiments of the present disclosure will be described. In the embodiments described below, elements identical to those in the above embodiments will be denoted by the same reference numerals, and to the extent that their description is omitted or simplified, it may be assumed that these elements are at least similar to corresponding elements described elsewhere in this disclosure.

[0201] Figure 20 This is a plan view of a portion of a touch sensor according to an exemplary embodiment of the present disclosure. Figure 21 yes Figure 20 A sectional view.

[0202] Reference Figure 20 and Figure 21 The touch sensor according to an exemplary embodiment of the present disclosure and Figure 10 and Figure 15 The difference in the touch sensor shown is that the fourth sub-sensing electrode 335_1 of the second electrode section 330_1 is superimposed with the dummy electrode DE.

[0203] For example, the fourth sub-sensing electrode 335_1 of the second electrode portion 330_1 may be at least partially superimposed on the dummy electrode DE, and also at least partially superimposed on the separation space between the dummy electrode DE and the second sub-sensing electrode 331. When no conductive layer is provided on the upper part of the separation space between the dummy electrode DE and the second sub-sensing electrode 331, a refractive index difference may occur in the thickness direction between the separation space and the surrounding portion (where the conductive layer is provided) of the separation space, and a pattern may be visible from the outside. However, according to this embodiment, because the fourth sub-sensing electrode 335_1 of the second electrode portion 330_1 is at least partially superimposed on the dummy electrode DE, and also at least partially superimposed on the separation space between the dummy electrode DE and the second sub-sensing electrode 331, the viewing of the pattern can be prevented.

[0204] exist Figure 21 In the diagram, the inner surface of the fourth sub-sensing electrode 335_1 is shown aligned in the thickness direction with the side surface of the dummy electrode DE opposite to the first sub-sensing electrode 311. However, this disclosure is not limited to this; the inner surface of the fourth sub-sensing electrode 335_1 may be disposed between the side surface of the dummy electrode DE opposite to the first sub-sensing electrode 311 and the side surface of the dummy electrode DE opposite to the second sub-sensing electrode 331.

[0205] Figure 22 This is a plan view of a portion of a touch sensor according to an exemplary embodiment of the present disclosure. Figure 23 yes Figure 22 A sectional view.

[0206] Reference Figure 22 and Figure 23 According to this embodiment, the touch sensor and Figure 10 and Figure 15 The difference in the touch sensor shown is that the third sub-sensing electrode 315_1 of the first electrode section 310_1 is superimposed with the dummy electrode DE.

[0207] For example, the third sub-sensing electrode 315_1 of the first electrode portion 310_1 can be at least partially superimposed on the dummy electrode DE, and furthermore, it can be at least partially superimposed on the separation space between the dummy electrode DE and the first sub-sensing electrode 311. In this way, it is possible to prevent the pattern from being viewed due to the separation space between the dummy electrode DE and the first sub-sensing electrode 311.

[0208] exist Figure 23 In the diagram, the inner surface of the third sub-sensing electrode 315_1 is shown aligned in the thickness direction with the side surface of the dummy electrode DE opposite to the second sub-sensing electrode 331. However, this disclosure is not limited to this; the inner surface of the third sub-sensing electrode 315_1 may be disposed between the side surface of the dummy electrode DE opposite to the second sub-sensing electrode 331 and the side surface of the dummy electrode DE opposite to the first sub-sensing electrode 311.

[0209] Figure 24 This is a plan view illustrating a portion of a touch sensor according to an exemplary embodiment of the present disclosure. Figure 25 yes Figure 24 A sectional view.

[0210] Reference Figure 24 and Figure 25 According to this embodiment, the touch sensor and Figure 20 and Figure 21The difference in the touch sensor shown is that not only the fourth sub-sensing electrode 335_1 of the second electrode section 330_1, but also the third sub-sensing electrode 315_1 of the first electrode section 310_1, are at least partially superimposed with the dummy electrode DE.

[0211] For example, according to this embodiment, the fourth sub-sensing electrode 335_1 of the second electrode portion 330_1 and the third sub-sensing electrode 315_1 of the first electrode portion 310_1 can both be at least partially superimposed on the dummy electrode DE. The fourth sub-sensing electrode 335_1 and the third sub-sensing electrode 315_1 can be spaced apart from each other, and a predetermined separation space is disposed therebetween. The width of the dummy electrode DE can be larger than the width of the separation space. In a plan view, the dummy electrode DE can completely cover the separation space.

[0212] Figure 26 This is a plan view of a portion of a touch sensor according to an exemplary embodiment of the present disclosure. Figure 27 yes Figure 26 A sectional view.

[0213] Reference Figure 26 and Figure 27 The touch sensor according to an exemplary embodiment of the present disclosure and Figure 10 and Figure 15 The difference in the touch sensor shown is that the third sub-sensing electrode 315 and the fourth sub-sensing electrode 335 are spaced apart from each other, and a partition space SP_1 with a width greater than the width of the partition space SP is disposed therebetween. The difference is that the dummy electrode DE_1 disposed in the same layer as the sub-sensing electrodes 315 and 335 is further disposed in the partition space SP_1.

[0214] For example, the third sub-sensing electrode 315 and the fourth sub-sensing electrode 335 can be spaced apart from each other, and a partition space SP_1 with a width larger than the width of the aforementioned partition space SP is disposed therebetween. Furthermore, a dummy electrode DE_1 disposed in the same layer as the sub-sensing electrodes 315 and 335 can also be disposed in the partition space SP_1. Figure 3 In the third conductive layer ML3. For example, the third conductive layer ML3 may also include a dummy electrode DE_1.

[0215] Sub-sensing electrodes 315 and 335 may include an inner surface that is more concave in the direction away from the dummy electrode DE_1 compared to the inner surface of their corresponding sub-sensing electrodes 311 and 331. In a plan view, the dummy electrode DE_1 may be superimposed on the partition space SP between the first sub-sensing electrode 311 and the second sub-sensing electrode 331, and the width of the dummy electrode DE_1 is larger than the width of the dummy electrode DE. Because the width of the dummy electrode DE_1 is larger than the width of the partition space SP, the dummy electrode DE_1 can completely cover the partition space SP. Furthermore, the dummy electrode DE_1 may be partially superimposed on the sub-sensing electrodes 311 and 331 below it. For example, the inner surfaces of the sub-sensing electrodes 311 and 331 may be disposed between the two side surfaces of the dummy electrode DE_1 (at the inner side of the two side surfaces). The partition space between sub-sensing electrodes 315 and 335 adjacent to the dummy electrode DE_1 can be superimposed on the sub-sensing electrodes 311 and 331 below them, and the sub-sensing electrodes 311 and 331 can completely cover the partition space between sub-sensing electrodes 315 and 335 adjacent to the dummy electrode DE_1.

[0216] According to this embodiment, in the plan view, the dummy electrode DE_1 can at least partially overlap with the partition space SP between the first sub-sensing electrode 311 and the second sub-sensing electrode 331. Because the width of the dummy electrode DE_1 is larger than the width of the partition space SP, the dummy electrode DE_1 can completely cover the partition space SP, thereby preventing the pattern from being viewed by covering the partition space between the sub-sensing electrodes 311 and 331 and the dummy electrode DE_1. Furthermore, the pattern can also be prevented from being viewed by covering the partition space between the dummy electrode DE_1 and the sub-sensing electrodes 315 and 335 with the sub-sensing electrodes 311 and 331 located below the partition space between the dummy electrode DE_1 and the sub-sensing electrodes 315 and 335.

[0217] In some exemplary embodiments of this disclosure, Figure 26 and Figure 27The arrangement of the first conductive layer ML1 and the third conductive layer ML3 can be reversed. For example, the third sub-sensing electrode 315 and the fourth sub-sensing electrode 335 can be spaced apart, and a partition space SP_1 with a width smaller than the width of the partition space SP is disposed therebetween. A dummy electrode DE_1 disposed in the same layer as the sub-sensing electrodes 315 and 335 can be further disposed in the partition space SP_1. The sub-sensing electrodes 315 and 335 may include an inner surface that protrudes more in the direction approaching the dummy electrode DE_1 than the inner surface of their corresponding sub-sensing electrodes 311 and 331. In the plan view, the dummy electrode DE can at least partially overlap with the partition space SP_1 between the third sub-sensing electrode 315 and the fourth sub-sensing electrode 335, because the width of the dummy electrode DE is larger than the width of the partition space SP_1, so the dummy electrode DE can completely cover the partition space SP_1. Furthermore, the dummy electrode DE can partially overlap with the sub-sensing electrodes 315 and 335 above it. For example, the inner surfaces of the sub-sensing electrodes 315 and 335 can be positioned further inward than the two side surfaces of the dummy electrode DE. The partition space between the sub-sensing electrodes 311 and 331 adjacent to the dummy electrode DE can at least partially overlap with the sub-sensing electrodes 315 and 335 above them, and the sub-sensing electrodes 315 and 335 can completely cover the partition space adjacent to the dummy electrode DE between the sub-sensing electrodes 311 and 331.

[0218] Figure 28 This is a plan view of a portion of a touch sensor according to an exemplary embodiment of the present disclosure. Figure 29 It is along Figure 28 A sectional view taken from line VI-VI'. Figure 30 It is along Figure 28 A sectional view taken from line VII-VII'.

[0219] Reference Figures 28 to 30 In the touch sensor according to this embodiment, except that the first electrode portion 310_2 extends mainly in the first direction DR1, the first electrode portion 310_2 and... Figure 10 The second electrode portion 330 has the same arrangement and shape, except that the second electrode portion 330_2 extends mainly in the second direction DR2, and the second electrode portion 330_2 is the same as... Figure 10 The first electrode portion 310 has the same arrangement and shape.

[0220] For example, each second electrode portion 330_2 may include a plurality of second sub-sensing electrodes 331_1 spaced apart from each other in the first direction DR1, a sensing connection portion 333 physically connecting adjacent second sub-sensing electrodes 331_1, and a fourth sub-sensing electrode 335_2 disposed on the second sub-sensing electrodes 331_1 and electrically connected to the second sub-sensing electrodes 331_1 through a second contact hole CNT2 of the insulating layer ILD. The second sub-sensing electrodes 331_1 and the sensing connection portion 333 connecting adjacent second sensing electrodes 331_1 of the second electrode portion 330_2 may have a linear shape extending mainly in the first direction DR1.

[0221] The first electrode portion 310_2 may extend primarily along the second direction DR2. Multiple first electrode portions 310_2 may be configured, and these portions may be spaced apart from each other along the first direction DR1. The first electrode portion 310_2 may be electrically insulated from the second electrode portion 330_2. Each first electrode portion 310_2 may include multiple first sub-sensing electrodes 311_1 spaced apart from each other along the second direction DR2, and a third sub-sensing electrode 315_2 electrically connected to the first sub-sensing electrodes 311_1 through a first contact hole CNT1 in the insulating layer ILD. The first sub-sensing electrode 311_1 may be spaced apart from its adjacent second sub-sensing electrode 331_1 (a predetermined separating space SP is disposed therebetween), and may be electrically insulated from the second sub-sensing electrode 331_1. Meanwhile, although the plurality of second sub-sensing electrodes 331_1 spaced apart from each other in the first direction DR1 are electrically connected by sensing connection portions 333 disposed in the same layer (first conductive layer ML1) to form a linear shape, since the plurality of first sub-sensing electrodes 311_1 disposed in the same layer as the second sub-sensing electrodes 331_1 and spaced apart from each other in the second direction DR2 are insulated from the second electrode portion 330_2 as described above, the adjacent first sub-sensing electrodes 311_1 can be electrically connected by third sub-sensing electrodes 315_2 disposed in a layer different from the first conductive layer ML1 (third conductive layer ML3). The third sub-sensing electrode 315_2 can be spaced apart from the adjacent fourth sub-sensing electrode 335_2 (and a predetermined separation space SP is disposed therebetween), and can be electrically insulated from the fourth sub-sensing electrode 335_2.

[0222] Figure 31 yes Figure 19 Examples of variations of the embodiments.

[0223] Reference Figure 31 According to this embodiment, the touch sensor and Figure 19 The difference in the touch sensor shown is that the capacitor pattern LP3 covering multiple second touch signal lines TL2 is omitted.

[0224] Because all other details are consistent with the above references Figures 16 to 19 The details described are the same, so repeated descriptions will be omitted, and it can be assumed that these elements for which descriptions have been omitted are at least similar to the corresponding elements described elsewhere in this disclosure.

[0225] Figure 32 This is a plan view of a portion of a touch sensor according to an exemplary embodiment of the present disclosure. Figure 33 yes Figure 32 A sectional view.

[0226] Reference Figure 32 and Figure 33 According to this embodiment, the touch sensor and Figure 26 and Figure 27 The difference in the touch sensor shown is that the dummy electrode DE_1 can be formed into multiple patterns.

[0227] For example, in a touch sensor, according to this embodiment, the dummy electrode DE_1 may include a first pattern covering the separation space between the dummy electrode DE and the first sub-sensing electrode 311 and a second pattern covering the separation space between the dummy electrode DE and the second sub-sensing electrode 331.

[0228] The first pattern and the second pattern can be spaced apart from each other, and a predetermined separation space is disposed therebetween. The separation space between the first pattern and the second pattern can be at least partially superimposed on the dummy electrode DE in the thickness direction. The dummy electrode DE can completely cover the separation space between the first pattern and the second pattern.

[0229] According to the touch sensor and display device based on exemplary embodiments of the present disclosure, the resistance of the electrode portion of the touch sensor can be reduced.

[0230] For illustrative purposes, although exemplary embodiments of the invention have been disclosed, those skilled in the art will understand that various modifications, additions and substitutions are possible without departing from the scope and spirit of the disclosure.

Claims

1. A display device, the display device comprising: First base; Multiple light-emitting elements are disposed on the first substrate; The second substrate is configured to be opposite to the first substrate; as well as A touch sensor is mounted on the second substrate. The touch sensor includes: a first touch conductive layer disposed on the second substrate, and comprising a first transparent conductive material and a first dummy electrode; a touch insulating layer disposed on the first touch conductive layer; and a second touch conductive layer disposed on the touch insulating layer, and comprising a second transparent conductive material. The first touch conductive layer includes: a plurality of first sub-sensing electrodes arranged in a first direction; a connecting portion connecting adjacent first sub-sensing electrodes; and a plurality of second sub-sensing electrodes arranged in a second direction intersecting the first direction and spaced apart from the plurality of first sub-sensing electrodes and the connecting portion. The second touch conductive layer includes a third sub-sensing electrode and a fourth sub-sensing electrode. The third sub-sensing electrode is electrically connected to one of the plurality of first sub-sensing electrodes through a plurality of first contact holes passing through the touch insulating layer. The fourth sub-sensing electrode is electrically connected to one of the plurality of second sub-sensing electrodes through a plurality of second contact holes passing through the touch insulating layer, thereby electrically connecting adjacent second sub-sensing electrodes among the plurality of second sub-sensing electrodes. The fourth sub-sensing electrode is spaced apart from the third sub-sensing electrode. The fourth sub-sensing electrode at least partially covers the first dummy electrode.

2. The display device according to claim 1, wherein, The third sub-sensing electrode is at least partially superimposed on the first sub-sensing electrode, and the fourth sub-sensing electrode is at least partially superimposed on the second sub-sensing electrode.

3. The display device according to claim 2, wherein, The fourth sub-sensing electrode extends in the second direction, overlaps at least partially with the connecting portion in the thickness direction, and is electrically insulated from the connecting portion.

4. The display device according to claim 3, wherein: The first dummy electrode is disposed between the first sub-sensing electrode and the second sub-sensing electrode, which are adjacent to each other; and The first dummy electrode is a floating electrode, which is spaced apart from the first sub-sensing electrode adjacent to the floating electrode, and the separation space is located between the floating electrode and the first sub-sensing electrode. It is also spaced apart from the second sub-sensing electrode adjacent to the floating electrode, and the separation space is located between the floating electrode and the second sub-sensing electrode.

5. The display device according to claim 4, wherein: The fourth sub-sensing electrode at least partially covers the separation space between the first dummy electrode and the second sub-sensing electrode; and The third sub-sensing electrode at least partially covers the separation space between the first dummy electrode and the first sub-sensing electrode, and at least partially covers the first dummy electrode.

6. The display device according to claim 4, wherein: The second touch conductive layer further includes a second dummy electrode, which is disposed between the adjacent third sub-sensing electrode and the fourth sub-sensing electrode; and The second dummy electrode is spaced apart from the third sub-sensing electrode adjacent to the second dummy electrode, and the separation space is located between the second dummy electrode and the third sub-sensing electrode. It is also spaced apart from the fourth sub-sensing electrode adjacent to the second dummy electrode, and the separation space is located between the second dummy electrode and the fourth sub-sensing electrode.

7. The display device according to claim 6, wherein, The width of the second dummy electrode is greater than the width of the first dummy electrode, and the second dummy electrode at least partially covers the separation space between the first dummy electrode and the second sub-sensing electrode, as well as the separation space between the first dummy electrode and the first sub-sensing electrode.

8. The display device according to claim 7, wherein, The second dummy electrode comprises a plurality of dummy patterns separated from each other, and the first dummy electrode covers the separation space between adjacent dummy patterns in the plurality of dummy patterns.

9. The display device according to any one of claims 3 to 8, wherein: The touch sensor further includes a third touch conductive layer, which is disposed between the first touch conductive layer and the touch insulating layer; and The third touch conductive layer comprises an opaque conductive material.

10. The display device according to claim 9, wherein: The touch sensor also includes multiple touch wires, which are connected to the plurality of first sub-sensing electrodes or the plurality of second sub-sensing electrodes; The multiple touch wires include a first wiring section and a second wiring section disposed on the first wiring section; The first touch conductive layer further includes the first wiring portion; and The third touch conductive layer also includes the second wiring portion.

11. The display device according to claim 10, wherein, The second wiring section is directly disposed on the first wiring section and is electrically connected to the first wiring section.

12. The display device according to claim 10, wherein, The touch sensor also includes a capacitor pattern covering the plurality of touch wires, and the second touch conductive layer also includes the capacitor pattern.

13. The display device according to any one of claims 3 to 8, wherein, Both the first transparent conductive material and the second transparent conductive material comprise amorphous indium tin oxide.

14. The display device according to any one of claims 3 to 8, wherein, The first substrate includes a display substrate, the second substrate includes an encapsulation substrate for sealing the plurality of light-emitting elements, and the touch sensor is directly disposed on the encapsulation substrate.

15. The display device according to any one of claims 3 to 8, wherein, Each of the first sub-sensing electrode, the second sub-sensing electrode, the third sub-sensing electrode, and the fourth sub-sensing electrode has a planar shape.

16. The display device according to any one of claims 3 to 8, further comprising a polarizing film disposed on the touch sensor and an adhesive member disposed between the polarizing film and the touch sensor. in, The adhesive component is in direct contact with the second touch conductive layer.

17. The display device according to any one of claims 3 to 8, wherein: The third sub-sensing electrode and the first sub-sensing electrode, which is superimposed on the third sub-sensing electrode in the thickness direction, have the same planar contour; and The fourth sub-sensing electrode and the second sub-sensing electrode, which is superimposed on the fourth sub-sensing electrode in the thickness direction, have the same planar profile.

18. A touch sensor, the touch sensor comprising: The first touch conductive layer includes a first transparent conductive material; A touch insulating layer is disposed on the first touch conductive layer; as well as A second conductive layer is disposed on the conductive layer and includes a second transparent conductive material. The first touch conductive layer includes: a plurality of first sub-sensing electrodes arranged in a first direction; a connecting portion configured to connect adjacent first sub-sensing electrodes among the plurality of first sub-sensing electrodes; a plurality of second sub-sensing electrodes arranged in a second direction intersecting the first direction and spaced apart from the plurality of first sub-sensing electrodes and the connecting portion; and a first dummy electrode. The second touch conductive layer includes a third sub-sensing electrode and a fourth sub-sensing electrode. The third sub-sensing electrode is electrically connected to one of the plurality of first sub-sensing electrodes through a plurality of first contact holes passing through the touch insulating layer. The fourth sub-sensing electrode is electrically connected to one of the plurality of second sub-sensing electrodes through a plurality of second contact holes passing through the touch insulating layer, thereby electrically connecting adjacent second sub-sensing electrodes among the plurality of second sub-sensing electrodes. The fourth sub-sensing electrode is spaced apart from the third sub-sensing electrode. The fourth sub-sensing electrode at least partially covers the first dummy electrode.

19. The touch sensor according to claim 18, wherein: The third sub-sensing electrode is at least partially superimposed on the first sub-sensing electrode; The fourth sub-sensing electrode is at least partially superimposed on the second sub-sensing electrode; The fourth sub-sensing electrode extends in the second direction; and The fourth sub-sensing electrode is at least partially superimposed on the connecting portion in the thickness direction and is electrically insulated from the connecting portion.

20. The touch sensor according to claim 18, further comprising a third touch conductive layer disposed between the first touch conductive layer and the touch insulating layer, wherein: The third touch conductive layer comprises an opaque conductive material; The touch sensor further includes multiple touch wires connected to the plurality of first sub-sensing electrodes or the plurality of second sub-sensing electrodes; and The multiple touch wirings include a first wiring portion and a second wiring portion disposed on the first wiring portion, the first touch conductive layer further includes the first wiring portion, and the third touch conductive layer further includes the second wiring portion.

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